Energy in an ecosystem flows directly from _______. a. producers to tertiary consumers b. producers to secondary consumers c. tertiary consumers to secondary consumers d. secondary consumers to tertiary consumers please select the best answer from the choices provided a b c d
Answers
Answer:
A.
Explanation:
Primary producers use energy from the sun to produce their own food in the form of glucose, and then primary producers are eaten by primary consumers who are in turn eaten by secondary consumers, and so on, so that energy flows from one trophic level, or level of the food chain, to the next.
Energy in an ecosystem flows directly from producers to tertiary consumers. So, the correct option is A.
What do you mean by Ecosystem?An Ecosystem may be defined as an area where organisms of different species are present together in a given time and interact with one another in order to survive.
In an ecosystem, producers produce the energy in the presence of sunlight through the process of photosynthesis. And then passes its energy to primary consumers (herbivores), then primary consumer passes their energy to secondary consumers (carnivores), then secondary consumers pass their energy to tertiary consumers. According to Lindeman, only 10% of energy get transferred to each trophic level.
Therefore, Energy in an ecosystem flows directly from producers to tertiary consumers.
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Related Questions
Biomagnification is... concentration of a contaminant stays the same as you move to higher trophic concentration of a contaminant increases as you move to higher trophic level concentration of a contaminant increases as an individual grows concentration of a contaminant stays the same as an individual grows
Answers
Answer: Biomagnification refers to the process by which the concentration of a contaminant increases as you move to higher trophic levels in a food chain or food web. In other words, as organisms consume other organisms, the contaminants present in the prey accumulate and become more concentrated in the bodies of the predators.
To understand this process, let's consider an example involving a water ecosystem. Suppose a pollutant is released into the water, such as a pesticide or heavy metal. The primary producers, such as algae or aquatic plants, absorb small amounts of the contaminant from the water. As herbivorous organisms consume these primary producers, they ingest the contaminants along with their food.
Since the contaminant is not easily broken down or eliminated from the organisms' bodies, it accumulates over time. As a result, the concentration of the contaminant becomes higher in the herbivores than in the primary producers. Now, when carnivorous organisms consume the herbivores, they not only accumulate the contaminant from their own food but also from all the prey they have consumed. This leads to an even higher concentration of the contaminant in the carnivores.
Therefore, biomagnification describes the phenomenon where the concentration of a contaminant increases significantly as you move up the food chain or trophic levels. The highest concentration of contaminants is often found in top predators, such as large fish, birds of prey, or mammals, which can have adverse effects on their health and reproductive capabilities.
It's important to note that biomagnification primarily occurs for persistent and non-biodegradable contaminants that cannot be easily metabolized or excreted by organisms. These contaminants are often lipophilic (fat-soluble), which allows them to accumulate in fatty tissues and remain in the organism's body for long periods, leading to biomagnification.
Explanation:
in your backyard you overturn a large rock. in the damp soil underneath the rock, you see various insects scurrying for cover: one black spider, five black ants, two brown beetles, and three gray pillbugs. in this community of organisms, species richness is represented by
Answers
The four different species of creatures in this community of organisms stand in for species richness. This assertion is true.
How can I calculate the number of species present in a sample?It is possible to estimate the species richness in the population from which the sample was taken using characteristics of the sample, particularly the number of species only represented by one or a small number of individuals. Both the sample's heterogeneity and the number of individuals have an impact on the observed species richness.
How does species evenness work?The evenness of a species' distribution within a system is gauged by its species evenness. When scale is used, species evenness is true for all three of the defined metrics.
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erythromycin, the first macrolide antibiotic, was discovered in 1949 when scientists at eli lilly isolated the natural product from the culture broth of the soil-dwelling fungus saccharopolyspora erythrea. chemical modifications in its structure were needed due to being unstable under acidic conditions, giving rise to side effects such as stomach pain. select which category of antimicrobial drugs erythromycin belongs to?
Answers
Antimicrobial drugs erythromycin belongs to semisynthetic drugs. Synthetic drugs are also called 'new psychoactive substances' (NSPs).
What is semisynthetic drugs?Semi-synthetic drugs are made by converting starting materials from natural sources into final products through chemical reactions. Examples of semi-synthetic medicine are : antibiotic, penicillin and chemotherapy. These drugs work by attacking the cell growth or division.
In semi-synthetic drugs, nucleus of the drug obtained from natural source is kept intact but the chemical structure is changed. Semi-synthesis is a type of a chemical synthesis that uses the compounds isolated from natural sources as starting material like bacterial or cell cultures or plant material.
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Based on Darwin's theory of evolution by natural selection, the differences in finch beak shape can be explained by which of the following statements?
Group of answer choices
A. Environmental conditions allowed finches with certain beak shapes to obtain more food, survive longer, and reproduce more.
B. Individual finches' beak shapes are modified over their life through a process known as adaptation.
C. Differences in the environment caused finches to change their beak shapes.
D. Finches have different beak shapes because the Galapagos Islands has a wide variety of food available.
Answers
Answer:
A. Environmental conditions allowed finches with certain beak shapes to obtain more food, survive longer, and reproduce more.
Explanation:
Darwin's Theory derives from evolution, which can take thousands of years to become apparent. This automatically eliminates B as an answer choice. Since it asks about Darwin's theory, D cannot be correct because it has no content from the actual theory. C can be correct, but it makes no mention of Darwin's theory and doesn't specify why the beaks changed. The correct answer is A.
The correct answer is A. Environmental conditions allowed finches with certain beak shapes to obtain more food, survive longer, and reproduce more.
According to Darwin's theory of evolution by natural selection, organisms that possess advantageous traits in a given environment are more likely to survive, reproduce, and pass on those traits to the next generation. In the case of the finches in the Galapagos Islands, their beak shapes have diversified due to variations in environmental conditions and food availability on different islands.
Different types of food sources require different beak shapes for efficient feeding. For example, finches with long, narrow beaks are better suited for extracting insects from tree bark, while those with short, stout beaks are more adept at cracking seeds. When environmental conditions favored certain types of food, finches with beak shapes that allowed them to access and exploit those resources more effectively had a survival advantage. Over time, these advantageous traits were passed down to subsequent generations, leading to the diversification of finch beak shapes.
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Question1:
What is aggregation with respect to OOP? – (1 mark) In your explanation you must:
- Differentiate between the two forms aggregation and composition. (1 mark each)
- Explain how they are shown in UML. – (0.5 marks each)
Question2:
Clearly explain the difference between an object and a class (you may use examples or diagrams to assist).
What is an access modifier and why is it important? -( 1 mark for its importance and usage)
In your explanation you must also indicate:
- The differences between public and private access modifiers. -(0.5 marks each)
How are they shown in a UML diagram. –(0.5 marks each)
Answers
Aggregation with respect to OOP is a technique of object composition that is employed when one object is a part of a larger object, but the smaller object may exist independently of the larger one. The primary difference between composition and aggregation is that in composition, the objects cannot exist independently of the composite object, whereas in aggregation, the objects may exist independently.
An object is an instance of a class, while a class is a template or blueprint for creating objects. An object is an instance of a class that contains all of the characteristics of the class, including its attributes and methods, whereas a class is the definition or representation of those attributes and methods
It is necessary to include the private keyword in the definition of a class, method, or variable to make it private. In UML diagrams, a plus symbol (+) is used to indicate a public method, while a minus symbol (-) is used to indicate a private method.
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DNA is in what form during interphase?
Answers
Answer:
During interphase (1), chromatin is in its least condensed state and appears loosely distributed throughout the nucleus. Chromatin condensation begins during prophase (2) and chromosomes become visible. Chromosomes remain condensed throughout the various stages of mitosis (2-5).
DNA is in form during interphase During interphase, the cell DNA isn't condensed and is loosely distributed.
What happens during interphase?A stain for heterochromatin (which shows the placement of chromosomes) indicates this large distribution of chromatin. The equal stain additionally indicates the organized, aligned shape of the chromosomes in the course of mitosis.
Nuclear DNA remains in a semi-condensed chromatin structure throughout the interphase. During the S phase, DNA replication results in the creation of identical pairs of DNA molecules, known as sister chromatids, which are tightly linked to the centromeric region.
During the S phase, the centrosome is duplicated.
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the presence of gram-variable bacilli on the surface of epithelial cells collected from the vaginal mucosa indicates a. cervicitis. b. poor staining technique. c. bacterial vaginosis. d. diphtheria.
Answers
The presence of gram-variable bacilli on the surface of epithelial cells collected from the vaginal mucosa indicates c. Bacterial Vaginosis
Bacterial Vaginosis (BV) is the most common vaginal infection among women of childbearing age. Causing severe complications related to the reproductive health of women. This condition is characterized by replacement of vaginal lactobacilli with predominantly anaerobic micro-organisms such as Gardnerella vaginalis.
Gardnerella vaginalis is is Gram-variable bacilli or coccobacilli; catalase and oxidase negative, hydrolysis of sodium hippurate positive; acid production from glucose, maltose and sucrose (variable). Commonly described as a Gram-variable or Gram-uncertain micro-organism, meaning that its reaction to Gram staining can vary from negative to positive.
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A caterpillar spends time as a caterpillar, then in a distinct period in a chrysalis, and then emerges as a butterfly. In terms of development, this is
Answers
In terms of development, this is an example of complete metamorphosis.
Complete metamorphosis is a developmental process that involves distinct stages: egg, larva (caterpillar), pupa (chrysalis), and adult (butterfly). During complete metamorphosis, the organism undergoes significant changes in body structure, behavior, and ecological role as it progresses through each stage.
The transition from a caterpillar to a butterfly involves a dramatic transformation within the pupal stage, where the larval tissues are broken down and reorganized into the adult form. This process allows for the specialization of each stage to fulfill different ecological functions, such as feeding and growth as a caterpillar and reproduction as an adult butterfly. Complete metamorphosis is characteristic of insects like butterflies, moths, beetles, and flies.
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The complete question is:
A caterpillar spends time as a caterpillar, then in a distinct period in a chrysalis, and then emerges as a butterfly. In terms of development, this is called?
To enhance oral and written presentations, scientists often use?
Answers
Answer:
all of these
Explanation:
A.
graphs.
B.
charts.
C.
tables.
D.
all of these
Presentations are oral and written ways of expressing the topic matter in an effective manner. Scientists often use graphs, charts, and tables for presentations. Thus, option D is correct.
What are the components of the presentation?Presentations are the programs that represent the data and information by various elements that make it look effective and presentable. It allows the readers to understand the concept more easily.
It includes the use of graphs that represents the data and census in vertical, horizontal, and dot line, and are used to compare the information. On the other hand, the charts can be like a pie chart that shows the proportions and ratios.
The tables are used to present the data in tabular form, arranged in columns and rows to represent the statistical data. It summarizes the input and output.
Therefore, option D. all of these can be used for an effective presentation.
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Your question is incomplete, but most probably your full question was, To enhance oral and written presentations, scientists often use?
A. graphs
B. charts
C. tables
D. all of these
Explain the relationship between the loss of Arctic Ice and the sustainability of
human populations.
Answers
The loss of Artic ice is negative between human population. It will cause human population who live in coastal areas in the artic circle will have to deal with erosion on the coast lines.
At the beginning of cellular respiration, energy is stored in the bonds of _______ molecules. At the end of the cellular respiration process, energy is stored in the bonds of ______ molecules. a CO2, glucose b CO2, ATP c glucose, ATP
Answers
Answer:
C I would say
Explanation:
trong chương trình lớp 7 các em đã học các ngành động vật nào?
Answers
Answer:
what's this can u explain me in hindi pls
What do aerobic respiration and anaerobic respiration have in common?
Both begin with glycolysis.
• Both
occur In mitochondria.
• Both require oxygen to proceed.
• Both end with the electron transport chain.
Answers
Answer:
both occur in mitochondria
Explanation:
both require oxygen to proceed
Answer:
both occur in mitochondria
Explanation:
edge 2023
Help? I don't understand
Answers
Answer:
Secondary succession is more common and usually occurs faster than primary succession because the substrate is already present.
Explanation:
Hope it helped:)
[OU.02H]The first coordinate of the celestial coordinate system is called
-right ascension
-declination
-planisphere
-celestial equator
Answers
The correct option is the planisphere.
The planisphere is the first coordinate of the celestial coordinate system
The celestial coordinate system is a system of reference to assign positions to objects in the celestial sphereThe celestial coordinate system is one of the four astronomical coordinate systemsThe other coordinate systems are the equatorial, altazimuth and galactic coordinate systemsThe planisphere is a computing instrument to help in learning about the recognition of stars and constellationsIt can be set to depict an object's location in the sky at any particular date and timeThere are 2 main methods used in planispheresThe disadvantage is that it can be used only between specific latitudesThe planisphere is used as a reference to find a celestial object's position, hence it is the first coordinate of the celestial coordinate system.
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based on scientific research, which statement best describes mutations?
Answers
Answer:
Based on scientific research the best statement to describe mutations is that they are rare occurrences.
Explanation:
:)
HURRY 29 POINTS
Which graph best represents the relationship between sustainability and biodiversity?
Answers
Answer:
the last graph represents the best about relationship between sustainability and biodiversity.
The third graph represents the relationship between sustainability and biodiversity due to upward movement of the line.
Which graph represent relationship between sustainability and biodiversity?Third graph best represents the relationship between sustainability and biodiversity because in this graph both sustainability and biodiversity increases as the graph goes upward.
So we can conclude that third graph represents the relationship between sustainability and biodiversity due to upward movement of the line.
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which term containing a prefix, root, and suffix means derived from a single colony of cells? which term containing a prefix, root, and suffix means derived from a single colony of cells? polyclonal monocyte univalent bivalent monoclonal
Answers
The term "monoclonal" consists of the prefix "mono-" meaning "single," the root "clone" referring to a group of genetically identical cells, and the suffix "-al" indicating "pertaining to." Therefore, "monoclonal" signifies a substance or organism derived from a single colony of cells.
This term is commonly used in biology and medicine to describe a population of cells or antibodies that are all identical to each other, originating from a single cell.
Monoclonal antibodies, for example, are antibodies produced by identical immune cells that target a specific antigen. These antibodies have revolutionized medical research, diagnostics, and therapeutics due to their specificity and uniformity.
Monoclonal organisms or cell lines are valuable in scientific investigations as they provide a consistent and homogeneous model for studying biological processes or producing desired substances.
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How does the microvilli adapt a cell to it's function of absorbing glucose?
Answers
Blood capillaries are abundant in microVilli, and as blood is constantly flowing through them, a sharp concentration gradient is kept there.
Explain about the functioning of small intestine?The alimentary canal as well as the accompanying glands make up the digestive system. It is segmented into several parts, including the mouth, stomach, and the large and small intestines. These areas are where unique digestion and absorption processes occur.
The large intestine transports the food to the colon, from where it travels to the rectum and then exits the body by the anus. The small intestine continues to transport food including the stomach up to the colon. This organ's primary job is to facilitate digestion.Microvilli are protrusions seen on the epithelial cells that encase each villus. All of these broaden the surface area that food that has been digested—now just simple molecules—is absorbed over. The majority of the food that has been digested goes through the gut wall's epithelial cells and is then transported to the liver by blood.Know more about the small intestine
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(0)
Fig. 6.1
When a virus infects a human host, it causes the host's cells to produce many new copies of the
virus.
The flu vaccination must be given each year because there are frequent mutations in the RNA of the virus. The antigens on the surface of the virus are made of protein.
The virus uses the organelles and enzymes in the host's cells to produce new copies of itself.
Suggest the role of the viral RNA in the production of viral proteins.
JAJOT)
12
Answers
Viral RNA plays a crucial role in the production of viral proteins. Once the virus infects a human host cell, the viral RNA enters the host cell's cytoplasm.
The viral RNA carries the genetic instructions necessary for the synthesis of viral proteins. It serves as a template for the host cell's ribosomes to read and translate into viral proteins.
The viral RNA is transcribed into messenger RNA (mRNA) by the host cell's enzymes. The mRNA then moves to the ribosomes, where it is used as a blueprint for protein synthesis. Ribosomes read the sequence of the viral mRNA and assemble the corresponding amino acids into viral proteins.
These viral proteins are essential for the replication and assembly of new virus particles. They include structural proteins that form the viral capsid or envelope and non-structural proteins that are involved in various stages of the viral life cycle, such as viral replication and evasion of the host immune response.
Therefore, the viral RNA acts as a crucial intermediary between the virus's genetic information and the production of viral proteins, enabling the virus to hijack the host cell's machinery for its own replication and propagation.
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What is created using the sugars that are
produced during photosynthesis
A. seeds
B. starches
C. fiber
Helppp pls
Answers
Answer:
B, starches
Explanation:
I’m not positive, but I think I remember this from 6th grade :)
Answer:starch
Explanation combines the glucose molecules a larger molecule , which is starch
In a particular organism, scientists notice that cells are dying at a higher rate than normal. Upon further examination, they find that these cells die after they became filled with large lipids and protein of many different sizes. what do you predict is the reason for the cells death apex
Answers
Answer: lysosomes are malfunctioning so molecules targeted for destruction are not being removed.
Assume that a student is given two models of bacteria, with one model consisting of big bacteria and the other consisting of small bacteria. How can the student demonstrate the theory of endosymbiosis using the models?
Answers
Answer:
37
Explanation: it is right
Which of the following is a reason why breast milk is more nutritionally beneficial than cow's milk? Check all that apply. Check All That Apply The excess protein in cow's milk makes it more difficuit for the infant to digest. Cow's milk can increase the likelihood of diaper rash. Human breast milk helps clear the meconlum out of the newborn's intestines. Human breast milk helps populate the newborn's intestines with bacteria. Human breast milk supplies antibodies to the newborn to help defend against infection.
Answers
The following are reasons why breast milk is more nutritionally beneficial than cow's milk:
The excess protein in cow's milk makes it more difficult for the infant to digest.Human breast milk helps clear the meconium out of the newborn's intestines.Human breast milk helps populate the newborn's intestines with bacteria.Human breast milk supplies antibodies to the newborn to help defend against infection.Cow's milk is not recommended for infants younger than 12 months old because it is difficult for them to digest and can increase the risk of allergic reactions, intestinal bleeding, and iron-deficiency anemia. Breast milk, on the other hand, is highly nutritious and contains all the necessary nutrients in the right proportions for the infant's growth and development. It also contains immune factors that protect the baby from infections and diseases.
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Which phrase best defines erosion? cementing bits of rock together chemically breaking rocks apart moving bits of rock from place to place physically breaking rocks apart help pls
Answers
Answer:
chemically breaking rocks apart
Explanation:
First, lets talk about erosion:
Erosion is the process of eroding or being eroded by wind, water, or other natural agents.
Erosion can be either a fast process, or one that takes hundreds of years.
Water can fall in cracks of rock, later then freeze and expand causing to break rocks more.
Answer: Chemically breaking rocks apart.
Explanation:
Because erosion usually happens because of the flow of water. So the water has sand particles that hit the rock which breaks the rock.
Which of the following does not promote CA+ deposition in bone vitamin D calcitonin parathyroid hormone gonadal hormones Which of the following groups is at greatest risk for developing osteoporosis? small-boned, black, non-Hispanic women large-boned, black, non-Hispanic women large-boned, white, non-Hispanic women small-boned, white, non-Hispanic women Question 3 1 pts Without hormone replacement therapy, women can lose up to of their bone mass within five to seven years after menopause. 10% 20% 30% 40% Which of the following is not part of a bone remodeling unit in cortical bone? Howship lacunae cutting cones filopodia canaliculi Question 5 1 pts Which of the following groups appears to have the largest increases in bone strength after participation in structured programs of bone-loading exercise? prepubertal children premenopausal women men aged 40 to 60 years postmenopausal women In the United States, the estimated lifetime risk for women of a hip, spine, or forearm fracture attributed to osteoporosis is 13% to 22% 40% to 50% equal to her risk of breast cancer 75% Question 7 1 pts The rate of bone mass loss is about 0.5%/ year in men after age 50 1% to 2%/ year for men after age 35 1% to 2%/ year for women after age 50 0.5%/ year for women after age 35 During bone resorption, which type of cell is most active? osteoblasts osteoclasts osteocytes oocytes Question 9 Sclerostin levels depend on mechanical bone loading. Which of the following is true about sclerostin? It activates osteoblasts. It is increased by weight-bearing activities. It is decreased by weight-bearing activities. a and b Bone involution occurs when osteoclast activity exceeds osteoblast activity osteoblast activity exceeds osteoclast activity osteoclast activity and osteoblast activity are balanced bone renewal exceeds bone loss Question 11 1 pts Osteoblasts release which cytokine to stimulate osteoclastogenesis? A RANK RANK-L factor kappa-B osteoclasts A woman completes a DXA scan and is told that her bone mineral density (BMD) is 1.5 standard deviations above the mean BMD for young adult women. According to World Health Organization criteria, this woman has osteoporosis osteopenia normal BMD the female athlete triad Question 13 1 pts Which of the following hormones stimulates the resorption of calciušn from bone? calcitonin insulin parathyroid hormone aldosterone
Answers
The option that does not promote CA+ deposition in bone is Calcitonin
The group that is at greatest risk for developing osteoporosis is Small-boned, white, non-Hispanic women.
How to explain the informationWithout hormone replacement therapy, women can lose up to 30% percentage of their bone mass within five to seven years after menopause.
The option that is not part of a bone remodeling unit in cortical bone is Filopodia.
The group that appears to have the largest increases in bone strength after participation in structured programs of bone-loading exercise is Prepubertal children
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what do you think of when you hear cytoplasm?
Answers
Answer:
yup I heard about it in science
Dark skin (a result of increased melanin production in equatorial peoples) is likely a response to ultraviolet (UV) radiation, because UV radiation can cause Group of answer choices skin cancer. hypothermia. rickets. hypoxia.
Answers
Answer:
skin cancer
Explanation:
because a human skin system is not evolved to handle the harsh conditions invoked by ultraviolet rays
In which trophic level do we find the producers?
Answers
Answer:
Level 1...Plants and algae make their own food and Plants and algae make their own food and are called producers.
Answer:
The base of the pyramid
Explanation:
An example of which is: grass
How many days can a human live without food or water
Answers
Answer:
8-21 days
Explanation:
Answer: An article in Archiv Fur Kriminologie states the body can survive for 8 to 21 days without food and water and up to two months if there's access to an adequate water intake. Modern-day hunger strikes have provided insight into starvation.
Dying from dehydration is generally not uncomfortable once the initial feelings of thirst subside. If you stop eating and drinking, death can occur as early as a few days, though for most people, approximately ten days is the norm. In rare instances, the process can take as long as several weeks.
A water fast is when a person does not eat and drinks nothing other than water. There is no set time that water fasting should last for, but medical advice generally suggests anywhere from 24 hours to 3 days as the maximum time to go without food.
Explanation:
That's about it.