Free-living nematodes are important for what?
A. helping clean the water we drink
B. killing harmful bacteria
C. decomposing dead matter in bodies of water
Answers
Answer:
Explanation:
C. Decomposing dead matter in bodies of water.
Free-living nematodes are important decomposers in aquatic ecosystems. They play a crucial role in the food web by breaking down dead matter and recycling nutrients. Their feeding activities help to release nutrients into the water that can be taken up by other organisms, such as algae and bacteria. This, in turn, provides a source of energy for higher trophic levels. Additionally, nematodes are also indicators of water quality and can be used as bioindicators of environmental stress. While nematodes may contribute to the cleaning of water in some ways, their primary ecological role is as decomposers.
Related Questions
A hypothesis for why narwhals have long tusks can be made using the concept of sexual selection. Which one of
the following predictions would come from such a hypothesis? (application level)
O In contests over females, the best-nourished male should always, or almost always, win.
O In contests over females, the male with the longest tusk should always, or almost always, win.
O In natural populations, female tusk length should decline over time.
O Young males that are given extra amounts of high-quality food should grow particularly long, strong tusks.
Answers
In contests over females, the male with the longest tusk should always, or almost always, win.
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The human skeletal system is an example of
how function depends on structure. Which
statement describes the relationship between the
structure and function of the human skeletal
system?
A. The skeletal system breaks down food into
nutrients that the body can use.
B. The skeletal system returns fluids to blood
vessels and helps get rid of bacteria and
viruses.
C. The skeletal system provides a frame to
support and protect the body and allows the
body to move.
D. The skeletal system receives information
about the body and the environment and
responds to that information.
Thanks
Answers
Answer:
The skeletal system provides a frame to
support and protect the body and allows the
body to move.
Rocks in continental crust are as old as ____ years.
A. 200 million
B. 44 million
C. 4.4 billion
Answers
Answer:
4.4 billion
Explanation:
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Match the following organisms with their correct asexual reproductive structure/process.
Column I Column II
p Yeast 1. Conidia
q Planaria 2. Budding
r Penicillium 3. Binary fission
s Paramecium 4. Fragmentation
Answers
the correct answer is option B.Here are the correct matches of the given organisms with their asexual reproductive structure/process.
Column I Column IIp Yeast 2. Buddingq Planaria 4. Fragmentationr Penicillium 1. Conidia s Paramecium 3. Binary fission.Asexual reproduction is a type of reproduction that does not require the involvement of gametes or fertilization. A single organism produces a genetically similar offspring in asexual reproduction, which is a rapid process. Asexual reproduction, on the other hand, limits genetic variation and may result in the accumulation of deleterious mutations. There are several forms of asexual reproduction in living organisms.Below are the correct matches of the given organisms with their asexual reproductive structure/process:Column I Column IIp Yeast 2. Buddingq Planaria 4. Fragmentationr Penicillium 1. Conidias Paramecium 3. Binary fission. Therefore, the correct answer is option B.
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Define photophosphorylation?
Answers
The photophosphorylation is the synthesis of ATP from ADP and phosphate in the plants using the light energy absorbed during the photosynthesis process.
The primate emphasis on the visual sense is reflected in Group of answer choices the reduction in the size of structures related to the sense of smell. a more forward facing position of the eyes relative to most other mammals. the presence of color vision in most species. all of the above
Answers
The primate emphasis on the visual sense is reflected in D)all of the above.
i)The presence of color vision in most species.
Good vision is a hallmark of the primate order. Maximum primates typically have shade vison which may be dichromatic and others trichromatic. they've binocular imaginative and prescient and ahead-dealing with closely spaced eyes that permit overlap between the visual view of every eye. This gives them a stereoscopic imaginative and prescient and a good feel of depth notion.
ii)A more forward-facing position of the eyes relative to other mammals.
Any photograph formed inside the retina of the attention is despatched as electric signals via the optic nerve to the visible centers in each of the hemispheres of the mind, which in the end technique the image and allow us to peer.
iii )The reduction of the size of structures related to the sense of smell.
Even though the imaginative and prescient of the primates is enormously advanced, they have shortened muzzles and hence a discounted experience of scent.
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A scientist claimed that an E. coli strain had either a mutated trpR gene or a mutated operator. Which of the following observations most likely supports the claim?
A.Transcription from the operon occurred only in the presence of abundant tryptophan.
B.The strain of E. coli required more tryptophan for its metabolic processes than does a strain of E. coli with typical tryptophan regulatory con
C.Enzymes required for the synthesis of tryptophan were continuously produced whether tryptophan was absent or present in large quantities.
D.The cells died when they were grown in nutrient medium that lacked tryptophan.
Answers
The observation that supports the claim is A.Transcription from the operon occurred only in the presence of abundant tryptophan.
In absence of tryptophan, the trpR gene generates a repressor protein that binds to an operator region of the trp operon and stops the transcription of the genes responsible for tryptophan synthesis. The expression of the tryptophan synthesis-related genes may be activated even in the presence of tryptophan if the trpR gene is altered, making the repressor unable to bind to the operator.
Alternately, if operator is altered, repressor protein could not recognise it, enabling gene transcription necessary for tryptophan synthesis to occur even when tryptophan is present. Option A shows transcription from operon only happened when there was a lot of tryptophan and supports scientist's conclusion. This discovery is consistent with a trpR gene or operator mutation, which would eliminate the repressor protein's ability to control the operon.
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Plants serve many roles in an ecosystem.
Plants serve as a food source for other organisms.
Plants produce oxygen through the process of photosynthesis.
Plants can provide habitats for animals.
Plants can make and preserve soil.
Plants can also be transformed into useful products for people.
Which of the following is an example of a product that can be made from plants?
A.
paper
B.
resins
C.
medicine
D.
all of these
Answers
Paper from softwood/hardwood trees
Resins-from tree barks
Medicinal-some trees have medicinal properties such as Witch Hazel
How many glycosidic linkages would be found in a polysaccharide composed of 311 monomers linked together?
Answers
Answer:
310
Explanation:
Erwin Chargaff's research determined the percentage of the nitrogen bases within a strand of DNA. His work determined thatthe concentration of adenine is twice the concentration of thymine and the concentration of cytosine is twice the concentration of guanine.the percent of adenine is equal to the percent of guanine and the percent of cytosine is equal to the percent of thymine.the percent of adenine is equal to the percent of thymine and the percent of cytosine is equal to the percent of guanine.the concentrations of adenine, thymine, guanine, and cytosine are all equal.
Answers
Erwin Chargaff's research determined the composition of the nitrogen bases within a strand of DNA. His work determined that DNA composition varies, but the amount of adenine is always the same as thymine and the amount of cytosine is always the same as guanine. Chargaff also found that the composition of DNA varied from one species to another.
We can conclude that the correct answer is:
Answer:the percent of adenine is equal to the percent of thymine and the percent of cytosine is equal to the percent of guanine.In your own words, please describe the figure below. What vegetation patterns seen in the real world does this help explain?
Answers
Patterned vegetation is a vegetation community that exhibits distinctive and repetitive patterns.
Patterned vegetation refers to the spatial arrangement and distribution of different plant species or vegetation types that form distinct patterns on the landscape.
These patterns can be observed at various scales, ranging from small patches to large-scale formations, and they often result from interactions between the environment, ecological processes, and plant species. The formation and maintenance of patterned vegetation are influenced by complex interactions between biotic and abiotic factors.
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Your question is incomplete, most probably the full question is this:
In your own words, please describe the figure below. What vegetation patterns seen in the real world does this help explain?
Stem Cells A stem cell is an u_____ Stem cells from human e cells. Stem cells from adult b m__________ can form cells including b M _____cells in plants can differentiate into any type of plant cell. and p. Stem cells may be able to help treat d In t cloning an embryo is produced with the same DNA as the patient. Stem cells from the embryo are not r as they have the same DNA and antigens as the patient. e cell that can be copied or change into other cell types. can differentiate into most different types of human Risks from stem cell treatment include the transfer of v people have e or r objections. Plant meristem stem cell can be used to produce clones of plants q cells. pathogens, and some and R species can be cloned to protect from e It is possible to clone large numbers of identical Crop plants with desirable features such as d resistance or high crop y
Answers
Stem Cells A stem cell is an undifferentiated cell that can be copied or changed into other cell types. Stem cells from human embryonic cells can differentiate into most different types of human cells. Stem cells from adult bone marrow can form cells including blood cells.
Stem cells in plants can differentiate into any type of plant cell. And plant meristem stem cell can be used to produce clones of plants.In cloning, an embryo is produced with the same DNA as the patient. Stem cells from the embryo are not rejected as they have the same DNA and antigens as the patient.Stem cells may be able to help treat diseases. Risks from stem cell treatment include the transfer of pathogens and some people have ethical or religious objections. Species can be cloned to protect from extinction.
It is possible to clone large numbers of identical crop plants with desirable features such as disease resistance or high crop yield.
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Can someone please help me? :(
Answers
Answer:
D or B
Explanation:
I don't know if the answer is D or B
3. Identify the type of variation in the following :
(Hint: Continuous/Discontinuous, Inherited/Environmental or combination)
I. Tree-colored moths are more likely to survive and reproduce than those of a different color.
II. There are only three species of elephants: the African bush elephant, the African forest elephant, and the Asian elephant.
III. There are around 200 species of monkeys and each of these has different skull structures.
Answers
Tree-colored moths are more likely to survive and reproduce than those of a different color is Discontinuous variation. There are around 200 species of monkeys and each of these has different skull structures is continuous variation
What is a Discontinuous variation?Distinct categories are created for the many differences in discontinuous variation.Individual differences within a species which are qualitative and are termed to as discontinuous variation (categoric).Example; There are only three species of elephants: the African bush elephant, the African forest elephant, and the Asian elephant is a Discontinuous variation.
What is a continuous variation?The many types of variation are dispersed along a continuum in continuous variation. Individual changes within a species that are quantitative are known as continuous variation (measurable)To know more about Discontinuous variation visit
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An animal that lives by eating other animals is called what
Answers
Answer:
carnivorous.
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Arrows have different meanings in different contexts in biology. Which phrase does the best job of describing the meaning of the arrows in this model? O a feedback loop Nest the flow of energy and nutrients the transformation of one thing to another O movement of an organism through space O the passage of time
Answers
Among the given options, the phrase that best describes the meaning of the arrows in this model is "The flow of energy and nutrients".
In biology, arrows are often used to represent the directional movement or transfer of energy and nutrients within biological systems. These arrows indicate the flow of energy from one organism to another, or the movement of nutrients through various trophic levels in food webs or metabolic pathways.
They depict the direction of energy transfer or the movement of molecules, emphasizing the interconnectedness and dynamic nature of biological processes. Therefore, "The flow of energy and nutrients" is the most appropriate phrase to describe the meaning of the arrows in this context.
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complete Question:
Arrows have different meanings in different contexts in biology. Which phrase does the best job of describing the meaning of the arrows in this model?
A feedback loopThe flow of energy and nutrientsThe transformation of one thing to anotherMovement of an organism through spaceThe passage of timewhy are the offspring of asexually reproducing organisms genetically identical to their parent?
Answers
Answer: Because thear is only one parent.
u.s. national marine fisheries service estimates that of known fish stocks are suffering from overfishing, as so many fish have been harvested there is not enough stock to replenish the species?
Answers
Overfishing is a serious issue facing many of the world's oceans. The U.S. National Marine Fisheries Service estimates that approximately 30% of known fish stocks are suffering from overfishing. This means that so many fish have been harvested that there is not enough stock to replenish the species.
Overfishing can have devastating effects on marine ecosystems, causing imbalances in the food chain and reducing biodiversity. To combat overfishing, many countries have implemented regulations on fishing practices. These regulations may include limits on the amount of fish that can be caught, restrictions on the size of fish that can be caught, and closed seasons during which fishing is not allowed. Additionally, some countries have implemented programs to rebuild depleted fish stocks through the use of hatcheries or other methods.
It is important that we take action to address overfishing and protect our oceans. By implementing sustainable fishing practices and protecting marine ecosystems, we can ensure that future generations will have access to healthy and abundant fish populations.
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After which event will ecological succession most likely happen? answer choices. a forest fire. a thunderstorm. a high tide. a lunar eclipse.
Answers
Ecological succession is most likely to happen after a forest fire. Option A is the correct answer.
Forest fires can cause significant disturbances to an ecosystem, clearing out vegetation and organic matter. This creates a blank canvas for new plant growth and colonization by other organisms. The absence of competition and the availability of resources in the post-fire environment provide opportunities for pioneer species to establish and initiate ecological succession.
These pioneer species gradually pave the way for the establishment of more complex and diverse communities over time, leading to ecological succession. Therefore, a forest fire is an event that often triggers the process of ecological succession.
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Which statement is NOT true about chlorophyll?
1. It makes leaves green
2.it turns into glucose during photosynthesis
3.it absorbs light from the sun
4.it is found in the chloroplasts
Answers
If a mammal did not obtain enough iodine in its diet, you might expect _________. A. a decreased ability to produce thyroid hormones B. a decrease in enzyme function C. the animal to have weak bones D. a decrease in muscle function
Answers
If a mammal did not obtain enough iodine in its diet, we might expect a decreased ability to produce thyroid hormones.
Hence option (a) is correct.
The creation of thyroid hormone requires the element iodine.
Iodine must be a component of your diet because the body cannot produce it.
There are several foods that contain iodine. You cannot produce enough thyroid hormone if your body is deficient in iodine.
Iodine deficiency can therefore result in intellectual problems in children and infants whose mothers were iodine deficient during pregnancy.
It can also cause hypothyroidism (see the hypothyroidism brochure), goitre, and thyroid enlargement.
Decreased iodine levels are not the only factor contributing to low thyroid function. Iodine deficiency, however, can result in various thyroid issues as well as a goitre, an abnormal enlargement of the thyroid gland. It may lead to mental impairments in youngsters.
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What causes global circulation?
1. the Earth's core cools down some areas more than others
2. parts of the world heat up differently
3. the water in the oceans acts as an insulator
4. the sun stops emitting radiation at night
Answers
Answer:
parts of the world heat up differently
Explanation:
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nucleic acid used in a 9th grade level sentence
don’t send links
Answers
Most exact matching problems arise when handeling nucleic acid sequences.
Certain tags can enter the nucleic acid database and identify the trapped gene.
The structure of nucleic acid junctions plays a central role in their biological function.
which muscles are most likely to be exposed to a lot of stress when skating?
Answers
When it comes to skating, Quadriceps, Hamstrings, gluteal muscles, calf muscles, hip adductor muscles and core muscles are most likely to be exposed to a lot of stress.
When it comes to skating, certain muscles bear significant stress due to the specific movements and demands of the sport. The following muscles are particularly prone to high levels of stress during skating:
Quadriceps: The quadriceps muscles, located in the front of the thigh, are heavily engaged during skating. These muscles play a crucial role in extending the knee joint and generating power during the push-off phase of each stride. As skaters repeatedly extend their legs to propel themselves forward, the quadriceps endure considerable stress.
Hamstrings: Situated at the back of the thigh, the hamstrings also experience stress while skating. While the quadriceps provide propulsion, the hamstrings assist in controlling the leg's forward swing and contribute to balance and stability. During deceleration, they work eccentrically to control knee flexion.
Glutes: The gluteal muscles, comprising the gluteus maximus, gluteus medius, and gluteus minimus, are vital for generating power and stability in skating. They facilitate hip extension, which is crucial for propelling the body forward. Additionally, the glutes aid in maintaining balance and controlling lateral movements during skating maneuvers.
Calves: The calf muscles, including the gastrocnemius and soleus, undergo substantial stress during skating. They contribute to ankle plantarflexion, enabling the push-off phase. As skaters forcefully contract their calves during the push-off, these muscles generate power to propel the body forward.
Hip Adductors: The hip adductor muscles, located on the inner thigh, are engaged in stabilizing the leg during each stride. These muscles work to bring the leg back toward the midline of the body, providing stability and balance during lateral movements.
Core Muscles: Skating heavily relies on the strength of the core muscles, including the abdominals, obliques, and lower back muscles. These muscles provide stability to the torso and facilitate the transfer of power from the lower body to the upper body during skating actions such as turns and jumps.
It is essential for skaters to recognize that different skating disciplines may stress these muscle groups differently. For instance, figure skaters may emphasize more intricate movements and jumps, while ice hockey players might focus on quick turns and sudden changes in direction. Conditioning exercises, proper warm-up routines, and adequate rest and recovery are crucial for minimizing the risk of overuse injuries and maintaining the strength and endurance of these muscles.
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Answer the question for the question down below:
Answers
Answer:
trace fossil
Explanation:
Answer:
I whould say mold fosil
Although Arroyo does not mention the term "watershed," it was discussed in the unit as being closely related to and impacted by drought and floods. Please discuss how the watershed relates to drought and heat. How might Arroyo have integrated the term watershed into her talk?
Answers
Answer:
Arroyo integrated the term “watershed“ by saying that Oxfam and Swiss Re with the Rockefeller foundation are helping farmers building hillside terraces to conserve water and they are also providing for insurance when the droughts do come.Water shed relates to drought and heat because it will suffer and there would be less water to fill surface water resources and less water to make its way through the earth and into groundwater reservoirs.
A geothermal power plant is like a regular power plant except that no fuel
is burned to heat 3. _____________ into 4.______________. The steam in a geothermal
power plant is heated by the Earth. Like other power plants, they use many of the same
components including 5. ____________________, 6. ____________________ and other
standard power operating equipment.
Answers
Answer: 3. Water 4 steam. 5. Turbine 6. Generator
Explanation:
During which process do plants use carbon dioxide?
Answers
Answer:
photosynthesisin this process plants use carbon dioxide
Answer: Photosynthesis.
Explanation: Plants are considered autotrophs, this means that they can convert inorganic compounds or substances into organic substances. This includes carbon dioxide. When a plant is conducting photosynthesis, they "steal" carbon dioxide (and water) from soil and air and transform that, along with sunlight, into sugar and oxygen. The plant proceeds to utilize the sugar and oxygen as energy.
Various batteries, different sizes of iron nails, and a large roll of copper wire. The goal is to make an electromagnet that will pick up the most paperclips. Which of these will not contribute to increasing the strength of the electromagnet? A) increasing the number of coils of wire B) decreasing the voltage of the battery C) increasing the voltage of the battery D) using an iron nail
Answers
To contribute to increasing the strength of the electromagnet we increase the number of coils of wire.
So option A is correct.
What is electromagnet?An electromagnet is described as a type of magnet in which the magnetic field is produced by an electric current which usually consist of wire wound into a coil.
If a current is passed through the wire, it creates a magnetic field which is concentrated in the hole in the center of the coil.
In order to make your electromagnet pick up more paper clips or bigger paper clips, the right thing to do is increasing the number of turns in the coil of wire which will increase the strength of the electromagnet.
The greater the number of turns, the higher the magnetism.
In conclusion, one of the disadvantages of electromagnets is that they heat up very fast, hence lose electrical energy faster.
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A scientific claim answers a question or offers a solution to a problem. Reflect on the Encounter the Phenomenon question and brainstorm potential answers. Use your observations from the Inquiry Activity to formulate your claim about the phenomenon
Answers
A scientific claim is developed by answering questions raised through suitable hypotheses that allow making predictions, which can be tested by experimental procedures.
What is a scientific claim?A scientific claim is a body of knowledge obtained by answering the equation formulated through the observation of the real world.
These observations are capable of raising plausible explanations or hypotheses that can be tested (confirmed or rejected) by using the scientific method.
An inquiry activity may be, for example, the observation of the movement of a cylinder in aqueous solution.
In conclusion, a scientific claim is developed by answering questions raised through suitable hypotheses that allow making predictions, which can be tested by experimental procedures.
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