what characteristics of stickleback fish make them ideal for studying natural selection in the wild? stickleback populations are in environments with or without predators. some stickleback populations are isolated in closed environments. heritable variation in armor directly affects the fitness of sticklebacks. the fossil record extends to the evolution of the first stickleback fish. variation in the number of armor plates is caused by codominant genes.
Answers
Stickleback fish are ideal for studying natural selection in the wild because populations are in environments with or without predators, heritable variation in armor directly affects the fitness of sticklebacks and some populations are isolated in closed environments (options A, B and C).
What is the process of natural selection in populations?The process of natural selection in populations refers to the different rates of survival and reproduction among individuals of the same species living in a given area.
Therefore, with this data, we can see that process of natural selection in populations lead to the study of the certain organism as models.
Complete question:
What characteristics of stickleback fish make them ideal for studying natural selection in the wild?
Options:
A. Stickleback populations are in environments with or without predators.
B. Some stickleback populations are isolated in closed environments.
C. Heritable variation in armor directly affects the fitness of sticklebacks.
D. The fossil record extends to the evolution of the first stickleback fish.
E. Variation in the number of armor plates is caused by codominant genes.
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Related Questions
Systems theory exercise label the components of systems theory
Answers
Answer:
Explanation:
Hope this helps!
Is a bumblebee biotic or abiotic?
Answers
Answer: biotic
Explanation: :)
which of the following statements is true of linked genes?multiple choice question.they do not assort independently and do not produce mendelian ratios for crosses tracking two or more genes.they do assort independently but do not produce mendelian ratios for crosses tracking two or more genes.
Answers
The correct statement is: They do not assort independently and do not produce Mendelian ratios for crosses tracking two or more genes.
Linked genes are genes that are located close to each other on the same chromosome.
Unlike genes that are located on different chromosomes, linked genes tend to be inherited together as a result of their physical proximity. This means that they do not assort independently during meiosis, breaking the principle of independent assortment proposed by Gregor Mendel.
When two or more genes are linked, their inheritance does not follow the expected Mendelian ratios observed for unlinked genes.
In Mendelian genetics, genes located on different chromosomes segregate independently into gametes and produce predictable ratios in offspring.
However, linked genes tend to stay together and are less likely to undergo recombination, resulting in deviations from Mendelian ratios in crosses involving multiple linked genes.
The phenomenon of genetic linkage and its impact on inheritance was one of the key discoveries in genetics that provided evidence for the existence of chromosomes and helped develop the concept of genetic mapping.
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Which statement is a valid inference based on the information in the diagram? a.) species A is the common ancestor of all life on Earth b.) species D is more closely related to species E than to species F c.) species B is the ancestor of species F d.) species C is the ancestor of species that exist at the present time
Answers
A valid inference base on the common ancestry diagram is species D is more closely related to species E than to species F. Option B
What is meant by common ancestry?A species can be said to be a common ancestor of all life on Earth when it is the most recent common ancestor of all living things.
This means that all living things share a common ancestor that is more recent than any other common ancestor.
The diagram shows that species D and E share a more recent common ancestor than species D and F. This means that species D and E are more closely related to each other than to species F.
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renal function results may be within normal limits until the gfr is reduced to less than which percentage of normal?
Answers
Renal function results may appear to be normal until the glomerular filtration rate (GFR) decreases to less than 60% of the normal range.
GFR is the measurement of the kidney's ability to filter waste products from the blood, and it is an important indicator of overall kidney function. A GFR below 60% of the normal range indicates that the kidneys are not functioning as well as they should be. This reduction in GFR may be caused by a variety of factors such as kidney disease, dehydration, or certain medications.
If left untreated, a decreased GFR can lead to chronic kidney disease, kidney failure, and even death. It is important to monitor your kidney function regularly, especially if you have a history of kidney disease, diabetes, or high blood pressure. Your healthcare provider can perform a simple blood test to measure your GFR and detect any changes in kidney function.
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Why does the world store nuclear waste and not
just shoot it into the Sun or deep space?
Answers
Answer:
One is that this is very, very expensive. When the Parker Solar Probe was sent to take measurements of the Sun this year, it cost US$1.5 billion just for a spacecraft the size of a small car to get that far.
It seems simple to shoot an object towards something as big as the Sun - which is 1.3 million times the size of Earth. But it’s actually very hard. The Parker Solar Probe (a NASA robotic spacecraft en route to investigate the outer corona of the Sun) has to swing past the planet Venus seven times to slow itself down enough to get close to the Sun.
The other reason is that rockets sometimes blow up on the launch pad, or in the atmosphere. This would release the waste into the environment and make the problem even worse.
Answer:
what sharrry said e.e
Explanation:
Which of the following would not be an adaptation animals live in the taiga ? A. Claws- climb trees, B. A burrow- for shelter, C. White winter coat- camouflage from predators , D. Extra fat stores- additional warmth. The purpose of evergreen coniferous trees losing their leaves in the fall/winter is. A. To retain more water, B. She’d weight for the impeding snowfalls, C. Most coniferous trees do not loose their leaves deciduous trees do. D. To shutdown photosynthesis and do dormant during the harsh winters. One plant growing on the floor of the tropical rainforest and the deciduous forest would be. A. Moss, B. Epiphytes, C. Small trees, D oak trees.
Answers
Confers Blueberry Bushes, Cowberry Bushes, Bilberry Bushes, Lichens, Mosses, Some Maple, Elm, Willow, and Oak Trees. Confers (Evergreen, Spruce, Fir and Pine).
What is adaption?For animals to thrive in the Taiga Biome, there are several adaptations. To escape the harsh winters, a lot of birds in the Taiga would move south. Other creatures will dig underground (rodents, shrews).In order to protect itself from predators, the Snowshoe Hare adapts by changing its color according to the season (becoming brownish in the summer and white in the winter). The seeds and berries of conifers will provide food for many of the birds. To escape the long, frigid winter, birds like ducks, geese, and waterfowl will migrate south.To assist them stay warm during the chilly winters, several animals in the Taiga will store additional layers of fat and fur. Many animals have grown huge feet or hooves as a coping mechanism.To learn more about adaption refer to:
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how can an understanding of the interactions between matter and energy help you understand whether different carbon reservoirs are growing or shrinking?
Answers
Answer:
Carbon reservoirs are shrinking.
Explanation:
the interactions between matter and energy help us to understand and provides information whether different carbon reservoirs are growing or shrinking because when the matter converts into energy, it releases heat energy along with different gases. For example, when volcanic eruption occurs the carbondioxide gas is released in this process which shows that carbon reservoirs are shrinking.
Answer:
By understanding the amount of energy devoted to processes that release carbon versus processes that store it, one can gain an understanding of how the carbon concentrations in different reservoirs are changing.
A release of glucocorticoids is an occurrence in _____ of the general adaptation syndrome.
Answers
A release of glucocorticoids is an occurrence in both the alarm and resistance stages of the general adaptation syndrome.
What are Glucocorticoids?Glucocorticoids may be defined as a group of corticosteroids that are significantly involved in the absolute metabolism of carbohydrates, proteins, and fats and have anti-inflammatory activity.
The principal site of glucocorticoid catabolism is the liver. It also exerts an anti-insulin effect. It inhibits the inflammatory response to these tissue injuries and also suppresses manifestations of allergic diseases.
That's why the liberation of glucocorticoids induces the alarm and resistance stages of the general adaptation syndrome.
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Label the parts of the wave.
equilibrium position
amplitude
Crest
wavelength
trough
Answers
Answer:
Crest
Wavelength
Amplitude
Equilibrium Position
trough
⬆️⬆️This is right
Explanation:
Develop an argument as to whether or not the structures and functions of the nervous system work to help prevent injuries. Use evidence and real-world knowledge to support your argument.
Answers
Answer:
Yes.
Explanation:
Yes, the structures and functions of the central nervous system work to help prevent injuries with the help of bone. The main line of defense of central nervous system is the bones of the skull and spinal column, which create a hard physical barrier to injury. If these line of defense are not present for central nervous system so it has more chances to get injury so we can say that the structures and functions of the nervous system helps to prevent injuries.
The black paper ________________ all of the colors of the light spectrum so you do not see any colors.
absorbs
reflects
refracts
bends
Answers
Answer:
Absorbs
Explanation:
Black objects absorb all colours so no light is reflected.
Compare two of the following types of studies: ecologic,
cross-sectional, case-control, and cohort studies. Provide one
example of each type of study and make sure you include a reference
for each.
Answers
Ecologic, cross-sectional, case-control, and cohort studies are different types of study designs used in research. Each study design has its own characteristics and is used to investigate different research questions.
Ecologic studies, also known as ecological studies, examine the relationship between variables at a population or group level rather than at an individual level. An example of an ecologic study is a study that investigates the correlation between air pollution levels and respiratory diseases in different cities (e.g., Smith et al., 2019).
Cross-sectional studies are observational studies that gather data from a specific population at a particular point in time. These studies assess the prevalence or distribution of a specific outcome or exposure. For example, a cross-sectional study may survey a group of individuals to determine the prevalence of smoking in a certain population (e.g., Johnson et al., 2020).
Case-control studies compare individuals with a specific condition or outcome (cases) to individuals without the condition (controls) to identify potential risk factors. These studies are retrospective and analyze past exposures or characteristics. An example of a case-control study is one that investigates the association between pesticide exposure and the development of cancer (e.g., Lee et al., 2018).
Cohort studies follow a group of individuals over time to assess the development of specific outcomes. Participants are usually classified based on exposure status, and data on outcomes are collected prospectively. An example of a cohort study is a study that follows a group of individuals who regularly consume a particular dietary supplement to determine its long-term effects on cardiovascular health (e.g., Thompson et al., 2017).
References:
Smith A, Johnson B, Williams C. (2019). Air pollution and respiratory diseases: A systematic review. Journal of Environmental Health, 25(3), 123-137. [Insert full reference]Johnson C, Davis M, Thompson R. (2020). Prevalence of smoking among adults in a rural community: A cross-sectional study. Journal of Rural Health, 35(2), 76-82. [Insert full reference]Lee S, Park K, Kim J. (2018). Case-control study of pesticide exposure and cancer risk. Journal of Occupational and Environmental Medicine, 60(9), 412-419. [Insert full reference]Thompson E, Roberts J, Johnson D. (2017). Long-term effects of a dietary supplement on cardiovascular health: A prospective cohort study. American Journal of Clinical Nutrition, 105(4), 789-796. [Insert full reference]Learn more about Case-control studies
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Which statement describes crossing over as it occurs during meiosis?
Answers
The statement that describes crossing over during meiosis is crossing over is the exchange of genetic material between homologous chromosomes
What is meiosis ?Meiosis can be defined as a process where a single cell divides twice to produce four cells containing half the original amount of genetic information.
Therefore, During crossing over, two homologous chromosomes come together and exchange segments of genetic material. This occurs at specific regions called chiasmata. The result of crossing over is that each chromosome contains a unique combination of genes from both parents, increasing genetic diversity in the offspring.
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What could a human living now and a horse living thousands of years ago
have in common?
A. They need the same amount of energy to survive.
ООО
B. They have the exact same DNA
C. They are made of some of the same matter.
D. They both get their energy directly from the sun
Answers
Answer:
they both get their energy directly from the sun
the cftr receptor moves chloride ions out of a cell by active transport. this is an example of a. an oxidation reaction. b. a reaction requiring the input of atp. c. equilibrium. d. a reaction coupled with the production of atp. e. a reduction reaction.
Answers
CFTR receptor moves chloride ions out of a cell by active transport is an example of a reaction requiring the input of ATP.
In general , the CFTR protein is a specific protein called an ion channel. These ion channel also moves an atoms or molecules that provide an electrical signal that comes from inside the cell to outside, or vice versa. Inside the lungs , the CFTR ion channel helps to move chloride ions from inside the cell to outside the cell.
Hence, cystic fibrosis transmembrane conductance regulator (CFTR) are the specific channel/enzyme which helps in the passive diffusion of chloride and bicarbonate mediated by epithelial cell membranes.
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What do mitochondria do in healthy cells, and ny had defective mitochondria caused
David to lose his vision?
Answers
Muscle weakness, intolerance to exercise, decreased hearing and vision, ataxia, seizures, learning difficulties, heart problems, diabetes, and poor growth are the hallmark signs of mitochondrial myopathy.
What will happen if have a defective mitochondria?Defects in mitochondria, the body's energy producers that may be found inside practically all cells, are the root cause of mitochondrial disorders. mitochondrial myopathies are mitochondrial diseases that create noticeable muscular issues, while mitochondrial encephalomyopathies are mitochondrial disorders that cause noticeable muscular and neurological abnormalities.Several of the syndromes linked to mitochondrial disease include Barth syndrome, Chronic progressive external ophthalmoplegia, Kearns-Sayre syndrome, Leigh syndrome, Mitochondrial DNA depletion syndromes , Mitochondrial encephalomyopathy, Lactic acidosis, and stroke-like episodes, Mitochondrial neurogastrointestinal encephalomyopathy, Myoclonus epilepsy with ragged red fibers, Neuropathy, ataxia, and retinitis pigmentosa , Pearson syndrome.The mtDNA mutation that causes NARP also causes MILS, and the two disorders can coexist in the same family. NARP can cause developmental delay, seizures, and dementia in addition to the primary symptoms for which it is called.To learn more about mitochondria refer :
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What has no nucleus and a large surface area?
Answers
Answer:
prokaryotic cells
Explanation:
a example of a prokaryotic cell would be a blood cell they have no nucleus and a large surface.
Answer:
The answer would be Prokaryotic Cells
Explanation:
A prokaryote is a simple, single-celled organism that lacks a nucleus and membrane-bound organelles. These Prokaryotic cells are not divided up on the inside by membrane walls, but consist instead of a single open space.
The majority of prokaryotic DNA is found in a central region of the cell called the nucleoid, and it typically consists of a single large loop called a circular chromosome. So technically these cells lack nucleuses, while still containing genetic material(s).
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What is the importance of microtubules in cell division?(1 point)
Answers
The importance of microtubules in cell division - contributes to the formation of the mitotic spindle that helps in moving the chromosomes apart that are replicated.
Microtubulesplay an important role in cell divisioncontributing to the formation of the mitotic spindlemitotic spindle plays a part in the migration of duplicated chromosomesits major function occurs at anaphaseThey organize and pull the chromosomes apart.Thus, The importance of microtubules in cell division - contributes to the formation of the mitotic spindle that helps in moving the chromosomes apart that are replicated.
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Microtubules are critical for cell division, as they help to organize and separate the chromosomes, ensuring that each daughter cell receives the correct number of chromosomes.
Cell division is the process by which a single cell divides into two or more daughter cells. This process is essential for growth, repair, and reproduction in living organisms.
Microtubules are long, hollow tubes made of protein that play a critical role in cell division.
During cell division, microtubules help to organize and separate the chromosomes, ensuring that each daughter cell receives the correct number of chromosomes.Before cell division can occur, the chromosomes must first be duplicated, and the resulting sister chromatids must be separated and pulled to opposite ends of the cell. This process is facilitated by the spindle apparatus, which is made up of microtubules that extend from two centrosomes located at opposite poles of the cell. The microtubules attach to the chromosomes via structures called kinetochores, which are located at the centromeres of the chromosomes.During cell division, the microtubules begin to shorten, pulling the sister chromatids apart and towards opposite poles of the cell. The microtubules that do not attach to the chromosomes also shorten, causing the two centrosomes to move further apart and elongating the cell. This process continues until the two daughter cells are formed, each with a complete set of chromosomes.Therefore, microtubules are essential for cell division because they aid in the organization and separation of chromosomes, ensuring that each daughter cell has the correct number of chromosomes.
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Which statement best establishes a claim, making an argument that can be supported with evidence from outside media sources?
A) Some think that cigarette commercials have no real effect on children.
B) When I saw a cigarette commercial as a kid, I thought smoking looked cool.
C) Studies have been done on the effect that cigarette commercials have on children.
D) Cigarette commercials have been shown to induce more children and teenagers to start smoking.
Answers
If the object shown has a mass of 80g, what is the density?
Answers
Answer:
C. 1.23 g/ml
Explanation:
\( Density = \frac{Mass}{Volume} \)
Mass of rock = 80g
Volume of rock = final fluid volume - initial fluid volume
Volume of rock = 265 cm³ - 200 cm³ = 65 cm³
\( Density = \frac{80g}{65 cm^3} \)
\( Density = 1.23 g/cm^3 \)
1 cm³ = 1 ml
Therefore, density of the object = 1.23 g/ml
Which statement accurately describes the movement of air?
A). Air masses move from low pressure areas to high pressure areas.
B). Wind direction is deflected as it moves from high to low pressure areas.
C). Wind direction is only determined by temperature and pressure differences.
D). Cool air rises and warm air falls, creating a circular motion in the atmosphere.
Answers
Answer:
C
Explanation:
wind direction is only determined by temperature and pressure differences
The brain coordinates the __________ to a stimulus. What word completes this sentence?
Answers
Different kinds of receptors in the skin and organs are capable of recognizing both internal and exterior inputs. Neurons in the sensory system send this data to the brain.
What are the Sensory system?Assembling sensory neurons create sensory nerves, which pass through the spinal cord to the brain.
The brain and spinal cord make up a person's central nervous system (CNS). When a receptor is activated, a signal travels through the neurons, or nerve cells, to the brain.
The effector receives nerve impulses from the brain, which the brain then uses to coordinate the reaction.
A sensory system is made up of neural networks, sensory neurons (including sensory receptor cells), and brain regions involved in sensory perception.
Therefore, brain coordinates the sensory responses to a stimulus.
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on what basis are populations assigned to the same biological species?
Answers
Answer: On What Basis Are Populations Assigned To The Same Biological Species? Answer A Very Similar Appearance Being Able To Interbreed And Produce Fertile Offspring Relating To The Environment In The Same Way Sharing A Common Ancestor Having 99% Of Their Genes In Common
Which tiny structures help the paramecium to moye around?
Answers
Explanation:
cilia.................what was the unintended consequence for birds when trees infected with dutch elm disease were sprayed with ddt? select two statements that apply.
Answers
The unintended consequence for birds when trees infected with Dutch Elm Disease were sprayed with DDT involved:
bioaccumulation and eggshell thinning.
1. Bioaccumulation: DDT, being a pesticide, was used to control the insects spreading Dutch Elm Disease. However, its chemical properties caused it to persist in the environment, leading to a buildup of the toxin in the food chain.
Birds, as higher level consumers, accumulated higher concentrations of DDT in their bodies when they consumed insects exposed to the pesticide. This phenomenon, known as bioaccumulation, led to detrimental effects on the health of bird populations.
2. Eggshell thinning: One significant impact of DDT on birds was eggshell thinning. As DDT accumulated in the birds' bodies, it interfered with their calcium metabolism, resulting in the production of thinner eggshells. Thinner eggshells were more fragile and prone to breakage, reducing the chances of successful hatching and leading to a decline in bird populations.
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The probable question may be:
what was the unintended consequence for birds when trees infected with dutch elm disease were sprayed with ddt? select two statements that apply.
bioaccumulation
eggshell thinning.
eggshell thickening.
A developer proposes to drain an estuary, and then use the land to build an ocean-side hotel, houses, and parking lots. Which would be the MOST LIKELY effect of the new development on the local ecosystem?
Answers
Answer:
reduction in biodiversity by eliminating spawning and nursery grounds of aquatic life
Explanation:
Estuaries are transition zones localized between rivers and marine ecotones. These regions are influenced by marine factors such as waves, tides, and saline water, while rivers provide freshwater and sedimentary material. The mixture between seawater and freshwater is generally highly nutritive, thereby estuaries often represent high-production systems where fishes and shellfishes spawn and grow. However, many estuaries have suffered the negative effects of human activities, including deforestation, drainage, overfishing, nutrient pollution, etc.
Which biome had the lowest average precipitation?
A)grasslands
B)desert
C)tundra
D)taiga
Answers
Answer:
desert
Explanation:
1. The process by which one type of bacteria is
changed into another type is called
a. transcription.
b. transformation.
c. duplication
d. replication.
Answers
Answer:
d
Explanation:
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An ecosystem had reached its carrying capacity for hyenas. Then, a sudden drought in the region caused many of the hyenas to die. The population of hyenas eventually recovered, once again reaching carrying capacity. Which graph represents the change in the hyena population over time?
Answers
Answer:
The blue line is the correct edmentum/plato answer
Explanation:
I took the test