BIOLOGY HIGH SCHOOL

Which of the following scenarios is representative of mutualism?a.
Barnacles living on whales
b.
Bees pollinating flowers
c.
Birds feeding on insects stirred up by grazing animals
d.
Mosses living on tree trunks

Answers

Answer 1
Answer: I think the correct answer from the choices listed above is option A. Barnacles living on whales is a scenario that represents mutualism. This is because both of the organisms benefit from their existence. Hope this answers the question. Have a nice day.

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The pancreas plays a critical role in __________.a. the absorption of nutrients
b. the digestion of vitamins
c. the elimination of enzymes
d. the breakdown of carbohydrates

Answers

The pancreas plays a critical role in the break down of carbohydrates. The pancreas is an organ located in the abdomen. it plays an essential role in converting the food we eat into fuel for the body's cells. The pancreas has two main functions: exocrine function that helps in digestion and an endocrine function that regulates blood sugar. Enzymes, or digestive juices, are secreted by the pancreas into small intestine. The pancreas also produces also produces the hormone insulin and secretes it into the bloodstream, where it regulates the body's glucose or sugar level. 

The pancreas plays a critical role in the breakdown of carbohydrates. Therefore, option (D) is correct.

Carbohydratebreakdown requires the pancreas. Behind the stomach is a crucial organ. It produces and secretes digestive enzymes, including amylase, which breaks down carbs into sugars. Carbohydrate breakdown is vital for nutrition intake and energy production.

The pancreas releases amylase into the small intestine after eating carbs. Amylase hydrolyzes complex carbohydrates like starches into glucose. Simple sugars are easily absorbed into the bloodstream and delivered to cells for energy production.

Carbohydrate malabsorption, malnutrition, weight loss, and blood sugar abnormalities can result from pancreatic amylase malfunction. Therefore, option (D) is correct..

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Scientists consider metaphaseanaphaseprophaseS phaseinterphase the "resting" phase of the cell cycle because they can't see a visible change during this phase.

Answers

The answer is Interphase

hope this helps

Squirrels and chipmunks compete for the same food source. What is most likely to happen to the degree of competition between these two species if their food became scarce?

Answers

The right answer is "increase". On the off chance that there's less food for them to eat,, they are going for a battle for it more on the grounds that both will need the little measures of nourishment that they scarcely get. The opposition increments.
The degree of competition between these two species is going to increase if their food becomes scarce. Given that both squirrels and chipmunks eat the same food, if there are smaller amounts of it, obviously both species are going to fight for it or else they will die. It is the survival of the fittest - those who can fight for their food and lives will survive, whereas the others will perish.

During what phase of meiosis is the DNA replicated?

Answers

The DNA is replicated during the S phase.

3. Define "limiting factors" and provide threeexamples.

Answers

Limiting factors is factors in an environment or ecosystem that limit the populations of organisms that can be competition for resources, predators, disease, natural events such as floods, etc

Over many generations man has chosen certain desirable characteristics in dogs by allowing dogs possessing those characteristics to reproduce. In this way, 150 breeds of dogs, same species, have descended from wolves. This process is referred to asA. convergent evolution
B. artificial selection
C. inheritance of acquired traits
D. natural selection

Answers

Artificial Selection

Explanation:

  • Artificial selection is also called as Selective breeding where humans identify desirable traits or characteristics in animals and plants, and the action taken to promote those characteristics or traits in future generation.
  • Example of Selective breeding or Artificial Selection is Dog Breeding.
  • Artifical selection carried out in Animals and Plants have many side effects such as diseases, health disorders and obesity. It may also cause the reduction in size of the brain.
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