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2 years ago

Which species in the food web would be subject to the greatest biomagnification of pesticides applied to the grasses

Biology

1 answer:

zaharov [31]2 years ago

4 0

Answer:

Explanation:

Biomagnification can be described as the accumulation of substances like toxins, pesticides etc in tolerant organisms. The biomagnification tends to increase as the trophic levels of a food chain increase. This is because these substances get more and more accumulated as they move up a food chain.

In the example of the food chain mentioned in this question, the highest trophic level is of hawks, so they will be subjected to the greatest biomagnification.

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Which of the following elements makes up the smallest percentage of the atmosphere?

Brrunno [24]

Answer: A

Explanation:

Oxygen makes up another 20 to 21 percent of our atmosphere. It's essential for life on Earth, and interestingly enough, it is poisonous when highly concentrated. Our concentration of 20 to 21 percent seems just right.

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3 years ago

Read 2 more answers

When glucose levels in the blood increase after eating a meal, the pancreas secretes insulin to lower blood glucose levels back

Vladimir79 [104]

Answer:

This hormonal control of blood glucose levels is an examples of negative feedback response.

Explanation:

The blood glucose concentration maintain their concentration through negative feedback mechanisms.Alpha and beta cell present in pancreas. Alpha and beta cell produced insulin and glucagon which act as a antagonistic hormones and control blood glucose level.

Insulin is secreted by beta cell.Beta cell secreted insulin when glucose level increased in the blood.Insulin helps to stimulate liver to absorb glucose.Liver convert glucose to glycogen and adipose cells convert the glucose to the fat.In response, glucose concentration decreases in the blood, and insulin secretion discontinues (through negative feedback from declining levels of glucose)

Glucagon is secreted by alpha cells. when the concentration of blood glucose level drops then alpha cells secrete glucagon into the blood.Glucagon stimulates the liver for release of glucose. When blood glucose levels return to normal then glucagon secretion stopped.Its a negative feedback response.

4 0

3 years ago

How are the protists with flagella similar to the protists with cilia?

PilotLPTM [1.2K]

Flagella and cilia are both used for movement

6 0

3 years ago

What are the various characters of living beings

Doss [256]

Answer:

All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these eight characteristics serve to define life.

Explanation:

What are the characteristics of living beings?

Although nonliving things may show some of these characteristic traits, only living things show all of them.

Organization. Living things are highly organized, meaning they contain specialized, coordinated parts. ...

Metabolism. ...

Homeostasis. ...

Growth. ...

Reproduction. ...

Response. ...

Evolution.

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3 years ago

Bacteria cells are classified as prokaryotic while fish cells are classified as eukaryotic. Which of the following best describe

KiRa [710]

The correct answer is B. Prokaryotes do not have a nucleus, while eukaryotes do.

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2 years ago