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Lisa [10]
3 years ago
15

What has a biconcave shape to increase its surface area​

Biology
1 answer:
jeka943 years ago
3 0

Explanation:

The human erythrocyte adopts a distinctive biconcave disc form in vivo. ... It has been suggested that this shape maximises the surface area to volume ratio and thus expedites diffusion.

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A pond contains many different types of organisms. The table below lists some of these organisms and their methods of reproducti
ss7ja [257]

Answer:

Option A, Pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction

Explanation:

Genetics variation allows as organism to evolve in a way to be able to cope up with the existing or changing environmental condition. Now, a Pantala flavescens undergoes sexual reproduction, thus only this creature has the ability among all the given organism to evolve genetically and be able to survive in this environment.  All the remaining organisms reproduce asexually and hence there is no variation with in them and hence it would be difficult for these organisms to cope up with changing environment.

Hence, option A is correct.

3 0
3 years ago
Propose an explanation why there might be a sudden appearance of a species in the fossil record.
stellarik [79]
D) Fossils could not be found in that layer of rock.
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mr_godi [17]
A scientist who studies plants is called a botanist.
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6. Which of the following is NOT a function of the liver? MULTIPLE CHOICE.
katrin [286]

Answer:D

Explanation

Liver is not involved in the product of blood clotting protein rather it is involved in the production of two hormones insulin and glucagon that play roles in regulating blood sugar.

5 0
3 years ago
Describe the drug that Dr. Jacobson used on JFK.
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It cannot be said with certainty that the Kennedys or, with a few exceptions, any other specific patient received amphetamine. It is known, however, that Dr, Jacobson uses unusually large amounts of amphetamine in his practice. The doctor's office reported that

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