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3 years ago

Which theory of the spread of human beings is supported most by modern

Biology

1 answer:

Kamila [148]3 years ago

6 0

Answer:

multi-regional theory

Explanation:

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In general, locomotion on land will require more energy than locomotion in water. By integrating what you learned about animal f

denis-greek [22]

Answer:

Land animals require more energy since they have to overcome greater inertia during locomotion. Land mammals have adopted many evolutionary mechanisms to support high energy demand.

Heart is four chambered instead of the usual two in aquatic animals like fishes. More number of divisions in heart increases the efficiency of blood circulation process which in turn increases the oxygen delivery rate to cells for producing more energy.

Land mammals also have developed lungs which increase the efficiency of gas exchange process which increases the output of respiration process.

In addition, land mammals also have a strong and developed musculoskeletal system which helps in locomotion.

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2 years ago

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PLEASE HELP ILL MARK BRAINLIEST!!!

mestny [16]

Answer:

I think the answer is D.

Explanation:

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3 years ago

A strand of mRNA has the bases adenine-cytosine-uracil. Which amino acid

ehidna [41]

Answer:

ACU - Thr

Explanation:

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2 years ago

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Help Asap! 20 Points!

kompoz [17]

I think its b.

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3 years ago

Tobacco mosaic virus has RNA rather than DNA as its genetic material. In a hypothetical situation where RNA from a tobacco mosai

jolli1 [7]

Answer:

The correct answer is A. Tobacco mosaic virus

Explanation:

Virus can have DNA and RNA as its genetic material. Tobacco mosaic virus has RNA as its genetic material. Protein is not a genetic material because it is a product coded by genetic material.

So a hybrid can be made only when the genetic material of two different organisms is mixed not two different biomolecules. Therefore when RNA from the tobacco mosaic virus is mixed with the protein from a DNA virus the result would be a tobacco mosaic virus only.

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3 years ago