It occurs when groups in a species become reproductively isolated and diverge. In allopathic specification, groups from an ancestral population evolve into separate species due to a period of geographical separation.

5 0

3 years ago

What does the figure above show? a)anticodons b)exons c)introns d)the genetic code

luda_lava [24]

(see attached picture)

Answer - D. (The genetic code)

The genetic code is the nucleotide base sequence on DNA (with which information is encoded within genetic material). The nucleotide base sequence<span> codes for a sequence of amino acids, which are in turn used by living cells as the basic building blocks of proteins.</span>

7 0

2 years ago

Which of these is a central purpose of steroids in mammals? Choose the correct answer. A)They form protective coatings. b)They s

denis23 [38]

Ans.

Steroids are defined as active organic bio-molecules, having four rings with a specific molecular configuration. Steroids play role in two major functions: as hormones or signaling molecules and as structural components of plasma membrane.

Examples of steroid hormones are estrogen, progesterone, and cortisol. Thus, the correct answer is 'option b). they serve as chemical messengers.'

5 0

3 years ago

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What are the roles of proteins embedded in phospholipid membranes?

Svetradugi [14.3K]

They have a range of important functions. Such functions include channeling or transporting molecules across the membrane.

3 0

3 years ago