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sukhopar [10]
3 years ago
14

Composed of a phosohlipid bilayer

Biology
1 answer:
Zigmanuir [339]3 years ago
5 0

The cell membrane is composed of a phospholipid bilayer.

The cell membrane is primarily composed of a mix of proteins and phospholipids

Phospholipids are a major component of cell membranes.  They a head and a tail. The head is hydrophilic  (attracted to water) and the tail is hydrophobic (repelled by water).

They form a bilayer in which their hydrophilic heads face the aqueous cytosol and extracellular fluid  while their hydrophobic tails face away from the cytosol  and extracellular fluid.

The lipid bilayer is semi - permeable


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Answer:

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Explanation:

The question is incomplete as it does not have the options which are:

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<em><u>The reproductive isolation is the factor which allows the species to evolve and form a new species, therefore, this factor is used to describe a species.</u></em>

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<em><u>In the given cases, the penguin species which shows different mating dances is considered to be reproductively isolated as the different dance rituals evolved as behaviour to prevent them from mating.</u></em>

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<em><u>Thus, the selected option is correct.</u></em>

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