Aprimary function of cholesterol in the plasma membranes of some animals is to a) a primary function of cholesterol in the plasma membranes of some animals is to enable the membrane to stay fluid more easily when the temperature drops. b) facilitate the removal of hydrogen atoms from saturated phospholipids. c) make the membrane more rigid, allowing it to resist pressure from outside the cell. d) facilitate cell-cell interactions by binding to receptors on neighboring cells.

to enable the membrane to stay fluid more easily when the temperature drops.

Explanation:

The lipid bilayer is made of amphipathic phospholipids. The non-polar tails of phospholipids make the core of the membrane while the polar heads are exposed to the surrounding watery medium. At lower temperatures, tight packing of non-polar tails makes the membrane more rigid. Cholesterol is an amphipathic polar head group and non-polar steroid nucleus and hydrocarbon chain.

Interaction of non-polar part of cholesterol with non-polar tails of membrane phospholipids makes the membrane less rigid at lower temperatures. Thereby, cholesterol serves as an important structural component of membranes of some organisms such as animals and helps maintain the fluidity of the membrane at lower temperatures.

adam ripon he cute then jared goff

spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.