Cell membranes are composed of phospholipids that have head and tail regions the phospholipid tail is hydrophobic and spontaneously orients to the inside of the membrane. which of the following phrases best describes the hydrophobic portion of a phospholipid?
a. has few interaction with water
b. has an affinity for low salt concentrations
c. is repelled by lipids
d. forms hydrogen bonds with water.

The answer to your question is: A. Has few interaction with water

Explanation:

As you can read in the question and see in the picture, phospholipid is formed by to parts:

A head that is polar, that means it prefer to interact with polar substances like water.

A tail: that is non polar, that means it doesn't interact with polar substances, then, they only interact with non polar substances.

In the cell membrane, the heads of the phospholipids are in the borders and the tails are inside. Membrane is like a sandwich where the breads would be the heads and the content (ham, etc) would be the tails.

when atmosphere interacts with biosphere they focuses on on the sources and sinks of green house gases (ghgs) air pollutants, particular matters, water and energy between the earth's surface and the atmosphere. the biosphere affects the climate. the atmosphere and biosphere are in constant interaction with each other, and all living things rely on gases in the atmosphere for life. organisms such as animals take in oxygen gas form the atmosphere to use in every cell of their body for smooth functioning of daily routine exercises.