The Proteins in the cell membrane

a. remain in fixed postions

b. allow small molecules that can dissolve lipids to pass into the cell

c. transport certain molecules into or out of the cell

d. prevent osmosis from taking place.

During evolution, the idea proposed by Darwin that some characteristics make organisms more or less likely to survive is called

Explain how energy from the sun is passed to you

Why do athletes often eat lots of carbohydrates the day before a competition? Carbohydrates build tissues in muscles. Carbohydrates provide lots of cellulose. Carbohydrates give living things energy. Carbohydrates provide lots of dietary fiber.

Oil formation occurs where millions of years ago there were large oceans. this is because oceans have A - waves that are constantly moving B - great numbers of tiny marine animals C-currents that mix the water throughly D-deep caverns where no light

Height, hair color, eye color, and intelligence are traits passed on by a. genes b. chromosomes c. RNA

Creatures that are poorly suited to the environment do not generally weaken the entire population because A. The population protects its own B. They often die before they can reproduce C. All populations have some weak members D.

Summarize the process of Transcription in your own words.

A nurse cares for a client with a stage ii pressure ulcer on the right hip. the nurse anticipates finding what type of appearance to the skin over this area?

Why are spiders considered to be an r selected species?

What are restriction enzymes used for in nature?