Diffusion is important to organisms because it is the process by which useful molecules enter the body cellsand waste products are removed. Digested food molecules (amino acids, glucose) move down a concentration gradient from the intestine to the blood.
Answer - A
The environment movement is basically a conservation movement aimed at encouragement of wise use of natural resources and conservation of the plants and the natural habitat.
It should be noted that the organ of the body is the first to receive the nutrients after they pass through the gi tract, is small intestine.
<h3>What is small intestine?</h3>
small intestine can be regarded as an organ in the gastrointestinal tract and its this organ that enable absorption of nutrients from food takes place. and then prepares those nutrients for use in the body.
Learn more about small intestine at:
brainly.com/question/24864502
DNA is a transforming actor
Crossing over can create genetic variation. Crossing over is when chromosomes cross over they give + take a part of another chromosome which can create different variation in genes.