If a molecule is too big or has a charge it will not diffuse through the membrane by passive transport.
A physical environment with different species that interact with one another and with non-living thing is called an ecosystem
Answer:
The Skeleton
Explanation:
because the softer tissues and skin usually do not last long enough to become fossilized
Answer:
Genotype" is an organism's full hereditary info. and "Phenotype" is an organism's actual observed properties, such as development, or behavior.
<span>The principal components of the plasma membrane are lipids (phospholipids and cholesterol), proteins, and carbohydrate groups that are attached to some of the lipidsand proteins. A phospholipid is a lipid made of glycerol, two fatty acid tails, and aphosphate-linked head group.
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