Answer:
Theories <em>can</em> be created by just one person
Explanation:
What normally happens is that one person creates a theory, and as years go by new research comes out further advancing or modifying a theory. The theory then is created by many people. Which overall still means that theories can be created by just one person.
It means , one , only , single .. hopes this helps
Answer:
The principal components of the plasma membrane are lipids (phospholipids and cholesterol), proteins, and carbohydrate groups that are attached to some of the lipids and proteins.
Thigmotropism is a directional growth movement of curvature which occurs in response to stimulus of contact. Thigmotropism is found in twiners and tendrils. After initial contact with support due to nutation, the tendril or twiner shows less growth in the region of contact and more growth on the other side. As a result they bend over the support.