You could talk about pollution, trash on beaches...etc
A is a correct answer.
Dermis is does not had contain significant amounts of the protein collagen.
Hope it helped you.
-Charlie
High-density means full and low density is more empty
Migration is D, the seasonal movement of organisms between locations!
The correct answer is option A, that is, blood.
Cell theory in biology refers to the universally acknowledged scientific theory that living species are constructed of cells, that is, they are the basic fundamental and structural unit of all species, and that all the cells arises from the pre-existing cells. The theory is credited to Schwann and Schleiden. The three postulates of the theory are:
1. All living species comprises of one or more cells.
2. Cell originate from the pre-existing cells.
3. The cells is the fundamental unit of organization and composition in organisms.
