The series of predictable changes that occurs in a community over time is called
a. population growth.
c. climax community.
b. ecological succession.
d. climate change.

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

Which of the following is not considered an appendage of the skin? nails glands follicles none of the above

What is usually (but not always) related to the metabolic processes of living organisms in its organic form?