Which best describes the ecosystems on earth?
o
a. there are very few types of ecosystems on earth.
o
b. separate ecosystems can affect each other.
o
c. ecosystems do not interact with each other.
d. earth has mostly rain forest ecosystems.
subm

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.

Immature bone cells, or osteoblasts, manufacture a protein called osteoid as well as several hormones. because of this, we would expect osteoblasts to contain numerous a) nuclei. b) ribosomes. c) lysosomes. d) golgi bodies.

Which organism can most likely be classifild as domain bateria