How could the humans and high human population growth rate drive further extinctions of plants and animals?
a. all these people need a place to live and destroy the habitat of many animals.
b. all these people can create more pollution with kill many plants and animals.
c. people continue to introduced invasive species which harm native plants and animals.
d. all of the above.

lysosome is this part of the cell is surrounded by a very thick outer membrane to protect the rest of the cell from its strong enzymes.

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

thinking it would be physical characteristics