What classification is shared with others that have hair?
a. species
b. eukaryote
c. mammalia
d. carnivora

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

Compare and contrast your sells take in oxygen, water, and food. what is one waste product that leaves your cells?

Which of the following must be true for a fossil organism to be useful as an index fossil? a. the fossil organism must be widespread geographically. b. the fossil organism must be abundant. c. the fossil organism must be limited to a short span of geologic time. d. all of the above.