Something not found in ALL mammals is:
A. endothermy (i. e., "warm-bloodedness")
B. hair
C. live birth
D. milk to feed their young
C. live birth (Almost every mammal gives live birth except the platypus and the echidna)
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What is the most abundant animal in soft-bottomed communities?
a. Whelks b. Brittle stars c. Polychaetes d. Mussels
During forced inhalation, the __________ intercostal muscles contract, moving __________ upward
a. internal; the diaphragm b. internal; the ribs c. external; the diaphragm d. external; the ribs e. external; both the diaphragm and the ribs
What do plants and animals have in common?
a. both are heterotrophic b. both are autotrophic c. both are prokaryotic d. both are eukaryotic
It is widely accepted that altruistic behavior has evolved for the benefits it provides the species as a group.
Answer the following statement true (T) or false (F)