Is viviparity a synapomorphy of the mammals? Explain.

Match the term that best fits the description or definition regarding phenotype and activities of primates. a)diurnal b)olfaction c)brachiation d)Strepsirhini e)rhinarium CHOOSE Wet fleshy pad on the end of the nose Arm swing Wet-nosed primates active during the day  the sense of smell

(A) Define Eusocial behavior. (B) What is it about the mating system of Eusocial hymenoptera that Hamilton used to explain the evolution of Eusocial behavior in this insect group? (C) Eusocial behavior has evolved in non-hymenoptera. The explanation depends on unique features of the ecology of these organisms. What might these be? (D) Use the Florida scrub jay, sponge shrimp or naked mole rat to explain your answer.

Recent evidence suggests that the last common ancestor of birds and crocodylians was endornermic. False True

Describe two mammal order, structures, and behaviors.

Which stage of chimpanzee development is most similar to adult Ardipithecus ramidus? To adult Australopithecus afarensis? To adult Homo sapiens? What do these observations suggest with regards to developmental timing?