The first hominin species associated with the use of stone and bone tools was:
A. Australopihecus afarensis
B. Australopithecus robustus
C. Homo sapiens
D. Homo habilis
E. Homo erectus
Ans: D. Homo habilis
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Large, uniform distances typically separate individual panda bears from each other. What type of population distribution do pandas exhibit?
A. random distribution B. logistic distribution C. clustered distribution D. over-dispersed distribution E. sinusoidal distribution
It is generally accepted that the vertebrates that evolved during the early Devonian period are the
A. sharks and bony fish. B. hominoids. C. birds. D. dinosaurs. E. mammals.
_____ in arteries sense changes in the acidity of the blood
a. Mechanoreceptors c. Photoreceptors b. Neurotransmitters d. Chemoreceptors
During development, some cells ________, or specialize in both structure and function
Fill in the blank(s) with correct word