What is the primary type of biological anthropology scenario b biological anthropologists have observed several chimpanzees in western africa making tools to them hunt. the chimpanzees were seen modifying branches and sticks into spears. they removed any leaves or small branches to make a smooth shaft. they also chewed on the end of the branches to give them sharp points. they then thrust the sharpened branches like spears into tree trunks, where small primates called galagos make sleeping nests. although it remains unclear how successful the chimpanzees are in actually killing galagos, multiple members of the chimpanzee group have been observed producing the spears. in this research?

Choose the incorrect statement (a) the motor end plate membrane is only capable of generating graded potentials, but it is contiguous with the skeletal muscle sarcolemma, which can generate action potentials. (b) propagation of an action potential through the t-tubules into the sarcoplasmic reticulum triggers the release of ca++ into the cytoplasm of a skeletal muscle fiber. (c) the generation of suprathreshold endplate potentials in multiple muscle fibers could be due to the increased frequency of action potential generation at the axon hillock of a single motor neuron. (d) a greater amount of ach would be found in the presynaptic vesicles of a motor unit that fired several action potentials after exposure to botulinum toxin, than in a motor unit that fired several action potentials after exposure to the venom of the krait snake (which contains α-bungarotoxin).

Define adaptation. why do organisms adapt? give an example.

Which hypothesis most likely explains the results at 60°c and 70°c