My travel companions — María, an effusive Madrileña who drove expertly over cliff-hanging roads, and Joan, an adventurous Catalan who helped us discover the Iberian secret — were old friends and fellow carnivores. Source: New York Times In this sentence, carnivores means: people who avoid social contacts animals with bony skeletons people who travel for pleasure animals that feed on flesh

Asmall population of chimpanzees lives in a habitat thant undergoes no change for a long period of time. how will genetic drift affect this population

Which of the following is an eon in the time scale? phanerozoic proterozoic archean all of the above

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).