Which sequence best describes asexual reproduction? A. 1 parent cell – 2 genetically identical offspring cells
B. 2 parent cells — 4 genetically identical offspring cells
C. 2 parent cells – 1 offspring cell with a combination of genes from its parents D. 1 parent cell – 4 genetically different offspring cells

When is your respiration rate likely to change? a. when your intestines are digesting b. when your cells have too much glucose c. when your cells need more oxygen d. when your liver is working after a meal

In the diagram below, the northern hemisphere would be in what season at position a a.fall b. winter c.summer d.spring

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).