With an opportunity to replant the trees that make up a very fertile section of forest, a farmer is trying to be strategic by planting a type of plant that can be used for both clothing and shelter. Which of the following should he plant? A. ferns
B. Moss
C. Gymnosperms
D. angiosperms

(check all that are true)

Environmental impacts on evolution : mastery test

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).

Which statements best describe the atoms of the gas neon? check all that apply