Sunlight is energy that comes from the sun. how is that energy produced?

question 6 options:

a)
uranium atoms split apart, releasing nuclear energy.

b)
molecules break down, releasing chemical energy.

c)
molecules are created, releasing chemical energy

d)
hydrogen atoms fuse together into helium, releasing nuclear energy.

Me the formula cacl2 represents the compound

Describe the two types of vascular tissue

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).