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Which of the following statements about the stimulation of skeletal muscle contraction is TRUE?

Hyperpolarization of a neuron results from

Hyaline cartilage contains a_________ percentage of water; cartilage cells reside in small spaces called_________.

Increased phosphate ion concentration may contribute to fatigue by interfering with

The separation of oppositely charged ionic particles across a resting neuron’s membrane results in a potential that is measured as a

Which of the following statements concerning our current understanding of skeletal muscle contraction is FALSE?

The sodium-potassium exchange pump pumps

Each thick filament contains about_________ protein molecules (each molecule has two heads and two braided tails).

Proteinaceous infectious particles that cause degenerative diseases of the nervous system in humans and other animals are called

Explain the four stages to the origin of life.