In order for a cancer to develop, cells must be capable of breaking away from neighboring cells, and they must ignore growth-inhibitory signals from other cells, resulting in uncontrolled growth and cell division

Indicate whether the statement is true or false


TRUE

Biology & Microbiology

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Although energy cannot be created or destroyed, energy transformations are not 100% efficient. Why?

a. Energy is lost as an increase in heat. b. Energy is lost as an increase in entropy. c. Energy is lost as a change in free energy. d. Energy is lost as a decrease in heat. e. Energy is lost as a decrease in entropy.

Biology & Microbiology

The point at which this neuron will be able to

generate another action potential is indicated by a. A. b. B. c. C. d. D. e. E.

Biology & Microbiology

Increases in temperatures have been associated with ________ in the body size of endothermic animals

Fill in the blank(s) with correct word

Biology & Microbiology

Muscle contraction is triggered

A. by the nerve releasing a neurotransmitter, which triggers a flow of calcium that releases ATP and begins the actin filaments sliding across the myosin binding sites. B. by release of a neurotransmitter at a synapse that directly causes actin and myosin to slide. C. by the nerve releasing a neurotransmitter, which triggers a flow of calcium that attaches to actin filaments and exposes the myosin binding sites. D. when high levels of oxygen and sugar are released by the sarcolemma. E. when a surplus of ATP is released by a nerve motor unit.

Biology & Microbiology