An increase in the calcium ion level in the sarcoplasm starts the sliding of the thin filaments. when the level of calcium ions declines, sliding stops.

a. True

b. False

3. Somatic cells refer to all of an organism's cells except the gametes (sex cells). Would somatic cells undergo mitosis? Why or why not? Would somatic cells under meiosis? Why or why not?

What is the relationship between the oxygen cycle and the carbon cycle?

Where do we find fossils?

If 9% of the thermometers are rejected because they have readings that are too high, but all other thermometers are acceptable, find the temperature that separates the rejected thermometers from the others.

Which sequence furthers scientific knowledge

By what process do all living organisms grow and repair themselves?

What is the name of the heart's contraction?

Which describes the habitat of a frog?

The size of a population refers to the

An electric current will always follow a. the path of least resistance. b. a path toward the north pole. c. a path toward the south pole. d. the path that leads through insulators.