The nucleus of an atom has an overall

positive charge

neutral charge

negative charge

Cheetahs are the largest of the small cats. The cheetah population once covered all of Africa and Asia. Now cheetahs are an endangered species. Loss of habitat, commercial farming, and development are major causes of its decline.

1. Which of the following is composed of myosin protein? A) thick filaments. B) thin filaments. C) Z discs. D) myofilaments. 2. Which of the following is not an important function of the components of the muscular system? A) mechanical protection.

All of the following are examples of voluntary muscle movement except A. heart beating B. leg kicking a soccer ball C. arm picking up a glass

Which of the following is not a part modern cell theory

Why is the oxygen atom of one water molecule attracted to the hydrogen atom of another water molecule? A. Because hydrogen has a partially positive charge and oxygen has a partially negative charge B.

Is an apple core biodegradable?

Cells exchange what with other cells

What would the result be if a drug that blocks the action of rna polymerase was introduced into a virus-infected organism?

Which of the following changes to the local hydrologic cycle will result if large areas of land experienced clear-cutting? Transpiration of water from vegetation will increase. Evaporation of water from the soil will increase.

During mitosis, sister chromatids are pulled apart by?