When an athlete is running in a race, what is occuring in her cells so that she can produce ATP?

A: DNA synthesis

B: Cell to cell communication

C: Protein synthesis

D: Cellular respiration

Which part of an atom has most of its mass? A. electrons B. neutrons C. nucleus D. protons

When during the cell cyde are two new daughter cells formed

A mass of 630g is hung on a spring. using force=mass x gravity, what is the force of the mass, acting on the spring

An offspring cannot have a trait if neither of its parents has it. Agree or disagree?

What is required to keep a resource sustainable. A. the consumption rate for the resource most be lower than its renewal rate B. demand for the resource must exceed its renewal rate. C. demand for the resource must exceed its supply D.

How can several different mutations cause the same genetic disease?

In 1900, more than 30 percent of deaths in the U. S. were caused by infectious disease. In 2005, what percent of deaths were caused by infectious disease?

Which cell is bigger, the male or the female? Why?

Compare and contrast histosols and ardisols, the soils of bogs and peat marshes versus those of deserts and arid regions respectively

1. Antibiotics enter the environment in wastewater from pharmaceutical manufacturing plants, in wastes from farms where they are used in animals, and in sewage from human populations. (Manyantibiotics are excreted in their active form.