What statement best explains why the overall charge on an atom is zero?

What are chromosomes? A. Strands of DNA wrapped around proteins B. Any organism that contains DNA C. The alleles that cause certain traits D. A form of virus that infects cells

What are the processes involved in the nitrogen cycle

Can the energy, in an ecosystem, flow forwards and backwards?

Who pays for most of the scientific research done in the United States

List and describe 2 advantages of sexual reproduction?

The mating of a horse and a donkey produces a mule, which is a viable offspring that is infertile. We would conclude that A. A house and a donkey are members of the same species B. A mule can fall into the species lines of both a mule and a horse. C.

How does waste move from the kidney to the bladder in the human excretory systems

A plant uses energy from the Sun to make food. What kind of energy transformation is this? a. light energy to chemical energy b. chemical energy to light energy c. mechanical energy to chemical energy d. light energy to mechanical energy

The major body structures and organ systems form during which trimester

What is the main female sex hormone? is it d? testosterone adrenaline insulin estrogen