DDT was hazardous because it:

A. decomposed too quickly

B. killed everything it was sprayed on

C. increased the amount of bacteria in soil

D. was carried all over the world by wind

Many viruses are a protein coat surrounding a segment of DNA. Because viruses are not made of cells they are ... A. not considered to be living things. B. able to reproduce very quickly. C. better able to communicate with other viruses.

Phosphorus is very important for living things because living organisms need phosphorus for what?

Which sequence of terms best represents the central dogma of molecular biology? which sequence of terms best represents the central dogma of molecular biology?

What does a wave carry? force

Which of these is a difference between a single skin cell and the skin tissue that covers an entire hand?

Smooth muscle is found in just one place in the body. true or false

Which of the following characteristics evolved independently in mammals and birds? A) bilateral symmetry B) amniotic eggs C) jaws D) bone E) endotherm

A client is heard saying, "i like eggs, fried by meg, served on a keg, kicked in the leg and don't want her to hoopanize them ever again." what should the nurse note in the client's record?

Explain how unfavorable traits can disappear in a specie

Myoglobin, and iron - and oxygen-binding protein found in the muscle tissue of vertebrates, is 0.316% fe by mass. if a myoglobin molecule contains one iron atom, what is the molar mass of myoglobin?