Is a bear biotic or abiotic

Which characteristics describe deep ocean currents? Check all that apply. -move slowly caused by wind -move cold water -move in a circular pattern -caused by differences in density

What is any change in the DNA sequence called?

Which of the following inner planets virtually has no atmosphere?

Oxygen accounts for what proportion of the volume of gases in the atmosphere?

What word means the same thing as producer

How the structure of DNAallows it to serve as the basis for inheritance?

Where does DNA replication happen?

Within a forest ecosystem, the habitat of a fern would be ... . A. the tree that casts the shadow in which the fern grows. b. the decaying plant material which provides nutrients for the fern. c. the soil and the space occupied by the fern leaves. d.

Laboratory stations are usually divided into clean and dirty areas, to prevent contamination of paperwork. true false

Is iron oxide located in hydrosphere lithosphere or atmosphere?