The combination of chemical reactions through which an organism builds up or breaks down materials

Acid precipitation lowered the pH of the soil in a terrestrial ecosystem that supported a diverse community of plants and animals. The decrease in pH eliminated all nitrogen-fixing bacteria populations in the area.

The use of. Is expected to increase in future

Which statement best describes a scientific theory

Powerful tropical storms that are characterized by wind speeds greater than 120km/h and Storm surges are called

On science a hypothesis must be

The male gametophyte develops inside the ovule; the female gametophyte develops inside the pollen grain. A. true B. False

Who carried out a series of experiments on frogs in the 1780s?

In fruit flies, curved wings are recessive to normal wings, and ebony body is recessive to gray body. A cross was made between two true-breeding flies, one with normal wings and gray body, the other a fly with curved wings and ebony body.

What is one language used for scientific naming

After the separation the two populations, responding to different conditions, will adapt differently, and so their evolutionary paths will