meiosis

metal atom loses electrons to nonmetals

two nonmetals atoms share electrons

hydrogen attacks an electronegative atom electrostatically

positive metal ions attack conducting electrons

the study of landforms, their processes, form and sediments at the surface of

the Earth

the group of processes, such as frost

wedging and volume changes of minerals, that result in the

mechanical disruption of rocks

the decay of rock forming minerals caused

by water, temperature, oxygen, hydrogen and mild acids

the group of processes that are caused by,

or assisted by, the presence of vegetation, or to a lesser extent

animals, including root wedging and the production of organic

acids.

All the members of one species that live in a defined area.

is all of the populations of different species that live in the

same area and interact with one another.

includes the living organisms (all the populations) in an area and

the non-living aspects of the environment

the regions of the surface, atmosphere, and hydrosphere of the earth

(or analogous parts of other planets) occupied by living organisms.

mechanical processes dominate in cold and

dry climates.

processes of mineral decay dominate in

warm and humid climates.

vegetation, and animals, tend to be more

active in warm and humid climates.

Prokaryotic Cell