1
Describes the efficiency with which energy is transferred from one trophic level to the next.
2
A measure of the potential energy in water as well as the difference between the potential in a given water sample and pure water.
3
Component of the blood that functions in the immune system. Also known as a leukocyte.
4
The electrons in the outermost occupied shell (or shells) determine the chemical properties of the atom.
5
The yellow colored photosynthetic pigments.
6
The valence band is the highest range of electron energies in which electrons are normally present at absolute zero temperature.
7
A organism in which internal physiological sources of heat are of relatively small or quite negligible importance in controlling body temperature. “Cold blooded”.
8
An interaction of living things and non-living things in a physical environment.
9
A heterocyclic compound of carbon, nitrogen, oxygen, and hydrogen. It forms ions and salts known as urates and acid urates, such as ammonium acid urate.
10
Describes a genetically distinct geographic variety, population or race within a species, which is adapted to specific environmental conditions.
11
The outermost layer of cells or tissue of an embryo in early development, or the parts derived from this, which include the epidermis, nerve tissue, and nephridia.
12
In several fields the valence of an element refers to the number of elements to which it can connect.
13
A membrane-bound organelle which is present in all plant and fungal cells and some protist, animal and bacterial cells.
14
A biological agent that reproduces inside the cells of living hosts.
15
A liquid by- product of the body secreted by the kidneys through a process called urination (or micturition) and excreted through the urethra.
16
The vascular tissue in plants that conducts water and dissolved nutrients upward from the root and also helps to form the woody element in the stem.
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