Glossary

Select a subject
Search for a definition...
Back to the Glossary
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
R
S
T
U
V
W
X
Y
Z
Subject:

a species that has been introduced into an area in which it did not previously or naturally...

Subject:

the digestive tract of an animal, made up of different organs, that extends from the mouth to...

Subject:

substance that causes an allergic reaction.

Subject:

hypersensitivity to a substance that is usually harmless

Subject:

small air-filled sac-like structures from which the lungs are made

Pages