Ecosystem
Name: ______________________ Date: ____________
Write the letter of the matching definition next to each term.
1. ecosystem
A. Animal hunted or caught for food
2. natural
B. To have offspring or produce more individuals of a given animal or plant
3. selection
C. Any event that changes genetic structure
4. genetics
D. A natural process resulting in the evolution of organisms best adapted to the environment
5. mutation
E. A natural process resulting in the evolution of organisms best adapted to the environment
6. biotic
F. Protective covering that provides protection from the weather
7. prey
G. A system formed by the interaction of a community of organisms with their physical environment
8. predator
H. Of or relating to living organisms
9. evolution
I. The sequence of events involved in the ___ development of a species or taxonomic group
10. variation
J. Any animal that lives by preying on other animals
11. environment
K. The type of environment in which an organism or group normally lives or occurs
12. diversity
L. Clear liquid we drink that falls as rain
13. ecology
M. The branch of biology that studies heredity and variation in organisms
14. habitat
N. Noticeable heterogeneity
15. population
O. The natural world around us
16. extinction
P. An instance of change
17. endangered
Q. No longer active
18. survival
R. The environment as it relates to living organisms
19. reproduce
S. What we eat to get energy and grow
20. species
T. The number of inhabitants in a given place
21. characteristic
U. A prominent attribute or aspect of something
22. food
V. At risk of becoming extinct.
23. shelter
W. Someone regarded as certain to succeed
24. water
X. Coins collectively (plural)