Ch. 18 sec. 2 Answers
1. What is a habitat?
1. What is a habitat?
• The place where an organism
lives
2. List and explain the two types of
environmental
factors that influence organisms.
2. List and explain the two types of
environmental
factors that influence organisms.
• The living components (biotic)
and the nonliving factors.
3. List at least 8 examples of abiotic
factors.
3. List at least 8 examples of abiotic
factors.
• Temperature, humidity, pH,
salinity, oxygen concentration,
sunlight, availability of Nitrogen,
and precipitation
4. What does a tolerance curve show?
4. What does a tolerance curve show?
• A graph of performance versus
values of an environmental
variable.
5. What is the difference between
acclimation and adaption?
5. What is the difference between
acclimation and adaption?
• Acclimation (adjusting their tolerance to
abiotic factors) occurs within a lifetime.
• Adaptation is a genetic change in a
species that occurs from generation to
generation over time.
6. Which do you think humans are:
Conformers or Regulators? Explain
6. Which do you think humans are:
Conformers or Regulators? Explain
7. Which strategy to survive unfavorable
environmental conditions do most birds
use: Dormancy or Migration?
7. Which strategy to survive unfavorable
environmental conditions do most birds
use: Dormancy or Migration?
• Migration
8. What is a niche?
8. What is a niche?
• The specific role, or way of life, of
a species within its environment.
9. What is the difference between
generalists and specialists?
9. What is the difference between
generalists and specialists?