Lecture 5

Question 1

Extremophiles

Answer 1

organisms that are able to live in extreme conditions

Question 2

Autotroph

Answer 2

produce your own food
* Requires sunlight or inorganic chemicals

Question 2

Niche

Answer 2

“the range of environmental conditions and resource use that allows a species to persist and reproduce” OR “the range of abiotic and biotic conditions that an organism can tolerate”

Question 3

Heterotroph

Answer 3

rely on consuming other organisms
* Requires other organisms

Question 4

Mixotroph

Answer 4

do a bit of both
* Requires both

Question 5

Trade-offs

Answer 5

“compromises organisms make in allocating limited resources to different aspects of their biology, behaviour, or physiology, influencing their fitness and adaptation to specific environmental conditions”

Question 6

Ecozone

Answer 6

refers to a relatively large area of the Earth’s surface with distinct environmental conditions

Question 7

Why do species have niches?

Answer 7

1. Species are adapted to their environment.
2. Different environments have different conditions.
3. No organism can be adapted to all conditions due to trade-offs.