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Flashcards in Chapter 2 Deck (15)
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1

Natural populations are controlled by density-dependent and density-independent forces. What is an example of a density independent factor?

Adverse weather

2

True/False

A frog is found along the edge of a pond. This location where it lives would be the frog’s niche

False

3

The organisms responsible for nutrient flow through an ecosystem are _______.

Decomposers

4

True/False

While an animal can survive (determined by lab tests) between the temperatures of 10 degrees C. and 30 degrees C, we find in nature that it only occurs between 16 degrees C. and 28 degrees C. This is the difference between the fundamental niche and the realized niche of the animal.

True

5

True/False

A community is made up of living organisms and their non living environment

False

6

Commensalism differs from mutualism by the fact that in commensalism...

One organism is not affected

7

The energy storage in an animal’s tissues is called...

Biomass

8

An assemblage of living organisms sharing the same environment and having a distinctive unity is referred to as a...

Community

9

The carrying capacity of the environment is determined by..

The limiting productivity of the environment

10

An animal’s relationship to all the biotic and abiotic factors in its environment is called its...

Niche

11

A keystone species is..

A species who’s removal causes major shifts in other species in a community

12

True/False

A population is the group of individuals belonging to a single species, though not necessarily as a reproductive unit

False

13

True/False

A study of both the living community and all of the physical factors such as sunlight, soil types, etc. would focus on a more complex level, the ecosystem

True

14

A series of steps in which plants are eaten by consumers, which are themselves eaten by other consumers, is called a ______

Food chain

15

Almost all life depends on the energy of the ______

Sun