Unit 1: Intro to Ecosystems

Question 1

Competition

Answer 1

When individuals struggle to get a limited resource that is shared with others.

Question 2

Competitve exclusion principle

Answer 2

Two species competing for the same limited resource can’t coexist. One species will do better than the other when they have the same ideal conditions.

Question 3

Resource partioning

Answer 3

2 species dividing dividing resources to avoid competion over a shared resource.

Question 4

Symbiotic relationships

Answer 4

Two species closely associated with eachother.

Question 5

Predator

Answer 5

An animal that consumes another, its prey.

Question 6

Prey

Answer 6

The animal a predator kills and consumes.

Question 7

Temporal Resource Partioning

Answer 7

2 species in the same area using the same resources at different times.

Question 8

Spatial Resource Partioning

Answer 8

2 species reduce competition by using different habitats.

Question 9

Morphological Resource Partioning

Answer 9

Natural evolution reduces competition.

Question 10

Predation effect

Answer 10

Positive/Negative

Question 11

Competiton effect

Answer 11

Negative

Question 12

Parasitism

Answer 12

An organism lives on or in another.

Question 13

Parasitism effect

Answer 13

Negative/Positive

Question 14

Herbivory

Answer 14

An animal consumes a producer.

Question 15

Herbivory effect

Answer 15

Negative/Positive

Question 16

Mutualism

Answer 16

2 species interact and benefit eachother.

Question 17

Mutualism effect

Answer 17

Positive

Question 18

Commensalism

Answer 18

A relationship where oen species benifets and one is not affected.

Question 19

Commensalism effect

Answer 19

Postive and no effect

Question 20

Two factors that decide if a species can do good in an area

Answer 20

Their range of tolerance and their relationships with other species.

Question 21

Parasitoids

Answer 21

A form of predator that lay eggs in other organsims that will hatch and eat the host from the inside out.

Question 22

What are parasites causing disease in their host called?

Answer 22

Pathogens

Question 23

Organisms won’t engage in mutualistic relationships if what?

Answer 23

Their benefit is too small.

Question 24

Keystone Species

Answer 24

A species that is not abundant but has a large effect on their ecological community.

Question 25

Ecosystem Engineer

Answer 25

A keystone species that makes or keeps a habitat for other species.