Ecology Chapter 19

Question 1

Where is the biosphere? What does it do?

Answer 1

The thin outer layer of the Earth. It is capable of supporting life

Question 2

Define Ecology:

Answer 2

Study of the relationship of organisms to their environment

Question 3

Define Population:

Answer 3

A group of individuals of a single species living in close proximity and capable of interbreeding

Question 4

What makes up community?

Answer 4

a bunch of populations coexisting with other plants, fungi, protists and prokaryotes

Question 5

What defines a habitat

Answer 5

The place where the organism lives

Question 6

A niches is like a species _____ in a habitat?

Answer 6

job

Question 7

What happens in predator prey interaction?

Answer 7

Predator benefits and the prey is harmed

Question 8

What happens in herbivory

Answer 8

animal benefits and the plant is harmed

Question 9

What kind of defense against predation and herbivory can a plant have?

Answer 9

Mechanical
* Armor in animals, thorns in
plants

Question 10

What kind of defense against predation can animals have?

Answer 10

Chemical

Question 11

Chemical defense

Answer 11

Toxins

Question 12

Coloration defense

Answer 12

serves to warn potential
predators that it is toxic

Question 13

What is mutualism?

Answer 13

occurs when both members of a pair of species benefit from their interaction

Question 14

Who benefits from mutualism?

Answer 14

both members of a pair of species

Question 15

What is parasitism?

Answer 15

living as a parasite in or on another organism.

Question 16

Who benefits from parasitism?

Answer 16

the parasite benefits

Question 17

Predator prey relationship led to mimicry, explain?

Answer 17

Harmless species mimic those that have toxins or
stings

Question 18

Explain foundation species

Answer 18

primary producers (“base” or “bedrock” of a community)

Question 19

Examples of foundation species

Answer 19

coral=foundation species of coral reef ecosystems

Question 20

What is a keystone species

Answer 20

Species that maintain the ecological community structure

Question 21

What harm do invasive species cause?

Answer 21

alter the community they invade

Question 22

The study of the relationship of organisms to their environment is:
a. Community
b. Population
c. Habitat
d. Ecology

Answer 22

d. Ecology

Question 23

Foundation species such as _______ are the “bedrock” of the community.
a. Coral
b. Birds
c. Wolves
d. Bats

Answer 23

a. Coral

Question 24

The wolves in Yellowstone National Park help to control herbivores, they are considered _______?
a. Ecosystem servicers
b. Invasive species
c. Keystone species

Answer 24

c. Keystone species

Question 25

When 2 species interact, and one species benefits and the other neither benefits nor is harmed, it is called:
a. Predation
b. Parasitism
c. Mutualism
d. Commensalism

Answer 25

d. Commensalism

Question 26

Commensalism

Answer 26

One species benefits and the other
neither benefits nor is harmed

Question 27

This category of species disrupt the biodiversity of an ecosystem?
a. Keystone
b. Invasive
c. Predatory
d. Native

Answer 27

b. Invasive