Unit 2 - The Living World

Question 1

If a population undergoes a bottleneck, what will happen?

Answer 1

Genetic diversity will be lost

Question 2

The more genetically diverse a population is the better it is and more able to withstand what?

Answer 2

Stressors

Question 3

Ecosystems with large amounts of biodiversity are more like to recover from _______.

Answer 3

Disruptions

Question 4

Loss of habitat causes _______ species to be loss then generalists are lost.

Answer 4

Specialist

Question 5

The number of different species in an ecosystem

Answer 5

Species Richness

Question 6

The number of individuals within each species

Answer 6

Species Evenness

Question 7

What are the four categories of ecosystem services?

Answer 7

Provisioning, regulating, cultural, and supporting

Question 8

Activities that disrupt the services that ecosystems provide to humans, which cause economic and ecological impacts

Answer 8

Anthropogenic

Question 9

Drinking water, timber, wool, natural gases, oils, and medicinal benefits

Answer 9

Provisioning Services

Question 10

Pollination, air filtration, climate regulation, water purification

Answer 10

Regulating Services

Question 11

Recreation, tourism, aesthetic enjoyment

Answer 11

Cultural Services

Question 12

Water cycle, photosynthesis, cycling of nutrients, soil creation

Answer 12

Supporting Services

Question 13

The study of the ecological relationships and distribution of organisms on islands and how the communities are structured

Answer 13

Island Biogeography

Question 14

Island species are ______ because of the limited resources, such as food and territory.

Answer 14

Specialists

Question 15

If _______ species are introduced to an island they out compete the specialists

Answer 15

Invasive

Question 16

The range of conditions that an organism can endure before it doesn’t survive

Answer 16

Ecological Tolerance

Question 17

__________ can have consequences that are as great, if not greater than many anthropogenic disruptions.

Answer 17

Natural disruptions

Question 18

Operate on a range of scales, periodic, episodic, or random

Answer 18

Earth system processes

Question 19

Wildfires, droughts, floods, tornadoes

Answer 19

Periodic

Question 20

Hurricanes, El Nino, La Nina

Answer 20

Episodic

Question 21

Earthquakes, disease epidemics, volcanic eruptions

Answer 21

Random

Question 22

Why does the sea level vary?

Answer 22

Changes in glacial ice on Earth over time

Question 23

Results in habitat changes

Answer 23

Major environmental changes

Question 24

A reason