AnswersCA-Life Science B High SchoolLab: Interdependence of Organisms

Population Growth Answers

10 verified answers1 views
3

Which best describes the following impacts: water storage, clean energy, and flood prevention?

A
positive impact of a density-dependent limiting factor
B
positive impact of a hurricane
C
positive impact of beavers in an ecosystem
D
positive impacts of dams on society
5

The construction of wind farms has affected the migratory patterns of some bird populations. Bird populations have been noted to no longer increase and sometimes even decrease in these areas. What is this known as?

A
a density-dependent limiting factor
B
a population-independent factor
C
a density-independent limiting factor
D
a population-dependent limiting factor
8

Which human activity can produce disruption of fish breeding habits, increase in mosquito population, and flood control?

A
construction of dams to produce electricity
B
construction of dams to produce electricity
C
habitat destruction that decreases beaver population
D
habitat destruction that decreases beaver population
E
increased erosion due to improper farming techniques
F
increased erosion due to improper farming techniques
G
overfishing in artificial lakes
H
overfishing in artificial lakes
9

A population of elephants becomes too large, and several members leave the population. What is this process called?

A
death rate
B
death rate
C
immigration
D
immigration
E
emigration
F
emigration
G
births
H
births
10

The construction of wind farms has affected the migratory patterns of some bird populations. Bird populations have been noted to no longer increase and sometimes even decrease in these areas. What is this known as?

A
a density-dependent limiting factor
B
a population-independent factor
C
a density-independent limiting factor
D
a population-dependent limiting factor
12

A square kilometer of forest has 200 deer. What is the term that is used to describe this number?

A
density-dependent
B
birth rate
C
limiting factors
D
population density
13

Which type of limiting factor affects a large population more than it affects a small population?

A
density dependent
B
density independent
C
population dependent
D
population independent
14

In August 2005, Hurricane Katrina caused significant damage in several states along the Gulf Coast, including Alabama, Mississippi, and Louisiana. Thousands of people were evacuated from their homes due to flooding and other damage that was caused by the storm. Which type of limiting factor was Hurricane Katrina?

A
density-independent factor
B
density-dependent factor
C
population-dependent factor
D
population-independent factor
15

In one year, 35 giraffes are born to a population. What does this number represent?

A
growth rate
B
emigration
C
immigration
D
birth rate
16

Colorado has a vast population of lodgepole pines. A population of lodgepole pines has been killed in a section of the forest. What is a possible limiting factor of that population?

A
devastation by the pine bark beetle
B
Colorado’s long history of acidic soils
C
genetic variability
D
shallow root system
17

Poison dart frogs live in the rainforest. They produce a poison by eating toxic fire ants. The only known predator is a snake, Liophis epinephelus. Which is most likely a density-independent factor that affects the poison dart population in the rainforest?

A
clear cutting the rainforest
B
limited food source
C
susceptibility to disease
D
increase in population of Liophis epinephelus
18

Predict what might happen to a population that is experiencing little immigration and emigration, low birth rate, and high death rate.

A
The population decreases.
B
The population increases.
C
The population grows too much too fast.
D
The population grows outside of its habitat.
19

Raccoons prefer woody areas and are omnivores, which means that they eat meat and plant materials. They are nocturnal, meaning that they are active at night. They are often eaten by mountain lions, gray wolves, and coyotes. Which of the following is a limiting factor for a raccoon population?

A
shortened summer days
B
deforestation
C
claw length
D
breeding season

Did you find these answers helpful?