Which of the following species would have the greatest chance of going extinct?(1 point)

Question

Responses

a species with a fast reproduction rate and lots of genetic variation living in a stable environment
a species with a fast reproduction rate and lots of genetic variation living in a stable environment

a species with a fast reproduction rate and lots of genetic variation living in a changing environment
a species with a fast reproduction rate and lots of genetic variation living in a changing environment

a species with a slow reproduction rate and very little genetic variation living in a changing environment
a species with a slow reproduction rate and very little genetic variation living in a changing environment

a species with a slow reproduction rate and very little genetic variation living in a stable environment

Answer 1

The species with the greatest chance of going extinct would be:

a species with a slow reproduction rate and very little genetic variation living in a changing environment.

This is because a slow reproduction rate limits the species' ability to recover from population declines, and little genetic variation reduces its ability to adapt to changes in the environment. Coupled with the changes in the environment, this makes it particularly vulnerable to extinction.

Answer 2

Which of the following is believed to be common among all mass extinction events?(1 point)
Responses

the number of species that went extinct
the number of species that went extinct

the type of species that went extinct
the type of species that went extinct

the type of event that causes the extinction
the type of event that causes the extinction

a significant change in the global climate

Answer 3

The response believed to be common among all mass extinction events is:

a significant change in the global climate.

Mass extinction events are often associated with dramatic shifts in climate or environmental conditions that disrupt ecosystems and lead to widespread species declines.

Answer 4

Imagine two populations of penguins live in the same ecosystem. One population begins to exchange stones as a mating ritual while the other population begins to dance by shifting from one foot to the other. Individuals from each population will only mate with individuals that display the appropriate mating ritual. Which type of reproductive isolation mechanism does this scenario describe?(1 point)
Responses

Habitat Isolation
Habitat Isolation

Temporal Isolation
Temporal Isolation

Geographic Isolation
Geographic Isolation

Behavioral Isolation

Answer 5

The scenario describes Behavioral Isolation.

In this case, the two populations of penguins are engaging in different mating rituals (stone exchange vs. dancing), which prevents them from mating with each other. Behavioral isolation occurs when different species or populations have distinct mating behaviors that influence mate choice.

Answer 6

Human-created climate change is caused by(1 point)
Responses

increased use of green energy sources.
increased use of green energy sources.

increased oxygen in the air.
increased oxygen in the air.

increased carbon dioxide in the air.
increased carbon dioxide in the air.

decreased burning of fossil fuels.
decreased burning of fossil fuels.

Answer 7

Human-created climate change is caused by increased carbon dioxide in the air.

The rise in carbon dioxide levels is primarily due to activities such as the burning of fossil fuels, deforestation, and industrial processes, leading to an enhanced greenhouse effect and global warming.

Answer 8

Imagine the environment of an ecosystem changes such that it floods more often. Which species would most likely increase in numbers in this new environment?(1 point)
Responses

a flightless bird species that makes its nest on the ground
a flightless bird species that makes its nest on the ground

a mammal species that burrows underground
a mammal species that burrows underground

an insect species that lives on the leaves of short bushes
an insect species that lives on the leaves of short bushes

a tree species that is tolerant of excess water

Answer 9

The species that would most likely increase in numbers in an environment that floods more often would be:

a tree species that is tolerant of excess water.

Tree species that can tolerate excess water are better adapted to thrive in flooded conditions, while the other species listed may struggle to survive due to increased flooding.