Which possibility would have a large impact on the environment?(1 point)

Responses

a population of robins die
a population of robins die

a single robin dies
a single robin dies

a nest of robin eggs is abandoned
a nest of robin eggs is abandoned

a population of robins compete for food

9 answers

The response with a large impact on the environment would be:

a population of robins die

This is because the death of a whole population affects the ecosystem more significantly than the death of a single bird or an abandoned nest. It can lead to changes in the food web, disruptions in pollination, and impacts on other species that rely on robins for various ecological roles.

Please rank the following ecological levels of organization in ascending order.(1 point)
Responses

individual → population → ecosystem→ community
individual → population → ecosystem→ community

community → ecosystem → population → individual
community → ecosystem → population → individual

individual → population→ community→ ecosystem
individual → population→ community→ ecosystem

ecosystem → community → population → individual

The correct ranking of the ecological levels of organization in ascending order is:

individual → population → community → ecosystem

This order reflects the hierarchy from the smallest unit (individual) to larger systems (population, community, and ultimately ecosystem).

Due to regular changes in the environment, an ecosystem at carrying capacity could be described as(1 point)
Responses

constant with no changes over time.
constant with no changes over time.

declining gradually over time.
declining gradually over time.

fluctuating slightly over time.
fluctuating slightly over time.

growing exponentially over time.

The correct response is:

fluctuating slightly over time.

Even when an ecosystem is at carrying capacity, it can experience regular environmental changes and fluctuations in population sizes due to factors like resource availability, climate variations, and interactions with other species. This results in slight fluctuations rather than a constant or exponential growth.

What is the definition of population?(1 point)
Responses

all members of a particular species in the world throughout time
all members of a particular species in the world throughout time

all members of a particular species in a specific area at a certain time
all members of a particular species in a specific area at a certain time

all members of a particular species in the world at a certain time
all members of a particular species in the world at a certain time

all members of a particular species in a specific area throughout time

The correct definition of population is:

all members of a particular species in a specific area at a certain time.

This definition emphasizes that a population consists of individuals of the same species that live in a defined geographic area during a specific period.

Which of these traits makes the monarch butterfly a specialist?(1 point)
Responses

They migrate to Mexico in the winter.
They migrate to Mexico in the winter.

They are usually avoided by predators like birds.
They are usually avoided by predators like birds.

The caterpillars only eat milkweed plants.
The caterpillars only eat milkweed plants.

The adults pollinate flowers.

The trait that makes the monarch butterfly a specialist is:

The caterpillars only eat milkweed plants.

This specialization means that the caterpillars have a specific dietary requirement, relying exclusively on milkweed for food, which distinguishes them from generalist species that can feed on a wider variety of plants.