Question

Answer the following questions based on page 3 (the Overview) and the information you have learned in this unit.

What role do producers play in a food web?

(1 point)
Responses

They consume other organisms for nutrients.
They consume other organisms for nutrients.

They make their own food and provide energy for other organisms.
They make their own food and provide energy for other organisms.

They decompose dead material.
They decompose dead material.

They are the top predators in a food web.
They are the top predators in a food web.
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page 8 of 8

Answer 1

ok? pick one

Answer 2

Which of the following correctly describes the sequence of energy transfer in a food web?(1 point)
Responses

Primary consumers → Producers → Secondary consumers → Tertiary consumers
Primary consumers → Producers → Secondary consumers → Tertiary consumers

Producers → Secondary consumers → Primary consumers → Tertiary consumers
Producers → Secondary consumers → Primary consumers → Tertiary consumers

Producers → Primary consumers → Secondary consumers → Tertiary consumers
Producers → Primary consumers → Secondary consumers → Tertiary consumers

Tertiary consumers → Secondary consumers → Primary consumers → Producers
Tertiary consumers → Secondary consumers → Primary consumers → Producers

Answer 3

In a food web, which type of organism is likely to be both a secondary consumer and a primary consumer?(1 point)
Responses

Producer
Producer

Herbivore
Herbivore

Omnivore
Omnivore

Carnivore

Answer 4

How does the interconnection of food chains in a food web contribute to the stability of an ecosystem?(1 point)
Responses

It ensures that only one species is responsible for each trophic level.
It ensures that only one species is responsible for each trophic level.

It allows multiple organisms to share the same food source, providing alternative food options if one source is depleted.
It allows multiple organisms to share the same food source, providing alternative food options if one source is depleted.

It limits the number of organisms that can occupy each trophic level.
It limits the number of organisms that can occupy each trophic level.

It increases competition among species, leading to a decrease in population sizes.

Answer 5

If a primary consumer population decreases significantly in a freshwater ecosystem, what is the most likely immediate impact on the secondary consumers?(1 point)
Responses

They will increase in number due to less competition.
They will increase in number due to less competition.

They will migrate to find new food sources.
They will migrate to find new food sources.

They will decrease in number due to a lack of food.
They will decrease in number due to a lack of food.

They will switch to being primary consumers.

Answer 6

Producers play the role of making their own food and providing energy for other organisms in a food web. This means they are essential for the flow of energy through the ecosystem, serving as the primary source of energy for consumers (herbivores, carnivores, and omnivores).

Answer 7

They make their own food and provide energy for other organisms.

Answer 8

The correct sequence of energy transfer in a food web is:

**Producers → Primary consumers → Secondary consumers → Tertiary consumers.**

Answer 9

The type of organism that is likely to be both a secondary consumer and a primary consumer is an **omnivore**.

Answer 10

The correct response is:

**It allows multiple organisms to share the same food source, providing alternative food options if one source is depleted.**

This interconnection helps contribute to the stability of an ecosystem by allowing for flexibility and resilience in the face of changes or disruptions.

Answer 11

The most likely immediate impact on the secondary consumers if a primary consumer population decreases significantly in a freshwater ecosystem is:

**They will decrease in number due to a lack of food.**