Life Science Review Trivia

Energy Flow

1

How does energy move through a food chain?

By being eaten

1

What is the primary source of energy in any food chain?

The sun

2

What is an example of  an apex predator in an oceanic ecosystem?

Orca

2

What is an example of a primary consumer in an arctic food web?

krill

3

How much are the kcals divided by per level of the trophic chain?

10%

Trophic Levels

1

What organisms are usually after the first trophic level?

Primary consumers

1

What organisms are usually at the bottom of a trophic chain?

Plants

2

Another name for producers or plants 

Autotrophs

2

What are the top consumers called?

Apex Predators

3

Which animals have a larger population, producers, primary consumers, secondary consumers, tertiary consumers, or apex predators?

Primary consumers (herbivores)

Food Webs

1

State the difference between an omnivore and a herbivore.

An omnivore eats meat and plants; whereas a herbivore only eats plants. 

1

What is a food web?

A food web is a graphic representation of how animals acquire and make food. [It can be something similar]

2

In the following food chain, what position is the fox?

berries -> rabbit -> fox -> bear 

secondary consumer 

2

What’s the definition of a food web?

A system of interlocking and interdependent food chains.

3

How would the shark population be affected by a significant decrease in the phytoplankton population?

Something similar to: the sharks eat fish that rely on phytoplankton-consuming animals. So it would affected them greatly but indirectly.

Energy Pyramid

1

What is the definition of an energy pyramid?

An energy pyramid is a model showing how energy flows through an ecosystem with a large base for producers and smaller level consumers. [It can be something similar]

1

How many levels are in an energy pyramid?

4-5

2

What is the name of the highest level on an energy pyramid?

Quantiary/Apex Predators

2

Make an energy pyramid [on a piece of paper].

A working energy pyramid with at least one of the following biomass equations, decomposition marked, or filled in levels.

3

What is the equation to calculate the energy stored as biomass?

kcal/m²/yr

Photosynthesis

1

What do plants produce after photosynthesis

Oxygen and glucose

1

Do plants need soil for photosynthesis

No

2

What process makes glucose for plants?

Photosynthesis

2

What do plants need for photosynthesis?

co2,water,sunlight

3

Two examples of decomposers:

Three of the following:

bacteria, worms, mushrooms, fungi