Ecology Study Guide

Ecology Study Guide

Answer the questions aobu the ecosystem below.

How do these organisms interact with one another and the nonliving parts of their environment?

What happens if one of the animals were removed?

What is the source of energy in the ecosystem?

Multiple Select

How do these organisms interact with one another and the nonliving parts of their environment? (Choose all that apply)

• Plants like the grass and trees use sunlight, wather, and soil.

• The animals compete for food and water.

• The animals mate and care for their young.

• The organisims need air and water to survive.

Multiple Select

What happens if one of the animals were removed? (choose all that apply)

• There would be no more animals left

• There would be an increase in some of the organisms population

• There would be less competion for resources

• There would be more competition for resources

• There would be no change in the ecosystem

Multiple Choice

What is the sourse of energy in the ecosystem?

• the lion

• the grass

• the river

• the sun

• the air

Multiple Choice

Eats only plants

• carnivore

• herbivore

• omnivore

• decomposer

Multiple Select

Examples of herbivores (choose all that apply)

• cows

• deer

• snakes

• caterpillars

• sharks

Multiple Choice

These are examples of what type of consumer?

snakes, owls, sharks

• herbivoer

• carnivore

• omnivore

• decomposer

Multiple Choice

Carnivores are

• organisms that eat only plants

• organisms that eat only animals

• organisms that eat both plants and animals

• organisms that eat the remains of plants and animals

Multiple Choice

Organims that are omnivores

• eat only plants

• eat only animals

• eat both plants and animals

• eat plants and animal remains

Multiple Select

Some examples of omnivores are

(choose all that apply)

• humans

• worms

• bears

• rabbits

• owls

Multiple Choice

Organisms that eat plants and animal remains are called

• herbivore

• carnivore

• omnivore

• decomposer

Autotrophs

• organisms that use sun-light or energy stored in chemical compounds to make food

Heterotrophs

• Organisms that rely on other organism for their energy

Energy Flow in Ecosystems

• How does eneryg flow through an ecosystem?

• What's the difference between a food web and a food chain?

• Explain the term trophic level

Open Ended

How does erergy flow through an ecosystem?

Multiple Choice

What's the difference between a food web and a food chain?

• A food web shows one possible transfer of energy by eating and being eaten and a food chain shows all possible feeding relationships

• A food web shows all possible feeding relationshiops and a food chain shows which organism transfer of energy by eating and being eaten.

Multiple Choice

What is a trophic level?

• The trophic level is part of the food web.

• The trophic leve is a feeding step of an organism in a food chain

• A trophic level shows all of the feeding relationshiops in an ecosystem

Multiple Choice

In the energy pyramid here, how much of the energy in the producers gets passed to the herbivores?

• 10%
• 20%
• 80%
• 90%

Multiple Choice

The deer, grasshopper, and bird are all examples of which type of consumers on this food pyramid?

• decomposers
• omnivores
• carnivore
• herbivore

Multiple Choice

Which organism recieves the least amount of energy from the producer?

• Owl
• Grasshopper
• Lilypad
• Mouse

Multiple Choice

Position that an organism occupies based on what it eats

• biomass
• autotroph
• trophic level
• carnivore

Multiple Choice

Which trophic level is the Primary consumer? 

• 1
• 2
• 3
• 4

Multiple Choice

The diagram represents a pyramid of energy in an ecosystem.  Which level would most likely contain members of the plant kingdom?

• A
• B
• C
• D

How does the water cycle help plants and animals?

• Water helps make soil rich in nutrients which is great for plant growth. Animals and organisms rely on plants for their survival.

How do plants and animals obtain the nitrogen they need?

• Plants take up nitrogen commpounds through thier roots. Animals obtain these compounds when they eat plants.l When plant and animals die or when animals excrete wastes, the nitrogen compounds in the organic matter re-enter the soil where they are broken down by microrganisms, known as decomposers.

How do plants and animals help maintain a balance of carbon dioxide in the atmosphere?

• Through the process of photosynthesis, carbon dioxide is pulled from the air to produce food made from carbon for plant growht. Carbon moves from plants to animals through food chains, the carbon that is in plants moves to the animals that eat them.

Multiple Choice

The movement of nitrogen between the environment and living things

• Water cycle
• Carbon cycle
• Nitrogen cycle

Multiple Choice

The exchange of carbon between the environment and living things

• Nitrogen cycle
• Carbon cycle
• Water cycle

Multiple Choice

The movement of water between the oceans, atmosphere, land, and  living things

• Nitrogen cycle
• Carbon cycle
• Water cycle
• Air cycle

Multiple Choice

Which of the following is represented by this picture?

• the water cycle

• the carbon cycle

• the nitrogen cycle

• the hydrogen cycle

Multiple Choice

Which of the following is represented in this picture?

• the water cycle

• the carbon cycle

• the nitrogen cycle

• the hydrogen cycle

Multiple Choice

Which of the following is represented in this picture?

• the water cycle

• the carbon cycle

• the nitrogen cycle

• the hydrogen cycle