How would a reduction in the number of producers in an ecosystem affect the consumers?

Fewer producers in an ecosystem means less energy

Which is a difference between abiotic and biotic factors?

Abiotic factors are not alive and biotic factors are alive.

Which best describes what makes one ecosystem different from another?

amount of sunlight, rainfall, temperature, and species types

Which is a difference between the plant life of a rainforest and a deciduous forest?

Deciduous has seasons. Rainforest shot and wet year round

Which best describes the role of a first-level consumer in an ecosystem?

First level consumers eat producers.

Which best describes a producer?

a plant that makes its own food

How is it possible for single-celled organisms to survive?

They have all of their needs met within one cell.

Which best explains how organisms in an overpopulated community interact with each other?

They compete with each other for food and survival.

Which is an example of a function the muscular system performs?

Smooth muscles help move food through organs they surround.

How are multicellular and unicellular organisms different?

Multicellular organisms have more than 1 cell and are small

How are consumers and decomposers related?

Consumers provide nutrients for decomposers.

Why are wild animals like deer and coyotes found in large cities and neighborhoods?

Their habitat is decreasing in size.

Which is a possible result of humans destroying habitats?

an increase in the number of endangered species

Which best identifies what is needed for a complete food chain in an ecosystem?

producers, consumers, and decomposers

foxes will decrease. they will only have 1 food source

farmers using excess fertilizers on crops

Which best describes a difference between single-celled organisms and multicellular organisms?

Single celled are simple. Multicellular are complex.

Charles is reading a book about bacteria. Which statement will he read in his book?

Bacteria have one cell that performs many tasks.

Which could be a challenge for a small animal living in a grassland ecosystem?

The flat terrain makes it easy for predators to spot prey.

Which best explains why humans are multicellular organisms?

Humans need many cells to carry out life processes.

Which is the most important effect of decomposers recycling dead plants and animals?

The process adds nutrients to soil.

Some living organisms feed on the remains of dead organisms. Why is this important in nature?

For balance in nature, dead organisms need to be recycled

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Ecosystems and Human Body

41 termsStudBud Administration610 plays

EOG Fifth Grade Science Review

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Questions 41

Answers

1
Which system sends signals to your muscles to cause you to move?
Skeletal
Nervous
Respiratory
Digestive
2
Which body system delivers oxygen for muscle energy? (HINT: THIS IS TRANSPORTING SOMETHING....)
Muscular
Cardiovascular
Skeletal
Respiratory
3
How would a reduction in the number of producers in an ecosystem affect the consumers?
Fewer producers in an ecosystem means more oxygen
Fewer producers in an ecosystem means more nitrogen
Fewer producers in an ecosystem means less energy
Fewer producers in an ecosystem means less carbon dioxide
4
Yumm. I love McDonalds hamburgers, but I also love to eat carrots. What am I?
Carnivore
Omnivore
Decomposer
Herbivore
5
Which is a difference between abiotic and biotic factors?
Abiotic factors are plants and biotic factors are animals.
Abiotic factors are alive and biotic factors are not alive.
Abiotic factors are not alive and biotic factors are alive.
Biotic factors are plants and abiotic factors are animals.
6
Which best describes what makes one ecosystem different from another?
amount of sunlight, rainfall, temperature, and species types
the amount of soil, water, buildings, and humans
the amount of carbon dioxide, oxygen, water, and soil
the amount of animals, oxygen, plant life, and pollution
7
Which system is made of lymph and blood and delivers nutrients and removes waste from the body?
Nervous
Respiratory
Excretory
Circulatory
8
Which best explains why predators need other animals within an ecosystem?
They depend on them for competition.
They depend on them for protection.
They depend on them for food.
They depend on them for water.
9
Which is a difference between the plant life of a rainforest and a deciduous forest?
Deciduous has many plant life. No plants in the rainforest
Deciduous has seasons. Rainforest shot and wet year round
Deciduous has a warm climate. The rainforest is hot/cold.
Deciduous is hot and wet. Rainforest has seasons.
10
Which best describes the role of a first-level consumer in an ecosystem?
They eat decomposers.
They eat other consumers.
They eat scavengers.
First level consumers eat producers.
11
Which best describes a producer?
an organism that gets its energy from plants
a plant that makes its own food
an organism that gets its energy from animals
the sun because it provides energy for plants
12
Which system makes red blood cells?
Muscular
Circulatory
Respiratory
Skeletal
13
Which would be best for organisms that can adapt to both salt water and fresh water?
estuary
pond
river
lake
14
Which two ecosystems are terrestrial?
forests and grasslands
forests and estuaries
oceans and grasslands
ponds and lakes
15
Who is a consumer?
Grass
Moss
Grasshopper
Mushrooooom
16
A crow eats the remains of a dead animal. What type of consumer does this prove the crow to be?
a decomposer
a herbivore
a predator
a scavenger
17
How is it possible for single-celled organisms to survive?
They have adapted to live only in specific environments.
They depend on other cells for food.
They are small and can easily avoid predators.
They have all of their needs met within one cell.
18
Which best explains how organisms in an overpopulated community interact with each other?
They work together to gather food for their community.
They occupy different habitats to avoid overcrowding.
They use fewer resources so there is enough for everyone.
They compete with each other for food and survival.
19
Which is an example of a function the muscular system performs?
Smooth muscles help move food through organs they surround.
Cardiac muscles move bones
Voluntary muscles pump blood through the body.
Skeletal muscles keep a body’s joints working properly.
20
An organism had a. respiratory system, digestive system, skeletal system, and muscular system.
It has no cells
It is multicellular
It is unicellular
It is microscopic
21
How are multicellular and unicellular organisms different?
Multicellular organisms have more than 1 cell and are small
Unicellular have more than 1 cell and are larger
Multicellular have one cell and are larger
Unicellular have more than one cell and are smaller
22
What two systems work together to remove waste from the body?
Digestive and circulatory
Circulatory and Respiratory
Respiratory and digestive
Skeletal and respiratory
23
What is the body's transport system?
Skeletal
Respiratory
Digestive
Circulatory
24
How are consumers and decomposers related?
Decomposers provide food for carnivorous consumers.
Consumers provide nutrients for decomposers.
Consumers change the sun’s energy
Decomposers provide soil for consumers.
25
Why are wild animals like deer and coyotes found in large cities and neighborhoods?
Their habitat is increasing in size.
They prefer to be near people.
Their habitat is decreasing in size.
They prefer to be near houses.
26
Which is a possible result of humans destroying habitats?
an increase in the number of predators
an increase in available niches
an increase in the number of endangered species
an increase in the number of prey
27
Which best identifies what is needed for a complete food chain in an ecosystem?
decomposers and producers
consumers and producers
consumers, producers, and scavengers
producers, consumers, and decomposers
28
Look here....
foxes will decrease. they will only have 1 food source
Foxes will stay the same because they will eat more rabbits.
foxes will increase because they will eat fewer rabbits.
foxes will decrease because they will be eaten by rabbits.
29
Which lists animals that live in an aquatic ecosystem?
panthers, monkeys, snakes
black bear, deer, vole
ducks, turtles, amphibians
prairie dogs, bison, grasshoppers
30
Read the question...
factories producing smoke that pollutes the air
people throwing garbage near a road
logging companies cutting trees in forests
farmers using excess fertilizers on crops
31
Which best describes a difference between single-celled organisms and multicellular organisms?
Single celled live without water. Multicellular need water
Single celled have many jobs. Multicellular has one job.
Single celled are simple. Multicellular are complex.
Single celled are only found in one environment.
32
Charles is reading a book about bacteria. Which statement will he read in his book?
Bacteria have one cell that performs a single task.
Bacteria have one cell that performs many tasks.
Bacteria have many cells and each performs many tasks.
Bacteria have many cells and each performs a single task.
33
Your trachea is part of your.....
Respiratory System
Circulatory System
Skeletal System
Nervous System
34
Which could be a challenge for a small animal living in a grassland ecosystem?
The extreme temperatures require thick skin and heavy fur.
The flat terrain makes it easy for predators to spot prey.
The frozen ground is too hard to serve as shelter.
The high amounts of precipitation create excess water.
35
My diaphragm above my intestines, inflates and deflates. What system is my diaphragm in?
Digestive
Circulatory
Respiratory
Skeletal
36
Which group of organisms eats other living things in order to survive?
Producer
Decomposer
Consumer
Scavenger
37
Which best explains why humans are multicellular organisms?
Human cells join together to form one large cell.
Humans need many cells to carry out life processes.
Humans have many systems that perform the same function.
Human cells are too small to function alone.
38
Which is the most important effect of decomposers recycling dead plants and animals?
The process removes objects from Earth.
The process prevents bad odors.
The process adds nutrients to soil.
The process produces food for consumers.
39
Which ecosystem has the greatest biodiversity?
Lake
Ocean
Desert
Grassland
40
Some living organisms feed on the remains of dead organisms. Why is this important in nature?
Dead organisms are needed to provide more oxygen
dead organisms are needed to provide warmth for most plants
For balance in nature, dead organisms need to be recycled
For plants to make their own food, they need the nutrients
41
Koalas mainly eat leaves. What might happen if the koala's food source is completely destroyed?
Koalas may become carnivores.
Koalas may remain in the area.
Koalas may become extinct.
Koalas may change their mating season.

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