WorksheetsEcosystem Interactions
Total questions: 18
Worksheet time: 7mins
Name
Class
Date
1.
Which example shows a relationship between a living thing and a non-living thing?
a)
An insect is food for salmon.
b)
Water carries a rock downstream.
c)
A tree gets nutrients from the soil.
d)
A flower makes food for a butterfly.
2.
Mushrooms are helping to break down the remains of a rotting log in the forest. how do the actions of the mushrooms benefit the other plants in the area?
a)
By returning nutrients to the soil.
b)
By releasing oxygen into the air.
c)
By making space for new animals.
d)
By decreasing the population of herbivores.
3.
Which fact below describes one way the bowerbird changes its environment to meet its needs?
a)
Bowerbirds live in tropical regions of Australia.
b)
Females lay 1-2 eggs that hatch in about 20 days.
c)
The diet of bowerbirds consists of fruits and flowers.
d)
Males design amazing, large nests with colored objects in them to attract females.
4.
A small gray moth goes through a larva stage. The larva lives inside a seed capsule. The larva move around to get to parts of the seed it can eat and to reach shade. Which statement below describes an interaction that is important for the plant to survive but could be harmful for the larva?
a)
Absorbing sunlight to make food.
b)
Larva moving inside the seed.
c)
Absorbing water through the roots.
d)
Larva using seed for food.
5.
There are areas in the oceans that are called dead zones. These areas do not have enough air for living things to survive. Marine life in these areas either die or leave. Areas that would normally have many organisms become underwater deserts instead. The immediate problem that causes living things to leave the area is....
a)
They do not have water to survive.
b)
They do not have air to survive.
c)
They do not have nutrients to survive.
d)
They do not have plants to survive.
6.
Mud wallows in Africa are very important to animals. In fact, animals will sometimes fight over these mud wallows. Mud wallows are important to animals in areas of Africa that are hot and dry. Why are mud wallows so important to animals in Africa?
a)
They give them a place for shelter.
b)
They give them a place to interact with other animals.
c)
They give them a place to stay warm and to get energy from the Sun.
d)
They give them a place to stay cool and get out of the Sun.
7.
The African clawed frog has moist skin and is found in murky ponds and other wet environments. When the dry season starts, the frog burrows into the mud to remain moist. It stays in the burrow without eating or moving until rainfall returns. How does the African clawed frog use factors in its environment to survive?
a)
Basking on rocks in the sunlight.
b)
Creating burrows that help fish in water.
c)
Burrowing in mud when it is dry.
d)
Adding moisture to the soil or mud.
8.
Which of the following is a question that could be asked in a scientific investigation of how organisms interact in their environment to survive?
a)
What is the effect of rainfall on the growth of grasses?
b)
What time of day has the most precipitation?
c)
how does temperature affect the formation of soil?
d)
How fast does water move different types of rock?
9.
All of the following are examples of living things interacting with each other EXCEPT---
a)
birds using trees as a place to raise young.
b)
squirrels spreading the seeds of trees by burying them.
c)
fish usingaquatic plants to lay their eggs.
d)
frogs burrowing in the mud at the bottom of a pond to stay warm.
10.
Beavers cut down some trees in a forest and build dams in streams to make ponds. What is the GREATEST change for plants and other animals when beavers make dams?
a)
ferns grow next to beaver ponds
b)
deer do not find food as easily
c)
woodpeckers have more homes in trees
d)
trees die from flooding where the ponds are now located
11.
Prairie dogs build their homes by digging tunnels underground. sometimes, when they leave, other animals use these areas for shelter. which of the following environmental conditions would best meet the needs of a prairie dog?
a)
Cool temperatures
b)
Limited sunlight
c)
Soft, loose soil
d)
Few plants and trees
12.
Some plants have seedpods that stick to animal fur. Why is this kind of seedpod helpful to plants?
a)
the seedpods get food from animal fur.
b)
The seedpods are kept warm by animal fur.
c)
The animal carries the seedpods to an area where a new plant has space to grow.
d)
The animal helps the seedpods mix with pollen from another plant.
13.
Pupfish have been living in a saltwater lake for thousands of years. over time, the lake has been slowly getting smaller. Which of the following is most likely to happen as a result of the lake shrinking?
a)
There will be more pupfish because there will be plenty of space for them.
b)
There will be fewer pupfish because there will not be enough space for them.
c)
The lake will become saltier because more pupfish will grow.
d)
The lake will become less salty because fewer pupfish will grow.
14.
Which fact below about the Painted Redstart bird best describes the way the bird changes its environment to meet its need?
a)
It builds its nest on hillsides covered with dense vegetation.
b)
It usually raises one group of young each year.
c)
It hunts for insects and spiders on plant leaves.
d)
It feeds on sugar water and peanut butter at feeders.
15.
Which fact below is an example of the fiddler crab changing its environment to meet its need?
a)
It moves sideways.
b)
It digs burrows in the ground to hide.
c)
It sheds its shells as it grows.
d)
All of the above.
16.
Which of the following organisms have the greatest effect on an ecosystem because of the changes they make to their environment?
a)
Bees building a hive in a hollow tree.
b)
Wasps building a nest in a leafy bush.
c)
Beavers building a dam across a stream.
d)
They all have the same impact on the environment.
17.
All the ponds in an area dried up during a drought. Which organism is most affected by the drought?
a)
deer
b)
frog
c)
hawk
d)
snake
18.
Coral make hard outer skeletons to protect their bodies. Over time, these outer skeletons can build up to make large coral reefs. How does the formation of a coral reef change the ocean ecosystem?
a)
It make the ocean water saltier.
b)
It removes sand from the ocean floor.
c)
it creates a habitat for some ocean animals.
d)
It takes away space for other animals' habitats.
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