Food Chains
Food Webs
Ecosystems
Relationships in Ecosystems
Invasive Species
100
organisms that are able to make their own food are called_______________
Producers
100
Organisms in food webs can have more than one role. For example, some organisms could be both secondary and tertiary consumers. True or False
True
100
Things that are living in an ecosystem are considered____________
Biotic Factors
100
Why do organisms compete in an ecosystem?
Because resources are limited, such as food, water, space and mates
100
What is an invasive species?
a non native species that has been introduced to a new area and causes harm to the ecosystem.
200
Plants create food using energy from ____________ in a process called ____________ .
Sunlight; Photosynthesis
200
An organism that feeds on primary consumers
Secondary Consumer
200
A stargazer fish preys on other small fish and is hunted by larger fish. It often buries itself in sand, while its upward-pointing eyes keep watch.
Give two reasons why sand is an important part of the stargazer's ecosystem.
providing shelter from predators
providing a hiding place from which to attack its prey
providing camouflage, given that the sand is a similar color to its body
200
What type of symbiotic relationship does relationship A represent?
Commensal
200
Only animal species can be invasive. True or False
False
300
Sharks are examples of ________________ in a food chain.
Apex Predators
300
What is the role of a worm in the forest ecosystem?
They are detritivores; eat dead matter
300
Name 2 abiotic factors in a forest ecosystem
Rocks
Dirt
water
300
What type of symbiotic relationship does relationship B represent?
Mutualistic
300
If a domestic cat is brought to a country it is non native to, on purpose, and kills native species to that country, is the cat still considered an invasive species?
yes
400
How do consumers get their energy?
Consuming other organisms
400
There can only be one producer in a food web. True or False
False
400
Define an ecosystem
a collection of living things interacting with other living things.
400
What type of symbiotic relationship does relationship C represent?
Parasitic
400
Brown tree snakes caused 10 out of the 11 native bird species in Guam to go extinct. Identify what this example would be a loss of.:
A. Biodiversity
B. Habitat
C. Vegetation
A
500
Organisms, such as fungi and bacteria, that release chemicals to break down dead matter are called_________
Decomposers
500
What would happen to the elk population if the rabbit population were to be removed?
The wolves and cougar would only have elk to prey on, therefore they would decrease in population.
500
Temperature and precipitation are both examples of:
Abiotic factors
500
Determine which of the following are examples of competition.
A. Carrots and potatoes grow next to each other in the same garden
B. Two male rhinos fight for a mate
C. Ten zebras graze on grass in the same open plain
D. A shark eats a fish
A,B,C
500
Lichen is made up of two separate organisms, fungi and algae. The fungi provide protection and absorb water. The algae provide food to the fungi.
Suggest 2 things that would happen to the lichen if the fungi were removed from the ecosystem.
1. If the fungi were removed, the algae would lose its protection and the help the fungi provide in absorbing water
2. Both organisms would die because they need each other.