Definitions 👍
What is the definition of mutualism?
a relationship between organisms where both benefit.
Which of the following is an abiotic resource?
1. Food
2. Sunlight
3. Tree
Sunlight is the correct answer
When two or more individuals or populations attempt to obtain a single resource?
Competitive Interaction
In an ecosystem, what do organisms and populations with similar needs compete over?
1. Water
2 Food
3 Shelter
4. All of the above
All of the above
Plants compete for air, water, ________ within ecosystems.
Sunlight
What is the definition of parasitism?
a relationship which one organism lives on a host and harms the host but the organism living on the host is benefited.
Which of the following is a biotic factor.
1. Sunlight
2. Water
3. Grass
Grass
In a certain ecosystem, foxes and snakes prey on the same rabbits. What would increase the competition between the foxes and snakes?
A reduction in the rabbit population
Two species of fish live in the same pond. What would increase competition between these two species of fish?
Water levels deacreasing
Environments include both _____ and _____ things.
Living:nonliving
a relationship which one organism benefits and the other organism is neither harmed nor benefited.
Which of the following would an owl eat?
1. rocks
2. Mice
3. Sunlight
2
Which of the following factors is NOT abiotic?
Seaweed
sand
sunlight
water
seaweed
A system made up of all the biotic and abiotic factors in an area and all the interactions among them.
ecosystem
If animals in an ecosystem have the same _____ competition ________
niches;increases
What is the definition of predation?
a relationship between 2 different species one is prey other is predator.
Which of the following would compete for a habitat in a tree? CHOOSE TWO
1. Owl
2. Woodpecker
3 Cow
4. Lion
1, 2
Hawks and owls have the same niche and struggle with each other to get it. What is this an example of?
Competition
A group of individuals from the same species living and interacting together in the same ecosystem is called a
population
Competition becomes more important as the number of individuals ______ or the availability of resources _________.
Increases:deacreases
What is a food web?
All of the food chains in an ecosystem
Which of the following is an example of mutualism?
1. A tick latches on to a cat and sucks it’s blood.
2. A large animal leaving some of its food behind for another small animal to eat it.
3. A fish eating parasites off of a sharks body
3
A student wants to investigate competition between two organisms. For the investigation, it is most important that the student should choose organisms that –
Ecosystems depend on organisms to ________ with each other to maintain stability
interact
Living things depend on many different _________ in order to survive.
Resources