WorksheetsII GRADED PRACTICE I TRIMESTER
Total questions: 20
Worksheet time: 2hrs 40mins
How can we have a Healthy ecosystem?
There are more predators than prey.
Good conditions such as good weather and more animals to be eaten.
There is a balance between the living and non living things.
It's the gradual change of an ecosystem.
Succession
Pioneers
Biodiversity
What are the two types of succession?
Pioneer Stage and Intermediate Stage.
Primary and Secondary Succession.
Primary and Secondary Pioneer.
What's pioneers?
The first species that appear in a new environment.
The last stage that has more plants and animals in a new environment.
What's an example of a secondary succession?
the environment after a fire.
the environment after a volcano eruption.
It's the way to preserve the environment
Conservation
Endangered Habitats
How can we protect the ecosystem?
Cutting down trees and deforestation.
Reduce, Reuse and Recycle materials.
Plastic production and production of Black Carbon.
What's endangered species?
Organisms that are overpopulated.
Organisms with the risk of dying out.
What are two human activities that destroy the environment?
Plant a tree and shop wisely.
Conservate water and choose sustainable.
Overfishing and Pollution.
Why are forests considered natural filters?
Because they take oxigen and release carbon dioxide.
Because they are the habits of many species that help to conservate the balance.
Because they clean the air by taking carbon dioxide and release oxygen.
It describes the interaction between two organisms living together in an ecosystem.
Parasitism
Symbiosis
Mutualism
It's a relationship between two organisms that benefit one organism and harms the other.
Mutualism
Commensalism
Parasitism
What can be an example of a Parasitism?
Ticks and Fleas living on animals.
A bird making a nest in a tree.
bacteria live in the digestive system of cows
It's a relationship in which one organism benefits and the other organism is not harmed.
Parasitism
Commensalism
Mutualism
It's a relationship between two organisms that benefit from their interaction
Parasitism
Commensalism
Mutualism
How can humans best help an endangered species avoid extinction?
they can feed the animals
they can put the animals in a zoo
they can protect the animal’s habitat
they can take the animal to new habitats
Why is biodiversity so important?
Because all species depend on each other to survive, so if one becomes extinct another species that relies on it could go extinct as well
Because it’s better to have only one variation of each species.
Because it better to only have a few species on Earth.
Honestly, I have no idea what biodiversity is!
What factor does NOT affect biodiversity?
Urbanization
Planting Native Plants
Overfishing
Pollution
In what way are humans most impacting the biodiversity of ecosystems around the world?
We are putting too many organisms in zoos or keeping them as pets
We are increasing biodiversity by breeding new species
We are destroying the habitats of a large number of species
Recreational hunting
What does biodiversity mean?
Only one species in an area.
The different amount of species in an area
All abiotic life
Nitrogen fixation
