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WorksheetsChanges affect organisms
Total questions: 15
Worksheet time: 18mins
Invasive plants compete with native plants for --- [choose 3]
sunlight
water
oxygen
space
People can change ecosystem in a helping way by.................................
planting
Erosion
Natural disasters can change the ecosystem.
True
False
.............................. is an organism that is introduced into a new ecosystem either by accident or on purpose by human.
Invasive Species
Native species
An environment can be changed by _____, which washes away soil and plants.
A farmer accidentally planted seeds of an invasive species in his field. How is the plant harmful to the environment?
It can grow slowly.
It will not harm the environment.
It blocks sunlight and takes nutrients that native plants need.
It is preferred by gardeners over native plants.
An ______ includes all living and nonliving things together in an area.
population
ecosystem
consumers
producers
A fire destroys all of the trees and plants in the forest. How might this affect the birds in the area?
The birds will plant seeds and grow new trees.
The birds will have more food to eat.
The birds will plant seeds and grow new trees.
The birds will have no place to build their homes.
An organism that is introduced into a new ecosystem either by accident or on purpose by humans is.....
extinct
invasive species
adapting
a predator
Trees give off __________ that animals need to survive.
carbon dioxide
sunlight
oxygen
Animals give plants carbon dioxide to make food
true
false
Planting trees is a
Harmful change
Helpful change
If a drought happens, what changes can happen
New plants grow
Plants will die
Bacteria and mushrooms can make
Big change
small change
The tree take the water from the soil is
small change
big change
