Healthy and Unhealthy Ecosystems
What kind of balance do ecosystems have?
Delicate
Humans change ecosystems in mainly what kind of way?
Negative
What is it called when an animal moves to a warmer climate for the winter months? What is called if they go into a DEEP sleep for the winter months?
Migration
Hibernation
Humans affect ecosystems in mainly what kind of way?
Negative
True or False:
Once an ecosystem is destroyed, it CAN be brought back.
True
An animal that captures and eats other animals is called a ___________. The animal that gets eaten is called ________.
Predator- captures and eats
Pray- gets captured and eaten.
What is an event that changes an ecosystem for a LONG period of time called?
Disturbance
________ ecosystems experience a drastic change in temperature each season.
Temperate
Air pollution is mainly caused by what two things?
Cars and factories
Plant leaves fall off to prevent damage and to limit _______ loss during the winter months.
Water
What happens if there are too few predators? Why would that cause harm to an ecosystem?
Pray numbers can increase. This can cause more producers to be eaten if that pray eats other animals then that animal will decrease.
What is succession?
The SLOW process of an ecosystem rebuilding itself.
During winter, plants are ________, which means there are in a state of rest.
Dormant
Anything that humans add that causes harm to an environment is called _________.
Pollution
During the winter, plants first stop ______ and making ________. They do this to save _______.
Growing, food and energy.
What can happen if there are too few prey? What would this cause harm to an ecosystem?
Predators can decrease or starve. If the predators of the ecosystem starve, then their species can become endangered or extinct.
What are natural changes? Give me 2 examples.
A change in an ecosystem that humans to NOT create.
How is an animal able to hiberante all winter long without food or water?
They slow their process of energy WAY down.
______ good wee need or want are either made by or produced from natural resources.
ALL/100%
What are 2 ways we as humans can help restore ecosystems?
Recycle, reuse, limit natural resources, plant trees, pick up litter...
What could happen to an ecosystem if a first-stage consumer were to decrease significantly in number? Give me at least two things that could occur.
Producers could greatly increase.
Second-stage consumers could decrease if the first-stage consumer is a food source.
What is the order of which organisms come back in succession?
1- plants/pioneer plants
2- First stage consumers/pioneer consumers
3- Second stage on up consumsers
4- Climax species (long lived plants)
Animals migrate or hibernate during the winter because...
It is hard to find food, water and shelter
How does a growing human populaton cause ecosystems harm?
clearing of land for living space (trees cut down, wetlands filled in), more natural resources used.
Some ecosystems closer to the _______ have ________ and _________ seasons.
equator, wet/rainy and dry.