Vocabulary
_______ are a living part of an ecosystem, but _______ are a nonliving part of an ecosystem.
Biotic factors and Abiotic factors
They use the energy from the sun during photosynthesis. Ex: wheat, trees, grasses, leaves, etc.
Define terrestrial ecosystem
A land based ecosystem
Define aquatic ecosystem
A water- based ecosystem
True or False:
A parasite kills its host in order to survive.
False.
The amount of salt in a substance
Name the three types of consumers. Give one example of each
Herbivore: deer, cow, caterpillar
Carnivore: lion, spider, alligator
Omnivore: bear, people, pigs
_______ are under the water for at least part of the year.
Wetlands
Name 3 aquatic ecosystems you learned about.
Oceans, lakes and ponds, and estuaries
What will happen to an owl population if the mouse population declines (gets smaller)?
The owl population will decrease because the prey has decreased.
Biotic and abiotic factors in an environment make up an _______________.
Ecosystem
Worms , termites, fungi, and mushrooms are types of ______________.
Decomposers
Which of the following do plants depend on to get nutrients?
- Rain
- Consumers
- Light
- Soil composition
Soil Composition
Which of the three aquatic ecosystems has the most salty water?
Ocean
What is the job of a decomposer?
To eat the remains of dead animals and return nutrients to the soil so that producers may grow.
What is the difference between a population and a community?
A population is all members of one kind of organism that live in a particular area. A community is a group of different populations of organisms
A bear eats a fish. Who is the predator and who is the prey?
Bear - predator
Fish - prey
Name 3 terrestrial ecosystems you learned about
Forests, grasslands, wetlands
The salinity of an estuary depends on the flow of fresh water and ____________.
tides
Termites can be harmful creatures because they eat and destroy wood, but they play an important role in an ecosystem. What role do termites play?
Termites are decomposers.
Explain the difference between a food chain and a food web
A food chain is one link in an ecosystem. A food web is a series of interconnected food chains.
Name an example of a parasite and host situation.
A tick or flea bites a dog. The tick/flea gets a meal, but the dog is harmed and could get sick.
Which of the two terrestrial ecosystems typically have freshwater?
Forests and grasslands
How are estuaries different from lakes, rivers, or oceans?
Estuaries have brackish water, a mix of fresh and salt water.
Resources that limit the size of a population are called limiting factors. Name 4 limiting factors.
Food, water, space, and shelter