Science
Science
Science
Science
Science
100
Population
Consists of one species of plant or animal (population of ducks)
100
Aquatic
water ecosystems (estuary, ocean, lake, pond)
100
Omnivore
organisms that eat plants and meat
100
Decomposer
organisms that break down dead matter and return nutrients to the soil.
100
The diagram shows the food chain of a region of the Pacific Ocean.
A sudden increase in the number of sea urchins was seen in the region. What suggestion will help identify the cause of the change?
Examine if the sea kelp population has decreased.
Examine if the sea otter population has decreased.
Examine if some new herbivore has moved into the region.
Examine if some new decomposer has moved into the region
Examine if the sea otter population has decreased. (Correct Answer)
200
Community
Consists of all species’ of plants and animals in an ecosystem
200
Terrestrial
land ecosystems (forest, grasslands)
200
Producer
(Plants) organisms that can make their own food (photosynthesis)
200
Niche
an organism’s role or “job” in an ecosystem
200
Which BEST describes how earthworms improve soil as they eat dead plant material?
A. They make the soil clean.
B. They keep disease out of the soil.
C. They recycle nutrients into the soil.
D. They remove extra water from the soil.
C. They recycle nutrients into the soil.
300
Ecosystem
community of the abiotic and biotic organisms interacting in their environment
300
Estuary
coastal body of water where fresh water and salt water meet
300
Predator
hunts for food
300
Limiting Factor
a factor that limits a population’s size or changes an ecosystem
300
A grassland food chain is shown. What would happen first to the grasshopper population if the frog population disappeared due to disease?
The grasshopper population would decrease.
The grasshopper population would increase.
The grasshopper population would remain the same.
The grasshopper population would migrate to a new environment
The grasshopper population would increase.
400
Abiotic factors
nonliving (soil/sunlight)
400
Herbivore
organisms that eat vegetation (plants)
400
prey
hunted by other animals
400
Food Chain/Web
show the flow of energy from one organism to another
400
A group of frogs live together near a small pond. The frogs compete with each other MOST for which resource?
air
insects
plants
Sunlight
Insects
500
Biotic factors
living organisms
500
Carnivore
organisms that eat meat
500
Parasite
organism that lives in or on a host and depends on it for survival.
500
Food Chain Path/Order
Producer-Herbivore-Omnivore/Carnivore/Decomposer
500
A grassland food chain is shown. What would happen first to the grasshopper population if the frog population disappeared due to disease?
The grasshopper population would decrease.
The grasshopper population would increase.
The grasshopper population would remain the same.
The grasshopper population would migrate to a new environment
The grasshopper population would increase.