Mario
the home of an organism
habitat
all the members of a single type of organism in an ecosystem
population
a living part of an ecosystem
biotic factor
a non-living part of an ecosystem
abiotic factor
the living and nonliving things in an environment and all of their interactions
ecosystem
plants, animals, and bacteria are all ____________ factors.
biotic
Ecology is the study of how biotic and abiotic factors ______.
A. disappear
B. sleep
C. interact
D. grow
C. interact
_____________ is the typical weather pattern in an environment.
climate
Which one is an abiotic factor?
A. light
B. water lily
C. fish
D. dragonfly
A. light
A frog depending on water to lay eggs is an example of a living thing depending on a ______ thing.
A. nonliving
B. floating
C. biotic
D. living
A. nonliving
The size of a community depends on factors such as food, shelter, and ______.
A. light
B. noise
C. color
D. speed
A. light
In warm, moist ecosystems, communities usually ______ communities in cold or dry places.
A. hide from
B. outnumber
C. copy
D. shrink into
B. outnumber
In a pond, bullfrogs, fish, water lilies, and dragonflies are examples of different ______.
A. climates
B. populations
C. communities
D. ecosystems
B. populations
Why might a warm, moist ecosystem have more living things than a dry place?
A. It often has less water and better conditions for life.
B. It often has more water and better conditions for life.
C. It is always colder and has better conditions for life.
D. It has less food and has better conditions for life.
B. It often has more water and better conditions for life.
A frog resting on a lily pad shows that living things can depend on ______.
A. one another
B. only sunlight
C. only rocks
D. weather
A. one another
Which example shows both biotic and abiotic factors interacting?
A. A fish swimming in pond water
B. A rock sitting on the ground
C. A cloud moving in the sky
D. A pencil on a desk
A. A fish swimming in pond water
Which sentence best explains ecology?
A. It is the study of only animals.
B. It is the study of the weather every day.
C. It is the study of how living and nonliving things interact.
D. It is the study of how to build shelters.
C. It is the study of how living and nonliving things interact.
A pond has bullfrogs, fish, water lilies, and dragonflies. How many populations are there?
A. 1
B. 2
C. 3
D. 4
D. 4
Which of these would most likely make a community smaller?
A. plenty of food and shelter
B. enough light and water
C. very little food or shelter
D. warm and moist weather
C. very little food or shelter
Which is the best example of living things depending on one another in a pond ecosystem?
A. A frog eats flies.
B. Water is wet.
C. Sunlight shines on the pond.
D. A rock is under the water.
A. A frog eats flies.
Which sentence best explains why water is important in a pond ecosystem?
A. Water is a biotic factor that is necessary for animals.
B. Water gives living things a place to live, grow, and survive.
C. Water only lets animals swim.
D. Water makes every animal a producer.
B. Water gives living things a place to live, grow, and survive.
Which example shows a living thing depending on a nonliving thing?
A. A dragonfly eats another insect.
B. A water lily needs sunlight to grow.
C. A frog eats flies.
D. A fish escapes from a bigger fish.
B. A water lily needs sunlight to grow.
Why can the number of populations in a pond be more than one?
A. A population means all living and nonliving things together.
B. A pond can only have one population.
C. Only animals can be counted as populations.
D. Each kind of living thing in the pond can be its own population.
D. Each kind of living thing in the pond can be its own population.
Which answer best explains why warm, moist ecosystems often have more living things?
A. They usually provide water, warmth, and better conditions for survival.
B. They have no abiotic factors.
C. They are always dark and dry.
D. They only have one population.
A. They usually provide water, warmth, and better conditions for survival.
Which statement is true about biotic and abiotic factors?
A. Biotic factors are nonliving, and abiotic factors are living.
B. Biotic factors and abiotic factors do not affect each other.
C. Biotic factors are living, and abiotic factors are nonliving.
D. Abiotic factors are only animals.
C. Biotic factors are living, and abiotic factors are nonliving.