Plant Adapatations
True or false?
Tropisms are caused by a chemical in plants?
True
True or false?
Fish obtain oxygen through the use of lungs.
False
Humans often cut down forests for wood. How does this most likely affect forest animals?
a. It changes their habitat.
b. It increases their numbers.
c. It makes their habitat larger.
d. It increases their resources.
a. It changes their habitat.
Yes or no?
Can humans help prevent extinction?
Yes.
Some dinosaur fossils have structures that look like wings. What might you infer about these kinds of animals?
a. They were larger.
b. They could fly.
c. They ate fish.
d. They lived in water.
b. They could fly.
True or false?
Plants respond to light by growing away from the source of it.
False
During cold winters, some animals survive by:
a. hibernating
b. imitating other animals
c. saving water
d. shedding their fur
a. hibernating
Species that are more sensitive to pollution than others are called _______ species.
a. overly sensitive
b. indicator
c. endangered
d. extinct
b. indicator
If not enough is done for a species that is endangered, then it may________.
a. change its food source
b. find a new place to live
c. adapt to a new ecosystem
d. become extinct
d. become extinct
Mount St. Helens is a _________ in the state of Washington.
volcano
A cactus has soft tissues that _________.
a.) absorb extra sunlight
b.) protect it from predators
c.) hold water like a sponge
d.) are a home for small organisms
c.) hold water like a sponge
To keep out sand.
What is LEAST likely to occur when an ecosystem changes?
a. Some organisms will die.
b. Some animals will leave.
c. All of the organisms will adapt to the change.
d. The land may benefit from the change.
c. All organisms will adapt to the change.
Some dinosaur fossils have structures that look like wings. What might you infer about these animals?
a. They were larger
b. They could fly
c. They ate fish
d. They lived in water
b. They could fly
A _______ is any evidence of living things from the past.
fossil
A _________ is something in an environment that causes living things to respond.
stimulus
Which of the following is an example of mimicry?
a. a skunk using a strong odor to scare away predators
b. a nonthreatening snake that looks like another more poisonous snake
c. a lizard that changes color to blend in with its environment
d. a giraffe with a long neck to reach high leaves
b. a nonthreatening snake that looks like another more poisonous snake
Can organisms be used as resources for humans? How?
Yes; we can use them for food, clothing and shelter.
________ species have few of their kind left alive.
Endangered
Dinosaurs became extinct due to environmental factors of nature. Endangered animals of today are mostly the result of ___________.
a. the actions and behavior of people
b. being killed by their natural predators
c. sudden changes in the weather
d. their natural ability to adapt
a. the actions and behavior of people
Which word describes a plant's response to its environment?
Tropism
____________ is movement from place to place.
Locomotion
Adding harmful things to the air, water or land is _________.
Can humans help prevent extinction? How?
Yes; through preserving habitats, using resources wisely, etc.
Dinosaurs, like the Edmontosaurus, have been extinct for ___ million years.
65