F
Fossils of a dinosaur head and teeth were recently discovered. The huge mouth and teeth are similar to the shape of an alligator's mouth and teeth. What does this tell us about the dinosaur?
A. This dinosaur lived in water and had a long tail.
B. This dinosaur was a brownish-green color, like the alligator.
C. This dinosaur was a carnivore or meat-eater.
D. This dinosaur was an herbivore or plant-eater.
__________ extinct species look similar to organisms that live on Earth today.
A. Some
B. No
C. All
D. none of the above
Which statement is true about fossils?
A. They are remains of non-living things.
B. Only plants can make fossils.
C. Only animals can make fossils.
D. Some fossils can only be seen under a microscope.
Which of the following is not a fossil?
A. a footprint in rock
B. a preserved bone
C. a shell from a prehistoric animal
D. a drawing of a dinosaur
Scientists put dinosaur bones under a microscope and found fossils of fungi among the bones. What does this say about the size of the fungi fossils?
A. The fungi fossils were larger than the dinosaur fossils.
B. The fungi fossils were too small to be seen with the naked eye.
C. The fungi was the same size as the dinosaur bones.
D. The dinosaur fossils were too small to be seen with the naked eye.
__________ can lead to extinction by changing the conditions of the species' environment so much that the species cannot survive.
A. Habitat degradation
B. Cloning
C. Genetic factors
D. Disease
What do you know about what made any given fossil?
A. It is not an organism.
B. It lived a long time ago.
C. It is currently alive today.
D. None of the above
Fossils provide evidence __________.
A. that dinosaurs existed
B. of animals that existed a long time ago
C. of the size and features of wooly mammoths
D. all of the above
Which statement is true about dinosaurs?
A. There are many dinosaur species living on Earth today.
B. The last dinosaur died about 100 years ago.
C. There is only one type of dinosaur left on Earth.
D. All dinosaurs are extinct.
Which statement is true?
A. Plants and animals can become fossils.
B. Only animals can become fossils.
C. Only plants can become fossils.
D. Nonliving things can become fossils.
What will happen if a dam is built on a river near a forest?
A. Only animals will lose their shelter.
B. Only plants will decrease in number.
C. Both plants and animals will not be affected.
D. Both plants and animals will decrease in number.
Fossil evidence provides clues about how Earth's landscape has __________ over time.
A. disappeared
B. stabilized
C. changed
D. shrunk
How do scientists explain finding a marine fossil on dry land?
A. The area used to be covered with water.
B. The area will soon be covered by water.
C. Marine fossils usually float to dry land.
D. Most lands have large numbers of different kinds of fossils.
What can we conclude about the species of fish found in a fossil?
A. This fish species lived on Earth long ago.
B. This fish species still lives on Earth today.
C. This fish species is extinct.
D. This fish species will be alive on Earth in the future.
Triceratops are a type of plant-eating dinosaur. Which sentence best describes triceratops?
A. They are endangered.
B. They are extinct.
C. They are living on Earth today.
D. all of the above
The Hawaiian Islands were once isolated and uninhabited by man. When man arrived, there were 100 species of native birds on the islands. Since that time, 60 of these species have become extinct. What major factor most likely contributed to these extinctions?
A. continental drift
B. volcanic eruptions
C. human impact
D. meteorite collision
A dodo is an extinct species of bird. Dodos looked __________.
A. similar to some types of birds that are alive today
B. exactly like pigeons we see today
C. nothing like any animal alive on Earth today
D. No one has any idea what any extinct animals looked like.
Why would a fossil of a tropical plant be found in an Arctic area?
A. The climate is beginning to change.
B. Long ago, the area had a tropical climate.
C. Tropical plants can grow in cold areas.
D. None of the above.
Geologists think that long ago, the landscape of Antarctica could have looked much greener because __________.
A. they found fossil evidence of tropical plants there
B. trees can survive polar climates
C. Earth used to be much closer to the sun thousands of years ago
D. ice can trap heat
A scientist finds a fossil. It is a clue to what life was like __________.
A. yesterday
B. last week
C. last month
D. a long time ago
Which of the following options would NOT contribute to a species becoming extinct?
A. habitat destruction
B. the introduction of exotic species
C. an erupting volcano
D. migration of Canadian geese
Which of the following does NOT become a fossil?
A. fish
B. bear
C. rock
D. fern
Which of these organisms leaves a fossil that can only be seen with a microscope?
A. dinosaurs
B. saber-tooth tigers
C. bacteria
D. trees
Which of the following would a scientist study to learn about the prehistoric environment?
A. fossils
B. annual weather patterns
C. changes in human population
D. all of the above
The bone structure of modern birds look very similar to the bone structure of dinosaurs. Dinosaurs are extinct. This means that __________.
A. modern birds are probably related to dinosaurs
B. both dinosaurs and birds are still alive today.
C. all birds are extinct
D. all birds will die off soon.