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Changes Over Time
Test Description: Changes over time
Instructions: Answer all questions to get your test result.
1) Darwin observed many different species of finches on the Galapagos Islands. What did Darwin conclude about finches?
A
They all came from different countries and continents
B
They developed from other types of organisms
C
They evolved from a common ancestor on the mainland.
D
They evolved from many different types of birds
2) Which statement best describes the process of evolution?
A
Environmental conditions limit the number of species on Earth.
B
Populations can survive in different locations on Earth
C
Populations grow when resources are abundant
D
The traits of species can change over time
3) Why did the population of peppered moths in England change from light to dark after the Industrial Revolution?
A
Dark moths were killed by the industrial process.
B
The birds that ate the dark moths were killed by the soot.
C
Light moths were easy to see against the sooty trees and were eaten.
D
Light moths were killed by soot
4) Modern whales developed their traits through natural selection. What occurs during the process of natural selection?
A
Only the fittest organisms can survive and reproduce.
B
Breeders selectively cross organisms with desired traits
C
Organisms choose mates from other species to create a new species
D
Organisms remain exactly the same over time
5) Which of these would be considered an adaptation of an animal that lives in a snowy tundra?
A
large, flat feet
B
A thick coat of fur and blubber
C
green colored skin
D
webbed feet
6) Which bird is best adapted to live in a watery environment?
A
A bird with short, fat legs and large claws on their feet
B
A bird with short legs and short skinny toes
C
A bird with long skinny legs and three thick toes with claws
D
A bird with short legs and large webbed feet
7) Paleontologist is trying to determine the ages of several fossils using different methods. When using carbon dating, the main problem is:
A
It can't determine the age of really old fossils
B
It can only be used at night
C
It works on living organisms only
D
It can only be used to date animals fossils
8) Which of the items is most likely to be preserved as a fossil?
A
A flower
B
blood
C
a tooth
D
Hair or fur
9) Most fossils form in:
A
Sedimentary rock
B
Anthropomorphic rock
C
Metamorphic rock
D
Igneous rock
10) What does the fossil record tell scientists?
A
Species have evolved over time
B
Only dinosaurs have formed the fossils scientists have discovered
C
There are very few organisms that are extinct
D
Birds have dominated the Earth for most of history
11) Over many generations, populations of anteaters have developed longer tongues. Why might such occur?
A
Anteaters with longer tongues can reach food sources that other animals cannot reach
B
Anteaters with longer tongues require more food than those with shorter tongues
C
Humans find long tongues more attractive in anteaters
D
Longer tongues help anteaters escape from predators
12) Darwin observed and recorded data about many species of finches. According to Darwin, how did the food source on each island affect how the birds evolved?
A
Birds brought their favorite food with them to the island.
B
Birds ate only certain food sources, causing some foods to survive and others to die.
C
Birds changed food sources on the island to match their beaks
D
Birds with beaks adapted to the food source on the island, survived, and reproduced.
13) One theory suggests that giant wooly mammoths became extinct when the ice age ended and the climate became warmer. Why might this environmental change have led to their extinction?
A
Their traits were best suited for a cold climate
B
They didn't die off, their traits changed to match the new climate
C
There was not enough food available in the warmer climate
D
Smaller organisms thrived and larger organisms died off as the climate changed
14) Organisms with the most beneficial/useful traits live long lives and reproduce. This is called ??? of the ???
A
Survival of the fittest
B
Benefits of the best
C
Survival of the advantageous
D
Survival of the living
15) In a population of codfish, a scientist notes that some fish have larger or smaller fins than the other. These differences among the traits of organisms in a population are known as:
A
extinction
B
competition
C
variation
D
evolution
16) What is the importance of DNA in the body?
A
It releases the energy stored in food so it can be used by the body
B
It is where the that are needed by the body are assembled
C
It moves materials into and out of the cell
D
It carries the genes that determine ingerited traits
17) All of the following are evidence for evolution except for:
A
Different genes
B
Similarities in DNA
C
Similar developmental patters
D
Homologous structures
18) Which of the following is the best example of an adaptation that helps an organism survive in its environment?
A
a layer of scales on an animal that lives in the tundra
B
Small delicate leaves on a plant living in the snow
C
Green coloring in a lizard living on black igneous rock
D
A thick waxy cuticle to help store conserved water in a desert plant
19) A trait that helps an organism survive and reproduce is called a?
A
species
B
adaptation
C
variation
D
selection
20) Darwin's idea about how evolution occurs is called
A
variation
B
species
C
natural selection
D
adaptation
*select an answer for all questions
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