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WorksheetsNatural selection and evolution SC.7.L.15.1- 15.2
Total questions: 14
Worksheet time: 8mins
The change in traits over time in a population is known as
Evolution
Mutation
Selection
Traits
.
Which rock layer contains the newest fossils?
B
F
E
C
What most likely caused the finches on the Galapagos Islands to have beaks that were different from the finches on the mainland?
There were different types of predators on the islands.
The finches on the mainland could not fly high enough.
There was no water on the islands.
There were different food types on each island.
What terms refers to the changes in a species that add up (accumulate) over MANY, MANY years?
common descent
adaptation
evolution
natural selection
Which of the following describes an adaptation?
a trait that makes an organism poorly suited to its environment
a trait that makes an organism best suited to its environment
a trait that has no effect on how an organism survives in its environment
What happens if an organism is well adapted to its environment? Please check ALL that apply.
The organism survives.
The organism reproduces.
The organism passes on its favored adaptations to its offspring.
The organism can't reproduce.
Which color of beetle is the favorable variation?
green
orange
Why are favorable traits more likely to be passed onto offspring?
Because they are more likely to survive and reproduce.
Because they come from dominant alleles.
Because they come from recessive alleles.
Because the trait is an acquired phenotype.
Evolution is a gradual process. What does "Gradual" mean?
Quick
Slow
Round
Graded
1. The fossil evidence found in these sedimentary layers BEST implies that
land plants are older than land animals
invertebrates lived on Earth before vertebrates
A. land animals evolved at the same time as marine animals.
1. A change in the genetic make-up, appearance, and behaviors of a species over time is called (a) .
1. A fish fossil is found in a rock. A foot bone and tooth are found in an older layer of the same rock. What can scientists learn from the rock?
The area was once an ocean.
The area has always been land.
The area changed from water to land.
The area changed from land to water.
