The change over time in populations of related species.
biological evolution
transition
variation
adaptation
2. Multiple Choice
30 seconds
1 pt
These cause variations.
mutations
adaptations
a desire to change
injuries
3. Multiple Choice
30 seconds
1 pt
A slight difference in an inherited trait between individual members of the same species.
variations
adapatations
homologous structures
analogous structures
4. Multiple Choice
30 seconds
1 pt
An inherited trait that increases an organism's chance of surviving and reproducing.
variation
adaptation
vestigial structure
mutation
5. Multiple Choice
30 seconds
1 pt
The discovery of DNA and genes proved that
Darwin was wrong
mutations create variations and come from genes
we are all the same species
bats and butterflies have a very close common ancestor
6. Multiple Choice
30 seconds
1 pt
The study of the similarity and differences in body structures between species.
comparative anatomy
embryology
molecular biology
archaeology
7. Multiple Choice
30 seconds
1 pt
Body parts of organisms that are the same in structure and position but different in function.
embryos
homologous structures
analogous structures
vestigial structures
8. Multiple Choice
30 seconds
1 pt
Body parts that function like each other, but are different in structure.
embryos
homologous structures
analogous structures
vestigial structures
9. Multiple Choice
30 seconds
1 pt
Body parts that have lost their original function.
embryos
homologous structures
analogous structures
vestigial structures
10. Multiple Choice
30 seconds
1 pt
Organisms with these structures are believed to be closely related.
analogous structures
homologous structures
mutated DNA
gills
11. Multiple Choice
30 seconds
1 pt
Organisms with these structures are NOT believed to be closely related.
analogous structures
homologous structures
vestigial strucutres
gills
12. Multiple Choice
30 seconds
1 pt
Organisms with these are believed to be related to an organism who once used the body part.
analogous structures
homologous structures
vestigial structures
gills
13. Multiple Choice
30 seconds
1 pt
Studying the development of ____ can provide scientists with evidence that certain species are related.
fish
embryos
Tiktaalik
vestigial structures
14. Multiple Choice
30 seconds
1 pt
What structure on Tiktaalik links fish to humans?
gills
limbs
embryos
brain
15. Multiple Choice
30 seconds
1 pt
When an organism of a species is born with a variation in a trait that gives it an advantage in its environment, we call that trait an adaptation.
true
false
16. Multiple Choice
30 seconds
1 pt
When an organism of a species has an adaptation, it will compete for resources better, survive longer and pass that adaptation on to it's offspring. This process is called
evolution by natural selection
artificial selection
inbreeding
outbreeding
17. Multiple Choice
30 seconds
1 pt
What is it called when humans decide which traits of an organism are the most desirable and only allow those organisms with the specific, desired traits to breed.
biological evolution
evolution by natural selection
artificial selection
inbreeding
18. Multiple Choice
30 seconds
1 pt
When an organism has a trait that allows it to blend in with its environment, we call that ____.
mimicry
camouflage
lucky
sonic hedgehog gene
19. Multiple Choice
30 seconds
1 pt
When an organism has a trait that makes it resemble another species, either in looks or behavior, we call that ____
mimicry
camouflage
copycatting
sonic hedgehog gene
20. Multiple Choice
30 seconds
1 pt
The English naturalist that developed the theory of how evolution works.