Evidence of Evolution
Vocabulary
Natural Selection
Speciation
Examples of Evolution
100
True or False: Most vertebrates look similar in early stages of development indicating they possibly share a common ancestor.
What is TRUE!
100
What vocabulary word means the process by which the heritable characteristics of a population change over time?
What is evolution.
100
True or False: Nature selects the fittest organisms who will alway have the fittest offspring.
What is FALSE!
100
What is a zygote?
What is a single cell that forms when a sperm fertilizes an egg.
100
This image is an example of...
What is homologous structures.
200
What do vestigial structures indicate?
What is ancestor had a use for a diminishing structure or organ that is no longer useful or necessary.
200
When an organism has the ability to adapt to its environment, survive and reproduce it is...
What is fittest.
200
True or False: Founder effect is when there's a reduction in the population due to a random event.
What is FALSE!
200
What two criteria must be met to be considered a species?
What is:
1. group of organisms that can survive and reproduce
2. offspring must be fertile
200
The image below is an example of what type of evolution?
What is divergent evolution.
300
What rate of evolution does the image represent?
What is gradualism.
300
What vocabulary word means anatomical structures that have similar functions but lacks evidence of common ancestry?
What is analogous structure?
300
Provide three sources for genetic variations.
What is:
1. mutations
2. sexual reproduction
3. gene flow
4. genetic drift
300
Give an example of convergent evolution...
Possible Answers:
- cacti in different geographical locations exhibit similar adaptations in order to survive in their environments
- bats and birds have wings in order to adapt to their environment despite coming from different evolutionary origins (beginnings)
300
Blue footed boobies engage in a courtship display where the male high steps to draw attention "show off" his feet to the female. This is an example of what type of isolation?
What is behavioral isolation.
400
This type of evidence shows how geography influences the evolution of plants and animals via adaptations and natural selection.
What is biogeography.
400
This type of speciation is when a two groups from the same population create new species without geographic isolation.
What is sympatric speciation.
400
What are the three principles Charles Darwin based his theory of natural selection on?
What is:
1. Not all individuals will survive and reproduce.
2. Traits are inherited from parents to offspring.
3. Advantageous traits lead to more fit generations.
400
What are three possible post-zygotic barriers?
What is:
1. Chromosomal mismatch could be lethal to the embryo.
2. Successful pregnancy but an unhealthy offspring.
3. Successful pregnancy, healthy offspring but offspring is infertile.
400
According to the table below, which animal is least related to a human?
What is the horse.
500
List five types of evidence for evolution:
What is
1. biogeography
2. embryology
3. biochemistry
4. fossil records
5. anatomy
500
Define genetic drift.
What is a random change in the frequency of gene variants in a population over time.
500
The image is an example of what type of natural selection?
What is stabilizing selection.
500
What are five examples of prezygotic barriers?
What is:
1. behavioral isolation
2. geographical isolation
3. temporal isoaltion
4. mechanical isolation
5. gametic isolation
500
What common ancestor do birds and snakes share?
What is diapsids.