Humans breed cats to produce only orange cats, this is an example of?
Artificial selection
Oops!
Check
Okay!
Check
15
What is gene flow?
change in allele frequency due to movement between populations
Oops!
Check
Okay!
Check
20
What was Jean-Baptise Lamark's theory? Explain it.
We can acquire any trait that we want depending on our environment and this trait can then be further passed on to our offspring.
Oops!
Check
Okay!
Check
20
How is convergent evolution different from coevolution?
Convergent evolution is when two different species in same environment develop similar traits, coevolution is when two different species impact eachother evolut
Oops!
Check
Okay!
Check
15
How do we distinguish species from one another? What is the criteria?
Physiology, Biochemistry, Behaviour and Genetics
Oops!
Check
Okay!
Check
15
Over time, scientists have noticed that babies that are born at an intermediate weight are more likely to survive than babies born either much smaller or much larger than average. This phenomena can be shown in a graph depicting
Stabilizing selection as the intermediate is being favored.
Oops!
Check
Okay!
Check
15
There is a population of beetles found in a specific deciduous forest. A few of these beetles end up in a different deciduous forest and are able to reproduce. This causes the frequencies of alleles to change. What effect is this?
Genetic Drift - Founder Effect
Oops!
Check
Okay!
Check
25
When individuals with the extreme allele expressions are favored in an environment, what type of natural selection is this? Explain.
Directional or disruptive selection.
Oops!
Check
Okay!
Check
banana
Go to last place!
Oops!
gold
Win 50 points!
Okay!
shark
Other team loses 20 points!
Okay!
thief
Give points!
5
10
15
20
25
25
What is the similarities between allopatric and sympatric speciation. What is the difference?
Both involve the creation of new species. Allopatric - geological barriers, Sympatric - issues with cell division or mutations.
Oops!
Check
Okay!
Check
15
Explain Gametic Isolation.
The egg and sperm never meet, as the sperm may not be viable in the reproductive tract or possess the traits required for fertilization.
Oops!
Check
Okay!
Check
20
What is Darwin's theory of evolution. Explain two points.
Variations exist in a pop., Cannot obtain adaptation, survival of the fittest, favorable traits survive + reproduce, time for change, descent with modification
Oops!
Check
Okay!
Check
15
Explain Post-zygotic Isolating Mechanism, what does it mean?
The hurdles after egg and sperm meet.
Oops!
Check
Okay!
Check
15
All species, living or not, were derived from a common ancestor linked by a single tree of life is known as whar?
Descent with modification/common descent. Concept where all species are thought to have been derived from one ancestor/origin