Using the concept of natural selection, explain why the blue snakes went extinct.
1
0
1
1
Question 16
16.
Using the concept of natural selection explain why the population of snakes shifted to mostly brown snakes. Use the words survive and best fit in your response.
1
1
1
1
1
1
1
1
Question 1
1.
Question 2
2.
Question 3
3.
Question 4
4.
Question 5
5.
Question 7
7.
How many brown snakes are there in the population?
Question 8
8.
How many green snakes are there in the population?
Question 9
9.
Question 10
10.
The blue snakes are most likely to be eaten by birds. What will happen to the blue allele (gene) in the population?
the blue allele (gene) will increase in the population
the blue allele (gene) will decrease in the population
the blue allele (gene) will stay the same
Question 13
13.
Question 14
14.
Question 15
15.
Question 17
17.
Question 18
18.
Question 19
19.
Question 20
20.
Question 21
21.
Question 22
22.
Question 23
23.
Question 24
24.
An organism's traits are determined by its DNA
True
False
There are no genetic variations in populations
True
False
Variations or differences in individuals are due to mutations
True
False
In natural selection the organism with the best traits survive and reproduce
True
False
Organisms with "bad" traits can change their traits in order to survive
True
False
Which color(s) of snakes are best suited for the environment grass and dirt environment?
Blue
Green
Brown
Which color of snake is more likely to be seen by predators?
Blue
Green
Brown
Due to the drought the environment is mostly brown dirt. Which color snake is "best fit" for the environment?
Brown
Green
Make a prediction. The number of brown snakes will
increase in number
decrease in number
stay the same
Make a prediction. The number of green snakes will
increase in number
decrease in number
stay the same
What happened to the allele frequency of green snakes in the population?
the amount of green alleles (genes) increased
the amount of green alleles (genes) decreased
the amount of green alleles (genes) stayed the same
If there were no birds in the area, would there be a shift in the population to mostly brown snakes?
No
Yes
The Owenoid fish are all different sizes. What causes the differences in the fish size?
A. magic
B. differences in the genes
C. osmosis
D. how much food the fish eats
What size fish is best suited for the environment?
Large fish
Medium fish
Small fish
Why are the large fish not eaten by the sharks?
A. the fish are too big and sharks cannot catch them
B. the fish taste bad
C. the fish are too fast
D. the fish blend into the ocean floor
Why are the small fish not eaten by the sharks?
A. the fish are too big and sharks cannot catch them
B. the fish taste bad
C. the fish are too fast
D. the fish blend into the ocean floor
Predict what will happen to the number of medium sized fish.
will decrease in number
will increase in number
will stay the same
What type of natural selection is seen in the Oweniod fish?
