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2.09 Natural Selection of Tuskless Elephants

Last updated about 3 hours ago

6 questions

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Question 1

04:31

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Question 2

04:55

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Question 3

05:56

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Question 4

4.

Question 5

5.

Would tuskless elephants be considered a new species? Why or why not?

Question 6

6.

Question 1

1.

Question 2

2.

Question 3

3.

What benefit does a tuskless elephant have over a tusked elephant?

Over time, what would expect to happen to the population of elephants in this area?

The number of tuskless elephants would increase

The number of tuskless elephants would decrease

The number of tuskless elephants would stay the same

Based on the learning standard and success criteria:
Success Criteria:
I can identify the relationship between a change in the environment and a change in a population. 
I can describe the reason an adaptation increases the survival rate of an organism. 
I can identify how natural selection occurs in a population. 
How do you feel about meeting this target? Choose where you fall on this scale:

Need Review

Developing

Proficient

Excelling

What environmental pressure produced an increase in tuskless elephants?

Dietary changes

Poaching

Drought

Habitat loss

Why are tuskless elephants occuring more than they have in the past?

Tuskless elephants survive to pass on their tuskless genes to their offspring.

Elephants can induce the loss of tusks after severe instances of stress.

Elephants with tusks are hunted and killed, so we don't see them in the wild.