CSI Wildlife/Tusklessness/Test Review

What is tusklessness?

• When an elephant has its tusks taken away

• When an elephant is born without tusks

• When an elephant has tusks

• When an elephant dies

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How does an elephant become tuskless?

• It is killed

• It is born without tusks

• It decides not to have any tusks

• They fall off at a certain age

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Why is being tuskless an advantage?

• Elephants don't need their tusks so it doesn't matter

• There is no advantage to being tuskless

• Elephants don't have to worry about brushing their teeth

• Elephants won't be targeted by human poachers because they don't have ivory (tusks)

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Why is being tuskless a disadvantage?

• Elephants don't need their tusks so there is no disadvantage

• Elephants won't be able to protect themselves without them

• Elephants won't look cool without tusks

• Elephants have to clean their tusks

Which gender elephant are born tuskless?

• female

• male

• they both are equally born without tusks

What does survival of the fittest mean?

• Animals with the most muscle live

• Animals that live in groups live

• Animals that are fit for their environment are more likely to survive and reproduce

• Animals that workout are more likely to survive and reproduce

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Why did the percentage of elephants that were tuskless increase over time?

• More elephants decided to be tuskless

• The tuskless elephants were able to reproduce and pass the trait down

• More elephants had their tusks fall off

• The tuskless elephants all died

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Why are advantageous traits more likely to be passed onto offspring?

• Because they are more likely to survive and reproduce.
• Because they come from dominant alleles.
• Because they come from recessive alleles.
• Because the trait is an acquired phenotype.

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A limiting factor is anything that stops or slows down a population's size (stops it from growing). What is one limiting factor that effects elephant populations more than others?

• Food

• Water

• Poaching/hunting

• Predators

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To repeatedly copy a molecule such as DNA, usually until there are billions of copies present.

• Amplify

• Base Pairs

• Flanking Sequence

• DNA Fingerprint