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Joe Johnston

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Cards in this guide (15)
What is an adaptation

a camel has humps to store water

a rabbit that has fur that blends in with snow

a trait that makes an organism more likely to reproduce

What causes population growth to slow down

Competition for resources

When will natural selection occur

Natural selection occurs when four conditions are met:

1. There is variation among individuals.

2. That variation is at least partially heritable.

3. That variation is linked to differential reproductive success.

4. More individuals are born than can survive and reproduce.

What is an effect of adaptive radiation

Speciation Adaptive radiation refers to changes in a species in response to varying environmental conditions.

many new species form

Which is a primary disturbance

A landslide or volcanic eruption is a kind of primary disturbance. It causes a very drastic and sudden change in the landscape.

Which freshwater ecosystem is most productive

marsh or swamp in warm sub tropical climates

What is a reproductive strategy

The method an organism uses to produce offspring

the way that a species creates offspring

What principles is not part of Darwin's original theory of evolution by natural selection

Random processes are not part of the theory of evolution by natural selection.

What effect do keystone species have on an eccosystem

A, they keep the populations of species balanced. Apex

How are finches in the Galapaagos Islands a good example of adaptation

Finches developed many different adaptations. For example, one type of finch had a short strong beak meant for cracking seeds, while another had a long narrow beak for gathering food from the inside of flowers, and cacti, therefore making each species more adapted to its specific environment and more able to gather food then they would on another island with a different main food source.

What happens when a population is in hardy weinberg equillibrium

You mama

The allele frequency does not change.

Which would stop hardy weinberg equillibrium from happening

What would stop hardy and weinberg equilibrium from happening

What statements is most true about the adoption of cell phone technology by people in Africa

Which statement is ture about all adaptations

A rabbit lives in a temperate forest. which would be an adaptation for this rabbit

Changing color when snow falls

which is a density-independent factor in controlling a population

C) apex

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