#065 Sea Otter Quiz #2

Alternative forms of a gene are called

• Alleles
• Homozygous
• DNA
• Genetics

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Hair color is an example of

• genotype

• phenotype

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Observable characteristics of an individual resulting from the interaction of its genes with the environment

• chromosomes

• karyotype

• genotype

• phenotype

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How did the sea otters preference for hunting large sea urchins affect the phenotypic variation of the sea urchins over time?

• There were less sea urchins in the population

• The sea urchins became larger.

• The sea urchins became smaller.

• The sea urchins became darker in color.

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What is the carrying capacity of the graph?

• 1000

• 8000

• 800

• 600

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What happens if a population grows past its carrying capacity?

• The population keeps growing exponentially

• Resources will run out and individuals will start to die

• The entire species will go extinct

• The carrying capacity just increases

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What is the carrying capacity of the graph?

• around 500

• more than 800

• less than 300

• around 700

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Marine organisms, such as sea urchins, make their shells using

• sodium chloride

• calcium carbonate

• seawater

• carbon dioxide

As the ocean becomes more acidic due to ocean acidification, the pH of the water

• increases

• decreases

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If a liquid is basic, its pH is...

• From 0-7

• 7

• From 7-14

• From 0-100

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