12.01 A is arthropod

Gorillas are mammals. Which sentence best describes the physical characteristics of this animal?

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  Gorillas are vertebrates that have scales and a beak.

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  Gorillas are vertebrates that have hair over their bodies.

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  Gorillas are invertebrates that have hair over their bodies.

• Gorilla are invertebrates that have a hard outer body and jointed legs.

What are vertebrates?

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  Animals with a backbone

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  Animals with no spine

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  Animals with gills

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  Animals with scales

Scientists classify animals based on physical characteristics and behaviors. Which sentence best describes the behavior of a reptile, like a tortoise?

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  Tortoises are vertebrates with gills.

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  Tortoises are invertebrates with hair.

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  Tortoises lay eggs and live on land.

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  Tortoises have tough skin and protective scales.

Which sentence best describes an arthropod like this spider?

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  A spider is an invertebrate that gives live birth.

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  A spider is a vertebrate that has tough skin and protective scales.

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  A spider is a vertebrate that lays eggs, and lives on land and water.

• A spider is an invertebrate that has a hard outer body and jointed legs.

Which sentence best describes this bird?

• This bird is a vertebrate that has feathers, a long beak, and lays eggs.

• This bird is a vertebrate that has fur, a short beak, and gives live birth.

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  This bird is an invertebrate that has feathers, a short beak, and lays eggs.

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  This bird is an invertebrate that has scales, a long beak, and gives live birth.

Which sentence best describes this frog?

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  A frog is a vertebrate with a hard outer body, gills, and dry skin.

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  A frog is a vertebrate with gills, moist skin, and it lays eggs.

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  A frog is an invertebrate with gills, moist skin, and it lays eggs.

• A frog is an invertebrate with a hard outer body, gills, and dry skin.

Which sentence best describes this fish?

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  A vertebrate that has scales and fins, and lays eggs

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  An invertebrate that has scales, smooth skin, and lays eggs

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  A vertebrate that has hair, feeds milk to their young, and gives live birth

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  An invertebrate that has hair, feeds milk to their young, and gives live birth

Where do traits come from?

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  Offspring pass their traits to their parents.

• Offspring get traits from the father.

• Offspring get traits from the mother.

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  Parent pass their traits to their offspring.

Which sentence best explains how a group of organisms will have a variation of traits?

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  Organisms will have a difference in traits because of the way they smell.

• Organisms will have a difference in traits because of the way they make sounds.

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  Organisms will have a variation of traits because of the difference in traits passed on from their parents.

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  Organisms will have a variation of traits because of the similarities in traits passed on from their parents.

What is an example of a trait that has been influenced by the environment?

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  The black moth responding to the trees turning black from smoke

• The cheetah having yellow eyes due to the hot sun

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  The butterfly having many colors to accommodate leaves changing color

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  The gorilla having thick fur due to cold temperatures