Science 12.01

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

• Gorillas are vertebrates that have scales and a beak.

• Gorillas are vertebrates that have hair over their bodies.

• Gorillas are invertebrates that have hair over their bodies

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

What are vertebrates?

• Animals with a backbone

• Animals with no spine

• Animals with gills

• Animals with scales

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

• Tortoises are vertebrates with gills.

• Tortoises are invertebrates with hair.

• Tortoises lay eggs and live on land.

• Tortoises have tough skin and protective scales

Which sentence best describes an arthropod like this spider?

• A spider is an invertebrate that gives live birth.

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

• 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.

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

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

Which sentence best describes this frog?

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

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

• 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?

• A vertebrate that has scales and fins, and lays eggs

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

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

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

Where do traits come from?

• Offspring pass their traits to their parents.

• Offspring get traits from the father.

• Offspring get traits from the mother.

• Parent pass their traits to their offspring

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

• 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.

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

• 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?

• The black moth responding to the trees turning black from fire

• The cheetah having yellow eyes due to the hot sun

• The butterfly having many colors to accommodate leaves changing color

• The gorilla having thick fur due to cold temperatures