1) What is an adaptation? a) is a way of live of the plants b) is a physical trait or behavior that helps an organism survive in its environment c) is a characteristic of plants to be alive 2) What is a desert plant adaptation? a) they don't drink water b) they can live in a hot and dry environment c) they live in a way that rains a lot too 3) What is an adaptation from cactus? a) they have a thick, waxy stems that store water. They have dense, shallow roots to soak up rain quickly. b) they can survive in hot and wet conditions. c) their roots absorb nutrients and anchor the plant high in a tree. 4) What is an adaptation from rainforest plants? a) they can survive in hot and wet conditions. Their roots absorb nutrients and anchor the plant high in a tree. b) They have dense, shallow roots to soak up rain quickly. c) they have a thick, waxy stems that store water. 5) What adaptation does orchids have? a) They can live in hot environment b) They chave waxy stems that store water. c) Their roots absorb nutrients and anchor the plant high in a tree. Their leaves are shaped to drain excess water to prevent rotting. They can survive in warm, moist conditions. 6) Why does plants have adaptations? a) They can change wherever they want b) To change their aspects and look like other plants c) to defend themselves from animals that would eat them. 7) What are examples of adaptations? a) need water b) need sunlight and soil c) have thorns or produce chemicals that are poisonous or taste bad 8) What is stimulus a) a way of eat of plants b) a change that plants have c) a change in a environment that causes an organism to respond 9) what does plants have to react to changes in their environments? a) their leaves b) internal structures c) their roots 10) what is a response? a) a change in an environment that causes an organism to respond b) the reaction or change in behavior of an organism c) a plant's response to water, gravity, light and touch 11) what is a tropism? a) a plant's response to water, gravity, light and touch b) a change in an environment that causes an organism to respond c) the reaction or change in behavior of an organism 12) what is a plant responds to a stimulus by changing? a) it is their way to live b) its pattern of growth c) they way they get their food 13) When a plant gros toward light, it is showing which type of tropism? a) hydrotropism b) gravitropism c) phototropism d) thigmotropism 14) when a plants roots grow downward, the same direction as the pull of gravity like vine wrapping around a fence is an example of? a) phototropism b) thigmotropism c) hydrotropism d) gravitropism 15) when roots sense water in the soil and grow toward or away from it? a) phototropism b) thigmotropism c) hydrotropism d) gravitropism 16) when some plants respond to touch or contact with an object by curling around that object or clinging to it, it is called a) phototropism b) thigmotropism c) hydrotropism d) gravitropism

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