Traits for Survival - 6th grade

All organisms acquire their needs for energy, materials, and living space from

• the sky

• their mothers

• the environment

• their food

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Which of these is likely to cause dehydraon in an organism?

• a drought that lasts for five years

• a period of rainfall that lasts for three days

• a sudden thunderstorm that lasts for two hours

• a water source that has lasted hundreds of years

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Which of these is true of a plant’s needs for survival?

• Plants do not have to eat food because they make their own.

• Plants do not take in nutrients from their environments.

• Plants receive carbon dioxide from the water in their environments.

• Plants need to share their space in order to strengthen their roots.

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The survival of organisms can be threatened by

• extreme temperatures.

• the risk of diseases.

• the danger of being eaten by other organisms.

• all of the above

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One example of a physical trait is the

• nest built by an eagle.

• quills on a porcupine.

• lifespan of an elephant.

• movement of a snake.

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How do plants most commonly use their physical traits to protect themselves from predators?

• They produce toxic odors that paralyze their predators.

• They change their color to a bright red to warn predators they are dangerous.

• They produce spines, prickles, and/or thorns to protect themselves from being eaten.

• They change the shape of their leaves so it is harder for predators to identify them.

How does a woodpecker’s beak help to protect it from starvation?

• It is thick, making it easy to crack open nuts.

• It is long and narrow, making it easy to get insects out of holes

• It is short and rounded, making it easy to gather plants.

• It has pockets, making it easy to store food for long periods of me.

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Which of the following is an example of one of the Army’s criteria for designing a new jacket?

• It needed to keep soldiers warm when they were wet.

• It needed to quickly absorb warmth from the environment.

• It needed to easily fit all body types.

• It needed to be nothing like the down material they had been using before.

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A behavioral trait is

• a distinct feature or body part of an organism

• an individual way in which an organism gathers food.

• a unique instinct that alerts organisms of nearby danger.

• a distinct way in which an organism interacts with its environment.

Which of these is NOT an example of a behavioral trait?

• a dog barking at a strange noise

• a snake’s outer layer of skin that sheds a=er growth

• a plant leaning in the direction of sunlight

• an opossum playing dead when a coyote is nearby