حل أوراق عمل Survival of Organisms العلوم المتكاملة الصف الثالث
حل أوراق عمل Survival of Organisms العلوم المتكاملة الصف الثالث
Answer Key with Questions
Lesson Check: Survival of Organisms
1) Which helps a fish survive in its environment?
fins
lungs
hair
sticky tongue
Correct Answer
fins
2) What resources in an ecosystem would an animal need to compete over? Select all that apply.
water
carbon dioxide
food
space
sunlight
Correct Answer
water
food
space
3) Which trait would best help an animal survive in the desert better than other animals?
a layer of blubber
large ears
wings
a long, thin beak
Answer Key with Questions
Lesson Check: Survival of Organisms
4) How does competition between animals change the traits of the animals in a population?
Correct Answer
Answers may vary.
Explanation
5) If a source of food in an ecosystem decreases for a population of snakes, which of the following is not likely to happen?
The number of snakes in the population decreases.
Some snakes move areas to find more food.
Some snakes try to find a different food source.
The number of snakes in the population increases.
Correct Answer
The number of snakes in the population increases.
Answer Key with Questions
Lesson Check: Survival of Organisms
6) Living things get food, water, and shelter from their environment. What would happen if the environment changes?
Correct Answer
Answers may vary.
Explanation
7) The monkey may become endangered because.
there are too many of them
the rainforests they live in are being cut down
they can find food easily
there is plenty of water
Correct Answer
the rainforests they live in are being cut down
Answer Key with Questions
Lesson Check: Survival of Organisms
Blank 1 options
sunlight
carbon dioxide
Correct Answer
sunlight
(Blank 1)
9) When plants and animals cannot adapt to their environment their population
dies off
survives
grows bigger
stays the same
Correct Answer
dies off
