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Life Cycles
Test Description: Unit 8
Instructions: Answer all questions to get your test result.
1) Through what structure do plants take in the most water?
A
stems
B
roots
C
seeds
D
leaves
2) What structure do jellyfish use to protect themselves?
A
poisonous bite
B
stinging tentacles
C
special hooks
D
Camouflage
3) American pit vipers are snakes that have shallow, heat-sensing pits located between their nostrils and eyes. These pits help them sense changes in temperature. What is the main function of these pits?
A
To help the snake hear
B
To find warm-blooded birds and mammals as prey
C
To help chew food
D
To know when it is a warm day
4) A student is an excellent swimmer. Which of the following traits would most support the idea that the student's skill is learned?
A
The student's father is an excellent swimmer.
B
The student swims several times each week.
C
The student has long arms.
D
The student has strong muscles.
5) Polar bears live in the Arctic where temperatures can be as low as –10°C. Which of the following structures most helps polar bears survive and reproduce in this cold climate
A
Sharp teeth and white fur
B
A large size and sharp teeth
C
Thick fur and insulating body fat
D
Being a predator and camouflage
6) Which trait comes from a plant's parents, not from its environment?
A
its leaf shape
B
the length of its root system
C
the number of leaves
D
the number of seeds
7) Which of these is not an inherited trait in a cat?
A
meowing
B
tail wagging
C
trust of humans
D
scent marking
8) A learned behavior
A
cannot be inherited.
B
only occurs in humans
C
can be inhertied
D
does not affect survival.
9) If you compare a plant life cycle and an insect life cycle, which stages would be similar?
A
larva and flower
B
seed and egg
C
flower and pupa
D
adult and seedling
10) In an insect that undergoes incomplete metamorphosis, what occurs between the nymph stage and the adult stage?
A
the pupal stage
B
molting
C
a resting stage
D
development of a chrysalis
11) A seed was planted. It grew into a plant. The plant died. What will happen next?
A
It will make a seed.
B
It will flower.
C
It will grow into a new plant.
D
It will decay
12) How is the life cycle of a cat different from the life cycles of frogs, chickens, and goldfish?
A
It has more stages
B
It takes much less time for young to become adults.
C
It includes an adult stage.
D
It does not include hatching from an egg
13) Which part of the plant is used for reproduction, or making new seeds?
A
stem
B
roots
C
flower
D
leaf
*select an answer for all questions
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