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WorksheetsCharacteristics of Life
Total questions: 10
Worksheet time: 5mins
What is the basic unit of all living things?
cells
tissues
organs
muscles
Which level of organization in living things is a water flea an example of?
cell
tissue
organ system
organism
Which two things happen during gas exchange in this animal?
Oxygen moves from blood vessels into the lungs.
Oxygen moves from the lungs into the blood.
Carbon dioxide moves from the blood into the lungs.
Blood moves from blood vessels into the lungs.
What is the main source of energy for plants?
oxygen
water
soil
sunlight
Which two processes help animals maintain body temperature?
Sweating
Shedding fur
Spitting
Sensing danger
Which substance do cells need to get energy from food?
vitamin C
ammonia
oxygen
carbon dioxide
This photo shows a kind of reproduction. Which statement describes the result of this type of reproduction?
The offspring have identical genes
Parents make reproductive cells with only half of their genes
Each offspring has a different combination of genes
Two parents are required to produce the offspring
Which event is an example of a living thing responding to a stimulus?
The temperature rises during the day.
A houseplant grows toward the window.
The wind blows the roof off a house during a storm.
A rock makes a loud sound as it falls down a cliff.
When a pupil shrinks, less light can enter the eye. Which stimulus is most likely to cause a person's pupils to shrink?
loud sound
dark room
loud sound
bright light
A body cell has two chromosomes. When this cell divides to form two cells, which diagram shows the most likely result?
two cells with half the number of chromosomes
two cells identical to the first.
two cells with one chromosome each
two cells with four chromosomes each
