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Fifth Grade (Grade 5) Biology Questions

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Grade 5 Botany
A conifer has the adaptation of what?
  1. trap leaves.
  2. needles.
  3. thorns, spikes, or prickles.
  4. showy leaves.
Grade 5 DNA, RNA, and Genetics
How many pairs of chromosomes do humans have?
  1. 236
  2. 46
  3. 23
  4. 10
Grade 5 Adaptations and Behavior
What is an instinct?
  1. behavior an animal inherits
  2. flow of energy through a community
  3. organism that eats other organisms
  4. animal without a backbone
Grade 5 Cell Structure and Function
The smallest unit of life is the
  1. cell.
  2. vacuole.
  3. mitochondrion.
  4. cytoplasm.
Grade 5 Biomes
What adaptation best helps elk to survive in the taiga biome?
  1. thick fur
  2. large antlers
  3. changing fur color
  4. shedding fur
Grade 5 Food Chains and Webs
A producer does not need the Sun to survive.
  1. True
  2. False
Grade 5 Circulatory and Immune Systems
The blood travels through the body in tubes called
  1. muscles.
  2. blood vessels.
  3. plasma.
  4. platelets.
Grade 5 Respiration, Digestion, and Excretion
Another name for the larynx is the
  1. Adam's apple.
  2. voice box.
  3. sinus cavity.
  4. throat.
Grade 5 Evolution
A species that no longer exists is                .
  1. endangered.
  2. lost.
  3. extinct.
  4. classified.
Grade 5 Botany
Bees help flowers reproduce through the process of what?
  1. fertilization.
  2. phototropism.
  3. transpiration.
  4. pollination.
Grade 5 Skin, Skeleton, and Muscles
The nails and hair, sweat glands, oil glands, and skin make up the                 system.
  1. digestive
  2. circulatory
  3. integumentary
Grade 5 Skin, Skeleton, and Muscles
What two things does the epidermis do? (Select all that apply.)
  1. It protects the layers beneath it.
  2. It lets water in.
  3. It keeps bacteria out of your body.
  4. It produces fat cells.
Grade 5 Cell Structure and Function
The part of the plant cell that is jelly-like and holds the other parts is the
  1. cytoplasm.
  2. cell wall.
  3. DNA.
Grade 5 Nervous and Endocrine Systems
What chemical messengers are part of the endocrine system?
  1. glands
  2. enzymes
  3. hormones
  4. homeostasis
Grade 5 Circulatory and Immune Systems
The smallest type of blood vessel is the capillary.
  1. True
  2. False
Grade 5 Biotic and Abiotic
Humans are biotic factors in our environment.
  1. True
  2. False
Grade 5 Anatomical Organization
The heart is an example of a(n)                .
  1. organ system
  2. organ
  3. tissue
  4. cell
Grade 5 Food Chains and Webs
A vulture is an example of a                 .
  1. predator.
  2. scavenger.
  3. carnivore.
  4. all of the above
Grade 5 Food Chains and Webs
The sequence of organisms through which energy flows is a
  1. food chain.
  2. food pyramid.
Grade 5 Cell Structure and Function
What part of the plant cell gives the cell shape?
  1. cytoplasm
  2. DNA
  3. cell wall
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