In a plant, the cell walls act as a support system and provide shape for the plant.
Which structures in the human body are similar in function to the cell wall of a plant?
A.
ligaments and tendons
B.
arteries and veins
C.
muscles and joints
D.
bones and cartilage
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Which organ is being described in this statement?
If this organ malfunctions, all other body systems would be deprived of nutrients.
A.
urethra
B.
brain
C.
lungs
D.
stomach
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Which statement is correct about the growth and development of vertebrates?
A.
The larva will undergo many changes after leaving its cocoon.
B.
A fertilized egg will undergo many changes and become an embryo.
C.
The gamete will undergo many changes after the egg is fertilized.
D.
The pupa will undergo many changes within a cocoon.
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Which is produced immediately after a plant sperm cell fertilizes an egg cell?
A.
plant nutrients
B.
a zygote
C.
a spore
D.
sweet nectar
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Which terms are used for gametes that are needed for reproduction in vertebrate animals?
A.
sperm and eggs
B.
seeds and spores
C.
buds and offspring
D.
antibodies and pathogens
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Which activity distinguishes the larva stage from the pupa stage of an insect?
A.
locating shelter
B.
making its own food
C.
reproducing
D.
feeding
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Which statement describes the life cycle of a butterfly?
A.
sheds its exoskeleton
B.
incomplete metamorphosis
C.
stages of infancy and puberty
D.
complete metamorphosis
