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

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

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.

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

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

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

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