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Which group of plants uses flowers and fruits to make and protect their seeds?
non-flowering plants
mosses
flowering plants
ferns
How are ferns different from mosses?
ferns do not need any water to grow while mosses do
ferns use seeds to reproduce while mosses use flowers
ferns have special tubes inside to carry water while mosses do not
ferns grow seeds in cones while mosses grow soft fruits
What must happen inside a flower before a new seed can start to grow?
pollen must join with an egg cell inside the flower
petals must fall off and turn into green leaves
spores must be blown out into the sky
roots must grow deeper into the dark soil
Why do non-flowering plants like ferns and mosses need water or damp places to reproduce?
their tiny swimming cells need water to swim and meet each other
water helps them grow bright colorful petals
they must soak their seeds in water before planting them
their spores will die if they touch any water
How is an apple tree different from a pine tree?
an apple tree makes seeds inside fruits while a pine tree makes seeds inside cones
an apple tree uses spores while a pine tree uses seeds
an apple tree does not have real leaves or roots
an apple tree relies on wind while a pine tree only uses bugs
Which part of a flower grows bigger and turns into a delicious fruit?
ovary
sepal
petal
stamen
How is a spore different from a seed?
spores always turn into apples while seeds turn into pine cones
spores are single tiny cells without extra food while seeds hold baby plants with stored food
spores are only carried by large animals while seeds only float in wind
spores grow inside flowers while seeds grow on green leaves
What job do sepals do for a flower?
they wrap around and protect the flower bud before it opens
they hold the plant roots tight in the mud
they use bright colors to attract bees and butterflies
they make yellow pollen grains for the plant
Why do mosses stay very small and live in wet areas?
they do not have internal tubes to pump water up to tall branches
they produce heavy seeds that fall straight down
their leaves are too thick to take in air
they cannot make food when the sun shines bright
Which plant group makes seeds but never grows any flowers?
ferns
liverworts
mosses
conifers
Where can you find the tiny dots that release spores on a fern?
deep under the ground on the roots
underneath the leafy fronds
inside the hard woody cones
on the very tip of the flower petals
What helpful trick do flowering plants use to get animals to spread their seeds?
they drop heavy cones that animals bury in dirt
they float on water until animals drink them up
they make sticky spores that glue onto animal feet
they hide seeds inside tasty fruits that animals love to eat
Which flower part makes the powdery pollen grains?
stamen
sepal
pistil
root
What is one thing that pine trees and orange trees have in common?
both use tiny spores instead of seeds
both drop all their leaves every single winter
both make seeds to grow new offspring plants
both use bright sweet flowers to pull in bees
Why do many flowers make sweet liquid called nectar?
to catch floating spores drifting in the wind
to feed the tiny seeds growing deep inside the flower
to poison dangerous bugs that try to eat the stem
to give visiting animals a tasty treat so they carry pollen around
What happens during pollination?
the ovary turns into a big sweet fruit
spores fly off fronds into the cool air
pollen lands on the sticky female part of a flower
a seed sprouts out of the dark wet soil
