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