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15
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Why do non-flowering plants like ferns and mosses need water or damp places to reproduce?
they must soak their seeds in water before planting them
their tiny swimming cells need water to swim and meet each other
water helps them grow bright colorful petals
their spores will die if they touch any water
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15
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What is the job of the sticky top part of the pistil called the stigma?
to create pollen grains inside small pouches
to catch pollen grains carried by wind or bugs
to make sweet sugary nectar for hungry bees
to stand up straight and hold petals together
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15
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What must happen inside a flower before a new seed can start to grow?
pollen must join with an egg cell inside the flower
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
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15
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What weather would make it very hard for mosses to reproduce?
a shady wet forest floor
a long hot drought with no rain
a rainy day with lots of moisture
a damp riverbank covered in mist
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baam
Lose 20 points!
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gold
Win 50 points!
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fairy
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5
10
15
20
25
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baam
Lose 5 points!
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15
×
How are ferns different from mosses?
ferns do not need any water to grow while mosses do
ferns grow seeds in cones while mosses grow soft fruits
ferns have special tubes inside to carry water while mosses do not
ferns use seeds to reproduce while mosses use flowers
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thief
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25
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star
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rocket
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lifesaver
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15
×
How does stored food inside a seed help a baby plant?
it invites insects to carry the seed deep underground
it lets the seed soak up light while buried in dark dirt
it helps the seed float away in strong wind currents
it gives the baby plant energy to grow until its first leaves catch sunlight
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15
×
What is the main goal of both a spore-making fern and a fruit-making apple tree?
to make forests look pretty and colorful
to change soft flowers into hard wooden branches
to steal water and dirt away from nearby animals
to make new young plants so their species keeps living
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15
×
Why do mosses stay very small and live in wet areas?
their leaves are too thick to take in air
they produce heavy seeds that fall straight down
they do not have internal tubes to pump water up to tall branches
they cannot make food when the sun shines bright
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15
×
Why are pine trees called non-flowering plants even though they have seeds?
they reproduce with spores instead of male and female plant parts
their needles stay green through cold winters
their seeds sit exposed on cone scales instead of inside flowers or fruits
they never need wind or bugs to move their pollen
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baam
Lose 25 points!
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gold
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rocket
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baam
Lose 10 points!
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15
×
What helpful trick do flowering plants use to get animals to spread their seeds?
they drop heavy cones that animals bury in dirt
they hide seeds inside tasty fruits that animals love to eat
they make sticky spores that glue onto animal feet
they float on water until animals drink them up
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15
×
Which flower part makes the powdery pollen grains?
sepal
pistil
stamen
root
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15
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What is one thing that pine trees and orange trees have in common?
both use bright sweet flowers to pull in bees
both use tiny spores instead of seeds
both make seeds to grow new offspring plants
both drop all their leaves every single winter
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15
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Which plant group makes seeds but never grows any flowers?
conifers
mosses
liverworts
ferns
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