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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 stand up straight and hold petals together
to create pollen grains inside small pouches
to make sweet sugary nectar for hungry bees
to catch pollen grains carried by wind or bugs
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15
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How is an apple tree different from a pine tree?
an apple tree does not have real leaves or roots
an apple tree relies on wind while a pine tree only uses bugs
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
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15
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What weather would make it very hard for mosses to reproduce?
a damp riverbank covered in mist
a shady wet forest floor
a long hot drought with no rain
a rainy day with lots of moisture
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15
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Which non-flowering plant lacks true roots or leaves and soaks up water directly like a sponge?
fern
pine tree
cycad
moss
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15
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Why are pine trees called non-flowering plants even though they have seeds?
their seeds sit exposed on cone scales instead of inside flowers or fruits
their needles stay green through cold winters
they never need wind or bugs to move their pollen
they reproduce with spores instead of male and female plant parts
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15
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Why do mosses stay very small and live in wet areas?
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
they do not have internal tubes to pump water up to tall branches
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15
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What must happen inside a flower before a new seed can start to grow?
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
pollen must join with an egg cell inside the flower
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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 drop all their leaves every single winter
both make seeds to grow new offspring plants
both use tiny spores instead of seeds
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15
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Why do some flowers open at night with white petals and strong sweet smells?
to scare away animals that want to chew on stems
to attract night flyers like moths and bats in the dark
to keep pollen warm from cold night breezes
to soak up bright moonlight during midnight hours
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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?
water helps them grow bright colorful petals
their spores will die if they touch any water
their tiny swimming cells need water to swim and meet each other
they must soak their seeds in water before planting them
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seesaw
Swap points!
Oops!
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fairy
Take points!
5
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20
25
×
rocket
Go to first place!
Okay!
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banana
Go to last place!
Oops!
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trap
No points!
Oops!
×
fairy
Take points!
5
10
15
20
25
×
rocket
Go to first place!
Okay!
×
banana
Go to last place!
Oops!
15
×
What happens during pollination?
pollen lands on the sticky female part of a flower
spores fly off fronds into the cool air
a seed sprouts out of the dark wet soil
the ovary turns into a big sweet fruit
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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 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
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15
×
How does wind help non-flowering plants like ferns and mosses?
it blows lightweight spores to brand new places to grow
it carries heavy seeds across long distances
it moves pollen directly from male cones to female cones
it splashes water drops onto leaves for energy
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lifesaver
Give 25 points!
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seesaw
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gift
Win 25 points!
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thief
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