Gymnosperms Answers

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Which characteristic do ginkgoes and cycads have in common?

A
are usually evergreen
B
lived during the time of dinosaurs
C
produce football-sized cones
D
have a shallow root system
2
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The image shows a branch from a ginkgo tree.

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A
naked seeds
B
wide, large leaves
C
woody stems
D
vascular tissue
4

Jean listed the steps involved in the life cycle of a gymnosperm.1 - The pollen gets stuck in a sticky liquid.2 - Sperm from the pollen fertilize the egg in the ovule.3 - The ovule develops into a seed.4 - When mature, the seeds are dispersed.Which step is missing?

A
Before step 3, the ovule develops cones.
B
Just after step 3, the ovule develops cones.
C
Before step 1, wind carries pollen from the male to the female cones.
D
Just after step 1, wind carries pollen from the male to the female cones.
7

Which describes a likely advantage of the roots that gymnosperms have?

A
They are shallow, preventing the plants from growing too tall above ground.
B
They are shallow, allowing the plants to easily gather water from Earth’s surface.
C
They grow deep, preventing the plants from growing too tall above the ground.
D
They grow deep, allowing the plants to gather water from far below Earth’s surface.
8

What does the Greek word gymno mean?

A
large/full
B
seed
C
sperm
D
bare/naked
9

Which accurately describes reproduction in gymnosperms? Select four options.Some require heat for seed dispersal.Female cones produce pollen.Most gymnosperms produce male and female cones.Fertilized ovules grow into seeds.Male and female cones may grow on the same plant.

A
Some require heat for seed dispersal.
B
Female cones produce pollen.
C
Most gymnosperms produce male and female cones.
D
Fertilized ovules grow into seeds.
E
Male and female cones may grow on the same plant.
10

What role can fire play in the life cycle of some gymnosperms?

A
It can help cones open and release seeds.
B
It can produce the sticky liquid to help capture pollen.
C
It can allow seeds to develop faster into mature plants.
D
It can prevent plants from releasing too much pollen.

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Gymnosperms Answers — Science 7 B M12 2526 S2