Worksheet: The Life Cycle of Flowering Plants: How Seeds Are Dispersed

In this worksheet, we will practice describing the ways in which seeds are formed in a plant and the ways that they are dispersed.

Q1:

Which agent of pollination is shown in this photograph?

Wind-72 ppi
  • AWater
  • BWind
  • CAnimals

Q2:

These coconut palms are growing on the banks of the River Nile. How were the coconut seeds dispersed?

Coconut palms - 72 ppi
  • AThe seeds were planted by humans.
  • BThe wind blew the coconuts.
  • CCoconuts stuck to the fur of animals and were dropped on the ground.
  • DThe seeds were dispersed in the water.

Q3:

The photograph shows a milkweed pod releasing its seeds.

How are these seeds dispersed?

A seed pod explodes-72 ppi
  • ABy wind
  • BBy explosion
  • CBy animals

Q4:

These ripe raspberries have seeds inside them. How are these seeds dispersed?

Fruits and flowers-Cropped
  • ABy wind
  • BBy animals
  • CBy explosion

Q5:

The fruit of this cocklebur plant is covered with hooked spines.

Cocklebur - 72 ppi

Choose the most likely method by which the seeds are dispersed.

  • AThey fall from the plant.
  • BThey are blown in the wind.
  • CThey are eaten by a bird.
  • DThey are carried on animal fur.

Q6:

Dandelion seeds are also called parachute seeds. Each parachute, or group of hairs, carries a seed.

Which type of seed dispersal is this plant designed for?

Dandelion seeds - Parachute seeds 2 - 72 ppi
  • AAnimal
  • BExplosion
  • CWind
  • DWater

Q7:

The seeds of the maple tree have specially adapted wings.

Which type of seed dispersal does this plant use?

  • AWater
  • BGravity
  • CWind
  • DAnimals

Q8:

Use the table to identify which plants disperse their seeds in water.

  • ABlackberry and beggar-ticks
  • BMilkweed and dandelion
  • CViolet, jewelweed, and witch hazel
  • DCoconut and cattail

Which type of dispersal is most likely for maple seeds?

  • AWind
  • BWater
  • CAnimals
  • DExplosion

Q9:

When apples are ripe and heavy, they fall from the tree to the ground. What is the name of this type of seed dispersal?

  • AWind dispersal
  • BWater dispersal
  • CGravity
  • DAnimal dispersal

Q10:

Which of the following statements is true about seed dispersal?

  • ASeed dispersal helps prevent overcrowding the roots of a plant.
  • BSeed dispersal helps plants grow in new areas.
  • CBoth of these are true.

Q11:

Jennifer was sitting in her yard when she saw a poppy seed explode and the seeds burst out. How will this explosion help the plant?

  • AFarmers will not have to plant lots of seeds.
  • BThe seeds will spread across a wide area to help grow lots of new plants.
  • CJennifer will not have to plant any poppy seeds.
  • DBirds will have more food to eat.

Q12:

This diagram shows the main way by which the seeds of a pea plant are dispersed in the wild. Which of the following choices best explains this type of seed dispersal?

  • AAnimals eat the peas and move around.
  • BThe skin of the fruit explodes, spreading the seeds.
  • CThe wind blows the peas out of their pods.

Q13:

Which stage is missing from the given picture of the life cycle of a flowering tomato plant?

  • AFlowering
  • BFruiting
  • CSeed dispersal
  • DSprouting

Q14:

What stage in the life cycle of a plant comes after fruiting?

  • APollination
  • BSeed dispersal
  • CFlowering
  • DFertilization

Q15:

This plant has hooked fruit.

How can animals help this plants reproduce (make new plants)?

Burdock Folk - hooked fruit - 72ppi
  • AThe fruits are eaten by animals.
  • BThe fruits hook onto animals’ fur and are carried away to a new location.
  • CThe fruits hook onto the plant and stay in the same location.

Q16:

Bees carry pollen from plant to plant to help make new seeds.

Which part of the plant contains seeds?

  • AThe fruit
  • BThe leaf
  • CThe flower
  • DThe stem

Q17:

The figure shows two ways that animals help plants grow new plants.

How is the bird helping the plant make new plants?

  • AThe bird is eating the seeds.
  • BThe bird is eating the fruit.
  • CThe bird eats the seeds and passes them as waste onto the ground.

How is the dog helping the plant grow new plants?

  • AThe dog is eating the seeds.
  • BThe dog will pass the seeds as waste.
  • CThe seeds which are stuck to the dog’s fur will fall onto the ground.

Q18:

Animals eat fruits, nuts, and seeds. This helps the plant disperse the seeds and grow new plants.

What does disperse mean?

  • APlant
  • BSpread
  • CGrow

Q19:

How do animals help in planting new seeds?

  • AAnimals eat the fruit.
  • BAnimals pass seeds as waste onto the ground.
  • CAnimals eat the seeds.

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