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?
- AWater
- BWind
- CAnimals
Q2:
These coconut palms are growing on the banks of the River Nile. How were the coconut seeds dispersed?
- 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?
- ABy wind
- BBy explosion
- CBy animals
Q4:
These ripe raspberries have seeds inside them. How are these seeds dispersed?
- ABy wind
- BBy animals
- CBy explosion
Q5:
The fruit of this cocklebur plant is covered with hooked spines.
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?
- 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)?
- 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.