Sunflower Life Cycle and Growth

The video explains the life cycle of a sunflower, starting from planting the seed, through germination, seedling development, and the formation of a flower bud. It describes the blooming process, pollination, and seed formation, concluding with seed harvesting and the renewal of the life cycle.

What are the initial conditions required for a sunflower seed to start germinating?

• Water, sunlight, and warmth

• Fertilizer, shade, and cold

• Wind, rain, and snow

• Darkness, dryness, and heat

During germination, what part of the sunflower seed grows downward?

• The roots

• The leaves

• The stem

• The shoot

What process allows the seedling to produce its own food?

• Respiration

• Germination

• Transpiration

• Photosynthesis

What is the purpose of the sunflower's sturdy stem?

• To store nutrients

• To attract pollinators

• To support the large flower

• To absorb water

What is formed at the top of the sunflower plant before it blooms?

• A flower bud

• A seed

• A root

• A leaf

What role do bees and butterflies play in the life cycle of a sunflower?

• They protect the plant from pests

• They provide nutrients to the roots

• They pollinate the florets

• They help the plant grow taller

What happens to the sunflower petals after pollination?

• They produce more seeds

• They grow larger

• They change color

• They begin to wilt

What can be done with the seeds once they are fully developed?

• They can be eaten immediately

• They can be used to grow new sunflowers

• They can be discarded

• They can be used as fertilizer