Parts of a plant – True or false

The Saguaro cactus blooms at night because its pollinators are active then. If it bloomed during the day, the nectar would dry up before pollination could occur.

Which type of flowers are known to bloom only during the night?

• Sunflowers

• Tulips

• Saguaro cactus

• Roses

Why do Saguaro cactus flowers open after sunset?

• To attract nocturnal pollinators

• To avoid sunlight

• To avoid predators

• To conserve water

What is the role of pollinators in the blooming process of the Saguaro cactus?

• They provide shade to the flowers

• They protect the flowers from predators

• They feed on the nectar and aid in pollination

• They help the flowers bloom

What is the main reason Saguaro cactus flowers do not bloom during the day?

• The flowers are not colorful enough

• The temperature is too high

• The flowers are too delicate

• The nectar would dry up

What happens to the nectar of Saguaro cactus flowers if they bloom during the day?

• It dries up before pollination

• It changes color

• It attracts more pollinators

• It becomes more concentrated