Plant Life Cycles and Classifications

The video tutorial explains the life cycle adaptations of plants, categorizing them into ephemeral, annual, biennial, and perennial types. Ephemeral plants complete several life cycles in one season, while annuals complete theirs in one year. Biennials take two years, and perennials live for more than two years. Each type is further divided based on characteristics like growth patterns and environmental responses, with examples provided for each category.

What are life cycle adaptations in plants?

• Techniques plants use to grow taller

• Strategies plants use to survive and reproduce in various environments

• Methods plants use to photosynthesize

• Ways plants adapt to different climates

Which type of plant completes several life cycles in one growing season?

• Ephemeral

• Biennial

• Perennial

• Annual

What triggers ephemeral plants to germinate and reproduce quickly?

• High temperatures

• Favorable conditions like rainfall

• Lack of sunlight

• Nutrient-rich soil

How long does it take for annual plants to complete their life cycle?

• One year

• One month

• Several years

• Two years

Which of the following is an example of an annual plant?

• Oak

• Peony

• Marigold

• Foxglove

What is the life cycle duration of biennial plants?

• More than three growing seasons

• Three growing seasons

• Two growing seasons

• One growing season

Which plant is typically grown as a biennial due to poor performance after flowering?

• Hop

• Lilac

• Warflower

• Zinnia

How are perennial plants classified?

• By their leaf color

• By their root depth

• By the presence or absence of secondary growth

• By their flower size

Which of the following is a characteristic of herbaceous perennials?

• They grow vegetatively in the first year

• They maintain live woody stems throughout the year

• They complete their life cycle in one year

• They die back to a root stock each autumn

Which plant is an example of a woody perennial?

• Peony

• Lilac

• Ground cell

• Zinnia