Understanding Life Cycles with Bill Nye

What does every living thing have that explains its growth and reproduction?

• A growth chart

• A life cycle

• A water cycle

• A food chain

Which animal is known to live close to a century?

• Bristlecone Pine

• Chicken

• Orca Whale

• Rabbit

How long can a Bristlecone Pine live?

• About 100 years

• About 500 years

• Over 5,000 years

• Less than a year

What do chickens do as part of their life cycle?

• Hibernate

• Grow leaves

• Live underwater

• Lay eggs

What does the life cycle of a plant start with?

• A seed

• A flower

• A leaf

• A stem

What helps trees spread their seeds?

• Water

• The sun

• Squirrels

• The wind

What is a characteristic of R-selected species?

• Few offspring with high care

• Many offspring with little care

• Offspring that live forever

• No offspring

What do K-selected species focus on?

• Having many offspring

• Having few well-cared-for offspring

• Growing very large

• Living underwater

Why do trees start their life from small seeds?

• To make food

• To compete with other plants

• To grow faster than ferns

• To travel with animals

What is common to all life cycles?

• They all include sunlight

• They all involve water

• They all have birth, growth, reproduction, and death

• They all occur in the ocean