Comparing Life Cycles

EVERCHANGE MARSH · HATCHLING

Comparing Life Cycles

Rebirth Cavern

Learn with Hatchling, then use your clues in the adventure. Pause whenever you need time to read or think.

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Train more: lesson transcript and free resources

Hatchling — Comparing Life Cycles Rebirth Cavern

Hi!

I'm Hatchling.

Welcome to Rebirth Cavern!

Will you help me investigate comparing life cycles?

The Grumblies have mixed up our clues.

Let's check the evidence!

Plant and animal life cycles share growth and new generations,

but their structures and stages differ.

A flowering plant's seed is not the same structure as

an insect egg.

What do both cycles share?

  • A. All organisms producing pollen
  • B. Growth and new generations
  • C. Exactly the same structures

The answer is B: Growth and new generations

Plant and animal life cycles share growth and new generations,

but their structures and stages differ.

A flowering plant's seed is not the same structure as

an insect egg.

That clue helps us make sense of this place.

Changes in resources can affect survival at different stages.

A dry period may prevent some seeds from germinating even

when an established plant survives.

Which stage may be affected by insufficient water?

  • A. Seed germination
  • B. Only the printed label
  • C. Only the shape of the worksheet

The answer is A: Seed germination

Plant and animal life cycles share growth and new generations,

but their structures and stages differ.

A flowering plant's seed is not the same structure as

an insect egg.

Hmm...

how does that connect to our first clue?

Our generation archive compares plant seeds with animal offspring.

Rebirth Cavern is a fantasy place name: the records describe new individuals,

not bringing a dead individual back.

A butterfly lays eggs.

  • A. They are the same adult becoming young again
  • B. They skip growth and become adults immediately
  • C. They begin a new generation

How do the young relate to the adult?

  • A. They are the same adult becoming young again
  • B. They skip growth and become adults immediately
  • C. They begin a new generation

The answer is C: They begin a new generation

Offspring begin a new generation.

A life cycle describes patterns across generations,

not an individual returning from death.

Nice investigating!

You've been following the evidence.

Let's bring our clues together before the adventure.

Plant and animal life cycles share growth and new generations,

but their structures and stages differ.

Changes in resources can affect survival at different stages.

Our generation archive compares plant seeds with animal offspring.

You're ready to explore Rebirth Cavern with me!

Choose TRAIN MORE if you'd like another look at the clues.

Choose START ADVENTURE when you're ready.

I'll be right here!

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Free Comparing Life Cycles teacher guide and practice (PDF)

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