Hydra Stretchy, Speedy, & Probably Immortal

Hydra Stretchy, Speedy, & Probably Immortal

Assessment

Interactive Video

Biology, Health Sciences

University

Hard

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The video explores the fascinating world of hydras, small freshwater organisms related to jellyfish and sea anemones. It covers their unique anatomy, feeding mechanisms, and incredible regenerative abilities. Hydras can regenerate from being cut into pieces and have a symbiotic relationship with algae. Despite their simplicity, they exhibit complex behaviors and may be biologically immortal, as they show no signs of aging. The video also highlights the discovery of hydras in unexpected places, like shopping mall aquariums.

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3 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain the process by which a hydra consumes its prey.

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the significance of chloroplasts in green hydras?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

What does it mean that hydras are sometimes called 'The Eternal Embryo'?

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