Understanding Eels: A Fascinating Journey

Understanding Eels: A Fascinating Journey

Assessment

Interactive Video

Biology, Science

5th - 8th Grade

Hard

Created by

Lucas Foster

FREE Resource

Eels are fascinating creatures with unique characteristics, such as breathing through their skin and migrating in the opposite direction of most fish. They are born in the Sargasso Sea and undergo various life stages, including the glass eel stage. Gender is determined upon entering freshwater, with females growing larger. Eels migrate back to the ocean for breeding, undergoing significant metamorphosis. The breeding process is largely unknown but is believed to involve mass gatherings. After breeding, eels likely die in the ocean, completing their life cycle.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What unique ability do eels have that distinguishes them from most other fish?

They can change colors rapidly.

They can breathe through their skin.

They can fly short distances.

They can live in both hot and cold climates.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where are freshwater eels like Eli born?

In the Amazon River

In the Mediterranean Sea

In the Pacific Ocean

In the Sargasso Sea

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

At what stage does an eel become known as a 'glass eel'?

When it is born

When it enters freshwater

When it reaches the coast

When it returns to the ocean

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the gender of an eel determined?

By the temperature of the water

By the type of food it eats

By the depth of the water

By entering freshwater

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary diet of a female eel like Elaine?

Coral and sponges

Plankton and krill

Small fish and insects

Algae and seaweed

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What significant changes occur in eels during their migration back to the ocean?

Their eyes and fins enlarge.

They grow additional limbs.

They lose their pigmentation.

They develop wings.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is the migration of eels considered one of the largest unseen migrations?

Because it happens at night

Because it involves millions of eels

Because it occurs deep underwater

Because it is invisible to the human eye

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