Types of Animal Body Cavities

Types of Animal Body Cavities

Assessment

Interactive Video

Biology, Science, Other

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains the structure of triploblastic animals, focusing on their three germ layers: ectoderm, endoderm, and mesoderm. It describes the different types of body cavities found in these animals, including acoelomates, pseudocoelomates, and coelomates. Acoelomates, like flatworms, have a solid mesodermal layer, while pseudocoelomates, such as roundworms and rotifers, have a fluid-filled cavity between the mesoderm and endoderm. Coelomates, including humans, possess a true coelom entirely within mesodermal tissue, allowing for more complex organ development.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the three germ layers in triploblastic animals?

Ectoderm, Mesoderm, Endoderm

Ectoderm, Mesoderm, Epidermis

Endoderm, Epidermis, Mesoderm

Epidermis, Endoderm, Ectoderm

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which form of mesodermal tissue presentation is found in flatworms?

Coelomate

Bilateral

Pseudocoelomate

Acoelomate

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a characteristic feature of pseudocoelomates?

No body cavity

Gap between mesoderm and endoderm

Body cavity completely within mesoderm

Solid mesodermal tissue

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In which organisms is the pseudocoelomate form observed?

Jellyfish

Humans

Roundworms and Rotifers

Flatworms

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main advantage of having a pseudocoelom?

Faster movement

Enhanced nutrient circulation

Increased muscle mass

Protection from predators

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What defines a true coelomate?

Body cavity within mesoderm

Body cavity within endoderm

Body cavity within ectoderm

No body cavity

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is an example of a true coelomate?

Human

Roundworm

Flatworm

Rotifer

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