Animal Evolution and Taxonomy Quiz

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Questions and Answers

What is the process called where ecdysozoans shed their old exoskeleton?

Endocytosis

Ecdysis (correct)

Endosmosis

Exocytosis

What is the name of the process of shedding an old exoskeleton in ecdysozoans?

Endosmosis

Exocytosis

Endocytosis

Ecdysis (correct)

True or false: The oldest animal fossils date back to 450 million years ago.

False

What is the significance of the Burgess Shale fossil site?

The Burgess Shale is one of the most important fossil sites in the world. Signup and view all the answers

What is the difference between diploblastic and triploblastic animals?

Diploblastic animals have two germ layers, while triploblastic animals have three germ layers. Signup and view all the answers

Which type of animals have two germ layers?

Diploblastic animals Signup and view all the answers

How many animal phyla are there?

Over 36 Signup and view all the answers

True or false: More than half of the animal phyla appeared during the Cambrian Explosion.

True Signup and view all the answers

What is the Burgess Shale?

A significant fossil site Signup and view all the answers

What is the process that ecdysozoans are named after?

Ecdysozoans are named for the process of shedding an old exoskeleton. Signup and view all the answers

When did vertebrate tetrapods first appear?

360 million years ago Signup and view all the answers

True or false: Animals with deuterostome development have determinate cleavage.

False Signup and view all the answers

What is the oldest known animal fossil?

550 million years old Signup and view all the answers

What is the name of the most significant fossil site in the world?

Yoho National Park Signup and view all the answers

True or false: The earliest animals may have had true tissues and resembled sponges.

False Signup and view all the answers

When did vertebrate tetrapods first appear?

Vertebrate tetrapods appeared 360 million years ago. Signup and view all the answers

True or false: Ecdysozoans are named for their process of shedding an old endoskeleton.

False Signup and view all the answers

Which type of animals have two germ layers?

Diploblastic animals Signup and view all the answers

What is the name of the major radiation of animals that occurred during the Cambrian period?

The Cambrian Explosion Signup and view all the answers

How many animal phyla are there?

There are over 36 animal phyla. Signup and view all the answers

What is the difference between deuterostome and protostome development?

Deuterostomes have indeterminate cleavage, while protostomes have determinate cleavage. Signup and view all the answers

What is the difference between deuterostome and protostome development?

Deuterostomes have indeterminate cleavage, while protostomes have determinate cleavage Signup and view all the answers

True or false: Arthropods appeared on Earth before vertebrate tetrapods.

True Signup and view all the answers

How many animal phyla are there?

Over 36 Signup and view all the answers

True or false: Diploblastic animals have three germ layers.

False Signup and view all the answers

When did vertebrate tetrapods first appear?

360 million years ago Signup and view all the answers

What is the oldest known animal fossil age?

The oldest known animal fossils date back to 550 million years ago. Signup and view all the answers

True or false: The Burgess Shale is not a significant fossil site.

False Signup and view all the answers

What is the name of the type of development that deuterostomes have?

Indeterminate cleavage Signup and view all the answers

What did the earliest animals resemble?

Sponges Signup and view all the answers

What is the function of the mesoderm in animals?

The mesoderm forms muscles and most other organs in animals. Signup and view all the answers

Study Notes

Animals are multicellular, ingestive heterotrophs with no cell walls and structural proteins.
The oldest animal fossils date back to 550 million years ago, with a major radiation of animals during the Cambrian Explosion.
There are over 36 animal phyla, with half appearing during the Cambrian Explosion.
The earliest animals may have resembled sponges and had no true tissues.
Animals have either deuterostome or protostome development, with deuterostomes having indeterminate cleavage.
Ecdysozoans are named for the process of shedding an old exoskeleton and include nematodes and arthropods.
Vertebrate tetrapods appeared 360 million years ago, while arthropods appeared 450 million years ago.
Diploblastic animals have two germ layers, while triploblastic animals have three germ layers.
Mesoderm forms muscles and most other organs in animals.
The Burgess Shale in Yoho National Park is one of the most significant fossil sites in the world.

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Description

Test your knowledge of animal evolution and taxonomy with this quiz! From the earliest animal fossils to the diverse array of animal phyla, this quiz will challenge your understanding of animal biology. Can you distinguish between protostomes and deuterostomes? Do you know which germ layer forms muscles and organs? Take this quiz and find out!