Biology Term 3 Invertebrates/vertebrates

Question 1

What is an invertebrate?

Answer 1

An organism that lacks a backbone

Invertebrates include a wide variety of animals such as insects, mollusks, and cnidarians.

Question 2

Which group of animals are characterized by having a backbone?

Answer 2

Vertebrates

Vertebrates include mammals, birds, reptiles, amphibians, and fish.

Question 3

Fill in the blank: All _______ are invertebrates.

Answer 3

Cnidarians

Cnidarians include jellyfish, corals, and sea anemones.

Question 4

True or False: Invertebrates make up about 95% of all animal species.

Answer 4

True

This high percentage showcases the diversity and adaptability of invertebrates.

Question 5

Name three examples of vertebrates.

Answer 5

• Mammals
• Birds
• Reptiles

Other examples include amphibians and fish.

Question 6

Which invertebrate group is known for having a hard outer shell?

Answer 6

Mollusks

Mollusks include snails, clams, and octopuses.

Question 7

Fill in the blank: All mammals are _______.

Answer 7

Vertebrates

Mammals are characterized by their mammary glands and warm-blooded nature.

Question 8

What is the primary characteristic that distinguishes arthropods from other invertebrates?

Answer 8

Exoskeleton

Arthropods include insects, arachnids, and crustaceans.

Question 9

True or False: All vertebrates are cold-blooded.

Answer 9

False

While many reptiles and amphibians are cold-blooded, mammals and birds are warm-blooded.

Question 10

What type of symmetry do most invertebrates exhibit?

Answer 10

Radial or bilateral symmetry

This varies among different invertebrate groups.

Question 11

Fill in the blank: _______ are known for their segmented bodies and jointed appendages.

Answer 11

Arthropods

This includes animals like crabs, spiders, and insects.

Question 12

What is the largest class of vertebrates?

Answer 12

Fish

Fish are incredibly diverse and inhabit various aquatic environments.

Question 13

Name a unique feature of amphibians.

Answer 13

Metamorphosis

Amphibians undergo a life cycle that includes both aquatic and terrestrial stages.

Question 14

True or False: All invertebrates reproduce sexually.

Answer 14

False

Some invertebrates can reproduce asexually through processes like budding or fission.

Question 15

Fill in the blank: _______ are characterized by having feathers.

Answer 15

Birds

Birds are warm-blooded vertebrates with wings and beaks.