Animals: Characteristics of Invertebrates

Which of these groups of animals is invertebrate?

• nematodes, annelids, and platyhelminthes

• crustaceans, amphibians, and mollusks

• mollusks, insects, and mammals

• reptiles, fishes, and birds

Which group of invertebrates is divided into segments with a ringed appearance?

• Sponges

• Echinoderms

• Cnidarians

• Annelids

To what subgroup of arthropods do invertebrates with four pairs of legs belong?

• echinoderms

• crustaceans

• arachnids

• nematodes

Which group of animals is invertebrate?

• butterfly, mosquito, fly, grasshopper

• bird, dog, chicken, cat, ant

• fish, spider, snake, butterfly

• all of the above

Animals like clams, jellyfish, butterfly and grasshopper are examples of .

• invertebrates

• vertebrates

• mammals

• amphibians

Mollusks, sponges, echinoderms, and nematodes are classified as

.

• invertebrates

• vertebrates

• mammals

• amphibians

Which group of animals is invertebrate?

• frog, mosquito, cat, grasshopper

• bird, dog, chicken, cat, ant

• fish, spider, snake, dog

• earthworm, snail, bee, bug

What do we call the animals which do not have bone structure or backbone?

• vertebrates

• invertebrates

• poriferans

• cnidarians

Snail, butterfly, bee, and clam are examples of invertebrates. This means that these animals possess this distinguishing characteristic.

• presence of backbone

• absence of backbone

• lack of cranium

• presence of cranium

What are the distinguishing characteristics of invertebrates that differ from vertebrates aside from the absence of backbone?

a. Invertebrates are mostly stronger and bigger than vertebrates.

b. Invertebrates are mostly smaller and weaker than vertebrates.

c. Invertebrates are complex compared to those vertebrates.

d. Invertebrates do not have segmented bodies.

• Invertebrates are mostly stronger and bigger than vertebrates.

• Invertebrates are mostly smaller and weaker than vertebrates.

• Invertebrates are complex compared to those vertebrates.

• Invertebrates do not have segmented bodies.