Chordates

Which of the following represents invertebrate chordates?

• tunicates

• lampreys

• snakes

• sharks

Which of the following is a characteristic of vertebrates?

• a skull and backbone consisting of vertebrae
• a skeleton made of bone and four legs
• a backbone consisting of vertebrae and a jaw
• four legs and a jaw

What is the difference between a notochord and a backbone?

• A notochord is flexible and the backbone is not

• All chordates have a backbone, but not a notochord

• All vertebrates have a notochord sometime during their development, but not a backbone

• A backbone is flexible, but a notochord is not

Tags

NGSS.MS-LS4-2

Flexible rod-like structure extending the length of the body.

• Notochord

• Nerve cord

• Gill slits

• Postanal tail

Which of the following is a characteristic of vertebrates?

• They have an internal skeleton

• They lack a central nervous system

• Arthropods are an example

• All chordates are vertebrates

There are five categories of vertebrates.  Which one is not a vertebrate?

• Mammals
• Birds
• Arthropods
• Reptiles

Which of the following is not in the phylum chordata?

• Tunicates

• Mammals

• Jellyfish

• Fishes

How do tunicates get energy?

• They use photosynthesis

• They are suspension feeders

• They are predators

• They don't need energy

Contrast sponges with tunicates.

• They are both suspension feeders

• Sponges are suspension feeders and tunicates are predetors

• They both are chordates

• Tunicates are chordates and sponges are not

Tags

NGSS.MS-LS4-2

Which of the following is NOT required for an organism to be classified as a chordate?

• A notochord

• A nervous system

• a backbone

• gill slits

Tags

NGSS.MS-LS4-2