Invertebrates

Which of these invertebrates doesn't have a nervous system?

• Porifera

• Cnidaria

• Arthropods

• Mollusk

Cnidaria has a central opening surrounded by .... (use lower case letters)

This invertebrate has 10 legs with 2 antenna.

• Crustaceans

• Mollusks

• Arachnids

• Echinoderms

What makes invertebrates distinguishable with vertebrates?

• Having legs

• Not having a backbone

• Not giving birth

• Having closed circulatory system

How can we contrast cnidaria and mollusks?

• Cnidaria has a nervous system, but mollusk doesn't.

• Mollusk has a muscular foot but cnidaria doesn't.

• Cnidaria has a circulatory system but mollusk doesn't.

• Mollusks don't have external shells but cnidaria has.

Tags

NGSS.MS-LS4-2

Porifera doesn't have (a) ... (use lower case letters)

Select all that apply for annelids.

• Annelids have soft bodies.

• Annelids have segmented bodies.

• Annelids have a soft tubed shape.

• Annelids can live inside other organisms.

• Annelids have an open circulatory system.

In which invertebrate phylum/sub-phylum is this organism?

• Porifera

• Arthropods

• Mollusca

• Echinoderms

Tags

NGSS.MS-LS4-2

This is an organism that doesn't have a circulatory and nervous system. In which invertebrate phylum/sub-phylum is this organism?

• Annelids

• Crustaceans

• Porifera

• Cnidaria

Select all that apply for myriapods.

• They have segments in their bodies.

• They have many legs.

• They have wings.

• They mostly have 5 eyes.