Cnidarian Relationships and Characteristics

Organisms on coral reef compete for space and light.

• True

• False

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

Which of the following is not a major factor that influences reef growth?

• color

• pollution

• temperature

• light

Tags

NGSS.MS-ESS3-4

What type of relationship does coral have with zooxanthellae?

• symbiotic

• parasitic

• commensalistic

• harmful

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

NGSS.MS-LS2-2

Identify the type of symmetry cnidarians have.

• Radial

• Bilateral

• Assymetrical

All cnidarians are

• autotrophs

• heterotrophs

• producers

Tags

NGSS.MS-LS2-3

Identify the body form pictured below:

• Medusa

• Polyp

Identify the body form pictured below.

• Polyp

• Medusa

Tags

NGSS.MS-LS4-2

Which statement best describes the nematocyst?

• An organelle consisting of a coiled, thread-like stinger used to ward off enemies or to capture prey.

• An organelle consisting of a coiled, thread-like stinger used to attract mates.

• A gastrovascular cavity used to ward off enemies and capture prey.

• A canal extending from the four-chambered stomach to distribute food.

According to the Phylogenetic tree below, which classes of sponge contain siliceous spicules?

• Hexactinellida

• Demospongia

• Calcarea

Identify the type of symmetry Phylum Porifera has.

• Asymmetrical

• Radial

• Bilateral