Chapter 26 – Sponges and Cnidarians B

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Topic 1 Topic 2 Topic 3 Topic 4 Topic 5

FINAL ROUND

Topic 1:

$100 Question

The body symmetry of a cnidarian is

a. radial in the medusa and bilateral in the polyp stages.

b. radial in both the medusa and the polyp sages.

c. bilateral in both the medusa and polyp stages.

d. bilateral in the medusa stage and radial in the polyp stage.

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ANSWER

Topic 1:

$100 Answer

The body symmetry of a cnidarian is

a. radial in the medusa and bilateral in the polyp stages.

b. radial in both the medusa and the polyp sages.

c. bilateral in both the medusa and polyp stages.

d. bilateral in the medusa stage and radial in the polyp stage.

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Topic 1:

$200 Question

How can an extremely diverse coral reef live in water that contains few nutrients?

a. corals obtain nutrients from the runoff from land.

b. reef-building corals live symbiotically with photosynthetic algae.

c. corals recycle nutrients.

d. fishes maintain the ecological balance of coral reefs.

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ANSWER

Topic 1:

$200 Answer

How can an extremely diverse coral reef live in water that contains few nutrients?

a. corals obtain nutrients from the runoff from land.

b. reef-building corals live symbiotically with photosynthetic algae.

c. corals recycle nutrients.

d. fishes maintain the ecological balance of coral reefs.

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Topic 1:

$300 Question

Unlike plant cells, animal cells do not have

a. nuclei.

b. organelles.

c. cell walls.

d. cell membranes

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ANSWER

Topic 1:

$300 Answer

Unlike plant cells, animal cells do not have

a. nuclei.

b. organelles.

c. cell walls.

d. cell membranes

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Topic 1:

$400 Question

A blastula is a stage in the development of an embryo that consists of

a. a solid ball of cells.

b. a hollow ball of cells.

c. a flat sheet of cells.

d. a folded sheet of cells.

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ANSWER

Topic 1:

$400 Answer

A blastula is a stage in the development of an embryo that consists of

a. a solid ball of cells.

b. a hollow ball of cells.

c. a flat sheet of cells.

d. a folded sheet of cells.

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Topic 1:

$500 Question

Some biologists believe that sponges evolved

a. from seed plants.

b. as the result of asexual reproduction.

c. independently of all other animals.

d. from hydras.BACK TO GAME

ANSWER

Topic 1:

$500 Answer

Some biologists believe that sponges evolved

a. from seed plants.

b. as the result of asexual reproduction.

c. independently of all other animals.

d. from hydras.BACK TO GAME

Topic 2:

$100 Question

Organisms that spend their entire adult lives attached to one spot are said to be

a. flagellated.

b. symmetric.

c. heterotrophic.

d. sessile.

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ANSWER

Topic 2:

$100 Answer

Organisms that spend their entire adult lives attached to one spot are said to be

a. flagellated.

b. symmetric.

c. heterotrophic.

d. sessile.

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Topic 2:

$200 Question

The upper side of an organism is its

a. dorsal side.

b. ventral side.

c. anterior side.

d. posterior side.

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ANSWER

Topic 2:

$200 Answer

The upper side of an organism is its

a. dorsal side.

b. ventral side.

c. anterior side.

d. posterior side.

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Topic 2:

$300 Question

Muscle tissue exerts force by becoming

a. cooler.

b. warmer.

c. longer.

d. shorter.

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ANSWER

Topic 2:

$300 Answer

Muscle tissue exerts force by becoming

a. cooler.

b. warmer.

c. longer.

d. shorter.

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Topic 2:

$400 Question

Which of the three cell layers in animal embryos gives rise to muscles and much of the circulatory, reproductive, and excretory systems?

a. endoderm

b. mesoderm

c. protostome

d. ectoderm BACK TO GAME

ANSWER

Topic 2:

$400 Answer

Which of the three cell layers in animal embryos gives rise to muscles and much of the circulatory, reproductive, and excretory systems?

a. endoderm

b. mesoderm

c. protostome

d. ectoderm BACK TO GAME

Topic 2:

$500 Question

Which is NOT associated with sponges?

a. choanocytes

b. medusa

c. spicules

d. gemmules

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ANSWER

Topic 2:

$500 Answer

Which is NOT associated with sponges?

a. choanocytes

b. medusa

c. spicules

d. gemmules

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Topic 3:

$100 Question

An animal that ha distinct left and right sides shows

a. radial symmetry.

b. bilateral symmetry.

c. segmentation.

d. Several planes of symmetry.

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ANSWER

Topic 3:

$100 Answer

An animal that ha distinct left and right sides shows

a. radial symmetry.

b. bilateral symmetry.

c. segmentation.

d. Several planes of symmetry.

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Topic 3:

$200 Question

Many small aquatic organisms move oxygen and carbon dioxide through their skin by the process of

a. extracellular digestion.

b. muscular contractions.

c. cephalization.

d. diffusion.

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ANSWER

Topic 3:

$200 Answer

Many small aquatic organisms move oxygen and carbon dioxide through their skin by the process of

a. extracellular digestion.

b. muscular contractions.

c. cephalization.

d. diffusion. BACK TO GAME

Topic 3:

$300 Question

When an animal’s environment changes, sexual reproduction improves a species’ ability to

a. react.

b. evolve.

c. increase its numbers rapidly.

d. produce genetically identical offspring.

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ANSWER

Topic 3:

$300 Answer

When an animal’s environment changes, sexual reproduction improves a species’ ability to

a. react.

b. evolve.

c. increase its numbers rapidly.

d. produce genetically identical offspring.

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Topic 3:

$400 Question

A parasite is a type of

a. vertebrate.

b. detritivore.

c. algae.

d. symbiont.

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ANSWER

Topic 3:

$400 Answer

A parasite is a type of

a. vertebrate.

b. detritivore.

c. algae.

d. symbiont.

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Topic 3:

$500 Question

The benefit of sponge’s producing gemmules is that gemmules

a. are a form of sexual reproduction.

b. help to filter food for the sponge.

c. defend the sponge against predators.

d. allow the sponge to survive long periods of harsh conditions.

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ANSWER

Topic 3:

$500 Answer

The benefit of sponge’s producing gemmules is that gemmules

a. are a form of sexual reproduction.

b. help to filter food for the sponge.

c. defend the sponge against predators.

d. allow the sponge to survive long periods of harsh conditions.

BACK TO GAME

Topic 4:

$100 Question

In jellyfish

a. both polyp and medusa are diploid.

b. both polyp and medusa are haploid.

c. the medusa is diploid and the polyp is haploid.

d. the medusa is haploid and the polyp is diploid.

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ANSWER

Topic 4:

$100 Answer

In jellyfish

a. both polyp and medusa are diploid.

b. both polyp and medusa are haploid.

c. the medusa is diploid and the polyp is haploid.

d. the medusa is haploid and the polyp is diploid.

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Topic 4:

$200 Question

The nerve cells of cnidarians make up a(an)

a. brain.

b. hydrostatic skeleton.

c. nerve net.

d. ocelli.

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ANSWER

Topic 4:

$200 Answer

The nerve cells of cnidarians make up a(an)

a. brain.

b. hydrostatic skeleton.

c. nerve net.

d. ocelli.

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Topic 4:

$300 Question

Coral bleaching is a serious ecological threat because it

a. causes corals to overpopulate the area.

b. destroys the beauty of a coral reef.

c. pollutes the water.

d. causes corals to die.BACK TO GAME

ANSWER

Topic 4:

$300 Answer

Coral bleaching is a serious ecological threat because it

a. causes corals to overpopulate the area.

b. destroys the beauty of a coral reef.

c. pollutes the water.

d. causes corals to die. BACK TO GAME

Topic 4:

$400 Question

The class Scyphozoa contains

a. sea anemones.

b. jellyfishes.

c. corals.

d. hydras.

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ANSWER

Topic 4:

$400 Answer

The class Scyphozoa contains

a. sea anemones.

b. jellyfishes.

c. corals.

d. hydras.

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Topic 4:

$500 Question

Coral reefs occur in areas where there are

a. high levels of sediments.

b. very deep waters.

c. very cool waters.

d. high levels of light.

BACK TO GAME

ANSWER

Topic 4:

$500 Answer

Coral reefs occur in areas where there are

a. high levels of sediments.

b. very deep waters.

c. very cool waters.

d. high levels of light

BACK TO GAME

Topic 5:

$100 Question

In a hydra, the gastroderm and the epidermis are separated by a jellylike

a. mesoglea.

b. body cavity.

c. medusa.

d. mesoderm.BACK TO GAME

ANSWER

Topic 5:

$100 Answer

In a hydra, the gastroderm and the epidermis are separated by a jellylike

a. mesoglea.

b. body cavity.

c. medusa.

d. mesoderm.BACK TO GAME

Topic 5:

$200 Question

A characteristic of cnidarians is that they are

a. found only in warm, tropical waters.

b. named for their body symmetry.

c. attached to a surface throughout life.

d. carnivorous animals.

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ANSWER

Topic 5:

$200 Answer

A characteristic of cnidarians is that they are

a. found only in warm, tropical waters.

b. named for their body symmetry.

c. attached to a surface throughout life.

d. carnivorous animals

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Topic 5:

$300 Question

In a cnidarian, cells that sense gravity are

a. amoebocytes.

b. cnidocytes.

c. ocelli.

d. statocysts.

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ANSWER

Topic 5:

$300 Answer

In a cnidarian, cells that sense gravity are

a. amoebocytes.

b. cnidocytes.

c. ocelli.

d. statocysts.

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Topic 5:

$400 Question

Cnidarians have two basic body types, a medusa and a(an)

a. larva.

b. osculum.

c. polyp.

d. tentacle.

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ANSWER

Topic 5:

$400 Answer

Cnidarians have two basic body types, a medusa and a(an)

a. larva.

b. osculum.

c. polyp.

d. tentacle.

BACK TO GAME

Topic 5:

$500 Question

Which are the simplest animals to have body symmetry?

a. sponges

b. cnidarians

c. nematocysts

d. algaeBACK TO GAME

ANSWER

Topic 5:

$500 Answer

Which are the simplest animals to have body symmetry?

a. sponges

b. cnidarians

c. nematocysts

d. algaeBACK TO GAME

FINAL ROUND Question

Question:

a. Choice 1

b. Choice 2

c. Choice 3

d. Choice 4

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ANSWER

FINAL ROUND Answer

Question:

a. Choice 1

b. Choice 2

c. Choice 3 (correct answer)

d. Choice 4

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