Question

In: Biology

Which of the following is not a characteristic of the Porifera? channel like openings throughout the...

Which of the following is not a characteristic of the Porifera?

		channel like openings throughout the body
		asymmetry
		vase shaped body
		organs

Which statement best explains how adult lancelets differ from adult tunicates?

		Adult lancelets are parasitic and adult tunicates are not.
		Adult tunicates swim and adult lancelets do not.
		Adult tunicates are parasitic and adult lancelets are not.
		Adult lancelets swim and adult tunicates do not.

Kathy works at a zoo and cares for amphibians. What is a unique feature of amphibians in comparison to reptiles that would impact upon amphibian care?

		Amphibians lay hard shelled eggs
		Amphibians have tails
		Amphibians undergo metamorphosis
		Amphibians have scaly skin

The word chondri in the term Chondrichthyes means the following.

		bone
		soft
		cartilage
		flexible

Most biologists agree that animals arose from the following organism

		a flagellated protist.
		a ciliated protist.
		a yeast.
		fungi.

Which of the following statements represents the difference between roundworms and flatworms.

		Roundworms have no nervous system but flatworms do
		Roundworms are pseudocoelomates but flatworms are acoelomates
		Flatworms have no nervous system but roundworms do
		Flatworms have a coelomic cavity but roundworms do not

The following animal has a body cavity lined completely with tissue:

		nematode
		mollusk
		turbellarian
		cestode

Which term explains a lined body cavity derived from mesodermal embryonic tissue?

		pseudocoelom
		coelom
		acoelom

Which term explains a respiratory tube that conducts air to the tissues in some arthropods, such as insects?

		pharynx
		trachea
		tubules
		spiracle

Solutions

Expert Solution

1. Which of the following is not a characteristic of the Porifera?

Answer is: Organs.

2. Which statement best explains how adult lancelets differ from adult tunicates?

Answer is: Adult lancelets swim and adult tunicates do not.

3. Kathy works at a zoo and cares for amphibians. What is a unique feature of amphibians in comparison to reptiles that would impact upon amphibian care?

Answer is: Amphibians undergo metamorphosis.

4. The word chondri in the term Chondrichthyes means the following.

Answer is: Cartilage.

5. Most biologists agree that animals arose from the following organism

Answer is: a flagellated protist.

6. Which of the following statements represents the difference between roundworms and flatworms.

Answer is: Roundworms are pseudocoelomates but flatworms are acoelomates

7. The following animal has a body cavity lined completely with tissue:

Answer is: nematode

8. Which term explains a lined body cavity derived from mesodermal embryonic tissue?

Answer is: coelom

9. Which term explains a respiratory tube that conducts air to the tissues in some arthropods, such as insects?

Answer is: spiracle

gladiator answered 1 year ago

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