Module 5: BIOD 102/ BIOD102 (Latest 2026/ 2027 Update) Essential Biology II W/Lab | Questions with Verified Answers | 100% Correct Graded A- Portage Learning.

Module 5: BIOD 102/ BIOD102 (Latest 2026/
2027 Update) Essential Biology II W/Lab |
Questions with Verified Answers | 100% Correct
Graded A- Portage Learning.
Question:

Which of the following is NOT one of the four derived characteristics of
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-


chordates?
a. Pre-anal tail
i,- i,-




b. Dorsal hollow nerve cord
i,- i,- i,- i,-




c. Pharyngeal slits
i,- i,-




d. Notochord?
i,-




Answer:

pre-anal tail i,-




Question:
Cleavage leads to the formation of a multicellular, hollow ___________.
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a. Blastula
i,-




b. Egg
i,-




c. Gastrula
i,-




d. Zygote?
i,-




Answer:

,blastula




Question:

What gives sponges their stiff structure?
i,- i,- i,- i,- i,-




a. Lignin
i,-




b. Firm cell walls
i,- i,- i,-




c. Collagen
i,-




d. Spicules?
i,-




Answer:
spicules




Question:
Which of the following groups displays the four characteristics of a
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chordate but only in its short larval stage?
i,- i,- i,- i,- i,- i,- i,-




a. Urochordates
i,-




b. Vertebrates
i,-




c. Cephalochordates
i,-




d. Invertebrates?
i,-




Answer:

urochordates

, Question:

The process of gastrulation is best described as:
i,- i,- i,- i,- i,- i,- i,-




a. An invagination of the blastula
i,- i,- i,- i,- i,-




b. The cleavage of the zygote
i,- i,- i,- i,- i,-




c. The division of the zygote to the eight cell stage
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-




d. The formation of the blastocoel?
i,- i,- i,- i,- i,-




Answer:

an invagination of the blastula
i,- i,- i,- i,-




Question:

Which of the following is a good description of cnidarians?
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a. They are all mobile, without true tissues, and have stinging cells
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b. They are sessile, without true tissues, and have stinging cells
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-




c. They can be mobile or sessile, have true tissues, & have stinging cells
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-




d. The are mobile, with true tissues, and have stinging cells?
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-




Answer:

they can be mobile or sessile, have true tissues, and have stinging cells
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-




Question:
In humans, what is the remnant of the notochord?
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