Problem

Developmental changes a. require growth, differe…

01:56

Problem 3 Medium Difficulty

Which of these stages is mismatched?
a. cleavage—cell division
b. blastula—gut formation
c. gastrula—three germ layers
d. neurula—nervous system
e. Both b and c are mismatched.

Answer

(b) blastula-gut formation

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Dr. Bridgette D.

University of North Carolina at Wilmington

Watch More Solved Questions in Chapter 42

Problem 1

Problem 2

Problem 3

Problem 4

Problem 5

Problem 6

Problem 7

Problem 8

Problem 9

Problem 10

Problem 11

Problem 12

Problem 13

Problem 14

Problem 15

Video Transcript

Hello, everybody. Today I will be helping you with the third problem of the Chapter 42 problems. And this question is asking which stage is mismatched. So out of all of these answers a through E, there is a stage and it is mashed with a definition. So what I would do is I would go through and see which ones are true. So a says cleavage and cell division. So that is true. So cleavage cleavage does yield cell division. So that is true. So we put a checkmark, but that is false because we're looking at the one that's mismatched. Then it says Blast Ula and got formacion. Well, that does not really make sense, because if you're thinking about it in, there's a process to all of this and it's, um, forming some stuff on the block. She was very early in the whole entire formation, So why would it developed the gut first and that that doesn't really make sense. So we'll put it out by because that doesn't really seem like it matches. And then you have the Gasparilla, which ah, three dream layers, which is true. So we know that's true. So we know that one's wrong and we have D which says the neural A which is the nervous system. So it is true. I mean, if you look at the word uh, no Ruda runt, you have this right here, Nure, And that is typically associated with the nervous system neurons, etcetera. So just from this word itself, through of it, you could you can associate it with the nervous system just based off the root of the word and then east as B and C are mismatched. But see is true. So we know this one's false and that only leaves be so actually, the blast. Sheila does not develop the gut. Actually, it's a hollow ball of cells having a fluid filled cavity so that it kind of like protects the embryo, et cetera. It just helps for development more than anything. So I hope you found this a very, very helpful. And I hope you have a great day

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