During embryonic development, if the anus develops before the mouth, the organism is a

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The question says, 'during embryonic development, if the anus develop before the mouth, the organism is a The correct option is B. In deuterostome during embryonic development anus develops first from or near embryonic blastopore, mouth develops later at some distance from the blastopore or from the opposite end.
Q. During embryonic development, if the anus develops before the mouth, the organism is a .

A. During embryonic development, if the anus develops before the mouth, the organism is a deuterostome.
It’s a girl because they be talking out their
During embryonic development, if the anus develops before the mouth, the organism is a deuterostome. This means "second mouth" . This is opposing to the protostomes which the blastophore becomes the mouth. Deuterostomes are also known as enterocoelomates because their coelom develops through enterocoely. 

If the anus develops before the mouth, the organism is a deuterostome, which means  "second mouth." It is a sister clade of Protostomia, with which it forms the Nephrozoa clade. The proterostomic develop the mouth first. Deuterostomes are also known as enterocoelomates because their coelom develops through enterocoely. 

Explanation:

https://www.mun.ca/biology/scarr/Protostomes_vs_Deuterostomes.html

https://en.wikipedia.org/wiki/Deuterostome

https://ucmp.berkeley.edu/phyla/deuterostomia.html

https://www.weegy.com/?ConversationId=6CB3C815

Answer : The correct for the blank is-

deuterostome.

Deuterostomes are the organisms in which anus develops first from the first opening of the embryonic development, which is blastopore.

In other words, blastopore develops into anus first (unlike protostomes where mouth is develped from the blastopore) in case of deuterostome.

Example of Deuterostomes - Chordates and Echinoderms.

A deuterostome.

Explanation: In embryonic development, protostomes’s first opening develops as a mouth, while the deuterostome develops as an anus, prior to a mouth.

During embryonic development, if the anus develops before the mouth, the orgaism is a deuterostome.
During embryonic development, if the anus develops before the mouth, the orgaism is a deuterostome.


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