Protostomes are animals in which the embryonic blastopore becomes theMultiple choice question.mouthanusmesodermectoderm
Question
Protostomes are animals in which the embryonic blastopore becomes theMultiple choice question.mouthanusmesodermectoderm
Solution
The correct answer is "mouth". Protostomes are a group of animals that includes insects, mollusks, and annelids. The term "protostome" comes from the Greek words for "first mouth." In these animals, the first opening that develops in the embryo, the blastopore, becomes the mouth. This is one of the key features that distinguishes protostomes from deuterostomes, in which the blastopore becomes the anus.
Similar Questions
Of the following combination of statements about protostomes and deuterostomes, which choice is correct?Group of answer choicesProtostomes are animals in which the mouth develops from the blastopore, and the anus or anal pore develops from the second opening. Deuterostomes are animals in which the anus develops from the blastopore and the mouth develops secondarily later in their development.Protostomes are animals in which the mouth develops from the blastopore, and the anus or anal pore develops from the second opening. Deuterostomes are animals in which the mouth develops from the blastopore and the anus develops secondarily later in their development.Protostomes are animals in which the anus develops from the blastopore, and the mouth develops from the second opening. Deuterostomes are animals in which the anus develops from the blastopore and the mouth develops secondarily later in their development.Protostomes are animals in which the mouth or anus develops from the blastopore, depending on the species. Deuterostomes are animals in which the mouth and anus develops from the blastopore, depending on the species.
In bilaterally symmetrical animals, the mouth forms first in animals with ______ embryonic development, and the anus forms first in animals with ______ embryonic development.Multiple choice question.protostome; deuterostomechelicerate; mandibulatemandibulate; cheliceratedeuterostome; protostome
The two major groups of protostome are Lophotrochozoa andMultiple choice question.Ecdysozoa.Arthropoda.Insecta.Mollusca.
Protostome animals called ______ include chitons, clams, scallops, snails, slugs, octopuses, and squids.Multiple choice question.annelidsarthropodscnidariansmollusks
The division of the animal body into repeated parts is calledMultiple choice question.protostome development.deuterostome development.gastrulation.segmentation.
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