258943
Among the following, which one is not a deuterostome?
1 Sea urchin
2 Earthworm
3 Sand dollar
4 Ichthyophis
Explanation:
Earthworm is not a deuterostome. Deuterostome is an animal from phylum which means "second mouth". They include Echinodermata and Chordata. An earthworm is a terrestrial invertebrate that belongs to the phylum Annelida. They exhibit a tubewithin-a-tube body plan.
J and K CET-2011
Biological Classification
258944
Which of the following statements are correct with regard to deuterostomes? I. The blastopore develops into anus in adult II. The blastopore develops into mouth in adult III. Cleavage is radial and indeterminate IV. Cleavage is spiral and determinate
1 I and III
2 I and II
3 II and IV
4 II and III
Explanation:
Deuterostomes are a super-phylum of animal they are distinguished by their embryonic development In deuterosome the first opening (blastospore) becomes the anus while in protostomes becomes the mouth. They are also known as enterocoelomate because their colon develops through enterocoely. The cleavage is radial and indeterminate.
258943
Among the following, which one is not a deuterostome?
1 Sea urchin
2 Earthworm
3 Sand dollar
4 Ichthyophis
Explanation:
Earthworm is not a deuterostome. Deuterostome is an animal from phylum which means "second mouth". They include Echinodermata and Chordata. An earthworm is a terrestrial invertebrate that belongs to the phylum Annelida. They exhibit a tubewithin-a-tube body plan.
J and K CET-2011
Biological Classification
258944
Which of the following statements are correct with regard to deuterostomes? I. The blastopore develops into anus in adult II. The blastopore develops into mouth in adult III. Cleavage is radial and indeterminate IV. Cleavage is spiral and determinate
1 I and III
2 I and II
3 II and IV
4 II and III
Explanation:
Deuterostomes are a super-phylum of animal they are distinguished by their embryonic development In deuterosome the first opening (blastospore) becomes the anus while in protostomes becomes the mouth. They are also known as enterocoelomate because their colon develops through enterocoely. The cleavage is radial and indeterminate.
