Which one of these exhibits a notochord at some stage in its development. a. a cat b. a hydra c. a brittle star d. a tapeworm

The correct answer option is A. a cat.

Explanation:

From the given options, a cat is an animal which exhibits a notochord at some stage in its development.

Cats, being a mammal, have backbones which puts them in the category of phylum Chordata and the subphylum Vertebrata. The chordates, unlike the members of other phyla, have a notochord which is formed during some stage of their development to support the body.

. the sierra madre fault zone of southern california

. the san andreas fault california

answer; blank(1); cervical; blank(2); lumbosacral;