The correct answer is Option C
The theory of perfect cosmology states the the whole universe is homogeneous and it is isotropic in the space and time. This is the reason the space looks the same everywhere. The space looks the same as it was and will look the same always. This theory works on the principle of steady state theory and emerges.
b. lancelet
c. sea star
d. sand dollar
The study of animals is called zoology.
The correct answer to the question is option B which is lancelet.
A group of classes is called phylum which helps to classify the species having the same characteristics.
According to the question, lancelets belong to the chordate while others were the example of Echinodermata.
Hence, the correct answer to the question is option B.
For more information about the phylum, refer to the link:-
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What is the domain?
Archaea
Bacteria
Eukaryota
Explanation:
Both Bacteria and Archaea are prokaryotes, single-celled microorganisms with no nuclei, and Eukarya includes us and all other animals, plants, fungi, and single-celled protists – all organisms whose cells have nuclei to enclose their DNA apart from the rest of the cell.