What feature of the fossil Pikaia led scientists to classify it as a chordate?

A. Tentacles

B. A definite head region

C. A notochord

D. Segmentation

What is a cell how does it effect the body

Both dna and rna can store information, yet dna is the major information storage molecule in most cells. what are the advantages of using dna for information storage instead of rna?

What is the backbone of DNA made up of?

Biologie clasa 7 man. p. 114. ex. 2

Why must starch be digested before it's building block molecules can enter the bloodstream

Which of the following is not a characteristic shared by all chordates? fins hollow nerve chord pharyngeal pouches notochord

Alicia is not sure of the difference between a food web and a food chain. write a paragraph for alicia that explains the difference between a food web and food chain.

The distance north or south from the equator

The narrowest taxon in the Linnaean system is the genus, order, or species

What food source is available to animals in benthic zone and marine habitats