What does the presence of a tail in early human embryos and other chordates suggest about all chordates?
A) Chordates may eventually develop a tail when fully mature.
B) Chordate embryos have greater mutation rates than other organisms.
C) Chordates develop in a very different manner compared to other life forms.
D) Chordates were derived from a common ancestor with this developmental pathway.
D
You might also like to view...
A person with O type blood
A. lacks all of the alleles for ABO blood type. B. lacks A and B antigens. C. is called a universal recipient. D. could not have the Rh factor.
The word __________ actually refers to non-woody plants such as the grasses, and many annual flowers like petunias and marigolds.
A. flower B. herb C. weed D. moss
Marceau is studying small single-celled organisms that contain phospholipid membranes. These organisms can be broadly classified into the domain:
A. Protista B. Fungi C. Animalia D. Bacteria
Glucose is stored in plants as _________ and in animals as _________
A. glycogen; starch B. cellulose; glycogen C. starch; cellulose D. starch; glycogen E. cellulose; starch