What is the significance of the fossil Archaeopteryx?
a. It establishes the time sequence of the transition from dinosaur to birds.
b. The bones of this animal were the first to be used for radiometric dating, which allowed
the absolute age of the fossil to be determined.
c. It was the first fossil discovered from which both physiological and anatomical data could
be gathered.
d. It was the first reptile–bird fossil discovered and helped to establish the relationship
between birds and dinosaurs.
D
You might also like to view...
Certain drugs use RNA interference as a mechanism of action. What molecule would the active compounds of these drugs be composed of?
A. Carbohydrate B. Steroid C. Protein D. Nucleic acid E. Small ion
Which element is considered an essential micronutrient for plants?
a. gold b. carbon c. uranium d. nitrogen e. copper
Which structure of the virus in the accompanying figure is the capsid?
a. 1
b. 2
c. 3
d. 4
e. 5
Human skin color is the result of
A) simple dominance. B) sex-linked recessive inheritance. C) codominance. D) one pair of genes showing incomplete dominance. E) polygenic inheritance.