Structures as different as human arms, bat wings, and dolphin flippers contain many of the same bones, these bones having developed from very similar embryonic tissues. How do biologists interpret these similarities?
A. by proposing that humans, bats, and dolphins share a common ancestor
B. by the principle of convergent evolution
C. by identifying the bones as being homologous structures
D. Three of the statements above are correct.
E. Two of the statements above are correct.
E. Two of the statements above are correct.
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Light behaves as a stream of discrete particles called ________, each carrying a ________ (indivisible packet) of energy
Fill in the blank with correct word.
When researchers exposed Volvox carteri to oxidative stress, what was the result?
a. induction of sex-related genes b. induction of genes for colour c. mating d. death
Chloroplasts contain internal membranes that enclose the
What will be an ideal response?
RNA polymerase II of eukaryotes always requires more than one general transcription factor to initiate transcription.
Answer the following statement true (T) or false (F)