What was the big piece of the puzzle that was

missing from Darwin’s theory of evolution in
his day?



a. a selection mechanism
b. a method of inheritance
c. a lack of variation in the organisms he
studied
d. a mechanism for reproduction
e. more than one of these


B

Biology & Microbiology

You might also like to view...

Which of the following statements is TRUE? Which of the following statements is TRUE?

Biology & Microbiology

Which of the following WBCs are NOT lymphocytes?

A) cytotoxic T cells B) helper T cells C) NK cells D) M cells E) B cells

Biology & Microbiology

One-celled species of fungi such as Saccharomyces cerevisiae (used in bread-and beer-making) are commonly known as 

A. bacteria. B. viruses. C. yeast. D. molds.

Biology & Microbiology

Which of the following is produced by the light reactions of photosynthesis and consumed by the Calvin cycle?

A. water B. O2 C. NADPH D. sugar

Biology & Microbiology