True or false: interactions between organisms lead to the evolution of particular traits in those organisms

A. true B. false


Answer: A

Biology & Microbiology

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Feather color in budgies is determined by two different genes, Y and B, one for pigment on the outside and one for the inside of the feather. YYBB, YyBB, or YYBb is green; yyBB or yyBb is blue; YYbb or Yybb is yellow; and yybb is white. A blue budgie is crossed with a white budgie. Which of the following results is NOT possible?

A) green offspring only B) yellow offspring only C) blue offspring only D) green and yellow offspring E) a 9:3:3:1 ratio

Biology & Microbiology

Cephalization is:

A. embryonic development of the head in advance of the rest of the body B. concentration of the sensory organs on the posterior end of the body C. concentration of the sensory organs on the anterior end of the body D. an evolutionary degeneration of the head as seen in some parasites E. a malformation of the head

Biology & Microbiology

In the Galapagos Islands, what led Darwin to suspect that species were not ‘fixed’ throughout time?

What will be an ideal response?

Biology & Microbiology

The production of ATP in photosynthesis is called ________.

A. photorespiration B. photophosphorylation C. catabolism D. the Calvin cycle E. oxidative phosphorylation

Biology & Microbiology