Can a dichotomous key have the same question twice

How is the insulin gene removed from the strand of human dna?

Sunlight is energy that comes from the sun. How is that energy produced? Question 6 options: A) Uranium atoms split apart, releasing nuclear energy. B) Molecules break down, releasing chemical energy.

How does a catalyst speed up chemical reactions?

A period during which the embryo of a seed is alive but not growing is a. dispersal. b. fertilization. c. germination. d. dormancy.

After noticing changes in your vision, you take a trip to the eye doctor. She tells you that, to improve your vision, she needs to perform surgery to slightly flatten the cornea. What is wrong with your eyes? The retina is not functioning correctly.

In watermelons striped green is dominant to solid green. In a garden of 100 plants 25 are solid green. What percentage would be expected to be heterozygous striped? Question 4 options: 0% 25% 50% 75%

How are Gametes, Sporophyte, Gametophyte, and Zygote related?

Identify the organelle with the following structure or function from the list below: the jelly-like inside of the cell A) cytoplasm B) ER C) cell membrane D) nucleus

which two of the following are the least dense materials rock, pillow, bottle of soda or a loaf of bread

The food handler should guard against hotspots in cooling units by