Ecosystem productivity is principally limited by a. sunlight and nutrient availability
b. water and nutrient availability
C. the availability of time and nutrients
d. none of the above
Please select the best answer from the choices provided
А
ОВ
0 ООО
С

What is one energy transformation that is taking place in the photo? radiant energy to thermal energy thermal energy to nuclear energy chemical energy to thermal energy radiant energy to chemical energy

8) animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. d) a dog is getting hot in the sunlight, so he moves to a shaded area.

Which of these is not a nucleotide base found in dna?