Answer:
There is no control.
Explanation:
If the scientist was testing something based on the different temperatures, they would need the amount of time in the oven to be the same for each cookie so that they can compare them. Without the times being the same, the scientist would not be able to tell whether the temperature or the time in the oven caused the differences in the cookies.
Answer: The answer is D) Conduction.
Explanation:
not sure what you mean, but I think you're talking about the bonds i suppose. Anti-parallel strands are connected by H-bonds, whereas the sugar and phosphorus are bonded by covalent phosphodiester bonds.
Respiration and Photosynthesis
The light-independent reaction for obtaining energy (I think this is what you are talking about) occurs within the organism. This is because cellular respiration does not require light, seeing as how most humans do not need light directly (although they need the Sun for photosynthesis to occur in plants so that the plants produce Oxygen) in order to survive. Hopefully this helps!