The answer is radioactive dating
Answer:
D to produce energy-carrier molecules
Explanation:
The main function of the Krebs cycle is to produce electron carriers that can be used in the last step of cellular respiration.
I choose to list two. The two that form the basis are evergreens and broadleaf trees.
Answer: dog food brand
Explanation: it doesn’t depend on weight of dog, type of dog, etc.
Answer:
While plant cells have chloroplasts to photosynthesize, they also require ATP for cellular functions, and do use oxygen to break down some of the sugar they produce in order to generate that ATP. They need mitochondria for this.
In particular, at night when there is no light, plants undergo cellular respiration since there is no sunlight to photosynthesize.
They do, however, produce far more sugar and oxygen through photosynthesis than they use up in respiration.