Answer:
Weather conditions
Explanation:
Food can be limited based on location, however, scientists can control what kind of food it is. Soil can be tested and experimented on. There can be a lot of it and different kinds. Space is fought over because of territories and is limited compared to how many people and animals there are. Weather is not something that can be controlled in an experiment since it is sporadic.
I think it is C, since it does occur on land life, and I think it also occurs in marine life.
Increases
In women that are pregnant, the effects of substances are far more adverse than they would be in a normal person, especially if the woman is taking more than one. For this reason, it is important for pregnant women to take as much care as possible of their bodies and refrain completely from smoking and drinking alcohol, as both of these activities are detrimental towards the fetus's health. Pregnant women should even avoid second hand smoke from cigarettes.
It really is between C.or D. I say it is D. because you need the <span>experimental subjects in the best condition possible to get the best results.</span>
Answer:
Cellular respiration uses energy in glucose to make ATP. Aerobic (“oxygen-using”) respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport.
Explanation
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