Answer:
2)
Explanation:
The positive control is the treatment where bacteria grew without lead. Since positive control indicates the presence of bacteria in the experimental conditions, it is possible to confirm that they only death in presence of this metal. However, it is important to note that it is imperative to repeat this experiment three times and also to include a negative control in order to confirm these results.
Answer: If you want to reduced your energy intake then you have to carefully controlled your diet with such food as;
-Breakfast cereal
-white bread
-paste
-rice
-yogurts and other food with added sugar .
As well as drinks like Alcohol or coffee
That's all Hope this answers are helpful.
Answer:
Mutation and Recombination
A. Photosynthesis and cellular respiration
B. Cellular respiration and decay
C. Decay and fossil fuel formation
Explanation:
Photosynthesis, cellular respiration, decay and fossil fuel formation are all processes that are part of the carbon cycle.
In the carbon cycle, carbon in different forms moves in the environment.
- During photosynthesis, green plants use carbon dioxide gas to manufacture their own food.
- Cellular respiration release carbon dioxide as waste product into the atmosphere.
- When plants and animals dies and decay, carbon dioxide is release from their tissues by the activities of decomposers.
- Fossil fuel formation removes carbon by accumulation of the organic matter of plants and animals.
Learn more:
Biogeochemical cycle brainly.com/question/3509510
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Some of the important questions to be asked should be: Is the procedure of obtaining the results accurate? If not, by how much is its reliability? Are the results useful for further scientific research? What can you recommend to others who might want to make the same scientific conclusions?
