Answer:
To which group of macromolecules does this compound most likely belong? B) Protein
Explanation:
If the chemichal analysis of the compound showed carbon, hydrogen, oxygen, nitrogen and phosphorus, we would we talking about nucleic acid. Lipids would not be a possibility because they are made of hydrocarbons. When it comes to carbohydrates, they are made of carbon, hydrogen and oxygen. Protein is the right answer because they are made of carbon, hydrogen, oxygen, nitrogen, and sulfur.
If the dogs are different breeds, their activity levels could be different because of their breed and not the caffeine. The correct option is A.
<h3>Reliability of experiments</h3>
In order for the outcomes of scientific experiments to be reliable, constant variables should be kept constant.
In the illustrated experiments, the breed and age of the experimental dogs have to be the same. It is one of the variables that have to be kept constant throughout the experiment.
If the dogs are different breeds, their activity levels could be different because of their breed and not the caffeine. The same thing is applicable to different ages.
Thus, evaluating this variable and doing right by it will ensure reliability.
More on the reliability of results can be found here: brainly.com/question/1873979
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The answer to this question is C :)
The correct answer choice is answer B.) The fossil record provides evidence of a common ancestor to many species. Hope this helped!
An oceanographer because they study the ocean.
