Answer:
First question: 2. Hold constant throughout the entire experiment
Second question: 2. One you change or manipulate. Everything depends on what you do to this variable.
Explanation:
Answer: Lipids have diverse structures, but the most common functional groups are ester (both carboxylate and phosphate) and alcohol groups.
Explanation:
1. Pancreas makes Bicarbonate to Neutralize Acid
.
2. Makes an equal production of enzyms and Bicarbonate
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3. Produces more enzyms to Digest fat
.
Soil forms as a result of weathering and biological activity that breaks down and changes soil materials over long periods of time.
Answer: D mechanical weathering
the problem states that there are no variables causing the disintegration happening therefore it is happening naturally which is mechanical weathering
