The size of our brains has increased since we became tools users.
Explanation:
Researches have shown that since we became tool users, the size of our brain has increase significantly. This is an evolutionary footprint in us. Our brain size has not always been the same.
- The earliest humans use very crude tools in their hunting.
- Modern man is full of technology and advanced tools.
- To get here, the brain has constantly been changing over time to accommodate more innovative faculties.
From this excerpt, one can deduce that the commentary is trying to prove Susan wrong by linking how the body part of humans have changed to adapt to the environment.
The second option presents the most logical explanation for this.
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Answer:
D. chemical digestion
Explanation:
In chemical digestion, large food molecules are broken down into smaller particles thanks to the action of enzymes present in the digestive juice, undergoing changes in their chemical composition.
Chemical digestion is a process that occurs with the action of enzymes. It starts in the mouth with the action of the enzyme amylase, which is present in saliva and digesting starch. In the stomach, there is the action of gastric juice, consisting of hydrochloric acid and the enzyme pepsin, which acts on protein digestion. In the small intestine, the food undergoes the action of substances produced by the pancreas (alkaline substance containing trypsin and chymotrypsin, enzymes that act on proteins) and by the liver (bile, which contains salts that act on the digestion of fat, is produced by liver but is stored and concentrated in the gallbladder).
Answer is It can be used by scientists everywhere and everything.
Two haploid cells hope this helped
