Answer:
A reference point is a place or object used for comparison to determine if something is in motion. An object is in motion if it changes position relative to a reference point. Objects that are fixed relative to Earth – such as a building, a tree, or a sign - make good reference points.
Explanation:
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Sweat, mucus, tears, and saliva all contain enzymes that kill pathogens.
Answer: People who have received radiation treatment are 15 times more likely to develop benign thyroid tumors relative to does who have not.
Explanation:
Relative risk of benign thyroid tumor = (52/2872)/(6/5055)
= 0.018/0.0012
= 15
Answer:
The incorrect conclusion is D that is finding burial sites of <em>Homo habilis </em>on different countries.
Explanation:
<em>Homo habilis</em> are called as stone age human that are appeared between 2.1 and 1.5 million years ago and they use tools that are made up of stone which they use to kill the animals. They are called as scavengers and they didn't have any knowledge about bury the dead bodies.
<em>Homo neanderthalensis</em> are the extinct species of human that appears at about 40,000 years ago who bury the dead body but they became extinct due to competition and they did't able to adopt the modern techniques.This was the prime factor that they became extinct.
Answer:
the results will likely be recording and could inspire a new hypothesis.
Explanation:
