According to historians, the issue of _______________ first became a major point of debate and disagreement during the Constitut
1 answer:
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Answer:
b. A study in which subjects were assigned to study activities based on an undesirable or unflattering physical characteristic as assessed by members of the research team.
Explanation:
In case the subjects were used in the study judging by their unconventional, undesirable or unflattering looks and physical characteristics, it is better not to tell them the additional information after the study is concluded.
<u>In that case, reveling the additional information can result in subjects being hurt, offended and angry, the reason for choosing them may seem unethical and wrong, and the researcher (and the study) could be put in the problem.</u>
The subjects should not be harmed in the process and this study might cause them emotional harm.
Answer:
Trilobites
Explanation:
The Phanerozoic Eon is characterized by the presence of organisms that possessed hard shells as an adaptation to the environmental conditions. Among these organisms, the most common hard-shelled animals were the trilobites.
Trilobites were present during most of the Paleozoic Era, which belongs to the Phanerozoic Eon. These animals were marine organisms with remarkable and unique phenotypes.
The body of a trilobite was composed of three segments: the cephalon, the thorax, and the pygidium (tail). In addition, they possessed an exoskeleton composed of chitin, which was the reason behind their hard shells. They shed their exoskeletons to be able to grow.
Trilobites are currently extinct.
