The four limitations are
1.It's often impossible to repeat trials on the same subjects.
2-Subjects may report an inaccurate medical history.
3-It can be difficult to control all possible variables.
4-It's impossible to come up with testable scientific questions for human subjects.
Research involving human beings is ultimately necessary for improvements in human health and welfare. Any results about healthy physiology, illness causes, treatment effectiveness, learning, or behavior must be verified by carefully controlled investigations involving human participants. Sadly, not all human research have been valid and beneficial. It is possible to harm people in the name of research. The most well-known instances happened in Nazi Germany. Investigations conducted after the war found several crimes, including experiments in which participants were submerged in extremely cold water to determine how long it would take them to pass away from hypothermia.
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<span>E. chemical complexes of RNA or DNA protected by protein shell
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Answer:
Es importante que una persona tenga estabilidad emocional, social, y economica ante una situacion de embarazo para poder darle buena vida a el ser que lleva dentro.
Explanation:
Es importante tener estabilidad mental para pensar que hacer y como cuidar al bebe, y ser positvos.
Es importante tener estabilidad social para brindarle un ambiente amistoso.
Es importante tener estabilidad economica para poder aportar a las necesidades del bebe.
Answer:
Minimally processed
Explanation:
Foods are said to be minimally processed when they undergo a little treatment so as to preserve them. These treatments might involve the application of heat, drying, and refrigeration so as to preserve them before consumption. Most fresh-cut fruits, vegetables, grains, legumes, dairy products, etc., fall under this range.
These kind of foods still contain a good amount of their nutrients as their original content are not lost due to excessive processing.
It is A. Those are all decomposers, the other answers like C are all animals. Decomposers are are biotic organisms that break down basically dead plants or animals.
