Answers
When doing medical research with human subjects, the following are unavoidable limitations;
It’s often impossible to repeat trials on the same subjects.
Subjects may report an inaccurate medical history.
It can be difficult to control all possible variables
There are ethical or privacy concerns to consider.
Explanation
When doing a medical research that involves human subjects it should be voluntary, informed and consent. The researchers should respect the persons treated as autonomous agents. The volunteers should be protected from physical, mental and emotional harm. The benefits should outweigh the costs.
The statement about secondary production that is false is option c. Generally, an individual's production efficiency will decline as the C:N ratio of its food increases.
<h3>When is productivity and efficiency present?</h3>
Productive efficiency states that it is not possible to generate more of one good without producing less of another good given the inputs and technology at hand.
Note that Production efficiency is a word used in economics to describe the point at which an economy or other entity can no longer produce more of one good without reducing the level of production of a different one.
Hence, It's more important to focus on the caliber of your job than just the pace. Therefore, you have achieved improved production efficiency if your company increased its output from 1,000 bags to 1,500 bags of coffee while generating less waste, spending less money, and utilizing fewer resources.
Learn more about individual's production efficiency from
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Below are the statements matched to their correct term:1. The cell that begins the process of cell division-
PARENT CELL<span>
2. The first part of mitosis in which the chromosomes shorten and thicken, the nucleolus breaks down, and the nuclear envelope disintegrates -
PROPHASE3. Two rod-like strands replicated by a chromosome during interphase; becomes a daughter chromosome by the end of cell division-
SISTER CHROMATIDS
</span><span>
4. a system of fibers stretching from one end of a mitotic cell to the other -</span>
SPINDLE APPARATUS <span>
5. The phase of mitosis in which the daughter chromosomes have reached opposite ends of the cell, the nuclear envelope and nucleolus reform, and the process of cytokinesis begins -
TELOPHASE </span>
Answer:
El cuadro no está presente pero las diferencias principales entre células eucariotas y procariotas son:
Eucariotas:
Tienen núcleo
Tienen organelas
Tienen Vacuolas
Tienen Citoesqueleto
Tienen Cloroplastos
El ADN está asociado a proteínas
El ADN es lineal
Presentan mitocondrias
Presentan un sistema de endomembranas
Procariotas:
No tienen núcleo
No tienen vacuolas
No tienen cloroplastos
No tienen organelas
El ADN no está asociado a proteínas
El ADN es circular
Presenta mesosomas
Explanation:
Las células procariotas son más primitivas que las eucariotas, por ende, sus estructuras son más simples. Las células procariotas están en organismos unicelulares tales como las bacterias, mientras que las células eucariotas están en organismos unicelulares y pluricelulares como en plantas, animales, u hongos. La diferencia más notoria entre ambos tipos de células es la ausencia de núcleo en las procariotas haciendo que el ADN está disperso en el citoplasma mientras que en las células eucariotas, el ADN está dentro del núcleo celular.
The sun is the original source for ALL food webs
