With a light microscope one can view the nucleus and endoplasmic reticulum, large vacuoles etc
The resolution of a light microscope is dependent on the wavelength of light that is the main beam of illumination. Light has approximately 0.4 um (UV)- 0.7um (Infrared) wavelength. Organelles smaller than about 0.5 um will be difficult to discern with a light microscope.
With an electron microscope one can view, in addition, even the ribosomes and mitochondria, chromosomes, tubules etc.
An electron microscope can discern very minute details of a cell. This is because its resolution is dependent on the very small wavelength of a beam of electrons which is approximately 0.002 um (about 10,000 times powerful than a light microscope)
Answer:
D. A hormonal signaling pathway between endocrine glands and tissues
Explanation:
Our body is formed by a complex organization of various tissue, organs and organ-systems. It has specific mechanisms to regulate the functions of all its cell, tissue and organs. Besides neural system, the endocrine system also plays a crucial role in the regulation of body functions. This system consists of many pathways that originate from the hormone secreting glands called endocrine glands and reaches to the target cell or tissue or organ. These pathways are collectively named as the endocrine axis.
A human life is so valuable that no single price should be placed on it. The effect on this stance on bioethical issues however, is relative.
<h3>Relativity of Human value to Bioethical issues</h3>
- A person's stance on a bioethical issue can be based on which human life they value more, the person that will gain, or the one that will be affected.
- With abortion, one might argue that the value of the mother is higher than the baby's because not having to take care of a child will give her a better life.
- Designer babies might be more valuable because their lower rate of birth defects mean that they are tougher and less expensive to maintain.
- Stem cell research could save many lives so more value might be placed on these lives than the embryos affected.
In conclusion, a person can see another life as valuable yet have relative views on bioethical issues.
Find out more on stem cell research at brainly.com/question/5409171.
Answer:
option d is the correct option. all the cell in the embroyo would be capable of attaching to one another regardless of the cell type.
Explanation:
cadherins are molecules that allow cell adhesions. various number of cell bind together using this molecules for
proper functioning.
