No, halite is not more valuable than gold
Answer:
Explanation:
Staining is done for onion cells to visualize the cytoplasm of yellow and white onions because they are not pigmented. The staining of human cheek cells with methylene blue is necessary to stain the nucleus to get clear image of it under microscope because methylene blue binds to negative charge nucleic acids
While for leaf epidermal cells smears, staining is not necessary as they are visible under light microscope without staining and they also have pigmented materials inside them such as chlorophyll chloroplast. The cork cell is a non-living and have a cell wall whose structure is visible under light microscope.
Answer:
Option A, Some people consider embryos to possess rights equal to those of fully developed human beings.
Explanation:
When stem cells are derived from embryo, the embryo dies in lieu to end of its cell development and this happens because stem cells are the only cells that have potential to develop an embryo by producing more stem cells and differentiating them into specific organs.
In most of the study, embryonic stem cells are derived from embryos that are obtained from IVF technique as an spare embryo. But this act is considered unethical as embryos have life within them and hence they also have rights equal to a fully developed human being.
Hence, option A is correct.
Answer:
Depolarized graded potential.
Explanation:
A depolarizing graded potential is a local change in the membrane potential that makes a small increase in the potential. The membrane potential is less negative because the graded potential caused the entrance of Ca²⁺ or Na⁺ ions to the inside of the cell decreasing the negative voltage in the inside of the cell.
Add a metabolic poison to the water to block any active metabolism and see if the seed germinates the same as without the poison.
- The percent increase in mass decreases with rising temperature. As temperature rises, its value approaches that of the percent increase in mass.
- There are two types of requirements for microbial growth: physical and chemical. Osmotic pressure, pH, and temperature are examples of physical factors.
- Water, supplies of carbon and nitrogen, minerals, oxygen, and organic growth stimulants are all chemical necessities.
- hence by using poison to block the active metabolism of seed the chemical growth will be restricted. If the seed still swells this means that it is a physical process.
- If the seed swelling stops then the process is considered chemical.
learn more about seed here: brainly.com/question/1022692
#SPJ9
