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The study of onion root tips is widely known for the clear appearance of the stages of mitosis since the chromosomes are large and are clearly visible. They are easily stained with the stainer and are visible clearly under the electron microscope. The phase of mitosis are
Interphase
Prophase
Metaphase
Anaphase
Telophase and
Cytokinesis
Each of these phases show the different stages in which the division of one cell into two daughter cells takes place. The cytokinesis is the final phase in the mitosis cell division. This is the part of cell division process during which the cytoplasm of the cell divides into two equal parts and forms into two daughter cells.
During the cytokinesis process, the spindle apparatus partitions and transports the duplicated chromatids and moves into the cytoplasm of the dividing daughter cells. In this process a dividing structure called the cell plate is formed to distinguish the daughter cells. This cell plate later grows into a double layered cell wall which then splits the parent cell into two separate cells.
Hence the option D is the right answer
Answer:
Avoid the consumption of gases dangerous to the ozone layer, due to their content or manufacturing process. Some of the most dangerous gases are chlorofluorocarbons, halogenated hydrocarbon, methyl bromide, and nitrous oxide.
Minimize the use of cars. The best transport options are urban, bicycle, or walking. If you use a car, try to carpool to decrease the use of cars. This prevents pollution.
Do not use cleaning products that are harmful to the environment. Many cleaning products contain substances that are corrosive. Replace these dangerous substances with non-toxic products such as vinegar or bicarbonate.
Buy local products. Not only do you get fresh products but you avoid consuming food that has traveled long distances. The more food is transported, the more nitrous oxide is produced due to the cars or trucks used to transport it.
Maintain air conditioners, as their malfunctions cause chemicals to escape into the atmosphere.
Explanation:
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I believe the answer is D) Eukarya
Answer:
S waves are more dangerous than P waves because they have greater amplitude and produce vertical and horizontal motion of the ground surface. The slowest waves, surface waves, arrive last. They travel only along the surface of the Earth. There are two types of surface waves: Love and Rayleigh waves.
Explanation:
