Cardiac muscles as they have striations and are branching cells.
Answer:
Mutations leading to the better attachement of virus to the host cell would allow the virus to spread the infection and leave more progeny. The reproductive fitness of mutant viruses would allow the mutation to spread.
Explanation:
1. The organisms with same resource requirement compete with each other. Viruses are not living things but once inside the host cell, they behave like living things. Rapid multiplication of virus overpopulate the host cells.
2. Genetic variations are added to the viral progeny by random errors during replication of the viral genome. These random variations may impart beneficial trait, harmful feature or remain neutral. If a random mutation in the SARS-CoV2 virus allows it to adhere better to the cells of the respiratory system, the virus would be better able to infect these cells to spread the infection. Once inside the host cells, the mutant virus would leave more progeny. On the other hand, the wild type virus that lack this mutation would have lesser chances of entering the host cells and may or may not replicate.
3. The progeny of the mutant virus would compete better with the non mutant ones due to the presence of same mutation.
4. Differential reproduction and more progeny of the mutant virus would spread the mutation among the virus.
Answer:
The human eye does not rotate, nor does it turn in search of sunlight to form a power source.
The human eye contracts its pupillary structure in order to collimate or select the rays of light that enter the eye, while the plant cannot make a selection or filtering of solar rays.
The human eye has three different types of cones and plants do not have the cone system.
Plants can absorb sunlight and rotate toward the beam up to 360 degrees while the human eye cannot.
Explanation:
The comparison between the human eye and this type of plants at the time of solar irradiation presents many differences, but the most important thing of all is that the human eye can regulate the entry of irradiation while the plants rotate towards where the ray of the sun but they cannot regulate how much sun they perceive by means of a filtering such as the contraction of the cornea
