So a change in an organism's DNA can cause changes in all aspects of its life.Mutations<span> are essential to </span>evolution<span>; they are the raw material of genetic variation. Without </span>mutation<span>, </span>evolution<span> could not occur.</span>
Answer:
Most plants appear green because they absorb all other colors of light and reflect back green into our eyes. Since chlorophyll molecules use the red (opposite of green) end of the visible light spectrum to complete photosynthesis, then red is most heavily absorbed.
Answer:
The preferable option will be - C.
C. Improves outcomes.
Explanation:
- Studies related to staffing and patient outcomes suggest that patient outcomes are improved with a low nurse-to-patient ratio and especially with a low registered nurse-to-patient ratio.
- If one nurse has to take care of more patients then the service quality will fall down.
- If one nurse will take care of one or two patients then the service will be better.
- The more the 1:1 ratio, the more the better service.
Answer:
Somatic cells are the ones obtained by mitosis. They constitute the body tissues and have a variety of different functions. They are <em>diploid</em>, which means they have two copies of each chromosome (2n), one obtained from the father and one from the mother.
Gametes are obtained by meiosis. A diploid cell divides to form four <em>haploid </em>gametes, they have a single copy of each chromosome (n), obtained from the parent cell.
Zygotes are obtained by the fusion of two gametes, one from the father and one from the mother, they are <em>diploid </em>again having two copies of each chromosome.
