A microbe or microorganism refers to a microscopic species that may prevail in its single-celled kind or in a colony of cells. The microorganisms comprise all the unicellular species and so are tremendously diverse. They survive in almost all the habitat from the equator to the poles, geysers, deserts, deep sea, and the rocks.
Microbes play an essential role in human culture and health. Some of the microbes act as pathogens accountable for various infectious diseases. In the given question, the following are the responses that pertain to the relative burden of human infectious ailments in the world at present:
1. Nearly 200 microbes can result in human disease at present time.
2. Various diseases that used to be noninfectious possibly do not include the microbial infection on the basis of the present studies.
3. There is an enhancement in the number of microbes, which are resistant to the drugs at present.
Answer:
B. It was passed to the individual by a gamete from the father.
Explanation:
<u>DNA is transferred</u> to the next generation <u>via gametes</u>, which are produced during <u>meiosis</u>. During meiosis, <u>half of the genetic material</u> is <u>transferred</u> from parent cell to their gametes. Therefore, among the given options, only <u>B is correct</u>.
Option A is not correct because it talks about <u>somatic cells;</u> whereas, in somatic cells, <u>genetic material is not transferred half</u> rather duplicate first and then a complete duplicated set of genetic material is transferred.
Option C is also not correct because only <u>one gamete (sperm)</u> fertilizes the egg. Hence, not half of his cells descend from father gamete. Similarly, option D is also incorrect because it is not possible to descend half of the nuclei from the father to the offspring.
Answer:
Genetic variation among plant populations often occurs along different climatic gradients, such as temperature and precipitation gradients.
Environmental factors are often responsible for the patterns of genetic structure observed at small spatial scales (Sacks, Brown, & Ernest, 2004).
<span>All cells use oxygen to convert raw food products into energy they can use for health. In the process they make a bi-product which is carbon dioxide and waste material. If there was no cellular respiration the cell would die, because they would be lacking the oxygen needed for food conversion, and they would have no means of getting rid of their waste products.</span>
