Answer:
According to a recent National Institutes of Health (NIH) estimate, 90% of cells in the human body are bacterial, fungal or other non-humans. Many scientists concluded that bacteria enjoy a commensal relationship with their human hosts. Microbes not only live outside the human but live equivalently inside the human body that keeps him healthy.
Scientists called human skin a “virtual zoo of bacteria”. Some scientists compared the diversity in the human gut to a rain forest. The human gut alone contains on average 40,000 bacterial species.
According to the Human Microbiome Project in 2007, dozens of research teams have gathered data that redefine what it means to be human. Some commentators have gone so far as to refer to the human body as a superorganism whose “whose metabolism represents a combination of microbial and human attributes.
7.
XRY is a male with red eyes
XrXr is a female with white eyes
XRXR is a female with red eyes
XrYis a male with white eyes
8.
red eyed female heterozygous-XRXr
red eyed male-XrY
9.
2 white eyed male
0 white eyed female
0 red eyed male
2 red eyed female
10.
XRXR X XrY
first row XRXr XRY
second row XRXr XRY
0 white eyed male
0-white eyed female
2 red eyed male
2-red eyed female
The kind of farming associated with less soil erosion is No-till Farming. In No-Till Farming, there are countess benefits to the land. First and foremost, by leaving the soil mostly undisturbed and leaving high levels of crop residues behind, soil erosion is almost eliminated through no-till farming.
Answer:
Meiosis is important because during sexual reproduction, it ensures that all produced organisms have the correct number of chromosomes. It is also responsible for producing genetic variations during the process of recombination, and it repairs some genetic defects.
The disadvantage from not having the trait normally arises only after the reproductive stage of the individual's lifecycle is mostly over. This is a special case of "no strong pressure", because evolution selects genes, not the organism. In other words the beneficial mutation does not alter the reproductive fitness.
Explanation:
Meiosis is important because during sexual reproduction, it ensures that all produced organisms have the correct number of chromosomes. It is also responsible for producing genetic variations during the process of recombination, and it repairs some genetic defects.
