Answer:
The lunar calendar became the basis of the calendars of the ancient Chinese, Babylonians, Greeks, and Jews
Greek astronomers also devised rules for intercalations to coordinate the lunar and solar years. It is likely that the Roman republican calendar was based on the lunar calendar of the Greeks
Answer:
a variety of genes are involved in the control of cell growth and division. the cell replicates itself in an organized, step by step fashion known as the cell cycle.
Explanation:
tight regulation of this process ensures a dividing cell's DNA is copied properly, any errors in the DNA are repaired and each daughter cell receives a full set of chromosomes.
A karyotype is a person's whole set of chromosomes. The term also refers to a laboratory-produced photograph of someone's chromosomes isolated from a character mobile and organized in numerical order. A karyotype can be used to search for abnormalities in chromosome quantity or structure
karyotypes can reason bodily sperm issues, many guys with Karyotype issues together with balanced translocations have normal searching sperm that convey DNA troubles that purpose infertility and miscarriages for them and their partner.
Karyotypes can reveal changes in chromosome range associated with aneuploid situations, inclusive of trisomy 21 (Down syndrome). careful evaluation of karyotypes also can display more diffused structural modifications, which include chromosomal deletions, duplications, translocations, or inversions.
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Answer:All energy sources have some impact on our environment. Fossil fuels—coal, oil, and natural gas—do substantially more harm than renewable energy sources by most measures, including air and water pollution, damage to public health, wildlife and habitat loss, water use, land use, and global warming emissions.
Explanation:It becomes clear that for more than 45 percent of respondents, solar energy was the most environmentally friendly energy source. The energy generated by the wind was also a considered to be pro-environment by almost 24 percent of the respondents.
The impacts of climate change include warming temperatures, changes in precipitation, increases in the frequency or intensity of some extreme weather events, and rising sea levels.
