The answer is C. inbreeding
İnbreeding results in homozygosity, which can increase the risk of the koalas being affected by the genetic disorder.
Answer:
Doubles the amount of DNA and reduces the chromosome number from 2N to N.
Explanation:
Meiosis is a cell division in which one cell divides into 2 cells in the first meiotic division and then these two cells divide into two more cells so overall 4 cells are produced from one cell. This division occurs in gamete cells.
First, the amount of DNA gets double by converting the single-stranded DNA into double-stranded DNA. Then the homologous chromosomes get separated into two different cells in the first meiotic division and till now the chromosome number is 2N.
After the second meiotic division, each sister chromatids of a chromosome gets separated into separate cells and the chromosome number in daughter cells becomes 1 N. So the major role of meiosis is to double the DNA mount and reduce the chromosome number by half in all daughter cells.
Answer:
they are located in the same period
Explanation:
they are in the same vertical row
Answer:
Pollution.
Explanation:
Pollution is the extinction factors that cause the least extinctions because it has less effect on the population of that organisms. Due to pollution, some organisms die and decrease occur in the population while the rest move to another safe place and some lives in that environment produce resistance against that pollution and are able to live in that pollution so pollution is the factor that cause the least extinction.
The Explanation based on the meaning of abiotic and understanding of the characteristics of life is that:
- Abiotic factors are nonliving.
- Living things are said to have cells.
- Abiotic factors are factors that cannot have cells.
<h3>What are the characteristics of life?</h3>
They are:
- They have cells
- They make use of energy
- They Reproduce
- They Respond to the environment
- They do grow and develop
Abiotic Factor are said to be the those environmental factor that is said to be dead (not living) and are those which has never lived.
Therefore, The Explanation based on the meaning of abiotic and understanding of the characteristics of life is that:
- Abiotic factors are nonliving.
- Living things are said to have cells.
- Abiotic factors are factors that cannot have cells.
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