animals Interact with each other
Why do different species interact to each other?
Each individual has less access to the resource and so is harmed by the competition. Competition can occur both within and between species. We have learned that members of the same species must compete with each other because they require the same resources. they occupy the same niche.
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Nondisjunction is the the failure of homologous chromosomes of chromatids to segregate during meiosis or mitosis. Nondisjunction can result in cancer. Nondisjunction during meiosis results in one daughter cell having both a pair of parental chromosomes with the other having none. It causes mutation in the number of chromosomes, either extra chromosomes or missing chromosomes. Nondisjunction during meiosis can cause chromosomal disorders such as trisomy 21 (down Syndrome), Turner's Syndrome, and Klinefelter's Syndrome.
Gas exchange in humans is the delivery of oxygen lungs to the bloodstream, and the elimination of carbon dioxide from the bloodstream to the lungs.
Answer:
siRNA.
Explanation:
The RNA interference may be defined as the evolutionary conserved mechanism that helps in the gene regulation by the silencing of the small RNA molecules. Two main types are siRNA and miRNA.
The siRNA (small interference RNA) is involved in the protection of the cell by destroying the exogenous ds DNA of the cell. The DICER enzyme plays an important role in the processing of the small interference RNA and the guide strand of RNA is involved in the gene silencing.
Thus, the answer is option (a).
I believe the answer is 23