Systems thinking focuses on the role of individual elements and their relationship with others in the system.
Down-cut
Explanation:
Lowering a streams base level will cause the stream to down-cut and erode to that level.
- The base level of a stream is the lowest level to which a stream can erode its channel.
- The base level of most streams is usually a function of their ability to down-cut their bed rock.
- Most streams have their base level equal to that of the sea level.
- When a stream downcuts to its base level, it becomes rejuvenated and gains more energy.
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1. NaOH dissociates in water.
2. NaOH is a base.
That's what I get from that. NaOH must dissociate in water to raise the concentration of anything, and it must be basic, otherwise it would raise the hydronium concentration or nothing at all.
Answer:
The mutated cell will have 25 chromosomes.
Explanation:
Meiosis is a cell division process in sexual reproduction which involves two successive divisions of a cell having a diploid (2n) number of chromosomes into four daughter cells having a haploid (1n) number of chromosomes.
Meiosis consists of two successive nuclear divisions, meiosis I and meiosis II. Each division consists of these stages: prophase, metaphase, anaphase, and telophase.
Anaphase consists of anaphase I and II. During anaphase II, the centromeres linking the two pairs of chromosomes which are called chromatids separate, and the sister chromatids move toward the opposite poles of the cell and are now called chromosomes.
Therefore in the chimpanzee having 48 chromosomes, after underoing meiosis, each daughter cell will have 24 chromosomes. If there is a case of non-separation of one chromosome, the cell will have 1n + 1 chromosomes i.e. 24 + 1 = 25 chromosomes.
