Answer:
A river basin or drainage basin is an area of land drained by a river and its tributaries. The edge of the drainage basin is known as the watershed. This can be compared to a sink or basin, which catches the water falling into it. The water travels towards the centre and leaves the sink through a plug hole.
Answer:
In metaphase 1, chromosomes from the mother and father line up randomly along the middle of the cell.
Explanation:
In diploid (2n) organisms, the homologous chromosomes are the two copies of each chromosome, where one of these homologs is the chromosome from the mother, while the second one is from the father. During metaphase I, the homologous pairs of chromosomes pair together at the middle of the cell. The law of independent assortment, also known as or Mendel's Second Law, states that homologous chromosomes line up in random orientations at the metaphase plate during this period (metaphase I).
Answer:
regional metamorphism is a metamorphism that is affecting rocks over an extensive area as a result of the large-scale action of heat and pressure.
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I think the answer is C. amphibians
Answer:
Molluscs with the exception of cephalopods have an open circulatory system I.e.the blood circulates with in vessels from the heart but it also fills open lacunas or cavities. In annelids the cieculatory system is closed, i.e. the blood circulates only inside blood vessels.