Answer:
True
Explanation:
The color of the baby's eyes is influenced by the genetic inheritance (of the genes transmitted by the mother and father) and the amount of melanin (brown or black pigment whose type and amount is encoded in the genes) found in the iris.
Eye color is controlled by at least three genes, although researchers still only understand the role of two of them. Determining eye color is an extremely complex process and there are several conditioning factors and genetic combinations that can influence the final color.
The more melanin, the darker the color of eyes, skin and hair. If parents have both brown eyes, it is natural for their children to have the same color. However, there may be a genetic influence from an ancestor and the child expressing a different color.
If the presence of melanin in the iris is reduced, the baby will have blue eyes, even if father and mother have brown eyes. If the presence of melanin is higher, the eye color will be green or hazel. When there is a large production of melanin, the eyes are brown, predominant color over green or blue and therefore more common. The least common color is green.
B. Because a physical reaction is a change that can be seen. This particular situation is happening over a period of time, it isn’t something that happens instantly. Also I it would have been a chemical reaction, it would have mentioned something about the state of an element or the temperature or something along those lines.
Answer:
The sun ejected rocky material, which later went on to form the planets.
In Meiosis, Anaphase 1 consists of the separation of homologous chromosomes. However, anaphase 2 consists of the seperate of sister chromatids.
Explanation:
Weathering can be defined as the physical disintegration and chemical decomposition of rocks and structures to form sediments and soils. Physical weathering is also known as mechanical weathering which involves the breakdown of materials physically.
In chemical weathering materials reacts decay via formation of chemical substances. It occurs by oxidation, solution, hydrolysis, carbonation, e.t.c
The minerals in a marble statue react with water to form acids and pores in the structure.
Chemical weathering
A piece of rock crumbles after being constantly thrashed by strong waves.
Mechanical weathering
Industrial runoff forms cracks in a rocky structure in its path.
Mechanical weathering
The rocks in a region are streaked orange after being exposed to repeated rains.
Chemical weathering
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