<span>Crossing over or Chromosomal crossover is the process that
occurs in cells between the stages of phrophase I and metaphase I in meiosis. It is important
because it is responsible in the exchange of genetic material between
homologous chromosomes during sexual reproduction. This process ensures the
normal segregation of chromosomes during meiosis, and genetic variation.
Homologous chromosomes pair up with each other and exchanges segments of their
genetic material to form new chromosomes. Thomas Hunt Morgan described crossing
over in his theory of genetics. </span>
Scientific inquiry is to think , ponder, and have an interest in investigating something that exist or you think may exist or should exist. Anyone can use it ( kind of like the scientific method) but people who commonly use it seriously is police, scientists, and other career fields who find it necessary. Scientific inquiry involves a person, research tools, space, writing pad, and one, etc.
Answer:
<em>It is the outermost covering of a cell that separates the contents of the cell from its external environment. </em>
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<em>It only allows the entry and exit of some materials. It also prevents the movement of some. Therefore, it is also called a selectively permeable membrane.</em>
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<em>Some substances like carbon dioxide and oxygen can move across the cell membrane due to the process known as diffusion.</em>
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<em>Water also obeys the laws of diffusion. The movement of water molecules through a selectively permeable membrane is called osmosis.</em>
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<em>Pls mark as brainliest.</em>
