They did not have big differences between social classes and had extensive trade with nearby people<span>
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The statement "matter can be neither created nor destroyed by chemical means, but it can be changed from one form to another" is the chemical law of A. conservation of matter.
The other options are talking about energy, not matter.
According to a source, the answer is <u>A. M phase–Cell growth before DNA replication.</u><span>
Mitosis is the cell division that happens in all cells in the human body except sperm and egg cells. They produce diploid cells. Meiosis on the other hand is responsible for the cell division of the gametes, spermatogenesis (sperm cells) and oogenesis (egg cells), such haploid cells. Take for instance your integumentary system, layer of the skin in which your stratum basale always produces new epithelial cells (via mitosis) to take over until the outer layer, called stratum corneum (a continous replaced dead cells in this layer). </span>
The correct answer would be option D. The statement that best describes what plasma is in chemistry is, an electrically charged gas with very high kinetic energy. A plasma is defined as a hot ionized gas, which exists at super high temperatures.
Typically, forests exists in order to balance the ecosystem and also serves as the habitat of a variety of organisms. In this case, one of the significant characteristics of old growth forests is that, some organisms can only survive in the complex ecosystems of old growth forests. Answer for this would be the second option.