D. Electrons because isotopes deal with electrons.
D.A decreased mental ability and uncontrollable movements
The pig embryo or fetus are both developmental stages in a pig's life cycle from conception and leading up to birth. The embryo and the fetus should be found in the uterus lining of the female pig, as this is where conception would occur and where the fetus will develop until it is ready to be born.
Answer: B. Tropical rain forest
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Explanation: The climate and biodiversity of one of Earth's most diverse and iconic biomes. the tropical rain forest. The tropical rain forest biome has four main characteristics: very high annual rainfall, high average temperatures, nutrient-poor soil, and high levels of biodiversity
Adult stem cells are rare. Their primary functions are to maintain the steady state functioning of a cell—called homeostasis—and, with limitations, to replace cells that die because of injury or disease
