<span>C. Cells, Tissues, Organs, Organ Systems
The answer is C. Cells are the fundamental unit of life. Without them, life would not possibly exist. Well that is according to the cell theory, which states that cells are the basic unit of life, cells came from pre-existing cells and cells make up living organisms.
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<span> Erosion is a natural process, though it is often increased by humans’ use of the land. Deforestation, overgrazing, construction, and road building often expose soil and sediments and lead to increased erosion. </span>
Planting seeds to shallow or too deep will prevent their growth as the seeds will get very little nutrients. If the seeds are planted to shallow the roots will not be able to absorb all the nutrients in the soil. Or when it rains due to the shallowness it will get too much water and die. If planted too deep part of the seeds will not receive water to grow and will die.
In meiosis I, homologous chromosomes separate, while in meiosis II, sister chromatids separate. Meiosis II produces 4 haploid daughter cells, whereas meiosis I produces 2 diploid daughter cells. Genetic recombination (crossing over) only occurs in meiosis I. D
Oxygen and glucose are need for cellular respiration
