How can reproductive isolation lead to speciation<span>? If populations cannot mate successfully with one another, genetic differences may accumulate in the populations. Over time they become very different and give rise to new species.</span>
Without a centrosome, cells would not be able to move organelles around the cytoplasm. The centrosome is part of the nucleus that <span>interacts with the chromosomes to build the mitotic spindle. It is typical for the animal cells. This organelle is also responsible for cell division and the stages in the cell division process.</span>
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The correct answer is satatement c. Tye statement says: "Carbohydrates are long,winding molecules made up of amino acids and are important in the synthesis of fats and hormones."
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Short, fast sprint
Explanation:
During the short period of the fast sprint, the muscles are demanded to act really fast and are therefore exerted because there is little time for oxygen to diffuse into the tissue and satisfy the energy needs of the muscles. The energy demand is higher than the oxygen supply. Therefore cellular respiration of the cells of the tissue incline towards anaerobic respiration (glycolysis in the cytoplasm). This fast pace can't be sustained because glycolysis is an inefficient way of generating energy by cells. Pyruvate, the end product is converted into lactic acid. Accumulation of lactic acid causes muscle spasms.
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