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Alveoli are made of two main types of cells. The alveoli walls are made of a single layer of squamous alveolar cells (aka Type I cells), which are flat and thin, further ...

Within any population, there is naturally variation between organisms because they all have differences in their genes. The organisms that are best suited to the environment that they live within are most...

Active transport and diffusion

The egg cell must first be enucleated through the process of removing the nucleus from the surrogate mother’s egg. An adult cell nucleus from the desired mother is then inserted into the enucleated egg. T...

Glucose is filtered out of the blood in the glomerulus of the kidneys. All of the glucose is then is actively transported back into the capillaries in the area of the nephron called the proximal convolute...