Autotrophs since they are self-feeders and make their own food instead of relying on others (the opposite is heterotrophs)
gas exchange is a primary example of simple diffusion,the exchange of *oxygen* and *carbon dioxide* fuels the cellular processes such as photosynthesis and cellular respiration
<span>As blood moves away from the heart toward the tissues, the relative size of blood vessels decreases, the blood pressure drops, and the velocity of blood flow slows.
The size of the arteries progressively decreases as they branch out from the major arteries of the body. Once the arteries are the size of the arterioles, the resistance to blood flow increases and velocity of blood flow slows then blood pressure drops.
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<span>well this is an interesting question and i would say it may depend on what type of cancer cells you are growing and what type of "normal" cells your growing. One possibility is that cell fusion events may occur between your cancer cells and normal cells, thus creating a few options 1 - making the normal cell cancerous, 2 - making the cancer cell that fused with the normal cell not cancerous anymore. 3 - either way the fused cell will have a different genotype and hence be a different cell.</span>
<span>Wax is a simple form of lipid
molecule. It consists of a long-chain of alcohol and a fatty acid. Many of the
natural occurring wax found in nature are used as ingredients for products
found in stores like ointments, hand cream, and cosmetics.
Plants have
naturally occurring wax on their leaves and stems; these serve as coatings to
prevent them from losing excess water. Other forms of wax found in nature are beeswax,
used by bees to make their cones for honey and eggs; sperm whales have
spermaceti wax found in their blubber; and carnuba wax, is an ingredient
commonly used for car waxes, commonly found in Brazilian palm trees. </span>
