Normal cells<span> listen to signals from neighboring </span>cells<span> and stop growing when they encroach on nearby tissues
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Answer:
90% of energy is lost as heat at each trophic level. Therefore, only 10% passes to the next level.
Explanation:
The carbon cycle illustrates how carbon, which is found in all living and once living things, is cycled and recycled from organisms to the soil and back to living things...matter is neither created or destroyed so the carbon we find in us, etc is the same carbon found in the earth since its "birth"
The parent cell will create daughter cells with the same number of chromosomes as it has -- through mitosis.
The parent cell will create cells that are haploid, half the number of chromosomes of the parent -- through meiosis.
Answer:
At a level in the spinal cord
Explanation:
The gate theory was elaborated in 1965 by P.D. Wall and r. Melzack, to explain the influence of tactile skin stimulation on pain relief. It essentially admits that there exists in the medullar posterior horns (located behind the central canal of the spinal cord) a gate-acting neural mechanism that can control the passage of nerve impulses transmitted from the peripheral fibers to the CNS through the medulla.
The gate regulates the influx of nociceptive impulses even before a perception of pain is created. The variation in the passage of action potentials (nociceptive) that the gate produces is determined by the activity of the thick (A-alpha and A-beta) and thin (A-delta and C) fibers, as well as cognitive influences.
