Cool front is not a standard weather front. Cold front, warm front and occluded front are all standard weather front. When you say weather front, it is a boundary that separate 2 air masses.
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Answer: C. a balance and a beaker</h3>
Explanation:
A balance would be used to measure the weight, which in turn effectively measures the mass (more or less). Imagine that we have a brick that we know is 1 pound. If we have an object that needs 5 bricks on one side to balance it out, then we know the object is 5 pounds.
The beaker is used to measure the volume. It's basically a measuring cup that you would find in the kitchen.
To get the density, you divide the mass over volume.
For example, if you have a material that has a mass of 100 grams and it's volume is 20 cm^3, then its density is 100/20 = 5 grams per cm^3.
"The process of dissolving bone and returning its minerals to the bloodstream is known as resorption." It is the process by which osteoclasts break bone tissue and release the minerals, causing a transfer of calcium from bone tissue to the blood.
In the cycle of bone growth, resorption is the breakdown and assimilation of old bone. It remove hard bone tissue during the resorption (remodeling) process, and osteoblasts then lay down new bone cells.
Bone loss, or a reduction in bone mass and bone density, is caused by bone resorption. This may be brought on by health issues including hyperparathyroidism, hypovitaminosis D, or even aging-related decreases in hormone synthesis.
To learn more about resorption and minerals here,
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Answer:
Random mutations led to evolution of pesticide resistance genes in bed bugs.
Explanation:
Random mutations in genome of bed bug imparted them the pesticide resistance. Since the bed bugs having the mutation of pesticide resistance were able to survive under presence of pesticides, this variation was favored by natural selection. The bugs with pesticide resistance transmitted this trait to their progeny. In time, the bed bug population consisted of most of the bugs having the pesticide resistance.
Answer:
Hitched a ride or Humans brought it and planted it.
Explanation: