Answer:
an optical instrument used for viewing very small objects, such as mineral samples or animal or plant cells, typically magnified several hundred times.A microscope is a laboratory instrument used to examine objects that are too small to be seen by the naked eye. Microscopy is the science of investigating small objects and structures using a microscope. Microscopic means being invisible to the eye unless aided by a microscope.
<u>Answer:</u>
To help relieve heartburn, a person should take medicine that is 'Over-the-counter (OTC) antacids and acid blockers'.
<u>EXPLANATION:</u>
- Heartburn is a very common symptom of a condition called Gastroesophageal reflux disease.
- This affects the lower part of the esophageal sphincter and also the muscle ring-like connection between the 'esophagus and stomach' which tends to infuse a backward flow of the stomach secretions.
- Along with some dietary and life style changes, the intake of antacids and acid blockers can help in the relieve of the symptoms of occasional heartburn.
The correct answer is answer choice A, 'In predation the predator usually kills its prey, whereas in parasitism the parasite does not usually kill its host'. While parasites can occasionally kill their hosts, it is more beneficial for the parasite to keep its host alive so that it can continue surviving off of the nutrients it gathers. Answer choice B is incorrect because the prey in predator-prey relationships and the host in parasitism do not benefit. Answer choice C is incorrect because the host does not benefit in parasitism, and is often harmed by the parasite. Answer choice D is incorrect because a predator usually kills its prey, while a parasite usually does not kill its host.
Hope this helps!
Sodium, calcium, potassium, chlorine, phosphate, and magnesium
