Answer the following question given this paragraph: An ecosystem consists of all the living things in a given area, together with the nonliving environment. The nonliving environment includes water, sunlight, and other physical factors. Q: All of the living things in an area and the nonliving environment together make up what? Choices: - biosphere - biome - taiga - ecosystem A:
ecosystem
(Question)
Answer the following question given this paragraph: You must have a GPS receiver to use the system. You can buy many types of these in stores. The GPS receiver detects radio signals from nearby GPS satellites. There are precise clocks on each satellite and in the receiver. The receiver measures the time for radio signals from satellites to reach it. The receiver uses the time and the speed of radio signals to calculate the distance between the receiver and the satellite. The receiver does this with at least four different satellites to locate its position on the Earth's surface ( Figure above ). GPS receivers are now being built into many items, such as cell phones and cars. Q: What do we call the worldwide radio-navigation system formed from a constellation of 24 satellites and their ground stations? Choices: - cellular network - radio waves - compass - gps A:
(Answer)
gps
Ques: Answer the following question given this paragraph: Q: Which region is just posterior to the mouth? Choices: - the esophagus - the duodenum - the diaphragm - the pharynx A:
Ans: the pharynx
(Q).
Answer the following question given this paragraph: Ethers are good solvents for other organic compounds because of their low reactivity. They readily dissolve non-polar molecules. Diethyl ether is perhaps the best known ether. It is widely used as a solvent and has been used as an inhalable anesthetic. Q: Ethers readily dissolve what type of molecules? Choices: - proteins - lipids - polar - non-polar A:
(A).
non-polar
Ques:Answer the following question given this paragraph: Other types of flatworms are parasitic. That means they live inside another organism, called a host, in order to get the food and energy they need. For example, tapeworms have a head-like area with tiny hooks and suckers (known as the scolex ) that help the worm attach to the intestines of an animal host ( Figure below ). There are over 11,000 species of parasitic flatworms. Q: What does parasitic mean? Choices: - mutual benefit - welcome guest - symbiotic - lives in host A:

Ans:lives in host
Ques: Answer the following question given this paragraph: Q: What element is essential for amino acid and nucleic acid production? Choices: - oxygen - carbon - hydrogen - nitrogen A:
Ans:
nitrogen