Answer the following question given this paragraph: Gas exchange is needed to provide cells with the oxygen they need for cellular respiration. Cells cannot survive for long without oxygen. Gas exchange is also needed to carry away carbon dioxide waste. Some of the carbon dioxide in the blood dissolves to form carbonic acid, which keeps blood pH within a normal range. Q: What is needed to provide cells with the oxygen they need for cellular respiration? Choices: - vascular tissue - passive transport - photosynthesis - gas exchange A:
gas exchange
(Question)
Answer the following question given this paragraph: The parts of the ears involved in balance are the semicircular canals . Above, the semicircular canals are colored purple ( Figure above ). The canals contain liquid and are like the bottle of water pictured below ( Figure below ). When the bottle tips, the water surface moves up and down the sides of the bottle. When the body tips, the liquid in the semicircular canals moves up and down the sides of the canals. Tiny hair cells line the semicircular canals. Movement of the liquid inside the canals causes the hair cells to send nerve impulses. The nerve impulses travel to the cerebellum in the brain along the vestibular nerve. In response, the cerebellum sends commands to muscles to contract or relax so that the body stays balanced. Q: The parts of the ears involved in balance are called what? Choices: - lobe canal - symmetrical canals - rectangular canals - semicircular canals A:
(Answer)
semicircular canals
Ques: Answer the following question given this paragraph: Wave amplitude and wavelength are two important measures of wave size. Q: Wave amplitude and wavelength are two important measures of what? Choices: - wave sound - wave speed - wave harmfulness - wave size A:
Ans: wave size
(Q).
Answer the following question given this paragraph: Chemotrophic organisms break down either organic or inorganic molecules to supply energy for the cell. Some chemotrophic organisms can also use their organic energy-supplying molecules as a carbon supply, which would make them chemoheterotrophs. Q: Which organisms break down either organic or inorganic molecules to supply energy for the cell? Choices: - photoreactive organisms - asexual organisms - spicule organisms - chemotrophic organisms A:
(A).
chemotrophic organisms
Ques:Answer the following question given this paragraph: Honeybees are one of the most well-known insects on the planet. Bees are naturalized on every continent except Antarctica. Honeybees have a highly developed social structure and depend on their community, or colony, for survival, with a colony containing up to 20,000 bees. When bees search plants for nectar, pollen sticks to the fuzzy hairs that cover their hind legs. At the next flower, some of the pollen rubs off and fertilizes that flower. In this way, bees help improve fruit production. Bees pollinate an estimated 130 different varieties of fruit, flowers, nuts and vegetables in the United States alone. Farmers obviously depend on bees to pollinate crops, such as fruit and nuts, but in recent years thousands of bee colonies have disappeared. This could be a devastating issue for farmers. Can anything be done? Meet two Northern California researchers looking for ways to make sure we always have bees to pollinate crops at http://www. kqed. org/quest/television/better-bees-super-bee-and-wild-bee . Q: Bees are naturalized on every continent except which? Choices: - Australia - North America - Africa - antarctica A:

Ans:antarctica
Ques:Answer the following question given this paragraph: Sperm are male gametes that form in the testes and mature in the epididymis. Q: What is defined as male gametes that form in the testes and mature in the epididymis? Choices: - plasma - mucus - stereocilia - sperm A:

Ans:
sperm