Answer the following question given this paragraph: A proton is one of three main particles that make up the atom. The other two particles are the neutron and electron. Protons are found in the nucleus of the atom. This is a tiny, dense region at the center of the atom. Protons have a positive electrical charge of one (+1) and a mass of 1 atomic mass unit (amu), which is about 1.67 10 -27 kilograms. Together with neutrons, they make up virtually all of the mass of an atom. For an excellent video on protons and other fundamental particles in atoms, go to this URL:. Q: Which atomic particle has a positive charge? Choices: - the electron - the nucleus - the neutron - the proton A:
the proton
(Question)
Answer the following question given this paragraph: Q: What kind of a relationship do plants and soil have? Choices: - one-way relationship - dimorphic relationship - contentious relationship - two-way relationship A:
(Answer)
two-way relationship
Ques: Answer the following question given this paragraph: Excretion is the process of removing wastes and excess water from the body. It is one of the major ways the body maintains homeostasis. Q: What term is used to describe the process of removing wastes and excess water from the body? Choices: - diffusion - digestion - aeration - excretion A:
Ans: excretion
(Q).
Answer the following question given this paragraph: The kidneys ( Figure below ) are important organs in maintaining homeostasis , the ability of the body to maintain a stable internal environment despite a changing environment. Kidneys perform a number of homeostatic functions. Q: What paired human organs play a vital role in maintaining homeostasis? Choices: - lungs - ears - eyes - kidneys A:
(A).
kidneys
Ques:Answer the following question given this paragraph: Research is being done into alternative crops for biofuels. A very promising alternative is algae. Algae appears to be a better biofuel than corn. Algae is much easier to convert to a usable fuel. Growing algae requires much less land and energy than crops. Algae can be grown in locations that are not used for other things. For example, they can be grown in desert areas where food crops are not often grown. Corn must be grown where food crops are grown. This can reduce the land and water available for growing food. Algae can be fed agricultural and other waste, so valuable resources are not used. Much research is being done to bring these alternative fuels to market. Q: What is algae easier to covert into that corn is currently used for? Choices: - oil - food - sugar - fuel A:

Ans:fuel
Ques: Answer the following question given this paragraph: Q: Amplification that occurs in which cells often requires signal transduction pathways involving second messengers? Choices: - axons - optic nerves - catayst cells - sensory receptor A:
Ans:
sensory receptor