Answer the following question given this paragraph: Q: What are large vesicles derived from the endoplasmic reticulum and golgi apparatus? Choices: - chloroplasts - tubules - alleles - vacuoles A:
vacuoles
Answer the following question given this paragraph: Work is defined differently in physics than in everyday language. In physics, work means the use of force to move an object. The teens who are playing basketball in the picture above are using force to move their bodies and the basketball, so they are doing work. The teen who is studying isn't moving anything, so she isn't doing work. Not all force that is used to move an object does work. For work to be done, the force must be applied in the same direction that the object moves. If a force is applied in a different direction than the object moves, no work is done. The Figure below illustrates this point. Q: In physics, work means the use of what to move an object? Choices: - mass - energy - leverage - force A:
force
Q: Answer the following question given this paragraph: A: All chemical equations must be balanced. This means that there must be the same number of each type of atom on both sides of the arrow. That's because mass is always conserved in chemical reactions. Count the number of hydrogen and oxygen atoms on each side of the arrow. There are two hydrogen atoms in both reactants and products. There are two oxygen atoms in the reactants but only one in the product. Therefore, equation 1 is not balanced. Q: What is always conserved in chemical reactions? Choices: - energy - bonds - force - mass A:
A: mass
Question: Answer the following question given this paragraph: As a cell prepares to divide, its DNA first forms one or more structures called chromosomes. A chromosome consists of DNA and protein molecules coiled into a definite shape. Chromosomes are circular in prokaryotes and rodlike in eukaryotes. You can see an example of a human chromosome in Figure below . The rest of the time, DNA looks like a tangled mass of strings. In this form, it would be very difficult to copy and divide. Q: What structure is made from dna and protein molecules coiled together? Choices: - bacterium - enzymes - atoms - chromosome A:
Answer: chromosome
*Question*
Answer the following question given this paragraph: electrons, which have a negative electric charge. Q: What kind of charge do electrons have? Choices: - effective - unusual - positive - negative A:
**Answer**
negative
(Question)
Answer the following question given this paragraph: 9.5 Simple Machines Simple machines are devices that can be used to multiply or augment a force that we apply often at the expense of a distance through which we apply the force. The word for "machine" comes from the Greek word meaning "to help make things easier. " Levers, gears, pulleys, wedges, and screws are some examples of machines. Energy is still conserved for these devices because a machine cannot do more work than the energy put into it. However, machines can reduce the input force that is needed to perform the job. The ratio of output to input force magnitudes for any simple machine is called its mechanical advantage (MA). Q: What is the greek word meaning "to help make things easier"? Choices: - toy - battery - mode - machine A:
(Answer)
machine