Answer:
Purpose- "the reason why something is done or used"
Research- An open access, peer reviewed Journal. Information about a topic that is gained by investigating prevous information gathered by someone else. systematic investigation. A systematic way of gathering data and harnessing curiosity.
Avoiding Bias- Avoiding Bias means to write info with curiosity and with research, not using personal opinion or preferance to write info.
Hypothesis- May be described as an educated guess based on research to describe and/or to explain the effect of a certain cause. Usually written in If....Then.... (A specific testable Prediction describing what you expect to happen in a certain circumstance)
Experiment-An emperical Procedure using scientific method to test and explain a certain circumstance.
Also, A trial or test, carried out under controlled conditions, to discover something unkown, to verify a hypothesis.
Independent Variable- The Variable that is changed during an experiment.
Dependent Variable- The Variable that you measure in response that is affected by the changes made.
Control- The Control variable is the Variable that remains Constant and does not change.
Analysis- The careful study of the data obtained from the experiment.
Conclusion-Short paragraph that discusses the overall results from the data obtained by the experiment and explains whether the hypothesis was right or wrong.
The right answer is The pressure in veins is lower than in arteries, causing less seepage of blood.
The arteries are the vessels located at the exit of the heart towards the organs. When the heart contracts like a pump to expel the blood to the arteries, the pressure is very strong. This is called systolic pressure. To cope with this pressure, the arteries have a thick and elastic wall, to be able to stretch without breaking. The arteries have an average diameter of 2.5 centimeters, against less than 2 mm for arterioles.
Unlike the arteries, the veins are subjected to a weak pressure, since the blood starts from the organs and not from the heart. The walls of the veins are therefore thin and fairly rigid because they have little resistance to provide against the pressure. The diameter of the veins and venules is rather small (smaller than arteries) and hardly varies. Veins and venules contain about 75% of the blood. During a cut, the blood of the veins gradually trickles.
So from these explanations, we can conclude that the propositions B; C and D are false, it is rather their opposite that is right.
Answer:
Cancer is unchecked cell growth. Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death. As a mass of cancerous cells grows, it can develop into a tumor.
Explanation:
Idk you gave no options for anybody to chose so i am unable to help
Answer:
Adam Smith: The Father of Economics
laissez-faire," or free-market,
invisible hand:The concept of the "invisible hand" was explained by Adam Smith in his 1776 classic foundational work, "An Inquiry into the Nature and Causes of the Wealth of Nations." It referred to the indirect or unintended benefits for society that result from the operations of a free market economy
consumer sovereignty:the situation in an economy where the desires and needs of consumers control the output of producers.
incentive:a thing that motivates or encourages one to do something
profit:a financial gain, especially the difference between the amount earned and the amount spent in buying, operating, or producing something.
specialization:the process of concentrating on and becoming expert in a particular subject or skill.