How does accuracy differ from precision in a scientific measurement ?

1 answer:

7 0

Accuracy would be hitting the target and precision is independent from accuracy because precision is determined by how close 2 or more points are (you can be very precise, but still be inaccurate.)

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Explain unsaturated, saturated, and trans fats.

Nostrana [21]

Answer:

Saturated are full of hydrogen atoms, they´re solid at rooms temp, and they are produced by animals.

Unsaturated are liquid, have double bonds and they are produced by plants.

Trans fats are artificial, they are chemically changed, liquids turned into solids

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3 years ago

All evolutionary changes that allow a species to change in response to the environment, are originally a result of

Norma-Jean [14]

All evolutionary changes that allow a species to change in response to the environment, are originally a result of beneficial DNA mutations.

Beneficial genetic (DNA) mutations are result in individuals with special characteristics that allow them to survive better in the environment so they pass their genes to the next generation.

Here's a fictional example I made just for you!: Lets say you have an alien species called Hibas. They are jelly blobs that float around, don't move, and open their mouths to capture neon shrimps that happen to swim into their mouths. But one day a certain Hiba developed some muscles through a genetic mutation. It was able to "wiggle" through the water and steer itself instead of floating around. This allowed it to eat more neon shrimp than the other Hibas, so it grew faster and was able to reproduce faster. It's kids also had muscles and had an advantage so they reproduced faster then the other Hibas. Eventually the whole Hiba species started to have muscles because the ones that didn't weren't able to compete and did not survive as well.
The reason that most of the Hibas developed muscles was because one of them had a mutation that allowed it to have muscles. This was a BENEFICIAL mutation that allowed it to SURVIVE BETTER.

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3 years ago

How do the four female hormones control the menstrual cycle

pishuonlain [190]

Answer: The menstrual cycle is regulated by hormones. Luteinizing hormone and follicle-stimulating hormone, which are produced by the pituitary gland, promote ovulation and stimulate the ovaries to produce estrogen and progesterone.There are four major hormones (chemicals that stimulate or regulate the activity of cells or organs) involved in the menstrual cycle: follicle-stimulating hormone, luteinizing hormone, estrogen, and progesterone. hope this helps have a nice night❤️❤️❤️

Explanation:

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3 years ago

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List 3 factors that can speed up the rate of chemical reactions

zysi [14]

Answer:

Temperature
Greater Surface Area
Catalysts

Explanation:

Temperature

An increase in temperature typically increases the rate of reaction. An increase in temperature will raise the average kinetic energy of the reactant molecules. Therefore, a greater proportion of molecules will have the minimum energy necessary for an effective collision (Figure. 17.5 “Temperature and Reaction Rate”).

Greater Surface Area

The rate of a chemical reaction can be raised by increasing the surface area of a solid reactant. ... more particles are exposed to the other reactant. there are more collisions. the rate of reaction increases.

Catalysts

A catalyst is a substance that can be added to a reaction to increase the reaction rate without getting consumed in the process. Catalysts typically speed up a reaction by reducing the activation energy or changing the reaction mechanism.

Hope this help!!!

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3 years ago

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Pertumbuhan dialami Oleh...

netineya [11]

D. Batu, tumbuhan,dan air

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