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Leto [7]
3 years ago
7

Why is it so important for measurements in an experiment to be accurate AND precise?

Biology
2 answers:
sveta [45]3 years ago
7 0

Answer and explanation;

-Accuracy is the closeness of measured value to correct value, while precision is the closeness of measured value to other measured values .

- It so important for measurements in an experiment to be accurate and precise because you need to get accurate and precisise results.

-If your measuring instrument always gives values that are closely grouped - precise - they will be of little value if the calibration of the equipment is such that the measured values are not correct - accurate. Similarly, if the equipment is calibrated correctly but your measurements vary wildly you will not know which measurement, if any, is correct.

Mashcka [7]3 years ago
6 0
The reason they have to be so accurate and precise is because, let's say you were doing a lab or something that was involving chemicals. If you had to put a certain amount of chemicals in your experiment, but when you were doing to the math, you messed up and didn't go back and even bother to fix it, that is a really BIG issue. Because something will probably happen to your chemicals because you might have added to much of something into it. So that's why you always have to be so precise and accurate!
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Which phrase describes one type of freshwater wetland?
mash [69]

Answer:

C. Large, deep body of water that contains fresh water

Explanation:

Keywords in question: "Freshwater wetland"

Answer A does not have those keywords in the answer. It does not talk about water, it talks about acidic areas!

Answer B does talk about water, but it's not specifically saying anything about freshwater. It talks more about the landscape of the area feeding water into rivers.

Answer C says fresh water at the end of the answer. It's telling you that the body of water contains fresh water. So, this phrase does describe the qualities of fresh water wetland.

Hope this helps you! :3

6 0
3 years ago
Read 2 more answers
Sort the following events into two categories:________.
Amanda [17]

Answers:

a) carcinogenic

b) anti-carcinogenic

c) carcinogenic

d) carcinogenic

e) carcinogenic

f) anti-carcinogenic

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h) anti-carcinogenic

Explanation:

Cyclins are proteins that regulate the progression through the cell cycle, i.e., the transition of G1 to S phase. It is well known that high cyclin expression may lead to cell proliferation states, which is closely associated with cancer progression. Moreover, the blockage of cyclins may have an anti-carcinogenic effect by inhibiting the progression through the cell cycle. MAP kinases are serine/threonine kinases that regulate the progression through the cell cycle by phosphorylating a variety of substrates during cell proliferation. In consequence, phosphatases that inactivate MAPK kinases (i.e., by dephosphorylation) may have an anticarcinogenic effect. The p53 is a tumor suppressor protein involved in diverse cellular processes including DNA repair, cycle arrest and programmed cell death. This protein (p53) is activated by phosphorylation at target residues and phosphatases inactivate it, thereby the blockage of its degradation may have an anticarcinogenic effect. Oncogene activation (i.e., the expression of oncogenes), may alter diverse cellular processes including DNA replication, and thereby may lead to cancer development. The G-protein α subunit is a GTPase that hydrolyses GTP and thus has a major role in controlling the kinetics of the G-protein signaling cascade. Platelet-derived growth factor receptors (PDGFR) are kinase receptors that play roles in regulating cellular differentiation, cell proliferation and cell growth. PDGFR receptors are present on the surface of normal cells, however, it has been shown that mutations of the PDGFR genes that lead to their high expression lead to uncontrolled cell growth and consequently cause cancer (i.e., by increasing PDGF signaling).

5 0
2 years ago
hawaii has formed on the pacific plate. hawaii is also over a hot spot thta allows magma to reach the surface of the earth, via
lana66690 [7]

Answer:

The northwest moving Pacific Plate has moved across the 'hot spot' that created the Hawaiian Islands for millions of years. This movement has left the northwest trending island chain

Explanation:

If the Pacific Plate keeps moving across the hot spot I believe Hawaii will keep becoming a bigger island because the Pacific plates movement caused Hawaii to form.

8 0
3 years ago
What is The Technical Term for a lake created by a dam
insens350 [35]

Answer:

<em>RESERVOIR</em><em> </em><em>IS</em><em> </em><em>TECHNICAL</em><em> </em><em>NAME</em><em>.</em>

6 0
2 years ago
Body parts of unrelated organisms that serve the same function are examples of
anyanavicka [17]
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7 0
3 years ago
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