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torisob [31]
3 years ago
10

A scientist is investigating the cause of an unusual color in the lake water of a specific location. Four residents of the locat

ion responded to questions asked by the scientist. The chart below shows their responses. Questions Resident 1's answer Resident 2's answer Resident 3's answer Resident 4's answer Do you work at the coal mine near the lake? Yes No No Yes Do you use the lake water for daily chores? Yes Yes No Yes Is your family income affected by the presence of the coal mine near the lake? No Yes No Yes Which resident's information would the scientist most likely record to get valid results? Resident 1 Resident 2 Resident 3 Resident 4
Biology
2 answers:
Olin [163]3 years ago
6 0
The answer depends on someone who would most impartial, meaning not having an opinion that could change because of money (question 3), would need to have some knowledge of the lake (question 2) and would not alter results to avoid implicating the coal mine (question 1). The best choice is 1 because this person uses the water, but would not be affected economically by discussing the lake and the coal mine. Number 3 is the second best choice because they have answered no to all three questions. The reason Number 3 is not the best choice is because they do not regularly use the water, unlike Number 1.
Mazyrski [523]3 years ago
6 0

The correct answer is resident 2. I hope this helps!!

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Lana71 [14]

Answer:

if your brain is distracted, then you'll have a slower reaction time. if not, then you have a faster reaction time.

Other things can depend. If the object is to fast or to slow, that could also delay reaction times.

Explanation:

8 0
3 years ago
Dr. Hodges notes that David's exhaled carbon dioxide levels are elevated. List all the metabolic pathways that function to synth
Mrrafil [7]

Answer:

Explanation:

The production of ATPs for skeletal muscle contraction  depends on the conditions that the muscles are exposed to.

In presence of abundant oxygen, to the cells  Aerobic respiration-cellular respiration is the most ideal. 32 ATPs and 4 C02 are produced as by-products during the process as by products majorly two C02 from each  of the 2 acetyl Co A that enters the  kerb's cycle.

Likewise direct phosphoryaltion of ADP to ATP gives 32.0 kj/mol of heat liberated but no C02 was produced. This takes place during chemiosmosis. with 28ATPs produced.

In absence of oxygen, anaerobic respiration of skeletal muscles produced ATPs  from  glycolysis, heat and  2C<u>02 as products, but not as by-product</u>.Through alcoholic fermentation pathway.

Therefore ,the correct answer is Aerobic respiration, because it gives out C02 which is a by-product, released out of the body as waste from the lungs,and not use up  in  the body.

3 0
3 years ago
If you stir salt into boiling water, you produce a
jeka57 [31]
The choices can be found elsewhere and as follows:

<span>a) mixture called a suspension
b) mixture called a solution
c) solution and suspension
d) mixture only.
</span>
I believe the answer is option B. If you stir salt into boiling water, you produce a mixture called a solution. Hope this answers the question. Have a nice day.
6 0
3 years ago
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-Dominant- [34]

Answer:

i believe the answer would be 4 mph

Explanation:

the formula for speed is distance/time so 100/25 = 4. therefore your answer would be 4 mph. hope this helps:)

4 0
3 years ago
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