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3 years ago

What are four ways a scientist can reduce bias in scientific investigation

1 answer:

7 0

1.If the scientist does a blind study, were he or she does not know which item they are testing 
2) Tool used. making sure whatever measurement the investigator is using should be valid and reliable. avoiding the possible results to become biased and unstable due to errors which should be avoided 
3) Sampling method. obtain the samples which are appropriate and that would cover the entire participants studied- not a half but the entirely of what you want to study. entirely means as much as the possible sample covers. 
4) Have some one else double check your findings. hope that helped

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Why do all microorganisms produce pyruvate via glycolysis?

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Answer:

B) All microorganisms do not produce glucose via glycolysis,

there are alternate pathways that produce glucose.

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3 years ago

Why is the dna molecule referred to as the blueprint of life

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All of the structure of the DNA molecule work together to grow, reproduce, develop, and survive.

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3 years ago

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What two new activities did neolithic people engage in

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The Neolithic marks the period when our specie developed farming and domesticated animals.

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3 years ago

Some people who have narcolepsy experience a sudden loss of muscle tone, a condition called ________. This can be very dangerous

DENIUS [597]

Answer:

Cataplexy is condition in which sudden loss of muscle tone occur.

Explanation:

Cataplexy is sudden and uncontrollable muscles weakness or paralysis that comes on during the day and is often triggered by a strong emotion such as excitement or laughter. Cataplexy occur during working hours. A more severe episode may involve total body collapse. In cataplexy the voluntary muscle tone occur. This condition is mostly associated with narcolepsy which is a sleep disorder.. Symptoms of cataplexy have;

1) Dropping eyelid.

2) Jaw dropping.

3) Neck muscle weakness.

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3 years ago

A student is investigating temperature changes at a nature preserve on a hot, clear day. Each hour, the student takes two temper

Nataly [62]

A. Air over the lake will reach its highest temperature later in the day and will stay warm longer than air over the ground.

Explanation:

The most likely observation the student will record is that the air over the lake will reach its highest temperature later in the day and will stay warm longer than air over the ground.

This phenomenon between the differences in land and water temperature causes land sea breeze to occur.

Water has a very high specific heat capacity.
This implies it takes more heat to cause a monumental increase in its temperature.
It is expected that the student will observe that the air over the lake body will reach its highest temperature later in the day. It would have gotten heated with time.

A body such as water in a lake with a high specific heat capacity stays warm for a longer period of time compared to other substances.

Metals do not have high specific heat capacity and would not stay warm for long. They quickly lose heat.

learn more:

Specific heat capacity brainly.com/question/7210400

#learnwithBrainly

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3 years ago