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maxonik [38]
3 years ago
15

Name two methods scientists use to obtain empirical evidence

Biology
2 answers:
cupoosta [38]3 years ago
8 0
The two methods scientists use to obtain empirical or evidential data is through:
<span><span>  </span>
1. Experimentation. This will majorly utilized in the various fields of science, hence this uses the variables of determining the independent and dependent variables –causation and effect of one or two variables to one another and vice versa. This is widely done in laboratories but natural observations is also one condition. </span>   <span><span>

2.    </span><span>Descriptive. This is one method of gathering data by using tests, interview and assessment, also to correlate the study. Moreover, this is the methods which is widely used in social sciences. Note that questionnaires aren’t the only methods in gathering data as mentioned by the above respondent, many authors would argue and support this claim.   </span></span>



ratelena [41]3 years ago
3 0
1) Measurements during an experiment: for example measuring the weight of some substance or the size or temperature - mostly in natural sciences

2) Questionnaires in case of social studies. For example, if you want to examine the level of attachment in dog owners towards their dogs, you can have the owners fill in questionnaires for you.
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Disruptive selection or diversifying selection describes the changes in population genetics where extreme values for a trait are favored over intermediate values.

So according to this definition, the conclusion can be derived as :

The most common circumference(s) to be after 10 generations of diversifying selection will be greater than 2 cm and less than 2 cm.

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3 years ago
Solids will usually sink when placed in their own liquids. Which is an exception?
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WATER

Solids will usually sink when placed in their own liquids with the exception of water

Explanation:

Ice (the solid form of water) floats on water that is cooler than 4 degrees centigrade. This is unlike any other material and this phenomenon has been referred to as the ‘water anomaly’.

Most substances will sink in their own liquid because the solid form is denser than the amount of their own liquid that they displace when immersed. This is because the particles in the solid are closely packed together hence there are more particles per volume than in the liquid form.  

Water however, expands at temperatures below 4 degrees and hence ice is less dense than water at 4 degrees and below. The particles in ice are farther apart than particles of water at 4 degrees and below. There is, therefore, more particles per volume in the liquid form of water than in ice – making ice less dense.

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4 0
3 years ago
What is the likely motivation for a person giving up soup after an extended illness? Values Habit Social interactions Positive a
makkiz [27]

Answer:

The correct answer is: Positive Associations.

Explanation:

  • Due to prolonged illness the person has lost all desire to survive.
  • This is the reason why he stopped consuming food.
  • Under such a situation, it is necessary that the person should be exposed to people who can positively counsel the person and make the ill person realise the importance of life.
  • It is necessary to make the person realise what he would gain if he chooses to survive and what he would lose if he chooses to die.
  • It is necessary to remind the person of all the possible goals he could achieve in his life if he chooses to survive.
7 0
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Where are coral reefs most threatened by pollution, and what effects has pollution had so far?
NeTakaya

Answer:

In the great barrier reef

Explanation:

It has effected plants and sea creature populations because of their homes being destroyed

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How are mitochondria similar to chloroplasts? Both have many layers of membranes. Both contain molecules of chlorophyll. Both ar
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Answer:

Both have many layers of membranes

Explanation:

4 0
3 years ago
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