<span>1. Pose significant questions that can be investigated empirically.
2. Link research to relevant theory.
3. Use methods that permit direct investigation of the question.
4. The methods used to obtain data and test hypotheses should be benevolent and not malevolent.</span>
        
             
        
        
        
Answer:
The missing options are:
- steroid hormones
- carbs
- essential fatty acids
- PHO
The correct answer is essential fatty acids.
Explanation:
Essential fatty acids are the fats that our body can not produce by itself, but that are essential for the function of the body, so we have to consume foods that have these fats, such as fish, oysters, nuts, chia seeds, soybean oil, etc. The deficiency of these fats causes skin problems, alopecia, anxiety, depression, among other things.
 
        
             
        
        
        
Explanation:
Monocots contain a single cotyledon in their seed and dicots contain two cotyledons. The nutrients in the endosperm of dicots is absorbed by the two cotyledons. Therefore, a tiny endosperm is found inside the dicot seed. However, the main difference between cotyledon and endosperm is in their function during seedling.
 
        
             
        
        
        
D.  mRNA is synthesized from a strand of DNA. 
Transcription, hence the root script, means to write. This is the creation of the mRNA "messenger" information.
        
                    
             
        
        
        
Answer:
Mutations happen in our cells all the time. It's actually how all humans grow and change. The vast majority of mutations are harmless. Thus, they aren't avoidable.