D can be eliminated because the temperatures where changed in 3 ways, not two.
A is true, but doesn't apply to the actual experiment "design"
B we don't know for sure, it just looks like a cup/glass.
Best answer for you: C
C is true- it was tested with a single independent variable (one that does not change) on multiple trials (the different temperatures)
        
             
        
        
        
The most obvious way we can establish and maintain a healthy coastal ecosystem is by recycling all recyclable materials and trying to live with as little waste as possible. Also, using clean transportation, such as biking and such, would help slow down air pollution; giving sealife clean air to breathe.
 
        
             
        
        
        
Answer:
B
Explanation:
Any drug sold in the supermarkets, convenient stores etc  without prescriptions are called OTC-medication or over the counter drugs.
They are the group of drugs commonly abused  by young adults. Recommendation by  National Institute  on Drug Abuse is that , any  use of drug not related to medical purpose, but for mind-altering effects or arousal is regarded as an abuse. No doubt  these drugs are obtained over the counter because they are very easy to get, very cheap and legalized  by law to buy, thus easily accessible.
They drugs are high in contents which produces psychoactive effects when imbibed in over dose, and some may have damaging effects on the kidney and liver.
Other effects on the body physiology includes headaches, vomiting, nausea, seizures, tremors. etc.
 
        
                    
             
        
        
        
Answer:
anaphase I homologous pairs separate
 
        
             
        
        
        
The abdominal cavity is the answer you are looking for.