The Institutional Review Board 1) Reviews only studies in animals 2) Reviews clinical studies (in humans) 3) Is constituted by the drug company to assure the safety of the investigational drug 4) Assures investigators do not have conflicts of interest A. "1,2 and 3 are correct"
B. 1 and 3 are correct
C. 2 and 4 are correct
D. ONLY 4 is correct
E. ALL are correct

C. 2 and 4 are correct

Explanation:

Institutional review board protects the rights of human research.

They are involved with reviewing of all research that involves the use of humans before it is conducted and protect the welfare of the human involve and the privacy.

The member of the board must be 5 and above and it include people from different fields that are knowledgeable and will provide findings on human research. A non scientist is also involve and someone from other field.

2 and 4 is correct

the electromagnetic energy from the sun arrives in the form of visible and invisible light.

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.