How can bias influence an experiment ?

Bias is described as the intentional or unintentional influence that the researcher may have on a study. Therefore, a bias will prejudice the results of the research findings. In general, bias is a type of systematic error that is introduced into the sampling or testing and encourages one outcome over another.

the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?