( ( ( ( ( Identify ( independent ( , dependent ) ) ) ( ( variables and ) constants ) ) ( in ( the experiments ) ) ) ( ( involving adaptation ) ( to ( biotic factors ) ) ) ) . )
(ROOT (NP (NP (NP (ADJP (RB Identify) (JJ independent) (, ,) (JJ dependent)) (NNS variables) (CC and) (NNS constants)) (PP (IN in) (NP (DT the) (NNS experiments)))) (VP (VBG involving) (NP (NN adaptation)) (PP (TO to) (NP (JJ biotic) (NNS factors)))) (. .)))
Identify independent, dependent variables and constants in the experiments involving adaptation to biotic factors.
(ROOT (S (NP (JJ Dependent) (NN variable)) (VP (VBZ is) (NP (NP (DT the) (NN term)) (PP (IN for) (NP (NP (DT the) (VBN affected) (NN factor)) (PP (IN in) (NP (DT an) (NN experiment))))))) (. .)))