( ( ( 1 - ) ( ( ( Draw ( ( a pyramid ) ( of ( ( ( energy ( for ( a ( local ( food chain ) ) ) ) ) and ) ( ( food chains ) ( in ( different ecosystems ) ) ) ) ) ) ) ( ( 2 - ) ( ( Calculate ( energy values ) ) ( for organisms ) ) ) ) ( in ( pyramids ( of ( ( energy and ) biomass ) ) ) ) ) ) . )
(ROOT (X (NP (CD 1)) (: -) (FRAG (VP (VB Draw) (NP (NP (DT a) (NN pyramid)) (PP (IN of) (NP (NP (NP (NN energy)) (PP (IN for) (NP (DT a) (JJ local) (NN food) (NN chain)))) (CC and) (NP (NP (NN food) (NNS chains)) (PP (IN in) (NP (JJ different) (NNS ecosystems))))))) (NP (NP (CD 2)) (: -) (NP (NP (JJ Calculate) (NN energy) (NNS values)) (PP (IN for) (NP (NNS organisms))))) (PP (IN in) (NP (NP (NNS pyramids)) (PP (IN of) (NP (NN energy) (CC and) (NNS biomass))))))) (. .)))
1- Draw a pyramid of energy for a local food chain and food chains in different ecosystems 2- Calculate energy values for organisms in pyramids of energy and biomass.
(ROOT (S (NP (NNP Ecological) (NNS pyramids)) (VP (MD can) (VP (VB demonstrate) (NP (NP (DT the) (NN decrease)) (PP (IN in) (NP (NN energy) (, ,) (NNS biomass) (CC or) (NNS numbers)))) (PP (IN within) (NP (DT an) (NN ecosystem))))) (. .)))