( ( Invertebrate embryos ) ( ( ( develop ( at ( different rates ) ) ) ( depending ( on ( ( the temperature ) ( of incubation ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Invertebrate) (NNS embryos)) (VP (VBP develop) (PP (IN at) (NP (JJ different) (NNS rates))) (PP (VBG depending) (PP (IN on) (NP (NP (DT the) (NN temperature)) (PP (IN of) (NP (NN incubation))))))) (. .)))
Invertebrate          embryos develop at different rates depending on the          temperature of incubation.
(ROOT (S (NP (NP (NNS Invertebrates)) (-LRB- -LRB-) (CC and) (NP (JJR higher) (NNS animals)) (-RRB- -RRB-)) (VP (MD can) (ADVP (RB also)) (VP (VB be) (VP (VBN placed) (PP (IN in) (NP (NP (CD one)) (PP (IN of) (NP (CD two) (NNS groups))))) (PP (VBN based) (PP (IN on) (SBAR (WHADVP (WRB how)) (S (NP (PRP they)) (VP (VBP develop) (PP (IN as) (NP (NNS embryos))))))))))) (. .)))
Invertebrates (and higher animals) can also be placed in one of two groups based on how they develop as embryos.