The formalin is great for preserving structures, but for anemones, it prevents study of DNA or of the chemistry of the body.
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	2:det	Discourse=elaboration-additional:54->51:1|Entity=(55-substance-giv:act-cf1*-2-coref
2	formalin	formalin	NOUN	NN	Number=Sing	4	nsubj	4:nsubj	Entity=55)
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	cop	4:cop	_
4	great	great	ADJ	JJ	Degree=Pos	0	root	0:root	_
5	for	for	SCONJ	IN	_	6	mark	6:mark	Discourse=purpose-goal:55->54:0
6	preserving	preserve	VERB	VBG	VerbForm=Ger	4	advcl	4:advcl:for	_
7	structures	structure	NOUN	NNS	Number=Plur	6	obj	6:obj	Entity=(57-abstract-new-cf2-1-coref)|SpaceAfter=No
8	,	,	PUNCT	,	_	9	punct	9:punct	_
9	but	but	CCONJ	CC	_	14	cc	14:cc	Discourse=adversative-contrast_m:56->54:1
10	for	for	ADP	IN	_	11	case	11:case	_
11	anemones	anemone	NOUN	NNS	Number=Plur	14	obl	14:obl:for	Entity=(58-animal-new-cf5-1-sgl)|SpaceAfter=No
12	,	,	PUNCT	,	_	11	punct	11:punct	_
13	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	14	nsubj	14:nsubj	Entity=(59-event-new-cf7-2-disc(55-substance-giv:act-cf1*-1-ana)
14	prevents	prevent	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	conj	4:conj:but	_
15	study	study	NOUN	NN	Number=Sing	14	obj	14:obj	_
16	of	of	ADP	IN	_	17	case	17:case	_
17	DNA	DNA	NOUN	NN	Abbr=Yes|Number=Sing	15	nmod	15:nmod:of	Entity=(60-substance-new-cf6-1-coref-DNA)
18	or	or	CCONJ	CC	_	21	cc	21:cc	_
19	of	of	ADP	IN	_	21	case	21:case	_
20	the	the	DET	DT	Definite=Def|PronType=Art	21	det	21:det	Entity=(61-abstract-new-cf3-2-sgl
21	chemistry	chemistry	NOUN	NN	Number=Sing	17	conj	15:nmod:of|17:conj:or	_
22	of	of	ADP	IN	_	24	case	24:case	_
23	the	the	DET	DT	Definite=Def|PronType=Art	24	det	24:det	Entity=(62-object-new-cf4-2-sgl
24	body	body	NOUN	NN	Number=Sing	21	nmod	21:nmod:of	Entity=62)61)59)|SpaceAfter=No
25	.	.	PUNCT	.	_	4	punct	4:punct	_
