 D-amino acids have also been detected in some tissues of marine invertebrates and might be involved in regulating osmotic pressure (Abe et al., 1999).
<coherence>  D-amino acids have also been detected in some tissues of marine invertebrates and might be involved in regulating osmotic pressure (Abe et al., 1999).
 D-amino acids have also been noticed in certain tissues of some marine invertebrates, and “ might be involved in regulating osmotic pressure (Abe et al., 1999).