sentence2_structure: Only animals<>have<>muscle tissue and nervous tissue
sentence1: We have implicated the Xlim-1 protein in the stimulation of production of signals that induce neighboring cells to nervous tissue (neural induction) and modify ventral mesoderm to muscle and other dorsolateral tissues (dorsalization).
sentence2: Only animals have muscle tissue and nervous tissue.
question: Only animals have muscle tissue and what other type of tissue?