A (stem cell research) may pertain-to a professor.Logical formLearned from6 sentences. Pictures may show (stem cells).Logical formLearned from6 sentences. Research may use (stem cells) from embryos.Logical formLearned from6 sentences. A height may pertain-to a stem.Logical formLearned from6 sentences. Cells may be created from embryonic (stem cells).Logical formLearned from6 sentences. Therapies may use embryonic (stem cells).Logical formLearned from6 sentences. A (stem base) can be bulbous.Logical formLearned from6 sentences. A stem may be covered with hairs.Logical formLearned from6 sentences. Stems may root at nodes.Logical formLearned from6 sentences. Stems can be pithy.Logical formLearned from6 sentences. A perennial grass may form clumps of stems.Logical formLearned from6 sentences. A stem can be above ground.Logical formLearned from6 sentences. Nodes can be on a stem.Logical formLearned from6 sentences. A stem can be tough.Logical formLearned from6 sentences. Stems can be bushy.Logical formLearned from6 sentences.