speract
sea urchin peptide hormone, from the jelly coat of the eggs of the sea urchins Strongylocentrotus purpuratus and Hemicentrotus pulcherrinus, affecting motility and metabolism. Receptor is a plasma membrane guanylate cyclase.
Seed plants are vascular plants. They differ from the other vascular plants in producing seeds that germinate into a new..
Some of the body movements can be controlled at will, others cannot. The body has a motor program, which is the pattern ..
Plants protect themselves by releasing hydrogen peroxide to fight against fungal invasion. Another way is by secreting c..
Meet some of New Zealand's unique fauna, including endemic insects, frogs, reptiles, birds, and mammals, and investigate..
Darwin's Finches are an example of natural selection in action. They are an excellent example of the way species' gene p..
Humans are capable of only one mode of reproduction, i.e. sexual reproduction. Haploid sex cells (gametes) are produced ..