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.
Neurons generate electric signals that they pass along to the other neurons or target tissues. In this tutorial, you wil..
Darwin's Finches are an example of natural selection in action. They are an excellent example of the way species' gene p..
Illusions are the perceptions and sensory data obtained from situations in which human error prevents us from seeing the..
This tutorial recognizes the importance of food as a source of energy that will fuel many biological processes. A good d..
The arthropods were assumed to be the first taxon of species to possess jointed limbs and exoskeleton, exhibit more adva..
The endoplasmic reticulum and Golgi apparatus are the organelles involved in the translation step of protein synthesis a..
