It's composed of the brain & spinal cord in vertebrates; scientists abbreviate it CNS
A termite's intestinal tract can break down this plant substance; yours can't
3 kinds of these are sensory, motor & mixed
This "ology" is concerned with the development of the fertilized egg & the growth of the fetus
They're a plant's anchor & can have a fibrous or tap system
This calcified tissue that surrounds the pulp cavity of a tooth is a bone-like substance
Around 1940 scientists found that mutations in these chromosomal units result in defective enzymes
It's defined as a change in the hereditary material of an organism's cells
This French chemist presented his germ theory of fermentation in an 1857 paper, "On Lactic Fermentation"
In a bird's egg, it's contained within the vitelline membrane