Which of the following types of molecules is most likely to be found embedded in plasma membranes to aid in cell-to-cell recognition?
A. Cellulose
B. Glycogen
C. Glycoprotein
D. Nucleic Acid

Coquina, a type of limestone, forms from shell fragments that settle on the ocean floor. what type of rock is coquina?

Match the examples to the correct level of organization. 1. system level roses, snakes, puppies 2. organism level roots, stamens, leaves 3. tissue level bone, cartilage, blood 4. organ level heart, veins, arteries

Which worm has eyespots that are used to detect light? a fluke b marine worm c planarian d tapeworm