What do cellulose and lignin fibers do in the body?

Phasic receptors

The following question came from the Mastering Biology homework.  A spaceship is designed to support animal life for a multiyear voyage to the outer planets of the solar system. Plants will be grown to provide oxygen and to recycle carbon dioxide. Since the spaceship will be too far from the sun for photosynthesis, an artificial light source will be needed. Suppose a plant has a unique photosynthetic pigment and the leaves of this plant appear to be reddish yellow. What wavelengths of visible light are absorbed by this pigment?(a) blue and violet(b) green and red(c) red and yellow(d) green and yellow Explain why (a) is correct.  (Note: you must adequately explain/defend your answer to demonstrate that you truly understand the material to earn points.)

What terms refers to the sacs that develop in the weakened areas of the intestinal wall?

Research aligned with this worldview focuses on asymmetrical power relationships and inequities, while linking political and social action to confront social oppression at all levels.

When the chemical reaction shown below is balanced, what is the coefficient in front of hydrogen peroxide? H2O2 (aq)  

In an organic synthesis reaction, a student obtains 4.86 g of product.  If the percent yield for the reaction was 86.9 %, what was the theoretical yield?

1pt – Opioids can reduce perception of sensations initiated by

In the sympathetic division, where are the cell bodies of preganglionic neurons located?

True/False Section