Which type of skeletons do invertebrates such as crabs have? A. endoskeleton B. exoskeleton C. articulated D. arthropoidal

Which of the following is called the master gland? a. Pancreas b. Thyroid c. Pituitary d. Adrenal

When a reaction is at equilibrium, increasing the temperature favors the reaction that releases energy as heat. True or False?

What are the two main reasons why mitosis is vital to our survival

Tuberculosis is mostly found in what place in the world

Cataplexy is a sleep disorder in which: a. atonia suddenly occurs in an awake, alert individual. b. atonia does not occur during REM and people "act out their dreams." c. one cannot go into REM sleep. d. one is overcome by a sudden urge to sleep.

Why is carbon essential to all known life on Earth?

Why are only inherited traits involved in the process of evolution?

What are uses of nuclear power?

What is the ultimate energy source for the producers

Which process is a form of mechanical weathering? A. Hydration B. Carbonation C. Exfoliation D. Oxidation