Phytoliths are plant microfossils made of:

George Beadle and Edward Tatum at Stanford experimented with a bread mold (Neuropora crassa). They induced genetic mutations using x rays that affected enzymes involved in making amino acids. Their experiments showed that genes are directly linked to enzyme production.  Their landmark explanation that each gene controls the production of a single enzyme, which in turn regulates a specific step in a metabolic pathway, is known as the _____________________________________ hypothesis.

George Beadle was an American geneticist in the early-to-mid 20th century (20s-60s). Which organism(s) did he work on? Mark all that apply.

Which of these allows more potassium to exit the neuron and helps in maintaining the resting membrane potential?

Place the reflex arc components in order from detecting a stimulus to response. 1. Motor neuron2. Effector3. Sensory neuron4. Integration center5. Sensory receptor

Which type of brain wave occurs at regular intervals when a person is awake but not when a person is sleeping?

Damage to which portion of the limbic system results in loss of memory of recent events and difficulty committing anything new to memory?

Which cells are ciliated and function to move/make CSF?

Na+/K+-ATPase is considered to be an electrogenic pump because

Which is the longest nerve in the body and innervates the extensor muscles of the knee joint?