Deanna has hazel eyes and Reza has brown eyes. Their son, Bijan, has brown eyes. Bijan has received different forms of a gene from each parent. He is said to be __________ for the trait

When a neuron fires, it fires in a(n) ________ fashion as there is no such thing as "partial" firing

a. all-or-none b. rapid fire c. accidental patterned d. quick successioned e. correlated

Some researchers generally assume if a procedure is psychologically or physically risky, it is more ethical to do such research on animals than on humans

Indicate whether the statement is true or false