What is the name of the neurotransmitter that excites muscle cells (causes them to contract) ?

What is an advantage of using cell culture rather than bacterial culture to produce biological molecules? Cell culture can be used to produce fat-soluble vitamins. Cell culture can be used to produce steroid hormones.

As infants gain familiarity with repeated exposure to a visual stimulus, their interest wanes and they look away sooner. The decrease in an infant's resposniveness is called ...

What does it mean a an electron

What is the term for an organism that obtains its energy by eating other organisms?

Fossils are used to determine a likely pattern of how vertebrates have changed over time. True or false

11. What is the basis for classification of bacteria?

Organisms typically have only one copy of each allele. true false

N general terms, equilibrium means a state of balance. Genetic equilibrium can occur if the allele frequencies in a population do not change over time.

Examples of archaebacteria examples of archaebacteria

What are the basic units of most biomolecules contain