Gregor Mendel studied pea plants to determine
the patterns of inheritance. What is not a reason
Mendel used pea plants in his experiments?
Check all that apply.
o They reproduced sexually.
0 They were drought resistant.
They had traits that were easy to observe.
0 They only had two traits to study.

Match the following terms describing electrical events with the correct phases of the cardiac cycle. the ventricular muscle cells depolarize at the start of this phase. during this phase, na+ entry through the funny channels causes the pacemaker potential of sa nodal cells to gradually become less negative until it reaches threshold. the ventricular muscle cells repolarize right before this phase. the cytosolic concentration of calcium in the contractile cells of the ventricle is highest during this phase. a. isovolumetric relaxation b. ventricular ejection c. isovolumetric contraction d. ventricular filling

Models are non-visual ways of coummincating how someone thinks about something in the natural world

Which term describes a normal value for something in the body? a.homeostasis b.set point c.feedback loop d.integration center