An organism is found that has the following traits: • has a backbone • has lungs • can reproduce on land what kingdom does this organism most likely belong in? a. animalia b. plantae c. prostisa d. fungi

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

Leila has dimples because she received a gene copy from her father that coded for dimples. this means that dimples are an example of a trait that is

Cedric has a low fever and minor aches. yesterday, he went to the doctor for his booster shot and receive the flu shot. which best explains why he has this reaction?