A cell with a nucleus. The opposite is a prokaryote; a cell without a nucleus.
The right answer is <span>Refractory period.
At the moment when the action potential is emitted, the fiber being depolarized, it is impossible to depolarize it again. It is, therefore, necessary to wait until the membrane potential returns to a value below the critical threshold in order to be able to excite it again. We are thus led to distinguish two periods that characterize its excitability.
An absolute refractory period: during which any stimulation, even supraliminal, is ineffective since the fiber is already depolarized.
A relative refractory period: during which a second action potential can be omitted provided that the depolarization produced by the excitation reaches the critical threshold, which implies that it is more important since the value of the resting potential has not been restored yet.</span>
A all cells have the same number of chromosomes hope this helps!! and C
Answer:
Obstructive shock.
Explanation:
Obstructive shock may be defined as the shock that are associated with the physical obstruction of the vessels of the heart. The cardiac tamponade and Pulmonary embolism are included under obstructive shock.
Thrombosis is the blood clot formation in the blood vessels. This has caused the pulmonary embolsim. This is referred as obstructive shock as the heart vessel has been damaged in this case and also shows the cardiogenic shock in the patient.
Thus, the correct answer is obstructive shock.
Answer:
2 out of 4
Explanation:
Let the allele for cleft chin be represented by A, while the alternate recessive version would be a.
A parent that is heterozygous for cleft chin would have the genotype Aa.
A parent without cleft chin would have the genotype aa.
Aa x aa
Aa Aa aa aa
Aa - cleft chinned = 2/4
aa - normal chin = 2/4
Thus, two out of every four (2/4) of their offspring would have cleft chin.
