Answer:
option D: produced its own contractile cycle
Explanation:
option D: produced its own contractile cycle
Autorhythmicity referred to that capability of cells of cardiac muscles that help to beat heart regularly and rhythmically. It is due to that potential which is produced by cells of cardiac muscles. these cells does not required stimulation to beat heart.
autorhythmic cells are generate at sinoatrial and atrioventricular nodes.
Answer:
The answer is social clock.
Explanation:
This phenomenon explains the expectancy of society to achieve certain things at a determined time (for example, graduating from high school at age eighteen or getting married in your twenties). However, these expectations are variable in different parts of the world.
Bernice Neugarten proposed the idea in order to explain the aging process. She stated that events in people's lives occur in a predictable manner.
I think the answer is B. Secular Government
Answer:
The answer is A. reinforced; imitate.
Explanation:
The branch of behavioral studies known as operant conditioning states that a conduct is more likely to be repeated if it is reinforced, positively or negatively. In this case, the reinforcement is positive (a reward: consolation).
Negative reinforcement is also possible: it occurs when an unpleasant stimulus is removed after a behaviour is presented. For example, a parent will stop nagging if his/her child cleans up the room.
Answer:
b. FBX is a dominant allele.
Explanation:
If Darren's father has the gene for FBX and Darren's mother does not have this gene, but Darem has the disease, it means that the disease is encoded by a dominant allele.
We can draw that conclusion, because as we have seen, the alleles that Darren received from his mother and father responsible for bone development are different, so one is dominant and the other is recessive. Recessive genes are only expressed and homozygous, that is, Darren would only express the gene for bone development if both his father and mother donated recessive alleles.
On the other hand, dominant genes are expressed, even in the presence of a recessive gene. Therefore, we can say that the gene that Darren received from his father is dominant and was expressed even in the presence of the recessive gene, which Darren received from his mother.
