True. The <span>self-domestication theory is most widely accepted by the scientific community to explain how dogs were domesticated.
The self-domestication theory states that animals which were once wild became tame and humanized without direct human interaction/breeding.</span>
Breast tenderness would be considered a presumptive sign of pregnancy.
The fertilization of sperm and ovum occurs at ampulla isthmic junction of fallopian tube. This ovum travels to the uterus and joins with the uterus for further development. Two weeks after the fertilization or conception, pregnancy is said to begin.
This is accompanied with missed periods or menstruation. Other important presumptive signs include nausea, vomiting, breast tiredness, back pain, poor sleep etc. In humans, the pregnancy or gestational period lasts for around 40 weeks or 80 days. Estrogen, progesterone and human chorionic gonadotropin are the three hormones that rise at the start of pregnancy.
Estrogen regulates progesterone and increases blood flow while progesterone prepares the uterus for implantation of fertilized ovum. The third hormones indicates the creation of placenta.
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Answer:
Republican and Democratic
Explanation:
These are the 2 major Politcal parties when running for president.
Assuming you mean Zeus, the king of Greek gods, Zeus was worshipped by the Greeks during the time of the ancient Greek empire.
