After its ovulation from the ovary, it goes to the oviduct or the fallopian tubes where the fertilization usually takes place
ovary: Its function is to produce ovum by the process of oogenesis.
oviduct or fallopian tube: function is to provide for the egg to get fertilized here.
If no fertilization takes place, then the ovum or the egg is known as unfertilized egg or ovum
Now the egg travels to the uterus where it does not get implanted as it is not fertilized.
uterus: here, the fertilized zygote is implanted for it to change into a foetus or embryo.
The egg that is unfertilized goes out through the female genital tract (vagina)
along with the menstrual flow.
Sickle cell anemia is persistent in the tropics because those with sickle cell anemia cant contract the malaria virus because of the shape of their blood cells, and this is advantageous in the tropics where there are more malaria cases. So those with sickle cell anemia live to pass on their genes.
Weather relates to the short term natural occurrences (like rain, storms, sunshine, etc) while climate refers to the long term, general state of a biosphere (like the average temperatures in certain season, how much and how periodically in rains over a long period of time, etc)
Hope this helped.
Answer:
Adaption is a gradual process of change or modifications of animal body either physically, structurally or behavioral changes in order to thrive and adjust better in the changing environment for survival.
Example is the adaptation by Polar bear. In the coolest arctic region, polar bear possesses long white furs with big sized paws and long hair. This help them to blend with white snowy color of environment and the big sized paws prevents them from slipping in ice and also could dig in the ice to take shelter is hostile weather like snowstorm. They have thick layers of fat beneath the skin that keeps them warm.
Answer:
Continental lithosphere can reach the subduction zone
Explanation: