Answer.
A – apparent, absolute
Explanation:
Since, the apparent brightness is the brightness seen from the earth whereas the absolute brightness is the brightness that star would have when it would have been at a standard distance. Hence, correct answer is apparent and absolute brightness.
Thus, the correct answer is option). A.
Sickle-cell anemia affects the shape of red blood cells, which is the answer. It can also lead to severe hemoglobin deficiency, i.e. anemia.
HUMANS ARE MADE OUT BACTERIA AND BACTERIA IS A CELL AND HUMAN ARE MULTIPLE CELLS
You are correct, it is an embryo. I'm pretty sure the child is called a fetus for the rest of the pregnancy.
Answer:
In the given case, the upsurge in the size of the squirrel population would have taken place due to genetic variation and more availability of food. Genetic variation plays the most important role in the process of natural selection and is the basic mechanism of evolutionary change. Genetic variation refers to the variation in DNA between the individuals.
Thus, it can be said that in the given case, the amount of food, which was less in the past may have got increased, and the squirrels of the coming generations would have demonstrated higher levels of genetic variation than shown by the previous generations. Thus, the number of squirrels got increased in the population.