Make an appointment with your doctor if you're feeling fatigued for unexplained reasons. Some anemias, such as iron deficiency anemia or vitamin B-12 deficiency, are common.
Fatigue has many causes besides anemia, so don't assume that if you're tired you must be anemic. Some people learn that their hemoglobin is low, which indicates anemia, when they go to donate blood. If you're told that you can't donate blood because of low hemoglobin, make an appointment with your doctor.
A cell that just fertilized has to divide 6 times to form a 64 cell blastomere.
<u>Explanation:</u>
Human reproduction begins with the fusion of male gamete sperm and female gamete ovum. The fusion of sperm and ovum forms the zygote that is diploid. The zygote then undergoes mitotic division to develop into embryo.
The zygote first divides into two and the two individual cells divide again to form four individual cells and so on. Thus the number of cells after each division can be represented by the equation 
where n is the number of divisions. in the question it is given that the blastomere has 64 cells.
n=6
This means that the fertilized cell has to divide 6 times to develop into 64-celled blastomere.
Answer:
This statement is true
Explanation:
Different substances such as growth factors and nutrients affect the mechanism of density-dependent inhibition of growth as cells become more and more numerous
Answer:
The correct answer is - A and C,
Explanation:
According to the graph, the following conditions are matched correctly with the temperature seasonal forest with other biomes:
The temperature seasonal forest has the precipitation range from 50 cm to 250 cm rainfall per year approximately. The average rainfall from this would be 150 cm/year or between 100 to 200 cm per year.
B. the temperature seasonal forest has a temperature between 15 degrees Celsius to 20 degrees celsius which is warmer than the boreal forest that has a temperature between 0 to 15 degrees Celsius approximately.
