The zygote must contain genetic information from the mother and from the father, so the gametes must contain half of the chromosomes found in normal body cells.
Hope this helps:)
Xerostomia
The medical term for this condition is xerostomia. Xerostomia
refers to abnormal dryness of the mouth which may be caused by a reduction in
the volume of saliva. Saliva is an important fluid in the body that assists to
protect and maintain oral health.
Answer:
Extinction is the natural process by which species die off.
B. because first of all those animals evolved before humans, and also from very different species than did humans. If humans have plants as their descendants/ ancestors that would make us question everything we know about our existence.
