Answer:
Using statistics!
Explanation:
If the predecessors had genetically transmitted disease,or specific features,the family tree is useful in identification and better understanding.
Answer:
False
Explanation:
When one of the glands is removed, the other continues to perform its function because they are independent entities that can continue to secrete hormones. This happens with the adrenal glands for example.
Answer:
False
Explanation:
There are multiple ways in which the food supply can be introduced to pathogens e.g.
1)inadequate handwashing.
2)cross-contamination.
3)storage and cooking temperatures.
4)contamination of food by animal waste
Answer:
It stimulates the host cell to produce antiviral toxins, which are released continually into respiratory tract, to destroy the viral cells before they are recognized by the white blood cells.