Answer:
D
Explanation:
Lymphocytes are the second line of defence
First line of defence indiscriminately defends against all pathogens unlike secondary response which is targeted. First line of defence refers to the external body components like skin, secretions from the body in the alimentary canel
Mucus traps pathogens. Stomach acid kills pathogens
If a set of data is highly precise, it generally "indicates that the data must have a high level of accuracy" although there can be other crucial factors affecting the data as well.
Plasmids are small DNA fragments that occur in many bacterial cells.
Answer:
It was the early day in Germ Theory contagious diseases were thought to be caused by fungi or bacteria.
Explanation:
He tried to promote his hypothesis as a law. He used a new experimental method to test his hypothesis
Answer:
The oxygen atoms have electrons more often than hydrogen.
Explanation:
