They are the energy base of the food chain for all aquatic organisms, without them all aquatic organisms would most likely parish.
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
Answer:
the forces between the two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them
Answer:
Charles Darwin came up with the theory of evolution.
Answer:
D
Explanation:
Because every system in the body is vital