Answer:
Blood cells are produced in the bone marrow of the body more specifically they become blood cells from first being stem cells which then divide until they reach a mature red blood cell stage. ( or other types of cells, stem cells are like the blank template for either red blood cells, white blood cells, or platelettes.)
Explanation:
1) pathogen
2) viruses
Some bacteria are not harmful to your body hence not all of them are pathogens
Answer:
Explanation: B IS THE CORRECT ANSWER THAT BIT*H PICKED THE WRONG ANSWER
The energy needed by a system to initiate a process is called as the activation energy. It describes the minimum energy which must be available to a chemical system with potential reactants to result in a chemical reaction. Hope this answers the question.
