Answer:
The immune system protects the host from pathogenic organisms (bacteria, viruses, fungi, parasites). To deal with this array of threats, the immune system has evolved to include a myriad of specialised cell types, communicating molecules and functional responses.
Explanation:
Answer:
B) detailed record keeping
Explanation:
I just took this test and this was the correct answer.
Because a chemical change occurred. heating, baking, cooking are can cause chemical changes. color change most frequently represents a chemical change
I think its a and b, but i dont know what kind of rock it is. my guess is a metamorphic or sedimentary.
Answer:
No, The respiratory system does not work alone in transporting oxygen through the body. The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.
Explanation:
Hope that helps!
