Annelids have closed circulatory system
Answer:
I believe the answer is A...I'm not completely sure but I tried my best to think.
Mitochondria are involved in cellular respiration, where they produce adenosine triphosphate (ATP). ATP is the cells energy carrier or the cells energy store molecule.
Answer:
If you are holding something cold you will feel cold.
Explanation:
Answer:
Mast Cells
Explanation:
Mast cells release histamine in the blood stream, when they detect a substance that triggers an allergic reaction, also called an allergen.
