Answer: <u>Option C, they digest pathogens</u>
Explanation: Monocytes are involved in the process of digesting pathogens and infected cells, termed as phagocytosis.
Monocytes don't produce antibodies, only B cells can produce antibodies. So, option A and D are incorrect. Also they appear colorless when observed under the microscope. They don't appear granular, so option B is also incorrect.
The black box because black reflects more heat than white
The best answer would probably be D, because they'd need the enough land or they wouldn't even be able to think about building it.
The chromosomes become visible when they hit the mitosis stage in the cell cycle.
