I’m looking for the answer q 1 and 2 please

Which statement is true about the cell theory? a) it is well-supported by evidence. b) it is unchangeable and permanent.

Most crimes involve some evidence relating to the human body; for that reason, what related science is frequently used in forensic investigations? a)psychiatry b)physics c)botany d)biology

Which of the following is an abiotic factor in an ecosystem? a. bacteriab. airc. niched. grass(abiotic=non-living) me !