Answer:
What if what if what if what if?
Explanation:
What if- I turn into a What if ?
They put a camera up to the microscope! I’ve done that with my phone camera and it’s so cool!
Answer: Option B
Explanation: The thin layer that forms the outer covering of the cell is known as the cell membrane. It is composed of the lipid bilayer which as embedded proteins.
This membrane is selectively permeable which means it allows only specific molecules to pass through them.
The main function of cell membrane is to protect the cell from the outer environment and by the invasion of harmful bacteria and viruses.
Water, soil, sunlight, H20, and nutrients.
Most reasonable answer is the swallowable camera one. mris and cat scans were invented in the 70s and the rest of the answers are around the 1800s or before.