The right option is; Hooke
Robert Hooke was an English scientist that first recognized the cell as the universal unit of life. In 1665, Robert Hooke observed honeycomb-like structure when he viewed very tiny slices of cork using a coarse compound microscope. He called the structures cells but he did not know their actual structure and function.
Hemoglobin carries the oxygen.
Answer: Hypertonic solution
Explanation: In hypertonic solutions solute concentration is higher that those inside the cells. That means there is a different pressure in and out of the cell and in order to reach the equilibrium the cell has to release water to the medium and ever the concentration. As a result of this stressful conditions cells shrink which make pickles smaller.
800,000 to 1.5 million nephrons on average per kidney