Answer:phytoplanktons are photosynthestic organism. They have the ability to produce their own food.
Explanation: Because of there small size they could absorb nutrients in the water even at lower concentration and convert it to energy need for there growth.
Its is said that phytoplanktons are one of the largest producer of oxygen gas.
<span>c. are formed from claudins and occludins.</span>
D. the <span>stomata close to preserve water and gas exchange decreases.</span>
