Phytoplankton are capable of... __ only photosynthesis only cellular respiration photosynthesis AND cellular respiration none of the above

## Step 1<br />Phytoplankton are a type of algae that live in the water column of oceans, seas, and freshwater bodies. They are autotrophic, meaning they can produce their own food.<br /><br />## Step 2<br />Phytoplankton are capable of photosynthesis. This is a process where they use sunlight, carbon dioxide, and water to produce glucose and oxygen. This process is similar to how terrestrial plants produce their food.<br /><br />## Step 3<br />In addition to photosynthesis, phytoplankton also perform cellular respiration. This is a process where they break down the glucose they produce during photosynthesis to release energy. This process is similar to how all living organisms, including terrestrial plants, break down glucose to release energy.<br /><br />## Step 4<br />Therefore, phytoplankton are capable of both photosynthesis and cellular respiration.