Refer to the figure. The organisms shown most likely obtain nutrients by _______, and their movement most likely consists of _______.
A) engulfing bacteria; free swimming using flagella
B) photosynthesis; free swimming with cilia
C) photosynthesis; floating in plankton
D) engulfing bacteria; floating in plankton
E) photosynthesis; free swimming using flagella

Question

Refer to the figure.  The organisms shown most likely obtain nutrients by _______, and their movement most likely consists of _______.
A) engulfing bacteria; free swimming using flagella 
B) photosynthesis; free swimming with cilia 
C) photosynthesis; floating in plankton 
D) engulfing bacteria; floating in plankton 
E) photosynthesis; free swimming using flagella

Quizplus · Accepted Answer

The organisms shown in the figure are most likely phytoplankton, which obtain nutrients through photosynthesis and move by floating in plankton. The presence of chloroplasts in the organisms suggests that they are capable of photosynthesis, and their small size and lack of visible appendages indicate that they do not actively swim, but rather float passively in the water.

Refer to the Figure