Which of the following describes plankton?Question 2Select one:a.diverse group of mostly microscopic organisms that drift in marine and fresh water systems and serve as a food source for larger aquatic organismsb.diverse group of exclusively microscopic organisms that drift in marine and fresh water systems and serve as a food source for larger aquatic organisms.c.diverse group of exclusively microscopic organisms that drift in fresh water systems and serve as a food source for larger aquatic organisms.d.diverse group of exclusively microscopic organisms that drift in marine ecosystems and serve as a food source for larger aquatic organisms.

Plankton is the name given to all the organisms in water that exist in a drifting, floating state. What type of plankton is the primary food source, either directly or indirectly, of all sea organisms?zooplanktonphytoplanktonmegaplanktonholoplankton

Planktons are free floating, unicellular organisms. They are either plant like or animal like. They belong to the kingdomArchebacteriaProtistaEubacteria

Which of the following describes ecosystem diversity?(a) Many different species of fish and coral in a coral reef.(b) A forested mountain with a river flowing through into a nearby lake(c) Pea plants having different height, seed colour, and flower colour.(d) A large airport hub with connections to many other cities.

Question 11Which of the following might be included in a typical ecosystem?Animals of varying sizes and shapes.     A water source of particular salinity.     Photosynthetic plants.     A variety of microscopic life.     All of the above.

Earthworms and leeches are one group of ______, while another group is the marine, segmented worms called polychaetes.Multiple choice question.crustaceansarthropodsmollusksannelids