Biology 2008 JAMB Past Questions - Question 31: In a typical freshwater habitat, the edge of the stream or pond constitutes the

Correct Answer

C

Explanation

CThe edge ofthe fresh water such as pond is called the surface edge zone and it forms part of the littoral zone. This is because lentie or slowflowing-fresh water is divided into two major zones the littoral and benthic. the littoral zone is the shadow part of fresh water that has a rooted to the bottom. the zone has enough light penetration and high photosynthetic activities. the Benthic zone is the deepest part of fresh water and does not have rooted vegetation. tide is the alternate rise and fall of the marine (ocean)approximately twice a day due to gravitational effects of the sun and moon. tide does not occur in the fresh water and so it has no tidal or intertidal zone which is a zone between the high and low tide level. Euphotic zone is a zone at which light penetrates or has sufficient light. it is not peculiar to the surface edge zone as it affects the surface and middle zones of fresh water