Before coming to lab carefully read the previous pages on De

Before coming to lab carefully read the previous pages on Deuterostome Dissection k Chordata (Osteichthyes and Amphibia) Lab then answer these pre-lab questions. Be prepared to hand in your responses to the pre-lab questions at the start of lab. Explain five advantages of living a life in the water rather than moving onto land? Explain five disadvantages of staying in the water rather than moving onto the land?

Solution

2.

Less availability of oxygen

Lack of solid surface for adherence

Less availability or lack of sunlight after few meters under water

Water living species need fins or tails for easily movement under water. That makes an obligatory adaptation for organisms.

Different mechanisms need for survival in marine water and freshwater.