BIO130:Fundamentals Of Biology

Module 6 Homework Assignment

BIO130 : Fundamentals of Biology

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2008-xx-xxxxxx-BIO130-M6HW-FL .doc List three abiotic factors in the environment of a fish

The abiotic factors in the aquatic ecosystems include temperature of the water , salinity of the water , presence of dissolve gases such as oxygen and carbon dioxide Describe two ways that decomposers differ from herbivores

Decomposers are organisms that feed on dead and decaying material including the waste material of other organisms . As they break down complex substances into simpler ones

, they provide essential nutrients to other organisms . The decomposers include several organisms including bacteria , fungi , insects , protozoan , mushrooms , and worms . Decomposers play a vital role in the food chain . Herbivores is an organisms that will not feed on decomposing plants , wastes or animals , but on leaves roots , barks and other plant products . They include several organisms including parrots , koala , bear , rodents , butterflies , etc

Why must people who live in countries that are not able to produce surplus food eat grains

People living in poor nations eat only food grains for two major reasons . Firstly , it is very convenient to transport food grains as it does not need any industrial processing , packaging , etc . Secondly consumption of complex foods including non-vegetarian food requires more energy (as energy may get passed along the food chain ) and hence is too costly to afford to people living in poor nations

Why is a food web better than a food chain as a way to describe a community

A...