Ecology Answers

How does the wildlife get affected by the degradation of the ecosystem due to 

various causes? Also give measures for the conservation of the wildlife. 

(5+5)

Write the characteristic features of a terrestrial or an aquatic ecosystem. (10)

List the analytic and synthetic characters of a biological community. Explain 

in one or two lines the information provided by each character about the 

community. (10)

Describe the ecological adaptations in plants and animals when there is 

scarcity or abundance of water with labeled diagrams. (10)

Prepare a detailed account, on any one of the given environmental 

components: water, soil. (10)

b) State whether the given statements are true or false: 

i) Hippocrates was the first person to introduce ecological approach 

long before the term ecology was coined.

ii) Synecology is the study of individuals or populations of a single 

species with respect to their environment.

iii) Most gaseous cycles are imperfect biogeochemical cycles. 

iv) Competetion in the community is not limited within the species.

v) Autotrophs are capable of photosynthesis.

Define the following terms:

i) Keystone species 

ii) Biomagnification

iii) Field capacity

iv) Ecological pyramids

v) Niche

Lichens secrete acids that often break up the rocks on which they live. Then other organisms, such as flowering plants, can grow on the rocks. Which process best describes the change the ecosystem is undergoing?

Bacteria, Virus, Fungus. Write these in order of smallest first to largest last

Plants capture carbon dioxide and convert it to sugar. How is it possible for a plant to get more than once the same molecule of carbon dioxide?