Balance of nature questions | form two Biology

Suppose you had a study tour visit to Serengeti National park and you find the following organisms; lions, buffalo, wildebeest, hyena, shrubs, grasses and bacteria.

(a) Construct a food web that accommodates all the organisms.
(b) What will happen into the ecosystem if bacteria are eliminated?
 

In the food chain: Grass → Zebra → Lion. A lion is
A a primary consumer.
B a secondary consumer.
C a producer.
D a tertiary consumer.
E a decomposer.

The interaction between two species in which both organisms benefit is known as

1. ectoparasite
2. parasitism
3. commensalisms
4. mutualism
5. endoparasite.

Give the meaning of the following Biological terms as used in the ecosystem:
(i) Biotic components
(ii) Abiotic components
(iii) Food chain
(iv) Food web.

Construct a feeding relationship which accommodates the following organisms:
Grasses, Goat, Sheep, Shrubs and Man.

With examples, state the meaning of “abiotic” and “biotic” factors of the  environment.

1. Differentiate the terms “food chain” from a “trophic level”.
2. Construct a food chain by using organisms named in the following list:   Grass, Bacteria, Lions and Zebra.

Which of the following parasitic organisms is typicall ectoparasite?

1. Tick
2. Tapeworm
3. Plasmodium
4. Round worm
5. Lichen.

Which food chain represents the correct flow of energy in the ecosystem?

1. Hawk → Grasses → Grasshopper → Lizard
2. Grasses → Hawk → Lizard → Grasshopper
3. Lizard → Grasses → Grasshopper → Hawk
4. Grasses → Hawk → Grasshopper → Lizard
5. Grasses → Grasshopper → Lizard → Hawk

Poor waste disposal creates problems in the environment. In six points, justify this statement.