|
1) The interactions between the members of the same species are called a. interspecific interactions b. competition c. intraspecific interactions d. predation
|
||||
|
2) The human population was 85, 096, 000 in a. 1980 b. 1986 c. 1985 d. 1981
|
||||
|
3) The examples of impacts of humans on the balance of the ecosystem include a. overpopulation b. urbanization c. deforestation d. all of above
|
||||
|
4) The herbivores such as rabbits are also classified as a. secondary producers b. tertiary consumers c. primary consumers d. secondary consumers
|
||||
|
5) Epiphytes growing on other plants only for a. food b. reproduction c. space d. shelter
|
||||
|
6) The non-living factors of the ecosystem are called a. abiotic components b. biotic components c. biosphere components d. ecology components
|
||||
|
7) The examples of primary carnivores or secondary consumers are a. cattle, wolves and owls b. predatory birds, fox and snakes c. grasshopper, rabbit and deer d. fungi, protozoan and animals
|
||||
|
8) Eutrophication is the enrichment of water with nitrates and a. phosphates b. ammonia c. sulphur d. nitrogen
|
||||
|
9) Larvae breathe through the help of a. feeding brushes b. pair of air floats c. pair of spiracles d. pair of gills
|
||||
|
10) The breakdown of nitrogenous wastes and dead organisms proteins into ammonia is classified as a. ammonification b. assimilation c. denitrification d. nitrification
|
||||
|
11) In the components of the ecosystem, the phytoplankton is another name of a. shallow rooted plants b. fungi c. floating photosynthetic organisms d. protozoan
|
||||
|
12) What is the average thickness of the biosphere? a. 10 km b. 15 km c. 20 km d. 40 km
|
||||
|
13) The primary carnivores of the ecosystem are also classified as a. tertiary consumers b. primary decomposers c. primary consumers d. secondary consumers
|
||||
|
14) Considering the nitrogen fixation, the ammonia produced in industrial nitrogen fixation is converted into a. nitric ammonia b. ammonium nitrate c. ammonium nitrous d. ammonia nitrous
|
||||
|
15) The change in air composition due to the addition of harmful chemical substances is classified as a. greenhouse balance b. air pollution c. chemical imbalance d. gases imbalances
|
||||
|
16) Rich algal growth leads to an increase in the number of a. fertilizer b. producer c. decomposer d. scavengers
|
||||
