BT101 Midterm Current MCQs Spring 2023 by Muhammad Zaman

1. All organisms need energy to function.
2. First evolutionary scheme was proposed by jean Baptiste
3. . One species gain benefit other species is harmed in parasitisam.
4. species that occur outside of their natural ranges because of human activity

Exotic Species .

5. Rise in mean temperature of 0.6-1.0°C in arid coastal areas, arid mountains

and hyper arid plains Pakistan .

6. Nitrogen fixing microbes requires enzyme nitrogenase
7. Near the surface of earth ozone concentration about _0.04-
8. 15 ppm
9. The resemblance of one species to another for protective or aggressive

purposes is Mimicry

9. The second major layer of Earth’s atmosphere is (
10. Regions with identical climate have different floras and faunas ( Buffon’s Law).
11. Organic Compounds that contain Carbon atoms.
12. The atmospheric concentration of CO2 measured from Antarctic ice core data implies that Earth’s climate has being pretty stable over the past 400,000 years.
13. Form of precipitation that is unusually acidic. Acid rain
14. Secondary Treatment

is a Biological process.

16. Natural selection prefers large population.
17. Only change in DNA are transferred to next generations.
18. Winter Sleep

Occurs in large animals for large energy reserves.

19. In preedation one animal kills and eats another animal one is predator and other is prey.
20. Intraspecific competition

between members of same species for same resources.

21. Conventional aviation takes place in troposphere.
22. Decomposers absorb nutrients directly through chemical and biological processes without ingestion.
23. Productivity is the

rate at which the organisms in the trophic level collectively synthesize new organic matter.

24. Rate of reproduction of common Carp is 300,000 / years.
25. Land pollution indirectly affects the respiratory system of human beings.
26. Average Height of troposphere is 13 km .

Q27. Which specie can survive beyond the carrying capacity

1. r- selected species
2. K- selected species
3. N- selected species
4. none.

1. Adult human body contains --- 60% -- of water by weight.
2. - community --- is a group of population occupying same space in a particular time.
3. First evolutionary scheme was proposed by jean Baptiste
4. 541 million years ago, O2 made stable - 15%-of atmosphere.
5. ----is Removal of a forest or stand of trees from land which is then converted to a non-forest use. - Deforestation-
6. The second major layer of Earth’s atmosphere is -(
7. Rise in mean temperature of 0.6-1.0°C in arid coastal areas, arid mountains and hyper arid plains - Pakistan -