BT101 Final Term MCQs Spring 2023 by Muhammad Zaman

1. The external factors, which control the ecosystem, are __Independent of internal factors.
2. Fungi is Primary decomposer.
3. Winter Sleep occurs in large animals to Energy … reserves.
4. Y-axis is a logarithmic plot of numbers of survivors X-axis is a
5. The final community is the Climax community.
6. Camouflage use of any combination of materials coloration or
7. 541 million years ago, O2 made 15% stable of atmosphere.
8. The total average height of troposphere is _13Km_ .
9. Adult human body contain _60% __ of water.
10. Cascade Effect Removal of Apex predator …in environment.
11. Reptiles are strongly affected by light pollution.
12. Bio magnification is process of increasing concentration of toxic substance.
13. First evolutionary scheme was proposed by jean Baptiste Lamarck in 1809 .
14. Extinct hippopotamus like Taxodon .
15. Adaptation are characteristics that increase the potential of an organism or species to successfully reproduce in a specified
16. Natural selection ---- Removes ---------- variations from a
17. Which of the following protein is present in the cellular respiration pathways in all eukaryotic organisms. Cytochrome C.
18. Short protein appendages smaller than flagella is called Pilli
19. Genomic DNA sequence of an Archaean and --- Bacterium- -- were first compared in 1996.
20. Toxoplasmosis caused by toxoplasma virulent in immune
21. Natural selection is the most powerful of the principal agents of
22. Term ribosomes was coined by Palade (1955) .
23. Natural selection works by favoring individuals traits over
24. Rise in mean temperature of 0.6-1.0°C in arid coastal areas, arid mountains and hyper arid plains recently in Pakistan
25. Unique execratory system of nematoda comprised of two or more renette cell.
26. Skeleton of Poriferan consist of microscopic needlelike spikes

called spicules

27. Lizard belongs to order squamata.
28. Cyanobacteria have Symbiotic relationship with leguminous plants roots.
29. Related animals have similar DNA derived from their common ancestor.
30. Sweat glands in mammals are called Sudoriferous glands.
31. In echinoderms Ammonia is the primary nitrogenous waste product.
32. Porins allow molecules to freely diffuse from one side of the membrane to the other.
33. Deforestation Directly affects rate of transpiration
34. Disruption Variety of causes, independently or in concert, are responsible for extinctions
35. Animal that changes it's color rapidly . Chameleon
36. The resemblance of one species to another for protective or aggressive purposes is mimicry
37. Exotic Species are species that occur outside of their natural ranges because of human activity.

in 1809

A species is a mosaic of different molecules and structures that have evolved at different rates One species gain benefit other species is harmed in parasitism. 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.