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NEET Biology MCQS Mock Test Paper 3
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1. Though Cycas has an embryo with two cotyledons, it is not grouped under dicotyledonous plants, as:
resembles a palm tree
has megasporophyll
ovules are naked
possesses compound leaves
2. In gymnosperms, the ovules typically are
bitegmic and anatropous
bitegmic and orthotropous
unitegmic and orthotropous
unitegmic and anatropous
3. Tallest known gymnosperm is
Pinus
Ginkgo
Sequoia
Ephedra
4. Inverted omega shaped organization of the vascular bundles is seen in
cycas root
cycas stem
cycas leaflet
ctclas rachis
5. Phanerograms without the ovaries are
angiosperms
pteridophytes
gymnosperms
all the above
6. An example of industrial melanism is
Mutation
Neo Darwinism
Neo Lamarckism
Natural selection
7. Most likely, people who perform tough manual work can develop
thick epidermis on their palms
thick subcutaneous fat in their palms
greater quantity of melanin all over the body
greater number of sweat pores in their hands
8. In Lamarck’s view, the key of organic evolution is that each progeny
shows struggle for existence
characters acquired by parental generation are inherited
is similar to its parents
phylogeny is repeated in its ontogeny
9. 72 generations of Drosophila were kept in darkness by a scientist. Despite that, the first flies possessed eyes that were normal. This disapproves the theory of
Acquired characters
Synthetic theory
Natural selection
use and disuse
10. This is a most popular example of Lamarck
Primrose
Snakes
African Giraffe
Both (b) and (c)
11. The idea of use and disuse of organs was given by
Lamarck
Morgan
Darwin
Hugo de Vries
12. Acquired characteristics of Lamarck are not inherited and have an evolutionary value. Who gave this statement?
Weismann
Hugo de Vries
TH Morgan
Charles Darwin
13. Who stated this theory – organ in use will develop and if not used will weaken to turn vestigial
Mendel
De Vries
Darwin
Lamarck
14. Scientists regarded as Neo Lamarckists are
Correns, Hugo de Vries and Tschermak
August Weismann and T.H Morgan
Hardy Weinberg
Kammerer and Mc Dougall
15. Germplasm theory against Lamarck’s principle was put forward by
Darwin
Lamarck
Weismann
Hugo de Vries
16. Green manure plants are
Poaceae
Solanaceae
Leguminosae
Compositae
17. This chemical fertilizer is essential for better rhizobial nitrogen fixation
calcium
potassium
sodium
phosphorus
18. Azolla is used as a biofertilizer as it possesses
humus in large quantities
rhizobium
mycorrhiza
cyanobacteria
19. Pyrethrin is obtained from
Chrysanthemum cinerariifolium
Azadirachta indica
Urtica dioica
Tagetes erecta
20. This is not included in organic farming
crop rotation
chemical fertilizer
green manures
compost and farmyard manures
21. Appropriate use of cow dung is made in
medicine
fuel
manure
building/construction material
22. In children, this disease is caused due to excess nitrate fertilizers usage
mumps
jaundice
septicemia
methaemoglobinaemia
23. For paddy, the best fertilizer is
Bacillus polymyxa
Bacillus megaterium
Azolla pinnata
Rhizobium meliloti
24. Composited manure is formed from
farm and household refuse
animal refuse and rotted vegetable
organic wastes from where biogas extraction takes place
green and farmyard manure
25. A green manure is
Maize
Rice
Sorghum
Sesbania
26. These are features of higher energy level and shorter wavelengths
infrared radiation
alpha radiation
beta radiation
ultraviolet radiation
27. Normal greenhouse effect is essential for sustenance of life on Earth as it has raised the surface temperature of earth by
15 ℃
33 ℃
–18 ℃
50 ℃
28. Wavelength of infrared radiations is
shorter
longer
infinite
zero
29. Greenhouse gases present in very high quantity is
ethane
carbon dioxide
propane
methane
30. Gas molecules absorbing thermal infrared radiation and present in large quantity to change the climate system is known as
ozone gases
beta radiations
alpha radiations
greenhouse gases
31. Burning of fossil fuels
increased oxygen level
increases greenhouse gases
decreases greenhouse gases
increased ethane level
32. This is the most potent greenhouse gas in terms of efficiency
N2O
CFC
C2O
CH4
33. This statement is false about greenhouse effect
life on earth is possible due to greenhouse effect
greenhouse effect is a natural process that maintains earth’s temperature
increased emission of greenhouse gases is a natural process
increased emission of greenhouse gases in the atmosphere increases earth’s temperature
34. The one which is not considered as naturally occurring greenhouse gas is
ethane
methane
carbon dioxide
nitrous oxide
35. Relative contribution of various greenhouse gases to total global warming will not be
CFCs – 14%
N2O – 12%
Carbon dioxide – 60%
Methane – 20%
36. This process is functional in removing carbon dioxide from the atmosphere
lightning
deforestation
burning of fossil fuels
photosynthesis
37. Mainly, Ozonosphere is depleted by
CFCs
excess CO2
ozone
excess CO
38. This is not a possible adverse effect of global warming
sea level rise
an increase of UVB radiation
retreat of glaciers
extraordinary weather patterns
39. Correct descending order of relative contribution of various greenhouse gases to total global warming is
carbon dioxide; methane; CFCs; nitrous oxide
carbon dioxide; methane; nitrous oxide; CFCs
carbon dioxide; CFCs; nitrous oxide; methane
carbon dioxide; CFCs; methane; nitrous oxide
40. CFC have a continuing effect on ozone layer as
they are efficiently absorbed by atmospheric water vapours
they are being produced in increasing amounts all over the world
Cl atoms formed by them are used up in reactions causing degradation of ozone
Cl atoms formed by them only act as catalysts in reactions causing degradation of ozone
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