Classification of Plant Kingdom

31.What causes the disease ‘foot and mouth’ in animals?
 
A. bacteria
 
B. fungus
 
C. protozoa
 
D. Virus
 
Option”D” is correct
32.The causative agent of mosaic disease in potato is –
 
A. Virus
 
B. bacteria
 
C. mildew
 
D. Algae
 
Option”A” is correct
33.The branch of botany in which algae are studied is called –
 
A. taxonomy
 
B. mycology
 
C. microbiology
 
D. Phycology
 
Option”D” is correct
34.What is the cell wall of algae made of?
 
A. chitin
 
B. Suverine
 
C. cellulose
 
D. cutin
 
Option”C” is correct
35.Which symbiotic algae is found in the secretory cells of hydra?
 
A. euchlorella
 
B. nostoc
 
C. ulothrix
 
D. spirogyra
 
Option”A” is correct
36.The Sargasso sea got its name from –
 
A. caused by fungi
 
B. due to angiosperms
 
C. due to algae
 
D. due to bryophyta
 
Option”C” is correct
37.Dizziness can be prevented and treated by eating some kelp as it is rich in –
 
A. Sulphur
 
B. iodine
 
C. calcium
 
D. phosphorus
 
Option”B” is correct
38.From which algae is iodine obtained?
 
A. ectocarpus
 
B. Laminaria
 
C. odogonium
 
D. ulothrix
 
Option”B” is correct
39.Kelp is obtained from-
 
A. from seaweed
 
B. from lichens
 
C. from algae
 
D. from algae
 
Option”A” is correct
40.Which of the following is autotrophic?
 
A. butterfly
 
B. Algae
 
C. mushroom
 
D. grasshopper
 
Option”B” is correct

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