Question

please answer these​

Answer 1

1st Answer

Option (a) Two is correct.

$\leadsto$ Linnaeus proposed two kingdom system of classification with Plantae and Animalia.

2nd Answer

Option (d) all of the above is correct.

$\leadsto$ The criteria used by R. H. Whittaker for the five kingdom classification were cell structure, thallus organisation, mode of nutrition, reproduction and phylogenetic relationships.

3rd Answer

Option (c) four kingdom is correct.

$\leadsto$ In Whittaker's five kingdom system of classification, eukaryotes are distributed among four kingdoms those are protista, plantae, animalia and fungi.

4th Answer

Option (c) They cannot survive without oxygen is correct.

$\leadsto$ Mycoplasma can survive without oxygen (Obligate anaerobes).

5th Answer

Option (d) both (a) and (b) is correct.

$\leadsto$ Cholera and typhoid are animal bacterial diseases and citrus canker and crown gall are plant disease.

6th Answer

Option (c) Bacilli Spirilla vibrio Cocci is correct.

$\leadsto$ Bacteria are grouped under four categories based on their shape the sperical cocci, the rod shaped bacilli, the comma shaped vibrio and the spiral shaped spirilla

7th Answer

Option (a) Statement(i) and (ii) are correct is correct.

$\leadsto$ Methanogens are included in the group Archaebacteria and They are responsible for the production of blogas in gobar gas plants.

8th Answer

Option (c) Nitrogen fixation and Retention of moisture is correct.

$\leadsto$ Cyanobacteria filament are covered by gelatinous sheath to retain moisture.

9th Answer

Option (c) Cells possess well-developed membrane-bound cell organelles is correct.

$\leadsto$ The bacterial cell is a prokaryotic cell they lacks membrane-bound cell organelles.