genetics, evolution of life & ecological biodiversity - Category wise Question and Answer Practice Test with Solutions

Question : 11

Which of the following is not a pteridophyte?

a) Polypodium

b) Ginkgo

c) Selaginella

d) Azolla

Question : 12

Which bacteria is utilized in gober gas plant?

a) Ammonifying bacteria

b) Methanogens

c) Nitrifying bacteria

d) Denitrifying bacteria

Question : 13 [BPSC (Pre) 1995]

According to recent proof, the life on earth emerged approximately

a) Before 20,00,000 years

b) Before 20,000 years

c) Before 2,00,000 years

d) Before 2,000,000,000 years

Question : 14 [NDA]

To which of the following types of animals are Salamanders closely related?

a) Prawns and Crabs

b) Dolphins and Whales

c) Frogs and Toads

d) Seals and Walruses

Question : 15

Vestigial organs are those present in the living beings without functions gives and mark the correct option for vestigeal organs in humans

a) nicitating membrane in eyes

b) Vermifrom appendix

c) mammary glands of male

d) all of the above