The characteristic features of the mycoplasma are that

(1) they are much smaller than bacteria in size

(2) they can be grown on cell free medium

(3) they are highly pleomorphic and are bounded by a triple layered unit membrane

(4) all of the above

The kingdom protista does  not include

(1) photosynthetic organisms

(2) flagellate organisms

(3) parasitic organisms

(4) bacteria

A lichen that grows by branching is described as 

(1) fruticose

(2) crustose

(3) foliose

(4) dichotose

The fruiting bodies of Agaricus are also known as

(1) cleistothecium

(2) fairy rings

(3) basidiocarp

(4) ascocarp

Fungi imperfecti constitute a group that

(1) are obligatory parasites

(2) reproduce only asexually

(3) do not cause disease in humans

(4) resemble bacteria in some respects

Which is purely anaerobic?

(1) Algae

(2) Mosses

(3) Fungi

(4) None of these

Which of these contains 2 nucleus one for vegetative purpose and the other for reproduction?

(1) Euglena

(2) Paramecium

(3) Chlamydomonas

(4) Spirogyra

Viral envelope contains

(1) lipids

(2) proteins

(3) carbohydrates

(4) all of these

Which of the following is a DNA containing double shelled virus?

(1) Hepatitis A

(2) Hepatitis B

(3) Hepatitis C

(4) Hepatitis D

Azolla increases soil fertility of

(1) maize

(2) barley

(3) rice

(4) wheat