An example of photoautotrophic bacteria is ___________

(a)

Nitrosomonas

(b)

Nitrobacter

(c)

Chlorobium

(d)

Spirillum

Growth in non-living objects is _______ .

(a)

Intrinsic

(b)

Extrinsic

(c)

Spiral

(d)

Linear

Which one of the following is used in manufacture of alcohol?

(a)

Bacteria

(b)

Yeast

(c)

Virus

(d)

Slime mould

The sourness of curd is due to _________ .

(a)

acetic acid

(b)

galactic acid

(c)

lactic acid

(d)

lactone

Among Brown algae,____is a fresh water form.

(a)

Fucus

(b)

Pleurocladia

(c)

Dictyota

(d)

Ulva

Fucus and Laminaria are rich in_______

(a)

Calcium

(b)

Vitamin

(c)

Nitrogen

(d)

Iodine

Who coined the term biodiversity?

(a)

Walter Rosen

(b)

AG Tansley

(c)

Aristotle

(d)

AP de Candole

Which of the following are the sense organs of Cockroach?

(a)

Antennae, compound eyes, maxillary palps, anal cerci

(b)

Antennae, compound eye, maxillary palps and tegmina

(c)

Antennae, ommatidia, maxillary palps, sternumv and anal style

(d)

Antennae, eyes, maxillary palps, and tarsus of walking legs and coxa

Which of the following cranial nerve controls the movement of eye ball ?

(a)

Trochlear nerve

(b)

Optic nerve

(c)

Olfactory nerve

(d)

Vagus nerve

Which chlorophyll molecule does not have a phytol tail?

(a)

Chl - a

(b)

Chl - b

(c)

Chl - c

(d)

Chl - d