The annual net primary productivity of whole biosphere is approximately
A. 55 billion tons
B. 115 billion tons
C. 150 billion tons
D. 170 billion tons

Paleontological evidences of evolution refer to the
A. Development of embryo
B. Homologous organs
C. Fossils
D. Analogous organs

Which prehistoric man started to use hides to protect their body and buried their dead bodies?
A. Neanderthal man
B. Homo sapiens man
C. Homohabilis man
D. Homo erectus man

Brain capacity of Homo habilis is
A. 1400cc
B. 1000cc
C. 650-800cc
D. 900cc

The production of antibodies in response to the antigens is by
A. B-lymphocytes
B. T-lymphocytes
C. Monocytes
D. Phagocytes

Widal test is conducted for detection of
A. Cancer
B. Pneumonia
C. Malaria
D. Typhoid

Opiods are obtained from :
A. Erythroxylum coca
B. Papaver somniferum
C. Cannabis sativa
D. Datura

The substance which causes a definite change in genes is called
A. Toxin
B. Alkaloid
C. Cytotoxin
D. Mutagen

The disease chikungunya is transmitted by
A. Housefly
B. Aedes mosquitoes
C. Cockroach
D. Female Anopheles

Which of the following is a pair of viral diseases
A. Ringworm, AIDS
B. Amoebic dysentery, Common cold
C. Common cold, AIDS
D. Typhoid, Pneumonia

Which of the following is the
only sexually transmitted disease
A. Pneumonia
B. Haemophilia
C. Malaria
D. Gonorrhea

The type of antibody produced during an allergic response:
A. IgA
B. IgE
C. IgG
D. IgM

The disease caused by a protozoan parasite is
A. Ascariasis
B. Filariasis
C. Amoebiasis
D. Ringworms

Number of spermatozoa produced from a single Primary spermatocyte in spermatogenesis is
A. One
B. Two
C. Three
D. Four

Corpus luteum produces
A. Estrogen
B. Testosterone
C. Progesterone
D. None

Spermiation is the process of the release of sperm from
A. Seminiferous tubules
B. Vas deferens
C. Epididymis
D. Prostate gland

Which one of the following is not male accessory gland?
A. Seminal vesicle
B. Prostate
C. Bulbourethral gland
D. Epididymis

The layer of uterine wall that contracts during parturition:
A. Endometrium
B. Myometrium
C. Perimetrium
D. Epimetrium

Sperms are produced in
A. Vas deferens
B. Prostate gland
C. Interstitial cells
D. Seminiferous tubules

In which part of human female reproductive system fertilization take place
A. Ovary
B. Uterus
C. Ampullary isthmus region
D. Cervix

Human chorionic gonadotropin is produced by
A. Ovary
B. Follicle
C. Placenta
D. Liver

Embryo’s heart s developed during
A. Fourth trimester
B. Third trimester
C. Second trimester
D. First trimester

The wider part of the oviduct is called
A. Ampulla
B. Isthmus
C. Fimbriae
D. Infundibulum

Which of the following hormone helps in Parturition.
A. Progesterone
B. estrogen
C. thyroxine
D. Oxytocin

The bacteria present in the rumen of the cattle and it helps in break down of cellulose
A. Methano bacterium
B. Cyano bacter
C. Azato bacter
D. Rhizobium bacteria

Biofertilisers are organisms that enrich the nutrient quality of the soil. Main source of biofertilizers is
A. Methanabacterium
B. Bacillus thuringiensis
C. Azotobactor
D. Aspergillus niger

Large holes in Swiss cheese are formed due to production of a large amount of co2 by
A. Propionobacterium sharmonii
B. Mycobacterium
C. Saccharormyces
D. Penicillium

A typical example for mycorrhiza forming fungus is :
A. Penicillium
B. Glomus
C. Aspergillus
D. Trichoderma

Aspergillus niger belongs to
A. Bacteria
B. Fungi
C. Viruses
D. Algae

A bacterium that is used in the industrial production of acetic acid
A. Aspergillus niger
B. Clostridium butylicum
C. Acetobacter aceti
D. Lactobacillus