A gene pair hides the effect of another. The phenomenon is
A)
Epistasis
done
clear
B)
dominance
done
clear
C)
Mutation
done
clear
D)
none of these
done
clear
View Answer play_arrow
Pesticides kill
A)
Only plant pest
done
clear
B)
Harmful insects
done
clear
C)
Only specific insects
done
clear
D)
Both harmful and useful insects
done
clear
View Answer play_arrow
Nowadays, cornea transplantation is very popular. The reason for the same is that it
A)
is easy to preserve
done
clear
B)
Can be easily obtained
done
clear
C)
Is transplants very easily
done
clear
D)
Does not link blood supply and immune system
done
clear
View Answer play_arrow
ELISA test is done for the detection of
A)
HIV
done
clear
B)
AIDS
done
clear
C)
SCID
done
clear
D)
RGCB
done
clear
View Answer play_arrow
Which of the following disease spreads by Aedesaegypti?
A)
Plague
done
clear
B)
typhoid
done
clear
C)
Dengue
done
clear
D)
malaria
done
clear
View Answer play_arrow
In malarial parasite, which of the following is released in blood to cause chills fever?
A)
hematin
done
clear
B)
haemozoin
done
clear
C)
hematocrin
done
clear
D)
Schuffner's dot
done
clear
View Answer play_arrow
Conjunctivitis or pink eye is caused by
A)
Bacteria
done
clear
B)
viruses
done
clear
C)
Protozoa
done
clear
D)
eye worms
done
clear
View Answer play_arrow
Chemically, hormones are
A)
Proteins
done
clear
B)
steroids
done
clear
C)
Biogenic amines
done
clear
D)
all of these
done
clear
View Answer play_arrow
Microscopic blood vessels in the liver are called
A)
ductules
done
clear
B)
sinusoids
done
clear
C)
venules
done
clear
D)
arterioles
done
clear
View Answer play_arrow
Which one of the following statements is correct about the Internet meme?
A)
It is a bait and switch in which a hyperlink claims it's relevant to the topic at hand but the link actually takes the user to another site.
done
clear
B)
It is computer software in internet to link and extract the personal information from the Internet users.
done
clear
C)
It is computer software which is automatically stored in the personal computer when the system is connected with internet.
done
clear
D)
Both [b] and [c]
done
clear
View Answer play_arrow
Which kind of soil is suitable for cultivation of rice crop?
A)
Red
done
clear
B)
black
done
clear
C)
Loam
done
clear
D)
gravel
done
clear
View Answer play_arrow
What is the 'CPU scavenging' used in the Grid- computing system?
A)
The creation of a grid by establishing the cloud by cracking the used memory resources of the participants
done
clear
B)
The creation of a grid by hacking the unused CPU memory of the participant unit resource
done
clear
C)
The creation of a grid from the used memory resources in a network of participants
done
clear
D)
The creation of a grid from the unused resources in a network of participants
done
clear
View Answer play_arrow
Kupffer's cells are found in
A)
Lungs
done
clear
B)
liver
done
clear
C)
Brain
done
clear
D)
kidney
done
clear
View Answer play_arrow
Which one of the following is the correct matching of a vitamin, its nature and its deficiency disease?
A)
vitamin-A - fat-soluble - beri-beri
done
clear
B)
vitamin-K - fat-soluble - beri-beri
done
clear
C)
vitamin-K - water-soluble - pellagra
done
clear
D)
vitamin- A - fat-soluble - night blindness
done
clear
View Answer play_arrow
A person is wearing spectacles with concave lenses for correcting vision. While not using the glasses, the image of a distant object in his case is formed
A)
On the blind spot
done
clear
B)
behind the retina
done
clear
C)
On the yellow spot
done
clear
D)
in front of the retina
done
clear
View Answer play_arrow
What is 'Flushing' in the modern information technology and computer era?
A)
Criminal practice of using Volp to gain access to provide personal and financial information from the public for the purpose of financial reward
done
clear
B)
Criminal practice of using Volp to gain access to highly secured sites to morph the public sites.
done
clear
C)
Modern practice of accessing the data and files stored in a system without the knowledge of the owner to delete the important data or files
done
clear
D)
Modem methods of spread to computer worm in the form of cookies through the World Wide Web
done
clear
View Answer play_arrow
Ascorbic acid is also known as
A)
vitamin-B
done
clear
B)
vitamin-D
done
clear
C)
vitamin-C
done
clear
D)
vitamin-E
done
clear
View Answer play_arrow
Improper handling and storage of cereal grains and oilseeds result in the production of toxins known as aflatoxins which are not generally destroyed by normal cooking process. Aflatoxins are produced by
A)
Bacteria
done
clear
B)
protozoa
done
clear
C)
molds
done
clear
D)
viruses
done
clear
View Answer play_arrow
The hormone that stimulates the stomach to secrete gastric juice is
A)
Gastrin
done
clear
B)
rennin
done
clear
C)
enterokinase
done
clear
D)
enterogastrone
done
clear
View Answer play_arrow
Which of the following acts as anti-infective vitamin?
A)
vitamin-A
done
clear
B)
vitamin-B
done
clear
C)
vitamin-C
done
clear
D)
vitamin-D
done
clear
View Answer play_arrow
A person use his/her expertise to gain access to other people's computer to get information illegally or do damage is called as
A)
Spammer
done
clear
B)
Programmer
done
clear
C)
Hacker
done
clear
D)
Instant messenger
done
clear
View Answer play_arrow
The mineral, which is abundant in sea water, is
A)
Iron
done
clear
B)
iodine
done
clear
C)
Calcium
done
clear
D)
phosphorus
done
clear
View Answer play_arrow
Which among the following is a salivary gland?
A)
Lacrimal
done
clear
B)
adrenal
done
clear
C)
brunner
done
clear
D)
sublingual
done
clear
View Answer play_arrow
Which of the following hormones is a steroid?
A)
thyroxine
done
clear
B)
progesterone
done
clear
C)
Epinephrine
done
clear
D)
prostaglandin
done
clear
View Answer play_arrow
The gastrointestinal hormones namely Secretin and Cholecystokinin secreted by duodenal epithelium activate respectively which organs to discharge their secretions?
A)
Pancreas and Gall Bladder
done
clear
B)
Gall bladder and stomach
done
clear
C)
Pancreas and stomach
done
clear
D)
Stomach and small intestine
done
clear
View Answer play_arrow
The level of glucose in the blood, is controlled by
A)
Liver
done
clear
B)
ileum
done
clear
C)
Duodenum
done
clear
D)
gall bladder
done
clear
View Answer play_arrow
What is the function of villi?
A)
Secretion
done
clear
B)
absorption
done
clear
C)
Assimilation
done
clear
D)
egestion
done
clear
View Answer play_arrow
The release of pancreatic juice from the pancreas in a mammal, is stimulated by
A)
Secretin
done
clear
B)
trypsinogen
done
clear
C)
enterokinase
done
clear
D)
cholecystokinin
done
clear
View Answer play_arrow
Consider the following statements 1. Computer worm uses a computer network to send copies of itself to other nodes without any user intervention. 2. Like a virus, it needs to attach itself to an existing program. Which of the statement(s) given above is/are correct?
A)
Only 1
done
clear
B)
Only 2
done
clear
C)
Both 1 and 2
done
clear
D)
neither 1 nor 2
done
clear
View Answer play_arrow
Which of the following carries glucose from digestive tract to liver?
A)
Hepatic artery
done
clear
B)
pulmonary vein
done
clear
C)
Hepatic portal vein
done
clear
D)
renal portal system
done
clear
View Answer play_arrow
In human beings, which hormone functions as a stimulant for milk production?
A)
Prolactin
done
clear
B)
contisol
done
clear
C)
esterogen
done
clear
D)
progesterone
done
clear
View Answer play_arrow
Who coined the term antibiotics?
A)
Darwin
done
clear
B)
Woodruff
done
clear
C)
Flemming
done
clear
D)
Selman Waksman
done
clear
View Answer play_arrow
Indian systems of medicine includes (i) Ayurveda (ii) Yoga (iii) Unani (iv) Siddha
Codes:
A)
i, ii, iii
done
clear
B)
i, iii, iv
done
clear
C)
i, ii, iii, iv
done
clear
D)
ii, iii, iv
done
clear
View Answer play_arrow
The most important source of calcium and phosphorus is
A)
Meat
done
clear
B)
egg
done
clear
C)
Cheese
done
clear
D)
milk
done
clear
View Answer play_arrow
Which of the following is/are transplanted in human being?
A)
Heart, liver and skin
done
clear
B)
Kidney, heart and liver
done
clear
C)
Kidney, liver and bone marrow
done
clear
D)
all of these
done
clear
View Answer play_arrow
DNA fingerprinting refers to
A)
Molecular analysis of profiles of DNA samples
done
clear
B)
Analysis of UNA samples using imprinting devices
done
clear
C)
Techniques used for identification of fingerprints of individuals
done
clear
D)
Techniques used for molecular analysis of different specimens of DNA
done
clear
View Answer play_arrow
Which of the following mineral is essential for oxygen transport as part of haemoglobin as well as myoglobin and oxidation reduction as part of cytochrome?
A)
Iron
done
clear
B)
iodine
done
clear
C)
Sodium
done
clear
D)
potassium
done
clear
View Answer play_arrow
What do you mean by Biocompatibility? 1. It is related to the behaviour of biomaterials in various contexts. 2. The term refers to the ability of a material to perform with an appropriate host response in a specific situation. 3. It is actually a self sufficiency of an organism to ensure its ability to withstand the adverse effect during grafting of a particular organ which is present in every animal. 4. Biocompatibility is the capability of a prosthesis implanted in the body to exist in harmony with tissue without causing deleterious changes. Select the correct answer using the codes given below
A)
1, 2 and 3
done
clear
B)
2, 3 and 4
done
clear
C)
2 and 4
done
clear
D)
1, 2 and 4
done
clear
View Answer play_arrow
Which of the following mineral is essential for the formation of the bones and teeth, clotting of blood, growth and excitability of the nerves?
A)
Calcium
done
clear
B)
sodium
done
clear
C)
Magnesium
done
clear
D)
potassium
done
clear
View Answer play_arrow
Which of the following is the principal cation in the plasma of the blood?
A)
Potassium
done
clear
B)
sodium
done
clear
C)
Calcium
done
clear
D)
magnesium
done
clear
View Answer play_arrow
Which of the following enzyme is secreted by yeast for fermentation?
A)
enolase
done
clear
B)
zymase
done
clear
C)
invertase
done
clear
D)
dehydrogenase
done
clear
View Answer play_arrow
What is the Li-Fi?
A)
It is a high definition digital Broadcasting of television signals
done
clear
B)
It is a cheap and fast optical version of Wi-Fi
done
clear
C)
It is the fast Wi-Fi in which the software allows internet access without modem
done
clear
D)
None of the above
done
clear
View Answer play_arrow
Which of the following vitamins we should consume daily?
A)
Fat soluble
done
clear
B)
water soluble
done
clear
C)
Ether soluble
done
clear
D)
alcohol soluble
done
clear
View Answer play_arrow
Which of the following can fix atmospheric nitrogen?
A)
a) Albugo
done
clear
B)
Custopns
done
clear
C)
Saprolegnia
done
clear
D)
Anabaena
done
clear
View Answer play_arrow
Vitamin-D is syntfiesised in skin, by the action of sunlight on
A)
Cholesterol
done
clear
B)
matate hydroxylase
done
clear
C)
cephano-cholesterol
done
clear
D)
7-hydroxy cholesterol
done
clear
View Answer play_arrow
Brown spots on tooth surfaces are due to excess of which among the following minerals
A)
Chlorine
done
clear
B)
Bromine
done
clear
C)
Iodine
done
clear
D)
Fluorine
done
clear
View Answer play_arrow
The disease filaria is transmitted by
A)
tse-tse fly
done
clear
B)
sand fly
done
clear
C)
Anopheles
done
clear
D)
Culex
done
clear
View Answer play_arrow
When \[C{{O}_{2}}\] concentration in blood increases, the breathing becomes
A)
Slower and deeper
done
clear
B)
faster and deeper
done
clear
C)
Slower and shallower
done
clear
D)
faster and shallower
done
clear
View Answer play_arrow
The first transgenic crop was
A)
Pea
done
clear
B)
flax
done
clear
C)
Tobacco
done
clear
D)
cotton
done
clear
View Answer play_arrow
Consider the following instruments 1. Electronic stethoscopes 2. Anti-lock braking system 3. GPS receivers 4. Microwave ovens Which of the instruments given above have 'Embedded Computer System'?
A)
1, 2, 3 and 4
done
clear
B)
1, 2 and 3
done
clear
C)
1, 2 and 4
done
clear
D)
1, 3 and 4
done
clear
View Answer play_arrow
The treatment of snake-bite by antivenine is an example of
A)
Specific natural immunity
done
clear
B)
Artificially acquired active immunity
done
clear
C)
Naturally acquired passive immunity
done
clear
D)
Artificially acquired passive immunity
done
clear
View Answer play_arrow
Which of the following is an important oil yielding plant?
A)
Cicerarieiinum
done
clear
B)
Lens esculenium
done
clear
C)
Eleusinecoracana
done
clear
D)
Carthamustinctorius
done
clear
View Answer play_arrow
What is the Window System of GUI?
A)
A component which provides basic support for graphics hardware and pointing devices
done
clear
B)
A component which provides basic support for USP and operating system
done
clear
C)
A component which provides basic support for debugger and clean-up the Disk-C
done
clear
D)
All the statements given above are correct about the Windowing system
done
clear
View Answer play_arrow
Continued consumption of a diet rich in butter, red meat and eggs for a long period may lead to
A)
vitamin-A toxicity
done
clear
B)
Kidney stones
done
clear
C)
Hypercholesterolemia
done
clear
D)
Urine laden with ketone bodies
done
clear
View Answer play_arrow
Which of the following pesticide is most persistent in the soil
A)
BHC
done
clear
B)
pyrethroid
done
clear
C)
malathion
done
clear
D)
pyrethrum
done
clear
View Answer play_arrow
During digestion, sodium bicarbonate is formed by
A)
Gastric Juice
done
clear
B)
Pancreatic Juice
done
clear
C)
Intestinal Juice
done
clear
D)
All of these
done
clear
View Answer play_arrow
Ovulation in females is under the control of
A)
LH
done
clear
B)
ADH and LH
done
clear
C)
FSH and LH
done
clear
D)
LTH and TSH
done
clear
View Answer play_arrow
Consider the following statements 1. Joystick is found application in the Unmanned Aerial Vehicles (UAVs) and submersible Remotely Operated Vehicles (ROVs). 2. Joysticks are used in many industrial and manufacturing applications such as cranes, assembly lines, mining trucks, and excavators. Which of the statements given above is/are correct?
A)
Only 1
done
clear
B)
Only 2
done
clear
C)
Both 1 and 2
done
clear
D)
neither 1 nor 2
done
clear
View Answer play_arrow
If a person is suffering from Christmas disease, then he is deficient of
A)
Factor IX
done
clear
B)
thrombin
done
clear
C)
vitamin-C
done
clear
D)
homogentics acid
done
clear
View Answer play_arrow
Which part of body secretes the hormone secretin?
A)
Ileum
done
clear
B)
stomach
done
clear
C)
Duodenum
done
clear
D)
oesophagus
done
clear
View Answer play_arrow
Fungicide is obtained from which of the following plant?
A)
amla
done
clear
B)
Azadirachta
done
clear
C)
Sunflower
done
clear
D)
root Asparagus
done
clear
View Answer play_arrow
The first organ transplant was of
A)
Heart
done
clear
B)
kidney
done
clear
C)
Cornea
done
clear
D)
bone marrow
done
clear
View Answer play_arrow
Consider the following statements about the ITER project: 1. ITER is an international research and engineering project which is currently building the world largest and most advanced experimental tokamak nuclear fusion reactor. 2. This Fusion reactor is being constructed in Europe, at Cadarache in the south of France. Construction of the facility began in 2008 and first plasma is expected in 2018. 3. The ITER tokamak aims to make the long awaited transition from today's studies of plasma physics to full scale electricity-producing fusion power plants. 4. The project's members are the European Union, Japan, China, the United States, South Korea, India and Russia. Which of the above statements is/are correct?
A)
1, 2 and 3
done
clear
B)
1, 3 and 4
done
clear
C)
2, 3 and 4
done
clear
D)
1, 2, 3 and 4
done
clear
View Answer play_arrow
Which of the following enzymes help in milk digestion?
A)
Rennin
done
clear
B)
invertase
done
clear
C)
Amylase
done
clear
D)
maltase
done
clear
View Answer play_arrow
Which of the following is serum hepatitis?
A)
HTV
done
clear
B)
HAV
done
clear
C)
HBV
done
clear
D)
HAHBV
done
clear
View Answer play_arrow
Cultivation of trees in a dwarf plant is known as
A)
Bonsai
done
clear
B)
ikebona
done
clear
C)
Apomixes
done
clear
D)
arboriculture
done
clear
View Answer play_arrow
Which of the following is a gastro-intestinal hormone?
A)
Secretin
done
clear
B)
prolactin
done
clear
C)
enterokinase
done
clear
D)
cholinestrase
done
clear
View Answer play_arrow
Hydrophobia is caused in which among the following diseases?
A)
Smallpox
done
clear
B)
Rabies
done
clear
C)
Chickenpox
done
clear
D)
Chickenguniya
done
clear
View Answer play_arrow
Curdling of milk in small intestine, occurs due to the action of
A)
Rennin
done
clear
B)
trypsin
done
clear
C)
eryptine
done
clear
D)
chymotrypsin
done
clear
View Answer play_arrow
Cattle fed with spoilt hay of sweet clover which contains dicumarol
A)
Catch infections easily
done
clear
B)
Are healthier due to a good diet
done
clear
C)
May suffer vitamin-K deficiency and prolonged bleeding
done
clear
D)
May suffer from beriberi due to deficiency of vitamin-B
done
clear
View Answer play_arrow
Which of the following vitamins is pronounced by the name of riboflabine?
A)
Vitamin\[{{B}_{1}}\]
done
clear
B)
Vitamin\[{{B}_{2}}\]
done
clear
C)
Vitamin\[{{B}_{6}}\]
done
clear
D)
Vitamin\[{{B}_{12}}\]
done
clear
View Answer play_arrow
Aphasia motor is associated with which of the following the disease?
A)
Liver
done
clear
B)
kidneys
done
clear
C)
Spinal cord
done
clear
D)
broca's area of brain
done
clear
View Answer play_arrow
The contraction of gall bladder is due to
A)
Gastrin
done
clear
B)
secretin
done
clear
C)
enterogastrone
done
clear
D)
cholecystokinin
done
clear
View Answer play_arrow
One of the digestive juices, that lacks enzymes but helps in the digestion, is
A)
Bile
done
clear
B)
chyle
done
clear
C)
Chime
done
clear
D)
succusentericus
done
clear
View Answer play_arrow
To get ample supply of carbohydrates, one should eat
A)
rice
done
clear
B)
meat
done
clear
C)
Grams
done
clear
D)
carrots
done
clear
View Answer play_arrow
Why is the 'Caps Lock' key referred to as a toggle key?
A)
Because it cannot be used for entering numbers
done
clear
B)
Because it cannot be used to delete
done
clear
C)
Because it cannot be used to insert
done
clear
D)
Because its function goes back and forth every time it is pressed
done
clear
View Answer play_arrow
Which of the following is a better source of carbohydrate?
A)
Egg
done
clear
B)
rice
done
clear
C)
Banana
done
clear
D)
bread
done
clear
View Answer play_arrow
The study of blood group is
A)
Of no importance
done
clear
B)
Of great clinical significance
done
clear
C)
Of minor clinical importance
done
clear
D)
Important for an unhealthy person
done
clear
View Answer play_arrow
Which of the following are water soluble vitamins?
A)
B and C
done
clear
B)
A, D and K
done
clear
C)
A, D, E and K
done
clear
D)
K, B, A and E
done
clear
View Answer play_arrow
Which one of the following processing core is commonly used in the embedded computer to perform the specific functions?
A)
Digital signal processor
done
clear
B)
Analogue signal processor
done
clear
C)
Parallel signal processor
done
clear
D)
Perpendicular signal processor
done
clear
View Answer play_arrow
The first kidney transplant was done in
A)
1905
done
clear
B)
1954
done
clear
C)
1967
done
clear
D)
1979
done
clear
View Answer play_arrow
Milk, egg and meat are good sources of
A)
Fats
done
clear
B)
proteins
done
clear
C)
Vitamins
done
clear
D)
carbohydrates
done
clear
View Answer play_arrow
The toxic substances in the diet are detoxified in human body by
A)
Kidney
done
clear
B)
lungs
done
clear
C)
Stomach
done
clear
D)
liver
done
clear
View Answer play_arrow
Stomach is the site of digestion mainly for
A)
Fats
done
clear
B)
proteins
done
clear
C)
Carbohydrates
done
clear
D)
all of these
done
clear
View Answer play_arrow
AIDS was first reported in
A)
Russia
done
clear
B)
Germany
done
clear
C)
USA
done
clear
D)
France
done
clear
View Answer play_arrow
Consider the following statements about foot and mouth disease (FMD): 1. Mongolian gazelles are the reservoir of FMD. 2. FMD is a fungal disease which infect human and cause skin rashes in mouth and foot. 3. FMD is a highly contagious viral disease. 4. FMD threatens wildlife and livestock in Asia and not Mongolian livestock. Which of the following statements is/are incorrect?
A)
1 and 2
done
clear
B)
1, 2 and 3
done
clear
C)
1, 3 and 4
done
clear
D)
1, 2, 3 and 4
done
clear
View Answer play_arrow
Typhoid fever is caused by
A)
Giardia
done
clear
B)
Salmonella
done
clear
C)
Shigella
done
clear
D)
Escherichia
done
clear
View Answer play_arrow
Proteins are mainly required in the body for
A)
Growth
done
clear
B)
repair of tissues
done
clear
C)
Respiration
done
clear
D)
both '1' and '2'
done
clear
View Answer play_arrow
Simple sugar of the blood is
A)
Sucrose
done
clear
B)
maltose
done
clear
C)
Lactose
done
clear
D)
glucose
done
clear
View Answer play_arrow
Old age farsigntedness is a defect of eye in which.
A)
Lens becomes opaque
done
clear
B)
Eye ball becomes long
done
clear
C)
Eyeball becomes small
done
clear
D)
Lens lose its elasticity
done
clear
View Answer play_arrow
Read the following statements carefully about India's largest industrial solar thermal plant: I. India's largest industrial solar plant, with a capacity for evaporation and condensation of one lakh litres of waste water per day, became operational in Punjab's Ludhiana district. II. The Punjab government has set a target to generate 1000 MW electricity from non-conventional energy sources. Which of the statement(s) given above is/are correct?
A)
Only I
done
clear
B)
Only II
done
clear
C)
Both I and II
done
clear
D)
neither I nor II
done
clear
View Answer play_arrow
Which of the following is an oil seed crop?
A)
Rose
done
clear
B)
marigold
done
clear
C)
soyabean
done
clear
D)
sunflower
done
clear
View Answer play_arrow
A four-chambered heart is not found in
A)
Birds
done
clear
B)
snake
done
clear
C)
Mammals
done
clear
D)
crocodile
done
clear
View Answer play_arrow
Which of the following substance is at its lowest level in fish food?
A)
Actin
done
clear
B)
myosin
done
clear
C)
Cholesterol
done
clear
D)
tissue fluid
done
clear
View Answer play_arrow
Which of the following oil is used in tooth paste?
A)
Clove oil
done
clear
B)
castor oil
done
clear
C)
Coconut oil
done
clear
D)
groundnut oil
done
clear
View Answer play_arrow
Consider the following statements 1. PASCAL is a procedural - programming computer language. 2. PASCAL is based on the C - programming language. Which of the statements given above is/are correct?
A)
Only 1
done
clear
B)
Only 2
done
clear
C)
Both 1 and 2
done
clear
D)
neither 1 nor 2
done
clear
View Answer play_arrow
Sandal wood oil is obtained from
A)
Santalum album
done
clear
B)
Azadirachtaindica
done
clear
C)
Ricinuscommunis
done
clear
D)
Brassica compestris
done
clear
View Answer play_arrow
Which of the following mineral is essential for the preventation of dental caries?
A)
Iron
done
clear
B)
copper
done
clear
C)
Fluorine
done
clear
D)
all of these
done
clear
View Answer play_arrow
Consider the following statements 1. Javascript is the language used in the Web browsing. 2. The first high-level programming language to be designed for a computer was Plankalkul. Which of the statements given above is/are correct?
A)
Only 1
done
clear
B)
Only 2
done
clear
C)
Both 1 and 2
done
clear
D)
neither 1 nor 2
done
clear
View Answer play_arrow
Which of the following plays an important role in phosphate nutrition of plants?
A)
VAM
done
clear
B)
legumes
done
clear
C)
Cyanobacteria
done
clear
D)
none of these
done
clear
View Answer play_arrow