Those small organisms which float on the surface of water are called
Necton
pH indicators
Plankton
Benthos
Correct Answer :
C. Plankton
Related Questions
The workers in the honey bee colony are
males
females
sterile females
intersex
The thrombocytes are associated with
blood coagulation
transport of respiratory gases
removal of nitrogenous wastes
All the above
Milk fever in cows occurs due to lack of
Phosphates
Calcium
Iron
Iodine
Legumes are highly nutritious because they are rich in
starch
oils
fat
protein
Malnutrition is due to
undernourishment
want of balanced diet
overfeeding
All the above
Dinosaur is a/an
Fish
Amphibian
Reptile
Bird
The enzyme that is necessary to bring about clotting of blood is
peptidase
amylase
lipase
thrombokinase
Organisms that depend only on raw plant products are said to be
herbivorous
vegetarian
carnivorous
omnivorous
The insect vector for the disease Leishmaniasis is
Tsetse fly
Culex
Phlebotomus
Anopheles
The theory that all animals and plants are made up of cells and they could arise only from pre-existing cells was propounded by
Robert Hooke
Matthias Schleiden and Theodore Schwann
Purkinije
Leuwenhoek
Insulin is produced in the human body by the
Heart
Kidney
Liver
Pancreas
The grouping of blood is based on substances called
antibodies
antigens
antitoxin
enzymes
Turner's syndrome is a disease caused by
bacteria
virus
fungus
chromosomal imbalance
Small pox is caused by
bacteria
fungus
virus
algae
The ultimate substances to which the carbohydrates are degraded are
amino acid
glycerol
glucose
maltose
The normal temperature of human body on the Kelvin scale is
280
290
300
310
In one minute normally the heart beats
60 times
80 times
100 times
72 times
Which one of the following genetical disease is sex-linked?
Royal haemophilia
Tay-Sachs disease
Cystic fibrosis
Hypertension
Blood of cockroach is
red
bluish
greenish
colourless
Hormones are carried from their place of production by
ducts
blood
lymph
muscus
Heart is made up of
nonstriated muscle
cardiac muscle
connective tissue
nervous tissue
Vitamin D is known as anti-rachitic vitamin because it cures the deficiency disease called
Rickets
Beriberi
Xerophthalmia
Sterility
The two minerals required to keep teeth and bones intact and in good condition are
lead and zinc
calcium and phosphorus
copper and sulphur
iron and iodine
The insects do not have blood pigments because
there is no blood
blood does not have a respiratory function
tissues have pigments
pigments are elsewhere
Whale reproduces by
ovipary
vivipary
ovovivipary
fission
Fledgling is a term often used to denote the young one of a
bird
fox
dog
man
The theory that believes that the first living organism came from another planet is known as
Catastrophism
Special creation
Organic evolution
Cosmozoic theory
Darwinism does not explain
progression
retrogression
usefulness of all organs
presence of vestigial organs
The radicle of the seeding always grows
towards the gravity
away from gravity
neutral to gravity
towards light
Warm-bloodedness
means, animals living in warm climates
means, the warming up of blood as the temperature increases during day time
is characterised by constant body temperature
is shown by reptiles