Malarial parasite is brought to human host by
male anopheles mosquito
female anopheles mosquito
male culex
female culex
Correct Answer :
B. female anopheles mosquito
Related Questions
Memory is the responsibility of
cerebrum
cerebellum
medulla oblongata
spinal cord
Lecuminous plants are recommended for rotation of crops because they
kill harmful insects
require little amount of water
help in Nitrogen fixation
are cash crops
Darwinism does not explain
progression
retrogression
usefulness of all organs
presence of vestigial organs
Herbivores are
primary consumers
secondary consumers
tertiary consumers
decomposers
The cell theory of Schleiden and Schwann states that
cells reproduce by mitosis or meiosis
all cells have nuclei
cells are basic units of plants and animals
cells arise only from pre-existing cells
The larva of the housefly is called
maggot
caterpillar
grub
wriggler
The normal systolic blood pressure is
140
120
180
80
The blood of cockroach shows the following characteristics except one. Mark it.
It serves to distribute nutrient directly to every part of the body
It contains several kinds of corpuscles without haemoglobin
It collects metabolic wastes
It carries oxygen
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
Who discovered the electron microscope?
Knoll and Ruska
Rudolf and Kolliker
Robert Hooke
CP Swanson
Which one of the following was probably absent in the atmosphere at the time of origin of life?
Ammonia
Oxygen
Hydrogen
Carbon
The most primitive mammals are
carnivorous
herbivorous
omnivorous
insectivorous
The theory that believes that the first living organism came from another planet is known as
Catastrophism
Special creation
Organic evolution
Cosmozoic theory
The life cycle of Malarial Parasite consists of two phases in man. Where do they occur?
In RBC and liver cells
In WBC and RBC
In lymph
In gall bladder and pancreas
Aphids are
insect pests
fungal pests
bacterial pests
viral pests
In a gamete there will be
one pair of sex chromosomes
only one sex chromosome
no sex chromosome
only autosomes
The suggestion that the chromosomes are the carriers of hereditary material was first made by
Johanson
Flemming
Sutton and Boveri
Morgan
The dinosaurs (terrible lizards) became very successful during
Palaeozoic era
Mesozoic era
Cenozoic era
Archaeozoic era
The bacteria that gets into our body is consumed by
RBC
Blood platelets
Plasma
Phagocytes
What is the colour of the outer portion of the spinal cord?
gray
brown
white
yellow
Bird nu is a disease which affects and spreads through
Cattle
Sheep
Prawn
Poultry
The dreaded virus which, on reaching the central nervous system, produces spasms of the muscles of the throat and the cheat while swallowing, and is sure to kill the patient is
Poliomyelitis virus
AIDS virus
Smallpox virus
Rabies virus
From the end of the Triassic to the cretaceous period the earth was ruled by
eurypterids
cotylosaurs
dinosaurs
mammals
Under the immunisation programme's Govt. of India is providing vaccination to prevent some vaccine-preventable diseases. Which of the following is NOT one of them?
Tuberculosis
Diphtheria
Tetanus
Plague
A few infections like sore throat, whooping cough and tuberculosis are carried through the respiratory system. Which among the following is caused by bacteria while passing through the respiratory tract?
diphtheria
dysentery
jaundice
typhoid
During dehydration, the human body is usually lost by the human body is
sugar
sodium chloride
potassium chloride
iodine
In phototropism, auxins
Promote growth of cells
Inhibit cell division
Inhibit growth of cells
Stimulate differential growth of cells
The diseases that are caused by lack of vitamins are called
deficiency diseases
communicable diseases
epidemics
tropical diseases
In plants water is carried upwards by
phloem
paranchyma
xylem
meristem
What are oncogenes?
a dominant gene
a set of genes which produce cancer
a gene present in the X-chromosomes causing haemophilia
a recessive gene