In hot summer and cold winter,the number of malaria cases as well as Anopheles declines,Reappearance of malaria in humid warm conditions is due to
Blood pressure will be at its highest when
DNA synthesis occurs during
Hydra recognizes its prey by:
The stem cells that give rise to all red blood cells, white blood cells, and platelets are known as:
Epiglottis is meant for protecting
During protein catabolism, _____ is produced as an end product by the liver.
Which term does not belong with the others?
Commercial cork is obtained from
Which of the following is an oil seed crop?
One of the following is a man-made cereal
Which of the following oil is used in toothaches?
One of the major foreign exchange earning crops of India is
The number of cattle breeds in India is
Annual plants lacking perennating buds belong to
Influence of soil on plant behaviour is known as
Which one is nature's cleaner?
Cholecystokinin and enterocrinin are secreted by
Cholecystokinin and duocrinin are secreted by intestine. It stimulates pancreas to release enzymes in pancreatic juice and stimulates gall bladder to release bile. Duocrinin causes release of viscous mucus from Brunner's glands into intestinal juice.
Hypophysectomy results in
Which one is not produced in Escherichia coli present in lactose medium?
Cycas revoluta is
Differentiation of pure tall plant of pea from heterozygous tall plant can be done by
The amino acid substituted in sickle-cell anaemia is :
Who is concerned with law of inheritance?
The parental technique which is used to determine the genetic disorders in a foetus, is called
Caffeine, amphetamine and cocaine are
Ductus reuniens connects
The size of pupil is controlled by the
Light enters the eye through the pupil, and the iris regulates the amount of light by controlling the size of the pupil.
Ruminants belong to order
What is one major force that causes interstitial fluid to enter lymphatic capillaries?
Insects excrete nitrogen as
The pharyngeal tonsils are found in the:
Adenoids (or pharyngeal tonsils, or nasopharyngeal tonsils) are a mass of lymphoid tissue situated at the very back of the nose, in the roof of the nasopharynx, where the nose blends into the mouth
Minerals absorbed by roots move to the leaf through
Sea hare is:
Which is the most effective way to conserve the plant diversity of an area?
The biosphere reserve is an in situ conservation method. hence, it is the most effective way among the four above for preserving genetic diversity by protecting wild population, traditional lifestyle and domesticated plant genetic resource.
Which of the following is least effective in photosynthesis
Photosynthesis takes place faster in
Linnaeus system of plant classification is
Plant hormone causing abscission of leaves, senscence, bud dormancy and inhibition of cell division is
In which one of the following pathogens do the cells of promycelium after the germination of teleutospore produce infection hyphae instead of basidiospores?
Which one of the following substances plays an important role in biochemical defence of host plants?
The main aspect of biotechnology is to
Effect of pollution is marked first in
70-90 dB sound is
An identifying feature of all the members of porifera is that they are all
The shortest gestation period is seen in
Male gametophyte of angiosperms/monocots is
Microspore or pollen grain is an immature male gametophyte and thus, represents the first cell of gametophytic generation in angiosperms. Microspores are generally rounded, small, uninucles haploid cells produced as a result of meiosis in microspore mother cell inside the microsporangia. The process of formation of microspore inside the pollen sacs of anthers is known as microsporogensis.
Xenia and metaxenia terms are related with
Which one requires oxygen
Oxidation of pyruvate to CO₂ and H₂O occurs through
The cilia lining the trachea function to
Where does gas exchange take place in the lungs?
Largest bud is of
A respiratory pigment is absent in
Croaking of Frog is
Who is credited with the introduction of binomial system of nomenclature of plants-
The loss of water through suticle reaches upto
The hormone aldosterone is involved in the regulation of
Filtrate enters the Bowman’s capsule by