N2 content is kept constant in the biosphere due to
N2 content is kept constant in the biosphere due to
Plants receive their nutrients mainly from
Plants receive their nutrients mainly from
Radical vascular bundles are those in which
Radical vascular bundles are those in which
Of the following taxonomic categories which is the most inclusive (i.e. is the highest in hierarchy)?
Of the following taxonomic categories which is the most inclusive (i.e. is the highest in hierarchy)?
Plants wilt due to excess of
Plants wilt due to excess of
Pyorrhoea is a disease of the
Pyorrhoea is a disease of the
Pine, fir, spruce, cedar, larch and cypress are the famous timber-yielding plants of which several also occur widely in the hilly regions of India. All these belong to
Pine, fir, spruce, cedar, larch and cypress are the famous timber-yielding plants of which several also occur widely in the hilly regions of India. All these belong to
Pigmentation of skin is due to
Pigmentation of skin is due to
Most fish do not sink in water because of the presence of
- swim bladder
- air bladder
- air sacs
- air in spongy bones
Most fish do not sink in water because of the presence of
- swim bladder
- air bladder
- air sacs
- air in spongy bones
Oxyreductases, transferases, hydrolases, lyases, isomerases and ligases are all classes of
Oxyreductases, transferases, hydrolases, lyases, isomerases and ligases are all classes of
Ramapithecus and Cro-Magnon man are considered
Ramapithecus and Cro-Magnon man are considered
Plant bends towards the source of light on account of the movement of curvature known as
Plant bends towards the source of light on account of the movement of curvature known as
Plants that grow under average temperature and moisture are called:
Plants that grow under average temperature and moisture are called:
Prothrombin which helps in clotting of blood is released by
Prothrombin which helps in clotting of blood is released by
Plants absorb dissolved nitrates from soil and convert them into
Plants absorb dissolved nitrates from soil and convert them into
Osmosis is the flow of solution from higher concentration to a solution of lower concentration through a semi permeable membrane. What is incorrect in this statement?
Osmosis is the flow of solution from higher concentration to a solution of lower concentration through a semi permeable membrane. What is incorrect in this statement?
Rain water helps to increase the ____ to some extent.
Rain water helps to increase the ____ to some extent.
One day you wake with a sore throat and a runny nose. Your doctor takes a swab from your throat, sends it to a lab, and telephones you the next day to say that antibiotic will not help you get better. Which of the following is the most likely reason for the doctor's statement?
One day you wake with a sore throat and a runny nose. Your doctor takes a swab from your throat, sends it to a lab, and telephones you the next day to say that antibiotic will not help you get better. Which of the following is the most likely reason for the doctor's statement?
O2 released in the process of photosynthesis comes from
O2 released in the process of photosynthesis comes from
Pollen grains in plants are produced in
Pollen grains in plants are produced in
Movement of cell against concentration gradient is called
Movement of cell against concentration gradient is called
Plants hormone that induces cell division is
Plants hormone that induces cell division is
Radioactivity is a phenomenon of the spontaneous emission of
Radioactivity is a phenomenon of the spontaneous emission of
On which of the following plants did Gregor Mendal perform his classical experiment?
On which of the following plants did Gregor Mendal perform his classical experiment?
Plants growing on sand are called as
Plants growing on sand are called as
Phloem is a tissue found in
Phloem is a tissue found in
Most abundant tissues of our body are
Most abundant tissues of our body are
Which one of the following is not an insect:
Which one of the following is not an insect:
Plants developing in dry conditions are
Plants developing in dry conditions are
out of proteins, lipids and carbohydrates present in a cell membrane, what is true?
out of proteins, lipids and carbohydrates present in a cell membrane, what is true?
Plant development is influenced by
Plant development is influenced by
Ptyalin is an enzyme produced in the
Ptyalin is an enzyme produced in the
Outer covering of virus made up of protein is
Outer covering of virus made up of protein is
Photosynthesis is a process
Photosynthesis is a process
Poison glands of snakes are homologous to
Poison glands of snakes are homologous to
Our skin, when exposed to excess sunlight, becomes dark. This is because our skin pigments called
Our skin, when exposed to excess sunlight, becomes dark. This is because our skin pigments called
Potato is a modified form (outgrowth) of:
Potato is a modified form (outgrowth) of:
Nitrogen is fixed in ecosystems in ways stated below. Which one of the statements below is false?
Nitrogen is fixed in ecosystems in ways stated below. Which one of the statements below is false?
Mumps is a disease caused by
Mumps is a disease caused by
Most of the red, blue and purple colours of plants are due to a pigment called
Most of the red, blue and purple colours of plants are due to a pigment called
One of the following is most suitable for study of mutations
One of the following is most suitable for study of mutations
Normal adult human male has
Normal adult human male has
Plant have ____ while animals lack it.
Plant have ____ while animals lack it.
Most highly intelligent mammals are
Most highly intelligent mammals are
Mycobacterium leprae causes leprosy, Corynebacterium diphtheria causes diphtheria and Vibrio comma causes
Mycobacterium leprae causes leprosy, Corynebacterium diphtheria causes diphtheria and Vibrio comma causes
Our major foods, fibres, spices, fruits and beverage crops are
Our major foods, fibres, spices, fruits and beverage crops are
Pollination by wind is called
Pollination by wind is called
Myopia is connected with
Myopia is connected with
Ozone hole refers to
Ozone hole refers to
Nymph is the name of young one of
Nymph is the name of young one of
Ordinary table salt is sodium chloride. What is baking soda?
Ordinary table salt is sodium chloride. What is baking soda?
Night blindness is cause by lack of which vitamin?
Night blindness is cause by lack of which vitamin?
Organic Substances which, in very small amounts, control growth and development called
Organic Substances which, in very small amounts, control growth and development called
Reflex actions are controlled by :
Reflex actions are controlled by :
Biotic component of the environment does not include-
Biotic component of the environment does not include-
Pollination is best defined as
Pollination is best defined as
Most common disease of poultry in India is
Most common disease of poultry in India is
Pulses are a good source of
Pulses are a good source of
Out of 900 reported species of living gymnosperms, conifers are represented by about 500 species, About 2,50,000 species of angiosperms (flowering plants) have also been reported in the world. The vast and dominant woodlands in Europe, Asia, North America and mountains such as Himalayas are wooded with
Out of 900 reported species of living gymnosperms, conifers are represented by about 500 species, About 2,50,000 species of angiosperms (flowering plants) have also been reported in the world. The vast and dominant woodlands in Europe, Asia, North America and mountains such as Himalayas are wooded with
Number of chromosomes in Down's syndrome is
Number of chromosomes in Down's syndrome is
Plants synthesis protein from
Plants synthesis protein from
Photosynthesis takes place faster in
Photosynthesis takes place faster in
Plants that grow in saline water are called
Plants that grow in saline water are called
Plants absorb most part of water needed by them through their
Plants absorb most part of water needed by them through their
Placenta is the structure formed
Placenta is the structure formed
Neurospora is used as genetic material because
Neurospora is used as genetic material because
Norepinephrine increases
Norepinephrine increases
Process of cell division can take place by
Process of cell division can take place by
Movements due to light are shown by
Movements due to light are shown by
Photo-oxidation is
Photo-oxidation is
Nucleus, the genetic material containing rounded body in each cell, was first discovered in 1831 by
Nucleus, the genetic material containing rounded body in each cell, was first discovered in 1831 by
Monocot root differs from dicot root in having
Monocot root differs from dicot root in having
Primary phloem develops from
Primary phloem develops from
Other than spreading malaria, anopheles mosquitoes are also vectors of
Other than spreading malaria, anopheles mosquitoes are also vectors of
Plants are killed in winter by frost
Plants are killed in winter by frost
Monotremes are unique mammals because they
Monotremes are unique mammals because they
Oxygen in our blood is transported by a protein named
Oxygen in our blood is transported by a protein named
Prokaryotic cells lack
Prokaryotic cells lack
Photosynthesis generally takes place in which parts of the plant?
Photosynthesis generally takes place in which parts of the plant?
One of the following is not a function of bones.
One of the following is not a function of bones.
