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Biology

Number of chromosomes in E.coli

Study of the effects of toxic chemical substance on animal and plant is

The release of Which among the given into ponds & wells helps in controlling mosquitoes -

Which among the given bacterium causes crown gall disease in plants -

Which of the following one of the following is not a mosquito borne disease

BCG vaccine is used against

Number of eyes found in Earthworm

Study of typical behaviour of organisms in their natural habitat is called

The resources which are obtained from bio sphere & have life are:

Which among the given blood cells is compulsory for blood coagulation

Which of the following one of the following is not a plant product

BCG vaccine is used to produce immunity against

How do most insects respire?

Number of mitochondria in bacterial cell is

Synapse gap is present between which of the following?

The retention of urea in the blood in the marine environment, as a means to osmoregulate, is best seen in

Which among the given can cause cancer as well as cure it, depending upon its intensity and use?

Which of the following one of the following is not a rabi crop -

Beak is formed by

How many bones are there in a newly born infant -

Nutrients are recycled in the atmosphere with the help of certain micro-organisms referred to as

Syrinx is the voice box in

The RH factor refers to

Which among the given causes Malaria -

Which of the following one of the following is not the excretory organ

Beriberi is caused by a deficiency of ?

Nymph is the name of young one of

Teeth is mainly made up of

The richest source of vitamin A is

Which among the given cells secrete insulin -

Which of the following one of the following is the infective stage of the Malarial Parasite

Besides carbohydrates, a major source of energy in our food is constituted by

How many bones are there in the human body -

O2 released in the process of photosynthesis comes from

Test tube baby means

The right portion of human heart receives which type of blood?

Which among the given characteristics of blood best explains its classification as a connective tissue?

Which of the following one of the following is the respiratory pigment in man

Besides ear ossicles, the cavity of the middle ear in humans contains

How many canine teeth does an adult human have?

Tetanus is caused by

The RNA molecules from a single strand of ribonucleotides of

Which among the given creatures has no blood but respires?

Which of the following one of the following is the smallest endocrine gland in human body

Bile is produced by the

How many chambers does a human heart have?

Obsity of person is due to excess of

Thalassemia is a hereditary disease. It affects

The sailva secreted in the mouth digests

Which among the given cytoplasmic organelles are treated as prokaryotic cells within the eukaryotic cells