The most accepted theory of the origin of earth is the fiery origin which was propounded by
Laplace
Chamberlain
James Jean
Hoyle
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- The heart of the human embryo starts beating in the _____ week of its development.
- Which one of the following is caused by the expression of a recessive gene present on sex chromosome?
- Man is warm-blooded, frog is cold-blooded, Which one of the following is cold-blooded?
- The animal without urinary bladder is
- Excess of amino-acids are broken down to form urea in the
- What is 'atavism'?
- Which element in chillies causes burning sensations?
- Who considered evolution as due to mutation?
- The plant hormone which promotes ripening of fruits is
- What are top carnivores?
- Insects that make a clicking sound are
- Plant diseases are spread by
- Oxygen transport is a function of
- The buffer substance in blood is
- Maize is attacked by
- The aphotic zone means that light is
- The diseases that are caused by lack of vitamins are called
- Xerophthalmia is a deficiency disease. Deficiency of _________ causes it.
- Translocation of food takes place in plants through
- The olfactory area is concerned with
- Hormones are carried from their place of production by
- The artificial kidney is a
- Which among the following cows give maximum milk yields?
- The involuntary muscles are controlled by the
- Lecuminous plants are recommended for rotation of crops because they
- The rate of heartbeat is accelerated by the hormone
- Which of the following cell organelles play the most significant role in protein synthesis?
- In movable joints the tips of the bones are covered with
- Which among the following is a Cast growing tree?
- Blood is a kind of