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General Science ➤ Biology ➤ 1
Question 6
Q6.  Foramen Magnum is an aperture found in the
 

Answer :  Skull


The Foramen magnum ("great hole") is a large opening in the occipital bone of the cranium. It is one of the circular apertures in the base of the skull (the foramina), through which the spinal cord (an extension of the medulla oblongata) enters and exits the skull vault.
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Question 7
Q7.  Name the branch of Zoology that deals with the scientific study of animal behaviour.
 

Answer :  Ethology


Ethology is the scientific and objective study of animal behaviour, usually with a focus on behaviour under natural conditions.
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Question 8
Q8.  'Barr Body' is found in
 

Answer :  Female Somatic cells


A Barr Body is the inactive X chromosome in a female somatic cell in those species in which sex is determined by the presence of the Y or W chromosome rather than the diploidy of the X or Z. A typical human female has only one Barr Body per somatic cell, while a typical human male has none.
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Question 9
Q9.  Araneology is
 

Answer :  Study of spiders


Araneology is the study of spiders. It is that department of entomology which relates to spiders.
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Question 10
Q10.  What does "Corpus lucteum" secrete ?
 

Answer :  Progesterone


The corpus luteum is a temporary endocrine structure in female mammals that is involved in the production of relatively high levels of progesterone and moderate levels of estradiol and inhibin A. A new corpus luteum develops with each menstrual cycle.
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