Identify the possible link A in the following food chain
Green plant Insect Frog A Eagle
rabbit
wolf
cobra
cobra
Given below is an imaginary pyramid of numbers. What could be one of the possibilities about certain organisms at some of the different levels?
Level PC is insects and level SC is small insectivorous birds
Level PP is phytoplanktons in sea and Whale on top level TC
Level on PP is pipal trees and the level SC is sheep
Level on PP is pipal trees and the level SC is sheep
Monascus purpureus is a yeast used commercially in the production of
ethanol
streptokinase for removing clots from the blood vessels
citric acid
citric acid
A normal-visioned man whose father was colour-blind, marries a woman whose father was also colour-blind. They have their first child as a daughter. What are the chances that this child would be colour-blind?
100%
0%
25%
25%
Signals for parturition originate from
both placenta as well as fully developed foetus
oxytocin released from maternal pituitary
placenta only
placenta only
B.
oxytocin released from maternal pituitary
The process of delivery of the foetus (childbirth) is called parturition which is induced by a complex neuroendocrine mechanism. The signals for parturition originate from the fully developed foetus and the placenta which induce mild uterine contractions called foetal ejection reflex.
This triggers release of oxytocin from maternal pituitary. Oxytocin causes stronger uterine contractions which in turn stimulate further secretion of oxytocin. The stimulatory reflex between the uterine contraction and oxytocin secretion continues resulting in stronger and stronger contractions. This leads to expulsion of the baby out of the uterus through the birth canal i.e., parturition.
A patient brought to a hospital with myocardial infarction is normally immediately given
penicillin
streptokinase
cyclosporin - A
cyclosporin - A
Which one of the following is not a property of cancerous cells, whereas the remaining three are?
They compete with normal cells for vital nutrients.
They do not remain confined in the area of formation
They divide in an uncontrolled manner
They divide in an uncontrolled manner
Which one of the following is not a functional unit of an ecosystem?
Energy flow
Decomposition
Productivity
Productivity
In a normal pregnant woman, the amount of total gonadotropin activity was assessed. The result expected was
High level of circulating FSH and LH in the uterus to stimulate implantation of the embryo
High level of circulating HCG to stimulate endometrial thickening
High levels of FSH and LH in uterus to stimulate endometrial thickening
High levels of FSH and LH in uterus to stimulate endometrial thickening