Answer:
(A) greater than standing crop of fish
Explanation:
Biomass -
It is the mass of the living organisms in a particular area of the ecosystem at a particular time . It even includes the animals , plants and microorganisms .
It is the total mass of the community or the average mass per unit area .
The biomass of the phytoplankton are always more than the biomass of the fish .
Hence the correct statement would be (A) greater than standing crop of fish .
The best answer is C.
Mercator projection is a type of map projection invented and introduced by Gerardus Mercator in the year 1569. The meridians are equally spaced, parallel vertical lines and the parallels of latitude are parallel horizontal lines spaced farther apart as their distance from the equator increases.
This projection is widely used for navigation charts because any straight line on a Mercator- projection map is a line of constant true bearing that enables a navigator to plot a straight-line course.
It is often described as a cylindrical projection but it must be derived mathematically.
A catheters serves as a common source of nosocomial infection because they provide a direct route for pathogens to enter the human body.
<h3>What is a catheter?</h3>
In medical line, these are device that are used for patient for passing out of excretion while on sick bed.
Hence, through the catheters, the nosocomial infection that is a form of infectious diseases acquired in a health-care facility are easily transmitted,
Therefore, the Option D is correct.
Read more about catheter
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