B. False that's incorrect
I am thinking that the answer is 40
Rumen biotechnology improves feed for ruminant animals by boosting the bioavailability of carbohydrates and protein in plants. It can be used to improve the nutritive value of ruminant feedstuffs.
Rumen biotechnology refers to the use and management of the techniques of forestomach fermentation in order to improve the efficiency of ruminant production.
Rumen biotechnology can be used to improve the amount as well as the availability of macronutrients (i.e., carbohydrates and proteins) in plants.
However, this technology (rumen biotechnology) exhibits several limitations mainly associated with the identification of bacterial strains used during inoculation, proteins (recombinant enzymes) and genomic stability of the genetic constructs.
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I'm pretty sure it's B, I may be wrong let me know if I am.
Answer:
The first heart sound (S1) represents closure of the atrioventricular (mitral and tricuspid) valves as the ventricular pressures exceed atrial pressures at the beginning of systole (point a). S1 is normally a single sound because mitral and tricuspid valve closure occurs almost simultaneously.
Explanation: