61% of emerging diseases is caused by zoonotic pathogens
Explanation:
Out of total emerging diseases zoonotic contributes 61%, that are originated from wildlife. The rate is increasing due to growth of human population, its mobility, frivolous, cultural and their socioeconomic purposes. Air is the major source for spread of infectious diseases. Zoonoses are generally caused by bacteria, viruses and pathogens that are blowout between animals and human beings. Modern zoonoses are Ebola virus and salmonella. One of such direct zoonoses is rabies, that is transformed directly from animal to human.
Most chemical digestion takes place in the duodenum<span> by chemicals secreted by the </span>liver<span>, </span>pancreas<span> and </span>small intestine<span>.</span>
Explanation:
Pollination is the transfer of pollen grains from
an anther to a stigma . Pollen can be transferred
by an animal or by the wind. Fertilization takes
place inside the ovary when the nucleus
of pollen grains fuses with the nucleus of
an ovule to produce a zygote
The speed of an object is denoted by a distance time graph.
Explanation:
The speed of an object is calculated on the basis of distance travelled in per unit of time. The distance and time graph's gradient shows the speed of the object. Distance is referred to as measure of the path between two points. Displacement is the vector quantity that measures distance with a line that is straight in nature.
The velocity of the object is represented as the speed by which the object moves in a particular direction. The acceleration of the object can be measured by a velocity - time graph.