Net ball.
net ball: a ball that on the service (as in tennis and volleyball) strikes the top of the net and lands in the service court but must be served over.
Answer:
Tobacco can affect the excretory system by causes colorectal cancer.
Explanation:
The exact cause of colorectal cancer is not clear, but certain risk factors, including diet, cigarette, smoking and heavy alcohol consumption and using tobacco are strongly linked to the disease.
Individuals with other genetic cancer syndromes or a family history of colorectal cancer may have a high chance of developing the disease.
Population explosion would lead to widespread hunger and starvation across the globe.
<h3>What is population education?</h3>
Population education has to do with the enlightenment of people about the need to control the population of the world so that it does not exceed its carrying capacity.
We know that in recent years, the population of the world has greatly increased owing mostly to improved health care and illiteracy in third world countries.
If this trend is not checked, the world could get into such a crisis in which it can no longer sustain its rapidly increasing population. This would lead to widespread hunger and starvation across the globe.
This trend can be stemmed by laying emphasis on population education. Thus, it is true that in absence of population education, the world population would skyrocket.
Learn more about population growth:brainly.com/question/18415071
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Missing parts;
In absence of population education the world population would skyrocket.justify this statement considering the need and importance of population education.
Local anesthetics inhibit nerve conduction in a reversible manner without altering the nerve. The inhibition appears rapidly and for a longer or shorter duration depending on the products and the concentrations used. The extent of the territory rendered insensitive to pain depends on the modes of administration of the local anesthetic, either at the level of the nerve endings, or at the level of a nervous trunk, for example.
They act at the level of the neuronal membrane by interfering with the process of excitation and conduction. The anesthetic crosses the axon membrane, rich in lipids, in the form of base before taking up a cationic form on the internal face of the neuron where the pH is more acidic.
At this level, there is a blockage of nerve conduction by decreasing the membrane permeability to sodium ions that occurs during the depolarization phase. As the progression of the anesthetic action along the nerve increases, the threshold of excitability increases and the conduction time increases. This is completely blocked from a certain concentration of local anesthetic.
The nerve fibers are unequally sensitive to the action of local anesthetics: they disappear in order: the painful, thermal, tactile sensations.
Hey, there hope this helps
Explanation: Both types of hurdle stretches loosen up the hamstring in the same way. But the hurdle stretch with the leg pointed back puts sideways torque on the back knee and can result in serious injury. So while the potential benefit of the exercises are the same, one risks serious injury to the knee.
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