The term is called azoospermia. This condition
can be treated depeding on its origin. It is commonly caused by infections in
the male reproductive regions or sexually-transmitted diseases. If azoospermia
is caused by genetics, only few to zero treatments are available.
The largest natural population of organisms that can interbreed to produce fertile offspring are species.
Answer:
The correct answer is option d.
Explanation:
At the time of the electron transport chain, the transferring of electrons takes place from the level of higher energy to the level of lower energy at each of the steps that result in the discharging of energy. This energy discharged is utilized to pump the proton found in the matrix into the intermembrane space across the inner mitochondrial membrane.
This process of proton pumping from the mitochondrial matrix to the intermembrane space results in a proton gradient, which is, utilized in the generation of ATP.
Light travels extremely fast through the air, 300,000,000 m/s. Sound travels much slower, 343 m/s through air. Therefore we can see light in an instant, but it takes a while to hear thunder.
Explanation:
When you compare the numbers (speed of light vs speed of sound) you understand that light is 10^6 faster in speed that sound. When lightning occurs at a greater distance from the observer, this difference in speeds in more perceptible because the two different waves would have to travel greater distances to the observer and the relative differences in speed become increased.
Remember however, that sound travels in a medium while light waves do not require a medium because they are electromagnetic waves. In a vacuum, therefore, you would observe the lightning but never the sound.
Learn More:
For more on light and sound waves check out;
brainly.com/question/13402259
brainly.com/question/12779911
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In nature organisms mate without human interference.this is called selective breeding. hope this helps!