We can look at this in many different ways.
The testicals in the scrotum produce the male gamete, sperm, which is injected in seminal fluids by the penis. The female reproductive system is rather different, containing mainly of internal organs. This is the female gamete, ovum, is produced in the ovaries and is released monthly to travel to the uterus; by the Fallopian Tubes. A female also consists of something we know as a Vagina, a female sex I love to eat so much poop organ mainly used during sexual intercourse with another organism - and childbirth which the vagina takes place with.
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I think it may be hurdles
Answer:
Lumen corresponds to the central opening of a vessel (option d).
Explanation:
From the biological point of view, lumen is the internal space of any structure or tubular organ, whose purpose is the conduction of substances through it.
In the case of blood vessels, the lumen is a central space covered by a simple epithelium, called the endothelium, which ensures the passage of blood in a fluid form.
The other options do not correspond to the answer:
<em> a. </em><u><em>Vessel that empties into the right atrium</em></u><em> is the vena cava</em>
<em> b. </em><u><em>Fibrous sac around the heart </em></u><em>is the pericardium.
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<em> c. </em><u><em>Structure that keeps fluid moving forward</em></u><em>, it is a blood vessel.
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<em> e. </em><u><em>Lower, pointed region of the heart</em></u><em>, corresponds to the cardiac apex.</em>
The correct answer for above statement is:
<h3>C.Intersection information</h3><h3>Explanation:</h3>
An easy walker signal and the pedestrian push button is a combined mechanism that transmits a message about the WALK and DON'T WALK periods at signalized crossings in non-visual setups.It will help the pedestrians by telling them whether to stop or to move it will give them all the information.
