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Did you know?
More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.
Did you know?
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
Did you know?
Women are 50% to 75% more likely than men to experience an adverse drug reaction.
Did you know?
Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
Did you know?
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
![Population predictions for 2000–2050, using three different total fertility rates (](https://biology-forums.com/gallery/47/medium_33_02_08_11_12_33_30_13922370.jpeg)
![In one-male group species, extra males typically reside in all-male “bachelor” groups. These are Han](https://biology-forums.com/gallery/47/medium_269691_26_01_15_5_55_26_204481514.jpeg)