|
|
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.
Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.
Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
![A genetic bottleneck reduces a population temporarily to very low levels, removing much of its genet](https://biology-forums.com/gallery/47/medium_234464_20_01_15_11_04_39_202621312.jpeg)
![The research methods that sociologists choose depend partially on the questions they want to answer. ...](https://biology-forums.com/gallery/47/medium_632960_15_11_16_11_30_04_241091163.png)