Do I exist? Well, when wrote "do I exist" one second ago I existed, but now I am different because millions of cells inside me just died, and millions more were born. If you are constantly changing then you aren't really the same person as you were last year. The only thing that is the same is your memory, You remember being someone else!

Enjoy your fraction of a second of life!

Which flexible structure that supports the nerve cord and led to the backbone

Researchers randomly divide participants into groups. each group takes a different amount of omega-3 fatty acid supplements daily for a month. one group receives a placebo. the researchers measure the impact on cholesterol levels in the blood. what is the purpose of random assignment in this experiment? a, to produce treatment groups with similar characteristics b, to ensure that all people with high cholesterol have an equal chance of being selected for the study c, to increase the accuracy of the research results and prevent skewness in the data

Apopulation of black bears depends on salmon from a stream for food. if a drought causes the stream to run dry one year, how will this likely impact the black bear population?