Photosynthesis starts when a photon- a tiny packet of light is absorbing a molecule of chlorophyll.
Answer:
gene pool or gene frequency
Explanation:
Biological Evolution has to do with how a population's gene pool changes over time.
Answer:
I think its c Scientists cannot determine how it changes.
d). It increases over time.
Current estimations are that one in five Americans will develop skin cancer in their lifetime. It is estimated that approximately 9,500 people in the U.S. are diagnosed with skin cancer every day. Which adds up to over 3.3 million persons each year.
Hope this helps! :)
Answer:
He
Explanation:
helium has two positive protons and two negative neutrons
and two negative electrons