Why do scientists that that photosynthetic prokaryotes were probably not the first life forms on earth

Think about the events of the week in your life. Identify a situation in which the steps of the scientific method apply. Explain each step.

How many molecules of ATP are produced as a result of the kerbs cycle

Almost all enzymes are proteins. true false

Whats the difference between a neap tide and a spring tide

What does the name given to the aldabra giant tortoise

is Earth an open system or closed system? Explain your answer and provide at least one example that occurred during the Precambrian era

The human genome comprises about 3 x 109 base pairs of DNA, and no two humans, other than identical twins, ever have been or will be genetically identical. Between any two humans, the amount of genetic variation is about 0.1 percent.

Which equation represents a reduction half-react

How many calories would be avaliable to a Cod

If you were exposed to poison ivy which of the treatments below would you apply to the affected area to make this offending chemical most soluble so to be washed away?