Are mutations the only source of genetic variation for asexual reproduction- true or false

Is meiosis the only source of genetic variation for sexual reproduction- true or false

How does secondary succession differ from primary succession?

In this assignment, you will analyze an example of speciation by researching the finches of the galapagos islands. then you will answer questions to construct explanations and draw conclusions based on the information you gather. someone plz !

List five ways we are indebted to phytoplankton