According the theory developed by Lynn Margulis (endosymbiotic theory, why was it adaptive for a host cell to keep an engulfed cell alive, rather than digesting it and using it as food?

How does an angiosperm prevent self pollination

How have high taxes on tobacco products impacted the number of people who use them? a. the number of tobacco users has increased. b. the number of tobacco users has decreased. c. the number of tobacco users has not changed. d. the number of adolescent tobacco users decreased, while the number of adult users increased

What is the main function of the central vacuole in a plant cell? a. absorbs energy from the sun to produce food b. holds water and maintains turgor pressure c. breaks down molecules to release energy d. contains the cell's genetic material