Which general function does lactase perform?

How does an angiosperm prevent self pollination

Plz ! for many generations farmers in north america have been choosing to cross corn plants with large ears of corn each year this results in the new generation of plants also growing large ears of corn. what is the technique called? a. selective breeding. b. natural selection. c. mitosis. d. asexual budding.

When a gasoline engine burns gasoline, what type of chemical reaction is occurring?