Cuales son los aminoacidos esenciales que se producen en microorganismos y sus usos

As , plants meet their needs for making food from air, soil, water, and the sun's energy in a process called there are plants called grow high in trees without here are words to put in the blanks. 1.) producers 2.) consumers 3.) chloroplasts 4.) epiphytes

The kind of fertilization found in the majority of aquatic animals is (internal or external) fertilization.

Which would be the most useful source of evidence to support mcneill's contention?