What is an autotroph? Select one:

An organism that eats other organisms for food.

An organism that does not need food.

An organism that eats itself for food.

An organism that can build its own food.

Dermal tissue in plants stores 1.extra food 2.transports water and nutrients 3.transports waste materials 4.is similar to epithelial cells in animals

Which of the follow describes a disadvantage secondary sources have compared to primary sources?

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes