"all living organisms rely on for their energy needs"

The right answer that fits the blank space is: ATP (adenosine triphosphate)

Explanation:

This is the molecule that helps every living being to survive and fulfill its needs to pass their genes to the next generation. In humans, for example, this molecule is made in the process of respiration, where mitochondria is the main part of the process, but there are important things that happen before it occurs inside the mitochondria too, animals that use oxygen to produce energy are called aerobic. There are other organisms that don't use oxygen to produce energy, such as the Lactobacillus bulgaricus, these kinds of organisms are called anaerobic.

lysosomes contain a variety of enzymes, enabling the cell to break down various biomolecules it engulfs, including peptides, nucleic acids, carbohydrates, and lipids (lysosomal lipase). the enzymes responsible for this hydrolysis require an acidic environment for optimal activity. hope i !

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".