The first organisms evolved on earth around 4 billion years ago. the fossil record indicates that the first organisms were which of the following? . a) eukaryotes. b) plastids. c) mitochondria. d) prokaryotes

The correct answer is (d) Prokaryotes.

The word pro means "before". They are usually unicellular organisms and sometimes multicellular. The first living organisms found on earth are supposed to be prokaryotes. They are divided into two species of bacteria Archae and bacteria. They lack membrane bound organelles and all the water soluble components are present without membrane in the cytoplasm. They have primitive features hence a fossil found indicates towards prokaryotes.

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i think its control and coordinate because im pretty sure thats what tissue does and the joints are what control movement and then your skeletal/ bones provides portection. hope that .

frogs. the lower the ph the higher the acid content. frogs have the highest tolerance in this scenario.