A boundary membrane
Protobionts
They contain cytoplasm.
they al are outer planets.
In protobionts, you would expect to see metabolic processes such as energy generation through chemiosmosis or photosynthesis, synthesis of basic building blocks like amino acids and nucleotides, and potentially the beginnings of primitive metabolic pathways for growth and reproduction. These processes would allow protobionts to sustain themselves and potentially evolve into more complex forms of life.
They are AUTOTROPHS (make their own food).
Protobionts are aggregates of abiotically produced molecules. They are not capable of precise reproduction, but they maintain an internal chemical environment different from their surroundings and exhibit some of the properties associated with life, including metabolism and excitability.
prokaryotes
Protobionts
Protobionts
Living things share all of the following characteristics except _____.
Genitals
They contain cytoplasm.
production of light
Protobionts
Protobionts are important because they are thought to represent the first steps in the evolution of life. They are simple, self-organized structures with properties that resemble living cells, providing insight into how life may have originated on Earth. Studying protobionts can help scientists understand the transition from non-living to living systems.
I'm not sure if you mean their common characteristics, or characteristics that they have in common. Some common characteristics are that they have exoskeletons and they are segmented. However, they also have some characteristics that they have in common, and some which no other animals have. One of these characteristics is that they possess biramous appendages, which means legs and other appendages which are forked into two pieces, although some crustaceans lose the minor piece of some legs as they mature. The seoncd thing they all have in common is that all of them first pass through a nauplius larval stage.
they all have a back bone