Ones that have no internal or external skeletons, like jellyfish for example.
Euryhaline organisms are more likely to be found in estuaries, as they can tolerate a wide range of salinities. Stenohaline organisms, which can only tolerate narrow salinity ranges, are less common in estuaries because of the fluctuating salinity levels in this environment.
Organisms that are less fit can die before they reproduce. This is statistically more likely for such organisms. Organisms that are less fit have problems getting mates as they are passed over in greater numbers than fit organisms. Organisms that are less fit can not bring the offspring to term and provide as well for the offspring as fit organisms can. Organisms that are less fit pass on to their progeny the genetic insults that they carry, thus their offspring are less fit also. And many other reasons could be thought of here, so you think of some reasons yourself.
High sodium can lead to salt poisoning in animals. Salt poisoning is less likely to occur if plenty of freshwater is available.
Single-celled organisms lack hard parts like shells or skeletons, making it difficult for them to leave behind fossils. Soft-bodied organisms are less likely to be preserved in the fossil record compared to organisms with hard parts, like shells or bones. Additionally, single-celled organisms are more likely to be broken down and decomposed before they have a chance to fossilize.
species
Ones with hard bony parts, soft tissues do not from fossils.
Those that have body parts that are already mineralized. eg. shells and bones. A coral reef is a prime candidate.
Records of animal types are seen through fossilised remains.
Euryhaline organisms are more likely to be found in estuaries, as they can tolerate a wide range of salinities. Stenohaline organisms, which can only tolerate narrow salinity ranges, are less common in estuaries because of the fluctuating salinity levels in this environment.
it is if it is fossilised
they are plants
They are fossils themselves, just not the kind you think of when you see fossilised dinosaurs or other prehistoric creatures like trilobites, where a fossil is inside a rock. Coal for example is fossilised wood. Oil is the decomposed remains of plankton, etc. They were all once living organisms.
Organisms that are less fit can die before they reproduce. This is statistically more likely for such organisms. Organisms that are less fit have problems getting mates as they are passed over in greater numbers than fit organisms. Organisms that are less fit can not bring the offspring to term and provide as well for the offspring as fit organisms can. Organisms that are less fit pass on to their progeny the genetic insults that they carry, thus their offspring are less fit also. And many other reasons could be thought of here, so you think of some reasons yourself.
Fossilised
they are less diverse
Organisms in the ocean with the smallest total biomass are most likely the what?
ignious