Answer:
The answer is The salamander has lungs, but not claws or nails.
Explanation:
Cladogram:
A cladogram is a diagrammatic epresentation of the evolutionary relationships between organisms that emerged from the same ancestor. Basically, it shows how closely one organism is related to another.
A cladogram differs with a phylogenetic tree in the sense that a cladogram only shows evolutionary relationships between one ancestor and all its descendants. On the other hand, a phylogenetic tree explains relationships between many clades (group of related species)
- In this clade, claws and nails evolved later than the emergence of salamanders and salmon. Therefore, the salamander does have lungs but not claws or nails.
- All these organisms have a common ancestor. As you look at the bottom, all the branches lead to a single, common ancestor.
- In a clade, the organisms closest in terms of evolution are placed close to each other. Therefore, the salmon is most closely related to the lizard not the hamster.
- Similarly, the final descendant of the ancestor i.e. the chimpanzee is most closely related to the lizard rather than the salamander.
pH is a measure of how acidic/basic water is. The range goes from 0 to 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water.
