Examlex
Which pigment occurs in all photosynthetic eukaryotes?
Phylum
A taxonomic grouping of related, similar classes; a category beneath the kingdom and above the class.
Chordata
A phylum of animals possessing a notochord at some stage in their development, including vertebrates like fish, amphibians, reptiles, birds, and mammals.
Vertebrata
A subphylum of chordates that includes animals with backbones or spinal columns.
Mammalia
A class of warm-blooded vertebrate animals characterized by the possession of mammary glands, which females use to feed their young, among other distinctive features.
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