phylogenetic tree(1).png  Using the phylogenetic tree, which of the following is most closely related to species D?

Structural carb found in cell walls of most fungi

A change in allele frequencies over successive generations in a population signifies that some level of evolution is occurring.

apes_cladogram.jpg  Humans, chimpanzees, gorillas, and orangutans are members of a clade called the great apes, which shared a common ancestor about fifteen million years ago. Gibbons and siamangs comprise a clade called the lesser apes. Tree-branch lengths indicate elapsed time. Chimps and gorillas are humans’ closest relatives. If humans were removed from the great ape clade and placed in a different clade of their own, this would have the effect of making the phylogenetic tree of the great apes _____.

______________ is the science of describing, naming, and classifying living and extinct organisms and viruses.

What characteristic(s) make arthropods so successful?

Which of these are ways humans use bacteria for our own benefit?

True or False: Genetic evidence from mitochondrial DNA and Y-chromosome DNA suggests modern humans, Homo sapiens sapiens, arose in Africa and migrated outward from there, and this subspecies designation identifies us all as one subspecies today, synonymous biologically with us belonging to one “biological race” with many populations, however connected or disconnected in known history.

You discover a new species in a remote rainforest, but this species exhibits some unusual characteristics. It has feathers, but cannot fly, it just uses its feathers to provide insulation and help regulate body temperature, similar to fur. Additionally, this creature produces an oily substance from something equivalent to salivary glands that is not milk but similar to it in that it is used to nurse its young and in nest-building. It builds nests and lays eggs, but it also shows a remarkable level of parental care, with both parents actively involved in feeding and raising their offspring. Given these intriguing characteristics, speculate on the classification of this unique species. Think about shared characteristics. Is it most likely to be a mammal, non-avian reptile, amphibian, or bird?

Which order do frogs and toads fall into?