Evolution Quizizz

This cladogram shows the evolutionary relationships among some mammals based on homologous structures. Which statement is supported by this cladogram?

• Hippos are more closely related to cows than to javelinas.

• Toothed whales are more closely related to mouse deer than hippos.

• Javelinas and pigs are more closely related than baleen whales and toothed whales.

• Cows and mouse deer are more closely related than to javelinas and pigs.

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Scientists can determine relatedness among organisms by comparing partial amino acid sequences. The table shows four partial amino acid sequences from four organisms. Which organism is the LEAST related to the other three organisms?

• Organism 1

• Organism 2

• Organism 3

• Organism 4

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The image shows part of the humerus bone in different genera of primates. Which statement is best supported by the observable structures of the different humerus bones?

• The primates lived in similar environments.

• The primates shared a common ancestor.

• The primates interbreed with similar organisms in a population.

• The primates had diets that consisted of similar types of foods.

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Niles Eldredge and Stephen Jay Gould researched the lenses of the eyes of fossil trilobites of different species. In 1972 they published a paper in which they described the tendency of a species to remain the same until a sudden change in the environment causes a new related species to appear. Which hypothesis was most challenged by the work of Eldredge and Gould?

• Redi's hypothesis that spontaneous generation does not occur

• Haeckel's hypothesis that embryological development mimics the evolution of species

• Wallace's hypothesis that geography affects the distribution of species

• Darwin's hypothesis that the development of species is a slow, gradual process

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When multiple transitional fossils are found in many rock layers, they provide evidence of -

• seasonal variation in the diet of a species

• gradual change of a species over time

• DNA functioning as the genetic material of organisms

• an unchanging environment

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Two scientists studied patterns of evolution in the fossil record. Many species they analyzed showed periods of slow changes interrupted by a period of rapid change. This pattern of periods of slow change interrupted by periods of rapid change with a few, if any transitional fossils, best describes the theory of -

• natural selection

• genetic drift

• punctuated equilibrium

• gene flow

A cladogram of five species is shown. Based on the cladogram, the ancestral species most likely had -

• a vertebral column

• a vertebral column and hair

• sharp teeth and retractable claws

• the ability to purr

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Researchers analyzed a mitochondrial gene of different bat species to determine relatedness. A cladogram of their results is shown. Based on the cladogram, which set of bat species is the least related?

• Ptenochirus minor and Megaerops niphanae

• Dyacopterus spadiceus and Otopteropus cartilagonodus

• Haplonycteris fischeri and Ptenochirus jagori

• Cynopterus sphinx and Chrionax melanocephalus

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