Laveran - Monday (03/03) - Evidences of Evolution Practice (2/28/2025)

The presence of a blowhole adapted for breathing at the water's surface.

Pelvic bones that serve no functional purpose in movement.

Streamlined body shape adapted for efficient swimming.

Flippers with modified bones that resemble fish fins.

The Tiger, because it has a 70% similarity in DNA with the new organim.

The Dog, because it has a 60% similarity in DNA with the new organism.

The Lion, because it has a 98% similarity in DNA with the new organism.

There isn't enough information for determine which organism is more closely related to the new organism

Horse and Zebra

Human and Gorilla

Chimpanzee and Gorilla

Human and Chimpanzee

Biodiversity increases steadily over time as species gradually adapt to environmental changes.

Long periods of evolutionary stability are interrupted by short bursts of rapid speciation, leading to the sudden appearance of new species.

Extinction events consistently reduce biodiversity, preventing the formation of new species.

Genetic drift causes small, random changes in species over long periods, leading to a slow accumulation of biodiversity.

Natural selection operates uniformly across all species, resulting in a constant rate of biodiversity increase.

A stable environment with minimal ecological disturbances over millions of years.

Large populations with high genetic diversity spread evenly across a broad geographic range.

Small, isolated populations experiencing rapid environmental changes or niche openings.

A constant selective pressure causing steady adaptation across generations.

The evolutionary pathway of horses suggests that species arose independently in different environments, without a continuous transition over time.

The fossil record reveals sudden appearances of new horse species, with long periods showing little to no anatomical change in the intermediate forms.

The transition from Eohippus to Equus shows a slow, continuous accumulation of changes in skull shape, limb structure, and body size over millions of years.

Each transition between species occurred rapidly, suggesting evolution occurred in short bursts followed by long periods of stability.

The limbs are NOT homologous and do NOT indicate a common ancestor

These limbs perform the same basic function and are parts of mammals

These limbs show the evolution of one organisms into different organisms

These limbs are homologous structures which provide evidence of a common ancestor

The wings demonstrate that ostriches evolved independently from other birds with no common ancestry.

The presence of wings in ostriches suggests that their ancestors were likely capable of flight, linking them to other avian (winged) species.

Ostrich wings evolved as a specialized adaptation exclusively for balance and thermoregulation, unrelated to flight.

Vestigial wings in ostriches indicate that they share a closer evolutionary relationship with mammals than with other birds.

They look similar. This means they share a recent common ancestor.

They look different. This means they are not related.

There are no particular similarities or differences between the shapes of the chimpanzee and human skulls.

They look similar, but this does not mean that they share a recent common ancestor.

Humans and cows are most closely related.

Chimpanzee and dog are most least related.

Humans and mouse are least closely related.

Humans and chimpanzee are most closely related.

Humans are equally distantly related to chimpanzees and goldfish because they all share a common genetic code.

The data suggests that humans are more closely related to chimpanzees than to goldfish, as indicated by a 98% similarity with chimpanzees compared to only 18% with goldfish.

The 18% genetic similarity between humans and goldfish suggests that goldfish are direct ancestors of humans.

Goldfish are more closely related to humans than chimpanzees because they both possess conserved genes essential for cellular function.

Organism 1, because they have more Amino Acids in common.

Organism 3, because they have fewer Amino Acids in common.

Organism 1, because they have fewer Amino Acids in common.

Organism 3, because they have more Amino Acids in common.

The presence of homologous structures during embryonic development indicates that different species evolve independently but develop similar traits later in life.

Early-stage embryos of vertebrates display similarities, suggesting descent from a common ancestor.

Vertebrate embryos exhibit different developmental patterns from the earliest stages, reflecting their adaptation to specific environments.

Embryological similarities arise mainly from environmental pressures during gestation (pregnancy) and are not connected to evolutionary relationships.

The similarities are purely coincidental and do not provide evidence of evolutionary relationships.

The similarities in the early stages of development suggest that all vertebrates share a common ancestor, with variations arising later in development.

These embryonic similarities indicate that all mammals evolved independently but required similar developmental processes.

The differences in the final stages of development indicate that these species do not share any evolutionary connection, despite early-stage similarities.

The study of the evolutionary relationships between species.

The study of the geographic distribution of species through time and space.

The study of genetic variation within populations across different regions.

The study of the physical and chemical processes shaping the Earth’s surface.

It shows how species of camels evolved independently on different continents.

It demonstrates the movement and distribution of camel ancestors across continents over time.

It highlights how camels were domesticated simultaneously in Africa and South America.

It represents the genetic differences between modern camel species in Asia and South America.

It shows that similar species in different regions always evolve independently, without shared ancestors.

It demonstrates that species with common ancestors are often found in geographically connected or historically connected regions.

It proves that all species originated in the same location and spread uniformly across the globe.

It suggests that species with similar traits always arise through chance, regardless of their location.