Which Best Accounts For The Changes In The Horse?

Which best accounts for the changes in the horse? Through natural selection, favorable adaptations were passed to offspring, allowing for the evolution of the horse.

Which type of species has the best chance of surviving through significant environmental change?

Summary: New research that analyzed more than 270 million years of data on animals shows that mammals and birds — both warm-blooded animals — may have a better chance of evolving and adapting to the Earth’s rapidly changing climate than their cold-blooded peers, reptiles and amphibians.

Which evidence would best support the extinction of a past species?

Fossils provide evidence of long-term evolutionary changes, documenting the past existence of species that are now extinct.

How has the horse evolved over time?

The line leading from Eohippus to the modern horse exhibits the following evolutionary trends: increase in size, reduction in the number of hooves, loss of the footpads, lengthening of the legs, fusion of the independent bones of the lower legs, elongation of the muzzle, increase in the size and complexity of the brain

Which best describes how the front limbs of horses have changed over time?

Which BEST describes how the front limbs of horses have changed over time? They have gained additional toes.

What was the first horse?

Eohippus
Eohippus, (genus Hyracotherium), also called dawn horse, extinct group of mammals that were the first known horses. They flourished in North America and Europe during the early part of the Eocene Epoch (56 million to 33.9 million years ago).

Which best describes the changes in the populations of brown grasshoppers and green grasshoppers over time in this grassland ecosystem?

Which best describes the changes in the populations of brown grasshoppers and green grasshoppers over time in this grassland ecosystem? The populations of brown grasshoppers and green grasshoppers will both increase over time.

What animals are most likely to survive climate change?

The African elephant, Siberian tiger, chimpanzee, greater horseshoe bat, llama, vicuña and white rhinoceros are likely to survive heavy rainfall or prolonged drought. So too are the grizzly bear, American bison, klipspringer and Schreibers’s bat.

Which animals can best withstand climate change?

African elephant, Siberian tiger, chimpanzee, greater horseshoe bat, llama, vicuña, white rhinoceros, grizzly bear, American bison, klipspringer, Schreibers’s bat.

What is the most effective evidence for evolution?

Perhaps the most persuasive fossil evidence for evolution is the consistency of the sequence of fossils from early to recent. Nowhere on Earth do we find, for example, mammals in Devonian (the age of fishes) strata, or human fossils coexisting with dinosaur remains.

What provides the best evidence for evolution?

Today, scientists can compare their DNA. Similar DNA sequences are the strongest evidence for evolution from a common ancestor.

What are the 5 evidence of evolution?

Evidence for evolution: anatomy, molecular biology, biogeography, fossils, & direct observation.

What evidence has been found for the evolution of horses?

A dog-like organism gave rise to the first horse ancestors 55-42 million years ago. The fossil record shows modern horses moved from tropical forests to prairie habitats, developed teeth, and grew in size. The first equid fossil was a tooth from the extinct species Equus curvidens found in Paris in the 1820s.

What caused horses to grow and evolve?

A Brief History of Horses
But changing climate conditions allowed grasslands to expand, and about 20 million years ago, many new species rapidly evolved. Some–but not all–became larger and had the familiar hooves and grazing diets that we associate with horses today.

What is true horse evolution?

The evolution of the horse, a mammal of the family Equidae, occurred over a geologic time scale of 50 million years, transforming the small, dog-sized, forest-dwelling Eohippus into the modern horse.

How did the bones in horse feet change over time?

Over millions of years, many horse species lost most of their side toes. The middle toe evolved into a single large hoof, while the other toes became smaller and ultimately functionless.

How are the changes in the feet an adaptation for the horse?

Horses developed attributes that allowed them to better survive in the types of areas where they existed. Horses in wet, marshy areas developed large, flat hooves that enabled them greater purchase in the soil. Plains-dwelling horses developed small, hard hooves that provided them swift flight across the solid ground.

What is the most significant change in leg anatomy from the down horse to the modern horse?

What is the biggest change in leg anatomy that occured from the dawn horse to the modern horse? Increase in size, reduction in # of toes.

What are the 3 types of horses?

All horse breeds are classified into three main groups: heavy horses, light horses, and ponies. Heavy horses are the largest horses, with large bones and thick legs. Some weigh more than 2,000 pounds. Light horses are smaller horses, with small bones and thin legs.

Who first used horse?

Archaeologists say horse domestication may have begun in Kazakhstan about 5,500 years ago, about 1,000 years earlier than originally thought. Their findings also put horse domestication in Kazakhstan about 2,000 years earlier than that known to have existed in Europe.

Who first ride a horse?

Archaeologists have suspected for some time that the Botai people were the world’s first horsemen but previous sketchy evidence has been disputed, with some arguing that the Botai simply hunted horses. Now Outram and colleagues believe they have three conclusive pieces of evidence proving domestication.