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.
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 evidence must be carefully examined to determine that organisms changed over time?
Fossils can be used to determine the exact age of a particular species. Fossils record information about the mechanisms ancestral species used to capture and transform energy. Fossils preserve DNA, so that comparisons can be made between modern organisms and ancestral species.
Which statement best describes how whale flippers and fish fins are related? They are both specialized limbs.
Which is the best prediction of what might happen to the moth population over time?
Which is the best prediction of what might happen to the moth population over time? The lighter-shaded moths will be removed from the population.
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
How did horse teeth change over time?
Grass-eating horses evolved longer teeth that could withstand this wear. Until recently, scientists thought that all horses with long teeth grazed on grass. But new evidence shows that some long-toothed species also grazed on leaves.
What is the best evidence that gives a detailed record of changes in species over time group of answer choices?
The fossil record provides evidence by revealing the features of an ancestor for comparison against living descendants. Fossils are the preserved remains of animals, plants, and other organisms from the past. The fossil record shows the gradual change of species over time.
What are two types of evidence that suggest that species have changed over time?
what are two types of evidence that suggest that evolution has occurred? fossil evidence and molecular evidence. how do fossils provide evidence that evolution has taken place? they show that organisms have changed over time.
What are the 4 main sources of evidence that organisms change over time evolve?
Five types of evidence for evolution are discussed in this section: ancient organism remains, fossil layers, similarities among organisms alive today, similarities in DNA, and similarities of embryos.
What type of relationship is represented in barnacles which use the whale to move around and find locations with food?
This type of symbiotic relationship is known as commensalism. In this case, attaching to the whales gives the barnacles a stable place to live, a free ride, and access to plenty of food.
Is front flippers of whales and forelegs of dog analogous or homologous?
homologous structures
A common example of homologous structures is the forelimbs of vertebrates, where the wings of bats and birds, the arms of primates, the front flippers of whales and the forelegs of four-legged vertebrates like dogs and crocodiles are all derived from the same ancestral tetrapod structure.
What best describes the hind leg bones seen in the whale?
These structures, which are often reduced in size, are known as vestigial structures. Examples of vestigial structures include the tailbone of humans (a vestigial tail), the hind leg bones of whales, and the underdeveloped legs found in some snakes.
What is the most important factor in how species change over time?
Both groups of scientists agree that natural selection is the single most important factor in evolutionary changes in species. Whether the change is slow and gradual or punctuated and rapid, one thing is certain: Organisms have evolved over time.
What caused the moths to change over time?
Industrialisation and domestic coal fires had caused sooty air pollution, which had killed off lichens and blackened urban tree trunks and walls. So, it was now the pale form of the moth that was more obvious to predators, while the melanic form was better camouflaged and more likely to survive and produce offspring.
Why did the population of peppered moths change over time?
When the environment changed, due to pollution, the moth population shifted because light-colored moths became easier to see so they were eaten more often. Organisms that survive have a better chance of reproducing so the population continues to grow.
Why did horses evolve to have longer legs?
Palaeobiologists from the University of Bristol and Howard University (USA) have uncovered new evidence that suggests that horses’ legs have adapted over time to be optimised for endurance travel, rather than speed.
Why did the horse evolve long legs?
Prairie-dwelling equine species developed hooves and longer legs that were both sturdy and light weight to help them evade predators and cover longer distances in search of food.
Why did horses evolve to have hooves?
It’s likely that the question of how the hoof evolved has plagued scientists since the moment the first fossil of a three-toed horse was found. Most agree that the hoof was an adaptation that promoted survival by allowing horses greater speed in order to evade predators.
Do horses front teeth grow?
Over the course of its first five years the young horse will uneventfully change over its entire set of 12 front teeth from baby to adult teeth.
Do horses front teeth keep growing?
Did you know you can determine a horse’s age by its teeth? That’s because horses’ teeth grow and change constantly! They continually file their own teeth down by chewing. However, if they don’t chew evenly, their teeth can grow sharp edges.
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