What is the evolution of a horse an example of?
The sequence, from Eohippus to the modern horse (Equus), was popularized by Thomas Huxley and became one of the most widely known examples of a clear evolutionary progression.
What does the fossil record show about the history of the horse?
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.
How did the fossil record of horses provide evidence for evolution?
Early horse ancestors were originally specialized for tropical forests, while modern horses are now adapted to life on drier land. Successive fossils show the evolution of teeth shapes and foot and leg anatomy to a grazing habit with adaptations for escaping predators.
Which of the following is an example of microevolution?
Pesticide resistance, herbicide resistance, and antibiotic resistance are all examples of microevolution by natural selection. The enterococci bacteria, shown here, have evolved a resistance to several kinds of antibiotics.
Which of the following is an example of a microevolution?
Why is the horse a good example of evolution?
“Horses are a very good example because there is a long, continuous fossil sequence of horses extending 55 million years in North America, providing the tangible evidence to trace individual steps or changes in evolution over a prolonged period of time,” he said.
What is microevolution provide an example of microevolution?
Microevolution is the change in allele frequencies that occurs over time within a population. Ecological genetics concerns itself with observing microevolution in the wild. Typically, observable instances of evolution are examples of microevolution; for example, bacterial strains that have antibiotic resistance.
What are the types of microevolution?
Microevolution is the change in allele frequencies that occurs over time within a population. This change is due to five different processes: mutation, selection (natural and artificial), gene flow, gene migration and genetic drift.
What is phylogeny give example?
A phylogeny is often depicted using a phylogenetic tree, such as the simple one below describing the evolutionary relationships between the great apes. The genus Pongo includes orangutans, Pan includes chimpanzees and bonobos, and Homo includes humans, while Gorilla is self-evident.
Which is the correct phylogeny of the horse?
1. PHYLOGENY OF HORSE 2. *SCIENTIFIC CLASSIFICATION OF HORSE Kingdom : Animalia Phylum: Chordata Class: Mammalia Order: Perissodactyla Family: Equidae Genus: Equus Species: E.ferus Sub-species: E.f.caballus 3. *PREHISTORIC HORSE •The horse as we know it today is descendant from a small primitive, four toed animal.
Which is the only example of the evolution of the horse?
evolution of the horseEvolution of the horse over the past 55 million years. The present-day Przewalski’s horse is believed to be the only remaining example of a wild horse—i.e., the last remaining modern horse to have evolved by natural selection.
How did Eohippus affect the evolution of the horse?
Eohippus was, in fact, so unhorselike that its evolutionary relationship to the modern equines was at first unsuspected. It was not until paleontologists had unearthed fossils of later extinct horses that the link to Eohippus became clear. evolution of the horseEvolution of the horse over the past 55 million years.
Which is the oldest member of the horse family?
Hyracotherium, often called Eohippus (“dawn horse”), is the oldest known member of the horse lineage. Although Eohippus fossils occur in both the Old and the New World, the subsequent evolution of the horse took place chiefly in North America. During the remainder of the Eocene, the prime evolutionary changes were in dentition.