Evolution

Lucy, the fossil remains of an Australopithecus afarensis is important because her bones provide evidence that early hominins (man's early ancestors) walked upright. She also represents one of the most complete specimens of a fossilised human ancestor.

Schroth provides evidence of President Trump's history of lying and misleading the public, citing examples from his time in office as well as during his presidential campaign. He also mentions Trump's pattern of attacking the media and spreading misinformation to undermine their credibility.

The idea is that there is no idea:P I'm just jocking guys

The idea is that there is no idea:P I'm just jocking guys

It was bad reasoning.

Charles Darwin saw how breeders of dogs or cattle selected for certain good traits when they breed their animals. Darwin thought this was how one species evolved into another species, by one advantageous trait being selected by nature and so one species could evolve into another.

But scientists have never seen any evidence of one species evolving into another even in the fossil record there is no evidence of any intermediary forms.

The punctuated equilibrium theory suggests that species tend to evolve in rapid bursts of change followed by long periods of stability. This theory proposes that evolution does not always occur gradually and uniformly, but can involve abrupt shifts in traits due to significant environmental changes or genetic factors.

Homologous structures in different species are evidence of a common evolutionary ancestry. These structures have a similar origin, but may have different functions in different species. Studying homologous structures helps researchers understand how species have diverged and evolved over time.

Evolutionary theory combines aspects of biology and natural selection to explain how organisms have evolved over time, based on genetic variations that provide advantages for survival and reproduction. Adaptations and changes in species occur through the process of natural selection, which leads to the gradual development of new traits and the diversity of life on Earth.

One flaw of trait theory is that it oversimplifies leadership by suggesting that certain traits are universally effective in all situations. Another flaw is the difficulty in determining which traits are truly indicative of effective leadership, as traits can vary greatly depending on the context. Additionally, trait theory fails to consider the impact of situational factors and followers' characteristics on leadership effectiveness.

The concept of a common ancestor in evolution suggests that all life on Earth shares a common origin, providing a framework to explain the diversity of species through gradual changes over time. It supports the theory of evolution by showcasing the interrelatedness of all organisms and the branching patterns of descent that have led to the vast array of species we observe today. By tracing back to a common ancestor, scientists can understand the evolutionary relationships among different species and how they have diverged and adapted over time.

Eugenics is an attempt to directly influence the coarse of human evolution by artificially selecting the pool of breeding partners and the resultant offspring. In effect, the methods are little different from those used in the breeding of cattle. One can model the outcome of such an experiment by applying evolutionary theory, genetics, to the parameters of the experiment. Other than that, there's no real linkage between eugenics and evolutionary theory.

It isn't, really. Evolutionary theory is accepted by anybody with sufficient education and sufficiently small biases as the best and only scientific explanation for the diversity of modern life. This includes some 99% of all publishing scientists, and a large segment of the general public. The theory is only regarded as controversial by a small but vocal minority of religious fundamentalists who seek to impose their religious beliefs on science and education.

" Nothing in biology makes sense except in the light of evolution. "

Quoted from a great man who was instrumental in the new synthesis ( the Neo-darwinian synthesis--where I take my user name from ) by his contributions to the understanding of genetics and how it applied to natural selection. Google the above quote to find out who said this.

Without an understanding of evolution and the theory that explains much of evolution you might as well not study biology. That is the benefit of studying evolution.

Evolutionary play refers to the idea that play behavior in animals serves an evolutionary purpose, such as helping individuals practice skills necessary for survival or building social bonds that enhance group cohesion. This behavior can be observed in various species, including humans, and is believed to contribute to the development and adaptation of individuals within a population.

The best evidence that organisms of two different species share a common ancestor is the presence of homologous structures. These structures have similar features due to shared ancestry, even if they serve different functions in different species. Additionally, similarities in DNA sequences and developmental patterns can indicate a common evolutionary history.

The theory of evolution was formulated by Charles Darwin in the mid-19th century, with his seminal work "On the Origin of Species" published in 1859. Darwin proposed the concept of natural selection as the mechanism driving the process of evolution.

Evolutionary theory was important because it provided a framework to understand the diversity of life on Earth and how species have changed over time. It helped explain the mechanisms of natural selection and adaptation, and has influenced various fields such as biology, medicine, and ecology. Additionally, it has shaped our understanding of the interconnectedness of all living organisms.

Many carnivorous predators will maim (not kill) their primary prey in an effort to teach their young the rewards of hunting for themselves. This tends to 'evolve' the skills of the young. Grizzlies are well known to toss a wounded salmon to their young, and mountain lions will tear off a leg from a rabbit and throw it their young. Examples abound.

Answer 1

Whales first evolved roughly 54 million years ago.Homo sapiens (modern humans) evolved roughly 4 million years ago.

Answer 2

Whales and humans share a common ancestry in the clade of Boreoeutheria, dating back some 65 million years. By my best estimate, that's when the lineages leading to modern humans and modern whales went their separate ways.

Modern whales, like the blue whale, form a diverse group of species, just like modern apes, like the humans, form a diverse group of species. On a geological timescale, there may not be much difference between the emergence of the modern species of whale from their basal clades and the emergence of modern species of ape from their basal clades.

Comparing the emergence of modern humans to the emergence of whales isn't really a useful comparison. It's like comparing the emergence of vehicles to the emergence of the Audi A3.

The two kingdom classification system was a method of classifying living organisms into two kingdoms - vegetabilia (plants and fungi) and animalia (animals). It was established by Linnaeus in 1735.

Branch points on an evolutionary tree represent common ancestors from which two or more different lineages diverged. They indicate where species or groups shared a common ancestor before evolving along separate paths.

Charles Darwin is primarily associated with the theory of evolution through his work on natural selection and the publication of "On the Origin of Species." Other scientists, such as Alfred Russel Wallace, also contributed to the development of evolutionary theory.

Punctuated equilibrium is a theory in evolutionary biology that suggests species evolve rapidly in short bursts followed by long periods of stasis. This model contrasts with gradualism, which proposes a slower, constant rate of evolutionary change over time. Punctuated equilibrium helps explain the presence of gaps in the fossil record and sudden appearances of new species.