Evolution

In the science, evolution means change over time. These changes are selected by the environment. What genes (traits) that will allow a species to survive will be passed on to the next generations.

Evidence for evolution leading to the development of modern species includes the fossil record showing transitional forms, genetic similarities between species, geographic distribution of species, and the observation of natural selection in action. These pieces of evidence support the idea that species have changed over time and continue to do so through the process of evolution.

Basically, in three ways.

Independent orientation of the chromosomes in meiosis.

Crossing over in chromosomes in meiosis.

Random fertilization; the random mathching of any sperm/egg combination in fertilization.

Branching refers to creating alternate streams of development within a code repository. It allows developers to work on different features or fixes in isolation without affecting the main code base. Once development is completed in a branch, it can be merged back into the main branch.

Rabbits are browsers that eat vegetative matter to completeness. Buffalo are grazers that crop grass to a level well above the roots. If enough rabbit browsers were on the grazing area of the buffalo then the grass would be eaten to the root and the buffalo would be short of its sustenance.

Two theories that are not accepted today are the geocentric theory (belief that the Earth is the center of the universe) and the theory of spontaneous generation (belief that living organisms can arise from non-living matter).

Yes, it most certainly did. Since common descent became fact, biologists mostly classify organisms not by their place in the nested hierarchies, but by their descent.

Although, interestingly, it was the first attempts to systematically classify life, by Carl Linnaeus, that provided the key insights leading eventually to the thesis of common descent, as formulated by Charles Darwin.

Recessive genes can persist in a population because they can be carried in individuals without being expressed. These hidden recessive genes can be passed down through generations, only showing up if inherited from both parents. Additionally, genetic diversity can help maintain recessive genes in a population even if they are not expressed in every generation.

The study of ecology is important for biologists as it helps them understand the interactions between organisms and their environment, which is crucial for conservation efforts and understanding ecosystems. Animal behavior is essential for biologists to comprehend as it sheds light on how animals adapt to their surroundings, communicate, reproduce, and survive. Both ecology and animal behavior provide valuable insights that contribute to a comprehensive understanding of the natural world.

Adaptive in evolution refers to traits or characteristics that increase an organism's chances of survival and reproduction in a specific environment. These adaptations are shaped by natural selection, where individuals with advantageous traits are more likely to pass on their genes to the next generation.

Endosymbiosis is the process where one organism lives inside another. In the evolution of eukaryotes, it is believed that a prokaryotic cell engulfed a smaller prokaryotic cell, forming a symbiotic relationship. This led to the development of organelles like mitochondria. Mitochondria are crucial in eukaryotic evolution because they produce energy for the cell through respiration, allowing for more complex cellular functions to evolve.

Yes, humans are responsible for selecting desirable traits in plants and animals through artificial selection, which can influence the direction of evolution. By selectively breeding individuals with preferred traits, humans can drive the evolution of domesticated species in a specific direction.

Evolution is the change in allelic constitution of a population gene pool over time. As organisms reproduce, some variants reproduce less, others more, causing some alleles to increase their frequency in the gene pool, while other allele frequencies decline. It is the differential reproductive success of variants in the population that drives this change.

Endosymbiosis is the theory that explains the origin of eukaryotic cells from prokaryotic organisms. Mitochondria, once free-living bacteria, were engulfed by ancestral eukaryotic cells through endosymbiosis. This process facilitated the development of more complex cellular structures and functions in eukaryotic cells, contributing to their evolution and ultimately leading to the diversity of life we see today.

Evolution is the process by which species change over time through genetic variation and natural selection. The speed of evolution can vary greatly, from rapid changes over a few generations in response to selective pressures to much slower changes over thousands or millions of years. It depends on factors such as the species involved, the strength of selection pressures, and the rate of genetic mutations.

Yes, organisms that develop similar traits independently due to similar environmental pressures are the result of convergent evolution. This process leads to analogous structures that serve the same function but have different underlying genetic origins. An example is the streamlined bodies of sharks and dolphins, which evolved separately for better aquatic locomotion.

You can doubt evolution and anything else you want. The better question is if you should doubt evolution, or if you can reasonably doubt evolution in light of science.

A lot of aspects concerning evolution are backed by rather sound science. That isn't to say that the theory of evolution explains everything. The earliest textbooks on the topic said that you had to take parts of it by faith. That is no different than believing what religion has to say about it. You do have to ask yourself how to reconcile the laws saying that matter and energy cannot be created nor destroyed with the Big Bang Theory. Since if there was nothing, then you must ask where all the "something" suddenly come from.

Simple prokaryotic organisms, such as bacteria and archaea, are believed to have been the first to develop on Earth due to the harsh early environmental conditions, like the lack of oxygen and extreme temperatures. These organisms were able to thrive in such conditions and are thought to have played a crucial role in shaping the Earth's early environment.

Adaptation in sexual reproduction refers to the processes that enhance an organism's ability to reproduce and pass on its genes to the next generation. This can include traits such as specialized reproductive structures, behaviors to attract mates, and genetic diversity to increase offspring survival. Organisms evolve specific adaptations for successful mating and reproduction in their particular environment.

Scientists now think that the pace of evolutionary change can vary greatly depending on factors such as environmental pressures, population size, and genetic variation. It is understood that evolution can occur rapidly in response to sudden changes in the environment, while in stable conditions, evolution may proceed at a slower pace. Additionally, new research suggests that evolution can also occur in punctuated bursts rather than consistently over time.

Answer: Many, even the majority, who follow Darwinian evolution by natural selection would not agree that there are any myths connected with it. That said, real science, with solid evidence to back it up would produce a number of possible answers to this question:

1. Natural selection does not explain the adding of new genetic information into the genome of organisms that enable the changes that evolution believes happen such as the change from dinosaurs into birds. this has never been demonstrated scientifically. Famous evolutionist Richard Dawkins was asked about this issue some years ago and had no answer, no example of an information adding mutation. So this is one 'natural selection myth.'

2. Another seeming "myth" -Natural selection culls out the sick and the weak -the work done by predators. In fact scientific studies on the 'chase-kill response' in predators shows they prefer to attack healthy individuals. We are here talking about predators such as lions, tigers, cheetahs etc. and their prey. This may be that they are attracted to a chase which is not provided by a sick or weak prey and they may also be wary of disease in weak individuals, which also may not provide a good lot of meat they are after.

3. Another myth (assuming we are talking about the modern evolutionary synthesis which includes mutations) is that mutations actually provide new information -they in fact are shown in modern studies to be degrading the genome. this is particularly shown to be so in humans -probably the most studied of the 'higher organisms". Human geneticists are agreed that the human genome is degrading not getting better, through mutations. This is because by far the majority of mutations are of small effect and so are not 'noticed' by natural selection. This effectively means the human genome is deteriorating like rust accumulates on a car over time.

Phylogenetics is a field of biology that studies the evolutionary relationships among organisms. It uses genetic information to reconstruct evolutionary trees that show how species are related to each other. Phylogenetic analysis helps scientists understand the history of life on Earth, infer common ancestors, and study patterns of biodiversity.

Phylogenetic inertia illustrates the tendency for species to retain ancestral traits over time, even if those traits are no longer advantageous. This concept helps explain why some traits may persist in species even if they have lost their original function or have become maladaptive in a new environment.

The two scientists credited with developing the theory of evolution by natural selection are Charles Darwin and Alfred Russel Wallace. Darwin's "On the Origin of Species" in 1859 and Wallace's independent work culminated in the joint presentation of their findings to the Linnean Society of London in 1858.

Charles Darwin is often credited as the first scientist to propose the theory of evolution through natural selection in his book "On the Origin of Species" published in 1859.