Evolution

The scientific method uses observation and experimentation to answer questions. By conducting experiments and analyzing the results, scientists can make informed conclusions and gather evidence to support their hypotheses.

Eugenics is a set of beliefs and practices aimed at improving the genetic quality of a human population through selective breeding and controlling reproduction. It has been widely discredited and condemned due to its association with unethical practices like forced sterilization and discrimination against marginalized groups.

Reproductive isolation through sexual selection is often an important factor in speciation. This type of natural selection can lead to the evolution of reproductive barriers that prevent individuals from different populations from successfully interbreeding, ultimately resulting in the formation of distinct species.

Without men on Earth, the population would decrease significantly since they contribute to reproduction. There would also be shifts in social structures, workforce dynamics, and cultural norms as the absence of men would require adjustments in various aspects of society. Ultimately, the impact would depend on how society chooses to adapt to the new circumstances.

Eyes are easy. Just look at all the intermediates. From eye spots to cup eyes past pinhole eyes all the way to camera eyes. This progression easily shows the concept of descent with modification.

It's called convergent evolution. Where two species that are separated by a barrier evolve similar structures or behaviors. This is because they most likely live in similar environments that cause them to adapt similar features to survive in that particular environment.

Changes within a gene pool occurring from generation to generation is called microevolution.

Allele frequencies in a population may change due to gene flow, genetic drift, natural selection and mutation. These are referred to as the four fundamental forces of evolution.

Only mutation can create new genetic variation...the other three forces simply rearrange this variation within and among populations.

1. Geographic isolation, such as a physical barrier separating populations, can prevent gene flow and lead to genetic divergence over time.
2. Genetic mutations can accumulate in isolated populations, creating genetic differences that can eventually prevent interbreeding with the original population.
3. Natural selection can favor different traits in isolated populations, leading to the evolution of distinct adaptations.
4. Reproductive isolation mechanisms, such as changes in mating behaviors or physical incompatibilities, can prevent successful mating between populations.
5. Time is a critical factor, as gradual accumulation of genetic and phenotypic differences through generations is necessary for the complete divergence of a new species.

According to the theory of punctuated equilibrium, species tend to remain in a stable state for long periods of time (stasis), with rapid bursts of evolutionary change occurring over short periods in response to environmental pressures. This contrasts with the traditional view of gradual, continuous evolution. The theory suggests that speciation events are concentrated in these rapid bursts of change, leading to the creation of new species.

The two main goals of all organisms are survival and reproduction. Organisms strive to survive by obtaining nutrients, avoiding predators, and adapting to their environment. Reproduction ensures the continuation of their species by passing on their genetic material to offspring.

The existence of intermediate forms supports the theory of evolution. These transitional forms provide evidence of how species have evolved over time through gradual changes and adaptations. They demonstrate the idea of common ancestry and the gradual development of new species from ancestral ones.

Evolution simply means change. There is no target or goal or end of the line; there is no "forward" or "backward", only "towards more suitable" and "away from more suitable".

Humans are doing neither. We adapt our environment to us, not the other way around.

Convergent evolution is the type of evolution in which unrelated organisms independently evolve similarities when adapting to similar environments. This can result in different species developing similar traits or characteristics as a result of facing similar selective pressures.

All species are evolved. Some species ( bacteria, for instance ) have a horizontal transfer of genetic material along with simple cell division. Most other organisms, sexual reproducers, have a vertical transmission of genetic material.

The theory of evolution by natural selection. Evolution is a fact and the theory of evolution by natural selection explains much of this fact.

My question to you. Which " theory " of divine creation do you mean?

Regardless.

There is no evidence for any of the myriad divine creation stories ( they are not theories in the scientific sense ). The theory of evolution by natural selection has a plethora of converging evidence lines supporting it. Read many of them here.

Convergent evolution is the form of evolution where different organisms independently evolve similar traits due to similar environmental pressures, even though they are not closely related. This can result in species that appear and behave similarly despite not sharing a recent common ancestor.

These large scale evolutionary changes that take place over long periods of time are called macroevolution. It involves the evolution of species over geological time scales, leading to the formation of new species and higher taxonomic groups.

The unscrambled word is "evolution."

Because it is an internally consistent explanation of a mechanism of evolution that is supported by many lines of converging evidence, that has been repeatedly tested and is capable of making testable predictions.

Pretty much the scientific definition of theory.

Evolution is quite easy in a lab. All you need is some bacteria and something that those bacteria are killed by. Add a small amount of each to a clean slide, and you can watch as the population declines - as weaker members die - before growing again - as the stronger ones reproduce.

Now add more of the toxic chemical, and repeat the experiment. Keep going, and eventually you get a population that not only survives in the toxin, but thrives in it.

Gradual changes in species over time is known as evolution. This is a process where populations of organisms change over generations as a result of genetic variation, natural selection, and adaptations to their environment. Over time, these changes can lead to the formation of new species.

In every organism, there are differences between individuals. For example, hair color in humans. Bacteria and viruses, being so small, mutate much quicker than humans. One of the individual traits of a virus or bacteria can be resistance to a drug or antibiotic. So as the drug is used, the organisms without the resistance die off while the resistant individuals live. The resistant individuals reproduce, and pass on this resistance to their offspring. Thus, the population increases once again, but this time, all the organisms have the resistance. This is shown clearly with the antibiotics we use, which only stay effective for fighting diseases for 20 to 60 years. After this time, most of the bacteria has mutated to be resistant to the antibiotic, and so will no longer be killed by it.

One new line of evidence supporting evolution that scientists learned after Darwin's book was published is the discovery of DNA and the understanding of how genetic information is passed down from one generation to the next. DNA sequencing has provided clear evidence of the relatedness of different species and how they have evolved over time.

All living things:

1) Are made up of cells

2) Reacts to stimuli

3) Maintains homeostasis (internal environment) and obtain/produce energy

4) Have the ability to reproduce

5) Are able to grow

5) Is able to adapt to environment (evolve over generations)

An evolutionary biologist studies the processes by which species change over time through genetic mutations, natural selection, and other mechanisms of evolution. They may conduct research to understand patterns of biodiversity, speciation, and adaptation in organisms. Their work helps shed light on how life has evolved and diversified on Earth.