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Evolution
The scientific theory according to which populations change gradually through a process of natural selection.
5,264 Questions
Explanation of evolution of a gas?
Gas is not alive and cannot evolve.
If you mean Gasoline, it is made of hydrocarbons found in crude oil found in the earth's crust. This came to be after plant matter decomposed and was crushed under immense heat and pressure over millions of years underground.
Gas is a state of matter like liquid or solid. Atoms that are hot enough to break the bonds holding them together become gaseous.
The evolution of a gas refers to the process by which a gas is produced or released, often through chemical reactions or changes in temperature and pressure. This can happen in various natural or industrial processes, such as the release of oxygen during photosynthesis or the production of carbon dioxide in combustion reactions.
What is the snow leopard's competitive exclusion?
Snow leopards are apex predators in their ecosystem, meaning they have few natural predators. Their main competitive exclusion may come from other large predators like tigers or wolves that share their habitat and compete for similar prey resources. However, due to their elusive nature and specialized hunting techniques, snow leopards have evolved to coexist with other predators in their range.
Gamma diversity (γ-diversity) is a measure of biodiversity. It refers to the total biodiversity over a large area or region. It is the total of α and β diversity. According to Whittaker (1972), gamma diversity is the richness in species of a range of habitats in a geographic area (e.g.,a landscape, an island) and it is consequent on the alpha diversity of the individual communities and the range of differentiation or beta diversity among them. Like alpha diversity, it is a quality which simply has magnitude, not direction and can be represented by a single number (a scalar). The internal relationship between alpha, beta and gamma diversity can be represented as
β = γ / α
Which has more volume -- a kilogram of gold or a kilogram of aluminum?
A kilogram of gold and a kilogram of aluminum have the same volume because they both weigh the same. Density is the property that determines how much space a substance occupies for a given mass, and because gold is denser than aluminum, a smaller volume of gold will weigh the same as aluminum.
What does the microscope rest on?
In compound microscopes for use for viewing thin sections at high power, specimens are mounted on a microscope slide and covered with a coverslip and are placed on the microscope stage or base plate. In stereomicroscopes the same is done however for large objects such as rocks or minerals no microscope slide is required the object to be observed is placed directly on the stage.
What is the relationship between speciation and adaptive radiation?
Adaptive radiation is a rapid form of speciation that takes place when there is a mass immigration to new ecological niches, or a mass extinction of one dominant life form opening up niches for other life forms. Darwin's finches are examples of the former, as they reached the Galapagos Islands as one species and radiated from there into many different species of birds make there living in various ways that called for morphological changes, basically in beak size and shape. The death of the dinosaurs is an example of the latter radiation event. That is when several types of small mammals radiated out into all the niches left open bu the dinosaurs.
What animal has DNA in their blood?
DNA (deoxyribonucleic acid) is found in all living things (note though that viruses may contain RNA instead, it is not yet decided as to whether viruses are living or non living). Blood is a complex of red blood cells, white blood cells, and a straw coloured fluid. It is the blood cells that contain DNA as DNA is found in every cell of the body.
What theory of evolution did lamarck develop in 1809?
Jean Lamarck's theory of evolution is known as zoological philosophy or the inheritance of acquired characteristics, and stated that changes to an organisms phenotype (basically what it looks like) will cause changes to it's genotype (DNA). This has been disproved of by modern scientists, with natural selection as the main theory.
How are roses adapted to it's environment?
thorns for protection, bright colours to attract insects for polinization, nectar as an incentive for insects to unintentionally help with reproduction, shape of the flower to guide insect to nectar (and pollen)
Who proposed chemical evolution?
The concept of chemical evolution was proposed by Russian biochemist Alexander Oparin in the 1920s. Oparin suggested that life on Earth evolved from simple organic compounds through a series of chemical reactions in a reducing atmosphere.
The term spontaneous generation means?
Spontaneous generation is a disproven theory that life and living organisms can arise from non-living matter. It was once believed that certain conditions could lead to the sudden generation of life, but this idea has been replaced by the principle of biogenesis, which states that living organisms only come from other living organisms.
The Industrial Revolution and the Technology Age have led to increased human population, urbanization, and environmental degradation through pollution and resource exploitation. These changes could have long-term consequences on biodiversity, ecosystems, and climate, potentially altering the course of evolution for many species on Earth. Adaptation to these changing environments may become a key factor influencing the evolution of life on our planet.
How can evolution explain both the unity and diversity of life?
Simple. All of the millions of different life forms (the diversity of life) have come about by natural selection, whereby random mutations in the genes have either succeeded or failed. But all life can be traced back to a common single-celled origin. Thus we have the unity of life where we (possibly) share more than 50 % of our DNA with a crocodile.eg:analogous organs,homologous organs
How does the Tree of life help explain both the unity and diversity of life?
The tree of life would show unity due to the fact that all modern life probably originated from common ancestors (the further back you go, the more closely related we are), while the diversity is shown by the fact that while we are all related, life has branched off in very radical ways over the millenia.
Fish were the first chordates (organisms with a spinal cord), and also the first vertebrates (organisms with a spinal column). Developing a spinal cord gave them an advantage over their arthropod enemies, because they could swim faster and were much more agile.
It is difficult to say exactly when the first fish evolved or which was the first fish, but we do know that the earliest fish evolved between 400-500 million years ago. They were jawless, with gills and scales but no fins. Eventually fish greatly diversified and occupied almost every water environment. They developed fins and a strong tail to help them swim better. They were also the first animals to develop jaws and teeth, enabling them to eat other animals.
The following lists the possible evolution of the fish over time:
About 460 to 480 million years ago: The first jawless fish evolve. (It's worth noting here that this starting point is hotly debated in the scientific community.)
About 450 million years ago: The first jawed fish emerges.
About 390 million years ago: The ancestors of the bony fish evolve.
About 380 million years ago: The first shark-like fish evolves.
About 360 million years ago: The early offshoots of the bony fish (Osteichthyes) evolve into the first amphibians (intermediates between fish and reptiles).
About 175 million years ago: The first true bony fish emerge.
Between 190 and 135 million years ago: The first modern sharks evolve.
If man is a product of evolution does it follow that the human soul is included in such evolution?
It does not follow logically. It requires an assumption of the existence of soul.
Another answer:
Man isn't a product of evolution so therefore the human soul isn't included in such an evolution.
Another answer:
Man is a product of evolution and the soul does not exist.
Another answer:
I believe that Man has a soul. Evolution may explain some things (like the evolution of some species), but not everything. Nowadays more and more evidence show that evolution theory may be only part of the explanation of our existence. For example there is no way to explain altruism in the context of a 'survival of the fittest' theory (see other 'Evolution'-related questions for more on that). Art and various feelings are not explained by evolution theory. In that way the human soul is probably not just a product of evolution.
Another answer:
One vote for evolution and no soul. There are over 2,500 religions on this planet, and most will kill the other to prove a point, what kind of religion is that? More people have been killed in the name of a religion than for any other reason - i.e.: Iraq War is a great example, and the Twin Towers were taken out in the name of their religion being better than ours.... Einstein was once asked what he would change if he could. He said that he would never have completed the nuclear fusion calculations that put the final bomb together, and he said that he wished that religion had never been invented. Unless you're smarter than Albert Einstein, I go with him - no soul.
Answer/
No. Evolution is corporeal in nature and the soul is empyreal in nature. That finding determines in logical terms that the soul of man requires the genome of man for it to enter.
It determines that at the genealogical cusp where the genome has evolved into an enlightened creature at its conception, i.e. - genes are triggered for our branch that is distinct from the former branch of unenlightened creatures - the soul enters the genome according to its matching empyreal nature.
That is found in nature - according to the soul, is the creature, Mankind never was created an animal, an animal was never created a man, as described in ethereal terms found in genesis Scriptures.
How did Evolution in fruit habit of gymnosperm?
Evolution in fruit habit of gymnosperms occurred through the development of structures such as cones and seeds to protect and aid in the dispersal of their reproductive materials. Over time, natural selection favored those gymnosperms with more effective fruit structures, leading to the diverse array of fruit habits seen in gymnosperms today.
Which countries celebrate their independence day on 15th August?
India, Korea North, Korea South, Democratic Republic of Congo and Bahrain.
What was the belief in evolution called in the 1700s?
The belief in evolution in the 1700s was known as transformism or the theory of transmutation. This idea suggested that species could change over time, long before Charles Darwin's theory of evolution by natural selection gained prominence.
What is the meaning of organelles?
An organelle is a structure found within the cytoplasm of a plant or animal cell - in other words they are discrete sub-cellular components with specific functions
The following organelles are found in eukaryotic, not prokaryotic, cells:
- Nucleus
- Mitochondria
- Chloroplast (plant cells only)
One sperm cell must find the egg cell (oocyte) and penetrate the cell membrane. Only the head gets in. It (consisting almost entirely of DNA) is drawn to the nucleus of the egg cell where the chromosomes match and mix.
What is the hierarchy of complexity?
The hierarchy of complexity refers to how systems are organized based on their level of complexity. It typically ranges from simple systems with few components to complex systems with many interacting parts. In this hierarchy, systems are classified based on the number of elements, interactions, and emergent properties they possess.
Basically Charles Darwin came up with 4 needed characteristics that allows animals/plants to evolve. While studying in the Galapagos Islands he realized for a specific species to evolve they need:
1) To be isolated (on different continents or by water)
2) Reproduction has to be involved (takes many trial and errors)
3) Natural Selection has to occur (the fittest survive the weakest die...like giraffes and long necks if having a long neck to reach the high leaves in trees is needed they'll survive while the shorter neck giraffes die)
4) Have to correctly be fitted sexually (same number of gametes)
In this case probably it was a salmander that eventually became isolated by water therefore primarily not using any limbs and they kept reproducing while the ones with the longer legs lives became harder to survive from predators. The interesting observation is that several species have developed the limbless response to environmental conditions. Reptiles evolved to become snakes and both lizards and salamanders also developed this trait. Other animals which gave op limbs for increased mobility include whales and dolphins (limbless mammals) and ichthyosaurs (limbless reptiles) which evolved from limbed animals to emulate fish.
