Answer:
Survival of the fittest, term made famous in the fifth edition (published in 1869) of On the Origin of Species by British naturalist Charles Darwin, which suggested that organisms best adjusted to their environment are the most successful in surviving and reproducing. Darwin borrowed the term from English sociologist and philosopher Herbert Spencer, who first used it in his 1864 book Principles of Biology. (Spencer came up with the phrase only after reading Darwin’s work.)
Herbert Spencer's Principles of Biology (1864) first introduced the expression “survival of the fittest.”
Survival of the fittestQUICK FACTSKEY PEOPLEAlfred Russel WallaceHerbert SpencerRELATED TOPICSAdaptationNatural selectionDarwinian fitnessUse in evolutionary theoryDarwin did not consider the process of evolution as the survival of the fittest; he regarded it as survival of the fitter, because the “struggle for existence” (a term he took from English economist and demographer Thomas Malthus) is relative and thus not absolute. Instead, the winners with respect to species within ecosystems could become losers with a change of circumstances. For example, fossil evidence supports the notion that the mammoth (Mammuthus) was more fit during the most recent ice age (which ended roughly 11,700 years ago), but it became less fit as humans hunted it and the world’s climate warmed; fossil evidence suggests that the mammoth succumbed to extinction a few thousand years later.
Darwin’s theory of evolution by natural selection entailed three crucial elements: variation, reproduction, and heritability. Variations in the physical features of organisms that tend to benefit an individual (or a species) in the struggle for existence are preserved and passed on (or selected), because the individuals (or species) that have them tend to survive. The success or failure of a given variation is not known when it emerges; it is known only retrospectively, after organisms that possess it either grow and mature and pass it to their own offspring or fail to mature and reproduce.
Importantly, Darwin was influenced by the thinking of English physicist and mathematician Isaac Newton, whose system emphasized experimentation, mathematics, and logic over subjective sense experience. During Darwin’s time, his evolutionary theory was an attempt to construct a similar system for the living world, a frontier not yet crossed in the biological sciences.
Get a Britannica Premium subscription and gain access to exclusive content.
Some philosophers and scientists have suggested that the notion of survival of the fittest is an example of circular reasoning—that is, a tautology (a statement framed in such a way that it cannot be falsified without inconsistency). In tautologies, any true statements that follow are a matter of definition. Indeed, describing those that survive as the fittest is similar to stating that those that survive survive. British philosopher Karl Popper considered “survival of the fittest” self-evident at first; however, he changed his mind after realizing that Darwin posited variation axiomatically; that is, Darwin noted that all individuals did not start with the same set of characters (or traits). Therefore, the forces affecting survival did not weigh on individuals and species equally; there were always variations, some of which would prove favourable and confer fitness over others.
Explanation:
please give this answer as brainliest answer
What is true about the NUCLEUS of a red blood cell and the NUCLEUS of a nerve cell?
A. The DNA found in a red blood cell nucleus is DIFFERENT from the DNA in a nerve cell nucleus.
B. They have HALF of the DNA as other somatic cells.
C. The DNA found in a red blood cell nucleus is the SAME as the DNA in a nerve cell nucleus.
Answer:
c
Explanation:
every cell have the same dna
Answer:
The answer is C
hope this helps
have a good day :)
Explanation:
1) A specialized function shared by the many cells lining the lungs and the lumen of the gut isA) decreased oxygen demand due to the lack of oxygen in foods.B) increased exchange surface provided by their membranes.C) greater numbers of cell organelles contained within their cytoplasm.D) greater protection due to increased cellular mass.E) lowered basal metabolic rate due to cooperation between cells
Answer:
B) increased exchange surface provided by their membranes
Explanation:
Alveoli are tiny air sacs that are responsible for exchanging oxygen (O2) and carbon dioxide (CO2) in the lungs. Alveoli have elastic fibers in order to expand and recoil depending on the volume of air breathed in. The alveolar epithelial cells (pneumocytes) may adopt a shape that serves to increase the surface area of gas exchange. On the other hand, intestinal epithelial cells have microvilli, which are microscopic projections in the plasma membrane. Microvilli serve to increase the cell's surface area, thereby facilitating the absorption of nutrients and water.
Answer:
B) increased exchange surface provided by their membranes.
Explanation:
The intestine that characterizes by being folded, and by having its walls covered by villi that project into the lumen. They are more concentrated in the first portion of the intestine, decreasing to the final region of the organ. They are involved in nutrients absorption by increasing the absorption area.
Nutrients are absorbed by primary cells and transported to the bloodstream. Mucus is secreted to protect the epithelium during digestion. Villi also transport water from the blood to the intestinal tract, which helps in food decomposition.
Besides the absorption function, the intestine characterizes by doing the peristaltic movement, secretion through special glandules, digestive function, absorptive functions, secretion functions, and endocrine functions.
Animals must have a respiratory membrane to make gas interchange. This surface must be humid, thin, and revested by a simple plane epithelium, plenty of vessels. The membrane must be permeable and exposed for gases to circulate. This membrane might be on the body surface or in specific respiratory organs, such as lugs. The gas exchange occurs by simple diffusion. Oxygen tends to diffuse to the interior of the organisms, while carbon dioxide tends to get out of it.
If you could genetically engineer any species of organism, what would it be? Would it be a unicorn? A
dog-cat hybrid? Your own personal pet giant? Choose any species--real or not--that your imagination
desires!
Write a paragraph describing your species, what it looks like, and where it lives. Think of any inherited
traits the species has that might help it survive in its environment. Thinking of these traits now can help
you come up with allele combinations in the next step. Now describe your species in the answer space.
Answer:
the species I would combine would be a trapdoor spider and a eel yeah its a unusual mix but at the same time it would be interesting to see because image a eel having 8 legs and spider fangs and armored skin it would most likely also be twice the size of a normal eel or even might have a mutation but who knows
The alteration of the natural gene is called genetic engineering. Genetic engineering helps to cure various diseases, these diseases are as follows:-
ADA syndromeRNAi interferenceGenetic engineering help to make the new organism with the crossing of the two new species.
If I had to choose the an organism I would choose CAT as they are very familiar and easy to work on.
The alleles of the different organisms help to make a new character.
For more information, refer to the link:-
https://brainly.com/question/2817451
what find of spider of this kind of spider is this?
Answer:
Fishing Spider
Explanation:
Dolomedes is a genus of large spiders of the family Pisauridae. They are also known as fishing spiders, raft spiders, dock spiders or wharf spiders
Which of the following is definitely true about the kingdom, Protista.
A. They always have a cell wall
B. They always have a nucleus
C. They are always unicellular
D. They are always heterotrophs
Answer:
B. They always have a nucleus
Explanation:
The organisms belonging to kingdom Protista are single-celled- means they are unicellular and they have a well-defined nucleus enclosed in a nuclear membrane. Hence, they are eukaryotes. So the correct option is B.
Answer:
B. They always have a nucleus
Explanation:
Protista always has a nucleus. So, option (B) is the correct answer.
Mitosis makes.....
A. cell phones
B. identical body cells
C. sperm and egg cells
B. identical body cells
hope it is helpful to you
Answer:
B. identical body cells
Explanation:
Mitosis produces new cells, and replaces cells that are old, lost or damaged. In mitosis a cell divides to form two identical daughter cells. ... Mitosis separates these chromatids, so that each new cell has a copy of every chromosome.
Why is it that we use the two-name binomial nomenclature invented by Carl Linneaus still to this day?
A. Because mountain lions and pumas are actually very different animals.
B. Because the system is widely accepted and used all over the world universally.
C. Because everybody knows how to speak Latin and Greek.
D. Because Carl Linneaus was just that important.
Answer:
B. Because the system is widely accepted and used all over the world universally.
Explanation:
In contrast to earlier names that were made up of diagnostic phrases, binomial names (or “trivial” names, as Linnaeus himself called them) conferred no bias about the quality or value of plant species named. Rather, they served as labels by which a species could be universally addressed.
Answer:
B. Because the system is widely accepted and used all over the world universally.
Explanation:
We use the two-name binomial nomenclature invented by Carl Linneaus still to this day because, the system is widely accepted and used all over the world universally.
What’s an opinion you have about genetic testing?
Answer:
Genetic testing is useful in many areas of medicine and can change the medical care you or your family member receives. For example, genetic testing can provide a diagnosis for a genetic condition such as Fragile X or information about your risk to develop cancer. There are many different kinds of genetic tests
What is the difference between gene mutations and chromosome mutations?
A. Gene mutations are preventable and chromosome mutations are not
B. Gene mutations can happen easily and chromosome mutations are more difficult
C. Gene mutations only affect one gene while chromosome mutations affect many genes
Answer:
C. Gene mutations only affect one gene while chromosome mutations affect many genes.
Explanation:
The difference is that the gene mutations only affect one gene while chromosome mutations affect many genes.
Name the site of erythropoiesis in adults
Answer:
Explanation:As stated above, in adults the principal sites of red cell production, called erythropoiesis, are the marrow spaces of the vertebrae, ribs, breastbone, and pelvis.
What are 3 environmental factors in the natural reserve that affect which mice in a population survive to produce
draw any two microbes
In the attachment are some examples:
What will you have in 500 years????
Answer: You Palpatine, I'd still have you.
Explanation:
Joyce and Linda are identical twins who are 50 years old and enjoy exercising daily. Joyce avoids eating any dairy or animal products and eats granola made with canola oil for breakfast. Linda prefers rich foods, and eats bacon, eggs, and buttered toast each morning. Which statement describes a logical inference that can be made from the provided information?
Butter has higher levels of saturated fats in it than canola oil.
Linda and Joyce both have high levels of “bad” cholesterol.
Butter contains a small amount of polyunsaturated fats.
Linda has a higher level of “bad” cholesterol than Joyce.
Answer:
Linda has a higher level of “bad” cholesterol than Joyce.
Explanation:
Answer:
B
Explanation:
Red-green color blindness is an X-linked recessive disorder that is passed through generations and can be traced by using a pedigree.
A pedigree is shown. Sam, Bella, Joshua, and Tim have filled-in shapes. Lisa and Monica have half-filled shapes.
Which individuals in the pedigree are identified and labeled carriers for red-green color blindness?
Lisa and Monica
Sam, Tim, Bella, and Joshua
Ben, Jenny, Mike, Carol, Katie, and Chris
Ben and Lisa
Answer:
Lisa and monica
Explanation:
just took the test :))
What does stage 4 show?
A. A young female cone with fertilized eggs matures into a seed
cone.
B. A spore divides and grows into a pollen grain using mitosis.
C. Young male cones produce spores using meiosis.
D. A seed that contains an embryo plant grows into a young pine
tree.
Answer:
A.
Explanation:
It looks like the pine cone looks like is turning into a normal cone. That is why.
Answer: A. it looks as if its matured from being a young cone
Luminosity has do with brightness of a star. It's essentially the power of the star, or how light is being emitted from the surface. About how much brighter is Antares than the Sun
Dar tres ejemplos de alimentos con funcion estructural,tres ejemplos de alimentos con funcion energetica y tres ejemplos con funcion reguladora
Answer:
Alimentos plásticos o constructores: En este grupo se encuentran: Leche, yogurt y quesos. Carnes, pescados y huevos.
Función reguladora:todo tipo de frutas, como manzana, naranja, mandarina al igual que las espinacas, acelgas .
alimentos energéticos, pastas, arroz, productos de panificación (pan, galletas, etc.), dulces, miel, aceites, frutos secas (almendras, nueces, castañas ,
Explanation:
water is warmers by the sun and ?
Answer:and then it evaporates into the atmosphere
Explanation:
BIO HELP 5 POINTS
The Miller-Urey Experiment:
1) attempted to prove that life on other planets existed.
2) disproved the notion of spontaneous generation.
3) simulated the atmospheric conditions of early Earth.
4) proved that gases could evolve in certain conditions from early rocks
Answer:
2
Explanation:
i think 99.9 percent sure trust me
Which is an example of why the process of photosynthesis is important to life on Earth?
Answer:
Green plants and trees use photosynthesis to make food from sunlight, carbon dioxide and water in the atmosphere: It is their primary source of energy. The importance of photosynthesis in our life is the oxygen it produces. Without photosynthesis there would be little to no oxygen on the planet.
In an energy pyramid, up to 10% of energy is transferred between trophic levels. Suppose the producer level has 50,000 J. Approximately how much energy is available to the next level, the primary consumer, in this energy pyramid?
Answer: 5,000
Explanation:So it is the 10% law, this is an example 10,000 for the first animal, 1,000 for the second and 100 for the third. So for 50,000 it would be 5,000 for the next
What are substances that make the plant body erect?
Answer:
The root system, which supports the plants and absorbs water and minerals, is usually underground. The organ systems of a typical plant are illustrated below. The shoot system of a plant consists of leaves, stems, flowers, and fruits. The root system anchors the plant while absorbing water and minerals from the soil.
3 things that you learned about Particle Theory and Wave Theory of Light
Because it is ______ , fermentation _______ oxygen.
Answers:
aerobic/requires
anaerobic/requires
aerobic/does not require
anaerobic/does not require
Answer:
anaerobic/does not require
Explanation:
anaerobic occurs in the absence of oxygenWhich example below is a concern related to nuclear energy?
long-term storage of waste
supplemental energy may be needed if weather is not ideal for energy collection
can be unsightly and/or noisy
potential for floods
Answer:
C. can be unsightly and/or noisy
Explanation:
Answers A, B, and D correspond with fossil fuels (fracking, coal/gas mines), wind/environmentally-powered energy (turbines), and hydroelectric power (dams).
"Noisy" and "unsightly" are the most accurate descriptions of the nuclear energy process.
If this helped you, I'd appreciate Brainliest! <3 TYWhy did Gregor Mendel use peas in his experiments?
Peas grow very slowly.
Pea reproduction cannot be controlled.
Peas normally produce very few offspring.
Peas have characteristics that have two forms.
Answer: Peas have characteristics that have two forms
Explanation: He chose peas because they had been used for similar studies, are easy to grow and can be sown each year. Pea flowers contain both male and female parts, called stamen and stigma, and usually self-pollinate. Self-pollination happens before the flowers open, so progeny are produced from a single plant.
Peas having characteristics that have two forms is the reason they were
used by Gregor Mendel
Who was Gregor Mendel?He was a biologist and is regarded s the father of modern genetics. He
performed various experiments using pea plants.
The reason why the pea plants was used by him was as result of it having
characterisitics in two forms such as smooth and wrinkled etc.
Read more about Gregor Mendel here https://brainly.com/question/1675246
Read the article and use the information to answer the following questions.
Cystic Fibrosis
List four symptoms associated with cystic fibrosis.
Answer:
so hope it helps i think.
Explanation:
Chronic coughing.
Recurring chest colds.
Wheezing or shortness of breath.
Frequent sinus infections.
Very salty-tasting skin.
Answer: person above is correct
Explanation:
What's the differences between species richness management approach and indicator species management way?
Answer:
Both have different function.
Explanation:
The main difference between species richness management approach and indicator species management way is that in species richness management we perform activities that allows increase in the population of species while on the other hand, indicator species are the organisms that provides information about the environment that is present in that ecosystem. Both has differences in their functions and their actions.
Which of these can lead to the extinction of a species?
Plz help
Answer:
Explanation:
It would be A because if you lost your home they will be killed by predictors