explain what natural selection is and how it occurs
Answers
Answer:
Natural selection is when an animal adapts to their environment to survive and produces more offspring. It occurs when the animal isn’t thriving in their environment and they make adaptions to where they can survive.
Explanation:
An example of natural selection is, a bird used to have a really thick and short beak. But to have more access to food they adapted to their environment and now have a long and skinny beak.
Hope this helps :)
Related Questions
why do you believe the story of sally hemmings was ignored for so many years until irrefutable dna evidence stopped the debate
Answers
Years before incontrovertible DNA proof put an end to the controversy, the Hemings and Carr descendants' DNA testing revealed no genetic connection.
What makes you think that Madison Hemings' claims were disregarded?To preserve the President's good name, Madison Hemings' claims were disregarded. It should be noted that since neither Jefferson nor Sally had acknowledged the allegations regarding their relationship, there was little proof to support the information provided by Madison Hemings.
How did Thomas Jefferson and Sally Hemings interact?Prior to her return to Monticello with him in 1789, when Hemings and Jefferson are thought to have had a connection. The majority of historians generally concur that Jefferson had six children with Hemings during the course of this relationship, which lasted for nearly four decades, up until his death.
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Which of the following foods will digest most completely in this system?
Answers
Poop
we appear to be solid but which of the following components is critical for all living things
A. gases
B. rich soil
C. water
D. transpiration
Answers
Answer:
Explanation:
Water
Hertzsprung diagram the star is experiencing nuclear fusion at its core
Answers
The matchup based on the image of the question (Hertzsprung diagram) attached is given below:
Sirius B- The star can no longer support nuclear fusion because it has exhausted its supply of hydrogen.
Betelgeuse- The star's hydrogen supply is running low, so it is fusing hydrogen from outside the core.
The Sun- The star is experiencing nuclear fusion at its core.
What is Russell-Hertzsprung Diagram?Size, age, hue (which is influenced by temperature), and luminosity are all variables in stars (brightness). A Hertzsprung-Russell diagram can be used to plot the brightness and hue of stars (or H-R diagram).
Nearly all of the stars are concentrated in a region that stretches from the upper-left (which is bright and hot) to the lower-right, as shown on this screen (dim and cool). These actors make up the primary cast. Because the main sequence is the stage of a star's life that lasts the longest, more than 90% of the stars in the cosmos are main sequence stars.
Therefore, The brightest star in the night sky is Sirius. Its name comes from the Greek letter o, or Seirios, which is translated as "glowing" or "scorching."
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Which of the following best describes how amino acids affect the tertiary structure of a protein
Answers
Answer:
B. The interactions of the different R group with other R groups and with their environment determine the tertiary structure of the protein
Explanation:
Protein is one of the four major biomolecules in living systems. Structurally, proteins consists of four levels namely: primary, secondary, tertiary and quartenary. The primary structure constitutes the AMINO ACIDS monomer that makes up the protein.
According to this question, the tertiary structure of the protein is formed as a result of the interaction of different R groups with one another and their environment. The R group is one of the four parts of the amino acid structure which is different for all amino acids.
These R groups interact in such a way that forms different bonds such as hydrogen bonds, disulphide bridges, hydrophobic & hydrophilic interactions etc, which leads to the tertiary structure of proteins (three-dimensional shape).
Answer:
B. The interactions of the different R -groups with other R -groups and with their environment determine the tertiary structure of the protein.
Explanation:
The process by which plants capture light energy and use it to synthesize glucose and other organic molecules is called.
Answers
The process by which plants capture light energy and use it to synthesize glucose and other organic molecules is called photosynthesis.
What is photosynthesis?Photosynthesis is defined as the process through which plants convert carbon dioxide, water, and sunshine into oxygen and sugar for energy.
It is defined as a mechanism by which phototrophs transform light energy into chemical energy, which is subsequently used to power cellular processes.
It can also be defined as a method used by plants and other living things to change light energy into chemical energy that can then be released through cellular respiration to power the organism's activities.
It is important because photosynthesis is the method used by plants to convert carbon dioxide into oxygen with the help of sunlight, it is crucial.
Thus, the process by which plants capture light energy and use it to synthesize glucose and other organic molecules is called photosynthesis.
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Please help me! Please show the work!
Answers
Answer:
7. 1800cm
8. 0.023
9. 50mm
10. 530,000
Explanation:
7.
18 x 100= 1800
8.
23÷1000= 0.023
9.
5 x 10= 50
10.
5.3 x 10,000= 530,000
Hopefully this helps you a little bit
Which of the following is not one of the objectives of the Human Genome Project? Select one: a. Clone human beings. b. Determine the complete DNA sequence of each human chromosome. c. Determine the sequence of all human genes by cDNA cloning and sequencing. d. Create a detailed genetic map of every human chromosome, with an average of 2-5% recombination frequency between markers. e. Obtain a detailed physical map of every human chromosome, based on overlapping recombinant DNA molecules cloned as yeast artificial chromosomes.
Answers
The objective that is not part of the Human Genome Project is **a. Clone human beings**.
The Human Genome Project (HGP) was an international scientific research project aimed at understanding the human genetic blueprint. Its main goals included determining the complete DNA sequence of each human chromosome, creating detailed genetic and physical maps of every human chromosome, and identifying all human genes through cDNA cloning and sequencing. Cloning human beings was not a part of this project, as the focus was on understanding the genetic information rather than creating copies of humans. The knowledge gained from the HGP has been invaluable in advancing medical and genetic research, and has led to significant improvements in diagnosing, treating, and preventing diseases.
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ONLY ONE ANSWER!!!
Which challenge arises from trying to protect the environment?
high clean-energy startup costs
less access to clean water
lower taxes for citizens
more land availabte for farming
Answers
Answer:
high clean-energy startup costs
Explanation:
Protecting the environment means improving its sustainability and reducing pollution to the barest minimal. This utterly means terminating every activity that contributes to pollution in the environment, including the source of energy. The most widely used source of energy is the non-renewable source e.g. coal, fuel, etc.
These source of energy, however, release pollutants in form of greenhouse gases, into the environment. One way to eliminate the use of non-renewable source of energy is to adopt the use of renewable sources e.g. solar energy, wind etc. However, one major setback to doing this is the high production cost involved.
Although these sources of energy (renewable) are referred to as green or clean, but they have really expensive startup costs and are unaffordable most times.
Answer:
high clean-energy startup costs
Explanation:
took the test
Know Mendel's three principles
Answers
Answer:
Law of Dominance and Uniformity
Law of Segregation
Law of Independent Assortment
The process of only the fittest Individuals surviving environmental changes is
Answers
Answer:
"Survival of the fittest" is a popular term that refers to the process of natural selection, a mechanism that drives evolutionary change. Natural selection works by giving individuals who are better adapted to a given set of environmental conditions an advantage over those that are not as well adapted.
Explanation:
how does the size of an island generally affect its biodiversity, and why? group of answer choices the size of an island does not affect diversity, as it has been shown in many studies that only the distance between an island and a continent affects its biodiversity. larger islands tend to have lower diversity than smaller islands because larger islands usually support larger populations of predators. larger islands tend to have higher diversity than smaller islands because larger islands usually have more space for a higher diversity of habitats. larger islands tend to have higher diversity than smaller islands because larger islands are often found closer to continents. larger islands tend to have lower diversity than smaller islands because larger islands are often found farther from continents.
Answers
This is because larger islands typically offer a greater variety of habitats, such as different types of forests, grasslands, wetlands, and coastal areas, which can support a wider range of species.
C. Larger islands tend to have higher diversity than smaller islands because larger islands usually have more space for a higher diversity of habitats.
Larger islands also tend to have more diverse microhabitats, such as niches and microclimates, which can further contribute to higher biodiversity. Additionally, larger islands may have less edge effects, which are changes in environmental conditions along the edges of habitats, compared to smaller islands, resulting in more stable and diverse ecosystems. Overall, the larger size of an island can provide more ecological opportunities for different species to thrive, leading to higher biodiversity.
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Complete Question
How does the size of an island generally affect its biodiversity, and why?
A. The size of an island does not affect diversity, as it has been shown in many studies that only the distance between an island and a continent affects its biodiversity.
B. Larger islands tend to have lower diversity than smaller islands because larger islands usually support larger populations of predators.
C. Larger islands tend to have higher diversity than smaller islands because larger islands usually have more space for a higher diversity of habitats.
D. Larger islands tend to have higher diversity than smaller islands because larger islands are often found closer to continents.
E. Larger islands tend to have lower diversity than smaller islands because larger islands are often found farther from continents.
What often results in a woodland frequently by fire?
Answers
Answer:
A predominance of pine trees
Explanation:
Usually pine trees become a target of fire and can overcome the soil that has been a exposed to fire. Hence, in a woodland that has been frequented by fire, there is growth of pine trees rather than other trees/plants.
Answer: A predominance of pine trees
Explanation:
describe the different types of evidence for biological evolution. choose two specific pieces of evidence, such as fossil record or molecular biology, and explain how they provide insights into the evolutionary history of species.
Answers
The fossil record offers a direct glimpse into the past by providing physical evidence of extinct species and transitional forms, allowing scientists to reconstruct evolutionary lineages.
The theory of biological evolution is supported by multiple lines of evidence from various scientific disciplines. Two specific pieces of evidence that provide insights into the evolutionary history of species are the fossil record and molecular biology.
1) Fossil Record: Fossils are preserved remnants or traces of past organisms found in rocks or sedimentary layers. The fossil record provides a tangible record of life's history on Earth and offers valuable insights into the evolution of species over time. Fossils reveal the presence of extinct species and the transitional forms that connect different groups of organisms.
By examining fossils, scientists can observe changes in anatomical structures, the appearance of new traits, and the succession of species through time. This data helps reconstruct the evolutionary relationships between different species and provides a timeline of their emergence and diversification.
2) Molecular Biology: Molecular biology, particularly DNA sequencing and analysis, has revolutionized our understanding of evolutionary relationships. Comparing the DNA or protein sequences of different species allows scientists to infer their relatedness and construct phylogenetic trees. Through techniques like DNA sequencing, researchers can identify genetic similarities and differences between species, providing evidence for common ancestry.
Molecular data can reveal genetic changes, such as mutations or genetic markers, that occurred over evolutionary time. This information helps trace the evolutionary history of species, determine their genetic relationships, and shed light on the mechanisms driving evolutionary changes.
In summary, the fossil record offers a direct glimpse into the past by providing physical evidence of extinct species and transitional forms, allowing scientists to reconstruct evolutionary lineages. Molecular biology, on the other hand, allows for the examination of genetic material and enables the comparison of DNA or protein sequences, revealing evolutionary relationships and genetic changes.
Together, these two pieces of evidence contribute to our understanding of biological evolution by providing complementary insights into the history and relatedness of species.
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[100 PTS] Name one controversy that has resulted from the Human Genome Project. Using college level writing, make a logical argument for one side of the controversy, then make a logical argument for the other side.
Answers
Answer:
One controversy that has resulted from the Human Genome Project is the ethics of genetic engineering and whether it should be used to create so-called "designer babies." Proponents of genetic engineering argue that it has the potential to eliminate genetic disorders and diseases, and that it could improve the overall health and well-being of future generations. For example, parents could use genetic engineering to ensure that their children have a lower risk of developing conditions like diabetes or heart disease.
On the other hand, opponents of genetic engineering argue that it could lead to a number of social and ethical problems. For instance, some people worry that genetic engineering could be used to create a society of genetically superior individuals, leading to inequality and discrimination. Additionally, opponents argue that we do not yet fully understand the potential risks and long-term effects of genetic engineering, and that we should therefore proceed with caution. They also raise concerns about the potential misuse of genetic engineering, such as using it to create individuals with enhanced physical or intellectual abilities for military or other nefarious purposes.
In conclusion, while genetic engineering has the potential to bring many benefits, there are also valid concerns about its potential consequences. It is important for society to carefully consider these issues and to proceed with caution.
Explanation:
What is biodiversity?
Answers
Answer:
Biodiversity is the biological variety and variability of life on Earth. Biodiversity is a measure of variation at the genetic, species, and ecosystem level. Terrestrial biodiversity is usually greater near the equator, which is the result of the warm climate and high primary productivity.
Explanation:
Theres really no explanation.
True or false: the first version of the Fundamental Theorem of Calculus gives us a new way to create new functions from old ones.
Answers
True. The first version of the Fundamental Theorem of Calculus provides us with a way to create new functions from old ones.
It states that if we have a function f(x) that is continuous on an interval [a, b], and we define a new function F(x) as the integral of f(x) from a to x, then F(x) is an antiderivative of f(x) on the interval [a, b]. In other words, F(x) is a new function that is related to f(x) in a specific way, and it allows us to find the area under the curve of f(x) on the interval [a, b]. This result is important because it allows us to compute definite integrals by finding antiderivatives, which can be easier to do than directly calculating the integral. Moreover, it enables us to solve a wide range of problems in science, engineering, economics, and other fields, where the accumulation of small changes over time is a crucial concept. Overall, the first version of the Fundamental Theorem of Calculus provides us with a powerful tool for creating and manipulating functions, and it plays a central role in calculus and its applications.
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what two components are found as part of an enzyme?
Answers
5. Compare the eukaryotic cell cycle to a human life cycle. How are they similar? How are they
different?
Answers
The eukaryotic cell cycle and the human life cycle have some similarities and differences.
Similarities:
Both involve a sequence of events that occur in a specific order.Both involve phases of growth, replication, and division.Both are regulated by internal and external factors.Both involve a process of development and differentiation.Differences:
The eukaryotic cell cycle is much shorter than the human life cycle. A typical eukaryotic cell cycle lasts only a few hours to a few days, while the human life cycle spans several decades.The eukaryotic cell cycle is a continuous process that occurs repeatedly throughout the lifespan of an organism, while the human life cycle involves distinct stages, such as infancy, childhood, adolescence, adulthood, and old age.The eukaryotic cell cycle involves a single cell dividing into two identical daughter cells, while the human life cycle involves the development of a single cell (the fertilized egg) into a complex multicellular organism with many different cell types.The eukaryotic cell cycle is primarily concerned with maintaining and repairing tissues, while the human life cycle involves growth, development, reproduction, and aging.In summary, the eukaryotic cell cycle and the human life cycle share some similarities, such as a specific sequence of events and regulation by internal and external factors, but they also differ in their duration, stages, goals, and outcomes.
Answer:
The eukaryotic cell cycle and human life cycle are similar in that they both involve a series of stages that follow a particular sequence. However, the eukaryotic cell cycle is much shorter and involves cell division and DNA replication, while the human life cycle spans decades and involves physical, emotional, and cognitive developments that contribute to an individual's growth and well-being.
While both the eukaryotic cell cycle and the human life cycle follow a sequential pattern, they differ in terms of their duration and the specific processes that occur within each stage.
WRITE THE EVOLUTION ARIES OF MICROSCOPE WITH SUPPORTIVE INOVATIVE SCIENTIST.
Answers
Answer:
12345678910
Explanation:
trust me brooo
which system is the muscular system anchored to
Answers
Answer:The bones of the skeletal system serve to protect the body's organs, support the weight of the body, and give the body shape. The muscles of the muscular system attach to these bones, pulling on them to allow for movement of the body.
Explanation: Hope it helps!
Answer:
The skeletal system
Explanation:
I neeeed helppppp
True False 1. Vertebrates are animals without a backbone or bony skeleton, such as a starfish. True False
2. Omnivores are organisms that rely on plants and animals for survival.
True 3. A starfish belongs to a group of aquatic organisms that live in freshwater.
True False 4. Echinoderms are a group of radially symmetricspiny-skinned land animals
Answers
a = false
b = true
c = true
d = true
Answers:
1. False.
2. True.
3. False.
4. False.
Explanation: Hope this helps! :)
if one of the three genes were lethal when homozygous recessive what would happen to the distribution of phenotype frequencies
Answers
If one of the three genes were lethal when homozygous recessive, the distribution of phenotype frequencies would be affected in that the distribution of phenotype frequencies would be altered by the presence of a lethal recessive gene, with the frequencies of the recessive phenotype and carriers of the recessive allele decreasing and the frequency of the dominant phenotype increasing.
First, individuals with the lethal recessive genotype would not survive to reproduce and would therefore not contribute to the population. This would result in a decrease in the frequency of the recessive phenotype.
Second, since the lethal recessive genotype is not present in the population, there would be no individuals carrying the lethal recessive allele. This would result in a decrease in the frequency of carriers of the recessive allele.
Finally, the reduced frequency of the recessive phenotype and carriers of the recessive allele would also affect the frequency of the dominant phenotype. The frequency of the dominant phenotype would increase due to the decrease in the frequency of the recessive phenotype.
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Photosynthesizing leaves are the source of ____________ which is actively transported to the ____________ within the phloem.
Answers
Photosynthesizing leaves are the source of sugar which is actively transported to the seive tube
within the phloem.
What do organisms that produce photosynthesis use?Carbon dioxide (CO2) is used by photosynthetic organisms as their primary source of carbon, and this molecule is reduced during photosynthetic reactions. Actually, adding carbon dioxide to microalgae is recognized as a suitable method for increasing microalgal production.
The glucose is prepared by the source by photosynthesis , it is converted to sucrose . The sugar is then moved in form of sucrose into the companion cells and then into living phloem, seive tube cells by active transport.
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Which product forms from the reaction between nitrogen (N)
(CI)?
A. NCI
B. NCI
C. N2CI
O D. N2C1
Answers
Answer:
None of the above
Explanation:
Because as N has the valence of 3 when it reacts with Cl of 1 as valence they will form NCl3Answer:
The product of the reaction between nitrogen (N) and (CL) is nitrogen trichloride (NCl3)
Explanation:
Although by seeing the question's answer choices, I think it was an error to detect the question (image) by Brainly as 2 of the answers is written the same.
However, when nitrogen gas reacts with chlorine gas, the product is gaseous nitrogen trichloride (NCL3), I guess 1 of your answer must be NCL3.
Resolving the crime story-5-Forensic Science
1. Describe the sequence of events of the abduction from the Evan's home. Support your version of events with specific instances of evidence.
2. Where should the police and the FBI look for Brittany Evans? Be as specific as possible and cite evidence for your conclusions
Answers
Answer:
1. she was abducted from her house when her parents were out, she is the only child. she had a cold and they is why she stayed at home. when her parents came back they didn't find her. and they tried calling her but she never picked up.
one of their neighbors was walking a dog during the time she was abducted and he saw a black truck driving fast. He said that the plate number had a FOR on it. With two guying in the front. then after a while when the police where searching they found the car abandon, and also on the plate number there was a FOR on it. in the truck they found blood and hair in the rear seat on the headrest.
2. As part of their forensic investigation, the law enforcement agents should search for the victim in the places where she was last seen.
What evidence could be cited?
Evidence should be collected from the reports by the law enforcement agents.
Hence, it is correct to state that the law enforcement agents should search for the victim in the places where she was last seen.
Explanation:
if it helped uh please mark me a BRAINLIEST :)Which statement describes the function of the hormone called ADH? It tells the kidneys to reabsorb water. It tells the pancreas to secrete insulin. It tells the hypothalamus to make CRH. It tells the ovaries to make estrogen.
Answers
Answer: it tells the kidneys to reabsorb water.
Answer:
It tells the Kidneys to reabsorb water
Explanation:
An increased amount of ADH is released from the pituitary gland when you are thirsty.
Zambrero is one of Australia’s largest Mexican food franchise
s, with over 200 restaurants globally. Zambrero saw rapid growth from inception, from 20 restaurants in 2012 to over 100 restaurants in 2015, the brand quickly cemented its position as one of Australia’s fastest growing businesses with a. presence on the BRW Fast 100 list four times consecutively. As of October 2019, Zambrero has 200 restaurants worldwide. After introducing their business to New Zealand, Ireland, and the United States.
- Zambrero is currently looking for opportunities in the following country Singapore.
- The three assessments on this subject assume that you are working with Zambrero as a management consultant. Thus, you will conduct
analyses and provide insights into their future operation in the international markets.
- Suggested structure for Assessment 1 video presentation
1. A clear introduction to the chosen country (Singapore)
2. An analysis of the chosen country’s most relevant
political factor
3. An analysis of the chosen country’s most relevant
economic factor
4. An analysis of the chosen country’s most relevant
social factor
5. An analysis of the chosen country’s most relevant
technological factor
6. An analysis of the chosen country’s most relevant
environmental
7. An analysis of the chosen country’s most relevant
legal factor
8. Prospects and challenges of doing business in the chosen
country (Singapor)
Answers
Singapore's relevant factors for Zambrero's international expansion include political, economic, social, technological, environmental, and legal aspects.
Introduction to Singapore: Provide a brief overview of Singapore, highlighting its geographical location, population, and business environment.
Political factor: Analyze the political stability, government policies, regulations, and ease of doing business in Singapore, which can impact Zambrero's operations.
Economic factor: Evaluate Singapore's GDP, income levels, market size, inflation rates, and potential demand for Mexican cuisine, considering factors such as disposable income and consumer spending patterns.
Social factor: Examine cultural preferences, dining habits, and acceptance of foreign cuisine in Singapore, considering the target market's preferences and attitudes towards Mexican food.
Technological factor: Assess Singapore's technological infrastructure, digital adoption, online food delivery services, and mobile app usage, which can influence Zambrero's online presence and customer engagement.
Environmental factor: Discuss environmental sustainability initiatives, waste management practices, and consumer awareness of eco-friendly choices that can impact Zambrero's commitment to sustainability in the market.
Legal factor: Examine relevant laws and regulations related to food safety, licensing, labor practices, and intellectual property rights in Singapore, ensuring compliance for Zambrero's operations.
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omosexuality is seen only in humans. has been documented for only a few hundred years in only a few societies. likely reflects the input of a number of genes and environmental factors. is inherited from a mutation on the X chromosome. is only the result of environmental influences.
Answers
Answer:
Homosexuality likely reflects the input of a number of genes and environmental factors
Explanation:
Sexual orientation can be defined as the attraction that experiments an individual self-identified with a particular gender (either male or female) to other persons according to their sex, this orientation may be classified into three categories: heterosexual (attraction for people of opposite sex), homosexual (same-sex) and bisexual (either sex). In the last years, the mechanisms involved in sexual orientation have been subject to intense research. In this regard, the main part of the scientific community agrees that sexual orientation is the result of the complex interaction between genetic and environmental factors. This hypothesis is supported by the fact that genes whose expression is associated with particular human behaviors, including sexual orientation, have been recently identified and mapped. Moreover, it has been shown that environmental factors such as, for example, hormone exposure before birth (i.e., during fetal programming) may also determine sexual orientation.
Birds fly south in winter because of __(blank)__.
a) circadian rhythms
b) biological clocks
c) chronobiology
d) entrainment
Answers
Answer:
C
Explanation:
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