In general, the species Canis lupus (wolf) is larger than Canis lupus familiaris (dog). Although there are breeds of dogs that are larger than wolves, most modern dogs are smaller. Thus, the pattern of adaptation is toward smaller animals. What might be the cause of this change? (Think about where wolves today vs. where dogs live today)
Answers
Answer:
All dogs are domesticated wolves. Canis lupus familiaris (dog) are smaller than Canis lupus (wolf) and are also different in their behavior.
The pattern of adaptation changed because some of the docile wolves started moving around ancient hunter-gatherers to snack on their garbage and hunter-gatherers started feeding them with extra food scraps. Thus, these friendly wolves were probably domesticated by accident and evolved into dogs.
Hence, the pattern of adaptation is toward smaller animals is due to the domestication of Canis lupus familiaris (dog).
Related Questions
if chlorophyll were red instead of green, making plants red in appearance, which color of light would you expect to produce the lowest rate of photosynthesis? white light blue light red light green light
Answers
If chlorophyll were red instead of green, making plants red in appearance Because the energy is at its peak in these light ranges, the higher on the light spectrum lights, like blue and violet, indicate the fastest rate of photosynthesis in plants.
Plants use the photosynthetic pigment chlorophyll, which absorbs light rays to use during photosynthesis (synthesis of glucose).
If a plant has red chlorophyll, it will only absorb red light and not any other hues of light. Red light therefore produces the least amount of photosynthesis.
Therefore, it would be expected that the red color of light would result in the lowest rate of photosynthesis if chlorophyll were red instead of green, giving plants a red appearance.
The process of producing carbohydrates (glucose) through photosynthesis uses sunlight that is captured by the chlorophyll pigment found in plant cells.
The primary photosynthetic pigment in plants, chlorophyll, absorbs light photons to carry out photosynthesis.
Any other colors of light besides red will not be absorbed by a plant if its chlorophyll is red. This indicates that plants will produce the least amount of photosynthesis when exposed to red light.
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if all cells contain the exact same copy of DNA, how do they become specialized?
Answers
Even if all the cells have the same DNA they biochemical function are different, that's because differents sets of genes must be turned on and off in each cell type by the action of enzymes and other molecules. Each cell have the same 20,000 or so genes but they are biochemically selected by the action of molecules as hormones and chemical signaling. Therefore, different cells use different parts of the DNA code as directions.
Which of the following is an example of how a biotic factor can affect the population dynamics in an ecosystem? (4 points)
a
Lack of water during a drought causes many of the individuals in a population to die.
b
Seasonal temperature changes cause a species to migrate between two ecosystems.
c
Excessive rain and flooding cause organisms in an area to relocate.
d
The population of a predator increases following an increase in the population of its prey.
Answers
Answer:
d.The population of a predator increases following an increase in the population of its prey is an example of how a biotic factor can affect the population dynamics in an ecosystem
Explanation:
sorry if its wrong
Answer:
The correct answer is D The population of a predator increases following an increase in the population of its prey.
Explanation:
I took the test. Gl btw
Match the causes with their effects.
injecting fracking fluids
into the ground
oil spills during transport
on a ship
destroys animal habitats and
causes topsoil to erode
pollutes groundwater with
dangerous chemicals
harms aquatic creatures
and vegetation
Reset
Next
deforestation
Answers
Deforestation destroys animal habitats and causes erosion of the topsoil. 2) releases hazardous chemicals into the groundwater—fracking fluid injections; 3) endangers marine life and vegetation—oil spills on ships.
During fracking, what is injected?Propargyl alcohol, ethylene glycol, and methanol are typical components. These substances are regarded as harmful to human health, along with many others found in fracking fluid.
What is the animal population's habitat?A habitat is a place where a living thing spends the entire year or only temporarily while searching for a partner. The habitat provides all the necessities for an animal to survive, including food and shelter.
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Which of the following best describes the result of meiosis? Select 3 that apply.
WILL GIVE BRAINLIEST
Answers
The result of the process of meiosis is that it produces increased genetic diversity due to crossing over.
The correct option is C.
What is meiosis?Meiosis is a type of cell division that results in the production of gametes or sex cells. Hence. meiosis is a form of cell division that occurs only during sexual reproduction.
During meiosis, the cells of the parent organism which have a pair of chromosomes or diploid number or 2n of chromosomes divide to produce the gametes which have the haploid number or n number of chromosomes.
Hence, the sex cells or gametes produced can fuse to form a zygote that has a pair of chromosomes or diploid number or 2n of chromosomes.
The process of meiosis results in genetic variation as it allows for the crossing over of genes, such that the genes of the offspring show a variation to that of the parents as well as among the offspring.
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some hormones inhibit actions in the body; other hormones stimulate actions in the body. Explain.
Answers
Hormones are chemical messengers in the body that are released by the endocrine glands. They play an important role in helping to regulate body functions and processes.
Hormones can either inhibit or stimulate certain actions in the body. When a hormone inhibits an action, it slows down or stops a particular process. For example, the hormone insulin inhibits the breakdown of glucose in the body, preventing it from becoming too high. On the other hand, when a hormone stimulates an action, it increases or speeds up a particular process.
For example, the hormone epinephrine stimulates the heart rate and blood pressure in times of stress or danger. Hormones are essential for the proper functioning of the body and can be both beneficial and detrimental depending on the circumstances. It is important to understand how hormones both inhibit and stimulate different actions in the body in order to keep our body in balance.
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After 14 years of age, do males or females have a higher red blood cell count
Answers
Answer:
males
woman and against males the blood of a cells 4.1 to 6 per microliter.
What causes
the wind
and ocean
currents?
Answers
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Explanation:
Ocean currents can be caused by wind,density differences in water masses caused by temperature and salinity variations,gravity,and events such as earthquakes and storms...Surface currents in the ocean are driven by global wind systems that are fueled by energy from the sun.
how do the geocentric and heliocentric models of the solar system differs?
Answers
Answer:
The main difference is that the geocentric has the Earth at the center, and the heliocentric has the sun at the center.
Answer:
The geocentric has the Earth at the center while the heliocentric has the sun at the center.
Explanation:
:)
A dense network of wisplike fibers which interconnect the organelles in the cytoplasm are called
Answers
Answer:
The correct answer is - the cytoskeleton.
Explanation:
A cytoskeleton in a cell is that appears as a dense network of whiplike fibers, tubules, and filament which maintain the shape and strength of the cell by interconnecting various cellular structure with one another.
These are made up of similar proteins in various organisms and can be found in the cytoplasm from the nucleus to the cell membrane.
Thus, the correct answer is - the cytoskeleton.
what are the two major functions of peptidoglycan structural layer?
A. to separate the cell membranes and generate energy for the cell.
B. to prevent cell lysis and allow molecules to pass through the wall.
C. to transport nutrients into the cell and synthesis porins.
D. to prevent cell lices and prevent water from leaving the cell.
E. to transport ions through the wall and produce endotoxins
Answers
Answer:
The answer of this question is number E
Answer:
E
Explanation:
The peptidoglycan cell wall is meshlike, allowing for easy passage of ions, amino acids, and nutrients and maintaining structural integrity.
what does an energy pyramid represent? by a food web and energy pyramids
Answers
Answer:
It's a graphical representation of the energy found within the tropic levels of an ecosystem.
Explanation:
Bone is flexible in nature. true or false.
Answers
5. What are two main things that are unique to the Troposphere?
A)people live in this layer and the weather occurs here
B)meteors burn up and it's the coldest layer
C)the International Space Station Orbits in this layer and it has the highest
temperatures
D)none of the above
Answers
Answer:
The two main things are:
A) people live in this layer and the weather occurs here
B) meteors burn up and it's the coldest layer
A substitution mutation occurred and changed the 5th base in the DNA from a C to a T. Write the sequence of RNA codons that would result from this kind of mutation. **Separate each codon with a space. TACACGCAATTACCAGGGTAGCCATTGATT
Answers
The sequence of RNA codons resulting from the substitution mutation that changed the 5th base in the DNA from a C to a T is AUGUGCGUUAUCCAGGGUAGCCAAUUGA.
In DNA, the base C (cytosine) pairs with G (guanine), while in RNA, the base C pairs with G. However, due to the substitution mutation, the original C is replaced by a T (thymine) in the DNA sequence.
In RNA, thymine is replaced by uracil (U). Therefore, the RNA codons corresponding to the mutated DNA sequence can be derived by replacing each T with U and maintaining the sequence order.
The original DNA sequence TACACGCAATTACCAGGGTAGCCATTGATT would have the corresponding RNA codons AUGUGCGUUAUCCAGGGUAGCCAAUUGA. Each codon consists of three bases and represents a specific amino acid or a start or stop signal in the translation process of protein synthesis.
It's important to note that the given DNA sequence is provided as a single continuous string, and without additional information about the reading frame or specific gene sequence, it is not possible to determine the precise protein sequence or the functional implications of the mutation.
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What is the molecule in this image?
Nucleic acid
A protein
A lipid
A carbohydrate
Answers
Answer:
a protein
Explanation:
amino acids are the monomers of proteins
Help will mark brainliest #3
Answers
Answer:
c d
Explanation:
Answer:
C.
Explanation:
The kidney and the liver removes wastes from
blood
1. Chromosomes and genes share all of the following characteristics except that
A. They are both present in pairs in all diploid cells.
B. They both undergo segregation during meiosis.
C. Their copy numbers in the cell decrease after meiosis, and increase during fertilization. D. They are both copied during the S phase of the cell cycle.
E. They both pair up with their homologues during prophase of mitosis
Answers
Answer:
Answer: C. Their copy numbers in the cell decrease after meiosis, and increase during fertilization.
Explanation: Chromosomes and genes share all of the characteristics listed except for C. Chromosomes undergo segregation during meiosis, which results in a decrease in their copy numbers in the cell. However, genes do not undergo segregation during meiosis, so their copy numbers in the cell do not decrease after meiosis. Instead, the copy numbers of genes increase during fertilization when the two haploid cells combine to form a diploid cell.
Briefly compare and contrast the differences and similarities of chondrocyte cells to a genelized plant cell.
Answers
Chondrocyte cells and generalized plant cells are both eukaryotic cells with a nucleus and other membrane-bound organelles, but there are several differences between them:
Structure: Chondrocyte cells are animal cells that are typically round or oval in shape and contain a dense matrix of collagen fibers, proteoglycans, and other extracellular matrix components. Plant cells, on the other hand, are generally rectangular in shape and have a rigid cell wall made of cellulose.
Function: Chondrocyte cells are responsible for producing and maintaining cartilage in the body. Plant cells, meanwhile, perform a variety of functions related to photosynthesis, storage, and support.
Organelles: Both chondrocyte cells and plant cells have many of the same organelles, such as mitochondria, ribosomes, and Golgi apparatus. However, plant cells also have unique organelles such as chloroplasts for photosynthesis, and large central vacuoles for storage.
Reproduction: Chondrocyte cells do not typically divide once they have matured. Plant cells, however, can divide through mitosis and also have the ability to differentiate into different types of cells.
Overall, while there are some similarities between chondrocyte cells and plant cells, the structural and functional differences between the two make them distinct cell types with unique roles in their respective organisms.
Diffusion of a solute across a membrane occurs until equilibrium is reached. At the time of equilibrium ___________________
Answers
Diffusion of a solute across a membrane occurs until equilibrium is reached. At the time of equilibrium, the concentration of the solute in both compartments will be equal.
The process of diffusion is driven by concentration differences and proceeds until the concentration in both compartments is the same. This is known as equilibrium, and it is characterized by a steady state in which there is no net movement of solutes across the membrane. Equilibrium is a fundamental concept in the study of transport across membranes, and it plays a critical role in the function of many biological systems.
In order to maintain a concentration gradient across a membrane, cells use active transport mechanisms to move solutes against their concentration gradients.
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1.conduct a detailed external macro analysis of the global ecological environment on agriculture industry 2.Extensively research the extent to which that industry has contributed towards the climate crisis with regard to the Agriculture industry
3.Extensively research the impact of the climate crisis on Agriculture 4.Extensively research the measures being put in place by key business
organizations in Agriculture industry to address the climate crisis
Answers
In a summarised format, we can highlight the key points of each question:
The global ecological environment has a significant impact on the agriculture industry, including factors such as climate change, biodiversity loss, water scarcity, and soil degradation.The agriculture industry has contributed to the climate crisis through greenhouse gas emissions, deforestation for agriculture expansion, and intensive livestock farming practices.The climate crisis has had a profound impact on agriculture, including crop yield reductions, changes in growing seasons, increased pest and disease outbreaks, and water stress.Key business organizations in the agriculture industry are implementing various measures to address the climate crisis, including sustainable farming practices, precision agriculture technologies, conservation agriculture, and investment in renewable energy and carbon offset programs.Now, we can explain each point:
The global ecological environment plays a crucial role in shaping the agriculture industry. Climate change affects temperature, precipitation patterns, and extreme weather events, impacting crop productivity and livestock health. Biodiversity loss affects pollinators, soil fertility, and pest control. Water scarcity affects irrigation systems and water availability for agriculture. Soil degradation affects nutrient content and soil health.The agriculture industry has contributed to the climate crisis through several activities. Greenhouse gas emissions from agricultural practices, such as methane from livestock and nitrous oxide from fertilizer use, contribute to global warming. Deforestation for agricultural land expansion, particularly for large-scale commercial farming, leads to carbon dioxide emissions and loss of carbon sinks. Intensive livestock farming practices contribute to emissions and deforestation for feed production.The climate crisis has negatively impacted agriculture globally. Rising temperatures, changes in rainfall patterns, and increased frequency of extreme weather events disrupt crop growth, leading to lower yields and reduced quality. Changing climate conditions affect the timing of planting and harvesting, causing challenges for farmers. Pests and diseases may spread more rapidly under warmer conditions. Water stress, droughts, and changing water availability affect irrigation and crop survival.To address the climate crisis, key business organizations in the agriculture industry are implementing various measures. This includes promoting sustainable farming practices like organic farming, agroforestry, and regenerative agriculture. Precision agriculture technologies help optimize resource use and reduce environmental impact. Conservation agriculture practices aim to preserve soil health and minimize erosion. Businesses are also investing in renewable energy sources for on-farm operations and exploring carbon offset programs to neutralize emissions. Collaboration with stakeholders, research institutions, and policymakers is essential to drive sustainable practices and mitigate the impact of climate change on agriculture.Learn more about biodiversity loss at:
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Explain how scientific theories differ from scientific laws.
Answers
Compare and contrast the functions of each types of flasks: filter, erlenmeyer, volumetric
Answers
The Compare and contrast for the functions of each types of flasks: filter, erlenmeyer, volumetric is given below
Filter flasks are designed to hold a filter paper or membrane in place to separate solid particles from a liquid during filtration. They typically have a round bottom, a short neck, and a flat bottom, and are often used in conjunction with a vacuum pump to facilitate the filtration process.Erlenmeyer flasks, also known as conical flasks, have a narrow neck and a conical base. They are used to mix, measure, and hold liquid or solid samples in a laboratory setting. Because of their shape, they are less prone to spilling than other types of flasks, and they can also be easily fitted with a stopper or a cap.Volumetric flasks are used to accurately measure the volume of a liquid. They are designed to hold a specific volume of liquid at a temperature of around 20°C, and are calibrated to be accurate to within a few parts per million. What are the flask about?Filter flasks are typically made of borosilicate glass, which is a type of glass that is resistant to thermal shock and chemical attack. They are available in a range of sizes, from small ones that hold a few milliliters of liquid to large ones that hold several liters.
Therefore, Erlenmeyer flasks are characterized by their narrow neck and conical base, and are typically made of borosilicate glass or plastic.
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Bones and cartilages ar both skeletal, supportive systems. Yet, one is thick and long, one is thin and rather small? What are some of the major factors that account for the differences.
Answers
Bones and cartilages constitute the skeletal system in which bone has a hard pliable matrix whereas cartilage has a soft, non-pliable matrix.
Bone is hard connective tissue due to the deposition of calcium salts. It provides structural support to the human body and has a weight-bearing function. It covers and protects the internal organs from mechanical shocks.
Cartilage is a soft connective tissue. It is distributed majorly in newborns and invertebrates. It has the deposition of chondrin salts which makes it soft and flexible. cartilage functions as a shock absorber and facilitates the smooth movement of bones.
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“Some viruses are programmed to reproduce by identifying bacteria, killing them, and assembling new viruses.viruses do not eat the bacteria and do not grow after they are made. Viruses are not alive. Explain two reasons why.”
Answers
1. Viruses cannot reproduce on their own: Unlike living organisms, viruses cannot reproduce on their own. They need to infect a host cell and hijack the host cell's machinery in order to replicate themselves. Once they have infected a host cell, they use the cell's energy and resources to create new copies of themselves. However, they do not have the ability to reproduce outside of a host cell.
2. Viruses do not have the ability to carry out metabolic processes: Living organisms carry out metabolic processes, such as respiration and digestion, in order to obtain energy and nutrients. Viruses do not have the ability to carry out these processes on their own. They rely entirely on the host cell to provide them with energy and nutrients. In fact, viruses do not even have the necessary machinery to carry out these processes. They lack the organelles, such as mitochondria, that are responsible for energy production in living cells.
In a particular species of frogs, black spots are a dominant trait and their absence is a recessive trait. In a population of frogs, 50 are homozygous for the dominant trait, 34 are heterozygous dominant, and 16 show the recessive trait. Which expression is the correct way to calculate the frequency of the dominant allele?
A. 50/100
B. 84/100
C. 50/200
D. 134/200
E. 100/200
Can yall help me out
Answers
The expression which is the correct way to calculate the frequency of the dominant allele is 134/200. Thus, the correct option is D.
What is Allelic frequency?The allelic frequency may be defined as the sum total of all the alleles of a gene in a population. It represents the overall genetic diversity within a population.
The allelic frequency is calculated by the formula when the genotypes are given in number. It is as follows:
2 × Number of Purebred dominant + Number of heterozygous/ 2× Total number of individuals in a population.
∴ Allelic frequency of dominant allele = 2 × 50 + 34/ 2× 100 = 134/200 = 0.67.
The allelic frequency of the Dominant allele is 0.67 while the allelic frequency of the recessive allele is 0.33.
Therefore, it is well described above.
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name at least four process that
are common to most living things
Answers
organization, metabolism, responsiveness, movements, and reproduction.
Part E
Explain your justification for the changes in trait distribution between years 1 and 10. What do you think will happen to the population by year 15?
Answers
Answer:
It will continue to rise.
Explanation:
Genetic variation results in the changes in trait over the period of time. Hence, traits do change over the years, but it is a gradual process. The population will become more stable due to successful traits.
What is genetic variation?Genetic variation refers to the changes in the genotype of an individual. It imparts stability to the population. Genetic variation results from meiotic cell division where recombination of gene produces genetic exchange of heredity material.
Those traits which are successful in nature that means those variations which provide stability to the organism in any environment are favoured. Organisms with such variations adapt, survive and further reproduce to continue their existence. Such traits are transmitted to the progeny as well.
Thus, gradual accumulation of changes in traits contribute to a more stable population over the span of years.
Therefore, changes in traits are important in determining the track of evolution on earth.
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Researchers are investigating the use of gene therapy as a treatment option for human genetic disorders, such as cystic fibrosis. When gene therapy is successful, how does it treat the disorder?
A. by activating, or "turning on," one or more genes
B. by deactivating, or "turning off," one or more genes
C. by incorporating a human gene into the genomes of bacteria or other organisms
D. by replacing a faulty gene with a normal gene in the human genome
Answers
Answer:
A
Explanation:
By replacing a faulty gene with a normal gene in the human genome. Therefore, option (D) is correct.
Gene therapy works by inserting a functioning gene into a patient's cells. A viral vector or other delivery method transports the normal gene into target cells.
In cells, the normal gene integrates into the genome and produces the functional protein that was missing or faulty in genetic disorder patients. Gene therapy replaces the damaged gene with a normal gene to repair the genetic origin of the condition and restore normal cell or tissue function.
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A lake is home to a large number of trout. Identify what is most likely to happen if a chemical is dumped into the lake.
I. The trout will not be affected by the pollution.
II. The number of trout will increase.
III. The trout will suffer from disease.
A) I
B) I and II
C) III
D) II and III
Answers
Answer: C
Explanation: The process that occurred in the lake is natural selection. In the presence of an external environmental influence such as pollution, only the trouts that were fit to survive or in other words those that have the alleles that help in adapting to the new conditions live and increased in numbers. In such a case, one can say the fittest of the organisms survived and the corresponding allelic frequency in that population increased over time. The organisms carrying the other alleles died due to pollution and hence the overall frequency of alleles change.
A lake is home to a large number of trout the trout will suffer from disease is most likely to happen if a chemical is dumped into the lake. The correct option is C.
What is chemical pollution?Chemical pollution is the contamination of our environment with chemicals that are not naturally present.
According to scientific evidence, the trout in option will most likely suffer from disease.
Chemical pollution can harm aquatic life, including fish, by lowering oxygen levels, changing the pH balance of the water, and introducing toxins into their food chain.
Exposure to such chemicals can weaken the fish's immune system, making them more vulnerable to disease.
Option B and A is also less likely to be true because the introduction of chemicals into the water can disrupt the ecosystem's balance and affect the availability of food and oxygen, causing the trout population to decline.
Thus, the correct option is C.
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