Answer:
Human environment interaction
Explanation:
OK so thats the answer hope it helped ⇔ I really do
How do limiting factors most affect population size? stop population growth restrict population growth increase population growth decrease population growth
Answer:
restrict population growth
Explanation:
Limiting factors of a population are those factors that constrict the growth of the population. They often act as a check on population growth.
Some of these limiting factors are:
Food Water Habitat of organismsFrom the giving choices, limiting factors have been clearly shown to inhibit population growth.
The lack of some of these factors checks the population, thereby impeding its growth.
Answer:
How do limiting factors most affect population size?
restrict population growth
Explanation:
correct on edge unit test
Complete the following paragraph selecting words from the list below. Pollination is the transfer of ……. from the ……..to the …….in a flower. In cross-pollination, the ……. from a flower on one …….is transferred to the …….of another ……. of the same species. (7 marks)
Anthers, ovule, stigma, plant, flower, pollen, ovary, petal, style, receptacle, stamens
Answer:
pollen grain from the stigma
cross pollination -transfer of pollen grain from one flower to the other but of the same kind
PLEASE HELP Unlike most organisms the white-tailed deer has thrived in disturbed areas. Explain at least two ways that the increasing human population
has and will continue to impact the white-tailed deer population. In your response, be sure to address both living and nonliving limiting
factors
Answer:
https://ecosystems.psu.edu/outreach/youth/sftrc/deer/wtd-lesson3
go into this link your answers is discover
The white tailed dear population is influenced by many factors. The factors are predator, habitat alteration, agricultural factors, land management, etc.
Why is white-tailed deer an important species?White-tailed deer are valuable species.
There is the most wide distribution of these species in North America.
White-tailed deer are of this much importance due to their ability to impact many other organisms.
The factors that impacts their population are:
The effects of human pressure on deer population densities results mainly in ecosystems leads to serious fragmentation, such as the tropical dry forest.Habitat alteration: Increasing population of human needs more space for their residence and hence results in habitat alteration.There are many changes in agricultural factors also.Thus, due to all these above mentioned factors the increasing human population is impacting white-tailed deer population.
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the plantar reflex tests spinal nerves in which of the following regions of the spinal cord
Answer:
jiohiog
Explanation:
i need help on this too
The plantar reflex is a neurological examination for the S1 region of the spine.
The plantar reflex is the superficial response of the nervous system. The response to the stimulus of the foot with the blunt instrument at the spinal cord is observed in plantar reflex.
Which region of the spinal cord was tested in Plantar reflex?The spinal cord is the part of the nervous system and is able to give immediate signals for the reaction against stimuli.
The signals from the movement of the signals from the toe reflex to the spinal are governed by the S1 region of the spinal cord.
Thus, the plantar reflex is a neurological examination for the S1 region of the spine.
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Which of the following best compares Linnaeus's classification system to the classification system developed by Carl Woese and his colleagues in the 1990s?
Linnaean taxonomy classifies organisms into kingdoms based on physical traits, while Woese's classification sorts organisms into domains based on genetic differences.
Linnaean taxonomy classifies organisms into domains based on complexity, while Woese's classification sorts organisms into kingdoms based on method of obtaining nutrients.
Linnaean taxonomy classifies organisms into realms based on geographic location, while Woese's classification sorts organisms into domains based on method of reproduction.
Linnaean taxonomy classifies organisms into taxa based on size, while Woese's classification sorts organisms into kingdoms based on physical traits.
Answer:
The correct answer is - Linnaean taxonomy classifies organisms into kingdoms based on physical traits, while Woese's classification sorts organisms into domains based on genetic differences.
Explanation:
Linnaean classification is set up by Carl Linnaeus which is used to divide and organized organisms into different groups according to some similar basic features such as physical traits. It was the most basic type of classification.
The classification of Carl Woese was based on the different genetic differences to categorize or group organisms. This was a three-domain system that includes Bacteria, archaea, and eukarya.
Answer:
Linnaean taxonomy classifies organisms into kingdoms based on physical traits, while Woese's classification sorts organisms into domains based on genetic differences.
Explanation:
took test
The dermis is the inner layer of the skin that contains within its structure
(Select all that apply)
melanocytes
keratin
Chair follicles
Carrector pill muscles
Answer:
Carrector pill muscles hair follicles
Explanation:
melanocytes and keratin are present in the epidermis
The dermis is the layer of skin, which is present beneath the epidermis and above the subcutaneous layer. It is the thickest layer of the skin, primarily composed of elastic and fibrous tissue.
The correct answer is:
Option C. hair follicles
Option D. Arrector pili muscles
The dermis consists of:
1. The hair follicles are found in the epidermis and the dermis. Hair follicles nourish the hair and are the tube-shaped structure that surrounds the part of the hair.
2. Arrector pili muscles are the tiny muscles, which attach hair follicles at one end and dermal tissue at the other end. The arrector pili muscles contract to generate heat, giving the feeling of goosebumps.
Thus, the hair follicles and arrector pili muscles are found in the dermis.
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Explain the role of calcium ions in the structure of cell walls in plants.
红
ste
Class
Lesson Uutine
Levels of Organization
A Lite's Organisation
1. A large animal is composed of trillions of tiny
together
organisms are made of only one cell.
working
Answer:Life's Organization. 1. A large animal is composed of trillions of tiny cells working together. 2. Unicellular organisms are made of only one cell. B.
Explanation:
ways of measuring Growth In microbes 1 and second method
Answer:
The size of a population of microorganisms in liquid culture may be measured by counting cells directly or by first diluting the original sample and then counting cell numbers (see below), or by taking some indirect method such as the turbidity (cloudiness) of the culture.
Identify the dependent and independent variable in each of the examples below: 1. White mice are fed a treat every time they manage to ring a bell. The time required for the mice to learn the task is measured. 2. The diversity of fish in a stock pond is measured before and after the introduction of nitrogen fertilizers (such as would occur when excessive fertilizer is used on crops). 3. Batches of radish seeds are subjected to radiation in a microwave oven for 15 sec, 30 sec, 45 sec, and 60 sec. The seeds are then allowed to germinate and the percentage of successful germination is recorded.
Answer:
1. IV: Time the Bell is rang DV: Time it takes to learn the task
2. IV: Nitrogen fertilizers DV: Diversity of fish
3. IV: Time of radiation DV: Percentage of successful germination
Explanation:
The independent variable of an experiment refers to the variable that the experimenter manipulates or changes in order to effect a measurable response in the dependent variable while the dependent variable is the variable that responds to the changes made to the independent variable.
1. In scenario 1, the TIME THE BELL RINGS is the independent variable because that is what the experimenter controls or has power to change. On the other hand, the dependent variable is the TIME IT TAKES TO LEARN THE TASK because it is the measured variable that responds to the independent variable.
2. In scenario 2, the USE OF NITROGEN FERTILIZER is the independent variable while the DIVERSITY OF FISH is the dependent variable.
3. In case 3, the TIME OF RADIATION is the independent variable while the PERCENTAGE OF SUCCESSFUL GERMINATION is the dependent variable.
What type of receptors in the wall of the larynx and lungs, cause a person to cough in response to components of smoke and smog
The receptors in the wall of the larynx and lungs that cause a person to cough in response to components of smoke and smog are known as irritant receptors. These receptors are sensitive to various stimuli, including airborne particles and chemicals, that can irritate the respiratory tract.
When activated, irritant receptors send signals to the brain, triggering a cough reflex that helps to clear the airways of any potential harmful substances. Chronic exposure to smoke and smog can cause damage to the respiratory system and increase the risk of respiratory illnesses, such as bronchitis and asthma. It is important to minimize exposure to these pollutants and seek medical attention if coughing persists or is accompanied by other symptoms.
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if we use a cscl gradient to test the density of various nucleic acids, both rna and dna-rna hybrids are more density than just dna. explain why this might be the case.
RNA and DNA-RNA hybrids are more dense than simply DNA if the density of different nucleic acids is tested using a CsCl gradient.
The primary technique employed in molecular biology is the extraction of DNA, RNA, and protein. Scientists can separate materials according to size, shape, and density by using density gradient centrifugation. Isopycnic centrifugation, a sort of density gradient centrifugation that Meselson and Stahl developed, employed a cesium chloride solution to separate DNA molecules solely on the basis of density. Because DNA has hydrogen bonds between its strands, which makes it less dense than RNA, RNA has a far larger density than DNA. RNA can be obtained at the test tube's bottom using a CsCl density gradient and high centrifugation, whereas DNA can be recovered in the middle layer.
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Each time a fatty acid bonded to the glycerol molecule, you should have -H and an O-H left over. What molecule
does these left-over atoms bind together to create?
Each time a fatty acid is bonded to the glycerol molecule the leftover atoms -H and -OH bind together and create a water molecule i.e H₂O molecule.
What are Fatty Acids?
A fatty acid is a carboxylic acid having an aliphatic chain that is either saturated or unsaturated.
Fatty acids are the building blocks of fat in our bodies and our meals. The body converts lipids into fatty acids during digestion, which can subsequently be absorbed into circulation. Fatty acid molecules are typically joined in groups of three to form a molecule known as a triglyceride.
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Which process removes carbon dioxide from the atmosphere?
a. burning fossil fuels
b. photosynthesis
c. decomposition of living organisms
d. cellular respiration
Through photosynthesis, carbon dioxide is eliminated from the atmosphere. When it comes to storing the carbon that photosynthesis removes from the atmosphere, trees excel.
Through a process known as photosynthesis, plants and other living organisms convert light energy into chemical energy that can later be released through cellular respiration to power the organism's activities. Carbohydrate molecules like sugars and starches, which are created from carbon dioxide and water, contain some of the chemical energy mentioned above. Photoautotrophs are creatures that perform photosynthesis, including the majority of plants, algae, and cyanobacteria. The majority of the energy required for life on Earth is produced and maintained through photosynthesis, which is also substantially responsible for producing and maintaining the oxygen concentration of the Earth's atmosphere.
Even though various species perform photosynthesis in different ways, the process always starts when energy from light is absorbed by proteins called reaction centers that contain the colored pigments/chromophores green chlorophyll (and other colors). Unlike bacteria, which have these proteins incorporated in the plasma membrane, plants store these proteins in organelles called chloroplasts, which are most prevalent in leaf cells.
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You are managing a bond portfolio for AIMCO (Atlantic Investment Management Company, LLC). The current yield to maturity of your portfolio is 4.7% per annum, and your team of analysts tells you that if the Federal Reserve Board raises interest rates by 25 basis points (i.e., 0.25%), then the value of your portfolio will rise by approximately 5%. On the basis of this information, what is the the Macaulay duration of your bond portfolio closest to
Macaulay duration is typically expressed as a positive number, the closest Macaulay duration of your bond portfolio is 20. This means that for a 0.25% change in interest rates, your bond portfolio will experience an approximate 5% change in value, and the weighted average time until the bondholder receives the bond's cash flows is 20 years.
To calculate the Macaulay duration of your bond portfolio, you can use the following formula:
Macaulay Duration = (-1 * % change in portfolio value) / (change in interest rate)
In your case, the change in interest rate is 0.25% or 0.0025, and the percentage change in the portfolio value is 5%.
Macaulay Duration = (-1 * 5%) / 0.0025
Macaulay Duration = (-0.05) / 0.0025
Macaulay Duration = -20
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Every tRNA has an anticodon. What is the purpose of an anticodon?
Anticodons tell the tRNA when to stop retrieving amino acids.
Anticodons help the tRNA retrieve the correct nucleic acid.
Anticodons help the tRNA retrieve the correct amino acid.
Anticodons tell the tRNA when to begin retrieving amino acids.
Answer:
Anticodons help the tRNA retrieve the correct amino acid.
Explanation:
Function of Anticodons The function of anticodons is to bring together the correct amino acids to create a protein, based on the instructions carried in mRNA. Each tRNA carries one amino acid and has one anticodon.
What do plants do with light energy during photosynthesis?
Answer:
during photosynthesis light energy is captured and used to covert water, carbon dioxide and minerals into oxygen
Explanation:
Answer:
Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
Explanation:
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ok for my first question i'll keep it simple how many bones are in a dogs body?
Answer:
319 bones are in a dog's body
Answer:
319
Explanation:
How important is the role of lifestyle in cardiovascular risk?
Lifestyle plays a vital role in lowering cardiovascular risk
It is advised to eat a low-fat, high-fiber diet that is rich in whole grains, five portions a day of fresh fruit and vegetables, and other nutrients. The maximum amount of salt you should consume each day is 6g (0.2 oz), as eating more than that will raise your blood pressure.
Saturated fats should be avoided because they will raise the levels of bad cholesterol in your blood. Try to limit your intake of sugar as this can increase your risk of developing diabetes, which has been shown to significantly increase your risk of CHD.
The best way to keep a healthy weight is to combine a healthy diet with frequent exercise. Your risk of developing high blood pressure is decreased by maintaining a healthy weight.
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Two mutant genes in Drosophila melanogaster produce the recessive traits crossveinless wings (cv) and singed bristles (sn). Given the following genetic map, if the F1 dihybrid flies (produced from a cross of pure-breeding males with singed bristles and pure-breeding females with crossveinless wings) for these two genes were crossed to flies that expressed both recessive phenotypes, what outcome would you predict in terms of the phenotypic classes seen and numbers of progeny in each class (assume a population size of 1000)?
The dihybrid cross is done in two steps. The F1 dihybrid flies from a cross of pure-breeding males with singed bristles and pure-breeding females with cross veinless wings are used for the first step, and flies that express both recessive phenotypes are used for the second step.
The following table shows the outcome of the first step of the dihybrid cross in terms of the number of progeny and their phenotypes : Genotype Phenotype Number of Progeny SS CC 250Ss Cc 250SS Cc 250ss cc 250Totals 1000The next step is to cross the F1 dihybrid flies with flies that express both recessive phenotypes, ss cc.
The following table shows the results of this second step: Genotype Phenotype Expected Number of Progeny Observed Number of Progeny SS cc Singed bristles and cross veinless wings ( sn cv) 62.5 67Ss cc Singed bristles only (sn) 187.5 190ss Cc Cross veinless wings only (cv) 187.5 185ss cc Neither mutant phenotype 62.5 58Totals 500 500
Therefore, the outcome of the phenotypic classes seen and the number of progeny in each class would be as follows :Singed bristles and cross veinless wings (sn cv) - 67Singed bristles only (sn) - 190Crossveinless wings only (cv) - 185Neither mutant phenotype - 58The expected number of progeny for each phenotypic class is determined by multiplying the probability of each of the two independent events that produce the phenotype.
For example, the probability of producing a singed bristle only phenotype is the product of the probability of producing a singed bristle phenotype, which is 0.5, and the probability of not producing a cross veinless wing phenotype, which is also 0.5. The probability of producing a singed bristle only phenotype is therefore 0.5 x 0.5 = 0.25. The expected number of progeny for this phenotype is the product of this probability and the total number of progeny, which is 0.25 x 500 = 187.5.
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A student was asked to develop a model to explain cell differentiation beginning with embryonic stem cells. What processes should she show in her model to best explain this process?.
The student should show the process of cell division, followed by the process of cell differentiation.
Changes in gene expression during cell differentiationDifferentiation is the process by which cells become specialized to perform specific functions. In embryogenesis, differentiating cells give rise to the various tissues and organs of the adult organism. Differentiation begins with the formation of the embryo, when cells start to divide and specialize to form the various tissues and organs.
During cell division, the genetic material is duplicated and each daughter cell receives a copy. This process is called mitosis. As the cells divide, they become more and more specialized, until they eventually reach a point where they can no longer divide and are fully differentiated.
Differentiation is controlled by the genes that are active in a cell. Changes in gene activity can cause a cell to change its phenotype, or physical appearance. These changes can be caused by:
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I’m in the middle of a test help!!
Which process is responsible for changing the composition of rock?
O erosion
abrasion
chemical weathering
mechanical weathering
Answer:
C. chemical weathering
Explanation:
took test on edge 2020
What is the probability of getting the same numbers on 3 dice when they are thrown simultaneously?
Answer:
So, assuming the dice are 'fair' (that each of the six numbers has a probability of 1/6 of showing up on each of the dice), there is a probability of 1/36 that all three dice will show the same number.
Explanation:
The middle layer of the meninges named for its spider web-like appearance is the ____
Answer:
arachnoid
Explanation:
The middle layer of meninges is arachnoid, a thin layer resembling a cobweb with numerous threadlike strands attaching it to the innermost layer.
list four factors that can be varied to change the strength of the magnets
The four main factors which affect the strength of an electromagnet are as follows: the loop count, the current, the wire size, and the presence of an iron core.
What is an Electromagnet?An electromagnet is defined as the type of magnet in which the magnetic field is produced by an electric current that consists of wire wound in a coil. A current through the coil creates a magnetic field which is concentrated in the hole at the center of the coil.
The effect can be strengthened by winding a wire tightly around a powerful core made of magnetic material, such as iron.
Thus, the four main factors which affect the strength of an electromagnet are as follows: the loop count, the current, the wire size, and the presence of an iron core.
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How many Sodium (Na) are in 6NACI?
Answer: 6 Na
Explanation: because the number in front of the element shows how much is there is there in the compound.
For example
5ONa = there are 5 oxygens and Sodium’s in here
But this is different
5O₂Na = there are 7 oxygens and 5 sodium’ in here
How much amount of light does the Epipelagic zone get?
The epipelagic zone is also called the sunlight zone or sunlit zone. It refers to the depth zone that includes all depth of the ocean between the surface at 200 meters below the surface. Because of this, it gets plenty of sunlight where it can sustain the needs of photosynthetic organisms in order for them to survive. This zone is also the home of coral reefs.
ᴄᴀɴ ᴀɴʏʙᴏᴅʏ ɢɪᴠᴇ ᴍᴇ ꜰɪᴠᴇ ꜰᴜɴ ꜰᴀᴄᴛꜱ ᴀʙᴏᴜᴛ ᴛʜᴇ ᴀꜰʀɪᴄᴀɴ ꜱᴛʀᴀᴡ ᴄᴏʟᴏʀᴇᴅ ꜰʀᴜɪᴛ ʙᴀᴛ?
Which drug diffuses rapidly in the arterial vascular system and crosses the blood-brain barrier to produce amnesia, skeletal muscle relaxation, and hypnosis
Isoflurane is a medication that rapidly diffuses in the arterial circulatory system and penetrates the blood-brain barrier, causing amnesia, skeletal muscle relaxation, and hypnosis.
What exactly is the arterial vascular system?The vascular system, often known as the circulatory system, consists of the vessels that transport blood and lymph throughout the body. The arteries and veins transport blood throughout the body, supplying oxygen and nutrients to tissues and removing waste.
The vascular system is organized into four sections: arterial, capillary, venous, and lymphatic. There are three types of arteries: elastic (conducting) arteries, muscular (distributing) arteries, and arterioles. Venules and veins are the names given to venous vessels.
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Isoflurane is a drug that quickly permeates the blood-brain barrier, induces skeletal muscle relaxation, and induces hypnosis in addition to amnesia.
The artery vascular system: what is it exactly?The vessels that move blood and lymph across the body are collectively referred to as the vascular system, or circulatory system. Blood is carried by the arteries and veins as they move oxygen- and nutrient-rich blood throughout the body and remove waste.
The artery, capillary, venous, and lymphatic systems are divided into these four categories. Arterioles, elastic (conducting) arteries, muscular (distributing) arteries, and capillaries are the three different types of arteries. The terms for venous vessels are veins and venules.
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Your class is learning about genetic engineering and the use of model organisms. You are divided into groups to debate this topic. Construct a statement against the use of model organisms, such as the zebrafish, in this research
Statement against the use of model organisms, such as the zebrafish, in genetic engineering research: The use of model organisms, including the zebrafish, in genetic engineering research raises ethical concerns and may not accurately reflect the complexities and intricacies of human biology, limiting the relevance and reliability of the findings.
While model organisms like zebrafish offer advantages such as rapid reproduction, transparency of embryos, and genetic manipulability, it is important to acknowledge their inherent differences from humans. Genetic engineering research heavily relies on the assumption that findings in model organisms will directly translate to humans, but this oversimplification can lead to misleading results and potentially dangerous applications.
Model organisms lack the complexity and physiological intricacies of humans, making it difficult to accurately extrapolate findings to human biology. The variation in genetic makeup, gene regulation, and environmental factors between species can significantly impact how genetic modifications are expressed and function. This disparity raises concerns about the reliability and applicability of using model organisms as accurate representations of human biology, potentially leading to ineffective or even harmful outcomes when applied to human treatments or interventions.
Additionally, the use of model organisms in genetic engineering research raises ethical considerations. These organisms are subjected to invasive procedures, genetic manipulation, and potentially harmful interventions. While ethical guidelines are in place to ensure their welfare, questions about the moral implications of manipulating the genetic makeup of these organisms and the potential unforeseen consequences on their well-being still persist.
In conclusion, while model organisms like the zebrafish have contributed valuable insights to genetic engineering research, their limitations in accurately reflecting human biology and the ethical concerns surrounding their use warrant careful consideration. Relying solely on model organisms may hinder the progress and applicability of genetic engineering research in the context of human health and well-being.
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