Diaphragms create a physical as well as a chemical barrier to sperm.
So, the correct option is C.
A barrier technique of birth control uses a diaphragm or cap. It fits within the copulatory area of females and blocks sperm from penetrating the cervix (the entrance of your womb). In order to prevent sperm and egg fertilization from occurring, the diaphragm works as a physical and chemical barrier. For women searching for an affordable, effective birth control method that doesn't interfere with their body's hormonal balance, the diaphragm is an excellent choice. It is portable and may be carried anywhere in a bag, pocket, or backpack. It is possible to place many hours before intercourse, and neither party typically feels it.
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substances in food that neutralize the effects of free radicals are known as . multiple choice question. corpuscles antioxidants capillaries anticoagulants
Substances in food that neutralize the effects of free radicals are known as antioxidants (option B).
What are antioxidants?Antioxidants are substances that acts to slow or prevent the oxidation of another chemical.
Free radicals are an example of those chemicals and they are one or more unpaired electrons that are generally highly reactive.
In food substances, antioxidants help to neutralise the effect of those free radicals in the body. Examples of antioxidants are the group of vitamins that act against the effects of free radicals.
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organsims exposed for a long periods must be able to
Answer:
Remain for long periods at temperatures above 45 °C
(Not sure if this is what you're looking for)
alexi bangs their knee on a chair and feels pain from the injury. which neuron type is most likely responsible for their pain?
The neuron type that is most likely responsible for their pain is the sensory neuron.
What are neurons?Neurons are specialized cells in the body that form the cells of the nervous system.
There are three main types of neurons in the body and they include:
sensory neurons - these neurons receive information from the external environmentmotor neurons - these are neurons that relay information to the effector organs.interneurons - they serve as intermediaries between motor neurons and sensory neurons.Hence, sensory neurons receive sensations such as pain.
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what direct effects does water clarity have otters
Because clearer water will increase the availability of food for otters, water clarity and otter survival are positively and significantly connected.
We are aware that the degree of light penetration through the water column in an aquatic habitat is referred to as water clarity.
More light reaches aquatic plants in waters that are cleaner than others.
Other aquatic creatures, including otters, depend on aquatic plants for oxygen, food, and shelter.
In the sense that clearer water offers more food for otter, otter survival rates are related to the water clarity of their habitat.
As a result, there is a substantial positive correlation between water clarity and otter survival since clearer water will make it easier for otters to find food.
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In a process called ______, an rna copy of a gene sequence on the dna molecule is made.
In a process called transcription, an RNA copy of a gene sequence on the DNA molecule is made.
Transcription is the first step in gene expression. This involves copying the DNA sequence of a gene to create an RNA molecule. Transcription is done by an enzyme called RNA polymerase, which joins nucleotides together to form an RNA chain. All RNA in the cell is made by DNA transcription. This process has some similarities with the process of DNA replication described in the chapter.
Transcription begins by opening and unwinding small sections of the DNA double helix to reveal the bases of each strand of DNA. During transcription, the enzyme RNA polymerase uses DNA as a template to create pre-mRNA transcripts. Pre-mRNA is processed to form mature mRNA molecules that can be translated to build the protein molecules encoded by the original gene.
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please help me everyone has different answers and it's driving me nuts thank you
Answer:
I believe its in fact A but maybe not, I think a black hole will always be last in any cycle.
Write a scientific explanation describing all the processes by which the variations of traits develop within a human family. In your rebuttal, discuss how recessive traits can be expressed in
offspring but not parents.
Alleles can be rearranged within an organism's progeny as a result of recombination between homologous chromosomes during meiosis, random mating, random fertilisation, and mutation, which can create completely new alleles in a population.
What is a recessive trait ?Only when both of the related alleles are recessive do recessive features manifest themselves. The likelihood of the related trait manifesting itself is decreased if one of the alleles is dominant.
Only those with the genotype aa can express recessive traits, hence in order for a child to have a recessive trait, both parents must pass on one recessive allele. In contrast to a dominant cleft chin, a smooth chin is an example of a recessive genetic characteristic.Only those who are homozygous, or in possession of two copies of the allele, experience the consequences of recessive alleles. For instance, having blue eyes necessitates possessing two copies of the "blue eye" allele because the gene for blue eyes is recessive.Learn more about Recessive trait here:
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a dna segment of atcgat would be transcribed into a mrna sequence of which would in turn be translated into a sequence of
A DNA segment of ATCGAT would be transcribed into an mRNA sequence which would in turn be translated into a sequence of UAGCUA, AUCGAU.
Transcription is the process by which information on a DNA strand is copied into new messenger RNA molecules. The process of copying DNA into RNA is called transcription, and the process of using RNA to make proteins is called translation. The process of making mRNA from DNA, called transcription, takes place in the cell nucleus.
RNA polymerase moves along the DNA template strand and forms phosphodiester bonds. This binding joins the RNA nucleotides individually to form a single-stranded mRNA. This will synthesize the mRNA together with the thawed DNA portion. Translation takes place in ribosomes in the cell's cytoplasm, where the mRNA is read and translated into chains of amino acids that make up the synthesized protein.
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what kind of tissue is always present in the hypodermis
Hypodermis is the bottom layer of the body. It is mostly made up of connective tissue and the adipose tissue.
What is tissue ?Tissue is defined as the bundle of cells combined together in order to form a structural unit that are designed a function in order for the proper functioning of the body parts.
Adipose tissue is the fat storing tissue that is made up of fat storing cells and these cells are combined together to form a group called adipose tissue. These store the maximum fuel for the body. The hypodermis is the lower layer of the body that is made up of fat cells that are combined together and are called as subcutaneous layer.
Dermis is the combined of connective tissue where it is made up of collagen, elastic tissue and the extracellular tissue that together makes up the connective tissue of the hypodermis.
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which animal has the least amount of available energy
Answer: rabbit or fox im not sure
Answer: if you mean consumers like primary, secondary, and tertiary consumers then the answer is tertiary
Explanation: gets less energy the more it's consumed
what genders use fentanyl the most
The gender that makes use of fentanyl the most is likely the male.
What is gender?Gender is the social classification of an individual into a male or a female based on their sense of identity.
Fentanyl is defined as the type of drug called opioid that is used to relieve pain and can be used as an anaesthetic drug in a combined drug formula.
When Fentanyl is used for a long time, the development of dependency may arise where an individual becomes addicted to the drug.
According to statistics, it has been noticed that males are dependent on Fentanyl than female in a ratio of 1.5:1 when compared with females.
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Plants conduct gas exchange in photosynthesis by bringing in carbon dioxide and releasing oxygen through openings called.
Answer: stomata
Explanation:
Sunlight energizes electrons that pass into an electron transport chain where they help move ______ from low to high concentration. The electrons are loaded onto ______ at the end of the photosynthetic electron transport chain.
Sunlight energizes electrons that pass into an electron transport chain where they help move H+ from low to high concentration. The electrons are loaded onto NADP+ at the end of the photosynthetic electron transport chain.
Many dye molecules in each photocenter act as antennas absorbing light and transferring the energy of excited electrons to chlorophyll molecules that act as reaction centers. The reactive center chlorophyll then transfers its high-energy electrons to an acceptor molecule in the electron transport chain.
This is where the light comes into play. Light absorbed during photosynthesis is used to energetically boost electrons uphill. From there, it rolls downhill through the electron transport chain, releasing energy that can be used to form ATP. Light excites electrons from the chlorophyll pair and transfers them to the primary electron acceptor. Then we need to exchange the excited electrons.
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How does evolution play a role in stability of an ecosystem
Evolution plays an active role in the stability of an ecosystem by rescuing the species from extinction with the help of natural selection.
What is Evolution?Evolution may be defined as a complete methodology that deals with the gradual change over many generations. Due to this, the number of species of animals, plants, or insects slowly changes according to the environment and modifies their physical characteristics.
In the ecosystem, each and every species must remain until it can get resources even in small amounts as well but it has under the process of extinction once resources are restricted.
During this period, species perform all possible events and modify their characteristics in order to survive in the ecosystem. These modifications are the attributes of evolution.
Therefore, evolution plays an active role in the stability of an ecosystem by rescuing the species.
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I need your help, the retake is tomorrow
The latitude that has the greatest insolation based on the position of the earth as shown is 90°S,
What is Insolation?Insolation can be defined as the given amount of radiation received from the Sun by any given place on the earth at a particular time.
The amount of Insolation received by any place on the earth is determined by the angle of insolation as well as by the latitude of the place on earth.
The angle of Insolation is the angle at which the Sun's radiation hits a place on the surface of the earth.
Places on the Equator, Latitude 90°N 90°S, generally receive the greatest amount of solar insolation.
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Why did the runner's muscle cells undergo fermentation during parts of the marathon?
(A) His body was lacking water to accept electrons.
(B) His body had excess glucose, so it could not use oxygen.
(C) His muscle cells did not have enough O2 for cellular respiration to occur.
(D) His muscle cells needed lactic acid.
The runner's muscle cells underwent fermentation during parts of the marathon because his muscle cells did not have enough O₂ for cellular respiration to occur; option C.
What is fermentation?Fermentation is the process by which sugar molecules are broken down in the absence of oxygen to produce energy for use by the cell.
Fermentation is a form of anaerobic respiration.
The products of fermentation vary depending on the organism.
In yeast and bacteria, the products of fermentation are alcohol and carbon dioxide, and then energy.
In higher organisms such as mammals, the products are lactic acid and energy.
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What insect lends its name to the concept that tiny actions can have massive consequences?.
Butterfly insect lends its name to the concept that tiny actions can have massive consequences.
The butterfly effect is the theory that small things can have non-linear effects on a big system. The concept is illustrated by a butterfly fluttering its wings and generating a typhoon. Of obviously, a single act like a butterfly flapping its wings cannot generate a typhoon.
Lorenz gained a tremendous insight into how nature works as a result of the unexpected outcome: little adjustments can have big implications. After Lorenz proposed that the flap of a butterfly's wings may eventually generate a tornado, the theory became known as the "butterfly effect."
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what type is synovial joint is highlighted?
Synovial fluid is present in the synovial cavity/joint. An inner layer called the synovial membrane and an outer layer called the fibrous membrane make up the joint capsule, which structurally holds the bones together.
A type of synovial joint that allows for axial rotation is a pivot joint, commonly referred to as a rotary joint. The concave surface of a second bone and an adjacent ligament form a ring around the rotating bone. The zygomatic bone is shown in blue, the maxilla bone is highlighted in red, the nasal bone is highlighted in yellow, the lacrimal bone is highlighted in purple, the mandible is highlighted in green, and the skull is highlighted in grey.
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Because rapid weight loss stimulates too much hunger, slows the metabolism, and can lead to lean tissue losses, losing __________ pounds per week should be considered a weight loss success.
Because rapid weight loss stimulates too much hunger, slows the metabolism, and can lead to lean tissue losses, losing 0.5 to 1 pounds per week should be considered a weight loss success.
What is rapid weight loss?
A rapid weight loss diet is one in which, over a period of weeks, you lose more than 2 pounds (1 kilogram) each week. You must consume extremely few calories in order to lose weight thus rapidly.
Unexpected weight loss is a significant decline in body weight that happens despite a person's lack of weight loss intent. Diet, exercise, or lifestyle changes are not the cause of the weight reduction. A weight loss of 10 pounds or more, or 5% of body weight, during a six- to twelve-month period is regarded as "unexplained."
Unexpected weight loss may be a sign of a serious sickness or condition. This makes it crucial to get medical help if you (or a member of your family) experience weight loss that cannot be explained.
Hence, 0.5 to 1 pounds per week should be considered a weight loss success.
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explain how animal respiratory organs have evolved to increase diffusion rates by manipulating these variables: distance of diffusion, concentration gradient and area for diffusion.
The amount of rate of diffusion of gases in respiratory organs is increased by decreasing the distance of diffusion, increasing the concentration gradient, and increasing the area for diffusion. This is explained by the Fick' law as described below,
Q = DA∆P/L, where D is the diffusion coefficient, A is the surface area, delta P is the concentration gradient and L is the distance of diffusion.
What is concentration gradient?
A concentration gradient exists when one area has a higher particle concentration than another. Particles in passive transport will diffuse along a concentration gradient from a higher concentration to a lower concentration until they are evenly distributed.
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There was once a concept where if you left
rotting food out long enough, scavengers would
randomly appear. What was this called?
Spontaneous Combustion
Random Generation
Spontaneous Generation
Random Combustion
There was once a concept where if you left rotting food out long enough, scavengers would randomly appear. This called is Spontaneous Generation
Scavengers and decomposers are what?Some animals consume carrion or dead animals. We refer to them as scavengers. They aid in the reduction of biological material to smaller fragments or breakdown. Decomposers then consume these smaller bits. Eaten by decomposers, dead materials are broken down into their component chemicals.
The heterotrophic creatures known as fungi do not make their own food. For nutrition, some of them eat the corpses of plants and animals, which contributes to the breakdown of organic waste. So they are referred to as natural scavengers.
Dead plants and animals are decomposed by decomposers. They also degrade other creatures' waste. Any ecosystem needs decomposers to function properly. If they weren't there in the environment, plants wouldn't receive vital nutrients, and waste and dead materials would accumulate.
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which factors contribute to increased size of population
When demographers attempt to forecast changes in the size of a population, they typically focus on four main factors: fertility rates, mortality rates (life expectancy), the initial age profile of the population (whether it is relatively old or relatively young, to begin with) and migration.
Which hormone is the one that is released to help relax the body and signals that it is time to go to sleep?.
neurons from the _______ project to the hypothalamus and the _______.
Neurons from the accessory olfactory bulb project to the hypothalamus and the amygdala.
The primary olfactory cortex's piriform cortex connects the main olfactory bulb to the amygdala, and the major olfactory bulb directly projects to particular amygdala regions. The hippocampus receives olfactory data from the amygdala.
While the accessory bulb receives olfactory afferents from receptors in the vomeronasal organ, the main olfactory bulb receives them from the general olfactory mucosa. The auxiliary bulb projects to the amygdala, whereas the main bulb sends signals to the pyriform cortex and olfactory tubercle. The pyriform cortex and olfactory tubercle are further connected to the medial forebrain bundle, while the amygdala is connected to the medial preoptic area and medial hypothalamus.
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the terms pyrexia febrile and pyrogenic all refer to
The terms pyrexia febrile and pyrogenic all refer to fever. The Greek root pyros, which meaning "fire" or "burning heat," is where the term "pyrexia" gets its name. Fever just has a different name in medicine.
A temperature that is higher than normal because the body's internal thermostat has been raised is referred to as a fever (also known as pyrexia). With sources citing ranges between 37.2 and 38.3 °C (99.0 and 100.9 °F) for people, there is no single accepted upper limit for normal temperature. Photo representing pyrexia febrile and fever. Nevertheless, depending on how and where the temperature is taken, the following temperatures are typically considered to be a fever: more than 100.4 °F (38 °C) in the rectus above 100°F (37.8°C) in the mouth Over 99°F (37.2°C) in the axilla (underarm) In general, a temperature measured with a mouth thermometer (oral temperature) of 100 F (37.8 C) or greater is regarded as a fever.
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The characteristics of metabolic syndrome include?
Greater circumference, high blood pressure, Having elevated blood sugar along with other diabetic symptoms, The features of metabolic syndrome include obesity.
high blood pressure (vessels that carry high blood pressure from the heart to the rest of the body). Individuals will experience different symptoms, but headache and inexplicable weariness are common.
Obesity is a medical condition, occasionally referred to as a disease caused by metabolic syndrome, in which excessive or excess body fat has built up to the point where it may be harmful to one's health. metabolic syndrome A condition known as obesity involves having too much body fat. Obesity is more than simply a visual issue. It's a medical condition that raises the chance of various illnesses and health issues, like heart disease, diabetes, high blood pressure.
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Ensuring that the dna code is maintained during dna replication and cell is one of the essential effects of dna structure.
Ensuring that the DNA code is maintained during DNA replication and cell division is one of the essential effects of DNA structure.
What is the DNA?DNA is a double helical structure found in the nucleus of a cell that contains information about the cell and which directs the activities of the cell.
The information about the cell that is contained within the DNA is known as the gene.
This information is passed on to daughter cells when the cells divide during the process of cell division.
The information stored in the DNA is accurately copied during the process of cell division, and the DNA has mechanisms that ensure this.
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Complete question:
Ensuring that the DNA code will be maintained during cell growth and cell _________ is one of the two essential effects of the structure of DNA.
where are calcium phosphate muineral found in bone relative to collogen
Calcium phosphate minerals and collagen are closely connected to each other and intertwined with the bones.
Collagen is the protein that provides a soft framework and calcium phosphate minerals adds strength to the framework and this combination makes the bones strong and flexible to withstand stress. It has been hypothesized that type I collagen stereochemistry underlying the binding of calcium and phosphate ions at places inside collagen hole and overlap areas, which results in the nucleation of crystals. Calcium and phosphate ions are the main components of apatite.
This process is known as bone mineralization .Osteoblasts, also known as bone forming cells, assist in the production of calcium phosphate crystals during the mineralization process of bone. These crystals are then aligned in the collagen-based fibrous matrix. Humans engage in the process of calcification, or the mineralization of bone, throughout their entire lives.
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where would you dispose alumina after completing the chromatographic separation?
The alumina after completing the chromatographic separation would be disposed of in solid Hazardous chemical waste.
Aluminum is on the Hazardous Substance List. Because it is flammable in powder form, this chemical is listed as a Special Health Hazard Substance on the list.
Waste that poses a threat to our health or the environment is referred to as hazardous waste. Hazardous waste that is improperly stored or disposed of frequently pollutes surface water and groundwater supplies, which can also be a source of dangerous land pollution. It's possible that people who live in homes built close to old, defunct waste disposal facilities are particularly at risk.
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What do you notice about the onion root cells at 40X power?
The chromosomes that are housed in the nucleus are among the components that can be seen on the 40X onion tip slide.
Multiple cells are in various states of mitosis as an onion root tip grows quickly. You can notice mitosis when looking at slides that have been kept of the onion root tip. You can only observe cells using a low-power lens.
A lot of cells will be in various states of mitosis in an onion root tip because it is a portion of the onion that grows quickly. The chromosomes of individual cells can be plainly seen when the onion root tips are prepared and crushed in a way that enables them to be flattened on a microscope slide.
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