How is the sickle-cell allele maintained through natural selection? A.) Individuals with two recessive alleles have very high rates of reproduction. B.) Mosquitoes that pass along the parasite also pass on the recessive allele. C.) Individuals with two dominant alleles have very low rates of reproduction. D.) Heterozygous individuals pass the dominant and recessive alleles to offspring.
the answer is d as in doggy
External respiration is the exchange of respiratory gases between the organism and ________. it takes place via a ___________ membrane with thin ____________. internal respiration is the exchange of gases between __________ and the _________.
External respiration is the exchange of respiratory gases between the organism and the outer environment.
It takes place via a respiratory membrane with thin moist epithelial cells.
Internal respiration is the exchange of gases between blood and the cells.
The process of diffusion of gases (oxygen and carbon dioxide) in and out of the blood is respiration, internal and external respiration are the types of respiration.
Which nutrient aids in your body’s growth, everyday functioning, and maintenance?
Which question can be answered by science?
A. Should the government regulate the use of shopping bags?
B. Why do you think people should use paper bags?
C. Should people be required to reuse plastic bags?
D. What is the effect of paper bags on the environment?
Answer;
D. What is the effect of paper bags on the environment?
This is an example of a question that can be answered by science.
Explanation;
To answer a question science constructs theories, and then compares them to empirically-collected data, and decides which theories provide better fits to the data. For example to the question, "What is the effect of paper bags on the environment?" can be answered using science, by developing a hypothesis, that paper bags have a negative effect on the environment, then collecting data experimentally and then deciding whether the hypothesis is acceptable.
What is the name for the measure of a drug's relative safety for use, computed by the ratio of the lethal dose for 50 percent of the population over the effective dose?
The patient is awake many times during brain surgery. in an operation to remove a brain tumor, dr. judson accidentally poked a certain area of the cerebrum, whereupon the patient said, "why is my arm being tickled?" what area was poked?
Emts respond to a known heroin abuser who is unresponsive. if they give naloxone (narcan) to this patient, the emts should recall that:
Answer:
Naloxone/Narcan administration may cause agitation and/or withdrawal symptoms.
Explanation:
Remember that the main purpose of administering Narcan/Naloxone is to correct respiratory depression in a patient. Prior to administering the medication, a patient must meet three primary criteria:
1. Pinpoint pupils ( evident in a patient with Opiod overdose)
2. Unconsiousness
3. Respiratory depression (cannot breath on their own)
Once those three criteria have been confirmed, under medical control guidance, you can administer Narcan/Naloxone (per proper packaging instructions).
The purpose of this medication is NOT to bring someone out of uncounsiousness. However, if too much is administered, there is a significant chance that the patient can become consious. Therefore, the patient can eitherr be 1) combative and angry because you "took him/her out of their high" or 2) they can be grateful that you helped them out. That being said, you want to be aware that if the patient is combative, your safety is at risk and you will need to involve law enforcement.
Hope this helps!
What parts of your body should have protection whenever you fire a handgun?
The dna of ______ floats freely around the cell's cytoplasm.
Discuss the difference between chronic and acute pain
A babies iron stores are depleted by approximately how many months after birth?
Why does rwanda have the highest percentage of female lawmakers in the world?
The active ingredient in marijuana, tetrahydrocannabinol (thc) is stored in the body's ________ cells.
THC, the active ingredient in marijuana, is stored in the body's fat cells.
Explanation:The active ingredient in marijuana, tetrahydrocannabinol (THC), is primarily stored in the body's fat cells. THC is a lipid-soluble molecule, meaning it can easily dissolve in fat. When someone consumes marijuana, THC is absorbed into the bloodstream and eventually accumulates in fatty tissues throughout the body, including the brain, liver, and adipose tissue.
Because THC is stored in fat cells, it has a long elimination half-life compared to other drugs. This means that THC can remain detectable in the body for an extended period, even after the immediate effects of marijuana have worn off.
In summary, THC is stored in the body's fat cells, allowing it to be gradually released into the bloodstream over time.
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From the time a fertilized egg is implanted in a mother's uterus until about the eighth week of pregnancy, the developing organism is called a/an
A. placenta.
B. embryo. ( I think its this one.not sure.)
C. zygote.
D. fetus.
The jellylike liquid located in the posterior chamber of the eye is the
The answer to this question is Vitreous Body. The Vitreous Body is a jelly form substance that fills the space on the eyeball of humans. The vitreous body also helps transmit light in the retina and this also functions to help maintain the shape of the eyeballs and make it stay in place.
_______ feathers shape the bird and give rigidity to the wings. A. Contour B. Crop C. Down D. Powder
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Where on Earth's surface might you be if you are experiencing the trade winds? Explain how air pressure, temperature, and the Coriolis effect in movement and direction of thesewinds.
Bacteria need the right kind of food to grow on. generally, they prefer foods that are high in protein, slightly acidic, and _______.
Bacteria optimally grow on high-protein, slightly acidic, and moist substances.
Explanation:Bacteria grow best on substances that are rich in protein, slightly acidic, and moist. Moist environments help bacteria to maintain the necessary solute concentration within their cells and they also aid in the transport of nutrients into the cell. Foods that contain a high protein content include meat, which makes it a prime substrate for bacterial growth.
The acidity level in foods is essential for bacterial survival. Most bacteria cannot survive in highly acidic environments, and hence they prefer slightly acidic foods. This is one reason why foods like lemon and vinegar can be used as natural preservatives to slow the growth of bacteria.
Cellular processes such as respiration and excretion also occur more efficiently in moist conditions. In summary, bacteria are microorganisms that prefer high protein, slightly acidic, and moist environments to grow best.
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_____ fungus increases the area of the root for absorbing water and minerals from the soil.
1.Parasitic
2.Mold
3.Mycorrhizae
4.None Of The Above
A healthcare provider prescribes a diagnostic workup for a client who may have myasthenia gravis. what is the initial nursing objective for the client during the diagnostic phase?
Final answer:
The initial nursing objective for a client being diagnosed with myasthenia gravis is to ensure safety, manage symptoms, and support during diagnostic tests. Nurses must focus on assessing respiratory function, swallowing, applying the 'assess, document, re-assess, and advocate' strategy, educating the client, and monitoring responses to diagnostic interventions.
Explanation:
Initial Nursing Objective for Myasthenia Gravis Diagnostic Phase
The initial nursing objective for a client undergoing a diagnostic workup for myasthenia gravis is to ensure the client's safety and to manage symptoms during the diagnostic tests. Myasthenia gravis is an autoimmune disorder that affects the neuromuscular junction, leading to a reduction in the number of acetylcholine receptors and resulting in muscle weakness. During the diagnostic phase, it is crucial that nurses assess and monitor the client's respiratory function and ability to swallow, as these can be significantly affected by muscle weakness. The application of the “assess, document, re-assess, and advocate” strategy ensures a thorough evaluation of symptoms and effective communication with the healthcare provider for timely intervention.
It is also imperative for the nurse to educate the client on the nature of the diagnostic tests, such as the administration of an inhibitor of acetylcholinesterase, which can temporarily restore muscle contractility by allowing more acetylcholine (ACh) to remain at the neuromuscular junction. Monitoring the client's response to these tests is essential for accurate diagnosis and to facilitate the initiation of an appropriate treatment plan.
The entry of bile and pancreatic juice into the duodenum is controlled by
The hepatopancreatic sphincter (sphincter of Oddi) regulates the entry of bile and pancreatic juice into the duodenum. The hormones secretin and CCK, along with the parasympathetic nervous system, control the secretion of these fluids that are essential for digestion.
The entry of bile and pancreatic juice into the duodenum is controlled by the hepatopancreatic sphincter, also known as the sphincter of Oddi. This sphincter acts as a gatekeeper to regulate the flow from the bile duct, carrying bile from the liver, and from the main pancreatic duct, carrying pancreatic juice from the pancreas. The release of digestive enzymes, alkaline bicarbonate, and bile into the duodenum is a crucial process for neutralizing acidic chyme and aiding in the digestion of fats, proteins, and starches.
The hormones secretin and cholecystokinin (CCK) play significant roles in this regulatory process. Secretin is released when acidic chyme enters the duodenum, prompting the pancreas to release bicarbonate-rich pancreatic juice. CCK, on the other hand, is stimulated by the presence of proteins and fats in the duodenum, leading to the secretion of enzyme-rich pancreatic juice and the contraction of the gallbladder to release bile. Lastly, the parasympathetic nervous system, through vagal stimulation, also influences pancreatic secretion during the cephalic and gastric phases of gastric secretion.
A student makes the analogy that the cardiovascular system is like a highway. Why is this a good analogy?
Answer:
The correct answer is that the blood transports materials to and from distinct parts of the body.
Explanation:
As an essential biological fluid, blood flows spontaneously in the blood vessels and the heart, mainly via the pumping of the heart. It comprises plasma, aqueous fluid, and various cells like red blood cells that offer it its color.
The blood helps in the mediation of nutrients and oxygen, which are essential for performing important procedures of the body. It also assists in translocating molecules and cells of the immune system to various tissues, and to disperse hormones all through the body.
What is the outcome of mitosis?
A. two identical nuclei
B. two identical spindles
C. two identical chromatids
Answer:
The correct answer is option A. two identical nuclei.
Explanation:
Mitosis is a type of cell division during which two identical daughter cells are produced from a single parent cell.
During mitosis, replicated chromosomes are divided into 2 new nuclei, It gives rise to identical cells with the same number of chromosomes.
During interphase, DNA of the cell is replicated and at the last of interphase, the original DNA and a copy of this DNA are in the nucleus of the cell.
In the M phase or mitotic phase, the nuclear DNA of the cell condenses into chromosomes and is pulled apart by the mitotic spindle, made out of microtubules. Four phase takes place during mitosis: prophase, metaphase, anaphase, and telophase. IT results in two identical daughter cells after cytokinesis.
Thus, the correct option is two identical nuclei.
The outcome of mitosis is two identical nuclei
What is the outcome of mitosis?The outcome of mitosis is the division of a cell into two daughter cells, each containing an identical set of chromosomes. During mitosis, the replicated chromosomes are separated and distributed equally into the daughter cells, resulting in the formation of two identical nuclei. This process ensures that each daughter cell receives the same genetic information as the parent cell, allowing for growth, tissue repair, and asexual reproduction in organisms.
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How does a plant benefit from mycorrhizae?
Answer: By symbiotic association
Explanation: Mycorrhiza can be defined as the symbiotic association between the plant and fungus.
The term defines the function of fungus in the plant rhizosphere present in the roots of the plant. Its main function is to provide nutrition to the plant body.
This kind of association is mutualistic. In some cases it can have parasitic association.
Trichodesmium is a nitrogen-fixing cyanobacteria. Why might this cyanobacteria be important to other organisms in nitrogen-poor waters?
Answer:
The answer is Trichodesmium is an important source of usable nitrogen in the nutrient-poor waters and represents almost half of the nitrogen fixation in marine systems.
Explanation:
Nitrogen fixation is the process of converting atmospheric diatomic nitrogen into biologically usable forms of nitrogen, such as ammonium oxides and nitrogen. Trichodesmium is the only known diazotropic capable of fixing nitrogen in daylight in aerobic conditions, being the main diazotropic in marine pelagic systems and an important source of usable nitrogen in the nutrient-poor waters where it lives. Trichodesmium fixes nitrogen on a scale that represents almost half of the nitrogen fixation in marine systems worldwide.
Is it true that the assyrian people lived in north of mesopotamia near the euphrates river?
Red blood cells contain the protein . when red blood cells are old or injured, the spleen breaks them down and converts the heme from their hemoglobin into . the liver further converts it into , which is stored in the . when you eat fat, the cells of your small intestine release the hormone . contraction of the forces the into the , where it emulsifies fats and aids in their digestion.
Red blood cells contain the protein HEMOGLOBIN. When red blood cells are old or injured, the spleen breaks them down and converts the heme from their hemoglobin into a GREEN PIGMENT CALLED BILIVERDIN. The liver further converts it into BILIRUBIN WHICH IS RELEASED INTO THE PLASMA AND IS RECIRCULATED IN THE LIVER AND IS THEN BOUND INTO ALBUMIN which is stored in the GALLBLADDER AND EXCRETED IN THE DIGESTIVE SYSTEM IN THE FORM OF BILE. When you eat fat, the cells of your small intestine release the hormone UROBILINOGEN where contraction of them forces them into the SMALL INTESTINE where it emulsifies fats and aids in their digestion.
Answer:
The correct answer given below:
Explanation:
Red blood cells contain the protein Haemoglobin. When red blood cells are old or injured, the spleen breaks them down and converts the heme from their hemoglobin into Bilirubin. The liver further converts it into Bile which is stored in the Gall bladder. When you eat fat, the cells of your small intestine release the hormone Cholecystokinin. Contraction of the Gall bladder forces the Bile into the Duodenum, where it emulsifies fats and aids in their digestion.
A disease that appeared recently and is rapidly increasing or threatening to increase in the near future is referred to as:
When you are working with chemicals you should _____. Select all that apply.
1. wear and apron and googles
2.use a ventilation hood
3.know the location of the fire blanket and fire extinguisher
4.wash the area with a 10% bleach solution
Answer: 1. wear an apron and googles
2.use a ventilation hood
3.know the location of the fire blanket and fire extinguisher
Explanation:
Chemicals in the laboratory if used inappropriately may cause accident or hazard. Therefore, special measures should be taken to avoid any loss of skin, clothes or lives working in a laboratory.
Following are the measures that should be taken while working with chemicals:
1. Wear an apron and googles: This will prevent the cloths from damage which may be caused if any accidental splash occurs. The goggles will protect the eyes from the fumes which may liberate during the reaction.
2. Use a ventilation hood: This will absorb the air which may consists of toxic gases produce after the reaction.
3.Know the location of the fire blanket and fire extinguisher: The fire blanket or fire extinguisher can help in preventing the damage caused due to accidental fire during the experimentation process.
Dhara was recently in a car accident. her doctor told her that she has frontal lobe damage. how will this damage affect dhara? she will not recognize others. she will have memory loss. she will not experience fear. she will be less self-aware.
Dhara was recently in a car accident. her doctor told her that she has frontal lobe damage she will have memory loss. The correct option is B.
Higher cognitive skills, personality, decision-making, and memory retrieval are all significantly influenced by the frontal lobe.
Memory deficits, particularly in the capacity to recall and retrieve information, may result from damage to this region.
Dhara can have trouble remembering recent experiences, creating new memories, or recalling knowledge she has already gained. Her daily activities and social relationships may be impacted by this.
Thus, the correct option is B.
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Your question seems incomplete, the probable complete question is:
Dhara was recently in a car accident. her doctor told her that she has frontal lobe damage. how will this damage affect dhara?
A. she will not recognize others.
B. she will have memory loss.
C. she will not experience fear.
D. she will be less self-aware.