Answer:
medulla. cellular column running through the center of the hair. mitochondrial DNA. DNA present in small structures (mitochondria) outside the nucleus of a cell.
Explanation:
The difference between the image provided by each eye is called
a) color blindness
b) blind spot
c) adaptation
d) binocular disparity
Answer:
D
Explanation:
retinal disparity. the difference between the images provided by the two retinas. When the images are brought together in the brain, they provide a sense of depth.
Should I start wearing diapers?
Answer: DIAPERS
Explanation: DIAPERS
F ing diapers reeeeeeeeeeeeeee
Technology allows cyber bullies to easily hide their
messages
identities
friends
families
Identities most likely.
they wouldn't want to hide their messages and their identity implies their friends and families too
Technology allows cyber bullies to easily hide their identities.
What is technology?"The scientific knowledge and/or equipment that is needed for a particular industry, etc."What is cyber bully?"To bully online by sending or posting mean, hurtful, or intimidating messages, usually anonymously"What do you mean identity?"The body of information about an individual, organization or electronic device that exists online."The cyber bullies do not want to get caught so they try to hide their identity.Hence, the correct option is identity
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How can exercise improve social and mental health?
The absolute refractory period of an action potential:___________
a. prevents summation of action potentials
b. allows a neuron to ignore a second signal sent that closely follows the first
c. ensures one-way travel down an axon
d. A and B
e. A, B, C
Answer:
e. A, B, C
Explanation:
An action potential is a short event during which the membrane potential of an excitable cell increases and then falls rapidly. Membrane potentials correspond to potential differences across the membrane of excitable cells.
The absolute refractory period (P-RA) during which any stimulation is ignored, regardless of its intensity corresponds to the activation of fast sodium channels (quick response fibers) or calcium-sodium channels (slow response fibers). It begins in phase 0 of the action potential and ends in the repolarization phase (phase 3 for a fast fiber) when the membrane potential is sufficiently electronegative to restore the reactivation of these channels. It corresponds on the ECG to the interval between the onset of QRS and the top of the T wave.
The relative refractory period (P-RR) during which the cell is hypoexcitable. It corresponds to the start of the reactivation of the ion channels. Reactivation is incomplete and the action potential that results from stimulation during this period has unusual properties that expose conduction problems (block in phase 3) and may cause cells to desynchronize. Thus, an extra-stimulus which falls on the relative refractory period (R / T phenomenon) could cause ventricular tachycardia or ventricular fibrillation.
Thus; the absolute refractory period of an action potential prevents summation of action potentials, allows a neuron to ignore a second signal sent that closely follows the first and ensures one-way travel down an axon .
which is not a common long term effect of excessive alcholol consumption
Answer:
Digestive problems
Explanation:
write your reflection that shows your participation in implementing an environmental project such as building and maintaining home garden or conducting a war on waste campaign
Answer:
I participate in environmental projects in my area.
Explanation:
I participate in implementing many environmental projects such as building and maintaining home garden or conducting a war on waste campaign in my area in order to clean and beautify the environment. due to building and maintaining home gardens, the environment becomes very beautiful while on the other hand, participate in waste campaign makes the environment clean from all waste material.
Please please please do it fast
Answer:
walking
jogging
weight lifting
yoga
dancing
body composition
coordination
Explanation:
Which is a long-term effect of sun exposure?
a bright red rash after sitting in the sun
a stinging burn that is sensitive to touch
a change in skin complexion or sallowness
a cluster of freckles appearing on the skin
A change in skin complexion or sallowness is a long-term effect of sun exposure.
What are the consequences of excessive sun exposure?The consequences of excessive sun exposure may be associated with health problems such as cancer.
Sun ultraviolet (UV) radiation is a mutagenic agent and therefore we need to avoid direct sun exposition at harmful hours.
In conclusion, a change in skin complexion or sallowness is a long-term effect of sun exposure.
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Answer: C: a change in skin complexion or sallowness
Explanation: good Bye :)
Elow is a list of functions performed by organisms. Examine the list, then answer the question that follows. gas exchange intake of nutrients disposal of wastes stimulus response reproduction How do these functions compare between single-celled and multi-celled organisms?
Hello. You forgot to enter the answer options. The options are:
A. Single-celled organisms can perform all of these functions, while multi-celled organisms can perform only some of these functions.
B. Single-celled organisms must perform all of these functions with one cell, while multi-celled organisms can have specialized cells for different functions.
C. Single-celled organisms can perform only some of these functions, while multi-celled organisms can perform all of these functions.
D. Neither single-celled organisms nor multi-celled organisms can perform all of these necessary functions.
Answer:
B. Single-celled organisms must perform all of these functions with one cell, while multi-celled organisms can have specialized cells for different functions.
Explanation:
As you already know, single-celled organisms have only one cell and must use it for all the metabolic processes you need to perform to survive. As this cell is not, often specialized in the process it needs to do, the process often takes a long time.
On the other hand, multicellular organisms have a variety of cells divided into several groups and with identical functions. In this case, the metabolic processes are done more quickly and often are done simultaneously.
Most fats are , which are an important energy source that form much of the fat stored in the body.
Answer:
triglycerides
Explanation:
Which of the following options all contain calories?
Fat, minerals, vitamins
Vitamins, protein, carbs
Carbs, fat, protein
Protein, minerals, water
Vitamins, water, minerals
Fat, water, carbs
Answer:
Carbs, Fat, and Protein
Explanation:
I took a food health class in high school
In 2018, in which state was human trafficking was the most prevalent?
Texas
Florida
California
New York
The state with the most human trafficking cases in California.
According to the Countrywide Human Trafficking Hotline, 10,949 cases of human trafficking have been reported in the u.s. in 2018. According to the hotline, California is one of the most important websites of human trafficking in the USA. In 2018, 1,656 instances of human trafficking have been reported in California.
How standard is human trafficking inside the US?The global hard work employer (ILO) estimates that at least 12.3 million people are sufferers of forced exertions at any given time, 2.4 million of whom toil in forced labor as a result of trafficking. The U.S. Department of country estimates that 14,500 to 17,500 people are trafficked every year.
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Question 13 of 40
Dr. Wilson's listening to a patient share her symptoms. Which of the following
responses demonstrates that Dr. Wilson's an effective communicator?
A. "Let me give you my opinion."
O B. "You should be eating better and exercising more in order to avoid
illness."
C. "How come you chose not to make an appointment sooner?"
D. "Describe how you're currently feeling."
SUBMIT
Answer:
d
Explanation:
HELPPPPP!!!
Read the scenario and answer the question that follows.
Elaine has just been hired to work in the maintenance department of a hospital, providing maintenance support services.
What are some of the responsibilities that Elaine can expect to have in this new position?
cleaning, housekeeping, and taking inventory of supplies
scheduling the doctors’ appointments with patients
resolving conflict among staff members
maintaining the safety of medical machinery
Answer: Either A or D. I think it's A, though.
Explanation: If she's new, logically she wouldn't be trusted with life saving devices. Because if she's cleaning it, and messes something up, she could possibly kill a patient. So, cleaning would be better for her. Therefore, A.
If it's wrong tho choose d i guess
Jordan is being sexually harassed at school. Which effect is he most likely experiencing?
*SELECT ONLY ONE*
fear
trouble eating
regressive behavior
consistent grades
Answer:
Regressive behavior
Explanation:
A-b-C have nothing to do with being sexually harassed at school
The effect that is most likely experienced by Jordan after being sexually harassed at school is regressive behavior. Thus, the correct option is C.
What is Sexual harassment?Sexual harassment may be defined as a type of harassment that makes someone feel upset, scared, offended, or humiliated through such sexual or gender included abusive or offensive words.
Fear, trouble eating, and consistent grades are not associated with the effect that is most likely experiences through the activity of sexual harassment. These qualities are not associated majorly with the impacts of sexual harassment.
Regressive behavior involves an action made by a person that involves a return back to the most frequent and earlier with less advanced stage of development. It persistently alters the psychology of an affected individual.
Therefore, the effect that is most likely experienced by Jordan after being sexually harassed at school is regressive behavior. Thus, the correct option is C.
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I need help putting these steps in order.
Ca2+ pumps restore Ca2+ to SR → relaxation!
Action potential travels down the axon in response to nerve stimulus.
Myosin binds to actin
Action potential causes Ca2+ release from SR
Myosin pulls actin chain along and Sarcomere shortens → contraction!
Action potential travels down the T Tubule and into Sarcoplasmic Reticulum (SR)
Ca2+ binds to troponin. Troponin moves tropomyosin uncovering myosin binding site on actin
Answer:
b
Explanation:
Which of the following statements is true about photosynthesis and cellular respiration?
Photosynthesis takes place in the nucleus of the cell.
Cellular respiration takes place in the mitochondria of the cell.
Only photosynthesis occurs in all living things.
Both photosynthesis and cellular respiration occur in all living things
Answer:
b is correct
option 'a' is wrong photosynthesis take place in chloroplast
Cellular respiration takes place in the mitochondria of the cell, hence option B is correct.
The metabolic method through which cells liberate energy from the chemical interactions of food molecules and supply that energy for the vital functions of life is known as cellular respiration. Cellular respiration is a necessary function of all living cells.
Water and carbon dioxide are changed into oxygen and glucose during photosynthesis. The plant consumes glucose and produces oxygen as a byproduct.
Oxygen and glucose are transformed into water and carbon dioxide during cellular respiration. By-products of the process include carbon dioxide, water, and ATP, which is turned into energy.
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What is the correct definition of nutrition?
Answer: the study of nutrients in food, how the body uses them, and the relationship between diet, health, and disease.
Explanation:
What is obesity? How is it different from being overweight?
Answer:
the term "obese" generally means a much higher amount of body fat than "overweight."
Explanation:
Answer: it is like being over weight
Explanation:
Being overweight or obese are both terms for having more body fat than what is considered healthy. Both are used to identify people who are at risk for health problems from having too much body fat. However, the term "obese" generally means a much higher amount of body fat than "overweight.
plz helllpppp! The primary signalling cell of the brain is
soma
neuron
dendrite
synapse
Answer:
Neuron is the primary signalling cell
How realistic was the contagion film
Answer:
The contagion film was really realistic.
Explanation:
You are playing touch football with some friends on a rainy day. During a breakaway
play, your friend slips in the mud and falls flat on his back. You are not sure if he struck his
head, but he seems winded, disoriented, and has trouble keeping his eyes open. What might
be wrong with your friend, and what should you do to treat him?
Answer:
إرتجاج في المخ، ودوه المستشفى
Answer:
Your friend might have a concussion so you should probably take him to the hospital and leave the work to them.
Explanation:
A 50-year-old G3P3 comes to the office due to heavy periods, spotting between menses, fatigue and weakness. Over the past six to eight months, she has noticed a significant increase in the amount of her menstrual bleeding, currently requiring a box of 30 pads for each month. She has noticed an increase in the amount of blood clots and cramping pain during menses. Her previous history is significant for hypertension for 10 years, controlled with hydrochlorothiazide and a postpartum bilateral tubal ligation 20 years ago. She has no history of abnormal Pap smears and no sexually transmitted infections. Blood pressure is 138/84; pulse 82; respirations 20; weight 220 pounds; height 68 inches. On pelvic exam, uterus is approximately 10-week size. She is nontender on bimanual exam and no adnexal masses are appreciated. A Pap smear one month ago was normal, and her hematocrit is 29 and she is asymptomatic. What is the next best step in the management of this patient?A. HysterectomyB. Endometrial biopsyC. ErythropoietinD. Blood transfusionE. Endometrial ablation
Answer: Endometrial biopsy
Explanation:
The next best step in the management of this patient is endometrial biopsy. Endometrial biopsy is when a small piece of tissue is removed from the endometrium of the patient.
The removed tissue is then examined by the medical practitioner in order to determine any abnormalities in the cell and thereby form a diagnosis. This will be vital to get the necessary information that'll be used in taking care of the patient.
What kind of countertops do most commercial kitchens have that tend to make general sanitation easier?
plastic
marble
stainless steel
wood
(Culinary arts please help ASAP)
Which STD's are caused by a virus and have no cure?
1. HPV (Human Papilloma Virus)
2. Syphilis
3. Genital Herpes
4. Gonorrhea
5. Hepatitis B
(select all that apply)
Answer:
1 and 5?
Explanation:
When the ventricular myocardium receives an electrical impulse, it stimulates a
contraction that:
only pulls in deoxygenated blood from the body.
O pushes both types of blood to both the lungs and body.
only pushes deoxygenated blood to the lungs.
only pulls in oxygenated blood from the lungs.
Answer:
pushes both types of blood to both the lungs and body.
Explanation:
These fibers transmit the electrical impulse to the myocardium (cardiac muscle). The myofibers in the ventricular myocardium contract at the same time because the impulses are transmitted rapidly. When the ventricles contract, the blood from both ventricles is forced out through the pulmonic and aortic valves into the pulmonary and systemic circulation.
The electrical shock causes the heart's ventricles to contract and pump blood as it moves along the conduction channels, hence option B is correct.
What is ventricular myocardium?Before the two lower chambers of the heart may contract, the two upper chambers of the heart (atria) are activated first (ventricles).
Cardiomyocytes and fibroblasts make up the majority of the cells in the myocardium. Along with the extracellular matrix (ECM), blood arteries, lymphatic vessels, and nerve terminals, fibroblasts are dispersed throughout cardiomyocytes.
A thin layer of connective tissue connects the myocardium to the endocardium, the deepest layer of the heart wall.
Therefore, the heart valves are protected by the endocardium, which also borders the blood circulation chambers, hence option B is correct.
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Which examples are staple foods? Choose all answers that are correct.
Answer:
Examples of staple food are rice, wheat, maize, millet, and sorghum, starchy tubers, potatoes, cassava, sweet potatoes, yams, or taro, meat, fish, eggs, milk, and cheese.
Explanation:
choose any
Your symptoms are nausea, dizziness, vomiting, sweating, and increased salivation. Do an internet search to find out what may be the problem. In your answer you will diagnose the problem listing your two sources that agreed on the diagnosis and who runs the website.
Answer: Vertigo
Explanation:
Vertigo is caused by the fact that inner ear is not able to maintain the balance. It occurs due to accumulation of calcium in the inner ear canals. The nausea, dizziness, sweating, vomiting, and increased salivation are the symptoms of vertigo. It can also be caused by the problems in certain parts of the brain.
A chain in the position of the body and small head movements can also make it worse.
01:48:03
How can regular participation in physical activity improve an individual's overall health?
A Regular participation in physical activity reduces the risk of developing various diseases.
B. Regular participation in physical activity allows an individual to function on less sleep
C. Regular participation in physical activity reduces the need for a balanced diet
D
Regular participation in physical activity prevents an individual from developing certain
diseases
Please select the best answer from the choices provided.
Answer:
b
Regular participation in physical activity allows an individual to function on less sleep
Explanation: