The location or organism where disease-causing agents exist and maintain their ability for infection.
Which of the following is not a feature of echinoderms?
body segments is the answer
Briefly describe what happens during the light dependent reactions of photosynthesis
Light energy is converted into chemical energy by light-dependent reactions. The goal of photosynthesis's light-dependent reactions is to collect energy from the sun and break down water molecules to produce ATP and NADPH. These two energy-storing molecules are then put to use in light-independent reactions.
What is photosynthesis ?Photosynthesis is a process that plants and other organisms used to convert light energy into chemical energy that can then be released to fuel the organism's activities via cellular respiration.
The light-dependent reaction is a photochemical reaction that occurs in chloroplast thylakoid membranes and converts light energy into adenosine triphosphate (ATP) and nicotinamide adenine dinucleotide phosphate(NADPH).
The photosynthesis process is divided into two stages: light-dependent reactions and the Calvin cycle. Chlorophyll absorbs energy from sunlight and converts it into chemical energy via the light-dependent reactions that occur at the thylakoid membrane.
Thus, The goal of photosynthesis's light-dependent reactions is to collect energy from the sun and break down water molecules to produce ATP and NADPH.
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Snakes shed their outermost layer of skin regularly. Which characteristic of life is this action an example of?
A)excretion
B)growth
C)homeostasis
D)nutrition
E)reproduction
Answer:
the correct awnser is (A)
Explanation:
It seems to either be homeostasis so the snake may regulate its state of being like how a person will take off their coat when it gets too warm or growth where the snake sheds its skin to prepare for growth. From what I can tell, the answer can't be excretion, reproduction, or nutrition. As the skin, gave no initial nutritional value so that eliminates excretion and nutrition. The snake isn't giving birth to other snakes during this process so that eliminates Reproduction.
an atom has an atomic number of 17, a mass of 37 amu, and a charge of -1. How many protons does this atom have? How many neutrons does this atom have? How many electrons does this atom have?
Answer:
In conclusion, we have:
17 protons
18 electrons
20 neutrons
Explanation:
Hello!
Let's solve this!
The atomic number indicates the number of protons that is equal to the number of electrons.
In this case, the number of protons is equal to 17.
The number of electrons is equal to 17.
To calculate the number of neutrons, we subtract the mass:
37-17 = 20.
Since the mass is equal to the number of neutrons plus that of protons.
In this case, the number of neutrons is 20.
As it has a charge -1, we add one more electron.
In conclusion, we have:
17 protons
18 electrons
20 neutrons
Compulsive exercise would most likely be present in which eating disorder?
The correct answer is Anorexia Nervosa.
Compulsive exercise is a common feature in individuals with Anorexia Nervosa. This behavior is often driven by an intense fear of gaining weight or becoming fat, and it is used as a means to control body shape and weight. People with Anorexia Nervosa may engage in excessive physical activity despite being underweight, injured, or in poor physical health. This compulsive exercise can exacerbate the health risks associated with the disorder, including cardiac complications, osteoporosis, and muscle wasting.
While compulsive exercise can also be present in other eating disorders such as Bulimia Nervosa or Eating Disorder Not Otherwise Specified (EDNOS), it is most characteristic of Anorexia Nervosa due to the relentless pursuit of thinness and the restrictive eating patterns associated with the disorder. It is important to note that not all individuals with Anorexia Nervosa will exhibit compulsive exercise, but it is a common and concerning symptom when present.
After being medicated for anxiety, a client says to a nurse, "i guess you are too busy to stay with me." how should the nurse respond?
What is the deadly protist called naegleria that can cause meningitis?
What is a chain of amino acids called?
A chain of amino acids is known as a polypeptide.
• The fundamental unit of a protein is known as an amino acid. It is a monomer, which joins together to give rise to a protein.
• The amino acids are joined together by a bond known as peptide bonds.
• The joining of amino acids is a dehydration synthesis as in the process a molecule of water is eliminated.
• The two amino acids joined together is known as a dipeptide, and a long chain of amino acids is known as a polypeptide.
Thus, the chain of amino acids is known as a polypeptide.
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Not breastfeeding baby what happens later
Final answer:
Not breastfeeding a baby means missing out on the vital nutrients, immunoglobulins, and other health benefits provided by breast milk. Sudden cessation of breastfeeding can cause physical effects in the mother, like breast engorgement and leakage, due to a disrupted supply-demand relationship. Without resumption, milk production will usually cease within about a week.
Explanation:
When a baby is not breastfed, they do not receive the benefits provided by breast milk. Suckling stimulates the production of prolactin which leads to milk production in the mammary glands. Oxytocin is released as well, which aids in milk let-down. This process ensures that the baby receives a balanced supply of nutrients tailored to its development phase, including colostrum, which is rich in immunoglobulins necessary for the infant's immune system. Additionally, breast milk contains components that help the infant's digestive system expel meconium and clear bilirubin. If a mother stops breastfeeding suddenly, prolactin and oxytocin levels can decrease, leading to breast engorgement and leakage, mirroring the experiences in the initial weeks following birth. The engorgement occurs because the supply-demand relationship has been disrupted. Although a lactating person can produce milk for years, if breastfeeding is not resumed within approximately one week, the remaining milk will be reabsorbed, and in most cases, no more will be produced.
Brekkies is releasing a new type of breakfast cereal that combines different grains and flavors. since brekkies is releasing a new product in the industry, brekkies will
The likely result in the given scenario above is that the Brekkies will likely find or locate information in regards about the breakfast cereal demands from the consumers with the use of databases online in a way that will help them know if their product will be a hit and if it will sell.
A food handler has finished grilling a chicken breast for a sandwich. what should the food handler do before touching the chicken lettuce tomato and bun?
A food handler placing a chicken breast on the grill and then placing tomato and lettuce on a bun is an example of cross-contamination.
Prior to touching the chicken, lettuce, tomato, and bun, the food handler should wash his hands and make sure that he or she is wearing the right equipment at the time of handling the food. This can be a mask, gloves, and goggles if necessary to prevent any contamination of the food.
A food handler should wash his/her hands then wear protective clothing
and gloves before touching the chicken lettuce tomato and bun.
Food handlers are usually trained to handle food in a hygienic way. This
helps to prevent contamination of the food with pathogenic micro-organisms.
The protective clothes and gloves should be worn when handling food and
before touching the chicken lettuce tomato and bun to keep everyone safe
and healthy.
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Traditionally, it is taught that the neuron is the functional unit of the nervous system. what do some neuroscientists suggest is a more accurate functional unit? why?
Sometimes, in response to irritants, mucous cells secrete excess mucus. What symptoms might this produce if it occurred in the (a) digestive tract or (b) respiratory passageway? What is the purpose of the mucus production in this situation. Give an example to help support your answer.
Excess mucus production in the digestive tract can cause nausea and abdominal discomfort, while in the respiratory passageway it may lead to coughing and a runny nose. Mucus serves to protect the body, trapping pathogens and foreign particles. A typical example of this protective mechanism in action is the increased mucus seen during a common cold.
Explanation:When mucous cells secrete excess mucus in response to irritants, it can lead to different symptoms depending on the location within the body. If this occurs in the (a) digestive tract, symptoms might include nausea, vomiting, abdominal pain, and diarrhea as the body attempts to expel the irritant. If it occurs in the (b) respiratory passageway, symptoms can include coughing, sneezing, a runny nose, and difficulty breathing due to the obstruction the excess mucus creates.
The purpose of mucus production in this situation is to protect the body by trapping pathogens and other foreign particles. For instance, in the respiratory tract, the mucociliary escalator sweeps mucus and trapped pathogens upward towards the throat to be swallowed or expectorated. Similarly, in the gastrointestinal tract, mucus serves as a lubricant and also contains antimicrobial agents that help protect the lining from irritation and infection.
An example that supports the protective role of mucus production is the common cold. During a cold, the body produces more mucus in the respiratory tract to trap and remove the cold virus. This results in the typical symptoms of a stuffed-up nose and the need to clear one's throat frequently.
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Which vessels contain deoxygenated blood?
What kind of snake is gray or black with a yellow stripe arpund its neck?
Which of the following statements is true of meiosis?
a. It divides one haploid cell into four diploid cells.
b. It divides one haploid cell into two diploid cells.
c. It divides one diploid cell into two haploid cells.
d. It divides one diploid cell into four haploid cells.
Answer: the answer to this question would be d because mesios are a dilpoild and theris one dilpoild and it will didvide it into a haploid in pairs of fours.
Cells that secrete the organic osteoid of bony matrix are called:
The three main types of pollutants found in agricultural runoff are
During digestion, water is both added and removed. Which area of the digestive system removes water?
Answer:
Large intestine
Explanation:
Large intestine is the part of the digestive system that consists of cecum, the colon and the rectum. The undigested food enter from small intestine into large intestine. Function of large intestine is to absorb water, salts and vitamins from the undigested food. The undigested and unabsorbed substances form faeces and is stored in rectum till defaecation.
Answer:
Large Intestine
Explanation:
Water from the undigested food is removed by the large intestine. All the nutrients have been absorbed from the food before it reaches large intestine.
Large intestine removes water and make stool consistent enough so that it is easily removed.
There are three main parts of large intestine
a) Cecum - cecum has no major role in food digestion. It passes the food to the colon
b) Colon - It has three sub parts
i. the ascending colon - Bacteria in colon digest the remaining food
ii. the transverse colon - It absorbs fluid and salts
iii. the descending colon - hold the waste
c) rectum
Give the term for the cell type that is characterized by a lack of any internal membrane bound organelles.
Answer:
ok
Explanation:
that
Over evolutionary time, photosynthesis has, in effect, introduced challenges to itself by producing an oxygen atmosphere because
An infant has tricuspid atresia. how should the nurse interpret this finding?
To maintain homeostasis what must follow the chemical decomposition of food for energy production?
A. removal of wastes
B. nervous impulses
C. muscle contractions
D. intake of water
List the four (4) major groups for the antidepressant medications and the prototype of each one.what are the major differences between the four (4) classes?
prototypes:Fluoxetine, Sertraline, Paroxitine
3. MAOI -monoamine oxidase inhibitor- This class of drug blocks a enzyme (MAO) responsible for destroing the neurotransmitters that are low in the brain in case of depression. This drug will allow more "happy" neurotransmitters to be in the brain, causing less depression.
After eating, _________ signals the hypothalamus to suppress appetite.
Name the different levels of body organization
In which type of cell cycle(s) does viral dna become integrated into the host cell's dna?
What term is used to describe the healthiest lake?
Answer: Eutrophic lakes
Explanation:
Eutrophic lakes are the lakes which are in high nutrient content. The high nutrient content supports the large diversity of aquatic plants, algae and aquatic animals. The substrate of the lake is soft and muddy. This provides the suitable environment for the survival of the organisms. The organisms are generally tolerant to the low oxygen and warm temperatures.
On the basis of the above description, eutrophic lakes can be a term used to describe the healthiest lake.
a chemist is studying the effects of minerals on plant growth. she knows that phosphorus stimulates plant growth. She decides to test the effects of various phosphorus concentrations on plants every 5 days over a 20 day period. What is the independent variable in this experiment
a. amount of plant growth
b. phosphorus concentration
c. time of experiment
d. types of plants
Answer: Option B
Explanation:
A chemist is performing an experiment in which he is testing the effect of various phosphorus concentration on the growth of plants.
She decides to change the concentration of phosphorus on every 5th day over a total growth period of 20 days.
The growth of plants will change according to change in concentration of phosphorus. So, the concentration of phosphorus is independent variable.
Hence, the correct answer is option B