The higher risk for breast cancer in obese women after menopause is thought to result mainly from chronic exposure of

Answers

Answer 1

Answer;

Estrogen


The higher risk for breast cancer in obese women after menopause is thought to result mainly from chronic exposure of Estrogen.


Explanation;

Being overweight is associated with increased risk of breast cancer, especially for women after menopause.

Fat tissue is the body's main source of estrogen after menopause, when the ovaries stop producing the hormone.


Related Questions

According to the theory of global warming, which statement is the MOST LIKELY reason for the current climate change?

Answers

The most likely reason for climate change is the accelerated release of greenhouse gases caused by the modern age.
The correct answer is C)The atmosphere is reradiating more heat to Earth. 

The two-point discrimination test is used to determine ________.

Answers

The two point discrimination test is used to determine sensitivity to touch. This test is performed to evaluate the ability of an individual to identify two close points on a small area of skin and how well the individual can discriminate the points. The test can be done by using calipers.






Final answer:

The two-point discrimination test is used to assess the sensitivity to fine touch and the density of sensory endings in the skin, particularly at the fingertips. The test involves touching the skin in two locations simultaneously and asking the patient to identify the number of stimuli. This can determine the presence of a dorsal column pathway deficit.

Explanation:

The two-point discrimination test is used to determine the sensitivity to fine touch and highlight the density of sensory endings, essentially receptive fields in the skin. This is particularly relevant to the fingertips where this sensitivity is highest. The test is performed by simultaneously touching the skin in two locations using a specialized instrument like forceps or calipers to measure the precise distance between the points. The patient, with their eyes closed, is asked to identify whether one or two stimuli are present. Failure to recognize two points can be an indication of a dorsal column pathway deficit.

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What is the difference between food chains and food webs?

Answers

A food web is multiple food chains that connect to each other while a food chain is just one path

Answer: A food chain is a linear link in a food web, and a food web shows how different paths are connected.

Explanation:

A food chain is a linear link in a food web which starts from a producer organism and ends at predator species and decomposer species. A food chain follows only one path, so they begin with one plant and end with one animal, and shows how an organism gets nutrients and energy and how are those passed to another organism. A simple food chain could start with grass, which is eaten by rabbits, which is eaten by a snake, which is decomposed by earthworms.

A food web shows how different paths are connected. It indicates how a consumer animal may feed on several producing animals or plants. At the same time, several decomposers can act on the same organism. An example of a food web is that there ar many decomposers (microbes, earthworms, fungi) to decompose the same animal.

Thereby, a food web consists of many food chains.

Hello there!


What is the role of the Mitochondria? Thanks!

Answers

Hello there!

What is the role of the Mitochondria?


Answer:

The mitochondria is the powerhouse of the cell. It produces the cell's energy and regulates the cellular metabolism. Mitochondrion (the plural of Mitochondria) are only found in eukaryotic cells.


I hope I helped!

Let me know if you need anything else!

~ Zoe
Hello garydesir1!

Mitochondria is part of most Eukaryotic cells, (however are not part of some).

The main job of Mitochondria is to perform cellular respiration. Cellular respiration is when it takes nutrients from the cells, breaks them down, and turns them into energy.

Hope this helps you!

~DL

Polymerase chain reaction (pcr) is an essential technique for the study of dna. pcr uses a dna polymerase enzyme from thermophilus aquaticus to amplify dna extracted from any sample. in order for the reaction to work, researchers must transfer microliters of sample to the reaction vessel for pcr. if a researcher has a dna sample with a concentration of 0.28 micrograms per microliter, how many microliters of dna must be transfered to conduct a 50 microliter reaction if the final concentration should be 2.2 nanograms per microliter?

Answers

Can it be a whole number or a fraction

A main symptom in lewy body disease is loss of _____.

Answers

The answer is inhibition. This is due to dementia from total or partial loss of the mental capacity hence causing the patient to forget things easily/not form any memory. Inhibition may cause one to embarrass themselves and others in social occasions. This results to strained social relationships as a result. In Lewis disease, abnormal Lewis bodies form in regions of the brain. Other symptoms of the disease include loss of memory and confusion.






In what way do the respiratory and circulatory systems depend on each other

Answers

The circulatory system consists of an entire network of blood cells that is being pumped in the entire body throughout and the respiratory system has the main function to exhale carbon dioxide and inhale oxygen for providing energy.

Both circulatory and respiratory systems work together for transportation of oxygen to all the organs and muscles of the body. The heart pumps the oxygen rich blood from lungs and excretes or disposes the waste in the blood to the lungs to breathe and exhale out of the body.

Answer:

Whatever the other guy said

Explanation:

There is much discussion in the media about protecting biodiversity. but does biodiversity really matter

Answers

Without these organisms, ecosystems and ecological processes, human societies could not exist. They supply us with oxygen and clean water. They cycle carbon and fix nutrients. They enable plants to grow and therefore to feed us, keep pest species and diseases in check and help protect against flooding and regulate the climate.

to which property are luster and streak most closely related

Answers

Luster and Streak are most closely related to color.

Answer:

COLOR of a mineral/rock

Explanation:

Luster is defined as the property of a mineral that describes how light is reflected from the mineral's surface (including rocks as well as crystals). For example, pyrite shows metallic type of luster.

Streak is the color that is produced when a mineral is rubbed on a streak plate. These are finely powdered form. For example, hematite appears to be in different colors such as blackish, brownish or reddish, but all of them produces a reddish colored streak.

These two properties of minerals are directly related to the color of a mineral. Color is one of the primary property of identifying a mineral or rock.

3) Farmer Brown grows corn for a living. One day, Farmer Green suggests to Farmer Brown that he should clone his best corn plant in order to produce more ears of corn per plant. Farmer Brown is not sure about Farmer Green's idea. Why might Farmer Brown be hesitant to clone his corn? A) Cloning the corn plants is difficult and expensive to accomplish. B) The cloned corn would not have the same taste as the original plants. C) Cloning eliminates the ability to sexually reproduce and provide genetic variability. D) Cloned plants would have increased genetic variability as well as a shortened life expectancy.

Answers

The answer is C) Cloning eliminates the ability to sexually reproduce and provide genetic variability.
In the future, there is no variability in the genes in the clones given that they are the exact copies of the "parent" produce. All should be identical without differences and variations. Although Farmer Brown doesn't want this to happen that's is what he is reluctant to listen to Farmer Green's advice. 
Farmer Brown is not sure about Farmer Green's idea.The reason to why might Farmer Brown be hesitant to clone his corn is that  Cloning eliminates the ability to sexually reproduce and provide genetic variability. So the answer is letter C. This will result to more variation of species .

Which of these describes one way that the human nervous system maintains a constant body temperature when the external temperature is cold?
A) The nervous system increases perspiration.
B) The nervous system causes digestion to speed up.
C) The nervous system causes blood vessels to constrict.
D) The nervous system triggers the fight-or-flight response.

Answers

The answer is C.) The nervous system causes blood vessels to constrict. 

This is because when they constrict they go further from the skin and discourage heat escaping.

Mark brainliest if I helped you

The best description one way that the human nervous system maintains a constant body temperature when the external temperature is cold. Thus, option C is correct.

What is nervous system?

Nervous system has known as a well organised system in our body as it performs a very important function. The main component of the nervous system has spinal cord and brain. The nerves are arranged in the form of branches from the spinal cord and distributed in all the parts of body.

The location where brain and spinal cord are located is known as dorsal body cavity and these two parts of the body  play a vital role in communication of all parts of the body.

Homeostasis is the tendency of body to maintain the internal environment of the body as when there is too much cold body starts shivering and due to this the body warm up and in same way when there is to much hot body starts sweating to maintain the temperature.

Therefore, The best description one way that the human nervous system maintains a constant body temperature when the external temperature is cold. Thus, option C is correct.

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The frequency of carriers for a rare autosomal recessive genetic condition is 0.04 in a population. assuming this population is in hardy-weinberg equilibrium, what is the allele frequency of the recessive allele?

Answers

E: not enough information provided

Cathodic protection occurs when
a.iron is amalgamated with mercury.
b.iron is made amphoteric.
c.iron is painted to protect it from corrosion.
d.iron is tin-plated for use as a tin can.
e.iron is attached to a more active metal.

Answers

Cathodic protection occurs when iron is attached to a more active metal. Cathodic protection is an anti-corrosion control technique used to control the corrosion of a metal surface by making it the passive site of an electrochemical cell. During this technique, the metal to be protected is connected to a more easily corroded metal  which later corrodes instead of the protected metal.






Describe some of the problems faced by benthic organisms in the ocean

Answers

The benthic organism is an organism that lives on, in or near the seafloor. This also helps the environment and marine life by providing structure, alter water currents, and stabilize shorelines, hard substrate settlement. Some recycle nutrients and improve water quality. An animal of a large group distinguished by the possession of a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fishes. 

Benthic organisms live on the ocean floor, where photosynthesis cannot occur. Since they cannot feed on any plants or living things that require photosynthesis to live, they must feed on either falling nutrients or on each other. Due to the lack of a stable food source, life progresses slowly and survival isn't a promise. 

Which of the following is not true of the xylem?
A. Contains water
B. Comprised of living cells
C. Has thick cells walls
D. Contains dissolved minerals

Which is true of auxins?
A. Affect mitosis
B. Open the stomata
C. Concentration is gravity dependent
D. Control leaf budding

Answers

For the first question, it is B since xylem does not have living cells and instead have dead cells unlike phloem. The other answers are correct since it carries and transports water and dissolved minerals and has thick cell walls with a hallow lumen. 

For the second question, I am not exactly sure but it might be A since it promotes cell division and mitosis is a type of cell division. You might wanna double check that one, though. 

Hope I've helped. :)

               - Dotz 

Binomial nomenclature refers to what two levels of classification?

Answers

The binomial nomenclature system was developed by Carl Linnaeus in the 18th century as a way to provide a standardized, internationally recognized system for naming organisms.

What is Binomial nomenclature?

Carl Linnaeus created the binomial nomenclature system in the 18th century to provide a standardised, internationally recognised system for naming organisms.

The genus name is capitalised in this system, while the species name is in lower case and italicised (or underlined if handwritten).

Binomial nomenclature is a method of naming organisms that employs two levels of classification: genus and species.

The genus is a collection of closely related species with a common ancestor and similar characteristics.

The species is the smallest classification unit and refers to a group of organisms that can interbreed and produce fertile offspring.

Thus, this is Binomial nomenclature.

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What sequence of mrna is made from the gene ttacaggtcc? select one:
a. ggagtggacc
b. uuacaggucc
c. aauguccagg
d. aatgtccagg?

Answers

It's most likely C. Aauguccqgg

The sequence of mRNA is made from the gene ttacaggtcc is aauguccagg.

What are the functions of mRNA?

Messenger RNA is a type of RNA that is necessary for protein production. Once cells finish making a protein, they quickly break down the mRNA.

mRNAs, like DNA, are nucleic acids that contain a specific sequence of nucleotides. These nucleotides are 'read' (translated) by ribosomes to assemble a polymer of amino acids, a protein.

mRNA is RNA that is read by ribosomes to build proteins. While all types of RNA are involved in building proteins, mRNA is the one that actually acts as the messenger.

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Why are antibiotics frequently added to sabouraud agar for isolating fungi from clinical samples?

Answers

Antibiotics such as cycloheximide are frequently added to sabouraud agar for isolating fungi from clinical samples because most fungi grows and multiply slowly at least compared with bacteria that grows rapidly after 24hours. Incorporation of antibiotics into the agar will prevent the growth of bacteria and also other environmental fungal such as Aspergillus spp.






Choose all the answers that apply.
Organisms within the same species _____.

() have similar physical characteristics
() can breed and create fertile offspring
() have similar behaviors
() can breed and create sterile offspring
() have similar morphology

Answers

The answer is 2 and 5

* can breed and create fertile offspring

* have similar morphology

Species is defined as group of organisms that are of the same morphology (may have multiple lines within the group) and has the ability to mate and produce viable, fertile offspring.

Answer:

The answers are options 2 and 5.

Explanation:

The focuses ought to be that it can breed and make fruitful posterity, have comparative morphology .Species is characterized as a gathering of life forms that are of a similar morphology may include various lines inside the gathering and can mate and create reasonable, ripe posterity.

In what organelle does cellular respiration take place name two storage organelles

Answers

- mitochondria
- vacuoles, and vesicles

Vascular plants, like this one, take in water through the roots. How does the water get to the leaves, where photosynthesis happens?

Answers

The water gets to the leaves by going through the xylem tissues of the vascular bundles. We know this because water is very essential when it comes to photosynthesis at whole. Water molecules enter the leaves from the xylem channels- which leads to where photosynthesis happens. That's mainly how.

What is the purpose of mitosis in an organism's life cycle?
A.to produce new, identical body cells
B.to make copies of DNA
C.to produce sex cells such as sperm and egg
D.to release energy for use by the cells

Answers

Answer: A.to produce new, identical body cells 

Mitosis plays an important part in the organism’s life cycle.   In unicellular or single-celled organisms,  mitosis is a type of asexual reproduction, producing identical copies of a single cell. In multicellular organisms, mitosis produces more cells for its growth and repair. Therefore the statement that mitosis produces new, identical body cells is correct.

The upward movement of water in a plant involves all the following processes except?
A. Translocation
B. Cohesion
C. Tension
D. Transpiration

The by-products of hydrolysis include...
A. Protein and fats
B. Stamen and anthers
C. Carbon dioxide and water
D. Pollen and ovules

Answers

The answer is A. Translocation is the movement of food material such as carbohydrates up the plant to parts such as the leaves. This force is not associated with water movement since it is associated with the phloem tissues of the plant.  

 

The answer is A. Hydrolysis process reduces substances such as carbohydrates to glucose or proteins to constituent amino acids. This requires that water is used up in breaking the bond. Hydrolysis can also happen in reverse where bigger molecules are formed from smaller molecules  by expending water from the bond (condensation reaction).






Why is there more than one single locus probe used in actual paternity DNA test?

Answers

There is more than one single locus probe which is used in actual paternity DNA test because we receive half of fathers and half of mothers'. There is more than one probe which is required to test both parents identity.
In other words, locus probes are used to identify multiple intervening repetitive DNA sequence which is located in many chromosomes and results in a generation of 30 and 20 bands, so that we can avoid chances of the same pattern because of multi-band patterns.
Final answer:

Multiple single locus probes are used in actual paternity DNA tests to increase accuracy and reliability. Each probe targets a specific polymorphic segment in the DNA, allowing for the detection of different genetic variations.

Explanation:

In actual paternity DNA tests, multiple single locus probes are used to increase the accuracy and reliability of the test. Each probe targets a specific polymorphic segment in the DNA, allowing for the detection of different genetic variations in the tested individuals.

By using more than one probe, the test can analyze multiple loci or regions of the DNA simultaneously. This increases the chance of obtaining conclusive results and reduces the possibility of false matches or inconclusive outcomes.

For example, if only a single locus probe were used, there is a chance that the tested individuals could share the same genetic variant at that specific locus, leading to misleading results. However, by analyzing multiple loci, the test can provide a more comprehensive and accurate assessment of paternity.

You traced a molecule of urea from the renal artery out of the body. how would the steps of this tracing differ if the urea were recycled

Answers

Blood entering glomerulus carries urea molecule, and the molecules are filtered through Bowman's capsule and then it enters the proximal convoluted tubules. The half of incoming urea is being reabsorbed and it enters the loop of Henle's. Urea is being secreted in thin limbs of a loop from the medulla into the lumen of the tubules increasing urea concentration to hundred percent.
From loop, the urea enters to distal convolated tubules (DCT) being hundred percent. In distal convoluted tubules, thirty percent is reabsorbed to cortex while the remaining seventy percent enters to collecting tubules. Fifty percent is being reabsorbed in the medulla. Fifteen percent is excreted as urine, the five percent is reabsorbed by vasa recta and arteries which are associated with nephron.
The urea recycling traps most of the urea in the medulla and it creates high osmolarity which helps in water reabsorption.

True or False

The female determines the sex of mammals.

Answers

The answer is truee.

How are hormones and prostaglandins similar? how are they different?

Answers

Prostaglandin similarity with hormones is in the effect they achieve by binding to the receptors. Their effects are mediated by paracrine or autocrine mechanisms. Another hormone characteristic is the ability to stimulate adenylate cyclase activity, producing cAMP as the second messenger.  

On the other hand, prostaglandins differ from hormones in that they are not produced at a specific place but in many different places throughout the body. Also, the metabolic degradation of prostaglandins is very rapid.

Final answer:

Hormones and prostaglandins both function as signaling molecules, with hormones acting systemically and prostaglandins acting locally. Prostaglandins are produced from arachidonic acid and have diverse roles and effects depending on their structure and the receptors they bind to in different tissues.

Explanation:

Hormones and prostaglandins are similar in that they both act as signaling molecules in the body; however, they have key differences in their production and modes of action. Hormones are typically produced by specialized glands and travel through the bloodstream to exert effects at distant sites, functioning as part of the endocrine system. In contrast, prostaglandins are derived from fatty acids, specifically arachidonic acid, and they act locally as autocrine or paracrine factors, meaning they affect the cells that produce them or neighboring cells, respectively.

Prostaglandins are produced in many places throughout the body and tend to work in the local environment of their secretion. They play roles in various physiological processes, such as inducing labor, regulating inflammation, affecting blood flow and clotting, and controlling gastric secretions. Their diverse effects are due to structural differences which lead to different biological activities, and their actions are determined by the receptors they bind to in different tissues.

A decreased ph coupled with a decreased plasma concentration of bicarbonate ion indicates that __________ is occurring and the __________ will compensate for this change.

Answers

A decreased pH coupled with a decreased plasma concentration of bicarbonate ion indicates that acidosis is occurring and the respiratory system will compensate for this change.  
Acidosis (metabolic) is a state when increased acidity in the blood occurs and it usually refers when arterial pH falls below 7.35. Metabolic acidosis may result from increased production of metabolic acids (lactic, for example) and is characterized by low pH, low blood HCO3, and normal or low PaCO2. Metabolic acidosis is compensated with an increased exhalation of CO2 to reduce metabolic acid.

The original source of all genetic variation is _____. the original source of all genetic variation is _____. natural selection meiosis mutation recombination

Answers

The original source of all genetic variation is mutation.
Final answer:

The original sources of all genetic variation are mutation and sexual reproduction. Mutation introduces new alleles or variations in a population, resulting in different phenotypes. Sexual reproduction allows for unique combinations of these genetic variants, producing unique individuals.

Explanation:

The original source of all genetic variation is predominantly mutation and sexual reproduction. Mutation, a change in the DNA, is considered as the ultimate source of new alleles or new genetic variation in any population. An individual having a mutated gene might portray a different trait than other individuals in the population. Mutations can have three noteworthy outcomes on an organism's phenotype: a reduced fitness implying lower chances of survival or fewer offspring, a beneficial effect that increases fitness, and neutral mutations that have no effect on the organism's fitness.

Sexual reproduction also introduces genetic diversity, as unique combinations of alleles assemble to generate unique genotypes and thus phenotypes in each of the offspring. Likewise, the process of meiosis, especially during cross-over, contribute to genetic variation.

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What does absorption mean?
A - breakdown of molecules
B - enzyme activity on nutrients
C - network of chemical reactions that occur in the body
D - process of assimilating

Answers

Final answer:

Absorption is the biological process where digested nutrients are taken into the bloodstream, mainly occurring in the small intestine.

Explanation:

Absorption in the context of biology, particularly the digestive system, refers to the process in which substances pass into the bloodstream or lymph system to circulate throughout the body. After food is broken down into small nutrient molecules through mechanical and chemical digestion, the molecules are absorbed by the blood. This process primarily takes place in the small intestine, where nutrients are assimilated into the body to be used for energy, growth, and repair.

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what texas pilitics did barbara jordan began serving in 1973 Jack has a collection of new nickels and quarters. He has a total of 50 coins worth $10.30. How many of each coin does he have? Cytochrome c can be reduced directly by small molecules such as ascorbate (vitamin c). if ascorbate is added to an oxygenated solution containing purified cytochrome c and cytochrome oxidase, what would you predict would occur? a.atp synthesis would occur. A expresses dna that has been derived from another species. 2. dna that has been altered to contain genes, or portions of genes, from different organisms is known as . 3. a , which is found naturally in bacteria, cuts dna at a specific nucleotide sequence. 4. is the use or alteration of organisms, cells, or biological molecules to produce food, drugs, or other goods. 5. is a technique used to quickly synthesize billions of copies of a specific segment of dna. 6. in a process known as , bacteria take up pieces of dna from their surroundings. the acrosome contains enzymes used to The forest was cool and quiet. Sunlight filtered through the trees, dappling the ground at her feet and illuminating a fluffy chattering squirrel that scurried up the enormous evergreen beside her.which literary technique does this passage best illustrate?A.AnticlimaxB.ImageryC.DialogueD.Contrivance Teds assignment during science was to list in his science journal the four properties used to identify a mineral. Ted listed hardness, color, and texture. Ted was having trouble thinking of the last property. What property is Ted missing?A) brightnessB) lusterC) TasteD) weight What event prompted the Persian Gulf War?A) Iraq invaded KUWAITB) Saddam Hussein came to power in IraqC) the 9/11 attacksd) Osama bin Laden founded the terrorist network al-Qaeda ASAP HELP GIVING TO CORRECT PERSON A BRAINLIEST REWARDCellulose is a polymer that makes up plant cell walls. Cellulose is made from a chain of C6H10O5 molecules.Which monomers are most likely used to produce cellulose?a)nucleotides and amino acidsb)glucose moleculesc)nucleotidesd)amino acids What is the purpose of mitosis in an organism's life cycle? A.to produce new, identical body cells B.to make copies of DNA C.to produce sex cells such as sperm and egg D.to release energy for use by the cells what happens when you add 1 to a number 14. Which now-established technology went through the emerging phase in the early 2000s and makes the sharing of ideas much easier? (1 point)virtual realityemail marketingvideo conferencingsocial media15. One of the elements that make the internet such a significant development is its ability to do which of the following? (1 point)connect people all around the worldstream moviesoffer ecommerceshare photos Why is there more than one single locus probe used in actual paternity DNA test? What is the name of the Republican and Democrat running for the Texas seat in the U.S. Senate in 2018? to which property are luster and streak most closely related In the formation of a solution how does the solvent differ from the solute Edwin, a top manager in a bureaucratic organization, often engages in persuading employees while making decisions and focuses more on his team and provides extra coaching to employees. he also maintains a good reputation both inside and outside the organization. based on mcclelland's acquired needs theory, it can be inferred that edwin is an example of ___ How many milliliters of 0.564 m hcl are required to react with 6.03 grams of caco3 ? The theft and/or destruction of information, resources, or funds via computers, computer networks, or the internet: The majority of the japanese-americans who were interned during the war were not actually citizens of the united states.