Why is taking vitamin c ineffective at enhancing iron absorption from standard iron supplements?

Answers

Answer 1
The iron in the supplement is already in the ferrous form.

Related Questions

Starch, which can be obtained from bread, rice, and potatoes, is a

Answers

The starch that is obtained from bread, rice and potatoes is a complex carbohydrate. A complex carbohydrate are being turned to or formed into glucose in which is essential for an individual in order to have energy that is important in our every day activities.

The measure of an organism's ability to compete in the struggle for existence is known as

Answers

Adaptation, survival of the fittest.



Please vote my answer brainliest. thanks!

which function function for prokaryotes is described by binary fission?

Answers

answer is reproduction

Answer:

Binary fission or bipartition is a way of asexual reproduction

Explanation:

Most bacteria depend on binary fission to spread. Conceptually, this process is simple; The cell simply needs to grow twice its size and then divides into two. But, in order to remain viable and competitive, the bacteria have to divide at their own time, in their own place, and they must provide each stem. The cell division of the bacteria is studied in many parts of the world. This research is revealing the genetic mechanisms that direct and regulate bacterial cell division. Understanding the mechanisms of these processes is of great interest because this allows the development of chemical products and new antibiotics aimed at interfering with the cell division of bacteria.

Before binary fission occurs, the cell must copy its genetic material (DNA) and deposit it at the ends of the cell, likewise copying the different types of proteins that the new cell division machinery will include.

Which type of microscope should sherman use to try to see the 3-dimensional shape of a virus in the patient's sample?

Answers

A Scanning Electron Microscope (SEM) should be used by Sherman to try to see the 3-dimensional shape of a virus in the patient's sample.
SEM is a type of electron microscopy that can scan the surface of the object to be viewed with the help of the beam of electrons and can give clear and detailed structure of that object. It produces the image in 3-dimension.

Answer: Scanning electron microscope

Explanation:

Within ecosystems, high quality energy is constantly ____.
a. being recycled
b. becoming low quality energy
c. being destroyed
d. becoming matter
e. being made

Answers

It is becoming low quality energy

As a result, the amount of energy delivered diminishes as we travel up the trophic levels. In the food chain, grass has the most energy and lions have the least. Thus, option B is correct.

What alters in change in quality of energy in an ecosystem?

The result is that the lowest quantity of energy is accessible to carnivores (secondary consumers) that feed on herbivores and detritivores, as well as those that devour other carnivores (tertiary consumers).

To create organic matter from carbon dioxide and water, producers like plants, algae, and cyanobacteria utilize the energy from sunshine.

A trophic pyramid is a basic interactional structure shared by all biological populations.

Therefore, High-quality energy is constantly converting to low-quality energy inside ecosystems.

Learn more about ecosystem here:

https://brainly.com/question/14546167

#SPJ5

Which takes more time to recover, primary succession or secondary succession?

Answers

Answer:  "Primary succession takes "MORE TIME" [to recover (than "secondary succession"] .
_________________________________________________________

To study cells with a light microscope different types of stains are usually available. why is it generally more useful to stain eukaryotic cells than prokaryotic cells?

Answers

Cells are difficult to see in light microscopy,so to help visualize the structure of cell ,dyes are used to impart a particular color to cells. Eukaryotic cells have both acidic and basic components so, Hematoxylin and Eosin staining is the standard method of staining used for an eukaryotic cell. Hematoxylin is a basic dye that binds to negatively charged DNA and RNA and is blue in colour.Eosin is pink in color and it binds to positively charged particles like the mitochondria and other components of cytoplasm.

When you perspire on a hot humid day drinking water will restore?

Answers

Fluids, water, You loose salt water and electrolights when you perspire, when you drink water it doesn't have salt or electrolights it just has water so it can only replace your water

What parts of the environment can control the size of a population?

Answers

nature, animals, pollution, amount of natural resources

The irregular ridge on the midline of the scrotum, formed from fusion of the urethral folds during development is the

Answers

It's called the raphe.

Both molecule a and molecule b are classified as __________.

Answers

Both molecule a and molecule b are classified as lipids. The correct option is B.

What are lipids?

Lipids are fatty substances that have many different jobs to do in your body. They are a component of your cell membranes and aid in regulating what enters and exits your cells.

They aid in producing hormones, absorbing vitamins, and transporting and storing energy. Having too many lipids can be dangerous.

A vital part of the cell membrane are lipids. Typically, the structure consists of a glycerol backbone, two hydrophobic fatty acid tails, and a phosphate group (hydrophilic). Phospholipids are hence amphipathic.

Triacylglycerols, sometimes referred to as triglycerides, phospholipids, and sterols, are the three primary categories of lipids.

Thus, the correct option is B.

For more details regarding lipids, visit:

https://brainly.com/question/3498396

#SPJ2

Your question seems incomplete, the missing options and missing image is:

A. Nucleic acids

B. Lipids

C. Carbohydrates

D. Proteins

Molecule A and B are stereoisomers, specifically enantiomers, which are nonsuperimposable mirror images with identical physical properties but different interactions with polarized light and chiral molecules.

Both molecule A and molecule B are classified as stereoisomers. Stereiosomers are molecules that share the same molecular formula and bonding arrangement but possess a different spatial arrangement of atoms. Specifically, A and B are a type of stereoisomers called enantiomers, which are nonsuperimposable mirror images of each other. A chiral molecule (one that has a non-superposable mirror image, like a left and right hand) will have one enantiomer, and together they form an enantiomeric pair. The physical properties of enantiomers, such as melting point, boiling point, and density, are identical, but they differ in their interaction with polarized light and other chiral molecules, such as proteins. This difference is foundational in biological organic chemistry where the interaction with chiral biological molecules can lead to drastically different biological responses.

How do oil spills affect marine ecosystems?
A) Oil has nutrients that are useful for marine plants.
B) This has no lasting effect, as the oil evaporates in a few days.
C) Marine animals absorb the oil through their skins and store it as fat.
D) Marine organisms die because oil stops oxygen from entering the water.


hint : oil floats on water.

Answers

the answer is D, I hope it helps

Answer:

The answer is D) Marine organisms die because oil stops oxygen from entering the water.

Explanation:

The oil spill results in the death of many marine beings, due to the contaminants of the oil compounds that are tremendously toxic. Due to the oil film, the oxygen content in the water is reduced, which causes the asphyxiation of the fish, since they need oxygen to live, which comes from the water, that by the gills, retains the present oxygen and distributes it through the circulatory system through the body.

a chunk of an asteroid that has broken off in outer space is called a

Answers

A chunk of an asteroid that has broken off in outer space is called a meteoroid.A piece of an asteroid is still an asteroid, until you get down to pretty small. Then it's called a meteoroid.
the sentence could be complete in the following way: "A chunk of an asteroid that has broken off in outer space is called a Meteoroid. This is a small rocky or metallic body travelling in the space. they are smaller because they are fragments of asteroids or comets. they might be sized between grains and one meter-wide.

The cerebral cortex plays a major role in our emotions because it _____.

Answers

The cerebral cortex plays a major role in out emotions because it plays a role in the capability to identify and control emotions. The Cerebral Cortex is composed of tightly packed neurons and is the creased, outermost layer that surrounds the brain. It is also accountable for higher thought progressions including speech and decision making . The cortex is divided into four different lobes, the frontal, parietal,  temporal, and occipital, which are each responsible for giving out different types of sensory data. 

Dr. Jenkins just completed an experiment. The variable that was measured in her experiment is referred to as the _____ variable.

Answers

it is referred to as dependant variable
Final answer:

The variable that is measured in an experiment, which reflects the potential effect of the independent variable, is referred to as the dependent variable.

Explanation:

The variable that was measured in Dr. Jenkins experiment is referred to as the dependent variable. In any experimental study, there are typically two kinds of variables: independent and dependent. The independent variable is the one that is manipulated or controlled by the researcher. In contrast, the dependent variable is what the researcher measures to see the effect of the independent variable. For instance, in a study exploring the effect of study hours on test scores, the amount of studying would be the independent variable (as it is what is being changed or controlled), while the test scores would be the dependent variable (as it is the outcome that is being measured).

Learn more about Dependent Variable here:

https://brainly.com/question/32734526

#SPJ12

Which cell junction (not shown) allows direct passage from one cell's cytoplasm to the next?

Answers

Gap junctions are cell junctions that allow the direct passage of molecules, ions, and electrical signals from one animal cell's cytoplasm to another, through connexon channels formed by connexin proteins.

The cell junction that allows direct passage from one cell's cytoplasm to the next is known as a gap junction. Gap junctions are composed of connexons or hemichannels, which consist of six connexin proteins that pair up with connexons of adjacent cells. This unique connection facilitates the exchange of various molecules, ions, and electrical signals between cells, enabling them to communicate and coordinate their functions effectively. In contrast, plants have a similar structure called plasmodesmata which traverse the cell walls and allow for the movement of substances between the cytoplasm of adjacent plant cells.

What law BEST explains why we would expect 75% of the offspring to have large teeth? A) Law of Dominance B) Law of Segregation C) Law of Filial Generations D) Law of Independent Assortment

Answers

The best answer among the following choices would be the first option Law of Dominance.

Correct answer: A). Law of Dominance

The Mendel's law of dominance states that when a cross is done between the parents that are true for characteristics traits, then under such a situation only one of the trait will be dominant and appear in the next generation, and the other will be hidden. It will appear in the trait that is dominant.

The alleles that are expressed in are called as dominant while the characteristics that do not got express is called a recessive trait.






How does heat transferred through radiation different from conduction and convection /7622668/12287573?utm_source=registration

Answers

Conduction means the flow of heat between two objects that are in thermal contact.There is no actual mass transfer,only the thermal energy is passed from layer to layer.
Convection means transfer of heat between fluids by actual mass transfer. It occurs only in fluids.
Radiation means the emission of thermal energy in the form of electromagnetic waves by an object.

The three different ways of heat transfer include radiation, conduction, and convection of heat energy.

What are the processes of heat transfer?

There are three ways in which heat is transferred into and through the atmosphere including radiation, conduction, and convection.

Radiation is energy which comes from a source and travels through the space at the speed of light. This energy has an electric field and a magnetic field which are associated with it, and has wave-like properties.

Conduction is the process through which heat energy is transmitted through collisions of particles between neighboring atoms or molecules. Conduction occurs more readily in solids and liquids, where the particles are more closer together than in that of gases, where particles are further apart from each other.

Convection is the process of heat transfer through the bulk movement of molecules within fluids such as gases and liquid molecules. The initial heat transfer between the objects and the fluids takes place through conduction, however the bulk heat transfer happens due to the motion of fluid.

Learn more about Heat transfer here:

https://brainly.com/question/13433948

#SPJ5

What major geographic event took place during the Mesozoic Era?

Answers

Cretaceous jurassic triasic

All cells contain the same genetic information. why can't cells other than stem cells differentiate into various tissues?

Answers

As cells develop some genes are turned off permanently 

If the water temperature in a lake rises from 10oC to 25oC, what effect is it likely to have on aquatic animals that have a high demand for dissolved oxygen?

A) They will adapt to the change in temperature and use less dissolved oxygen.

B) They will leave the lake and find another with cooler water.

C) They will find it easier to meet their needs for dissolved oxygen.

D) They will find it harder to meet their needs for dissolved oxygen.

Answers

The aquatic animals in the lake will likely suffer greatly or possibly die from the decrease in temperature because as the temperature plummets, the oxygen molecules will stretch farther apart so there will be less oxygen in the water. 
the answer is d. hope this helps.

Which of the following would mostlikely increase the rate of photosynthesis? 

       A. Decreasing the temperature within the plant's environment   B. Decrease the availability of water to the plant   C. Changing a plant's light source to a lower brightness   D. Exposing a plant to a higher light intensity

Answers

D because plants take food from the sun
I think this one is straight foreword. D would be the answer: more light, more photosynthesis.

Which series of labels correctly identifies the indicated structures of this sketch of a cell under a microscope? If you need the answers it will take a while.

Answers

A: The right answer is Vacuole

Vacuoles are organelles present in plant cells.  It is a large single structure, of variable shape according to the cells, delimited by a lipid membrane called tonoplast.

The vacuoles allow the storage of water, ions, sugars, ... and by magnifying, play an important role in the growth of the plant.


B: The right answer is Mitochondria

Mitochondria are organelles present in eukaryoptic cells. The mitochondrion is composed of a double membrane, the inner membrane being folded into mitochondrial ridges.

Mitochondria are the organelles that produce the energy of the cell. The mitochondria thus have a role of power station for the cell. They are the ones who perform cellular respiration.


C: The right answer is Cell membrane (the inside layer)

All cells (prokaryotic and eukaryotic) are separated from their environment by a palsmic membrane.

The plasma membrane is the line of demarcation between the cell and its environment (= envelope of the cell).

It determines what goes into the cell and what comes out of it. Like all biological membranes, the plasma membrane has a selective permeability, that is to say it is allowed to pass through certain substances more easily than others.

The plasma membrane consists of a double lipid layer in which proteins are inserted.


D: The right answer is Chloroplast

Chloroplasts are important organelles specific to plant cells. Chloroplasts appear green ... They contain chlorophyll, a pigment that captures solar energy.

Choroplasts perform photosynthesis, that is, they absorb sunlight and use it for the manufacture (synthesis) of organic compounds from carbon dioxide and water.


E: The right answer is Lysosome

The lysosome is a small spherical structure (a vesicle) delimited by a lipid membrane located in the cytoplasm of eukaryotic cells. The membrane contains ion channels (proton pumps) that allow the active entry of H + ions, in order to maintain an acid pH (between 3.5 and 5) within the lysosomal vesicle.

Lysosomes are organelles of eukaryotic cells that contain a mixture of digestive enzymes used to degrade macromolecules.

Lysosomes are considered the "stomach" of the cell.


F: The right answer is Endoplasmic reticulum

The endoplasmic reticulum are organelles of eukaryotes that extend throughout the cytoplasm (like a labyrinth). These are organelles that produce proteins and play a vital role in the development of the other membranes of the cell.

The field of genetics that studies the molecular mechanisms by which environments trigger genetic expression is known as:

Answers

try 'epigenetics'
The prefix 'epi' basically means on, against, toward so this is the environment acting towards or upon the expression of genes.
Epigenetics. Quizlet has a wonderful selection of vocabulary if you plan on further studying this too.

Microbial mats differ from biofilms in that they __________.

Answers

The microbial mats include mainly bacteria and archaea. They are multi-layered sheet of microorganisms. Biofilm on the other hand includes many species of bacteria, as well as fungi, algae, protozoa, debris, and corrosion products. 
Microbial mats differ from biofilms in that they  are currently found only in extreme habitats.

how do you make babies

Answers

Male sperm enter woman’s ovaries through sexual intercourse creating an embryo.
well, a boy and a girl love eachother mso much that one magicly apears. tada! hope this helps

Because plants do not have skeletons, what accounts for their rigidity?

Answers

The cell walls of plants are very rigid. In addition, the turgor pressure of the water pressing against those cell walls keeps them firm. As water flows through the membranes of the cell walls, the difference in pressure allows these cells to stay in shape.

Halophiles are a type of and are considered lovers.

Answers

Halophiles are a type of ARCHEAE and are considered SALT lovers.

Answer:

Halophiles are archaea and considered the lovers of saline or salt.

Explanation:

Halophiles are included under the domain archaea and considered as extremophile organism. Some halophiles are included in the bacteria laso but the major halophiles are the archae.

Halophiles are included in archae as they do not contain well defined nucleus, endomembrane system is absent and cell wall is not made of peptidoglyan layer. Halophiles has the ability to tolerate the extreme saline conditions. They can be found in he area that contains salt concentration five or six times greater than ocean.

How has nearly all the food we eat been "genetically modified" in the broadest sense of the term?

Answers

In the broadest sense of the term, we have modified the genes of almost everything. We used selective breeding to breed the most resistant form of crops, the largest sized chickens, and others. In recent years we have even modified them through gene splicing and other methods. Nearly everything we eat, including including "organic" foods have been changed from their original DNA structure, in fact we do not even know anything's original genetic structure because of this. Genetic modification could also include mutations. Some crops have mutated due to pollution, disease, or other effects such as climate change. Without genetic modification our world would differ from what it looks like today.

Who was the first scientist to discover cells with the use of a homemade microscope?

Carolus Linnaeus
Robert Hook
Rudolf Virchow
Theodor Schwann

Answers

Hi There, The answer is Robert Hooke

Answer:

Robert Hooke

Explanation:

The cell was first discovered by Robert Hooke in 1665. He observed a slice of a cork cells under a crude or a primitive microscope. He observed the dead cells of a cork. For the first time, Leeuwenhoek in the year 1674 discovered the living cells in pond water for the first time with an improved microscope.

Other Questions
If researchers measure every member of a population, they have: In his speech about drunk driving, David told a story about three of his friends who died in a drunk driving accident. He went into detail about how they had been partying, how they insisted on driving, and how their lives ended when they crashed into tree in the middle of the night. What kind of supporting material did David use in his speech? What parts of a nucleotide make up the backbone of a nucleic acid? Jadelle and implanon are implantable contraceptives inserted in the fatty tissue of the upper arm and provide birth control for Which two statements best describe the role of lymph in the human body?It transports nutrients in the body.It produces hormones in the body.It synthesizes antigens in the body.It circulates macrophages in the body.It produces keratin in the body. Which form of government did Mongolia become in the late 1980s? Factor a producer must consider when decidinghow many workers to hire Which was true of food-gathering societies in prehistoric times? a. Society was highly industrialized. b. The population tended to be small. c. The concept of private property was important. d. There was a system of mass production. The process by which an organism learns to produce a specific response in order to avoid or obtain an outcome is: What are some possible solutions to the problem in the e-mail To whom was Thomas Paine referring when he wrote of "sunshine patriots and summer soldiers"? Luigi's pizza buys 30 pounds of mozzarella cheese, holds it in inventory for one month, and then uses it to make pizza (which it sells). Which of the qualities listed below are necessary for true appreciation? A. recognition of value B. extreme love C. knowledge D. thoughtful observation/experience Read this sentence:Sally would make a terrible class president. She may be good at debates, but she is a terrible saxophone player!The logical fallacy used in these lines is a _________(Blank A) because _________(Blank B).Blank A:-Hasty Generalization-Red Herring-False Dilemma Blank B:-the mention of her skill as a musician tries to make people choose between musicians and leaders-the mention of her skill as a musician makes a generalization that class presidents cannot play instruments-the mention of her skill as a musician is irrelevant to whether Sally would make a good presidentI'm more worried about the first blank. Thanks, you guys! :) The bronco corporation exchanged land for equipment. the land had a book value of $122,000 and a fair value of $154,000. bronco paid the owner of the equipment $12,000 to complete the exchange which has commercial substance. InABC, GE=27in.What is the length ofBE? What do you suppose the author meant by a threshold of irreversibility? White agents who observed the indian ghost dance often did not understand it. ) Why is the price system a more efficient system for allocating scarce resources than by authoritarian means, such as in command economies? charles sold his 350 shares of stock for $11.25 a share. when his broker issued him the check for his sale of the stock the amount of the check was $3868.59. how much was the rate of commission that his broker charged him for the transaction Steam Workshop Downloader