How are nutrients transferred to the fetus from the maternal blood?

Answers

Answer 1
Nutrients are transferred to the fetus from maternal blood via the placenta. The placenta is a structure that develops during pregnancy that is attached to the uterine wall and to the fetus via another structure known as the umbilical chord. Both wastes and nutrients are transferred via the process of diffusion from blood vessels from the mother and the fetus.

Related Questions

How many different types of contraction is skeletal muscle capable of making?

Answers

There are four different types of skeletal muscle contractions: 1. Concentric (isotonic) contractions: In this contraction type, the muscle actively shortening. The raising of a dumbbell during biceps curl exercise is an example of concentric contractions. 2. Eccentric Contractions: During normal daily activity our muscles are often active while they are lengthening. Walking is an example of eccentric contractions. 3. Isometric Contractions: The muscle is activated at a fixed length. Holding an object would be an example of this type of contractions. 4. Passive Stretch: The muscle is being lengthened during in a passive state. An example of this type is the pull one feels in their hamstrings while touching their toes.
Final answer:

Skeletal muscle can make three types of contractions: isotonic, isometric and eccentric. Isotonic contractions change muscle length but keep force constant. Isometric contractions produce tension without changing muscle length. Eccentric contractions allow the muscle to elongate while under tension.

Explanation:

Skeletal muscle is capable of three different types of contraction: isotonic, isometric, and eccentric. Isotonic contractions can be either concentric or eccentric. During an isotonic contraction, the length of the muscle changes but the tension or force within the muscle remains constant. Isometric contractions result in no change in muscle length even though tension is produced. Lastly, in eccentric contractions, the muscle elongates while under tension, usually as a means to control the re-lengthening of the muscle following an isotonic, muscle-shortening contraction.

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Why is a biosphere important?

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The biosphere is as important as life itself because it is all of life. Without the biosphere, the Earth would be a lifeless planet such as Mars or Venus. ... The growth of the human population on Earth means there is less room for other species.
The biosphere keeps the earth alive and creates thing such as plants and oxygen and anything a human needs.

Why organisms need to release energy in a series of controlled steps?

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In living organisms, energy is needed to carry out the life processes and activities which sustain life. This energy has to be released in a series of controlled steps because that makes it possible to utilize the energy efficiently. If the energy release is not controlled, energy will be continuously released all the time and this will leads to great waste of energy when the energy is abundant and great distress, which can lead to cell death when energy supply is down.

What does the parietal lobe control in your brain?

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It receives information from your senses
Final answer:

The parietal lobe is key for processing somatosensation, which includes touch, pain, and temperature sensations, and proprioception, the sense of body position. It contains a somatosensory map and is involved in speech, reading, and arithmetic.

Explanation:

The parietal lobe, located at the top of the brain, plays a crucial role in integrating sensory information from various parts of the body, particularly involving somatosensation and proprioception. Somatosensation refers to the processing of touch sensations, such as pressure, pain, heat, and cold. Proprioception is our sense of body orientation and position in space. Within the parietal lobe, there exists a somatosensory map, similar to the motor cortex, which corresponds to the distribution and processing of sensory information from the entire body. This lobe is also involved in other important functions like speech and reading.

Neurons in the parietal lobe are involved in speech and reading comprehension. Furthermore, it assists in complex processes like language and arithmetic by interpreting tactile information and helping us understand our corporeal relationship with the external environment.

The most abundant element in the atmosphere can also be found in ?

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The most abundant element in the atmosphere can also be is nitrogen since nitrogen gas accounts for about 78% of the atmospheric gases. Beans and whey protein are, of course, high in protein, and a fundamental component of proteins at the molecular level is a nitrogen-containing group called an amine group.

The most abundant element in the atmosphere can also be found in


Explain why an ecologist must consider both speciation and extinction when analyzing diversity of life on earth.

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An ecologist must consider both of the speciation and extinction of an organism or when analyzing the diversity the life on earth because of the following reasons;

-          It is a role of an ecologist

-          It is part of their job

-          This will tell the existence of the organism

-          The organism’s life span on earth

-          How it was existed and were extinct

Https://www.studthe part of the autonomic nervous system that is responsible for reacting to stressful events and bodily arousal is called the ______________ nervous systemyblue.com/#flashcard/view/6817954

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The part of the autonomic nervous system that is responsible for reacting to stressful events and bodily arousal is called the sympathetic nervous system.

Many farmers use pesticides, which are chemicals that kill insects and help increase the productivity of crops. one such pesticide, ddt is now illegal because it was too effective. it not only killed insects, but also killed predatory animals of insects, like birds, and entered the food chain and affected humans. why do you think that the fda banned the use of ddt?

Answers

They probably banned ddt because ddt is supposed to be for insects but it was killing birds then spread to humans that's dangerous

whats is Phospholipid..?

A.) Structure of cell membranes
B.)insulation
C.)energy..?

Answers

Structure of cell membranes

If a person with type o blood is crossed with a person who is heterozygous for type b blood, what would be the predicted phenotyic ratio of their children?

Answers

wouldnt it be O? im not to sure

If a person with type O blood is crossed with type B blood who is heterozygous producing offspring with 50% of B  type and 50% of type O blood group.

What is a blood group?

Blood grouping is controlled by genes and has four types A, B, AB, and O showing codominance character, and the heterozygous condition of the type B blood group.

Cross of blood group B X O

Gametes for B are i and B

                for O are i and i

producing children 1/2 is type B blood group and 1/2 is type O blood group.

The Cross is attached in the image below.

Therefore due to the heterozygous condition of the type B blood group, it produces two different gamete which is B and i show half of the children is b type and half is O type, blood group.

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Over the course of a few hours, a client receiving lithium carbonate reports being nauseous, then drowsy and "achy." what action should the nurse take when considering the client's next scheduled dose of lithium?

Answers

Final answer:

Assess the client's condition and consult with a healthcare provider if necessary. Monitor the client closely and adjust the dose if needed.

Explanation:

When considering the client's next scheduled dose of lithium, the nurse should take the following action:

Assess the client's condition thoroughly to determine the cause of the reported symptoms.

If the symptoms are severe or persistent, consult with a healthcare provider to determine if the dose of lithium should be adjusted or if an alternative medication should be considered.

If the symptoms are mild and temporary, it may be appropriate to continue with the next scheduled dose of lithium, but monitor the client closely for any worsening of symptoms.

Damage to your somatic nervous system affects voluntary signaling. which muscles would be affected?

Answers

The somatic nervous system is known as the voluntary nervous system, is a part of the peripheral nervous system. It consists of neurons that are associated with skeletal or striated muscle fibers. It affects voluntary signaling for many resion. A large part of the PNS is composed of 12 pairs of cranial nerves and 31 pairs of spinal nerves.

Factors that affect gastric drug absorption include

Answers

Lipid solubility of the drug

Facilitated diffusion utilizes what to move material across the cell membrane?

Answers

Facilitated diffusion is the process of spontaneous passive transport of molecules across a semi permeable membrane through the help of specific trans membrane integral proteins. Thus, facilitated diffusion utilizes specific carrier proteins to move materials across the cell membrane. The carrier protein carry the materials across the biological membrane.

Final answer:

Facilitated diffusion employs transmembrane proteins such as channel and carrier proteins to transport materials across the cell membrane without energy expenditure, utilizing the concentration gradient.

Explanation:

Facilitated diffusion utilizes transmembrane proteins to move material across the cell membrane. This process, also known as facilitated transport, allows materials to diffuse across the plasma membrane with the help of membrane proteins down a concentration gradient (from high to low concentration) without the expenditure of cellular energy. Materials that undergo facilitated diffusion are typically polar molecules and ions that the hydrophobic parts of the cell membrane would repel. The integral proteins involved in this process, which include channel proteins and carrier proteins, function by shielding these materials from the membrane's repulsive force, enabling their passage into the cell.

Submarine fans, reefs, and the deep ocean floor all belong to which type of sedimentary depositional environment?

Answers

Submarine fans, reefs and the deep ocean floor all belong to MARINE type of sedimentary depositional environment.
Sedimentary depositional environment refers to the physical, chemical and biological processes linked with the deposition of sediments. It can be of various types such as Continental depositional environment, Transitional depositional environment and Marine depositional environment.

List and describe the characteristics that define living things from non-living things.

Answers

living= 1. made of cells 2. obtain and use energy 3. grow and develop 4. reproduce 5. respond to stimuli and environment 6. adapt to environment

non-living= anything other such as stone, mountains, a watch

Where in the nephron does most solute reabsorption occur? where in the nephron does most solute reabsorption occur? glomerulus distal convoluted tubule proximal convoluted tubule collecting duct?

Answers

Proximal Convoluted Tubule is the portion of the duct system of the nephron where the solute reabsorption occurs and the tubule is limited to renal cortex. This duct system is slightly a complex structure with proximal convoluted tubule which is segmented into two segments as S1 and S2.
Final answer:

The majority of solute reabsorption in the nephron occurs in the proximal convoluted tubule (PCT). This is where ions, water, and nutrients are reabsorbed from the filtrate into the interstitial fluid. The PCT is the primary site of solute reabsorption in the nephron.

Explanation:

The majority of solute reabsorption in the nephron occurs in the proximal convoluted tubule (PCT).

During tubular reabsorption in the PCT, ions, water, and nutrients are reabsorbed from the filtrate into the interstitial fluid. This reabsorption process helps maintain homeostasis by regulating the balance of solutes and water in the body.

While some additional solutes and wastes are also reabsorbed in the distal convoluted tubule and collecting duct, the PCT is the primary site of solute reabsorption in the nephron.

What is a result of the release of stress hormones

Answers

one result of this would be that it increases the amount of sugars in the human body

Cortisol is a primary stress hormone, and chronic stress for one, is super bad for your health. Your heart rate increases from Adrenaline, blood pressure rises, it increases sugars in the bloodstream. It's very bad. 

The small amount of dissolved oxygen found in warm water is considered a _______ to the success of many fish species.

Answers

The small amount of dissolved oxygen found in warm water is considered a Limiting Factor to the success of many fish species. (I'm not 100% sure)
the small amount of oxegen found in water

________ is the movement allowed at the proximal radioulnar joint in which the forearm is rotated so the palm faces posteriorly.

Answers

The answer is pronation. This happens at proximal radioulnar joint in which movement is allowed. It is the movement seen most of the times in the individual’s foot. It is where the heels move outward in position and the foot is rolled.

A team of scientists examining the effects of drought conditions on fish populations assembled the data shown. The data are collected from automated stations that monitor water levels in a stream. The scientists suspect that one of the automated stations may be malfunctioning. Based on the data shown, which monitoring station is most likely malfunctioning and reporting erroneous data?

Water Depth (cm) at Monitoring Stations June 10th-14th

Station ID June 10 June 11 June 12 June 13
Station A 44.5 45.3 46.4 47.0
Station B 43.5 44.0 45.2 46.5
Station C 42.7 43.4 44.5 45.2
Station D 33.2 31.3 30.7 32.4

Answers

Station D is off by about 10 cm compared to the other stations. It also shows greater variation between readings going down then up like 31cm to 30cm to 32cm.

Water levels at station D show greater variation as compared to other stations. The automated station is producing erroneous data. Therefore the correct answer is option D.

What is meant by water level?

The height of water above or below a specific point is called the water level. The devices used to measure the automated water levels are gages. The level of water above a specified gauge at a given location is called the stage.

Another piece of equipment used to measure the groundwater is the water level meter. It consists of a probe connected to a measuring tape. When the probe touches the water, it emits a signal. The cable is then lifted slightly, the signal stops and the depth of the water can be read through the measuring tape.

Based on the given data, the automated station that is most likely malfunctioning is Station D.

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what is accepted as a fact BIOLOGY 1

Answers

Something that has proof and evidence to prove it.

The Cell is the building block of the body
Living things, life

The nurse admits a 10-year-old who has just eaten lobster and has hives over much of the body. in collecting data regarding this child, which question should the nurse ask the caregiver first?

Answers

The question nurse should ask the caregiver first when the situation is that 10-year-old who has just eaten lobster and has hives over much of the body is; "Has the child ever eaten shellfish before now?"

Largest type of blood vessel that carries blood away from the heart to all parts of the body.

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This is Aorta, the largest artery, which pumps oxygenated blood to tissues.

Second layer of the cell membrane called

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is called the parietal layer

Why are radioisotopes important to biologists?

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because they can helps biologists date fossils and past life OR tracers to follow atoms through metabolism.

An enzyme known as amylase is found in the saliva of humans. This enzyme helps to begin the process of digesting starch molecules in the foods we eat. Which of these BEST describes how enzymes like amylase help in the process of digestion?

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An enzyme known as amylase is found ins the saliva of humans. This enzyme helps to begin the process of digesting starch molecules in the foods we eat. The best description of how enzymes like amylase help in the process of digestion would be that Amylase is a catalyst that speeds up the chemical process of breaking down food molecules.

Which sentence describes energy flow through a natural (not manufactured) system?


A strong wind blows across a Midwestern prairie. The wind forces the blades of a wind turbine to rotate. As the blades spin, the turbine converts mechanical energy to electrical energy. The electricity generated by the wind turbine is used to power nearby homes.

Answers

The correct option is: A STRONG WIND BLOW ACROSS A MIDWESTERN PRAIRIE.
This sentence describes energy flow between two natural elements. The strong wind is natural and the prairie is natural.
 But the other sentences involved artificial systems which had been set up by man. A turbine is a machine that is used to generate energy from wind; it is an artificial system created by man.

Answer:

A STRONG WIND BLOW ACROSS A MIDWESTERN PRAIRIE.

Explanation:

True or false ? the body uses carbohydrates, fats, and protiens as sources of energy

Answers

True. In addition, carbohydrates is the first source, followed by fats then proteins.

An insulin receptor is a protein structure with multiple functional areas. what are these areas also known as and how do they affect the receptors function

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Final answer:

The insulin receptor has functional areas known as domains, including alpha subunits that bind insulin and beta subunits containing tyrosine kinase activity. These domains are crucial for triggering cellular responses that lead to glucose metabolism.

Explanation:

The insulin receptor is a transmembrane receptor that plays a crucial role in the cellular insulin response. It consists of two main areas called alpha subunits and beta subunits. The alpha subunits contain the binding sites for insulin and are located on the cell's outer membrane surface, while the beta subunits penetrate through the cell membrane and have tyrosine kinase activity, which is instrumental in phosphorylation processes.

The binding of insulin to the alpha subunits triggers the tyrosine kinase activity within the beta subunits. This activity involves catalyzing the addition of phosphate groups to tyrosine residues in the beta subunits and other proteins within the cell. This phosphorylation leads to a cascade of cellular reactions that ultimately promote glucose metabolism, vital for providing energy to the cell. These functional areas, also known as domains, are critical for the proper functioning of the insulin receptor, enabling it to perform its role in glucose uptake and metabolism.

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