What factors are examined by the field of demography? check all that apply. birth and death rates in a population population size predator-prey interactions distribution of ages in a population?

Answers

Answer 1
Birth and death rates are studied, population size is calculated, and the age distribution is also studied. Demography deals with the overall study of how we, as humans, are spread out in an area, a country, or the world. It also concerns vital statistics such as birth and death rates of a population.
Answer 2

Answer:

age, ethnic groups, income level and religious practices

Explanation:


Related Questions

The type of joint that allows flexion, lateral flexion, and rotation of the vertebral column is a ____________.

Answers

The type of joint that allows flexion, lateral flexion, and rotation of the vertebral column is a synovial joint. Synovial joints refer to a joint wherein there is a space connecting the two bones called synovial cavity. Synovial joints does not only perform angular movements mentioned above but also do angular, gliding and do special movements.

What does the plasma membrane of a phagocyte attach to on a microorganism? what does the plasma membrane of a phagocyte attach to on a microorganism? pseudopods glycoproteins lysosomes phagosomes?

Answers

The plasma membrane of a phagocyte attach to on a microorganism is called the glycoproteins. The glycoproteins’ functions are to identify, adhere to and communicate with the cell, among other functions. This only happens when these glycoproteins are already located in the cell membrane. Sugar molecules are attached to these glycoproteins which are actually proteins. Gathered into short chains which are called the oligosaccharides, these sugar molecules are all found in this area. The glycoproteins are used by the cells which are embedded in the plasma membrane to get the oligosaccharides on the outside of the cell. These glycoproteins normally are attached to the polypeptide side-chains. 

A bursting forth of blood from the stomach is known as

Answers

The answer is gastrorrhagia

A bursting forth of blood from the stomach is commonly related to a severe peptic ulcer that has caused gastrointestinal bleeding, often leading to hematemesis, which is the vomiting of blood.

A bursting forth of blood from the stomach is often related to a condition known as a peptic ulcer. This ulcer is a sore in the lining of the stomach, which can sometimes become severe enough to expose blood vessels and lead to bleeding, also known as gastrointestinal bleeding. Factors contributing to ulcer formation include the destruction of the gastric epithelium, leading to acid reaching the stomach wall. Furthermore, ulcers can be formed due to a variety of other reasons such as Helicobacter pylori infection, chronic use of nonsteroidal anti-inflammatory drugs (NSAIDs), or stress.

Emesis, or vomiting, can occur as a body's response to this condition, expelling blood along with stomach contents. Alarmingly, a severe ulcer can expose the wall of stomach vessels causing bleeding that can pose a threat to one's health. This loss of blood can result in what is known as a hematemesis, which is vomiting of blood that may appear as bright red or have a coffee-ground appearance due to partial digestion by acidic digestive juices.

Acute symptoms leading to these severe complications can be a burning sensation or pain in the upper abdomen, often worsening at night and improving with eating, as well as gastroesophageal reflux disease (GERD) which involves heartburn.

Why does an action potential only move in one direction?

Answers

I think this help Many ships can move in any direction including backwards

Action potentials move in one direction due to the refractory period, which inactivates sodium channels in the previous axon segment, preventing backward propagation. This ensures the signal moves from the cell body to the presynaptic terminal continuously. The all-or-nothing nature of action potentials also supports this unidirectional movement.

Action potentials only move in one direction—from the cell body to the presynaptic terminal—due to the refractory period, which prevents them from moving backward down the axon. This period occurs because after an action potential passes through a segment of the axon, the voltage-gated sodium channels in that segment become inactivated and cannot reopen immediately. As the action potential moves from one Node of Ranvier to the next, the downstream segments are depolarized while the upstream segments remain in a refractory state, ensuring that the action potential can only move forward toward axon segments with closed sodium channels ready for rising phase depolarization.This mechanism is supported by the all-or-nothing nature of action potentials, where each depolarization opens the next set of sodium channels, propagating the signal unidirectionally and with full strength down the axon.

Which of these is a compound?

Question options:

carbon


carbon dioxide


air


oxygen

Answers

 the answer is carbon dioxide

Answer:

carbon dioxide

In many plants, stomata are found only on the lower surface of the leaf. The most likely explanation for this fat is that

Answers

In many plants, stomata are found only on the lower surface of the leaf. The most likely explanation for this fact is that water loss would be less on the shaded lower surface than in direct sun.

Part e what materials does dna polymerase require in order to synthesize a complete strand of dna? select all that apply.

Answers

In order to synthesize a complete strand of DNA, the following materials would be required by the DNA polymerase:

1. A single-stranded DNA template

2. Deoxyribonucleoside triphosphates

3. A growing nucleotide strand

4. A group of enzymes

5. A group of proteins

If renewable energy resources can be replaced, why do we need to conserve them?

Answers

Renewable sources are conserved because of the need to save energy. Although, they are renewable, if they are needed for a huge task, they need to be used carefully. Although they are renewable, they are not always available. For example, wind is not always available although it is renewable. When they are conserved, they are saved and it ensures continuos accessibility. Hope that helped. Have a nice day

Mismanagement will deplete resources. Renewable resources remain longer if used wisely and properly. Conserving resources reduces waste.

What is renewable energy resources?

Energy that comes from a source that does not deplete over time is referred to as renewable energy. They are natural, they can regenerate themselves, and their carbon footprint is typically very small or nonexistent. Wind power, solar power, bioenergy (organic matter burned as a fuel), and hydroelectric power, including tidal power, are all examples of renewable energy sources. Tidal power is also a form of hydroelectric power.

If the available resources are managed irresponsibly, then most of them will be depleted. However, the lifespan of renewable resources is significantly extended by careful and effective application of such resources. People are able to reduce their waste and better manage natural resources if they practice conservation.

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__________ fats or lipids form animal body fat that is used for stored energy and insulation.
a.Hydrogenated
b.Reconstituted
c.Saturated
d.Unsaturated

Answers

Answer:

C

Explanation:

Saturated fats are usually solid at room temperature. This is why the fats in the body of animals are solid (the white mass under the skin and surrounding organs like the liver and heart). Saturated fats have such properties because their carbon chains have very few to no double bonds. Therefore their chains have no kinks that interrupt hydrogen bonding between adjacent chains. This helps the chains to stick tightly together increasing the boiling and melting point of these fats/lipids.

Plants, on the other hand, usually have unsaturated fats/lipids.

The answer is C.) Saturated

During a trip to Galapagos island which Observation led Charles Darwin to suspect that organisms change over time

Answers

Galapagos island is the land of unique species of animals and plants. It has 26 types of species of birds and different species of plants that can easily adapt to the environment.

Further Explanation:

The Galapagos Islands is a land of thirteen large islands (archipelago) and a close abouta hundred small islands. Galapagos word has taken from the oldest Spanish word that means tortoise. So that the meaning of word is island of the tortoises. It is a home for unique and different species for example; giant tortoises, sea lions, iguanas and sharks.

On this island, he has observed that there are various types of species of finches. The island has a total 26 types of bird species from which fourteen species are Darwin finches. Darwin observes that Darwin finches are the rapidly evolving vertebrate. The different types of species of finches varied from one land to another. This island also has a unique kind of fauna. They may have evolved from daisies.

Learn More:

1. Learn more about the fibrous skeleton of the heart https://brainly.com/question/7301375

2. Learn more about blood cells bring oxygen and take carbon dioxide away https://brainly.com/question/1213217

3. Learn more about the system prepares food for absorption into the bloodstream https://brainly.com/question/310282

Answer Details:

Grade: High School

Subject: Biology

Chapter: Natural selection

Keywords:

Galapagos, island, archipelago, Spanish, tortoise, giant, iguanas, Darwin, finches, vertebrate, mosses, lichens, faunas, climate.

Explain benefits of using wind Mills versus burning fossil fuels

Answers

Wind mills use energy that can never run out

Which idea did Linnaeus contribute to the theory of evolution?

All living things inherit acquired characteristics.

Humans tend to reproduce at a faster rate than the food supply.

The goal of organisms is to adapt and to strive for perfection.

Organisms can be classified based on similar traits.

Answers

Answer;

Organisms can be classified based on similar traits.

Explanation;Carolus Linnaeus is considered the Father of Taxonomy because he developed a way to name and organize species that we still use today. Taxonomy is the science that focuses on naming, identifying and classifying or grouping organisms.One of his contributions was the development of a hierarchical system of classification of nature.

Linnaeus contributed the idea that D. organisms can be classified based on similar traits.

Linnaeus, a Swedish botanist and taxonomist, made significant contributions to the theory of evolution by introducing the hierarchical system of classification known as taxonomy. He developed a system for naming and organizing living organisms based on their shared characteristics, which laid the foundation for modern biological classification. Linnaeus classified organisms into a hierarchical structure of kingdoms, classes, orders, genera, and species, based on their morphological similarities.

This classification system was instrumental in organizing the diversity of life on Earth and provided a framework for understanding evolutionary relationships among species. By grouping organisms with similar traits into categories, Linnaeus implicitly acknowledged the concept of common ancestry and the idea that organisms share a degree of relatedness due to their evolutionary history. His work paved the way for future researchers, such as Charles Darwin, to build upon the idea of common descent and develop the theory of evolution by natural selection.

Therefore, Linnaeus' contribution to the theory of evolution was his establishment of a systematic method for classifying organisms based on their shared traits, which provided evidence for the interconnectedness of life and the concept of descent with modification.

The correct option is D) Organisms can be classified based on similar traits.

What happens when two species occupy the exact same niche
A. One will cause a primary disturbance
B. They will both increase in population
C. They will help each other
D. Only one will survive

Answers

There will always be one stronger species that take over, which is what evolution has taught us.  

I believe the answer would be D. Only one will survive. 

Have a good day!

Answer: D. Only one will survive

Explanation:

An ecological niche can be define as the functional role an organism plays in an ecosystem so as to survive. Like, the mode of nutrition, type of habitat chosen for survival and season chosen for breeding are the examples of ecological niche.

If two species occupy the same ecological niche, the species which is more superior over the other will receive all the resources. The species which is inferior will decline and extinct according to the competitive exclusion principle. Hence, only one species will survive.

Which of these best defines a species?

A. only the individual organisms that share a common ancestor
B. all the individual organisms that can interbreed and produce fertile offspring
C. all individual organisms that look alike and live in the same general area
D. only the individual organisms that have adaptations for where they live

Answers

B is the answer for this

After a subtotal gastrectomy, a client has a nasogastric (ng) tube to continuous low suction. three hours after the surgery, the client complains of nausea and abdominal pain. the client's abdomen appears distended. the nurse should first:

Answers

The appropriate action that nurse should do first is to take note of the signs that can be a suspect of nasogastric tube blockage and that it is needed to instill about 30 ml of air in which will reestablish the patency. Next step is to also take note that the opioids used can increase nausea and abdominal detention and that it decreases peristalsis. The nurse should tell the client and notify them that there will be no stool for several days and that because of the surgery in which is also expected that there are no bowel sounds to be produced.

Final answer:

When a client post subtotal gastrectomy with an NG tube complains of nausea and abdominal distension, the nurse should first check the patency of the NG tube to ensure it's not blocked or kinked. Clearing the obstruction or adjusting the tube may relieve symptoms. If unsuccessful, the medical team should be notified.

Explanation:

The first step a nurse should take when a client complains of nausea and abdominal pain, with an appearance of a distended abdomen post subtotal gastrectomy with an NG tube set to continuous low suction, is to check the patency of the NG tube. A blocked or kinked NG tube can prevent the proper evacuation of stomach contents, leading to increased pressure in the stomach and intestines, which may cause the symptoms described. Ensuring the NG tube is functioning correctly can relieve the client's discomfort and prevent further complications.

If, upon inspection, the NG tube is confirmed to be blocked or malfunctioning, the nurse should attempt to clear the obstruction or readjust the positioning of the tube. If these efforts are unsuccessful, it's essential to notify the surgical or medical team immediately for further assessment and intervention. Early detection and management of postoperative complications such as tube obstruction can significantly improve patient outcomes.

Atom A has an atomic number of 19 and mass number of 40. Atom B has an atomic number of 20 and a mass number of 40. Which of these is an accurate statement?

A) Atom A has more protons than Atom B.
B) Atom A has one less proton and one more neutron than Atom B.
C) Atom A has an extra nucleon compared to Atom B.
D) Atom A has one more proton and one more electron than Atom B.

Answers

You're answer is B.

I know It's late.

The most common chronic diseases involve the heart and are called cardiovascular diseases. true or false

Answers

True, the most common chronic diseases involve the heart.
Yes you are correct.

When a two year old is admitted to a hospital why is it important to encourage the parent to bring a familiar object?

Answers

When a child is taken to the hospital they are out of their regular routine and are some place unfamiliar . They are not familiar with anything so a familiar object may calm their nerves and give them a since of security

If respiratory compromise occurs what action should the nurse take

Answers

If respiratory compromise occurs, the nurse must perform the jaw-thrust technique. This is the safest primary method to opening the airway of a casualty who has a suspected neck injury because in most cases it can be able without extending the neck.

Which of these beakers contains a solution? Explain the answer. In the beaker that has been determined to contain a solution, identify the solute and the solvent.

Answers

the solutes are oil and solvent is the salt because the solvent is what is dissolving the salt

Answer:

Solution may be defined as the mixture of two or more different substances. The two main different components of the solution are the solute and solvent in the mixture.

Solute may be defined as the substance that dissolved in the solvent. So, the salt and oil is the solute as they are dissolved in the solution. Solvent may be defined as the substance in which the solute is dissolved. So, water is a solvent in which the oil and salt is dissolved to make a solution.

The sleep -wake cycle typically follows a 24 hour cycle and is regulated by the _____

Answers

Final answer:

The sleep-wake cycle is regulated by the suprachiasmatic nucleus, which is a region of the brain responsible for controlling circadian rhythms and therefore playing a significant part in determining sleep patterns and other biological activities.

Explanation:

The sleep-wake cycle, which typically follows a 24-hour cycle, is regulated by the suprachiasmatic nucleus (SCN). The SCN is a tiny region of the brain in the hypothalamus, situated directly above the optic chiasm. It is responsible for controlling circadian rhythms, which are the body's internal physiological processes that follow a 24-hour cycle. These rhythms play an important role in determining sleep patterns, feeding patterns, hormone production, cell regeneration, and other biological activities.

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Treatment of irritable bowel syndrome usually includes making dietary changes and _____.

Answers

Learning ways to manage stress effectively

What types of cells do not undergo mitosis

Answers

the skeletal cells do not undergo mitosis since there are no new cells generated
Final answer:

Cells that do not undergo mitosis include mature differentiated cells like neurons and cardiac muscle cells, and reproductive cells or gametes that reproduce via meiosis.

Explanation:

The type of cells that do not undergo mitosis include most mature differentiated cells such as neurons and cardiac muscle cells. These cells are considered to be in the permanent phase or G0 phase, where they are metabolically active but do not divide.

Also, cells that reproduce through a different process known as meiosis do not undergo mitosis. These cells include the reproductive cells or gametes (sperm and egg cells) in both animals and plants.

While most cells in the body do undergo mitosis for growth and repair, these specified cells do not.

In biology, not all cells undergo mitosis. Cells that do not undergo mitosis are called permanent or non-dividing cells. Examples of non-dividing cells include nerve cells, muscle cells, and red blood cells. These cells have specific functions and do not typically reproduce or divide.

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Pubic hair, breasts, facial hair, and deepening of the voice are called _____.

Answers

I believe that would be called puberty, or the going of becoming from young childhood to late childhood

Answer:

Puberty.

Explanation:

It is a process of physical changes in which the child´s body matures into an adult. It is a transitional stage that initiates the capability to be sexually active and be able to reproduce.

I hope this answer helps you.

The nucleic acid _______ copies DNA so ________ can be made.

Answers

The nucleic acid Combinent copies DNA  so Rna can be made

The nucleic acid RNA copies DNA so protein can be made.

NUCLEIC ACIDS:

Nucleic acid is one of the four biomolecules, which functions to store and transmit genetic information in living cells.

The two nucleic acids in nature are RNA and DNA. RNA is the nucleic acid that conveys the information stored by DNA in order for it produce proteins.

Protein synthesis occurs in the ribosome organelle, where RNA is translated. Therefore, nucleic acid RNA copies DNA so protein can be made.

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In which stage of the cell cycle are sister chromatids separated and pulled to the opposite poles of the cell?

Answers

The answer is metaphase

In a typical epithelial cell na,k-atpase is restricted to:

Answers

In a typical epithelial cell na, k-atpase is restricted to the domain of the plasma membrane of the cell. The enzyme is distributed in a polarized manner within this restriction and is a crucial element in transporting substances across epithelia by creating the ionic gradients that drive the net movement of glucose, amino acides, and ions.

In a typical epithelial cell, the Na+/K+-ATPase pump is located on the basolateral membrane where it uses ATP to actively transport sodium out and potassium into the cell. This enzyme is essential for maintaining ionic balance and facilitating various cellular functions including ion reabsorption.

In a typical epithelial cell, the Na+/K+-ATPase is restricted to the basolateral membrane. This enzyme, also known as the sodium-potassium pump, functions to maintain the proper concentrations of sodium (Na+) and potassium (K+) ions within the cell. It achieves this by using ATP to actively transport three sodium ions out of the cell and two potassium ions into the cell against their respective concentration gradients.

The Na+/K+-ATPase helps to establish an electrochemical gradient, which is essential for various cellular processes, such as nerve conduction and muscle contraction. Direct active transport through the Na+/K+-ATPase is crucial for maintaining the ionic balance in the cell, with a higher concentration of K+ inside and Na+ outside the cell. This gradient also has a role in facilitating other cellular functions, including the reabsorption of other ions like chloride (Cl-) through symporters.

The polarization of epithelial cells, with specific organelles, and membrane proteins such as Na+/K+-ATPase on the basolateral side, versus other structures like cilia on the apical surface, underlines the specialized functions that these cells carry out, such as secretion and absorption.

Academic learning occurs most effectively in a cycle of four steps:

Answers

The four steps are Prepare, Absorb, Capture, and Review. By preparing to learn the material, a person can ready themselves for actually moving to the next step. Absorbing the material allows the person to see and begin to understand what is being taught. Capturing the material makes sure it is written down and able to be seen at a later date. Finally, reviewing the material makes sure that it is ingrained in the person and is able to be recalled and synthesized, which allows the person to prepare to learn new material, which continues the cycle.

The process whereby molecules in vesicles are exported out of the cell is called
A) diffusion

B) endocytosis

C) exocytosis

D) osmosis

Answers

The correct answer is option c. Exocytosis.

The exocytosis is a process, by which the cells transport their secretions out of the cells in a membrane bound vesicle. The exocytosis generally transports the water-soluble molecules out of the cell. The products present in the membrane bound vesicle, which is transferred is released outside the body of the cells.  


Answer:

The answer is C Exocytosis

Explanation:

Why would the nurse ensure that a patient's condom catheter is not twisted?

Answers

So it could fit perfectly.
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