If two species physically capable of mating but fertilization is unable to occur, this is an example of what type of reproductive barrier?

Answers

Answer 1
This barrier is known as reproductive isolation and and generally occurs when two species have incompatible genitalia which are unable to function together. It can also occur when the sperm of the male species is unable to be fertilized by the female, regardless of genital compatibility.

Related Questions

You arrive at a residence for a 70-year-old man who was found unresponsive by his neighbor. when you assess the patient, you note that his muscles are stiff and the areas of his body closest to the ground are purple. the neighbor tells you that he last spoke to the patient about 12 hours earlier. you should

Answers

not initiate resuscitation efforts.

The 70-year-old man is already been death for while so it will be impossible to resuscitate him. We know that by the stiffness in his muscles, which represent rigor mortis, and the fact that his body parts closest to the ground are purple, duo to the blood beginning to settle in the parts closest to the ground.


A nursing student is preparing a presentation illustrating the human genome project. which function will the student point out as being the primary focus

Answers

Identification of human genes and functions
Explanation:

The Human Genome Project was founded in 1990 and its primary purpose was to identify and label all human genes and their functions. Information from the HGP may eventually be used in genetic testing, the detection of mutations or variations in children, and gene therapy.

Answer:  

As a nursing student is preparing a presentation on the human genome project the student will point out the functional role of the human genome project in diagnosis and prevention of genetic disease.

She will point out how the human genome project has helped out to discover more than 1800 disease genes how the cause of any genetic disease can be found within days rather than years used to be taken before the completion of the human genome project.

She will also point out how the human genome project helped the evolution of gene therapy by sequencing all the nucleotides and identifying all the genes present in the human body.

Gas giants have rings and satellites. True or False

Answers

True

Hope this Helps!!!
That statement is True
Gas giants refer to the large planets the made up from large composition of gas.
These planets are located significantly further from the sun compared to another planet, which makes them have more debris left over from their formation, which will turn either into rings or moons (satellites) that surround these planets.

Fats, oils, phospholipids, steroids and waxes are all examples of ________ which are macromolecules made up almost entirely of hydrogen and carbon.

Answers

These are examples of lipids
Final answer:

Fats, oils, phospholipids, steroids, and waxes are all types of lipids. Lipids are macromolecules that are primarily composed of hydrogen and carbon atoms, and are recognized for their hydrophobic, or water-repelling, nature. They serve numerous vital functions within a cell.

Explanation:

Fats, oils, phospholipids, steroids and waxes are all examples of lipids, which are macromolecules made up almost entirely of hydrogen and carbon. Lipids are a diverse group of compounds that are united by a common feature. They are hydrophobic, meaning they do not dissolve in water due to their non-polar nature.

Lipids serve many different functions in a cell, including energy storage, acting as structural components of cell membranes, and participating in signaling pathways.

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think back to what you've eaten over the past 24 hours. would you say your diet is composed of mainly carbohydrates , proteins, lipids, or nucleic acids? explain

Answers

yes, they are.

Macromolecules are biomolecules which are needed by the body to function. In a cellular level, these are used by the cell to perform many of its processes such as transport, ATP generation and protein synthesis. There are four macromolecules which are carbohydrates, proteins, lipids and nucleic acids. Carbohydrates are obtained by eating for instance sugars or sugary-related goods. Proteins are gained through meat and lipids, oil and fish. Nucleic acids on the other hand are formed through proteins.

How does the nucleus interact with other organelles?

Answers

Inside the Cells: -Messages from the nucleus are sent into the endoplasmic reticulum where the ribosomes are located. The proteins are transferred to the golgi apparatus where the proteins are modified. Ribosomes work along with most of theorganelles because they make the proteins that they need to perform.
Final answer:

The nucleus, the cell's command center, interacts with other organelles through the nuclear envelope, which has pores allowing material exchange. It houses DNA and directs protein and ribosome synthesis.

Explanation:

The nucleus interacts with other organelles by serving as the command center of the cell, where it stores the genetic instructions. The nucleus is enveloped by a nuclear envelope, which consists of two lipid bilayers with nuclear pores that regulate the entry and exit of materials. These nuclear pores allow proteins, RNA, and other solutes to move between the nucleus and the cytoplasm. The nucleus also directs the synthesis of ribosomes in the nucleolus and proteins in the cytoplasm.

Additional functions of the nucleus include housing the cell's DNA in the form of chromatin and orchestrating cellular activities by directing protein synthesis. Notably, some cells, like muscle cells, can be multinucleated whereas others, such as mammalian red blood cells, do not have a nucleus at all.

Which is an example of feedback inhibition answers?

Answers

For example, the effect of the thyroid on the hypophysis is negative feedback or feedback inhibition.

Hypophysis produces the hormone TSH to stimulate the thyroid gland to produce its hormones (T3 e T4). To not exceed the quantity of T3 e T4, these hormones will inhibit the hypophysis so that it stops or decreases the release of TSH, thus reducing the stimulation of the thyroid.






If Zack is guilty, and the mystery food sample contains protein, which test tube will the mystery food sample resemble?

Answers

This question is incomplete, but based on research, the mystery food sample will resemble the test tube used for testing for protein.
In order to identify proteins in food, Biuret reagent is usually used in the laboratory. When the Biuret reagent is added to a food that has protein, the color of the food will change to violet color or pink and this color change is usually used as an indication that protein is present in the food.

Answer: Gelatin

Explanation:

What type of fiber is most beneficial for lowering blood cholesterol levels and subsequent cvd risk?

Answers

The answer to this question would be: soluble fiber

Fiber is food that contains carbohydrate that cant is digested, thus cant is absorbed, by human intestine. Fiber can help digesting food as it helps the food moves in the intestine and gives bulk to the feces. Fiber can be divided into the soluble and insoluble fiber.
Soluble fiber can decreases serum total cholesterol and decreases the low-density lipoprotein cholesterol. It also can and reduce insulin resistance for a diabetic patient.

Weather balloons are only partially inflated before they're released into the atmosphere. why is that?

Answers

Final answer:

Weather balloons are partially inflated before release to accommodate expansion due to decreasing atmospheric pressure and temperature changes with altitude, preventing them from bursting as they ascend.

Explanation:

Weather balloons are only partially inflated before they're released into the atmosphere because as they ascend, the atmospheric pressure decreases, causing them to expand. Balloons are made of synthetic rubber and filled with helium, a gas that has a lower density than air, allowing the balloons to rise. According to Boyle's Law, the volume of a gas at constant temperature is inversely proportional to the pressure it is subjected to. Therefore, if a weather balloon were fully inflated at ground level, it would burst prematurely as the external pressure drops with altitude since there would be no room for the balloon to expand.

Additionally, the temperature change with altitude can further affect the pressure inside the balloon. Starting out at a higher temperature at ground level, the balloon rises to colder temperatures aloft, which would cause the gas to contract if not for the simultaneous pressure decrease that allows for expansion.

Buoyant force plays a crucial role in the ascent of weather balloons. As established by the figures provided, the hot or helium-filled air inside these balloons is less dense than the surrounding cool air, resulting in a buoyant force that enables their ascent once they are untethered. This is why weather balloons must be only partially inflated at the outset, to accommodate expansion and prevent bursting, ensuring that they can ascend to the desired altitudes for scientific measurement.

How many molecules of carbon dioxide are in the equation 6CO2+6H2O-C6H12O6+6O2

Answers

6, i believe, but you might wanna double check, just in case.

In the given equation, there are six molecules of carbon dioxide are present along with six molecules of water in order to form glucose (sugar).

What is the above equation known as?

The above equation is known as the process of photosynthesis through which all green plants and some photosynthetic algae synthesize their own food with the help of carbon dioxide and water in the presence of sunlight. The overall reaction or equation of photosynthesis is as follows:

[tex]6CO_2+12H_2O[/tex] → [tex]C_6H_1_2O_6+6O_2+6H_2O.[/tex]

With the help of the above reaction, it is clear that carbon dioxide and water are the reactants while glucose (sugar), oxygen, and some amount of water are the products of the photosynthesis reaction.

Therefore, in the given equation, there are six molecules of carbon dioxide are present along with six molecules of water in order to form glucose (sugar).

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The system of glands that secrete hormones directly into the bloodstream is known as the

Answers

This happens using the blood vessels pituitary gland parathyroid glands pineal glands mammary glands ovaries and testes..these together i think are called endocrine glands.

Good luck I hope this helps.

Name at least two other cellular processes that could be fueled by the hydrolysis of atp

Answers

These cellular processes could be the active transport of molecules in the cell membranes, and the generation of ATP from cellular respiration.
ATP is the energy currency of the cell, without its generation the cell would fail and cease to function. Now, ATP is produced through cellular respiration which occurs from the process of glycolysis, formation of acetyl coA, citric acid cycle and lastly, oxidative metabolism.
Final answer:

The hydrolysis of ATP provides energy to cellular processes such as active transport (e.g., the sodium-potassium pump) and glycolysis (the breakdown of glucose). In both processes, energy from ATP hydrolysis is utilized to perform essential reactions or movements, enabling the cell to function effectively.

Explanation:

The hydrolysis of ATP, or Adenosine Triphosphate, is a fundamental process in the cell that releases energy required for cellular functions. Two examples of cellular processes that are powered by ATP hydrolysis are active transport and glycolysis.

Active transport refers to the movement of molecules across a cell’s membrane from an area of low concentration to an area of high concentration. It requires energy because it's moving substances against a concentration gradient. One example of this is the sodium-potassium pump, a type of transmembrane ion pump, that drives sodium out of the cell and potassium into the cell. This pump is powered by energy from ATP hydrolysis.

In the process of glycolysis, a molecule of glucose is broken down within the cell. The first step involves the phosphorylation of glucose, which creates a high-energy but unstable intermediate. This phosphorylation reaction is powered by ATP hydrolysis, leading to a conformational change which propels the process forward.

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Which observation tool allows Shauna’s doctor to monitor her blood circulation in real-time?

Answers

Final answer:

Shauna's doctor can use tools like a blood pressure cuff, automated wrist devices, and imaging techniques like thallium stress tests and echocardiograms to monitor her blood circulation real-time.

Explanation:

Shauna's doctor can monitor her blood circulation in real-time with several potential tools. One common technique is the use of a blood pressure cuff and a stethoscope. This involves wrapping an inflatable cuff around Shauna's arm, injecting air into the cuff to temporarily cut off blood flow, and then allowing the air to gradually escape while listening for Korotkoff sounds. This method effectively measures blood flow and records pressure.

Another tool that's often used is an automated equipment that works on similar principles but with advanced innovation. This small device wraps around the wrist and records the blood pressure while the patient holds their wrist above their heart, giving real-time data.

More advanced techniques involve the use of imaging techniques such as thallium stress tests and echocardiograms which visually analyze heart function and blood circulation in real-time. These tests, used primarily in cardiology, provide comprehensive images of the heart and its functioning.

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How is a mature mrna that lacks introns produced in eukaryotic cells?

Answers

They are produced in the eukaryotic cell even if the mature mrna lacks introns with the help of mrna splicing in which it is a post transcriptional process where mrna edits out the introns in order for transcription and production to proceed.

He bacteria that cause tetanus can be killed only by prolonged heating at temperatures considerably above boiling. this suggests that tetanus bacteria _____.

Answers

This suggests that tetanus bacteria produces endospores. 

With as much detail as possible give another example of an analogy for describing the difference between prokaryotic cells and eukaryotic cells

Answers

The detailed example of analogy for describing the difference between prokaryotic cells and eukaryotic cells are 
Prokaryotic cells are to eukaryotic cells as a Honda is to a Ferrari. Prokaryotic cells is a unicellular organism that are the earliest and most primitive forms of life on earth and Eukaryotic cells is a cell that have a cell nucleus and other organelles enclosed within membranes.

The nurse identifies from a client's prenatal record that she has a documented gynecoid pelvis. upon the client entering the labor and delivery department, which nursing action is best

Answers

The nurse identifies from a client's prenatal record that she has a documented gynecoid pelvis. Upon the client entering the labor and delivery department, the nurse is aware that THIS PELVIS IS BEST SUITED FOR LABOR AND NORMAL DELIVERY. THE NURSE SHOULD PREPARE FOR A NORMAL LABOR WITHOUT TAKING ANY EXTRA CARE.

Gynecoid pelvis is a typical female pelvis shape which is favorable for normal birth of a baby.

Where would you find the highest concentration of protons in a chloroplast?

Answers

in the lumen of the thylakoid

When it becomes necessary to enlist the fight-or-flight response, a hormone that is released during the alarm phase of the general adaptation syndrome is?

Answers

Epinephrine AKA adrenaline. 

What will happen to living systems if bicaarbonate, citrate and phosphate buffers didn't exist?

Answers

Buffers such as bicarbonate buffer, citrate buffer and phosphate buffer are important in living system. pH of blood is near to neutrality (7.4). If the pH of blood increases, these buffers help in maintaining the blood pH. Increase in blood pH leads to certain diseases such as alkalosis. This further leads to muscle spasm and respiratory diseases.

Bicarbonate buffer helps to maintain the blood pH if it falls towards acidic range or increases towards alkalinity. It helps in decreasing acidity and increasing alkalinity by forming carbon dioxide gas. Increase in blood pH towards alkalinity is also maintained by excreting the bicarbonates into the urine. Similar action is also seen in case of phosphate buffer and citrate buffer.

Answer: If these buffers are not present in a living system then the change of pH cannot be altered or put back to normal. These buffers help to maintain the pH of the living system so that cells can work properly.

how could you prove or disprove that a specific solute, such as sucrose or starch, was able to diffuse through a semipermeable membrane?

Answers

The passage of solutes like starch and sucrose through the semi-permeable membrane can be tested by performing osmosis.

Semi-permeable membrane is a kind of barrier that allows the passage of specific substances only through it. It can be natural or synthetic. The membrane of kidney cells acts as a natural semi-permeable membrane. Parchment paper and cellophane are examples of synthetic semi-permeable membrane.

Osmosis is the process of movement of solvent particles from their region of high concentration to lower one through a semi-permeable membrane. Some very small sized solutes can also cross the membrane hence the solute size should be taken care of when performing osmosis. Solutes like sucrose and starch are large sized solutes that cannot cross the membrane.

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A major problem caused by humans is the contamination and depletion of _____ resources.

Answers

Final answer:

Humans cause the contamination and depletion of soil and water resources through unsustainable actions like pollution and overuse. These actions contribute to habitat destruction, loss of biodiversity, and drastic changes to ecosystems and the global environment.

Explanation:

A major problem caused by humans is the contamination and depletion of soil and water resources. While soil and water are theoretically renewable, they can be dramatically affected by human activities. Soil can become depleted of nutrients, leading to poor crop yields, and both soil and water can experience erosion and pollution. The overuse of these resources, particularly freshwater, threatens the already limited supply that people depend on for survival.

Human population growth has led to unsustainable resource use and habitat destruction. Activities such as deforestation, overgrazing, oil and gas extraction, mining, and pollution contribute significantly to environmental degradation. The exploitation of natural resources, when driven by poverty or the search for wealth, leads to loss of habitats and destruction of ecosystems. Over-harvesting of wildlife, including fish like tuna and cod, can lead to the decline of these populations and impact biodiversity.

Technology, especially through the burning of fossil fuels, has compounded these issues by causing global environmental changes such as ozone layer depletion, desertification, topsoil loss, and global climate change. The need for sustainable use of natural resources is crucial to prevent further damage and ensure the longevity of the planet's ecosystems.

Final answer:

A major problem caused by humans is the contamination and depletion of soil and water resources, which are renewable but can be significantly impacted by human actions such as pollution, deforestation, and over-exploitation. This leads to reduced soil fertility, freshwater shortages, and a threat to biodiversity.

Explanation:

A major problem caused by humans is the contamination and depletion of soil and water resources. While these are theoretically renewable, human actions such as careless waste disposal, industrial pollution, and over-exploitation can lead to severe environmental impacts. Soil fertility can diminish because of nutrient depletion or erosion, which can occur due to deforestation, unsustainable farming practices, and urban development.

Furthermore, our freshwater supplies are under threat from overuse and pollution, which affect the vital limited resources people rely on for survival. The unsustainable use of resources is often driven by human population growth, leading to habitat destruction and overharvesting of wild animal populations. Additionally, poverty and exploitative industries contribute to environmental degradation, such as the oil and mining industries, which have caused significant damage in the Amazon Basin.

It is not just regional ecosystems that are at risk; global biodiversity is threatened by overharvesting, such as the fishing industry removing species like tuna, cod, and halibut at commercially unsustainable rates. The extraction of resources is a common theme in the history of economic development, often leading to the depletion of species and habitats.

In an experiment, there are two groups. Which group is not changed in any way? hypothesis experimental variable control Description

Answers

The group that is not changed in an experiment is the control group, or control.

Answer:

Control group

Explanation:

An experiment includes control, dependent variable and independent variable to test the validity of proposed hypothesis. Both dependent and independent variable exhibit changes during experimentation while control group does not undergo any changes. Control group is included so as to rule out possibility of any effect of environmental conditions on the results.

Mercury has an atomic number of 80 and a mass number of 200. how many neutrons are in one atom of mercury? 120 200 40 80

Answers

Mass number minus atomic number
200-80=120

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Land used for agriculture adds fertilizer byproducts to water runoff. These byproducts include sulfates, phosphates, and nitrogen. As agriculture expands south of Lake Okeechobee, Florida, predict the impact on the biodiversity in the Everglades National Park, which is marsh and swamplands.

These compounds will combine into larger molecules as they interact in the nitrogen cycle and become food for fish and other animals, increasing biodiversity.
The water cycle will remove excess fertilizer naturally through evaporation, with no impact on biodiversity.
Nitrogenous compounds will be recycled into carbon compounds to create new organisms and increase biodiversity.
Higher amounts of nitrogenous compounds will increase algal blooms, leading to less available oxygen in the water, and decrease biodiversity.

Answers

trees & water will grow based off sunlight and water. sunlight gives it energy
I'd say
Nitrogenous compounds will be recycled into carbon compounds to create new organisms and increase biodiversity.

Which phrase below correctly describes metaphase?

Answers

Is it Sister chromatids

Why would life be impossible without enzymes?

Answers

all the important functions of our body would simply be too slow for us to survive such as digestion. if we didn't digest quick enough our stomachs would be bloated all the time

Plants contain pigments called ____________ that can be turned into vitamin a in the body if needed.

Answers

Plants contain pigments called carotenoids that can be turned into vitamin A in the body if needed. Hope this helps!

The two principal body cavities are the dorsal cavity and the _______ cavity.

Answers

The two principal body cavities are the dorsal cavity and the ventral cavity.

Answer:

dorsal cavity and the ventral cavity.

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