Which of the following statements concering scientific hypotheses is fake?
They must be testable experimentally.
They are constructed based on observations,
They are not always correct.
They are the same as theories.

1. In the organ system, The circulatory system is responsible for providing gases, nutrients, and hormones around the body.

2. The organ system that helps waste gases such as carbon dioxide leave the body is the respiratory system.

3. The organ system that includes the brain is the nervous system.

4. The kidneys and the urethra are part of the urinary system.

1.The circulatory system is the organ system in charge of delivering nutrients, gases, and hormones throughout the body. It consists of the heart, blood vessels, and blood, which work together to transport oxygen, nutrients, hormones, and waste products throughout the body. The heart pumps oxygenated blood to the tissues, delivering nutrients and oxygen, while the blood vessels act as a network of highways to distribute these substances to cells and organs.

2. The respiratory system is the organ system that assists waste gases such as carbon dioxide in leaving the body. The lungs, airways, and respiratory muscle are all part of it. During respiration, oxygen is taken in and carbon dioxide is removed from the body. The lungs exchange gases by inhaling oxygen-rich air and exhaling carbon dioxide.

3. The nervous system is the organ system that contains the brain, as well as the spinal cord and nerves. The brain is the body's command and control Centre, coordinating and regulating many physical activities and processes.

4. The kidneys and the urethra are part of the urinary system. The urinary system is responsible for filtering waste products, excess water, and toxins from the blood, producing urine, and eliminating it from the body. The kidneys filter the blood, removing waste and excess substances, while the urethra is the tube that carries urine from the bladder to the outside of the body during urination.

These organ systems work together to maintain homeostasis and ensure the proper functioning of the human body.

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Answer:

Which organ system is responsible for transporting nutrients, gases, and hormones through the body?

✔ cardiovascular system

Which organ system helps waste gases such as carbon dioxide leave the body?

✔ respiratory system

Which organ system includes the brain?

✔ nervous system

The kidneys and the urethra are part of which body system?

✔ urinary system

Answer:

The downward shift is a result of the carbon monoxide molecules binding to the heme group and preventing other oxygen molecules from binding to that same location.

Explanation:

Air masses get from one place to another through evaporation

What locations do evaporation and transpiration occur in?

Water that evaporates into the atmosphere from the soil surface, the groundwater table's capillary edge, and land-based bodies of water is referred to as evapotranspiration. Transpiration, or the transfer of water via plants from the soil to the atmosphere, is also a component of evapotranspiration.

Water on the surface of the earth enters the soil through a process called infiltration. The rate at which soil can absorb rain or irrigation is known as infiltration rate in soil science. It is expressed in millimeters per hour or inches per hour. As the soil becomes saturated, the rate slows.

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Answer:

Explanation:

Geological substratum refers to the solid rock or layer of Earth's crust that lies beneath the soil, sediment, or other surface materials.

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Answer:

B.Involves the collision of two nuclei energy source

Explanation:

A characteristic of nuclear fusion is that it involves the collision of two nuclei.

Nuclear fusion is a reaction through which two or more light nuclei collide to form a heavier nucleus.

The process releases energy because the total mass of the resulting single nucleus is less than the mass of the two original nuclei. The leftover mass becomes energy.

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Mycobacterium tuberculosis is a germ that causes tuberculosis (TB), a very contagious and serious illness that mainly impacts the lungs.

The strength of Mycobacterium tuberculosis to make people sick and how bad the sickness is.

There are many things that make M (a type of bacteria) very harmful. Tuberculosis is a disease caused by bacteria that affects the lungs and can spread to other parts of the body.

The cell wall is made up of M. Tuberculosis has a special outer layer made up of special fats, like mycolic acids. These fats help the bacteria avoid the body's defense system and can cause a strong reaction that leads to harm in the tissue.

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Answer: The A, B, and Rh antigens are located on the surface of red blood cells.

Explanation:

Answer:

A

Explanation:

Cold weather makes it hard to find food. They travel to areas where food is available.

A geologic feature with at least three layers that demonstrates the principle of lateral continuity is called a Grand Canyon.

According to the lateral continuity concept, sedimentary rock strata were formerly continuous over wide areas. As a result, any layer discontinuities must be the result of erosion or other geologic processes.

The layers in this sketch are continuous laterally, which means they extend in all directions while holding onto their thickness and makeup. We can presume that the layers go farther in all directions even though we can only see a small section of them in this sketch. This is significant because it enables geologists to link the age and make-up of distinct rock layers.  

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The correct statements that accurately summarize why cold weather events are not considered evidence refuting climate change are A, D, and E.

Firstly, weather refers to short-term conditions while climate refers to long-term conditions. Therefore, a single cold weather event or even a few cannot be used to argue against the long-term trend of climate change. Secondly, climate change does not mean that all places change in the same way at the same time. This means that while some areas may experience extreme heat, others may experience cold temperatures. Lastly, abnormally cold weather conditions can actually be caused by warming at the poles. As the poles warm, the jet stream can weaken and move south, allowing colder air to move into regions that are not typically cold. Therefore, cold weather events are not a refutation of climate change, but rather a potential consequence of it. It is essential to focus on long-term trends in global temperatures and carbon dioxide levels to understand the impacts of climate change accurately.

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Answer: The 5 classifications in the plant kingdom are thallophyta, bryophyta, pteridophyta, gymnosperms, and angiosperms.

Explanation:

The correct combination of vital signs is temperature, respiratory rate, and heart rate.

Vital signs are key measurements that provide important indicators of a person's physiological status and overall health. They help healthcare professionals assess and monitor a patient's condition. The vital signs typically include temperature, respiratory rate, heart rate, and blood pressure. Among the options provided, the correct combination of vital signs is temperature, respiratory rate, and heart rate.

Temperature is a measure of the body's internal heat. It can be measured orally, rectally, or with the help of infrared thermometers. Deviations from the normal range may indicate fever or hypothermia, which can be indicative of underlying health issues.

The respiratory rate refers to the number of breaths a person takes per minute. It provides insight into lung function and overall respiratory health. Abnormal respiratory rates may suggest respiratory distress or underlying pulmonary conditions.

Heart rate, also known as pulse rate, measures the number of times the heart beats per minute. It reflects cardiac activity and can be assessed by feeling the pulse at various points in the body. Deviations from the normal heart rate can indicate cardiovascular problems or other physiological abnormalities.

Weight, muscle mass, and height are not typically considered vital signs. They are important anthropometric measurements used for assessing overall body composition, growth, and nutritional status. While these measurements are relevant in healthcare, they are not classified as vital signs.

In summary, the vital signs include temperature, respiratory rate, and heart rate. Monitoring these parameters allows healthcare professionals to gain valuable insights into a patient's health status, identify potential issues, and make informed decisions regarding treatment and care.

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Answer: anaphase II

Explanation:

In meiosis, during anaphase II sister chromatids separate. Prophase I and metaphase I are the first two stages of meiosis I, respectively.

The centromeres of each chromosome simultaneously separate during the anaphase II stage of meiosis II, and the sister chromatids are drawn apart in the direction of the opposing poles.

A microtubule network referred to as the spindle apparatus is used to transport chromosomes to both poles of a meiotic cell at this stage. Through this technique, two distinct groups of homologous chromosomes are formed.

The homologous chromosomal pair's individual kinetochore-microtubules are joined to each chromosome during anaphase 1. Two kinetochore microtubules from each of the two opposite poles bind to the bivalent chromosome's centromere during anaphase II.

Therefore, In meiosis, during anaphase II sister chromatids separate. Prophase I and metaphase I are the first two stages of meiosis I, respectively.

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Answer:

A

Explanation:

both knew who got the placebo

In the United States 16 percent of the population is Rh negative, meaning that 84 percent of the population is Rh positive.

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This is a problem in the field of ecology.

The problem of quagga mussels in the lake is an ecological issue that requires scientific assessment and management.

It falls under the discipline of ecology, which studies the relationships between organisms and their environment.

Ecologists investigate the impacts of invasive species on the ecosystem and devise strategies to control their spread and minimize their effects.

In this case, scientists will need to examine the size of the quagga mussel population, their distribution, and their ecological interactions with native species.

They will also need to recommend measures to prevent further introduction of quagga mussels and to manage their population growth, such as using chemical treatments or biological controls.

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Answer:

Any metabolic waste product that contains nitrogen. Urea and uric acid are the most common nitrogenous waste products in terrestrial animals; freshwater fish excrete ammonia and marine fish excrete both urea and trimethylamine oxide.

Answer:

The ball and socket joint is the one that can perform all those movements.

Explanation:

Ball and socket joint, also know as spheroid joint are types of joints where the part of the bone that articulates with the other bone has a spheroidal shape or ball shape that fits in the depression of the other bone, which means that they are a synovial enarthrosis joint. It has a wide range of movements because it can move in the transverse, vertical, and sagittal axes. An example of this joint is the shoulder, between the scapula and the humerus.

Answer: Sholder and hip

Explanation:

Answer:

Boreal forest is among the largest terrestrial biomes on earth in which minerals in the soil most rapidly depleted.

Answer:

The stomach produces hydrochloric acid.It kills many harmful microorganisms that might have been swallowed along with the food.The enzymes work best in acidic conditions-at low pH

Hydrochloric acid is an important component of the gastric juice in animal species such as humans. This maintains the pH in the stomach.

Hydrochloric acid is also known as muriatic acid, it is an aqueous solution of the compound hydrogen chloride. Hydrochloric acid is a colorless solution with a distinctive pungent smell. It is mainly classified as a strong acid. However, it is a component of the gastric acid in the digestive systems of most of the animal species, including humans. Hydrochloric acid is an important component of the digestive system.

Hydrochloric acid (HCl) is a part of the gastric juice. It plays an important role in creating the pH required for pepsin activity and for the maintenance of this pH. Parietal cells in the stomach are responsible for the production of HCl acid by secreting hydrogen and chloride ions separately. When pepsinogen and hydrochloric acid exist together in the gastric juice, pepsin is converted into its active form.

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Answer:

Peptide-Bond Formation. The linking of two amino acids is accompanied by the loss of a molecule of water. A series of amino acids joined by peptide bonds form a polypeptide chain, and each amino acid unit in a polypeptide is called a residue.

Explanation:

Answer:Peptide-Formation of Bonds. The interaction of two amino acids is followed by the loss of a water molecule. A polypeptide chain contains a sequence of amino acids joined by peptide bonds, and each amino acid unit in a polypeptide is called a residue.

Explanation:

The correct order of respiration is:

Oxygen is absorbed in the lungs and food is absorbed in the gut, The blood transports oxygen and nutrients to individual cells, Oxygen and food pass through the cell membrane and reach mitochondria, Carbon dioxide and water pass through the cell membrane, The blood transports carbon dioxide to the lungs and water is removed from the body.

Respiration is the process by which living organisms produce energy from food molecules. In humans and other animals, respiration occurs in the cells of the body, particularly in the mitochondria, which are organelles responsible for producing ATP, the primary source of energy for cellular processes.

The process of respiration can be broken down into two main stages:

External respiration: This stage involves the exchange of gases (oxygen and carbon dioxide) between the body and the environment.

Internal respiration: This stage involves the use of oxygen to produce energy through cellular respiration.

In summary, respiration is the process by which living organisms produce energy from food molecules. It involves the exchange of gases between the body and the environment, and the use of oxygen to produce energy through cellular respiration.

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An increase in the concentration of carbon dioxide in the oceans will affect the formation of the skeleton of the sea urchin which is made of calcium carbonate.

The pH of the ocean is affected by the concentration of carbon dioxide in the atmosphere.

The higher the concentration of carbon dioxide in the atmosphere, the higher the concentration of carbon dioxide in the ocean. This is because carbon dioxide is soluble in ocean water. Hence, the ocean serves as a reservoir of carbon dioxide.

Carbon dioxide present in the ocean dissolves in dissolves the ocean water to form carbonic acid. This then raises the acidity of the ocean and the pH of the ocean begins to fall.

This acidifying of the ocean has a direct effect on animals such as sea urchins whose shells are made of calcium carbonate as it reacts with acidic ocean water.

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Answer:

C

Explanation:

A cell carries out all the processes of the body which includes producing energy and storing it, making proteins which are molecules which have roles in metabolism, transportation of other molecules and DNA replication.

Answer: reproduction

Explanation: to be real i only chose that one because you already had that answer filled out lol so don't choose this one as the right one.

Answer:

Vicarious reinforcement real-life examples include: Your child learns to say “please” because he/she saw a sibling say the same and get rewarded for it. The child learns to eat his/her vegetables to get dessert because he/she saw a sibling finish their veggies and was allowed the sweets.

Explanation: