Jose and Sarah are running in the cross country meet. Their skeletal and muscular systems work to move them through the course. As they run, they breathe faster and harder and their heart rate increases.
This illustrates that body systems
A)work together.
B)work independently.
C)all have the same function.EliminateD)have no connection to one another.
a. At the end of replication, two ____ copies of DNA exist.
b. Both copies consist of one ____ strand plus one ____ strand.
explain three ways how humans cause loss to biodiversity
What occurs if a t cell binds to an antigen and the t cell does not receive a co-stimulatory signal?
How does the nervous system determine the strength of stimulus?
Our bodies do not make starch, but we often eat plant foods which contain starch which we digest into _____________, the building block that is used to make starch.
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Which option describes what the U.S. Green Building Council has created?
(A)government control over all engineering design materials
(B)partnerships with LEED and other government organizations
(C)sustainable materials that can be used for any design process
(D)guidelines to simplify the certification process for sustainable building and construction
Answer:
guidelines to simplify the certification process for sustainable building and construction
Explanation:
Why is isopropyl alcohol a better mobile phase than h2o for permanent markers?
A plants biomass mainly comes mainly from nutrients in the soil that are taken up by the plants roots
Answer: False
The mass of the plant is based on compounds made from carbon. Carbon is not absorbed from the roots, it is absorbed through the leaves in form of carbon dioxide. The process involved in the primary stage is photosynthesis. Roots absorb water and minerals or ions. These are used in reaction of the plant cells. Rest the biomass is made from glucose, which is converted into other compounds by series of reactions taking place in plant cell.
Los Angeles is a city on the west coast of the United States that is very close to the Pacific Ocean. Land temperatures in Los Angeles remain relatively constant because of winds blowing from the ocean to the land at night and from the land to the ocean during the day. These winds are a result of:
A) Conjunction
B) Convection
C) Nondisjunction
D) Subduction
Answer: The correct answer is convection. Winds blow because of temperature variations that cause fluids to change density and rise and fall.
Explanation:
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers.
Complete the following diagram by placing the graphics on their appropriate spots.
Answer:
Correct answer in attached file.
Explanation:
This would be the correct answer because, in order for a daughter to have two x chromosomes with the recessive b trait, she would need to obtain one b from each parent. So, each parent (the circle and the square in the diagram) would have to have the trait.
Both a weight-loss center and a health club would be pleased to learn that health and fitness, along with individualism, mastery and control, and self-improvement are core values common in the _____ of the u.s.
A 60-year-old man is unable to walk more than 100 yards without experiencing severe chest pain in his left leg; the pain is relieved by resting for 5-10. he is told that the arteries of his leg are becoming occluded with fatty material and is advised to have the sympathetic nerves serving that body region severed. explain how such surgery might help to relieve this man's problem
The man is experiencing peripheral artery disease due to atherosclerosis. The suggested surgery, severing the sympathetic nerves, may allow more blood flow in the arteries reducing the pain. Alongside lifestyle changes, surgical treatments like angioplasty, endarterectomy, or coronary bypass might be employed based on the severity of the occlusion.
Explanation:The 60-year-old man you described is likely experiencing a condition called peripheral artery disease, linked to atherosclerosis, where the arteries become blocked by fatty plaque deposits. This causes pain during movement, as the muscles cannot get sufficient blood flow. The suggested surgery involves severing the sympathetic nerves in that region, which could provide relief because these nerves control the contraction and relaxation of the arteries. If relaxed, the arteries may allow more blood flow, reducing pain after walking.
Treatment typically involves lifestyle changes, including weight loss, smoking cessation, regular exercise, and a diet low in sodium and saturated fats. Medications to reduce cholesterol and blood pressure may also be prescribed. If the arteries' occlusion is severe, a surgical solution like angioplasty could be employed, where a catheter is inserted into the vessel at the point of narrowing and inflated to widen the opening. A small mesh tube called a stent may be inserted to keep the vessel patent. In an endarterectomy, plaque is surgically removed from the arteries. Alternatively, in a coronary bypass procedure, a non-vital superficial vessel from elsewhere in the body, or a synthetic vessel, is used to create a bypass around the occluded artery.
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Fertilizer use and crop rotation with legumes both increase the availability of which of the following nutrients in soil
A large water wave called a ______ can be generated by underwater earthquakes.
Describe how draping is completed for a procedure that enters the ocular orbit
For a procedure that enters the ocular orbit, draping is completed by covering the head with a double-thickness half sheet and two towels or appropriate disposable head drapes. Then placed an eye sheet to the operative site using a fenestrated eye sheet that measures 14 inches square, with a center opening of 2 1/2 x 3 inches or by using adhesive backed aperture drape that extends over the body.
How does the structure of a gram negative organism contribute to its virulence?
The lipopolysaccharide constituent acts as a pathogenicity in animals, causing disease. More virulence factors can be found in the periplasmic space between the outer and plasma membranes.
What is virulence?The ability of a pathogen or microorganism to cause harm to a host is referred to as virulence. The degree of damage caused by a microbe to its host is referred to as virulence in most, particularly animal systems.
Toxins are among the most important bacterial virulence factors. Endotoxin or lipopolysaccharide (LPS) is found in the outer membrane of gram-negative bacteria, as well as several other exotoxins and enterotoxins secreted by other bacteria.
Lipopolysaccharides, proteins, and phospholipids are found in Gram-negative bacteria's outer membrane.
In animals, the lipopolysaccharide constituent acts as a pathogen, causing disease. The periplasmic space between the outer and plasma membranes contains more virulence factors.
Thus, this way, the structure of a gram negative organism contribute to its virulence.
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Final answer:
Gram-negative organisms have a complex cell structure, with a thinner layer of peptidoglycan and an outer membrane containing lipopolysaccharide (LPS). The LPS acts as an endotoxin and contributes to the virulence of these bacteria. Other virulence factors help gram-negative organisms evade the immune system and cause infections.
Explanation:
Gram-negative organisms have a more complex cell structure compared to gram-positive organisms. They have a thinner layer of peptidoglycan and an outer membrane that contains lipopolysaccharide (LPS), which acts as an endotoxin. This LPS contributes to the virulence of gram-negative bacteria by causing symptoms such as fever, hemorrhaging, and septic shock. Additionally, gram-negative organisms have other virulence factors like pili, capsules, and stress proteins that help them evade the immune system and cause infections.
The surgeon explains the risks to you: infection occurs in 3% of such operations, the repair fails in 16%, and both infection and failure occur together in 1%. what percent of these operations succeed and are free from infection?
which of the following would be the best way to determine whether a cell belonged with Archaea or bacteria?
Which statement best describes the composition and function of proteins in organisms?
Answer:
The answer is Proteins are molecules formed by amino acids and fulfill an essential function for life since they are highly necessary for the growth of the organism.
Explanation:
Proteins are molecules formed by amino acids that are linked by a type of bonds known as peptide bonds. All proteins are composed of Carbon, Hydrogen, Oxygen, Nitrogen and most of them also contain Sulfur and Phosphorus.
Proteins fulfill an essential function for life since they are highly necessary for the growth of the organism, in addition to allowing cells to maintain their integrity, defend against external agents, repair damage, control and regulate functions, among others.
A genetic study conducted over two generations found that the frequencies of genotypes in the first generation were aa: 0.36, aa: 0.48, aa: 0.16. in the second generation, genotype frequencies remained the same. according to hardy–weinberg equilibrium, what can we assume?
For the genotypic frequency to remain the same over generations, then according to Hardy-Weinburg, the following five assumptions are presumed;
1. That the population is large enough for sampling hence there is no genetic drift
2. Natural selection is not acting on the population
3. No gene flow between the population being studied with another population occurred either through migration etcetera
4. No/negligible mutations occurred
5. Mating between individuals of the population is occurring randomly
What is an environmental purpose of buying hunting licenses?
In the "abcd" rule for the symptoms of melanoma, the letters stand for question 15 options: actual size, bleeding, cancer stage, and dark appearence asymmentry, border irregularity, color, and diameter asymmetry, border uniformity, color, and delayed healing acute pain, bleeding, constant swelling, and diameter
Answer needed ASAP!!! A rock that forms from cooling lava is classified as an _____.
Under what conditions might a person with rh- blood develop rh agglutinins
A person with Rh- blood may develop anti-Rh agglutinins if exposed to Rh+ blood through transfusion or pregnancy with an Rh+ baby. Sensitization and a subsequent exposure can cause hemolytic disease of the newborn, but this condition is preventable with RhoGAM injections.
Explanation:A person with Rh-negative (Rh-) blood may develop anti-Rh agglutinins, or antibodies, under certain conditions. This process is known as sensitization. It occurs when a person with Rh- blood is exposed to Rh-positive (Rh+) blood, which can happen through a blood transfusion with Rh-incompatible blood or during pregnancy when an Rh- woman gives birth to an Rh+ baby. The first exposure to Rh+ blood cells typically does not cause a reaction; however, the immune system starts to generate anti-Rh antibodies. Upon a second exposure to Rh+ blood, such as during a subsequent pregnancy with an Rh+ fetus, these antibodies can cross the placenta, resulting in agglutination and hemolysis of the fetal red blood cells, a condition known as hemolytic disease of the newborn (HDN) or erythroblastosis fetalis. This can be severe and life-threatening to the fetus but can be prevented with the injection of RhoGAM during and after the first pregnancy.
Which of these is an example of food engineering apex?
the answer for apex would be, The development of irrigation
Food engineering is exemplified by the optimization of freezing processes for packaged foods, the creation of modified foods with enhanced nutritional values using biotechnology, and the development of specialized food products like MREs and astronaut meals.
An example of food engineering can be seen in the design and optimization of freezing processes for food products. Engineers need to consider the best type of freezing equipment and operational parameters to ensure that food is frozen quickly and efficiently, preserving its quality and safety. A critical part of this process is to account for the packaging material, which can resist heat transfer and increase freezing time.
Additionally, the creation of modified foods, such as calcium-fortified orange juice or breads enriched with B vitamins, also represents food engineering. These foods have been enhanced using biotechnology to improve nutritional value and health attributes. Another aspect of food engineering is the development of food products aimed at specific needs, such as MREs (Meals Ready-to-Eat) for military personnel or specialized foods for astronauts, which are safe to store, easy to prepare in low-gravity environments, and nutritionally balanced.
​the vitamin that is responsible for regulating the absorption and metabolism of calcium and phosphorus for healthy bones and teeth is vitamin ____. ​e
A human bone marrow cell in the prophase stage of mitosis contains 46 chromosomes. therefore, there are a total of __________ sister chromatids in this cell.
A human bone marrow cell in the prophase stage of mitosis contains 46 chromosomes. Therefore, there are a total of 92 sister chromatids in this cell.
What is bone marrow?Bone marrow is a fluid gel-like structure that is filled in the portions of bones like a femur bone. The gel has many functions, it produces blood cells and marrow stem cells. It is red and yellow colored.
Chromosomes are thread-like structures are present inside the nucleus of the cell. They are the main object that contains traits of an organism. There are 46 chromosomes present in the human body.
Human bone marrow contains 46 chromosomes at the phase of mitosis, In the sense of 2 chromosomes per chromatid, there will be 92 chromosomes present.
Thus, there are a total of 92 sister chromatids in this cell.
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Which property of connective tissue is fundamental to its function of binding tissues and organs? cells that contain actin and myosin mostly made of protein fibers regenerative properties tightly packed cells
Ans.
Connective tissue is defined as tissue that connects body organs and tissue and provides them support.These tissues are mainly made up of three types of components, cells, ground substance or matrix, and protein fibers (collagenous and elastin fibers).
The property that makes it able to function in binding of tissues and body organs is presence of collagen protein fibers.These fibers are made up of thin collagen filaments that provides support for the tissue and the organs, to which it connects.
Thus, the correct answer is option option). 'mostly made up of protein fibers.'
Imports of lumber into the United States were down 50% in 2008.
True or false
The given statement is True.
Import of lumber in the united states decreased by 50% by the year 2008 because of globalization.
Consumption of industrial and appearance lumber increased during the 1990s and in 2000 consumption of lumber decreased.
In the year 2008 recession was associated with declines in all the segments of domestic consumption as U.S home construction declined.