In a graph, the quadrants are marked from the top right corner and goes anti-clockwise
Hence we will have (+,+) in the Quadrant I
(- , +) in quadrant II
(-,-) in quadrant III
and
(+,-) in quadrant IV
Now the given point (-5,5) is a (-,+) and hence it lies in the quadrant II
Consider a closed ecosystem which contains only mosquitoes and frogs. the mosquitoes feed on the blood of the frogs, and the frogs eat the mosquitoes. this ecosystem is impossible because:
Drag the words or phrases on the left to the appropriate blanks on the right to complete the sentences. use only pink labels (reservoirs) for pink targets and blue labels (processes) for blue targets. not all terms will be used.
Maddy, Carole, and Maria are enjoying a day at the beach. They are body surfing and playing on their boards. Imagine that wave A catches up with wave B. Describe the change, if any, in wave amplitude.
As electrons are passed through the electron transport chain associated with photosynthesis, they lose energy. what happens to this energy?
a.it is used to phosphorylate nad+ to nadph, the molecule that accepts electrons from photosystem i.
b.it is lost as heat,
c.it is used to establish and maintain a proton gradient.
d.it excites electrons of the reaction center of photosystem i.
Low-energy electrons destroy oxygen molecules and produce water as they move through the electron transport chain, losing energy as they do so. Thus, option C is correct.
What proton gradient cause in electron transport chain?The electron transport chain in particular utilizes the energy from the electrons on NADH and FADH2 to pump protons (H+) into the intermembrane gap.
As a result, there is a proton gradient between the mitochondria's matrix and intermembrane space.
Hydrogen is pumped out of the matrix space by the energy released. As a result, a gradient is produced that forces hydrogen back through the membrane via ATP synthase.
Therefore, electron transport chain associated with photosynthesis, they lose energy because it is used to establish and maintain a proton gradient.
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Arteries carry oxygenated blood away from the heart and typically have ________________ blood pressure. Veins carry deoxygenated blood to the heart and typically have __________________ blood pressure.
a. low,low
b.high,low
c.low,high
d.high,high
Arteries carry oxygenated blood away from the heart and typically have high blood pressure. Veins carry deoxygenated blood to the heart and typically have low blood pressure. This is the reason behind the 120/80 - 140/90 mmHg blood pressure that is seen during the measurement of the blood pressure. Arteries have blood in high pressure and large quantity as the heart pushes the blood away from it to the various organs. Veins carry the blood away from the organs due to the pull of the heart, this creates a low pressure zone inside the veins.
What are the 6 steps of hypothesis testing? (state the 6 steps)
a.
b.
c.
d.
e. f)?
Give explain and characteristics of Protisia? It's the kingdoms.
What effect would it have on the circulatory system if a person quit smoking?
What is the central dogma of biology identify and describe the molecular processes that accomplisht he flow of genetic information described in the central dogma?
Final answer:
The central dogma of biology outlines the flow of genetic information from DNA to mRNA to protein, primarily through the processes of transcription and translation. Transcription makes an RNA copy of a gene, and translation uses that RNA to build a protein.
Explanation:
Central Dogma of Molecular Biology
The central dogma of molecular biology describes the flow of genetic information in cells from DNA to RNA to protein. The genetic information is first transcribed into messenger RNA (mRNA) during transcription, and then the mRNA is translated into a protein during translation.
Transcription
Transcription is the process by which a segment of DNA is copied into mRNA. This occurs when the cell needs a particular protein, and the gene responsible for that protein is activated. As the DNA is transcribed, nucleotides are matched to synthesize the single-stranded mRNA molecule.
Translation
Translation is the process whereby the sequence of the mRNA is used to dictate the correct order of amino acids that make up the protein. This involves reading the mRNA nucleotides in groups of three, known as codons, with each codon corresponding to one specific amino acid. Thus, a protein's structure is determinate by the nucleotide sequence of the gene.
In a 10 m2 ecosystem, there are 40 possums. What is the population density of possums? 2 per m2 4 per m2 10 per m2 40 per m2
the above answer is incorrect, i chose it. the CORRECT answer is B. hope this helps.
Answer:
Option B, 4 per m2
Explanation:
The population density of any species or human is the number of species or human beings living in a unit area.
Thus population density can be represented mathematically as
Population density [tex]= \\[/tex] Number of species/Human beings in a given region[tex]/\\[/tex] Area of the region ----------------Eq (A)
Given -
Area of the ecosystem [tex]= 10 m^{2} \\[/tex]
Total number of possums [tex]= 40\\[/tex]
Substituting the value in equation A, we get -
[tex]\frac{40}{10m^{2} } \\= 4 m^{2} \\[/tex]
Thus, option B, is correct.
The role of chlorophyll in photosynthesis is to A. Pass electrons to the stroma B. Split water molecules C. Absorb light energy D. All of the above
Which main force can cause a landslide? A. magnetism B. convection C. gravity D. pressure on fault lines
This is a simple sugar that provides energy to organisms
The simple sugar that provides energy to organisms is glucose.
Glucose is the monosaccharide and primary source of energy for living organisms. It is a type of carbohydrate and is often referred to as "blood sugar" because it circulates in the bloodstream and is utilized by cells throughout the body to produce energy.
During cellular respiration, glucose is broken down in the presence of oxygen to release energy in the form of adenosine triphosphate (ATP). ATP is the primary energy currency of the cell, and it fuels various cellular processes and activities, allowing organisms to perform essential functions like growth, movement, and metabolism.
Glucose is obtained through the digestion of carbohydrates in the diet, such as those found in foods like fruits, vegetables, grains, and sugary products. Once absorbed into the bloodstream, glucose is transported to cells where it undergoes cellular respiration to release energy, making it a vital energy source for all living organisms.
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--The given question is incomplete, the complete question is
"This is a simple sugar that provides energy to organisms is -----------."--
(05.01 MC) How do wetlands abiotically help to protect the water quality of a marine ecosystem? They cause areas to flood into larger water bodies. They cause the water to be filled with tannins. They filter sediments and other material from runoff. They prevent water from being stored in their areas.
Answer:
They filter sediments and other material from runoff
Explanation:
Wetlands are places that are mostly ‘wet’ most of the time of the season and are filled with aquatic plants and riparian vegetation. Most of the time this water is still and anoxic. Wetlands are important because they allow the sediments in the still waters to settle, and also the ecosystem takes out the nutrients/dissolved molecules hence purifying the water before it is released into the water bodies such as oceans and lakes.
A biome is a broad category of ecological organization that includes all of the biotic and abiotic components of an entire climate region, such as a desert or a rainforest. Which of the following categories of ecological organization is broader than a biome?
You and a fellow lifeguard are giving ventilations using a bvm. you position the mask over the victims nose and mouth. what should the other lifeguard do next
The other lifeguard should use both hands to form a tight seal around the mask.
Why should the other lifeguard do this?They should then look, listen, and feel for signs of breathing. If they do not see the victim's chest rise or hear any breath sounds, they should start giving rescue breaths.
The rescue breaths should be given at a rate of 10-12 per minute. The lifeguard should use their diaphragm to breathe into the mask, making sure to form a tight seal. They should watch the victim's chest rise and fall to make sure that they are getting air.
If the victim starts breathing on their own, the lifeguard should continue to monitor their breathing. If the victim stops breathing again, the lifeguard should start rescue breaths again.
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Consider conditions for which a fluid with a free stream velocity
The equation of continuity in fluids states that the product of density, velocity, and cross-sectional area remains constant. The constriction or expansion of the cross-sectional area directly affects the velocity of the fluid.
Explanation:The question is referring to the equation of continuity in fluids, which is valid for any incompressible fluid. This equation states that the product of density, velocity, and cross-sectional area remains constant throughout the flow of the fluid.
For example, when water flows from a hose into a narrow spray nozzle, the cross-sectional area decreases, causing the velocity to increase. Conversely, when a river empties into a reservoir, the cross-sectional area increases and the velocity decreases.
Therefore, the constriction or expansion of the cross-sectional area of a fluid flow directly affects the velocity of the fluid.
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Agricultural practices in the United States nearly led to the extinction of the peregrine falcon during the 1950s and 60s true or false
what is the name of the stage where cell cycles replicate
The affective losses of alzheimer's disease refer to losses noticed in the individual's:
People with pure autonomic failure lose nervous system control over their heart rate, breathing, sweating, etc. what, if anything, happens to their emotions?
Which type of climate has no winters
A: humid tropical
B: dry
C: polar
D: highland
Answer:
Option (A)
Explanation:
Winters are usually characterized by the presence of low temperatures and shorter duration of the day, and it occurs between the season of autumn and spring. This type of cold climate occurs mainly in the high elevated region, higher latitudinal location such as polar regions and is mostly comprised of dry air.
The humid tropical type of climate occurs in the region between the two tropics and is characterized by the presence of high temperatures and heavy rainfall, as these regions are exposed to the maximum amount of sunlight.
Thus, the humid tropical type of climate has no winters.
Hence, the correct answer is option (A).
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What is the mRNA sequence and tRNA sequence of ATGGGCTTAGCA
Which is part of the theory of evolution by natural selection apex?
The theory of evolution by natural selection suggests that organisms best adapted to their environment are most likely to survive and pass on their characteristics. Evolution acts on existing variations in a population and does not aim at creating the 'perfect' organism. This theory explains the unity and diversity of life.
Explanation:The theory of evolution by natural selection, also known as survival of the fittest, suggests that organisms best adapted to their environment are most likely to survive and pass on their characteristics to their offspring. An important thing to acknowledge is that evolution is not aimed at perfection. Instead, it acts on existing variations in a population, not creating anything new, but rather choosing the most fitting among the available.
Natural selection was proposed by Darwin and is considered the unifying theory of biology. It postulates that all life has evolved and diversified from a common ancestor due to a process called mutation. Mutation gives rise to variations in a population, which if favorable, are passed on to the next generations through reproduction.
The theory of evolution embraces both the unity and diversity of life, explaining why organisms may have common traits (unity) while also having unique characteristics that differentiate them from one another (diversity).
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When we look at islands across the planet (think the islands of the galápagos and hawaii) we see that there are a remarkable number of island endemic species, species that are found nowhere else. what is a possible explanation for this observation?
A remarkable number of species on an island that are found nowhere else is a result of island isolation that promotes allopatric speciation where there is an evolution of species caused by the geographic isolation of two or more populations of a species. These results to increase biodiversity of species found on the island.
Ovulation typically occurs ________ days before the menstrual period begins. question 90 options: 7 10 20 14
Ovulation, the release of a mature egg from the ovary, usually happens approximately 14 days before the start of the menstrual period. It is part of the menstrual cycle which can vary in length between different women.
Explanation:In a woman's menstrual cycle, ovulation typically occurs about 14 days before the next menstrual period begins. This is generally the case for cycles that are around 28 days long, which is often used as a standard, but please note cycle lengths can vary between women and from one cycle to another for the same woman. Ovulation is the process when a mature egg is released from the ovary, and this egg is then available to be fertilized by sperm.
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Ovulation typically happens around 14 days before the menstrual period begins considering a usual menstrual cycle of 28 days. It is a phase of the menstrual cycle when the mature egg gets released from the ovaries.
Explanation:Ovulation, being a part of the menstrual cycle, typically happens approximately 14 days before the menstrual period begins. The menstrual cycle varies among women, typically around 28-30 days. It's split into multiple phases: menstrual phase, follicular phase, ovulation, and luteal phase. Ovulation occurs during the midpoint of the cycle when the matured egg is released from the ovaries. If it doesn't get fertilized, the lining of the uterus sheds, leading to the menstrual period. Therefore, if we consider an average menstrual cycle of 28 days, the ovulation should be on the 14th day, which makes it roughly 14 days before the menstrual period.
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True or false: certain household plants, such as mistletoe, can be toxic to birds. ansc207
The latitudes in this biome have evenly distributed precipitation throughout the year.
Answer:
The answer is Lower scopes of Coniferous Forests.
Explanation:
In the lower scopes of coniferous backwoods, precipitation is all the more uniformly disseminated consistently. This can be discovered in Canada, Europe, Asia, and the United States; they generally comprise of conifers trees that develop needles and cones rather than leaves and blooms separately.
""double effect" refers to a situation in which a beneficial action may have potentially harmful side effects"
The answer is True. Doing something morally good has a morally bad side-effect is known as double effect, it is ethical to do it provided that the bad side-effect is not your intention. This is common in the case where a doctor gives drugs to a patient to relieve painful symptoms even though he knows doing this may shorten the patient's life.
Why are lipoproteins needed to transport lipids in the bloodstream? g?
Lipoproteins are needed to transport lipids because they combine with proteins to form water-soluble carriers, transporting insoluble lipids through the bloodstream. They vary in density and function to deliver lipids to various tissues and to aid in cholesterol management.
Explanation:Why are lipoproteins needed for lipid transport in the bloodstream?Lipids, such as cholesterol and triglycerides, are hydrophobic molecules that are insoluble in the bloodstream, a water-rich medium. Lipoproteins are essential for the transport of these lipids because they serve as soluble carriers that can navigate through the aqueous environment of the blood. Lipoproteins are composed of a lipid core surrounded by phospholipids and proteins, enabling them to transport lipids effectively.
There are five categories of lipoproteins differing in their lipid-to-protein ratio, which influences their density. Chylomicrons, with the highest lipid content, are the least dense and are responsible for transporting dietary lipids from the intestines to the liver and other tissues. Very low-density lipoproteins (VLDLs) carry triglycerides synthesized by the liver to tissues for storage or energy. As VLDLs lose triglycerides, they become intermediate-density lipoproteins (IDLs), which further transition to low-density lipoproteins (LDLs), responsible for carrying cholesterol to cells. High-density lipoproteins (HDLs), also known as 'good cholesterol', help transport cholesterol back to the liver for excretion or recycling. These lipoprotein classes are vital for lipid metabolism, cellular function, and the prevention of arterial plaque formation.
Lipoproteins are thus crucial not only for lipid transportation but also play a role in maintaining cardiovascular health by helping manage cholesterol levels, reducing the risk of atherosclerosis, heart attacks, and strokes.