true or false? population doubling time is an effective means to show the increasing rate of human population growth.
Answers
The given statement about population is TRUE.
How does doubling result in population increase?A population's doubling time is the amount of time it takes for it to double in size or value. It is used to account for population expansion, inflation, resource extraction, product consumption, compound interest, the amount of malignant tumors, and a wide range of other factors that tend to increase with time.
That is the exponential or power of double growth. When a rise in a quantity is proportionate to the size of the quantity, it is said to be exponential growth. Quantity can refer to numbers, such as the total number of people in a population, or it can refer to another measurement, such the amount of energy utilized.
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Related Questions
7. A hen's egg with the shell dissolved is placed in a 10% salt solution. Relative
to the interior of the egg the salt solution is
A. Hypotonic
B. Isotonic
C. Hypertonic
D. Semi-permeable
Answers
The salt solution is Hypertonic.
Hypertonic fluids contain a higher concentration of solute compared to plasma and interstitial fluid.What is hypertonic solution?A solution that contains more dissolved particles than is found in normal cells and blood.Cells placed in hypertonic solution will shrink. Water moves from a high water concentration inside the cell to a low water concentration outside of the cell by osmosis.What is osmosis?Osmosis is the movement of water molecules from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules, through a cell's partially permeable membrane.Osmosis is a passive transport process during which water moves from areas where solutes are less concentrated to areas where they are more concentrated.To know more about osmosis here
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what is the purpose of the triad?
Answers
Triad is a skeletal muscle substructure responsible for the regulation of excitation-contraction coupling.
A triad is the structure formed by a T tubule with a sarcoplasmic reticulum (SR) known as the terminal cisterna on either side. Triad allows for Ca2+ release when a muscle fiber is excited.
The T tubules transport an electrical impulses that stimulate calcium release from the sarcoplasmic reticulum. Each skeletal muscle fiber has thousands of triads, visible within the muscle fibers they are arranged in longitudinally sections. The side effect of a triad are Nausea, vomiting, abdominal pain, constipation and dry mouth.
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Use the information you have already gathered, in addition to a few other properties of minerals, to identify the seven minerals in the chart below.
Answers
Metal alloys, such as iron, copper, and zinc, essential for industrializing any society. As a result, regions of the world that are currently making the transition from developing to industrialized civilizations have a quickly increasing need for raw minerals.
What are the important properties of minerals?Nutrients called essential minerals are required to keep the body healthy. There are 13 different significant minerals in total. These are necessary for development, mobility, the creation of energy, and other metabolic processes.
Therefore, Crystal shape, color, hardness, cleavage, and specific gravity are among the most prevalent physical characteristics. Examining the crystal form of a mineral is one of the finest ways to identify it (external shape).
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what is the biodiversity score of farmland (maize)?
Answers
Answer:
Required Answer:-The intensification of agriculture has caused dramatic declines in farmland biodiversity (Carvalheiro et al., 2013; Senapathi et al., 2015). Since the 1990s, agricultural policies have been developed in Europe to mitigate this loss through agri-environmental schemes (AES). One AES is “sown wildflower strips”, the aim of which is to create new ecological infrastructures by sowing attractive wild flowers on arable land (a few % of the cultivated area). These ecological infrastructures fall within our definition of MIMS since they represent a massive introduction of managed species in the landscape.
what is the meaning of sex linked genes
Answers
Answer:
Sex linked genes is a trait in which a gene is found on a sex chromosome, males are the one that carry most/ more of the mutation.
Explanation:
Hope it helps.
Is alfalfa gmo? Yes or no
Answers
Answer:
Yes, I'm pretty sure it is. Hopefully, this helps.
Explanation:
Answer:
yee
Explanation:
In the sample of water, there are 100 atoms of oxygen and 200 atoms of hydrogen. How will the mass of oxygen compare to the mass of hydrogen?
Answers
Answer:
The ratio of the mass of an oxygen atom to the mass of a hydrogen atom is therefore approximately 16:1. If we have 2 atoms of each element, the ratio of their masses is approximately 32:2, which reduces to 16:1—the same ratio.
The mass of oxygen compared to the mass of hydrogen is approximately 16:1.
What is a chemical reaction?
There are several types of chemical reactions depending on the reaction mechanisms: combination, single-displacement, double-displacement, combustion, decomposition, combustion and redox reactions.
Thus, 16:1 is the answer.
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In each image below, the DNA antisense strand is on the top. Which image shows the correct RNA molecule being formed on the bottom?
Answers
Answer:
Is the third answer
Explanation:
I have just done it
Third image shows the correct RNA molecule being formed on the bottom. So, the correct option is C.
What is RNA molecule?A crucial part of a cell's biology is played by the molecule known as RNA, also known as ribonucleic acid. It is a single-stranded nucleic acid made up of nucleotide-based building units.
Protein synthesis, gene control, and the storage and transmission of genetic information are just a few of the biological processes that RNA is engaged in. Messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA) are the three primary subtypes of RNA.
A binds to A, C attaches to G, and vice versa in the RNA sequence, which is complementary to the antisense DNA strand. Therefore, UAGCU would be the appropriate RNA sequence for the antisense DNA strand ATCGA.
Therefore, the correct option is C.
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the rise in herd immunity amongst a population can be directly attributed to the rise in herd immunity amongst a population can be directly attributed to antibiotic-resistant microorganisms. none of the answers is correct. vaccinations. increased use of antibiotics. improved handwashing.
Answers
The increase in herd immunity in a community is directly caused by germs that are resistant to antibiotics. The appropriate response is vaccinations.
When bacteria, fungi, and other microbes develop resistance to the drugs designed to kill them, it is said to be antimicrobial resistance. That implies that the bacteria persist and develop. Resistant infections can be challenging, if not impossible, to treat.
The administration of a vaccine aids in the immune system's development of disease immunity. Vaccine components include proteins or poisons from the organism as well as microbes or viruses that are weak, alive, or dead. They help by increasing the body's adaptive immunity, which helps to avoid illness from an infectious disease.
When a large enough percentage of a population has received a vaccination, herd immunity occurs. Herd immunity protects those who might have compromised immune systems and are unable to receive a vaccination since even a less potent version would harm them.
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How is the chromosomal theory of inheritance related to Mendel's finding?
Answers
The chromosomal theory of inheritance is directly related to Mendel's findings as it provides a physical basis for the inheritance patterns observed by Mendel in his experiments with pea plants.
Mendel's findings established the fundamental principles of inheritance, such as dominance, segregation, and independent assortment. The chromosomal theory of inheritance, proposed by Walter Sutton and Theodor Boveri, linked these principles to the behavior of chromosomes during meiosis. It suggests that genes are located on chromosomes and are responsible for the traits Mendel observed. The chromosomal theory of inheritance essentially connects the concepts of genetics and cytology.
By observing chromosome behavior during meiosis, Sutton and Boveri discovered that chromosomes segregate and assort independently, similar to Mendel's principles. This established a direct relationship between Mendel's findings and the chromosomal theory of inheritance. In this context, Mendel's "factors" or units of heredity can be considered genes that are located on chromosomes. The chromosomal theory of inheritance further validates and expands upon Mendel's principles by providing a physical basis for how these genetic factors are inherited and expressed.
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Where do you find the x axis
Answers
Answer:
An x-axis is one of the axes of a two- or three-dimensional graph. The x-axis is the horizontal plane of a graph in a Cartesian coordinate system, which gives a numerical value to each point along the horizontal x-axis, as well as the vertical y-axis (in a two-dimensional graph).
Explanation:
X-axis is the line where the values of y-coordinate are zero for all the values of x. Then the data points for the x-axis are: (1,0), (-1.5, 0) Therefore the equation of the x-axis is y = 0, and its graph on the x and y graph chart is shown below.
Answer:
A coordinate grid has two perpendicular lines, or axes (pronounced AX-eez), labeled just like number lines. The horizontal axis is usually called the x-axis. The vertical axis is usually called the y-axis. The point where the x- and y-axis intersect is called the origin.
Explanation:
Malaria parasite reproduces inside the
A.Epithelial cells
B.red blood cells
C.white blood cells
D.Reproductive cells
Answers
Answer:
The answer is option b.
Red blood cells.
Hope this helps.
Answer:
Red blood cellsExplanation:
The malaria parasite plasmodium falciparum is a protozoan that reproduces in red blood cells(RBCs).
hope this helps....
Good luck on your assignment...
Research on laboratory rats suggests that hunger is controlled by the
A. prefrontal cortex
B. hypothalamus
C. amygdala
D. cerebellum
Please select the best answer from the choices provided
Answers
Answer:
b hypothalamus
Explanation:
The hypothalamus controls hunger and satiety. Therefore, option (B) is correct.
What is the role of hypothalamus?
The hypothalamus regulates circadian rhythms, appetite, thirst, and body temperature. The study of illnesses and diseases associated to the neuroendocrine system may benefit from using rat hypothalamic neurons.
The arcuate nucleus, or infundibular nucleus in humans, is a region of the hypothalamus that permits peripheral peptides and proteins to cross the blood-brain barrier and interact with its neurons.
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complete the sentences from George Bernard Shaw's the doctors dilemma with word
s that are punctuated and spelled correctly this of course does amount to a sort of working of rule of thumb( options: conscience:
conscience.
conscience
conscience; ) but it means that you'll do anything good or ( options: bad:
bad,
bad;
bad. ) provided you get enough people to keep you accountants by doing it also it is the sort of conscience that makes it possible to keep order on a pirate (options: ship:
ship;
ship
ship. ) or in a troop of bringings it may be said that in the last analysis there is no other sort of Honor or conscience in existence that the ascent of the majority is only sanction known to ethics
Answers
Answer:
The correct answers are:
1. D : conscience;
2. B : bad,
3. D : ship,
Explanation:
The first answer requires a semicolon because we have two separate sentences, this is, two independent clauses, and in this case, we use the semicolon to connect them.
The second answer requires a comma as we have an appositive that does not provide essential information, so we separate it with a coma to designate additional information and maintain the structure of the sentence complete and clear.
The third answer requires a comma before the conjunction or because the rest of the sentence means the same as what precedes it. In this case, we use a comma as a sign of equivalence, to clarify that pirate ship is equivalent to a troop of brigands.
this is the correct answer
Which best summarizes the process of protein synthesis what was friedrich miescher contribution to the discovery of the genetic code
Answers
Answer:
He identify DNA as a distinct molecule of the cell.
Explanation:
In the year 1869, Friedrich Miescher separated "nuclein," DNA with associated proteins, from cell nuclei. He was the first scientist who identify DNA and considered as a distinct molecule present in the cell. He is well known for his incorrect tetranucleotide hypothesis of DNA. He formed the first photograph of the structure of DNA and also created the first accurate model of structure of DNA.
testable questions: How will the grass growth rate affect the rabbits?
Questions:
what is the manipulated variable, responding variable and the constant?
Answers
Answer:
the manipulated variable is the growth rate of the grass, or the amount of food the rabbits have. the responding variable is the rabbits themselves. the constant is everything else in the scenario. the environment, the predators, etc.
3. Which structure protects the developing embryo of a beech tree?
A. cotyledon
B. cuticle
C. seed coat
D. stomata
Answers
Answer:
Seed Coat
Explanation:
Help I’ll give brainless please
Answers
The mass of the wax after the melting would still be exactly 50 g
Law of conservation of massA cornerstone of physics and chemistry is the law of conservation of mass, commonly referred to as the principle of mass conservation. It asserts that mass cannot be created or removed in a closed system.
In other words, the total mass of a closed system remains constant over time, regardless of any physical or chemical changes that may occur within the system.
Since the mass of the wax would not change, it would be right to say that by this law, the melted wax would stull weigh 50g
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The abaity to determine the age of some individuals can be citiicult if there are not quality government records of birth, Bone growth takes place at the growit plates at the end of long bones. Once all growth plates fuse, growth stops, and an individual is considered a biological adult The age at which growth plates fuse for males in approximately normally distributed with a mean of 19.1 years and a standard deviation of 16 ronceths Complete parts (a) through (d) (a) What is the probability a male's growh plates fuse after age 20 ? The probability a male's growh plates fuse aftar age 20 is (Round to four decimai places as needed) (b) What is the probability a male's growth piates fuse belore age 17? The probability a male's growh plates fuse before age 17 is (Round to focir docimal places as needed) (c) What proportign of male growth plates fuse betwenn 16 and 17 years of age? The proporicon of male growth plates that fuse thetween 16 and 17 yeas of age is (Round to four deciesal places as needod) (d) Would it be unusual for a male's growth plates to fust when he is 21 years old or alder? Explain. This event unusual, because (Round to four decimal places as needed) is equal to which is
Answers
(a) What is the probability a male's growth plates fuse after age 20?The given mean is μ = 19.1 and the standard deviation is σ = 16/12 years. The value we want to find is P(X > 20), that is the probability that the male's growth plates fuse after age 20.Using the Z-score formula, we have:
z = (X - μ) / σz = (20 - 19.1) / (16/12)z = 0.75Using the standard normal table, the corresponding probability is 0.2266 (rounded to four decimal places).Therefore, the probability a male's growth plates fuse after age 20 is 0.2266.(b) What is the probability a male's growth plates fuse before age 17?We want to find P(X < 17), that is the probability that the male's growth plates fuse before age 17.Using the Z-score formula, we have:
z = (X - μ) / σz = (17 - 19.1) / (16/12)z = -1.3125 Using the standard normal table, the corresponding probability is 0.0940 (rounded to four decimal places).Therefore, the probability a male's growth plates fuse before age 17 is 0.0940.(c) What proportion of male growth plates fuse between 16 and 17 years of age?To find the proportion of male growth plates that fuse between 16 and 17 years of age, we need to find P(16 < X < 17), which is the area under the standard normal distribution curve between z = -0.5625 and z = -1.3125, respectively.Using the standard normal table, we have:
P(16 < X < 17) = P(z < -0.5625) - P(z < -1.3125)0.2881 - 0.0940 = 0.1941Therefore, the proportion of male growth plates that fuse between 16 and 17 years of age is 0.1941.(d) Would it be unusual for a male's growth plates to fuse when he is 21 years old or older? Explain.We want to find the probability that a male's growth plates fuse when he is 21 years old or older, that is P(X ≥ 21).Using the Z-score formula, we have:
z = (X - μ) / σz = (21 - 19.1) / (16/12)z = 1.1875Using the standard normal table, the corresponding probability is 0.1190 (rounded to four decimal places).Therefore, the probability that a male's growth plates fuse when he is 21 years old or older is 0.1190.This event is unusual because the probability of an event with a z-score of 1.1875 or higher is less than 0.1190.Since the standard deviation is relatively large, it means that the distribution is more spread out and the event is not as rare as it would be for a smaller standard deviation. Nonetheless, an event with a probability of 0.1190 is still relatively unlikely.
About Growth platesGrowth plates or commonly called growth plates are cartilaginous tissues found at the ends of long bones in children. Injuries to this area are often the main cause of growth disorders such as leg length discrepancies and angulation deformities in children. Growth plates are present in almost all bones, especially long bones such as the femur or arm bones.
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25 POINTSSSS !!!! Quick !!
Human activities that degrade ecosystems result in a loss of diversity of the living and nonliving environment.
Two ways in which humans frequently harm ecosystems and affect other organisms is through land use and pollution.
How does pollution cause a reduction in biodiversity?
A.
It causes herbivores to become carnivorous.
B.
It provides a more hospitable living environment.
C.
It changes the chemical composition of the air, soil, and water.
D.
It causes all the natural Earth cycles to stop.
Answers
Answer:
C. It changes the chemical composition of the air, soil, and water.
Explanation:
The most sensible explanation out of the choices given.
BRAINLIEST.
What is your name by the way?
what is a highly contagious viral infection of the brainstem and spinal cord that sometimes leads to paralysis
Answers
Answer: Poliomyelitis
Explanation:
Trees begin from tiny seeds, with a mass of a 2-3 grams, and yet an
adult tree can weigh many thousands of pounds. If matter cannot be
created (Law of Conservation of Matter), where did the "stuff" that
makes a tree come from?
Answers
Answer:
mm yes read me
Explanation:
the energy was already there energy never dies it just chooses what it wants to be put into
Suppose the current exchange rate between Germany and Japan is 0.02 =C/¥. The euro-denominated annual continuously compounded risk-free rate is 4% and the yen-denominated annual continuously compounded risk-free rate is 1%.
a. What are the 6-month euro/yen and yen/euro forward prices
Answers
The 6-month euro/yen forward price is 0.0201185 €/¥.
The 6-month yen/euro forward price is 49.7307 ¥/€.
To calculate the forward prices, we need to consider the interest rate differentials between the two currencies.
1. Calculate the euro/yen forward price:
Forward price = Spot price × (1 + Euro interest rate) / (1 + Yen interest rate)
Forward price = 0.02 × (1 + 0.04) / (1 + 0.01)
Forward price = 0.0201185 €/¥
2. Calculate the yen/euro forward price:
Forward price = 1 / Euro/yen forward price
Forward price = 1 / 0.0201185
Forward price = 49.7307 ¥/€
Therefore, the 6-month euro/yen forward price is 0.0201185 €/¥, indicating the amount of yen needed to buy one euro in the future. The 6-month yen/euro forward price is 49.7307 ¥/€, indicating the amount of euros needed to buy one yen in the future.
These forward prices are determined based on the interest rate differentials and expectations of future currency exchange rates.
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Describe what happens in anaphase, include a picture of the process.
Answers
Anaphase is the third stage of Mitosis or cell division (karyokinesis). During this phase, the sister chromatids separate from each other and are pulled together opposite ends for the formation of daughter nuclei.
What is Anaphase?
During the cell cycle, the actual cell division takes places in the M-phase. This M-phase is called Mitotic or Meiotic phase. Cell division occurs in cell by two processes which are Mitosis and Meiosis.
Anaphase is the third phase of mitosis, during this process the separation of the duplicated genetic material is carried out in the nucleus of a parent cell into two identical daughter cells.
In anaphase stage, the sister chromatids separate out from each other and are pulled towards opposite ends of the parent cell. The protein which holds together the sister chromatids is broken down, this allows them to separate from each other. Each chromatid is now converted into chromosome. The chromosomes of each pair are pulled towards opposite ends of the cell to form the new duaghter cells.
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Summarize in 2-3 sentences, how an RNA vaccine works to help protect you against
viruses?
I
Answers
Answer:
boost your immune system
Explanation:
Answer:
Vaccination is the process in which substances called antigens are introduced artificially into the body to stimulate the immune system, the set of cells that protects the body against infections .
Saliva, produced by glands in the mouth, plays an important role in the digestion of food. Saliva contains a chemical, called amylase, that breaks down starch in the food we eat. A scientist conducts an experiment to investigate at which temperatures amylase works the best. He hypothesizes that the reaction will occur fastest if the amylase reaction is conducted near the normal human body temperature of 37ºC (degrees Celsius). In order to test his hypothesis, the scientist measures the reaction rate, which is how fast the amylase breaks down the starch at six different temperatures. The reaction rate is rated on a scale of 0 to 10, with 0 meaning no reaction and 10 meaning the fastest reaction. The results are recorded in the data table.
AMYLASE REACTION RATE BY TEMPERATURE
Temperature (ºC)
Reaction Rate
0
2
20 4
40 10
60 8
80 2
100 0
Based on the data, should the scientist accept or reject his hypothesis?
A He should reject the hypothesis because amylase reacts at all temperatures.
B He should accept the hypothesis because amylase reacts only at body temperature.
C He should reject the hypothesis because amylase reacts faster above body temperature.
D He should accept the hypothesis because amylase reacts fastest near normal human body temperature and slower above and below normal human body temperature.
Answers
Based on the data, he should accept the hypothesis because amylase reacts fastest near normal human body temperature and slower above and below normal human body temperature.
The correct option is C.
What is the rate of a reaction?The rate of a reaction is the rate at which reactant molecules are used up or the rate at which products are formed.
In the body, the molecules that speed up the rate of the reaction occurring in the body are called enzymes.
Enzymes are mostly proteins and thus, are easily denatured by heat.
Enzymes function best at temperatures close to the body temperature of 37ºC (degrees Celsius).
An example of an enzyme is amylase found in saliva.
Amylase is responsible for the digestion of starchy foods.
Based on the results of the experiment conducted by the scientist, it can be concluded that his hypothesis is correct.
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Diesel vehicles are a major source of air pollution in the world. When diesel vehicles are driven, they release carbon monoxide,
carbon dioxide, sulphur dioxide, nitrous oxide, and other pollutants into the air. These harmful substances stay in the Earth's
atmosphere and degrade the quality of the air.
Humans must use vehicles in order to move from place to place. Which of the following would best minimize the impact this type of
travel has on the environment?
A. Encourage people to use private vehicles as much as possible.
B. Encourage people to carpool or take public transportation.
C.Reduce the price of diesel fuel so that more people can afford it.
D.Reduce the size of diesel tanks in vehicles so that they can hold less fuel.
Answers
If an mRNA strand
has 36 bases, how
many amino acids
will be in the final
protein?
Answers
Answer:
12
Explanation:
The answer would be 12 amino acids will be in the final protein
Drag each label to the correct location.
Sort the questions based on whether they are testable.
How do customers feel about
the services of airlines?
Do pollutants have a greater
effect on saltwater or
freshwater environments?
Do people who eat chocolate
have more acne?
Is it ethical to eat meat?
testable
not testable
Answers
Do pollutants have a greater effect on saltwater or freshwater environments?
What is environments?An environment is the natural world and all of the living and non-living things that exist within it. It includes physical elements such as land, air, water, and climate, as well as biological factors such as plants, animals, and other organisms. The environment is constantly changing and interacting with humans, who are also part of it. Human activities such as clearing forests, burning fossil fuels, and polluting the air and water can have a significant impact on the environment. People must take steps to protect and restore the environment in order to ensure a healthy planet and future generations.
Is it ethical to eat meat?
not testable
How do customers feel about the services of airlines?
testable
Do people who eat chocolate have more acne?
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If 15% of a DNA sample is made up of thymine, T,what percentage of the sample is made up of cytosine, C?
A)15%
B)35%
C)70%
D)85%
Answers
If thymine makes up 15 percent of the bases in a certain DNA sample, what percentage of bases must be cytosine? If the DNA is double stranded, A = T and G = C. If T = 15%, then C = 35%.