Suppose that you were a researcher trying to understand how rising levels of atmospheric CO2 might affect ragweed plants, and thus seasonal ragweed allergies. What questions, hypotheses, and predictions might you want to study
Answers
Prediction a - Plants grown at higher CO2 levels will produce more pollen.
Hypothesis 2 b - CO2 levels affect the concentration of protein allergens in ragweed pollen.
Prediction c - Plants grown at higher CO2 levels will produce higher concentrations of allergens.
Researchers developed two hypotheses to explain why ragweed allergies appear to be getting worse as the global climate changes.• CO2 levels affect ragweed pollen production, with plants that grow at higher CO2 levels producing more pollen.
CO2 levels affect the concentration of allergens (the proteins that actually trigger allergic reactions) found in ragweed pollen, with plants that grow at higher CO2 levels characterized by pollen with higher concentrations of allergens.
The image is attached below showing the flow chart with answers.
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Related Questions
when the kidney's own blood supply decreases, they release _ which leads to secretions of aldosterone from the adrenal cortex
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When the kidney's own blood supply decreases, they release renin, which leads to secretions of aldosterone from the adrenal cortex.
Renin is an enzyme produced by certain kidney cells. It is a component of the renin-angiotensin-aldosterone system, which regulates blood pressure through a chain of reactions. Specifically, renin regulates the adrenal glands' synthesis of the hormone aldosterone.
Renin transforms angiotensinogen (a liver-produced precursor to angiotensin) into angiotensin I. Angiotensin is a hormone that causes constriction of the blood vessels.Angiotensin I is then converted to angiotensin II. Angiotensin II constricts blood vessels and promotes aldosterone release.Aldosterone helps the kidneys retain water and salt, thereby boosting the body's water content. This causes the blood pressure to rise.Learn more about renin here :
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In a living organism, the decay of C-14 produces 15.3 disintegrations per minute per gram of carbon. The half-life of C-14 is 5730 years. A 3.4 g sample of bone has 14.3 disintegrations per minute. How old is the bone sample in years
Answers
The bone sample is 27,140 years old.
First, calculate the ratio of disintegrations per minute per gram of the mammoth with that of living organisms.
Ratio = 0.50dis/mingC / 15.3dis/mingC
Ratio = 0.0327
The ratio is equal to
Ratio = 2^-(t / t_0.5)
log(Ratio) = -(t / t_0.5) * log2
t = -t_0.5 * log(Ratio) / log2
= -5730yr * log0.0327 / log2
= -5730yr * (-1.4257) / 0.30103
t = 27,140years
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Beginning with a fertilized egg (zygote), how many cells will be present in the embryo following five rounds of cell division
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When a female and male reproductive gametes fuse and fertilize to form a diploid cell is called a zygote.
The number of cells an embryo will have is 32cells.
How, explain your answer?It is a single-celled organism formed as a result of fertilization while embryos are the organism in which the division has started after zygote formation.
The division can be explained as:
The cells divide into two cells that is the number of cells doubles with every division.
The number of cells after division is represented as = n
The number of cells can be calculated by the following formula =
In the above case n = 5
So,2x2x2x2x2
Therefore, 32 cells will be produced in the early embryo.
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Women and men typically have the same normal microbiota in their reproductive systems. Group of answer choices True False
Answers
Answer:False
Explanation:
Benjamin has a sunny disposition, while Fred tends to be somber. __________ are scientists who have the specific tools to help us determine the proportion of these differences due to genes versus environment
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Benjamin has a sunny disposition, while Fred tends to be somber. Behavior geneticists are scientists who have the specific tools to help us determine the proportion of these differences due to genes versus the environment.
Behavioral Geneticists take a look at the relationship between human and animal traits (on one side), and biology (on the opposite). In other phrases, in case you're a Behavioral Geneticist, you discover the technology at the back of sure tendencies (competitive behavior, for instance) to determine what precisely reasons them.
For example, to the quantity that genes predispose an individual towards aggressive behavior, together with violence closer to others, dad and mom and children will display similarities in this region of conduct.
Behavioural genetics became founded as a scientific discipline with the aid of Francis Galton inside the late 19th century, simplest to be discredited through association with eugenics movements earlier than and during international conflict II.
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Select the correct answer.
If the contents of a cell have a solute concentration of 0.04 percent, which of these solutions would cause it to swell?
A.
10–percent solute concentration
B.
1–percent solute concentration
C.
0.1–percent solute concentration
D.
0.01–percent solute concentration
Answers
In osmosis phenomenon, water moves from the hypotonic solution to the hypertonic one. Option D is correct. 0.01–percent solute concentration.
What is osmosis?Osmosis is the phenomenon that occurs when two dilutions of different concentrations are separated by a semipermeable membrane. The membrane allows the pass of water but not solute. Hence, water can move from the most diluted side to the less diluted one.
Water tends to go from the hypotonic solution to the cell interior and keeps doing so until concentrations are equal in the cell interior and exterior.
As water enters the cell, the cell begins to enlarge and becomes bigger-sized. And because cells can not limit the amount of water moving into it, the cell keeps swelling until the membrane can not stretch anymore, and lysis occurs. It bursts.
Under natural conditions, the body regulates the extracellular fluids to avoid cells swelling until they burst.
In the exposed example, the cell have a solute concentration of 0.04 percent. For water to move into the cell, we need to find a solution with a lower solute concentration.
Among the options, the solution with 0.01 percent of solute concentration is the one that would cause water to move into the cell.
The cell content is hypertonic to the solution, and the solution is hypotonic to the cell interior.
Option D is correct. 0.01–percent solute concentration
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which of the following is an example of succession
Answers
Answer:
An example of succession in that After a disaster, small plants begin to grow in the affected area and are then replaced by larger plants. That is option D.
What is succession?
Succession is defined as the colonization of a disaster affected land by a new species.
For example, when small plants begin to grow in the affected area and are then replaced by larger plants.
Therefore, an example of succession in that After a disaster, small plants begin to grow in the affected area and are then replaced by larger plants.
The phlebotomist is preparing to remove her gloves after a venipuncture and notices blood on the gloves. Where should the phlebotomist dispose of her gloves
Answers
The phlebotomist should dispose off her gloves in the biohazard waste disposal.
Phlebotomy is the procedure of inserting a cannula into a vein, typically in the arm, in order to extract blood. Venipuncture, the term for the process, is also used to describe intravenous therapy.Typically, the blood is submitted to a lab for analysis. However, in other cases, the blood is removed to address specific medical issues. The term for this is therapeutic phlebotomy. It eliminates additional red blood cells, blood cells with odd shapes, and superfluous iron.Gloves and other personal protective equipment with blood or other bodily fluids on them, as well as cultures of human or animal specimens are biohazards and are put any waste from different cultures or infectious agents in the red biohazard container.learn more about Phlebotomy here: https://brainly.com/question/15071607
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Essay help please? Animal systems class
Identify a major advancement in animal agriculture to research and write an essay on what you find. Explain how the advancement affected the animal-agriculture industry, and the types of professionals that were involved in its invention or application.
Then, propose your own invention to boost farm-animal production, and describe the effect it would likely have.
Submit both of your essays.
Answers
Through the agricultural GPS it is possible to monitor all employees, checking if they are performing their tasks correctly. It also allows tracking vehicles and equipment, making it virtually impossible to steal or steal in the business and reduce the time of searching for machines in the plantation.
Invention to increase animal production?GPS in each animal, so you could know if an animal walked a lot or ate a little, affecting the quality of the meat and the size of the animal, being able to match all the animals.
With this information, we can conclude that the use of new technologies in agriculture and livestock helps to improve production yields.
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If a mouse and a small lizard of the same mass (both at rest) were placed in experimental chambers under identical environmental conditions, which animal would consume oxygen at a higher rate
Answers
The mouse, because it is an endotherm and therefore its basal metabolic rate is higher than the ectotherm lizard's standard metabolic rate.
What are endotherms and ectotherms?Animals classified as ectotherms and endotherms employ several techniques to control body temperature.
Endotherms are recognized as warm-blooded creatures, whereas ectotherms are also referred to as cold-blooded creatures. Ectotherms and endotherms vary primarily in that endotherms control their body temperatures by sustaining bodily functions, but ectotherms depend on external sources like sunlight to do so. Ectotherms include invertebrates, fish, amphibians, and reptiles while endotherms include mammals and birds.
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Peter and rosemary grant began studying the galapagos finches in 1973. For about 40 years, they studied the finches on daphne major. Why was this an ideal place to study the evolution of the finches?.
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Peter and rosemary discovered a natural ecosystem with an extreme climate, oscillating between cycles of intense drought and abundant rainfall, as well as an uncontaminated area that had never been explored by humans. This was an excellent location to study the evolution of Galapagos finches.
For their outstanding long-term studies showing evolution in action in Galápagos finches, Peter and Rosemary Grant are renowned.They have shown that natural selection is responsible for the incredibly quick changes in body and beak size in response to variations in the availability of food.Due to the lack of predators or rivals for the finches, Daphne Major makes an excellent location for research. (The cactus finch is the only other finch on the island.) The weather, and consequently the availability of food, has a significant impact on the medium ground finch's capacity to survive.learn more about Galápagos finches here: https://brainly.com/question/960688
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Passing a law to allow doctors to euthanize humans who are terminally ill, involves ethics. TRUE or FALSE?
Answers
Answer:
TRUE
Explanation:
Euthanization is a complex process which not only involves death and the feelings of the loved ones of the deceased, it also comes under the subject of human rights. Not every doctor has the right to euthanize any random terminally ill patient just because he/she wants to end the patient's suffering.
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Water molecules can establish weak ____________ with one another because they are ____________ (have a slightly positive end and a slightly negative end). Further, water is able to adhere to ____________ tracheids and vessels.
Answers
Answer:
1.hydrogen bonds
In this topic, you learned about the immune response and how vaccines are used to build immunity against certain diseases. You will further your understanding of vaccinations by creating an infographic illustrating how they work. An infographic (Information Graphic) is a visual representation of data or information that is intended to explain complex concepts quickly and clearly. Your infographic should include relevant icons, pictures, charts, and/or graphs with text-based information that communicates how vaccines work to build immunity against certain diseases. Visit the Center for Disease Control and Prevention (CDC) Global Health - Infographics resource library to view a variety of infographic examples
Answers
Vaccines are fundamental in preventing and avoiding the spreading of diseases by boosting the immune system against pathogenic microorganisms and viruses.
What is a vaccine?A vaccine is any formulation administered to the body with the aim of boosting the immune system again infections.
Vaccines may consist of nucleic acids (DNA or RNA) or proteins present in the pathogen in order to create immunologic memory by means of antibodies.
These antibodies are able to bind antigens in the pathogens and thus trigger a concomitant immune response.
In conclusion, vaccines can prevent diseases by boosting the immune system.
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For each glucose that enters glycolysis, _____ NADH enter the electron transport chain. For each glucose that enters glycolysis, _____ NADH enter the electron transport chain. 0 4 2 6 10
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For each glucose that enters glycolysis, 10 NADH enter the electron transport chain.
NADH and FADH, which function as electron transporters as they move through the inner membrane region, are involved in the processes of the electron transport chain. Electrons are transferred from NADH to the electron transport chain at complex I, where they transit through the other complexes. In this mechanism, NADH is oxidized to NAD.The four protein complexes of the electron transport chain use this energy to oxidize NADH and FADH2 (ETC). Each of the three previous stages of respiration—glycolysis, the conversion of pyruvate into acetyl-CoA, and the citric acid cycle—contributes two of the ten NADH molecules that enter the electron transport. The citric acid cycle contributes six of the molecules. The citric acid cycle is where the two FADH2 come from.learn more about Electron transport chain here: https://brainly.com/question/18686654
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what is meant by hydrolysis?
Answers
Is pyruvate oxidation the same as pyruvate processing
Answers
Answer:
NO
Explanation:
Pyruvate processing Each pyruvate is processed to release one molecule of CO2, and the remaining two carbons are used to form the compound acetyl CoA. The oxidation of pyruvate results in more NAD+ being reduced to NADH. Energy use. ATP.
Stage _____ of NREM sleep represents the beginning of actual sleep.
A. One
B. Two
C. Three
D. Four
Answers
Answer: B. Two
Explanation:
During the first stage, your body starts relaxing and falling into sleep. This is the lightest stage of sleep. You can wake easily during this stage, and are not "fully" asleep.
During the second stage, your body deepens into it's sleep, your heart rate decreases, your body temperature decreases, and more. This is the stage that "represents the beginning of actual sleep" which is the answer to your question.
During the third stage, your body is in a deeper state of sleep. Your muscles relax further, your breathing rate slows, and more.
During the fourth stage, your heart rate and body temperature rise again. Your brain is a bit more active, and your muscles start to "wake up" slowly again.
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Why does an increase in total resources or number of added resources commonly lead to declines in species diversity
Answers
It is so because there is an increase in the number of superior competitors which eventually exclude the lesser competitors. Therefore there is a loss in species diversity.
What is species diversity?It is defined as the number of different species present in an ecosystem and relative abundance of each of those species.Diversity is greatest when all the species present are equally abundant in the area.Due to more resources, one species becomes dominant and excludes others.Diversity is inversely proportional to dominance.Species diversity is usually highest at intermediate values of resources.Learn more about species diversity here:
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A given organism has 46 chromosomes in its karyotype. Therefore, we can conclude that it must _____. A. be human B. be an animal C. reproduce sexually D. have gametes with 23 chromosomes
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Any product, substance, or organism included by its nature or by the regulation in any of the classes listed in the schedule (UN ( Classes of Hazardous Materials) is the definition of a/an:
Answers
Their are 9 class of hazardous material:
1 CLASS 1 : Explosive
2 CLASS 2 : Gases compressed, liquefied, dissolved under pressure or deeply refrigerated.
3 CLASS 3 : inflammable liquids.
4 CLASS 4 : Inflammable solids, substances liable to spontaneous combustion substances which on contact with water emit inflammable gases.
5 CLASS 5 : Oxidising substances, organic peroxides.
6 CLASS 6 : Poisonous (toxic) and Infectious substances.
7 CLASS 7 : Radioactive substance.
8 CLASS 8 : Corrosives.
9 CLASS 9 : Miscellaneous dangerous substance.
Hazardous :A hazardous material is any item or agent (biological, chemical, radiological, and/or physical) that has the ability to cause harm to humans, animals, or the environment. This could be as a result of the material by itself or interaction with other materials.
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How does the structure of cardiac muscle help it perform its function?
• Its spindle-shaped cells allow it to do smooth movements.
• Its striations allow for big movements.
• Its discs allow it to coordinate movement with other cells.
• Its multinucleated cells allow it to trigger involuntary actions.
Answers
Its spindle-shaped cells allow it to do smooth movements which is how the structure of the cardiac muscle helps it to perform its functions.
What is Cardiac muscle?This is also referred to as the myocardium and is the thick middle layer present in the region.
It resists fatigue and contracts in a coordinated manner through spindle-shaped cells thereby ensuring that the smooth movement allows blood to be pumped to other parts of the body. This is the reason why option A was chosen as the most appropriate choice.
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Answer:
A
Explanation:
ꖎ↸ ⊣⚍ᒷᓭᓭ
Arthritis and other similar diseases can cause a narrowing of the spinal foramen. The images below show a healthy spine and a spine with a narrow foramen.
Two illustrations depict healthy spinal foramen and narrow spinal foramen. The narrow spinal foramen has pinched nerve flow.
Which symptom would an individual with a narrow foramen most likely experience?
A.
poor posture from loss of tendon attachment sites
B.
lower blood pressure from increased blood flow
C.
back pain from the compressed nerves
D.
increased flexibility from the constriction of muscle
Answers
A narrow foramen can lead to increased flexibility from the constriction of muscle. Option D
What does a narrow foramen cause?A narrow foramen, or a narrowed opening in the skull, can cause compression of the structures that pass through the foramen. This can include nerves, blood vessels, and other structures.
Depending on the specific foramen and the structures affected, this can lead to a variety of symptoms such as numbness, weakness, pain, and other neurological deficits. In some cases, a narrow foramen may not cause any symptoms and may be discovered incidentally.
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Which scientist's work with Streptococcus pneumoniae in the late 1920s provided early evidence that DNA was the genetic material of cells
Answers
Fred Griffith scientist's work with Streptococcus pneumoniae in the late 1920s provided early evidence that DNA was the genetic material of cells.
Who is Fred Griffith?Frederick Griffith was the first to identify bacterial transformation, in which a bacterium's structure and function change, in 1928 while working to create a pneumonia vaccine. He was researching both virulent and nonvirulent Streptococcus pneumoniae.
What is Fred Griffith experiment?In the pivotal experiment, Frederick Griffith (1928) combined live R and S that had been destroyed by heat; he then injected the mixture into mice; the animals perished. The tissues of the dead mouse contained living, smooth-coated bacteria resembling S.
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Question 1
Part A
Can you map shape I onto shape Il by a sequence of transformations? If so, give a sequence of transformation that maps shapes l onto shape ll.
Answers
Answer:
What am I doing?where is shape I ?where is shape II ?Hope you can atleast correct this if you really need an answer.
Good luck ✅.Most ATP generated during the cellular respiration of glucose is made by oxidative phosphorylation. true or false
Answers
it is True that Most ATP generated during the cellular respiration of glucose is made by oxidative phosphorylation.
From one glucose molecule that has been transformed into pyruvate, the Krebs's cycle generates 24-28 ATP molecules.Pyruvate enters the citric acid cycle under aerobic conditions and proceeds through oxidative phosphorylation, which results in the net synthesis of 32 ATP molecules.The inner membrane of the mitochondria contains a number of chemical compounds and proteins that make up the electron transport chain. In a sequence of redox reactions, electrons are transferred from one component of the transport chain to another. In these processes, energy is released as a proton gradient, which is then utilized to produce ATP through a process known as chemiosmosis. Oxidative phosphorylation is a process that involves both chemiosmosis and the electron transport chain.learn more about cellular respiration here: https://brainly.com/question/2809259
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Hypocalcemia stimulates __________. A. secretion of renin B. an increase in blood urea nitrogen C. a decrease in aldosterone production D. secretion of parathyroid hormone
Answers
Answer:
D. secretion of parathyroid hormone
Explanation:
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Why do you think it is important that chromatin thicken and shorten into chromosomes during prophase?
Answers
Answer:
During prophase, the strands of chromatin, which are highly extended during interphase, shorten, thicken and resolve themselves into recognizable chromosomes
Explanation:
3. Which of the following are abiotic factors that make up the climate of a terrestrial biome? (Choose all that apply)
temperature
sediments
moisture
sunlight
Answers
Temperature, moisture and sunlight are abiotic factors that make up the climate of a terrestrial biome.
What are abiotic factors?Abiotic factors are environmental conditions that form the ecosystem together biotic (life) factors.
Abiotic factors are variable according to the type of biome and they are fundamental to sustaining life.
In conclusion, temperature, moisture and sunlight are abiotic factors of a terrestrial biome.
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The process of glycolysis breaks one 6-carbon glucose molecule into two 3-carbon ______________ molecules. Group of answer choices ATP pyruvate NADH CO2
Answers
The process of Glycolysis breaks one 6-carbon glucose molecule into two 3-carbon molecules, 2 NADH AND 2ATP molecules.
What is Glycolysis?Glycolysis is the metabolic process that converts glucose into pyruvic acid to produce energy.The process takes place in the cytoplasm of a cell and does not require oxygen.It occurs in both aerobic and anaerobic organisms.Glycolysis is the primary step of cellular respiration, which occurs in all organisms.Six enzymes are involved in the process.The end product of the reaction includes 2 pyruvate, 2 ATP, and 2 NADH molecules.To learn more about Glycolysis,
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