A man is on trial for the murder of his wife. The prosecution on this case would like to bring forward an expert in the field of ballistics to prove the bullet found at the crime scene was that of the defendant. This ballistics expert has a PhD in forensic science and has worked at the Ballistics Dept. at the Forensic Center in Houston, TX for 25 years. His methods are widely accepted in the scientific community. The judge finds his testimony to be relevant and allows his testimony to be heard. Which correctly describes the admissibility of this expert's testimony? A) Frye standard B) Daubert ruling C) Miranda rights D) Ballistics rule
Daubert ruiling, is a rule of evidence regarding the admissibility of expert witnesses' testimony. The expert in your scenario is not a witness.
Miranda Rights, is the right that you have to remain silent. Anything you say can and will be used against you in a court of law. You have the right to an attorney.
Ballistics rule, has to do with the calculations of the optimum rate of twist for a given bullet.
A. Frye standard is the general acceptance test is a test to determine the admissibility of scientific evidence.
Update: B. Is the answer!
I believe it is A) Frye standard
Hope this helps....
Which of the following is a function of nucleic acids?
A
Nucleic acid provides energy.
B
Nucleic acid stores fatty acids.
C
Nucleic acid stores and transmits genetic information.
D
Nucleic acid manufactures simple sugars,
Answer: Option c
Explanation:
Nucleic acids are the center for storing all the information. The deoxyribo nucleic acid is the center for storing all the genetic information.
The genetic material is inherited from the parents to the children. The characters are transferred from one generation to another.
The characters such as hair color, hair type, eye color are some of the genetic information that is carried from one generation to another via nucleic acids.
50 POINTS FOR DOING THIS!!!!!!!
What inferences can you make regarding the ph of a particular part of the digestive system and the type and relative size of the carbon-based molecules that are broken down there?
AND
the stomach is a relatively small muscular organ compared to the small intestine that can be as long as six meters yet food tends to be held in the stomach and released in only small amounts into the small intestine. What does that suggest to you about where nutrients are absorbed? How do the products of enzyme action described in the table support your thinking?
1.The pH of a particular part of the digestive system can give an approximate value about the acid content present in it. Which can help to determine the solubility of bacterias present in it. It also helps in protein denaturation process also. It helps to break down the carbon-based molecules and releases the energy for performing various activities.
2.im not sure
The pH of different parts of the digestive system indicates the type of molecules broken down in those areas. The stomach's acidity aids in protein breakdown, while the small intestine's basic environment facilitates digestion of various nutrients. The longer food stays in the stomach, with gradual release into the small intestine, shows the stomach's role in initial digestion, while the small intestine is where most nutrient absorption occurs.
Explanation:The pH of a particular part of the digestive system can give inferences about the type and relative size of the carbon-based molecules that are broken down there. For example, the stomach has a low pH, indicating it's acidic. This acidity is crucial for the denaturation of proteins and activation of the enzyme pepsin, which breaks down proteins into smaller peptides. In contrast, the small intestine has a higher pH which allows for the digestion of fats, sugars and the remaining proteins.
The fact that food stays longer in the stomach and is only gradually released into the small intestine suggests that the stomach plays a significant role in the initial breakdown of food, but absorption of nutrients primarily occurs in the small intestine. The enzymes present in the small intestine, such as amylase, lipase, and peptidases, facilitate the breakdown of complex molecules into simpler ones for easy absorption.
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During one year, eight turtles are born into a population. Ten turtles immigrate into the population, but two emigrate to find mates. If the overall population growth is nine turtles, what was the death rate of turtles during the year? Use this formula: population growth = (birth rate + immigration) – (death rate + emigration)
A)7
B)9
C)11
D)29
Answer:
A)7
Explanation:
Birth rate = 8 turtles / year
Immigration = 10 turtles / year
Emigration = 2 turtles
Population growth = 9 turtles.
Lets suppose that the death rate for the given population is X.
By placing all the values in formula:
population growth = (birth rate + immigration) – (death rate + emigration)
9 = (8 + 10) - (X + 2)
9= 18 -( X+ 2)
or X= 7.
According to the frontier ethic, saving endangered animal species may be considered foolish because _____.
A. animals cannot be controlled
B. animals serve no human purpose
C. extinctions occur as a natural process
D. new species will take their place
From the perspective of the frontier ethic, saving endangered animal species may be seen as unwise because extinctions are seen as a natural process that should not be impacted by human actions.
Explanation:The frontier ethic is a philosophy that encourages use and progress, often at the expense of conservation. It reflects the attitude of pioneers who considered the natural world as a resource to be used for human benefit. Given this outlook, the answer to your question - According to the frontier ethic, saving endangered animal species may be considered foolish because C. extinctions occur as a natural process. This perspective sees extinction as an inevitable part of nature's course which should not be interfered with by human effort to save animals.
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Plant cells have several structures that are not found in animal cells - chloroplasts, cell walls, and central vacuous. Explain why each of these is useful for plant cells, but not needed or even a disadvantage for animal cells.
Final answer:
Plant cells contain chloroplasts for photosynthesis, cell walls for structural support, and central vacuoles for maintaining turgor pressure, all of which are necessary for plant life but not suited to the needs or advantageous for animal cells.
Explanation:
Unique Plant Cell Structures and Their Functions -
Plant cells have several structures that are not found in animal cells, including chloroplasts, cell walls, and central vacuoles. Each of these structures serves a specific purpose that is crucial for a plant's survival and growth but is unnecessary or even disadvantageous for animal cells.
Chloroplasts are essential for photosynthesis, the process by which plants convert light energy into chemical energy. This capability is not required by animal cells, as animals obtain energy from consuming plants or other animals, not from direct sunlight.
The cell wall, primarily composed of cellulose, provides structural support and shape to plant cells, allowing plants to stand upright and grow tall. For animal cells, a rigid outer layer would restrict mobility, making the cell wall unnecessary and a hinderance.
Central vacuoles hold water and other substances, maintaining turgor pressure within the plant cells. This pressure is crucial for plant rigidity and growth. In contrast, animal cells regulate their volume and shape through different means, making such large vacuoles unnecessary.
Most of the nitrogen in the atmosphere is found in what form?
as ammonium
as nitrite
as nitrogen gas
as nitrate
Answer:
as nitrogen gas :)
Explanation:
Which procedures were followed in this lab to decrease experimental error? Check all that apply. using only two types of seeds, both from the same source having one student count every sprout in every quadrat using adjacent plots of land for both groups increasing the sample size by combining data from multiple groups repeating the experiment indoors under growth lights measuring plant height the same way and at the same time for both groups
Answer: A C D F
Explanation:
The procedures followed in this lab to decrease experimental error were using two types of seeds from the same source, having one student count every sprout, using adjacent plots of land, increasing the sample size, repeating the experiment indoors, and measuring plant height consistently.
Explanation:The procedures followed in this lab to decrease experimental error are:
Using only two types of seeds, both from the same source.Having one student count every sprout in every quadrat.Using adjacent plots of land for both groups.Increasing the sample size by combining data from multiple groups.Repeating the experiment indoors under growth lights.Measuring plant height the same way and at the same time for both groups.Learn more about procedures to decrease experimental error in a lab here:https://brainly.com/question/25872697
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In the reaction ______ H2 + N2 ----> 2 NH3, what coefficient should be placed in front of H2 to balance the reaction?
a. 1
b. 2
c. 3
d. no coefficient is needed.
2NH3 is equivalent to N2 + H6 since the 2 at the beginning gets distributed to both atoms. Knowing this you can rewite the equation as
H2 + N2 = H6 + N2
The N2 can cancel out leaving
H2 = H6
You now have to ask ‘2 times what equals 6?’ The answer is obviously 3 at this point.
Answer: C. 3
To balance the reaction H2 + N2 → 2 NH3, a coefficient of 3 should be placed in front of H2.
Explanation:In the reaction H2 + N2 → 2 NH3, to balance the reaction, you need to equalize the number of atoms of each element on both sides. There are two nitrogen (N) atoms on the right side, so we need to place a 3 in front of N2 to balance the equation. This means there will be six hydrogen (H) atoms on the right side, so we need to place a 3 in front of H2 to have six hydrogen atoms on both sides. Therefore, the coefficient that should be placed in front of H2 to balance the reaction is 3.
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The coefficient to place in front of H2 to balance this reaction is 3. This ensures there are equal numbers of nitrogen and hydrogen atoms on both sides of the equation.
Explanation:The question pertains to the balancing of a chemical equation, specifically the Haber process, which is the creation of ammonia (NH3) from hydrogen (H2) and nitrogen (N2). According to the chemical equation, we can see that there are two nitrogen atoms and six hydrogen atoms on the right side (2 NH3), while on the left, we've only got two hydrogen atoms (H2) and one nitrogen atom (N2). So to balance it, we need three molecules of hydrogen (giving us 6 hydrogen atoms) per one molecule of nitrogen. Therefore, to balance the reaction, the correct coefficient to place in front of H2 is 3.
So the correctly balanced reaction will be 3 H2 + N2 ----> 2 NH3.
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sodium has an atomic number of 11 and has a net charge of 0. When sodium combines with chlorine, it has a net charge of +1. Why? A) sodium loses a negative electron when forming chemical bonds. b) sodium gains a + proton when forming chemical bonds. c) sodium loses a + proton when forming chemical bonds. eliminate d) sodium shares a negative electron with chlorine.
A) Sodium loses a negative electron when forming chemical bonds.
Question 10
Which statement best describes the relationship between the cytoplasm and the nucleus?
Question 10 options:
The nucleus is a jelly-like fluid, and it mixes with the cytoplasm, that is a fluid much like the nucleus.
The cytoplasm is a jelly-like fluid that fills the nucleus.
The cytoplasm is an organelle that is usually found next to the nucleus.
The nucleus is an organelle that is surrounded by the cytoplasm, a jelly-like fluid.
your answer is d
hope this helps :)
Hello People! your answer is c
Which unmanned craft is used to collect data about bodies in space?a) roverb) satellitec) space probed) space station
Answer:
space probe :D
Explanation:
what causes differences in air pressure
Air moves from higher pressure to lower pressure which causes the wind to flow in a particular direction.
What is air pressure?Air density variations, which are connected to temperature, are what is causing this shift in pressure which creates a particular difference in air pressure gradient.
Because warm air's gas molecules move faster and further apart than those in cooler air, warm air is less dense than cooler air.
Air density has a direct relationship to pressure, and changes in temperature, humidity, and rising or sinking air are the main factors influencing air density.
Therefore air density is related to pressure so it moves from higher pressure to lower pressure.
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Changes in air density cause differences in air pressure.
Cold air is denser than warm air because gas molecules are at lower velocities and are compact to each other in cold air. Air flowing from high-pressure to low-pressure zone forms winds. Air density increases when the temperature is constant and pressure increases.
Similarly, if the temperature increases and pressure is constant the density will decrease. A 3% increase in temperature can decrease air density by 1%.
Thus, change in temperature and pressure can cause changes in air density which can cause differences in air pressure.
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Which process would enable a white blood cell to ingest a bacterium?
Phagocytosis would enable a white blood cell to ingest a bacterium
Phagocytosis is a special form of endocytosis by which cells ingest solid substances including microbial pathogens to produce an internal compartment known as a phagosome. Cells that undergo this process are called phagocytes. The white bold cells of the immune system protect the body against invasion by pathogens such as bacteria. They perform this function by phagocytosis.
Any change in allele frequencies in a gene pool is called ____ a. Natural selection b. macroevolution c. Microevolution d. Mutation e. Artificial selection
Changes within a gene pool occurring from generation to generation is called microevolution. Allele frequencies in a population may change due to gene flow, genetic drift, natural selection and mutation. These are referred to as the four fundamental forces of evolution.
C.
Final answer:
Microevolution is the change in allele frequencies within a gene pool over time, often evidenced by observable shifts in traits within a population. The correct option is C. Microevolution.
Explanation:
Any change in allele frequencies in a gene pool is called microevolution. Microevolution refers to changes in the gene pool of a population over time due to mechanisms like mutation, gene flow, genetic drift, and natural selection. Mutation and gene flow are evolutionary forces that can introduce new genetic variation into a population, while natural selection and genetic drift can alter allele frequencies by changing the relative survival and reproductive success of individuals with different genotypes.
Bella is writing a research paper on ocean currents. Which two sources should she consult?
1 an article published by a university or a government agency
2 an article from a website containing advertisements
3 an article published in 2015 and updated a week ago
4 an article appearing in the blog post of a teenage surfer
5 an article that does not state the author’s name and details
Bella is writing a research paper on ocean currents. The two sources she should consult will be;
1. an article published by a university or a government agency
3. an article published in 2015 and updated a week ago
Because while writing research papers we should consult authentic and latest information and resources.
Answer: 1. An article published by a university or a government agency.
3. An article published in 2015 and updated a week ago.
Explanation:
A research paper is the outcome of the research process done by a person having knowledge of the mentioned topic. It is a written document written by the author by conducting thorough observations and performing experiments.
Following are the sources she consults:
1. An article published by a university or a government agency.:
It is a reliable source of information as usually the research paper published by a government agency and university is generated by the thorough research work and examination. The information present in such articles will be authentic, useful and informative.
3. An article published in 2015 and updated a week ago. :
An article which is recently published can be considered reliable. This is because of the fact that the new information will be updated in it making the information more advance.
A melting glacier creates a river that separates a population of squirrels. resources, predators, and other ____________ vary slightly between the two sides of the river.
Condensation is an important phase change that commonly occurs in the atmosphere. suppose a 1-m3 sample of air at sea-level pressure, containing 4 g of water vapor, was cooled such that all 4 g condensed. how many calories of heat would be released by this process?(carbone 48)carbone, greg. exercises for weather & climate, 9th edition. pearson, 20150626. vitalbook file.the citation provided is a guideline. please check each citation for accuracy before use.
The correct answer is 2400 calories.
The condensation is a process of water’s state change. It is the change from water vapor to liquid state. The latent heat of condensation will release about 600 calories per gram of liquid water. So, it means that for 4 grams of liquid, 2400 calories of heat is necessary.
The calories of heat that would be released by this process is 2400 Calories or approximately 2.4 Kcal.
What do you mean by Condensation?
Condensation may be defined as the change of state of matter from the gas (vapor) state into the liquid state.
The latent heat of condensation is defined as the heat released when one mole (gram) of the substance condenses.
The latent heat of condensation when 1 g of substance condenses = 600 cal.
So, the latent heat of condensation when 4 g of substance condenses = 4×600 = 2400 cal or ≅ 2.4 Kcal.
Therefore, the calories of heat that would be released by this process is 2400 Calories or approximately 2.4 Kcal.
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1. What allows things to enter and leave a cell and is the gate keeper?
Answer: The cell membrane; which is "selectively permeable" .
____________________________________________________
Why 2 elements possess similar chemical properties
Elements in the same group in the periodic table have similar chemical properties. This is because their atoms have the same number of electrons in the highest occupied energy level. Group 1 elements are reactive metals called the alkali metals. Group 0 elements are unreactive non-metals called the noble gases.
Interpret the physician's note below by rewriting the medical terms and the abbreviations in common English language. Mrs. Smith is admitted to the hospital with a dx of pancreatitis, dysphagia and gastralgia. Sx include NVD, sore throat and severe HA. Orders: abd MRI, CBC, NPO except for cl liq, VS q2h and CBR. IV fluids of N/S 1000cc q8h.
The doctor's notes are translated from medical terminology to common English. Mrs. Smith is diagnosed with pancreas inflammation, swallowing difficulties, and stomach pain, with symptoms including nausea, sore throat, and headache. The doctor has ordered an abdominal MRI, blood count, restricts food and drink to clear liquids only, recommends bed rest and regular checks of vital signs.
Explanation:Mrs. Smith has been admitted to the hospital diagnosed with inflammation of the pancreas (pancreatitis), difficulty swallowing (dysphagia), and stomach pain (gastralgia). Symptoms include nausea, vomiting, diarrhoea (NVD), a sore throat, and severe headache (HA). The physician has ordered an abdominal magnetic resonance imaging (MRI), a complete blood count (CBC), and no food or drink except for clear liquids (NPO except for cl liq). Vital signs have to be checked every 2 hours (VS q2h) and bedrest has been recommended (CBR). The patient will also receive intravenous (IV) fluids of normal saline 1000cc every 8 hours (N/S 1000cc q8h).
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The physician has diagnosed Mrs. Smith with pancreatitis, dysphagia, and gastralgia. She is experiencing symptoms such as nausea, vomiting, diarrhea, sore throat, and severe headache. The physician has ordered various tests and treatments to monitor her condition.
Explanation:The physician's note refers to Mrs. Smith's conditions as pancreatitis, dysphagia, and gastralgia. Her symptoms include NVD (nausea, vomiting, and diarrhea), sore throat, and severe headache. The physician has ordered an abdominal MRI, CBC (complete blood count), NPO (nothing by mouth) except clear liquids, vital signs every 2 hours, and constant bed rest. Mrs. Smith is also receiving IV fluids of normal saline (N/S) at a rate of 1000cc every 8 hours.
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What was the purpose of Mendel's experiments with dihybrid crosses?
A. To determine if traits are controlled by more than one gene
B. To determine if one trait could affect the inheritance of another trait
C. To determine if it is possible to produce an F2 generation
D. To determine if the transforming factor was DNA or protein
Answer:
B
Explanation:
I did it on A-pex and i did A because it's what the 1st one said and its wrong It was actually
B- To determine if one trait could affect the inheritance of another trait.
Explain how membrane receptors transmit messages across the cell membrane
the membrane receptors are activated when a certain chemical attaches itself to the receptor.
Final answer:
Membrane receptors facilitate cell communication by binding to signaling molecules, triggering structural changes that lead to ion channel activation or internal signaling cascades, which can modify gene expression and cellular functions.
Explanation:
How Membrane Receptors Transmit Messages Across the Cell Membrane
Membrane receptors are specialized proteins located within the cell membrane that are responsible for transmitting messages to other cells. When a signaling molecule, or ligand, binds to a receptor on the cell's exterior, it triggers a change in the receptor's molecular structure. This alteration can either open an ion channel or activate internal signaling pathways via molecular switches. In the case of ion channels, they allow specific ions like Na+ to flow into or out of the cell, leading to an action potential. Other receptors may activate G-proteins on the cytoplasmic side, which then set off a cascade of reactions within the cell. These reactions may involve changing the permeability of the cell to certain ions or altering gene expression by affecting the transcription of DNA in the nucleus. Ultimately, these processes change the cell's activities and functions in response to the initial signal.
Which of the following is a function of chloroplasts?
A. Chloroplasts provide a vesicle for materials to move around in the cell.
B. Chloroplasts absorb sunlight to enable a plant to make food.
C. Chloroplasts oxidize sugar to produce chemical energy in the form of ATP.
D. Chloroplasts provide a site for amino acids to be assembled into proteins.
Answer:
B Makes food during photosynthesis
Explanation:
The title of a graph should be placed:
at the top
at the bottom
along the axes
Answer:at the top
Explanation:
Drug abuse is best defined as __________.
A.
the consumption of legal drugs
B.
the consumption of illegal drugs
C.
the nonmedical or improper use of a drug that can interfere with a healthy life
D.
using drugs on an occasional basis until mood is altered
Hello!
The answer should be the third option C.
Drug abuse is best defined as; "the nonmedical or improper use of a drug that can interfere with a healthy life".
Hope this helps!
Thank you for posting your question at here on Brainly.
Have a great day!
-Charlie
I believe the answer is C as that is the definition. Even if it was a subscription, the constant use of it without stopping can interfeer with a haelthy life.
hope this helps :)
Which interaction involves only one of Earth’s spheres?
Plant roots take in water from the soil.
Plants take in carbon dioxide from the air.
During photosynthesis, plants make food and release oxygen into the air.
Energy stored in plants is transferred to humans and animals that eat them.
Answer: Energy stored in plants is transferred to humans and animals that eat them.
Biosphere is a sphere on earth where living organism forms a biotic community. It is the sum of all the ecosystems. Various life processes occurring in a biosphere are dependent on other spheres on earth that are lithosphere (rocks), hydrosphere (water) and atmosphere (air). In biosphere living beings interact and fulfill their energy requirements.
Energy stored in plants is transferred to humans and animals that eat them here only biosphere is involved. As, energy produced by plants which is a living component of the ecosystem through photosynthesis is transferred to other living components of the ecosystem that are humans and animals. Therefore, only one sphere is involved in this process.
Answer:
The correct option is d. Energy stored in plants is transferred to humans and animals that eat them
Explanation:
Hello!
We will answer that!
We can divide the ecosystem into different parts: hydrosphere, it is the part that contains water; the atmosphere is the part that is the air; the lithosphere is the part that has the rocks; The biosphere is the earth and where the living beings are.
In the ecosystem, all parts coexist, help each other and connect.
Let's analyze all the options:
Plant roots take in water from the soil: in this option two parts act, the biosphere and the hydrosphere
Plants take in carbon dioxide from the air: in this option two parts act, the biosphere and the atmosphere
During photosynthesis, plants make food and release oxygen into the air: in this option two parts act, the biosphere and the atmosphere
Energy stored in plants is transferred to humans and animals that eat them: in this option they act only a part that is the biosphere
After the analysis, we conclude that the correct option is d. Energy stored in plants is transferred to humans and animals that eat them
What is the Electronegativity Value for neon?
Which of the following is not characteristic of an animal cell? A. It has a nucleus surrounded by a nuclear envelope B. It contains ribosomes C. It converts sunlight into food & energy using chloroplasts D. It has a cell membrane
I would say C. It converts sunlight into food & energy using chloroplasts.
Since that occurs in plat cells.
Hope it works!
The answer option which is not a characteristic of an animal cell is: C. It converts sunlight into food & energy using chloroplasts.
An animal cell can be defined as the fundamental (basic) functional, structural and smallest unit of life of an animal such as a cat, sheep, lion, dog, etc.
Basically, the cells found in the tissue and organs of animal are referred to as eukaryotic cells because they have membrane-bound organelles enveloped by a plasma membrane and suspended in the cytoplasm.
Some of the characteristics of an animal cell include the following:
It has a nucleus surrounded by a plasma membrane or nuclear envelope.An animal cell contains ribosomes.An animal cell has a cell membrane.However, a plant cell converts sunlight into food and energy through photosynthesis by using chloroplasts.
In conclusion, an animal cell doesn't convert sunlight into food and energy or experience photosynthesis.
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What was Anton van Leeuwenhoek's contribution in the development of cell theory? A. He built the first compound microscope. B. He was the first to observe live cells in a sample of pond water. C. He concluded that cells exist in liquids. D. He stated that all living things are made of cells.
Anton van Leeuwenhoek is commonly known as the Father of Microbiology.
He was the first man to witness a live cell under a microscope or we can say, he discovered protozoa (the single-celled organism) and he named them animalcules.
So, option B is the correct answer.
B. He was the first to observe live cells in a sample of pond water.
Anton van Leeuwenhoek's contribution in the development of cell theory is he was the first to observe live cells in a sample of pond water. (Option B)
What was Anton van Leeuwenhoek's contribution?Anton van Leeuwenhoek made significant contributions to the development of cell theory through his pioneering work in microscopy.
He is often referred to as the "Father of Microbiology" and played a crucial role in the advancement of cell biology.
Leeuwenhoek constructed single-lens microscopes of exceptional quality and was able to achieve magnifications of up to 300 times.
Using these microscopes, he made numerous observations of various samples, including;
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