Answer:
Validity refers to how accurately a method measures what it is intended to measure. If research has high validity, that means it produces results that correspond to real properties, characteristics, and variations in the physical or social world. High reliability is one indicator that a measurement is valid.
Explanation:
Susan had an emergency Cesarean with her first child due to concern about the fetal heart rate. She is now pregnant with her second child and would like to try to have this baby vaginally. What kind of birth should Susan tell her care provider she is interested in? please answer this quick
Answer:
it depends on how much of a risk having the baby naturally would be. Having another C-section is the safest way but the can do either.
Scientific laws explain how and why something occurs on a scientific level true or false
Your question has been heard loud and clear.
Not all scientific laws explain how and why something occurs on a scientific level , only scientific theories explain how and why something occurs on a scientifc level.
So , it is false.
Thank you
what is bio living earth about
Answer:
The course integrates earth science into standard biology concepts from a phenomenon-based approach.
Explanation:
what is villi define it
Explanation:
villi are small finger like structures in the small intestine
Answer:
hope it helps you and plz mark me brilliantest
Explanation:
Intestinal villi (singular: villus) are small, finger-like projections that extend into the lumen of the small intestine. ... Villi increase the internal surface area of the intestinal walls making available a greater surface area for absorption.
What makes up genes? Explain in 1 paragraph please
Answer: Genes are made up of DNA
Explanation: Genes are made up of DNA . to be more precise each gene is made out of possibly 25 000 dna to 2 million dna.
A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins. In humans, genes vary in size from a few hundred DNA bases to more than 2 million bases. The Human Genome Project estimated that humans have between 20,000 and 25,000 genes.
Every person has two copies of each gene, one inherited from each parent. Most genes are the same in all people, but a small number of genes (less than 1 percent of the total) are slightly different between people. Alleles are forms of the same gene with small differences in their sequence of DNA bases. These small differences contribute to each person’s unique physical features.
which two words are the closet antonyms
A. melancholy and forlorn
B. calculate and isolate
C.vital and non-essential
D.disorder and injury
Answer:
c. vital and non-essential
antonyms are opposites
When you break down maple syrup into smaller units, these units are called ________ * a. nucleotides b. monosaccharides c. RNA d. triglycerides
Answer:
I'm pretty sure the answer is b. Monosaccharides
Explanation:
Monosaccharides are simple sugars that contain fructose and glucose, which I believe maple syrup has.
How are cells interdependent on each other?
Answer:
Cells interdependent to form organization in multicellular organism to make tissue, organ, organ system and body.
Explanation:
Along the evolution process, living beings are getting particularly advanced in their complexity. The essential creature to show up was a unicellular form.
In multicellular organisms, cells came that together to make tissues, which collected together to shape organs, further into the organ system, at this level cell depends on one another as the complexity increases with organization level.
A man walks 20km in 4 hours. Find his speed.
Answer:
Distanced covered = 20km
time taken = 4 hrs
speed = S/t
=20 /4 = 5 km/hrs
#FreeMelvin
Answer: 5 km per hour
Explanation: If you set up a unit rate, you can simplify to find the answer.
20 km ?
------------ = ---------------
4 hr 1 hr
Use the crisscross method, so 20 times 1 is 20, and 20 divided by 4 is 5, so the answer is 5 km per one hour.
How has modern humans
ecological footprint caused a Tragedy of the Commons?
Answer and Explanation:
The ecological footprint is an indicator of sustainability at an international level that integrates all the human impacts over the environment, considering the necessary resources and the generated residues to maintain the modern consumption model. It refers to the productive ecological surface needed to produce resources to consume by one person and to absorb the residues that are produced.
By constant contamination and indiscriminately use of natural resources the impact generated by human in the earth is unmeasurable.
The tragedy of the commons refers to how some people, acting by their own needs or interests, may exceed the use of natural resources, affecting their population and, therefore, other users. These individuals over explode resources thinking only in the present, but not in the future.
The ecological footprint as an indicator makes visible the unsustainable lifestyle of human beings, especially those of the first world. If this lifestyle would project to the rest of the world equally, natural resources would completely disappear. More developed countries are over contaminating and over exploding natural resources, affecting other countries of the third world, and even themselves.
A refrigerator thermometer is read ten times and registers degrees Celsius as:
39.1, 39.4, 39.1, 39.2, 39.1, 39.2, 39.1, 39.1, 39.4, and 39.1. However, the real
temperature inside the refrigerator is 37 degrees C. Is this an example of
precision, accurate, neither, both or neither, Make a selection and explain.
Answer:
Precise, but not accurate
Explanation:
First, let’s define accuracy and precision.
Accuracy: how close you are to the actual value
Precision: how close the measurements are to each other.
Let’s examine the data given:
39.1, 39.4, 39.1, 39.2, 39.1, 39.2, 39.1, 39.1, 39.4, 39.1
Each number is very close to 39, within 0.1 to 0.4.
The actual temperature of the refrigerator is 37 degrees. Each measurement is about 2 away from 37.
Since the measurements are close to each other, but far from the true value, we can say this is precise but not accurate.
What is the main purpose of glucose
Glucose is a carbohydrate. Carbohydrates are quick energy so, the purpose of glucose is quick energy.
Conlan wants to answer the question, “Does phosphorus affect tomato fruit production?” Which statement represents a hypothesis that he can test to answer his question?
Provided question lacks the group of choices to answer the question, however, the correct group of choices are given below:
A)If phosphorus affects tomato fruit production, then tomatoes that are fertilized with phosphorus will have larger leaves.
B)If phosphorus affects tomato fruit production, then phosphorus should be added to the soil during planting.
C)If phosphorus affects tomato fruit production, then adding phosphorus to the soil will make tomatoes taste better.
D)If phosphorus affects tomato fruit production, then plants that are fertilized with phosphorus will produce more tomatoes.
Answer:
The correct answer would be option D) )If phosphorus affects tomato fruit production, then plants that are fertilized with phosphorus will produce more tomatoes.
Explanation:
To answer the question of Conlan, “Does phosphorus affect tomato fruit production?” he should form a hypothesis that can test the amount of the phosphorus and amount of the production of tomato fruits.
Productivity of fruits dealt with the producing tomato fruit instead of their taste, or size of leaves. So the statement D represent the hypothesis for his question due to the fact that phosphorus can increase the capacity of tomato fruit production.
Thus, the correct answer is option D.
Describe five precautions for accepting checks in the healthcare facility
Answer:
The correct answer would be :
1. Inspect the check carefully for the correct date, amount and signature
2. Do not accept checks with corrections on it
3. Ask for an ID for comparison with the signature
4. Do not accept out-of-town checks
5. Do not accept third party checks
Explanation:
Check is an order or draft issue by the account holder to pay a specific sum of money on demand to a specific entity or person. In healthcare facility one should maintain precautions before accepting check for a healthcare service.
Some of important precaution are as follows:
1. One should Inspect the check very carefully for amount, the correct date, and signature of the payee
2. checks with corrections should not be accepting
3. Comparison the signature with ID
4. Out-of-town checks should not be accepting
5. Third party checks should not be accepting
What were some possible problems with the theory of spontaneous generation that led Louis Pasteur
to challenge its validity?
Answer:
aFrancesco Redi disproved spontaneous generation for large organisms by showing that maggots arose from meat only when flies laid eggs in the meat.
sientific method hypothesis
The general trend that is shown on the graph is that average surface temperature on Earth
o has fallen by 0.4°C since 1880.
o has risen by nearly 1°C since 1880.
o dropped a fraction of a degree in 2000.
o rose sharply betuneen the tears 1900 and 1920
Answer:
B
Explanation:
Answer: The answer is B. Has risen by nearly 1 degree C since 1880
Explanation: Edge2021
Dispose of all waste as instructed by your teacher. There should be
special containers provided in order to get rid of the following types
of waste:
a. Matches, litmus paper, wooden splints, toothpicks, etc.
b. Broken glass
C. Rags, paper towels, or other absorbent materials used
in the cleanup of flammable solids or liquids.
d. Hazardous/toxic solids or liquids as identified by your teacher.
Answer:
all materials are recycling, reduce,reuse
Which of these best fits the box labeled A?
A. Ancient bacteria
B. Primitive plants
C. Ancient organisms
D. Reproducing molecules
The term that best fits the box labeled is reproducing molecules (Option D). It is a prerequisite for life.
What are organic reproducing molecules?Organic reproducing molecules are specific biomolecules that are capable of self-replicating on their own.
The emergence of organic reproducing molecules such as nucleic acids (either DNA or RNA) is a prerequisite for life.
Another prerequisite for life is the emergence of macromolecules having catalytic activities (e.g., ribozymes or enzymes).
Learn more about reproducing molecules here:
https://brainly.com/question/1619735
Answer:D
Explanation:
cause we like dat
is there only one way to conduct a scientific experiment? Why or why not
Answer:
no , there are four different ways in experiment.
1. chemical displacement
2. chemical reaction
3. chemical double displacement
4. chemical double reaction
Explanation:
hope it helps if yes then follow me and mark as brainlist
Are there striations in the skeletal muscle tissue
Answer:
Skeletal muscles are long and cylindrical in appearance; when viewed under a microscope, skeletal muscle tissue has a striped or striated appearance. The striations are caused by the regular arrangement of contractile proteins (actin and myosin). ... Skeletal muscle also has multiple nuclei present in a single cell.
Explanation: Hope this helps. :)
Someone diagnosed with meningitis has inflamed membranes that cover and protect the brain and spinal cord. Meningitis is a result of pathogenic gram-negative bacteria that cause extreme infections when their bacterial cell wall dies and lipopolysaccharide (a lipid and polysaccharide) is released. The lipopolysaccharide is an example of a/an
Answer: ENDOTOXIN
Explanation: Meningitis is a nervous system disorder that occurs when there is an infection and inflammation of the meninges,these meninges are the membranes that cover the brain and the spinal cord,they are the pia mater, dura mater,and the arachnoid mater.
This infection and inflammation of the meninges is causes by inversion of microorganism, bacteria precisely,when these bacteria that are gram negative invade the meninges,the cell wall of the bacteria dies off exposing the cellular contents, this exposure introduces a toxin known as LIPOPOLYSACCHARIDE directly in to the meninges which disrupts the normal functioning of the meninges, infection further sets in and inflammation is triggered as well.
You are a molecule of nitrogen. Choose a starting point in the nitrogen cycle and describe the process you would go through to move through the entire cycle
I am converted by bacteria into ammonia,
from there some things can absorb me, I am further converted by bacteria intonitrates and nitrites, plants assimilate left are further converted into nitrogen gas that is released into the atmosphere where I am breathed in.
hope this helped
please give brainlist
Fixation is the first step in the process of making nitrogen usable by plants. Here bacteria change nitrogen into ammonium. Nitrification - This is the process by which ammonium gets changed into nitrates by bacteria. Nitrates are what the plants can then absorb.
6. Los seres humanos producen desechos celulares que salen del cuerpo gracias a diferentes procesos de los cuales están a cargo varios sistemas, selecciona uno que NO haga parte de este proceso: A. Sistema urinario B. Sistema respiratorio. C. Piel. D. Sistema reproductor.
Answer:
D. Sistema reproductor.
Explanation:
La excreción es el proceso de eliminar los desechos y el exceso de agua del cuerpo. Estos desechos pueden ser dañinos y pueden causar daños.
Los órganos responsables de la excreción son el riñón, los pulmones, la piel, el hígado y el intestino grueso.
La piel elimina el sudor, el exceso de agua y las sales a través de las glándulas sudoríparas.
El sistema urinario está formado por riñón, uréteres, vejiga y uretra. El riñón elimina el exceso de agua y sal al producir orina que luego se transporta con la ayuda de los uréteres, la vejiga y la uretra.
En el sistema respiratorio, los pulmones excretan sustancias gaseosas, como dióxido de carbono y agua.
what is vector and examples of them
Your question has been heard loud and clear.
A vector is basically a quantity that has both magnitude and direction.
However , scalars only have magnitude , but vectors possess both magnitude and direction.
Examples of vectors are : Velocity , displacement , acceleration.
Thank you
PLEASE HELP!!!!! How are a hypothesis, theory, and scientific law related?
Answer:
They are all steps taken to perform the scientific method.
Explanation:
Hypothesis is an educated guess made from observations, a theory is a hypothesis test with a significant amount of data, and scientific law is a theory that is consistent with generations of data. They are all different. However, they are all apart of a process called the scientific method.
What are the three most important steps for writing a testable question?
Answer:
make two lists pick one item from each list that interests you most.choose an appropriate testable question format and fill in the blanks with the appropriate variables.
Answer:
A testable question is one that can be
answered by designing and conducting
an experiment.
Son músculos antagonistas (unos realizan flexión y otros extensión) los siguientes: * 5 puntos Trapecio- deltoides Bíceps- tríceps Serratos- rectos Frontal- orbicular
Answer:
Bíceps- tríceps
Explanation:
Los músculos trabajan para generar movimiento mediante la contracción de células musculares. El bíceps y el tríceps son músculos antagonistas presentes en el brazo. Cuando el brazo se acorta, el bíceps funciona como agonista (es decir, se contrae) y hace que los tendones que tiran de los huesos del antebrazo puedan doblarlo. Durante este movimento, el triceps funciona como antagonista, encontrándose en estado de relajamiento. Por otra parte, durante el estiramiento del brazo, las funciones de estos músculos se invierten, con lo cual el tríceps (agonista) se contrae y el bíceps (antagonista) se relaja.
What role best describes the bee's role of gathering pollen?
Answer:
Its niche
Explanation:
Consider an experiment in which starch is dissolved in a liter of water. Some of the solution is placed into a securely tied dialysis bag. The dialysis bag is placed into a beaker containing distilled water and iodine for 30 minutes. What are the correct answers for the questions below? (Note: Iodine reacts with starch to create a black/purple color.) What would happen to the color of the solution in the bag? a. The solution in the bag would turn purple as the iodine reacts with the starch. b. The solution in the bag would grow lighter as the starch leaves the bag and enters distilled water and iodine.
Answer:
a. The solution in the bag would turn purple as the iodine reacts with the starch.
Explanation:
According to this question, a solution containing starch is placed into a securely tied dialysis bag. The dialysis bag is then placed into a breaker containing distilled water and iodine for 30mins.
The starch is a solute substance, which when added to the solution in the dialysis bag makes the solution in the bag HYPERTONIC in comparison to the hypotonic (low solute concentration) distilled water+iodine in the beaker. Based on this concentration gradient (difference in concentration), osmotic flow will occur across the dialysis bag (semi-permeable membrane).
Note that, osmosis is the movement of water from a region of low solute concentration to a region of high solute concentration across a membrane. Hence, water+iodine from the breaker will move into the solution in the dialysis bag.
Because the solution entering the dialysis bag contain iodine, it will react with the starch content of the dialysis bag and form a dark purple coloration inside the dialysis bag.