Answers
Answer:
Negatively charged ion
Explanation:
Negatively charged ions are called anions and they have more electron than than protons and more protons than nuetrons.
When an atom has fewer neutrons than protons and more electrons than protons, such an atom is said to be an anion. Hence, it is negative ion.
Depending on the number of proton and electron, there are 3 types of atoms:
Neutral atoms in which the proton and electron numbers are balancedCation in which the proton number is more than the electron numberAnion in which the electron number is more than the proton numberIn this case, the atom has more electrons than protons and, therefore, is an anion. The excessive electron makes such atom to be negatively charge.
Therefore, an atom that has fewer neutrons than protons and more electrons than protons is a negative ion.
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Related Questions
A woman who has blood type A positive has a daughter who is type O positive and a son who is type B negative. Rh positive is a trait that shows simple dominance over Rh negative and is designated by the alleles R and r, respectively. A third gene for the MN blood group has codominant alleles M and N. If both children are of blood type M, list all of the possible parental phenotypes
Answers
Answer:type A
Explanation:
Possible parental phenotypes could be mother with blood type A Rh positive and MN or MM while the father will have blood type B Rh negative and MN or MM type.
What is blood typing in humans?Blood typing is a method to tell what type of blood group or blood an individual has. Blood typing is done so a person can safely donate hos or her blood or receive a blood transfusion from another person. It is also done to see if a person have a substance called as the Rh factor on the surface of the red blood cells.
Blood typing in humans is an example of codominance and multiple allelism. Blood group A and B are codominant and O is recessive allele. Rh negative is recessive over Rh positive blood group. A third gene for the MN blood group is codominant, in which M and N are codominant.
In the given question, both the children are of blood type M. In this case, M and N are codominant over each. Therefore, the possible parental combinations can be MN × MN or MM × MN.
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Two solutions are separated by a semipermeable membrane that is permeable to potassium but not chloride or sodium ions. Solution A on the left contains a solution that is 100 mM potassium, while Solution B on the right has a concentration of potassium chloride of 1 mM. There is an electrode in both solutions, and a comparative assessment of voltages between the two compartments is being made. The investigator doing the study decides to call side B ground potential (or, in other words, defines it as 0).
A. What is the value for the chloride equilibrium potential in this condition?
B. In one sentence, describe why it has a positive or negative value. C. What would be the value of the chloride equilibrium potential? (show how you calculate this) D. What is the voltage of side B relative to side A? E. Does the chloride equilibrium potential contribute significantly to the voltage actually being measured by the investigator? Why or why not (one sentence)?
Answers
Thank letra b
You were preparing the slides and accidentally spilled some broth inoculated with unknown but potentially highly pathogenic bacteria over the table. Your partner did not notice that and put the marker on that spot while labeling the slides. Then he passed marker to the other working pair of students. Everybody routinely washed their hands with regular soap by the end of the lab and left home.
How many direct and indirect transmission episodes could you expect after all?
A. 1 direct and 3 indirect transmissions
B. 1 direct and 2 indirect transmissions
C. 3 indirect transmissions
D. Unknown number of direct and indirect transmissions
Answers
Answer:
C. 3 indirect transmissions
Explanation:
In epidemiology, direct transmission is considered to occur when an individual has direct contact with a pathogen, which infects him and develops a disease. Indirect infections, on the other hand, occur when individuals come into contact with the pathogen through a transmission vehicle.
In this case, we can conclude that in the question above, there were 3 cases of indirect transmission. This is because all people who had contact with the pathogen, established that contact through the contaminated marker. In this case, the marker is a transmission vehicle.
Which natural resource is formed from the deposition of sedimentary rocks?
Answers
The answeris Coal to this answer
Hopes this helps
what is the importance of mastication during digestion
Answers
Mastication is the process by which food is crushed and ground by teeth. It increases the surface area of foods to allow a more efficient break down by enzymes.
Students have expressed a protein according to the BASIL protocols. They collected a pre-induction sample, a post-induction sample, and a sample following an affinity column purification. The samples were analyzed by SDS-PAGE followed by Coommassie Blue staining. Which lane corresponds to which sample?
Answers
Answer:
The first lane with the protein band is the post-induction sample, i.e., the lane with the sample of interest.
Explanation:
Antibody binding is specific and will only bind to whichever protein it has been produced for particularly, which in this case would be the post induction sample.
Why are plant leaves green? Select one: a. They absorb only green wavelengths of light. b. They absorb only yellow and blue wavelengths of light. c. They reflect nearly all wavelengths of light. d. They reflect green wavelengths of light. e. They reflect yellow and blue wavelengths of light.
Answers
Answer: Option D.
They reflect green wavelengths of light
Explanation:
Plant leaves are green because they have chlorophyii in their chloroplast. Chloroplast is a organelle that contain the green pigment chlorophyii. The plant contain chlorophyii a and b. The Chlorophyii absorb blue and red wavelengths and other wavelengths are reflected including green are reflected so that the leaves appear green.
Which is at a higher concentration in acids:
a) H30+ (hydronium)
b) OH (hydroxide)
Answers
Answer:
A
Explanation:
Advantages of attached algae
Answers
Answer:
Algae is a non flowering plant and found in very most and wet areas.
The Importance of algae include mopping up of the Carbon dioxide present in waterbodies and producing some amount of oxygen to the water through photosynthesis and this helps in the survival of sea animals.
It also helps in pollution control and degradation of hard toxic substances.
They also serve as source of food of sea animals.
the frequency of down syndrom increase with
the age of parents ?
Answers
Answer:
See below
Explanation:
Researchers found that the rate of Down syndrome among parents over 40 was 60 per 10,000 births, which is six times higher than the rate found among couples under 35 years old.
Why is the Calvin cycle considered a dark reaction
Answers
Answer:
because it's the part that doesn't need energy from the sun to happen. The Calvin cycle takes place within the stroma of the chloroplast.
Explanation:
Answer:
The Calvin cycle can occur in the absence of light.
The Calvin cycle requires ATP and NADPH.
Explanation: See Above
A scientist is trying to determine the population size of western fence lizards (Sceloporus occidentalis) in the Sycamore Canyon Park in Riverside using the mark-recapture method. During her first sampling event, she caught and marked 50 lizards which she then released back into the population. A week later she caught a total of 45 lizards, 7 of which were marked. What is the estimated population size of the western fence lizard?
Answers
Answer:
approximately 321
Explanation:
Using the mark recapture method formula, we can estimate the population size of the western fence lizard from this.
N = (M*C)/R
Where N is the estimated pop size
M is the first capture marked
C is the total second capture
R is the marked recaptured
Thus, N = (50*45) / 7
N =2250/7 = approximately 321
The mark-recapture method is an indirect method to estimate population sizes. In this example, the estimated population size of the western fence lizard is N = 321.42 individuals.
------------------------------
There are different methods to study population density.
There are direct methods and indirect methods.
Among these last ones, we might find the Mark-Recapture technique.
The Mark-Recapture technique assumptions are
A closed population during the sampling season, with no mortality nor natality. Random distribution of individuals in the population, All the individuals have the same probability of being sampled.Marks in the individual last the whole sampling season, Marks do not affect the individuals or their behavior.The method consists of
1) Capturing a first sample of individuals belonging to the population under study, in this case, lizard's population.
2) Marking the captured individuals and releasing them again.
3) Taking a second sample where a new capture is done
4) Counting the number of individuals that are already marked. These marked individuals belong to the first sample.
5) Calculating the population size by using the Lincoln Index or any other index.
The Lincolns Index estates that to estimate the total number of individuals in this population, N, the following equation must be considered:
N = (n1 x n2) / m
1) The initial sample has n1 number of individuals
2) The second sample has n2 number of individuals
4) The number of already marked individuals is m
5) The total number of individuals in the population is N
In the exposed example,
n1 = 50 lizardsn2 = 45 lizardsm = 7 lizardsN = (n1 x n2) / m
N = ( 50 x 45 ) / 7
N = 2250 / 7
N = 321.428 ≅ 321.42 individuals
The estimated population size of the western fence lizard is N = 321.42 individuals.
------------------------
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what is the function of guard cells?
Answers
Answer:
Guard cells are adapted to their function by allowing gas exchange and controlling water loss within the leaf. The size of the stomatal opening is used by the plant to control the rate of transpiration and therefore limit the levels of water loss from the leaf. This helps to stop the plant from wilting .
Explanation:
Explanation:
regulates the entry of materials needed for the process of photosynthesis. can contain chloroplast which can also make them a site of photosynthesis
Court witnesses are asked "to tell the truth, the whole truth, and nothing but the truth." Research shows, however, that eyewitness accounts of crimes often are unreliable because even the most conscientious witnesses misremember details of what they observed. What other factors that might affect the "truth" a court witness presents?
Answers
Answer:
Check explanation
Explanation:
The testimony presented by an eyewitness is unreliable for a number of reasons, a few of which are listed below:
1. The witness may give false details about the incident out of fear or pressure.
2. The witness may misidentify a convict and ruin an innocent person's life by putting them in jail.
3. Events are not stored perfectly in one's memory, as research has shown, making eye witness accounts inaccurate.
In order to produce a massive amount of fibrin molecules, thrombin needs to be present. To ensure abundance of thrombin production, thrombin stimulates its own production by stimulating the formation of tissue factor and PF-3, which activates further platelet aggregation. This pattern of stimulation is known as a
Answers
Answer:
Positive feedback loop
Explanation:
Thrombin is a protease which is involved in the physiological role of blood clotting and homeostasis. A Blood clot is formed when a mesh-like structure is formed with the fibrin molecules.
The formation of fibrin molecules requires thrombin proteases which converts the fibrinogen to fibrin molecules. To produce more fibrin molecules, thrombin is required in higher amount.
To produce a high amount of thrombin, thrombin stimulates its production. Such physiological loop where the production of the product proceeds reaction in the forward direction and stimulates its production is known as a positive feedback loop.
Thus, a positive feedback loop is the correct answer.
In a few generations, this population of beetles changed.
After few generations
Which is the most likely explanation for the change?
Answers
Answer:
https://brainly.com/question/1852726#:~:text=Answer%20Expert%20Verified&text=The%20right%20answer%20is%20D,(also%20called%20genetic%20diversity).
Explanation:
Choices:
The beetle population moved to a greener habitat.
A natural disaster almost caused the extinction of the population.
The beetle population’s food sources decreased dramatically.
A mutation resulted in a new color of insect.
Answer: A
The beetle population moved to a greener habitat.Cant Be D Did test
Which of the following is not a method of heat transfer? Conduction Insulation Radiation Convection
Answers
Answer:
insulation is the correct answer
The method that is not one of the heat transfer method is insulation.
Heat transfer can be regarded a term in thermal engineering use to describe the generation as well as the use and conversion, exchange of thermal energy that exist between physical systems. Heat transfer can be done with different mechanismsThese are: conductionconvectionRadiationConvection can be regarded as the flow of heat in fluids, these fluids could be warmed gas, water.Conduction can be regarded as the movement of heat through objects that are in physical contact, like two metalsRadiation can be regarded as the energy which appears from a source then travels through space, this do contain wave-like properties. Insulation can be regarded as setting up a barrier between two objects, usually between hot and the cold object , so that heat reduction can be achieved.Therefore, Insulation is not heat transfer mechanism, it i a way to reduce heat loss.
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The molecules in the image below are able to move across the cell
membrane through channels in the membrane proteins. The cell does not use
any energy to move the molecules down the concentration gradient. What
kind of transport is the cell using?
Answers
Answer:
A
Explanation:
An unfertilized egg cell has six chromosomes. After fertilization, how many chromosomes should the zygote have?
Answers
Answer:
12 chromosomes, because the basic (haploid) number of chromosomes is 6 (n: 6)
Explanation:
The unfertilized egg contains a basic (haploid) number of chromosomes (n), being in this case 6. In humans, for example, the gamete haploid cells have a basic n content of 23 chromosomes, while in somatic cells this DNA amount is duplicated (2n), being therefore 46 chromosomes that are organized into 22 pairs of autosomal chromosomes and two sex chromosomes (X and Y).
Please provide a legitimate answer and provide an explanation for the question below.
Why is a supply of oxygen important for muscle contraction?
Answers
Answer:
For muscle contraction to take place oxygen is needed. ... Oxygen allows the body to convert glucose into ATP more efficiently without creating a waste product.
Cellular respiration is the process in which your muscles use oxygen to produce ATP energy. ... Whether you're exercising or not, the oxygen in your body is used to break down glucose and create the fuel for your muscles called ATP
ATP= Adenosine triphosphate
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Explanation:
freshwater biomes have
Answers
Answer:
c. A salinity of less than 1%
Explanation:
The organelle located near the nucleus in the cytoplasm that divides and migrates to the opposite poles during mitosis; is involved in the formation of the mitotic spindle.
A. Lysosome
B. Vacuole
C. Cell membrand
D. Centrosome
Answers
Answer:
D
Explanation:
The centrosome where they are paired structures lying at right angles to one another. In this context they are possibly involved in spindle assembly during mitosis.
Which of the following hormones is synthesized in hypothalmus and secreted from pitutary? Vasopressi or adrenocorticotropic hormones
Answers
Answer:
Vasopressin
It is synthesized in the hypothalamus and then secreted by the posterior lobe of pituitary gland
uses of gene cloning in the production of human insulin
Answers
Answer:
what's gone cloning tho?
explain why prolonged anaeorobic fermatation could cause the enzyme of a cell to become increasingky dysfunctoin and eventually lead to a shutdoen of the cells metabolic pathways
Answers
Answer:
This is end product inhibition. It is a situation in which the product of a reaction inhibits the activities enzyme that catalysis it formation and therefore stop the progress of the reaction.
E.g in Lactic acid fermentation accumulation of lactic acid lowers the pH of the cells,and therefore affects the active site of the enzymes by disrupting the 3D structure for reactant and enzyme specificity, and therefore prevent the formation of enzyme=substrate complex, which forms the products
Explanation:
Mario performed an experiment to determine if photosynthesis was affected by the amount of light that a plant received. The data from his experiment are shown in the table below. Amount of light (hours) Number of plants Average volume of oxygen produced (mL) 1 4 0.50 6 4 2.0 10 4 5.0 What could he have done to increase the validity of his data? Reduce the number of plants. Remove the 1 hour group. Add a 0 hours control. Measure the oxygen in liters.
Answers
Answer:
Add a 0 hour control
Explanation:
In an experiments, a control is what serves as a guide to measure the amount of change.
An experiment is made up of independent and dependent variable
the dependent variable is the variable to be measured that is varied and in this case its the number of light while the independent variable stands alone and been depended on by dependent variable. For more precision, the varied variable should have an experimental control that will serve as a check to know if indeed the varied number of light is of significance or not. If the control is having higher average performance than the experimental variable then it shows the control is more preferably but when the performance of the variable is higher than the control then its indicates that either one or some of the variable or all are equally better than the control and can be used.
Answer:
Add a 0 hour control
Explanation:
i did the test
What peritoneal fold that connects the liver to the stomach
Answers
When carbohydrates are digested, the monomer is/are_.
•amino acid
•fats and oils
•nucleotides
• sugars
Answers
.....
...
..
Sleet forms from which type of precipitation?
snowflakes
ice crystals
rain droplets
Snow
I NEED TO KNOW ASAP
Answers
Answer:
rain droplets
Explanation:
Answer:
rain droplets
Explanation:
Part C Having correctly established the F2 ratio in Part B, now predict the F2 phenotypic ratio of a "dihybrid" cross involving two independently assorting genes, A and W, for this cross. WWWWAAAA x wwwwaaaa The F2 ratio would be: ____ dominant W and dominant A individuals : ____ dominant W and recessive a individuals : ____ recessive w and dominant A individuals : ____ recessive w and recessive a individuals Enter your answer as four numbers separated by colons (example: 9:3:3:1).
Answers
Answer:
The F2 ratio would be: 1:0:0:0 dominant W and dominant A individuals : 1:1:0:0 dominant W and recessive a individuals : 1:1:0:0 recessive w and dominant A individuals : 1:1:0:0 recessive w and recessive a individuals
Explanation:
All the progeny resulting from this cross will be of an identical genotype (WWwwAAaa) since the parent genotype is homozygous dominant being crossed with homozygous recessive. The phenotypic ratio in this case is 1:0:0:0, indicating that all offspring express the dominant trait and are carriers of the recessive trait.