Answer:
B. The density of the population.
Explanation:
In CaF2, the oxidation number of Ca is , and that of F is . In H2SO4, the oxidation number of H is , that of S is , and that of O is . In CaSO4, the oxidation number of Ca is , that of S is , and that of O is . In HF, the oxidation number of H is , and that of F is
Answer:
1. The oxidation number of Ca is 2, F is -1 in CaF₂
2. The oxidation number of H is 2, S is 6, O is -8 in H₂SO₄
3. The oxidation number of Ca is 2, S is 6, O is -8 in CaSO₄
4. The oxidation number of H is 1, F is -1 in HF
Explanation:
To get the oxidation number, we need to take the oxidation number of the whole compound 0. Then we need to know the oxidation number of the other elements and we need to take 'x' as the oxidation number of the unknown element.
Example:
In case of CaSO₄,
We can write an equation as-
CaSO₄ = 0
If we need to know the oxidation number of S
We can write the equation like this-
→2+ x+ (-2*4) = 0 (as we know the oxidation number of Ca is 2 as it has two electrons in its last shell which it gives to other elements to form bonds and the oxidation number of O is -2 as it takes 2 electrons to complete its outer shell)
→2+ x+ (-8) = 0
→2+ x- 8 = 0
→x- 6 = 0
→x = 6; which is the oxidation number of S
The following are the oxidation numbers:
In CaF2, the oxidation number of Ca is +2, and that of F is -1.
In H2SO4, the oxidation number of H is +1, that of S is +6, and that of O is -2.
In CaSO4, the oxidation number of Ca is +2, that of S is +6, and that of O is -2.
In HF, the oxidation number of H is +1, and that of F is -1.
What is oxidation number?Oxidation numbers are a way of representing the degree of oxidation (loss of electrons) or reduction (gain of electrons) of an element in a chemical compound. The oxidation number of an element is calculated based on the number of valence electrons (electrons in the outermost energy level of an atom) and the rules for assigning oxidation numbers.
In general, the oxidation number of an element is equal to the charge it would have if all the bonds in the compound were ionic (made up of positive and negative ions). This allows chemists to predict the behavior of elements in a compound and to balance chemical equations.
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Which of the following best characterizes an adaptive radiation? Which of the following best characterizes an adaptive radiation? Natural selection is particularly intense because disruptive selection occurs. A single lineage diversifies rapidly, and descendant species occupy many habitats and ecological roles. Descendant species occupy a large geographic area. Species recover after a mass extinction.
Answer:
A single lineage diversifies rapidly, and descendant species occupy many habitats and ecological roles.
Explanation:
In biology, adaptive radiation refers to a phenomenon in which organisms tend to diversify rapidly from a common ancestor and then radiate into a multitude of new organisms.
These new organisms may have to change their environment in order to survive. This change in their environment creates new challenges and may lead to the appearance of new environmental niches.
what effect does smoking have on cilia.
Answer: The cilia sweep out mucus and dirt so your lungs stay clear. Smoking temporarily paralyzes and even kills cilia. This makes you more at risk for infection. Smokers get more colds and respiratory infections than non-smokers.
Explanation:
what mode of nutrition is house fly
Answer:
Houseflies do not have chewing mouthparts like a cockroach or piercing-sucking mouthparts like a mosquito. They regurgitate digestive enzymes, soften and liquify the food material, and then they sop it up with their sponging mouthparts.
Hope this makes sense and helps
6. Which type of seismic wave is highlighted in the image?
O A. P wave
B. S wave
O C. Love wave
D. Rayleigh wave
Answer:
Rayleigh wave
Explanation:
Rayleigh waves are a type of surface acoustic wave that travel along the surface of solids. They can be produced in materials in many ways, such as by a localized impact or by piezo-electric transduction, and are frequently used in non-destructive testing for detecting defects.
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Rayleigh wave, surface acoustic waves called Rayleigh waves move along the surface of solids, hence option D is correct.
What is seismic wave?They are commonly employed in non-destructive testing to find flaws and can be created in materials in a variety of methods, as by a localized impact or by piezoelectric transduction.
These include what are known as Rayleigh waves. A Rayleigh wave's amplitude decreases with depth below the surface and becomes noticeably tiny at depths greater than a few wavelengths.
As a result, the disturbance is limited to a solid's surface layers. The motion experienced by the surface layers includes both transverse and longitudinal components.
Therefore, Rayleigh wave type of seismic wave is highlighted in the image.
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Which statement below correctly describes what the model shows? *
1
Answer:
I reckon it's part D.
Explanation:
Cómo explicarías tu que el soporte vegetal es más importante que los animales en un ecosistema?
Answer:
Las plantas son productores primarios, mientras que los animales son consumidores
Explanation:
La cadena alimenticia está conformada por niveles tróficos donde la energía fluye desde los niveles basales representados por la base de la pirámide, hasta los niveles superiores (pico de la pirámide). De este modo, los organismos representan diferentes eslabones de acuerdo a su posición en la cadena alimenticia. En el primer nivel se encuentran los productores primarios como lo son, por ejemplo, las plantas y algas de ambientes terrestres y acuáticos, respectivamente, siguiendo por los consumidores primarios (por ejemplo, especies hervívoras), continuando sucesivamente por los consumidores secundarios, terciarios y cuaternarios (especies carnívoras), los cuales se encuentran en posiciones cada vez más altas de la pirámide. No obstante, es importante indicar que existen ocasiones donde los consumidores superiores (ya sea secundarios, terciarios y cuaternarios) se alimentan de especies situadas por debajo de diferentes niveles no consecutivos e incluso también de especies pertenecientes al mismo nivel trófico, con lo cual encajando en más de una categoría y dificultando su clasificación en la cadena.
Earth is heated by global warming how Ian the water cycle affected global warming
Answer:
The heat increases the rat of the water making it easier for the water to turn onto vapor
Explanation:
Answer:
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Explanation:
As the global temperatures increases, more evaporation and precipitation will be the result. Hence, speeding up the water cycle.
At higher temperatures, there is more evaporation from land and sea into the atmosphere. Since the air gets warmer, it can hold more water vapor, this can lead to high rainstorms or precipitation.
How do we use magnetic force every day?
magnet on the doors of fridges provide a tight seal to prevent the food from spoiling/rotting
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Which describes a grizzly bear’s habitat? all the biotic factors in the ecosystem all the abiotic factors in the ecosystem the role of the bear in the ecosystem the physical area where the bear lives
Answer:
it is D
Explanation:
A grizzly bear’s habitat comprises of the physical area where the bear lives
What is a habitat?A habitat is defined as the dwelling home of living organisms.
There are three major types of habitat; namely:
Terrestrial habitatAquatic habitatArboreal habitatTerrestrial habitat is the land habitatAquatic habitat is the water habitatArboreal habitat is the tree habitatLearn more about habitat:
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3. Why are some potentially
renewable resources currently
nonrenewable resources?
HEEEELP PLZ who invented the Binomial nomenclature
Answer:
Carl Linnaeus invented the binomial nomenclature
Answer:
Carolus Linnaeus or Carl von Linné (born in Älmhult, 23 May 1707 - died in Uppsala, 10 January 1778 at the age of 70) was a Swedish scientist who laid the foundation of biological nomenclature. He is known as "the father of modern taxonomy" and is also one of the fathers of modern ecology.
Please I need help with this
cientists tried inserting the jellyfish gene that codes for luminescence into bacteria. Not all bacteria where transformed. Which bacteria were transformed?
a Only the bacteria that glow in the dark were transformed.
b Both glowing and non-glowing bacteria were transformed.
c Only the bacteria that can now survive in the sea were transformed.
d Only the bacteria that do not glow in the dark were transformed.
Answer:
a. Only the bacteria that glow in the dark were transformed.
Explanation:
If the bacteria can now glow in the dark, they have been transformed. If not, they have not been transformed.
Type 2 diabetes (insulin-independent diabetes) is a non-infectious disease. If not treated this disease is characterised by large fluctuations in the concentration of glucose in the blood Maltase is an enzyme that completes the digestion of starch in humans Molecules of maltase are bound to the microvilli of epithelial cells in the small intestine Ascorbate is a drug used in the treatment of type 2 diabetes. Molecules of ascorbic have a very similar shape to that of the substrate for maltase. (1) Explain how ascorbase acts to inhibit these membrane-bound enzymes.
Answer: Ascorbase a form of ascorbate, a drug used in the treatment of type 2 diabetes which acts to inhibit maltase a membrane bound enzyme that completes the digestion of starch in the human body.this inhibition is done through;
- By preventing substrates from binding to the active site therefore forming few enzyme complex substrates.
- it also inhibits the enzymes by binding to the active sites of that enzyme.
- it also does so by reacting slowly and also because it has a complementary shape to the active site of the enzyme maltase.
what does Ecology mean
Answer:
a branch of science concerned with the relationships between living things and their environment or the pattern of relationships between living things and their environment.
Explanation:
Please choose the answer that best fills in the blanks of this statement in the correct order. Photosynthesis proceeds in two phases: the light-_______ reactions which proceed only in the presence of sunlight, and the light-________ reactions which proceed regardless of the lighting conditions.
Answer:
first blank dependent
second blank independent
Explanation:
Light Dependent reactions depend on light and right independent reactions don't
What is another name of molecular biology????
Answer:
biotechnology
Explanation:
hope it help you
Answer:
biotechnology biotech
biological engineering biological science
Mr. B has been transferred to your floor to wait and see whether the chest tube allows his lungs to completely re-expand. But when he arrives, he is in severe respiratory distress. He says "I felt better before I came into the ER! Is this tube doing anything
The question is incomplete,below is the complete question.
Mr. B has been transferred to your floor to wait and see whether the chest tube allows his lungs to completely re-expand. But when he arrives, he is in severe respiratory distress. He says "I felt better before I came into the ER! Is this tube doing anything?"
You tell the Clinical Nurse Specialist (CNS). As the two of you move him into the bed, you notice that his chest tube bottle is lying on its side on the gurney, with air going into it. When you point this out to the CNS, she immediately grabs the bottle and sets it upright on the floor. You see air start bubbling through the fluid right away. "That was the problem!" she says. "They lost the water seal, and air was going into his chest from the bottle. You would not believe how many times that happens on transport." When you examine Mr. B, you have trouble detecting his lung sounds on the left. Even stranger, his apical heart sound is in the wrong place - it is over toward the right side of his chest. His respiration rate and heart rate are both increased, and he is struggling to breathe. "Let's give him a little oxygen. He'll be a lot better in a half-hour," says the CNS. "Check back on him."
QUESTION - Why would accumulation of air in his pleural space cause his heart sounds to be in the wrong place?
Accumulation of air in Mr B pleural space will cause his heart sound to be heard in the wrong place because the left side is his chest is being filled up with air making the organs in his chest to to be pushed over to the right side.
An 18-month-old boy was referred to the pediatrics clinic because of persistent anemia and associated failure to thrive. Laboratory analysis confirmed a microcytic anemia and revealed blood lead levels of 50 mg/dL (2 times normal levels) and high levels of coproporphyrinogen III in the urine. The child was put on chelation therapy and recovered uneventfully. The cause of the child's difficulty was most likely due to the effects of the lead. The findings in this patient most closely reflect lead inhibition of which of the following enzymes of heme biosynthesis?a) δ-aminolevulinic acid (ALA) dehydrataseb) ferrochelatasec) porphobilinogen (PBG) deaminased) proporphyrinogen III cosynthasee) uroporphyrinogen decarboxylase
Answer:
B) Ferrochelatase
Explanation:
The hematological effects of lead poisoning includes the inhibition of the body's ability to produce hemoglobin. This is done by interfering with several enzymatic steps in the heme synthesis pathway.
Lead inhibits or decreases heme synthesis by inhibiting Ferrochelatase enzyme activity.
Ferrochelatase catalyses the insertion of iron into protoporphyrin IX and is very sensitive to lead.
The removal of waste products from the body is called
Answer:
It is called EXCRETION.
Explanation:
This is a process by which metabolic waste is removed from a living organism.
The excretory organs removes these waste.
Accumulation of these in the body is very harmful to our system.
Hope all these helps.
In soccer, Hai is a goal scorer who plays in forward positions, always keeping his eyes trained on the ball and chance to put one past a goalkeeper. He's not above playing advantages. "(Other players) don't want to hurt me," he said. "I try to juke them." His coach said opponents soon learn to play him honestly or pay the consequences
Complete question reads;
Read the following paragraph from the article.
In soccer, Hai is a goal scorer who plays in forward positions, always keeping his eyes trained on the ball and chance to put one past a goalkeeper. He’s not above playing advantages. “(Other players) don’t want to hurt me,” he said. “I try to juke them.” His coach said opponents soon learn to play him honestly or pay the consequences.
Which idea is BEST supported by the above paragraph?
(A) Hai's coach recognizes that Hai needs to be protected from bullying.
(B) Hai is a very skilled soccer player who consistently outdoes his peers.
(C) Hai's coach wants Hai to understand that it is not acceptable to cheat to win a soccer game.
(D) Hai is sometimes underestimated by other players, and he uses this to his advantage.
Answer:
(C) Hai's coach wants Hai to understand that it is not acceptable to cheat to win asoccer game.
Explanation:
The expression, "pay the consequences" as used by Hai's coach indicates his intention of letting Hai know the rules governing soccer; meaning there's a penalty when opponents hurt a rival player.
Interestingly, in the game of soccer, it is a foul to deliberately bring down your opponent. Major consequences arrive when a player receives a red card from the referee, due to an offense committed by the player; the red card indicates that the player would be sent out of the court.
Identify the error in the following statement: “Photosynthesis is a chemical
reaction that takes place in the chloroplasts of green plant cells, where chemical
energy is used to convert carbon dioxide and water into glucose and oxygen."
A. No errors
B. "water" and "oxygen" should be switched
C. "chemical" should be "light"
D. "chloroplasts" should be "mitochondria"
Answer:
It is 'C'
Explanation:
The chemical reaction that occurs in the chloroplast is:
6CO₂ + 6H₂O → C6H₁₂O₆ + 6O₂
The electromagnetic energy of sunlight is converted to chemical energy in the chlorophyll-containing cells of photosynthetic organisms. The granum stores the photon particles from light and converts its energy into chemical energy to convert carbon and water into glucose and oxygen.
Answer:
c
Explanation:
What is a scientific theory? What is a hypothesis? How are they similar? How do they differ?
Answer: Scientific theories can be backed up with evidence/data (the evidence that backs the theory isn't common knowledge to everyone yet), while a hypothesis is just an educated guess, meaning that you are making a prediction based on something already known.
They are both similar in the sense that they are questions that are answered by facts, but theories are answered with factual evidence rather than factual reasoning (hypothesis).
Which type of volcanic mountain has wide, gentle slopes?
Answer:
Shield volcanoes
Explanation:
Answer:
Shield volcanoes
Explanation:
Shield volcanoes erupt thin, 'runny', lava that forms a gently sloping structure. Where a volcano produces low viscosity, runny, lava it spreads far from the source forming a volcano with gentle slopes. This type is called a shield volcano. Mauna Kea and Mauna Loa are shield volcanoes.
a student hypothesized that pillar coral eat and digest zooxanthellae. which of these observations would cause the student to change this hypothesis
Answer:
the zooxanthellae in a pillar coral's body are alive
What is conjunctivitis
Answer:
[tex] \underline{ \underline \orange{see \: below}}[/tex]
Explanation:
Conjunctivitis is an inflammation, infection of the conjunctiva. It is the most common ocular disease worldwide.It is characterized by a pink appearance because of subconjuctival blood vessels hemorrhage.
Simply, we can define it as :
Conjunctivitis ( pink eye ) is an inflammation or infection of the transparent membrane ( conjunctiva ) that lines your eyelid and covers the white part of your eyeball.
Pink eye is commonly caused by a bacterial or viral infection , an allergic reaction or in babies.
The most common pink eye symptoms include:
Redness in one or both eyesItchiness in one or both eyesA gritty feeling in one or both eyesHope I helped !
Best regards!
A 6-month-old who is failing to thrive is brought to your clinic. Tests reveal hepatosplenomegaly, muscle weakness and atrophy, hypotonia, and decreased deep tendon reflexes. Biopsy of the liver reveals initial stages of cirrhosis due to the accumulation of an abnormal glycogen whose structure resembles amylopectin. These results indicate the child is suffering from Andersen disease. Which of the following would also be expected in this child?a) aminoaciduriab) hyperglycemiac) hyperlipidemiad) hypoglycemiae) normal glycemia
Answer:
c) hypoglycemia
Explanation:
Hyperglycemia refers to the condition in which blood contains low amount of sugar or glucose molecules. The feeling of hunger, sweating and weakness of muscles are the symptoms of this disease and we know that the child has weak muscles so we can say that the child is suffering from hypoglycemia which is another disease that is present in the child.
Los cuyes del pelo crespo, al ser cruzados con cuyes de pelo liso, producen solamente cuyes de pelo crespo, si se cruza uno de los cuyes de pelo crespo de F1 con el homocigoto recesivo. ¿Qué proporciones es posible esperar
Answer and Explanation:
Datos:
El alelo dominante del gen que codifica para el tipo de pelo, determina el pelo crespo. Llamemos P al alelo dominante. Genotipos que expresan pelo crespo: PP (Homocigota dominante) y Pp (Heterocigota)El alelo recesivo del gen que codifica para el tipo de pelo determina el pelo liso. p es el alelo recesivo.Genotipo homocigota recesivo, pp, expresa pelo liso.La cruza entre un cuy de pelo crespo y un cuy de pelo liso producen solo cuyes de pelo crespo. Esto implica que el parental con pelo crespo era homocigota dominante.1º Cruza: un cuy de pelo crespo y un cuy de pelo liso
Parental) PP x pp
Gametas) P P p p
Cuadro de Punnet) P P
p Pp Pp
p Pp Pp
F1) 100 % de la progenie posee pelo crespo
4/4 tienen genotipo heterocigoto.
2º Cruza: un cuy heterocigoto de la F1 y un cuy homocigoto recesivo
Parental) Pp x pp
Gametas) P p p p
Cuadro de Punnet) P p
p Pp pp
p Pp pp
F2) 50% de la progenie tiene pelo crespo
50% de la progenie tiene pelo liso
2/4=1/2 de la progenie es heterocigota
2/4 = 1/2 de la progenie es homocigota recesiva.
all members of the plant kingdom contains chlorophyll? true or false
Answer:
this is true
Explanation:
if it isnt in the leaves of a plant, then its in the stem, or maybe, the entire thing is green!
flowers have green stems, trees have green leaves, lily pads are green, etc.
hope this helped
Answer:
True
Explanation:
All plants contain chloryphyll
