Answer:
First law of thermodynamics is the conservation of energy states that energy is not created and not destroyed but only can be stored.
Thermodynamics second law states that total entropy of a system increases from lower to higher system and some of the energy is always wasted during the work done.
In the food chain plants are the producers which accept light energy and stored in the form of chemical energy and energy flow to the herbivores and higher trophic levels in the chemical form only and no new energy is created in between the chain (Fisrt law of thermodynamics). Heat is generated during respiration by plants and animals (wasted energy) and entropy also increases with the increase in level of the pyramid of energy (Second law of thermodynamics).
nitrogen-fixing prokaryotes
nitrifying prokaryotes
nitrogen to ammonia
convert ammonia
to nitrites and nitrates
convert nitrates to
atmospheric nitrogen
denitrifying prokaryotes
An ecosystem experiences a loss of denitrifying prokaryotes. Will this loss affect the health of the ecosystem?
OA. No, because denitrifying prokaryotes do not produce the usable form of nitrogen needed by organisms.
OB. Yes, because an excessive level of usable nitrogen could accumulate and disrupt the ecosystem's balance.
OC. No, because atmospheric nitrogen is not necessary to most organisms in an ecosystem.
D. Yes, because plants and animals will no longer have the usable form of nitrogen that they need to grow.
egion Scor
Answer:
The correct answer is option D. Yes, because plants and animals will no longer have the usable form of nitrogen that they need to grow.
egion Scor
Explanation:
Denitrifying prokaryotes are the organisms that perform the denitrification process in which nitrate is reduce to nitrogen gas in absence of the oxygen with the help of soil microbes such as denitrifying bacteria. It is a essential process that helps in the recycling of nitrogen.
Denitrification can negatively impact global warming by increasing nitrogen gas in environment and losses of nitrous oxide and reducing soil fertility and there would be loss of productivity in agriculture.
Thus, the correct answer is option D.
DeKwami is conducting an experiment in which he needs to use both sucrase and catalase. Which pH should he prepare to ensure that BOTH of the enzymes will show some activity?
Answer:
pH of 6.5
Explanation:
The pH favorable to an enzyme where it is most active is called optimum pH. The optimum pH of sucrase is about 6.0 while that of catalase is 7.0. Both enzymes can however still show some activity when the solution is slightly basic or slightly acidic (from it's optimum pH). Hence, getting the middle point (6+7/2 = 6.5) between the optimum pH of the two enzymes and preparing same will ensure the enzymes show some activity.
3 concepts about carbohydrates?
Answer:
Monosaccharides, disaccharides, and polysaccharides. Polysaccharides, also called complex carbohydrates, are large non-polar molecules, and they are not hydrophilic.
You are doing research on a bacterial species, trying to determine the nature and structure of a number of intracellular inclusions. Which type of microscopy would provide the best view of these intracellular structures
Answer:
Transmission Electron Microscope.
A Transmission Electron Microscope provides the best view of the intracellular structures.
What is Transmission Electron Microscope?
Transmission electron microscopes (TEM) are microscopes that use a particle beam of electrons to visualize specimens and generate a highly-magnified image. TEMs can magnify items up to 2 million instances. with a purpose to get a better concept of simply how small that is, think about how small a cellular is.
What is a transmission electron microscope used for?The transmission electron microscope is used to view skinny specimens (tissue sections, molecules, etc) through which electrons can bypass producing a projection picture. The TEM has similarities in lots of ways to the traditional (compound) light microscope.
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The evolution from vesicles to true cells was best facilitated by the development of (2 points) a membrane separating the cell from its environment organic molecules:______.
a. such as carbohydrates and lipids self-replicating molecules,
b. such as RNA and DNA inorganic molecules,
c. such as nitrogen and oxygen
Answer:
b. such as RNA and DNA
Explanation:
DNA and RNA represent essential molecules present in all organisms. These nucleic acids (DNA and RNA) are composed of large chains of nucleotides that function to synthesize proteins required for cellular processes and to produce cell structures. Both RNA and DNA are highly stable biomolecules capable of storing and transmitting genetic information, which has been a requisite for the evolution of modern cells. Moreover, it is important to note that DNA is a double-stranded molecule and therefore it is more stable than single-stranded RNA.
Answer:
self replicating molecules, such as RNA and DNA
Explanation:
How might you model the relationship between a tomato plant and the hornworm caterpillar? Identify the components of the model, including inputs and outputs.
Answer:
Ok, there are multiple ways of model this, one of the ways can be:
Knowing that a hornworm can strip a tomato plant of its foliage in about two days, we can count the number of hornworms (x, the input) and find the number of plants (y, the output) that they can eat in a day.
So, if a hornworm can eat a plant in two days, then in one day the worm can eat half a plant.
Then:
y = (0.5plants/worm)*x
This says:
The number of plants eaten in one day (y) is equal to half of the number of hornworms
OF course, there are a lot of other ways to model this, for example we can use the time as a variable x, and the number of plants as y.
Knowing that a worm eats a plant in two days:
y = (0.5 plants/day)*x
Now x is the number of days, and y is the number of plants that can be eaten by a single worm
If bears find insects after they move decaying logs, they more frequently move decaying logs. This most clearly indicates that finding insects is a
Answer:
Reinforcement
Explanation:
Reinforcement can be referred to as anything that can be used to increase, enhance or strengthen a desirable behavior in a person or an organism. Reinforcement is of two types, they include positive reinforcement and negative reinforcement. Positive reinforcement has to do with adding a reward in order to enhance a desirable behavior, while negative reinforcement has to do with removing an undesirable thing in order to strengthen a desirable behavior.
From the question asked, because the presence of insects after moving the decaying logs increased the frequency at which the bears moved the decaying logs, the finding of the insects is, therefore, a reinforcement. The finding of the enhanced or strengthened the desirable behavior.
Which of the following is true about ischemic stroke? a. Often caused by emboli from the basilar arteries b. Has risk factors that include atherosclerosis c. Can be a result of a hypercoagulable state d. Results from hemorrhage into brain tissue Is associated with acute hypertension
Answer:
b. Has risk factors that include atherosclerosis
Explanation:
Ischemic stroke happens when there are underlying factors such as atherosclerosis. Atherosclerosis is caused by clogging of fat and cholesterol in the blood vessels. The reduction in the flow of blood to the brain is usually as a result of blood clumping together and blocking the blood vessels carrying blood to the brain.
The symptoms of ischemic stroke include dizziness, loss of coordination, headache etc.
1. Os ancestrais das cobras possuíam membros, que desapareceram ao longo da evolução do grupo. Marque a alternativa que explica, de acordo com o lamarckismo, a ausência de patas em serpentes: * 1 ponto a. Os ancestrais das cobras adotaram hábitos rastejantes, deixando de utilizar os membros, que atrofiaram e acabaram por desaparecer nesses animais. b. Existiam variações nas características ancestrais das cobras. Os animais que não possuíam membros, foram selecionados pelo ambiente pois favoreceu o hábito rastejante.
Answer:
ced sfhhhbbbbbbbbbbbbbbbbh
how do I explain science in my own words
Answer:
you can say science is more important for my life
Consider that RR is red (dominant) and WW is white (dominant) plant phenotypes. The offspring of a cross between an RR plant and a WW plant would be pink and white. all pink. all white. red and pink.
Answer:
A, all Pink
Explanation:
Consider that RR is red (dominant) and WW is white (dominant) plant phenotypes. The offspring of a cross between an RR plant and a WW plant would be pink and white. Then the offspring would be pink.
What is dominant plant?Key species that shape how an ecosystem functions are called dominants. Typically, aboveground characteristics are used to evaluate plant dominance.
Individual species, on the other hand, might not scale proportionally belowground compared to aboveground. This is crucial in ecosystems like grassy and shrubby biomes, where the majority of biomass is distributed below ground.
Dominant species are important organisms that influence how an environment works. Typically, plant dominance is assessed using aboveground traits. Individual species may not scale proportionally belowground compared to aboveground, on the other hand.
Therefore, Consider that RR is red (dominant) and WW is white (dominant) plant phenotypes. The offspring of a cross between an RR plant and a WW plant would be pink and white. Then the offspring would be pink.
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Protei
Using what you have learned about carbon bonds
and energy in this lesson what can you say about
the amount of carbon bonds in this food
component compared to the amount of carbon
bonds in the other two food components? Why?
I
RETRY
Answer:
The correct answer would be -
Fat produce greater energy than the carbohydrates and protein.
due to the facts fats and proteins both have carbon bonds
Explanation:
Fat have highest number of carbon bonds in comparison of the amount of the carbon bonds present carbohydrate and protein and similarly protein have greater number of carbon bonds
Digestion of the fats provides the most energy per gram, due to the fact that more carbon bonds to break. Protein as well gives the higher energy per gram if compared to carbohydrates.
Thus, the correct answer is -
Fat produce greater energy than the carbohydrates and protein.
due to the facts fats and proteins both have carbon bonds
Answer:
Fat
Explanation: (answer for second part)
The amount of carbon bonds in fat is much greater than the amount in carbohydrates and proteins. Fats give you the most energy per gram, so there must be more carbon bonds to break, thereby releasing more energy.
animal need ______ in order to build down or breakdown materials. A. Energy B. DNA
Answer:
b
Explanation:
animals need energy to survive basically to breakdown materials too
Answer: A. Energy
Explanation:
animal need Energy in order to build or breakdown materials
DNA is the central core of the animal body, but it is not helping build or breakdown, it is just the genetic information of animals
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a raccoon may live longer if it only eats vegetables what is the student doing
Some students grew sunflowers in the biology laboratory. After three weeks they measured the height of each plant. The following figure shows the conditions of the experiment:
Answer:
a. The factor changing among groups = The color of the light
b. The independent variable in this experiment = Color of light
c. The quantity measured at the end of the experiment = The height of the plant
d. The dependent variable is the height to which the plants grow
e. The control group is the Plant Group C, because they are subjected to normal light
f. The parts of the experiment kept constant are;
Temp
Humidity
Water Daily
Daily Light Exposure
g. The amount of nutrient available and atmospheric gases
h. The growth rate of plant is dependent on the color of the light in which the plant grows
Explanation:
What is one way to create a positive ion?
Answer:
When you are missing an electron or two, you have a positive charge
Explanation:
During strenuous exercise, Max's body produces lactic acid and his blood pH begins to decline. His kidneys go to work to preserve acid-base balance by doing all of the following EXCEPT __________.
a. reabsorbing bicarbonate
b. generating new bicarbonate
c. reabsorbing hydrogen
d. secreting hydrogen
Answer:
c. reabsorbing hydrogen
Explanation:
In this scenario, the individual's kidneys will do all of the following except for reabsorbing hyrdogen. This is because, in a scenario like this where the body pH levels decline the kidneys begin to secrete hydrogen, they do not reabsorb it. It is this process of acid elimination that ultimately causes the body's pH levels to begin rising and restoring themselves to normal. Therefore the answer to this question is c.
Hypothesis statement that includes an independent and dependent variable
Answer:
Best and easiest way is an "If, then" statement.
e.g. If there is no rainfall, then the plants will die.
Explanation:
Which type of protein will fight disease?
Answer:
Antibodies help you immune system.
Answer:
The answer is B
Explanation:
Calculate the percentage loss of mass between the sucrose solutions 0.1 mol/dm3and 0.5 mol/dm3. Give your answer to three significant figures
Answer:
The percentage loss in mass between sucrose solutions 0.5 mol/dm³ and 0.1 mol/dm³ is 80.0% loss in mass
Explanation:
The molecular formula of sucrose is C₁₂H₂₂O₁₁
The molecular mass of sucrose is 342.3 g/mol
Therefore;
The mass of sucrose in 0.1 mol/dm³ solution = 0.1 × 342.3 = 34.23 g
The mass of sucrose in 0.5 mol/dm³ solution = 0.5 × 342.3 = 171.5 g
The percentage loss in mass of the sucrose is given as follows;
[tex]Percentage \ loss \ in \ mass = \dfrac{Original \ mass - New \ mass}{Original \ mass } \times 100[/tex]
Therefore;
[tex]Percentage \ loss \ in \ mass = \dfrac{171.5 - 34.23}{171.5} \times 100 = 80.04 \%[/tex]
Which gives, the percentage loss in mass between sucrose solutions 0.1 mol/dm³ and 0.5 mol/dm³ is 80.0% to three significant figures.
A genetic disorder in which the enzyme to convert a particular amino acid to tyrosine is called __________________.
Answer: A genetic disorder in which an individual lacks an enzyme responsible for converting the amino acid phenylalanine into the amino acid tyrosine is called phenylketonuria (PKU) A trait that is determined by a gene that is found only on the X chromosome is said to be
Explanation:
Mice are offered two different colors of cotton to
make nests with pink and brown. Out of 20 mice, 16
chose pink cotton to build their nests and 4 chose brown
Answer:
1. There is no control group.
2. independent variable is the colors.
3. The dependent variable is how many of each color the mice chose.
Explanation:
Im assuming you were talking about control group, independent, variable, and dependent variables.
What is a chromosome?
A. A strand of DNA
B. A virus that attacks cells
C. A protein used by cells
D. A type of allele
Answer:
A strand of genetic material ... is also A.P.EX approved
DNA stores the genetic code, chromosomes are thread-like structures, and sister chromatids are two halves of chromosomes and a strand of DNA. Thus, option A is correct.
What is chromosome?The genetic code is stored in every cell of your body in the form of deoxyribonucleic acid (DNA). It makes your body's instruction manual. The DNA molecule is packaged into thread-like structures called chromosomes in each cell's nucleus.
The term "homologous chromosome" refers to chromosomes that share the same genetic foundation but may also have variants caused by replication. The two halves of a given chromosome that are held together at the centromere are called sister chromatids.
After the cell has gone through the process of DNA replication in order to get ready for cell division, chromosomes are known as "replication chromosomes" emerge.
Therefore, DNA stores the genetic code, chromosomes are thread-like structures, and sister chromatids are two halves of chromosomes and a strand of DNA. Thus, option A is correct.
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what effect has breast cancer researcher had on society
Answer:
People who have gene mutations have more treatment options.
Explanation:
When both participants in a species' interaction develop adaptations in direct response to one another, this could progress into all of the outcomes except:
Answer:
coevolution
Explanation:
Coevolution refers to the process where two or more species modify each other's evolution via natural selection. Darwin mentioned how insects and flowering plants could coevolve by reciprocal evolutionary modifications. Coevolution has firstly been associated with mutualism between species including, for example, birds and flowering plants. However, coevolution may also involve host-parasite relationships, such as associations involving parasitic organisms and their sexually reproducing hosts. Finally, there are situations where coevolution involves both parasitism and mutualism (i.e., antagonistic coevolution).
The adaptation in direct response to one another could lead to all the outcomes except : Intraspecific interaction ( option 5 )
Intraspecific InteractionIntraspecific interaction is a kind of interaction seen within same species that compete for basic necessities for survival such as food, habitat and water. It does not lead to evolutionary changes within the species, therefore they do not develop adaptations in response to the competition
Hence we can conclude that the adaptation in direct response to one another could lead to all except intraspecific interaction
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Attached below is the missing options related to your question
resource partitioningcoevolutionextinction of one speciescompetitive exclusionintraspecific competitionAnyone answer it The flow of materials in different tropic levels of ecosystem is Unidirectional Bidirectional Multidirectional.
Answer:
unidirectional is ur answer mate
hope it helps u
Answer:
unidirectional
Explanation:
.................................
Incomplete expansion or collapse of part or all of a lung due to mucus, tumor, or a foreign body that blocks the bronchus is called:_________.
Answer:
Atelectasis
Explanation:
Atelectasis is a medical ailment which affects the respiratory system. It is formed as a result of incomplete expansion or collapse of part or all of a lung due to mucus, tumor, or a foreign body that blocks the bronchus.
It is however common with people who are asthmatic other have lung diseases and it is characterized by low fever, breathing difficulty .
An individual with the genotype AaBb produces four different gametes in equal proportions. This is a demonstration of:_____.a. the chromosomal theory of inheritance.
b. Mendel's law of independent assortment.
c. Mendel's principle of segregation.
d. linkage.
Answer: b. Mendel's law of independent assortment.
When you decide whether or not the data supports the original hypothesis, you are.... asking questions asking questions forming a hypothesis forming a hypothesis making observations making observations drawing conclusions
Answer:
drawing conclusions
Explanation:
When a scientist decides if the data collected during an experiment supports the original hypothesis, such a scientist is trying to draw a conclusion from the experiment.
The drawing of conclusion represents one of the significant steps in the scientific method. After observations have been made and hypothesis formulated, the next step is to test the hypothesis through experimentation. Experimentation involves gathering data and at the end of the day, the data are analyzed to see if it conforms with the hypothesis or otherwise.
If the data conforms with the original hypothesis, the hypothesis is accepted as being true, and if otherwise, such a hypothesis is subjected to further testing instead of being accepted.
"A birth in which the baby is surgically removed from the uterus, rather than traveling through the birth canal, is called"
Answer:
Cesarean section
Explanation:
a surgical operation for delivering a child by cutting through the wall of the mother's abdomen.