Answer:
Yes.
Explanation:
Kreb's Cycle is considered as the central wheel of metabolism because the fuel molecules are oxidized ultimately within the Krebs Cycle and its intermediates are used for various biosynthetic pathways. The main function of the Kreb's cycle is to produce electron carriers that can be used in the cellular respiration for producing energy molecules in the form of ATP. without Krebs's cycle, the cell produces only two ATP molecules which very low.
How can a chloroplast, a structure found in plant cells but not in animal cells, provide energy for BOTH plants and animals?
Answer:
Chloroplasts are found in plant cells only because chloroplasts contain chlorophyll which is essential for photosynthesis. Chlorophyll traps sunlight and uses it to prepare food for plants by the process of photosynthesis.
How does a planet's distance from the Sun affect its surface temperature and the length of its orbit (year)?
PLS IS FOR TODAYY
HELP MEE PLSS
Answer: In general, the surface temperatures decreases with increasing distance from the sun. Venus is an exception because its dense atmosphere acts as a greenhouse and heats the surface to above the melting point of lead, about 880 degrees Fahrenheit (471 degrees Celsius)
Explanation:
I Hope This Helps You! Have a Great day! ^v^
Researchers Robert Briggs and Thomas King used ultraviolet radiation to destroy the nuclear DNA of frog eggs. Nuclei from adult skin cells and from tadpole-gut epithelial cells were cultured and then injected into eggs that had their nuclei destroyed. The results were tadpoles. Which conclusion is supported by the data from this investigation?
Answer:
Nuclei of gametes and somatic cells are similar to each other in its function.
Explanation:
The conclusion of the data is that the nuclei of gametes and somatic cells are similar to each other because both performs same function in the cell i.e. regulates activities of the cell. The nuclei of somatic or skin cells work efficiently in the egg cells due to similar composition and structure of nuclei that performs similar function in the cell so that's why injection of skin cell's nuclei into egg cells results the same i.e. formation of tadpoles.
What experiment is left overnight what would be the observation fresh potato in sugar solution and water
PLEASE HELP!
What claim or claims can you make about the impact of climate change on sea level rise?
What is your evidence for this claim?
Answer:
POLUTION
Explanation:
Answer:
I can make the claim that climate change and the sea level rise have a positive correlation. The graph shows that as the impact of climate change increases so does the sea level conveying that they are positively correlated.
Describe three ways that the growth of suburban populations would have affected land and aquatic ecosystems around cities.
Answer: The three ways the growth of suburban populations( urbanisation) would affect the environment include:
--> Insufficient water availability,
--> Waste-disposal problems, and
--> High energy consumption.
Explanation:
The growth of suburban population is also called URBANISATION. This is defined as the rapid growth of an urban area which occurred due to the movement of individuals from rural areas into the urban area. There are different reasons why individuals migrate to urban areas these include:
--> for a better access to health care services
--> for more education opportunities
--> To combat the problems of unemployment and
--> for better participation in political and social activities.
The three ways the growth of suburban populations( urbanisation) would affect the environment include:
--> Insufficient water availability: the increase in the urban population creates a high demand for water use both for industrial and domestic uses.
--> Waste-disposal problems, and
--> High energy consumption.
Answer:
Deforestation, Water pollution, Introduction of invasive species
Explanation:
For ages, human beings have been altering the natural ecosystems and causing irreparable damages to nature. Development drove to an unmeasurable advance over new unpopulated areas.
Some of the principal human activities responsible for biodiversity loss are
• the uncontrolled use of unrenewable resources,
• overexploitation of renewable resources;
• land destruction for the mining industry, farming and cattle industry, buildings, and other infrastructures;
• the unplanned advance of cities, and opening of new roads to connect those cities.
All of them involving
deforestation and fragmentation of natural landscapes; water, air, and soil pollution, species loss, and reduction of biodiversity. Introduction of invasive species.And the growth of suburban populations is a frequent human activity causing an impact on nature. To mention a few ways in with this action might affect ecosystems, we can name the followings,
Deforestation:
The growth of suburban populations is indefectibly related to deforestation. New open areas are needed for buildings, roads, and service establishments, such as natural gas or water ducts, light, and others. There hardly exists planning about the cities´ growth and conscientious conservation of nature.
Water pollution:
Water is severely polluted while constructing buildings and roads. The wastes of materials used for construction, oil coming from transport and machinery, human wastes, among other sources of contamination reach the rivers or lakes, polluting them and altering the natural equilibrium.
Introduction of invasive species:
It is very common to use ornamental vegetable species, proceeding from other areas or countries to arrange the gardens, streets, and parks. These species might become invasive and uncontrollable, causing severe damage in native endemic species by competing for resources. The whole ecosystem structure changes.
Deforestation, water pollution, and the introduction of invasive species are some of the causes of biodiveristy loss.
The real length of one villus is 0.8 mm
Calculate the image length if the villus is viewed at a magnification of 20
Use the equation:
size of image
magnification =
size of real object
[3 marks]
Answer: 16 mm
Explanation:
If I understood the given equation correctly, it could be rewritten as:
size of image = size of real object * magnification
Plug in the given values, and we get
size of image = 0.8 * 20 = 16 (mm)
If anyone has all the answers to The Universe Unit Review Practice please moment them
Answer:
C. a distant luminous object travels rapidly away from an observer.
Explanation:
Option C is the correct answer.
Redshift is actually observed when a distant luminous object travels rapidly away from an observer.
In redshift, observers actually see an object that is travelling away from them and it has longer wavelength. The opposite is the blueshift where observers see a light traveling towards them and shifted to shorter wavelength.
In astronomy, redshift takes place when the object's visible light travels towards the red end of the spectrum.
A red shift is observed when a luminous object is moving rapidly away from the observer.
A red shift refers to a shift to a longer wavelength. It is observed when a luminous object is moving away from an observer. This is different from a blue shift where the luminous object is moving towards the observer.
Hence, in astronomy, a red shift is observed when a luminous object is moving rapidly away from the observer.
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How did the insertion of a nucleotide in a DNA sequence result in a phenotypic change in an organism
Answer:
if the nucleotide insertion occurs within the coding region of a gene (frameshift mutation), then it will change the open reading frame (ORF) of the resulting protein and thus also will alter the phenotype of the individual
Explanation:
A mutation is any change in the DNA sequence of the genome of a cell/organism. A point mutation is a genetic mutation where a single nucleotide is inserted, deleted or changed from the original DNA sequence. The insertion of a single nucleotide in the coding region of a gene is called frameshift mutation since this nucleotide base shifts the way the DNA sequence is read. A frameshift mutation changes the meaning of the codons that follow the inserted nucleotide base and thereby protein function is generally lost, thereby also affecting the resulting phenotype associated with this protein.
how many molecules of glucose are produced in photosynthesis
Answer: One molecule of glucose (C6H12O6) and six molecules of oxygen (O2)
Explanation:
Six molecules of carbon dioxide (CO2) combine with six molecules of water (H2O) in the presence of light energy. This produces one molecule of glucose (C6H12O6) and six molecules of oxygen (O2)
How could the aquifer around the Los Angeles are in California be susceptible to an impact by a Tragedy of the Commons?
Answer:
Due to over-pumping of water.
Explanation:
The aquifer around the Los Angeles are in California could be susceptible to an impact by a Tragedy of the Commons because the people used more water than the aquifer receives. The excess use of water from the aquifer through the well causes depletion of water which results in the shortage of water to fulfill the needs of existing population so it is wise to use water efficiently and used lower or equal water the aquifer receives in order to maintain level of aquifer.
what is endocrine system
Answer:
The endocrine system is the collection of glands that produce hormones that regulate metabolism, growth and development, tissue function, sexual function, reproduction, sleep, and mood, among other things.
Can someone help me answer this please
Answer:
first one is C and the second one is A
Explanation:
please mark brainliest
A radioactive material has a half-life of 30 days. You begin with 4 grams of radioactive material.
a. How much of the original is left unchanged after 90 days?
b. After 120 days?
Give explanation. Don't go.ogle.
Answer:
a. 0.5 grams b. 0.25
Explanation:
Just use the half-life formula(I linked it below)
a. 4(1/2)^90/30=1/2
b. 4(1/2)^120/30=1/4
A. 0.5 grams is left unchanged after 90 days.
B. 0.25 grams is left unchanged after 120 days.
What is Half life?The half-life of a radioactive isotope is defined as the time it takes for half of the radioactive isotope to decay. It is stable in specific radioactive isotopes. It is unaffected by circumstances. It is also independent of the initial amount of that isotope.
It can be find out by this formula:-
[tex]N=N_o (1/2)^n\\\\[/tex]
where, N= quantity of the substance remaining
[tex]N_o[/tex]= initial quantity of the substance
n= number of half lives
For above given example,
Given that radioactive element X has a half-life 30 days
Hence the number (n) of half-lives in 90 days
n=90/30
n=3
The amount N of radioactive element X left after n=3 half-lives with initial amount [tex]N_o[/tex]=4 gm
[tex]N=N_o (1/2)^n\\\\\\N= 4 (1/2)^3\\N= 4(1/8)\\N= 0.5 gms\\\\\\[/tex]
For 120 days, n=120/30
so, n= 4
Then,
[tex]N=4(1/2)^4\\N=4(1/16)\\N=0.25 gms[/tex]
Thus, A. 0.5 grams is left unchanged after 90 days.
B. 0.25 grams is left unchanged after 120 days.
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HELP PLEASE 20 points
Answer:
Answer 10
Explanation:
The German physician Robert Koch provided evidence to support the germ theory of infectious disease. Koch isolated bacteria from a cow with anthrax then injected the bacteria into a healthy mouse. To support germ theory, what must have happened to the healthy mouse?
A: it became sick.
B: it spread smallpox.
C: it produced antibiotics.
D: it became immune to viral infections.
The chromosome are arranged to show
ll
13
O A. homologous pairs
O B. tetrads
OC. independent assortment
O D. nucleotides
Answer:
D. nucleotides
i'm not sure
In humans, three alleles affect blood type. The A and B alleles are codominant, and the O allele is recessive. An AB blood type father has children with an A blood type mother (genotype AO). What are the chances that their children will have AB type blood? Choose 1 answer: Choose 1 answer: (Choice A) A 25\%25%25, percent (Choice B) B 50\%50%50, percent (Choice C) C 75\%75%75, percent (Choice D) D 100\%100%100, percent
Answer:
The correct answer is - A. 25%.
Explanation:
In humans, the blood group system is known as the ABO system where blood groups A and B are codominant and O blood group is recessive. The genotype of the A blood group could be AA or AO similarly for the B blood group genotype would be BB or BO, for the O blood group OO whereas for the AB blood group both A and B alleles should be present together.
Cross: AB blood type father with an A blood type mother (genotype AO)
Gametes: A, B and A, O
Punnett square:
A B
A AA AB
O AO BO
Here, there are 25% chances of AB blood group offspring 50% for the A blood group (AA and AO) and 25% B blood group (BO).
this is a real question, dont take it out of context GUYS. What is the white sticky stuff called that comes out of that plant that bugs die from if they eat? i also forget the name of the plant smh.
Answer:
Mealybugs will commonly leave a white residue on a plant's leaves that resembles cotton. You will find this residue mostly on the stems and leaves. ... You may also find that the plant has a sticky residue on it. This is honeydew and is secreted by the mealybugs.
Explanation:
Answer: I d k
Explanation:
WILL GIVE BRAINLIEST IF RIGHT
1. Rank the test tubes in order of greatest amount of digestion to
least amount of digestion. For each tube, explain why it would
have exhibited that that level of digestion.
2. How could the experiment be modified to further test human
digestion actions? What variables would you change? What would
you keep the same?
3. In which test tube was the activity most like that of a real human
stomach? Explain.
Answer:
Los alimentos son nuestro combustible y sus nutrientes proporcionan a las células del cuerpo la energía y las sustancias que necesitan para funcionar. Pero, antes de que los alimentos puedan hacer eso, los debemos digerir, descomponiéndolos en trozos pequeños para que nuestros cuerpos los puedan absorber y aprovechar.
El primer paso del proceso digestivo tiene lugar antes de que ni tan siquiera probemos la comida. Con solo oler una tarta de manzana casera o pensar en lo delicioso que va a saber un tomate maduro, empezamos a salivar, y el proceso digestivo se inicia preparándonos para ese primer bocado.
Casi todos los animales tienen un sistema digestivo en forma de tubo, donde los alimentos:
entran por la boca
pasan por un largo tubo
salen del cuerpo en forma de heces (caca) a través del ano
A lo largo del camino, se descomponen en moléculas diminutas para que el cuerpo pueda absorber los nutrientes que necesita:
Las proteínas se deben descomponer en aminoácidos.
Los almidones se descomponen en azúcares simples.
Las grasas se descomponen en ácidos grasos y glicerol.
Los residuos que el cuerpo no puede aprovechar son los que salen del cuerpo en forma de heces.
Explanation:
Which of the following agricultural products requires the least amount of energy?
beef cattle
dairy cows
wheat
both (a) and (b)
Which of the following is true about plants and cellular energy?
A.
Plants use light energy to produce food molecules during photosynthesis and obtain cellular energy from the bonds of these food molecules during cellular respiration.
B.
Plants use light energy to produce food molecules during cellular respiration and to obtain cellular energy from the bonds of these food molecules during photosynthesis.
C.
Plants can use light energy to produce food molecules or to obtain cellular energy from the bonds of these food molecules during cellular respiration.
D.
Plants can use light energy to produce food molecules or to obtain cellular energy from the bonds of these food molecules during photosynthesis.
Answer:
A.
Plants use light energy to produce food molecules during photosynthesis and obtain cellular energy from the bonds of these food molecules during cellular respiration.
answer:
A. plants use light energy to produce food molecules during photosynthesis and obtain cellular energy from the bonds of these food molecules during cellular respiration.
explanation:
photosynthesis is the process through which plants synthesize food with light energy (photo-)photosynthesis is the process by which organisms, such as green plants, use light energy to produce foodcellular respiration is the process by which living things, including both plants and animals, obtain energy from the bonds of food moleculestherefore, plants use light energy to produce food molecules during photosynthesis, and obtain cellular energy from the bonds of these food molecules during cellular respirationAn elderly woman finds that her back hurts almost all the time. Her doctor tells her it is because she has osteoporosis. Why might a disease that causes her bones to thin make her back hurt?
A) The bones of her vertebrae have lost calcium and crumbled enough to begin pinching the nerves leaving her spinal cord.
B) The muscles in her back are slowly destroyed as the bones of her vertebrae get thinner and collapse.
C) The motor neurons inside the bones of her vertebrae send pain messages to her brain as the bone dissolves.
D) Her bones cannot support her skin and muscles adequately, and so the muscles cramp and hurt.
Answer:
I think no b is the right answer
Answer:
the answer is a
Explanation:
Select the correct answer from the choices provided in the underlined sections
A plant grown in low light will have (lighter / darker) flower color while a plant grown in bright light will have a (light / darker) flower color.
Answer:
darker and lighter
Explanation:
Hope it helps :)
A plant grown in low light will have darker flower color while a plant grown in bright light will have lighter flower color.
The plants which grow in high light intensities are called?The plants which have the ability to survive in the high intensity of sunlight they are called heliophytes.
Prosopis, Betula, Teak, etc are the examples of heliophytes.The plants which grow in low light intensities are called Sciophytes. Example includes Aegle, Nycanthes.
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If there are only a few remaining members of an insect species living in one area, which would most likely cause this species to become extinct?
Answer:
introduction of new predators to the insects.
Answer:
the introduction of new predators to the insects’ environment
Explanation:
a cross between a white horse and a chesnut horse produce all light brown horses
Answer:
Incomplete dominance
Explanation:
- Eijiro <3
Answer:
incorrect.
Explanation:
there is a possibility. but in reality color does not effect the foal.
My Friesians grandfather was an Akhal teke that was gold. He gave birth to all black offspring as you can see in the attachment.
Which of the following is an area of authority in a design?
O Tension
O Dominance
O Accent
O Contrast
Which new animal adaptation may be favored if average
temperatures in a temperate forest decreases by 25
degrees C over 1500 years?
Answer:
If the average temperatures of temperate forests fell by about 25ºC during the period of 1500 years, the natural modification of the animals that would be favored would be that which allows an adaptation to the new climatic circumstances by the fauna of said forests, that is , to the notable drop in temperature. Thus, for example, animals would develop more voluminous furs, which would allow them to heat their bodies in a better way.
PLEASE ANSWERR
Which of the following is the independent variable for a controlled experiment
investigating how waste production affects a certain person's ecological
footprint?
A. Opinion the person has about environmental impact
B. Measurement of the amount of waste produced
C. Identification of the person
D. Calculation of resulting ecological footprint
Answer: Measurement of the amount of waste produced.
Explanation:
Measurement of the amount of waste produced is the independent variable for a controlled experiment in this case. Therefore, the correct statement is option B.
What is the independent variable?The independent variable is the variable that can be changed in a controlled experiment. In this case, the researcher can manipulate the amount of waste produced followed by observation of its effect on the ecological footprint.
The researcher can manipulate the amount of waste by changing the factors such as the type of waste produced, recycling facilities available, etc. under controlled conditions.
Once the independent variable is manipulated, the researcher can observe its effect on the dependent variable. In this case, the ecological footprint of the individual is a dependent variable. The dependent variable is the variable that can be affected by the independent variable and is measurable.
Therefore, the measurement of the amount of waste produced is the independent variable for a controlled experiment.
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What is the ultimate role of ecological succession in an environment
Answer:
The stable, end stage of ecological succession in which the plants and animals of a community use resources efficiently and balance is maintained by disturbances such as fire. The ultimate goal of ecological succession. After a natural disaster and continues until a climax community is reached.
Explanation:
The ultimate role of ecological succession in an environment is to reach the equilibrium in an ecosystem.
What is Ecological Succession?This event involve in the steady and gradual change in a species of a given area with respect to the changing environment is called as ecological succession.
The changes are inevitable process where all biotic components of the ecosystem keep up with the changes in our environment.
This process ultimately reach equilibrium in the ecosystem and the community that achieves this referred as a climax community, where some species increase in number and others decrease.
The communities that undergo changes sequentially in an area is called sere, so it is also called as seral stage or seral community.
Evolution has taken place simultaneously with that of ecological succession, so all the communities we observe are the result of ecological succession.
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