How many different elements are represented in the chemical formula?
CH4 + 202 → CO2 + 2H2O
A.7
B. 5
C.4
D.0.3
Answers
Related Questions
Which is a product of photosynthesis?
carbon dioxide
sugar
water
sunlight
Answers
Answer:
Sugar is a product.
Explanation:
Carbon dioxide, water, and sunlight is what is needed in order to do photosynthesis.
the earth’s_______and position relative to the________effects the lengths of_________and________.
*not multiple choice*
i need it asap. thanks!
Answers
distance
sun
day
night
The Earth's distance and position relative to the sun effects the lengths of day and night.
Between 1984 and 2003, scientists mapped the human genome, which means they determined the pattern of billions of genes that make a human a human. Originally, it took years to map a single person’s total genome. By 2014 multiple genomes could be mapped in one day.
What most likely allowed scientists to start mapping so much faster?
a change to Mendel’s law of dominance
more powerful computer technology
the discovery of how germs work
new scientists repeating gene experiments
Answers
Answer:
more powerful computer technology
Explanation:
It just makes sense lol
Answer:
B
Explanation:
edge 2020
Question 24 of 35
Which two statements describe the Mesozoic era?
A. Most of Earth's history took place within this time.
B. Plants began to colonize land during this era.
✓ C. It is also known as the Age of Reptiles.
D. It lasted from about 250 million years ago to 70 million years ago.
Answers
Answer:
C
Explanation:
it was the time to f the dinosaurs and some of the dinosaurs were reptiles
which elements of the animals health record should be transferred with the animal to the next production unit
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When transferring an animal to the next production unit, certain elements of the animal's health record should be transferred as well. These elements include:
1. Vaccination history: This includes information about the vaccines administered to the animal, including the type of vaccine, date of administration, and any booster shots given.
2. Medical treatments: Any medical treatments given to the animal, such as medication or therapies, should be recorded and transferred. This includes details about the treatment, dosage, and duration.
3. Disease history: Information about any diseases or illnesses the animal has experienced should be included in the health record. This helps the next production unit to be aware of the animal's health background and take appropriate preventive measures if needed.
4. Diagnostic test results: If any diagnostic tests, such as blood tests or imaging, have been conducted on the animal, the results should be included in the health record. This helps provide a comprehensive view of the animal's health status.
5. Parasite control: Records of any parasite control measures, such as deworming or external parasite treatments, should be transferred. This ensures that the next production unit can continue the necessary preventive measures.
By transferring these elements of the animal's health record, the next production unit will have important information about the animal's health history, enabling them to provide appropriate care and continue necessary treatments.
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REPOST ANSWER FAST PLEASE need help with this question
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The steps of the Calvin cycle into the correct order from top to bottom include:
D) Six carbon dioxide molecules combine with six 5-carbon molecules of RuBP to form twelve 3-carbon molecules of 3-PGA.
B) Rubisco converts ten G3P molecules into 5-carbon molecules of RuBP.
C) The chemical energy stored in ATP and NADPH is transferred to the 3-PGA molecules to form twelve G3P molecules.
A) Two G3P molecules leave the cycle to be used for the production of glucose and other organic molecules.
What is the Calvin cycle?A sequence of chemical processes known as the Calvin cycle, also known as the biosynthetic phase, dark reactions, or photosynthetic carbon reduction cycle of photosynthesis, transform carbon dioxide and hydrogen-carrier molecules into glucose.
The C3 cycle is another name for the Calvin cycle. The process through which sugars are formed out of the carbon from the carbon cycle.
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Assignment 1: Evidence for Evolution
Patterns based on observations of fossils:
[Example:] The observation made by Darwin that living species of armadillo can be found in the same area of Argentina where fossils of extinct glyptodonts were reported. Both species are very similar, with the glyptodon being like a giant armadillo. This observation can be explained if the two species are evolutionary related, thus belonging to the same lineage of species but with modifications.
Source: Charles Darwin’s Evidence for Evolution, by Dr. Niles Eldredge
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B. Patterns based on observations of similarities among species:
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C. Patterns based on observations regarding the distribution of organisms
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The distribution of organisms provides evidence for evolution through patterns observed in geographic distribution, endemic species on islands, and changes in distribution seen in the fossil record.
Observations regarding the distribution of organisms provide valuable evidence for evolution. One such pattern is the geographic distribution of species. Similar environments often contain distinct yet closely related species. This can be observed in different regions around the world.
For example, the marsupials in Australia, such as kangaroos, koalas, and wombats, show remarkable similarities in their reproductive and developmental characteristics. These similarities suggest a common ancestry and adaptive radiation in response to the unique Australian environment.
Another significant observation is the presence of endemic species on islands. Islands provide isolated habitats, allowing for unique evolutionary processes to occur. The Galapagos Islands, famously studied by Darwin, exhibit an array of species found nowhere else on Earth.
The finches he observed there had different beak shapes and sizes, each adapted for specialized feeding habits. This diversification is thought to have occurred through natural selection acting on a common ancestor.
Furthermore, fossil records indicate that the distribution of organisms has changed over time. For instance, the discovery of similar fossils in South America and Africa suggests that these continents were once connected, supporting the theory of continental drift and explaining the presence of related species in both regions.
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In which types of transport can molecules pass through a phospholipid membrane?
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Explanation: The simplest mechanism by which molecules can cross the plasma membrane is passive diffusion. During passive diffusion, a molecule simply dissolves in the phospholipid bilayer, diffuses across it, and then dissolves in the aqueous solution at the other side of the membrane.
The energy in many of those food particles is ultimately transferred into ______. A. Complex carbohydrates B. Glucose C. Proteins D. Lipids
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. What is the main difference between the outer core and the inner core of the Earth? The inner core is mostly solid iron, the outer core is mostly liquid nickel. The inner core is solid iron and nickel and the outer core is liquid iron and nickel. The inner core is cooler because it's solid and the outer core is hotter and liquid. The inner core is hotter and liquid and the outer core is cooler and solid.
Answers
Answer:
A) The inner core is mostly solid iron, the outer core is mostly liquid nickel
Explanation:
The outer core of the Earth is made up of liquid iron and nickel, while the inner core is solid due to the extremely high temperatures and pressures present there. Thus, option A is correct.
What is the major difference in earth core?The inner core's temperature is far higher than iron's melting point. The inner core isn't molten or even liquid, in contrast to the outer core.
The pressure surrounding the inner core, as well as the planet's atmosphere, keeps the iron from melting.
The inner core and the outer core make up the core, which is the Earth's innermost layer. The layer of heated liquid that surrounds the inner core is called the outer core, whereas the inner core comprises solid metal.
Therefore, The inner core is mostly solid iron, the outer core is mostly liquid nickel.
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Explain why the null hypothesis Upper H 0 : mu 1 equals mu 2 is equivalent to the null hypothesis Upper H 0 : mu 1 minus mu 2 equals 0. Choose the correct answer below. A. They are equivalent through algebraic manipulation. B. They are equivalent because the null hypothesis, Upper H 0, is always assumed to be true. C. Bydefinition, the null hypothesis is always equal to 0. Therefore, these hypotheses are equivalent. D. The values of mu 1 and mu 2 are equivalent in every population. Therefore, these hypotheses are equivalent.
Answers
The null hypothesis Upper H0: μ1 = μ2 is equivalent to the null hypothesis Upper H0: μ1 − μ2 = 0 because they are equivalent through algebraic manipulation (Option A).
A null hypothesis is a hypothesis that is tested for possible rejection under the assumption that it is true. It is generally denoted by H0. A null hypothesis usually states that the two populations under consideration are the same or equal.
Algebraic manipulation is the technique of manipulating algebraic expressions to simplify or prove a mathematical relationship. The null hypothesis Upper H0: μ1 = μ2 can be transformed by subtracting one population mean from the other to get H0: μ1 − μ2 = 0. So the null hypothesis Upper H0: μ1 = μ2 is equivalent to the null hypothesis Upper H0: μ1 − μ2 = 0.
Thus, the correct option is A.
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What is gray matter made of
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Answer:
Gray matter consists primarily of neuronal cell bodies, or soma. This a spherical structure that houses the neuron's nucleus.
Which of the following would be considered biologically important free radicals? Select all that apply
O2
NO2
NO
Answers
The biologically important free radicals are: NO (Nitric oxide). So the correct option is C.
NO (nitric oxide) is considered a biologically important free radical. It is a highly reactive molecule that acts as a signaling molecule in many physiological processes in the body, including regulation of blood vessel dilation, immune response, and neurotransmission. It is involved in various cellular signaling pathways and plays a role in regulating numerous physiological and pathological processes in the body.
O2 (oxygen) and NO2 (nitrogen dioxide) are not considered biologically important free radicals. Oxygen (O2) is a stable molecule that is essential for respiration and energy production in cells, while nitrogen dioxide (NO2) is a toxic air pollutant that can be harmful to human health when present in high concentrations. Free radicals are highly reactive molecules that have an unpaired electron, and they can damage cellular structures and biomolecules if not properly regulated by antioxidant systems in the body.
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Question- Which statement accurately describes the location and charge of electrons in an atom?
———
Answer- D The electrons are outside the nucleus and have a negative charge.
Answers
Answer:
you already answered it I'm confused lol
which duct transports bile to and from the gallbladder?
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The common bile duct takes bile from the liver to the gallbladder, and the cystic duct takes bile out.
Common bile duct :The common bile duct is formed when the common hepatic duct and the cystic duct from the gallbladder meet. Bile is produced in the liver and transported to the gallbladder, where it is stored, via the common hepatic duct and the cystic duct. Bile travels from the gallbladder to the small intestine via the common bile duct and pancreas during food digestion.
Which structure transports bile to the gallbladder?The left and right hepatic ducts join to form the common hepatic duct, which is where bile exits the liver. The common bile duct is formed when this duct joins a duct connected to the gallbladder called the cystic duct.
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8. Igneous rocks that form when lava cools under the crust inside Earth, rather than on the surface, are called ________ Igneous rocks.
9. Rocks produced when pieces of other rocks, plant and animal matter, or dissolved minerals collect to form rock layers are called _________ rocks.
10. Igneous rocks that form when lava cools on Earth's surface are called ________ igneous rocks.
11. Detrital rocks are a kind of ____
rock made of grains from minerals or other rocks that have moved and been deposited in layers.
12.
____ rocks form from evaporation of seawater or from other chemical
processes.
13. Metamorphic rocks that have distinct bands of minerals that have been heated and squeezed into parallel layers are called ______ rocks.
14. ________ metamorphic rocks, such as quartzite, marble, and soapstone, do
not have distinct layers or bands.
15. The ________ shows how rocks are recycled from one type to another.
Answers
The correct answers to the questions are, in order, intrusive, sedimentary, extrusive, sedimentary, chemical, foliated, non-foliated and rock cycle.
Answer to Multiple choice8. Igneous rocks that form when lava cools under the crust inside Earth, rather than on the surface, are called INTRUSIVE Igneous rocks.
9. Rocks produced when pieces of other rocks, plant and animal matter, or dissolved minerals collect to form rock layers are called SEDIMENTARY rocks.
10. Igneous rocks that form when lava cools on Earth's surface are called EXTRUSIVE igneous rocks.
11. Detrital rocks are a kind of SEDIMENTARY rock made of grains from minerals or other rocks that have moved and been deposited in layers.
12. CHEMICAL rocks form from evaporation of seawater or from other chemical processes.
13. Metamorphic rocks that have distinct bands of minerals that have been heated and squeezed into parallel layers are called FOLIATED rocks.
14. NON-FOLIATED metamorphic rocks, such as quartzite, marble, and soapstone, do not have distinct layers or bands.
15. The ROCK CYCLE shows how rocks are recycled from one type to another.
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2. Evaluate Claims A student claims that the four types of macromolecules make up all of
important compounds of the human body. Provide evidence and reasoning to support or
refute this claim.
Answers
Answer:
Yes, our body is made up of four Macromolecules.
Explanation:
Yes, the claim of the student is right that Macromolecules such as carbohydrates, lipids, proteins, and nucleic acids makeup the human body because all the cells are made up of carbohydrates, lipids, proteins, and nucleic acids. We know that our body is made up of cells so we can say that our body is made up of four Macromolecules. For example, our muscles are made up of protein, the fats present in our body are the lipids, carbohydrates are stored in the form of glycogen In liver and nucleic acids are present in the form of DNA and RNA.
The four main macromolecules in the body are; carbohydrates, proteins, nucleic acids and lipids.
Macormolecules are those large biological molecules that play important roles in the body. The human body is filled with these macromolecules and they perform functions such as mechanical support, protection of organs, insulation etc.
There four main types of macromolecules in the body;
carbohydrates. lipids. proteins. nucleic acids.Theses macromolcules are the basis of all the complex molecules found in the human body. For instance, steroids are composed of lipids and they play very important roles in hormones in the body.
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What would happen if humans were ectothermic instead? How would your life change?
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Ectothermy, which is the dominant form of life on Earth, allows for larger population sizes because an organism of a given mass can be sustained with less energy over a given period of time. Humans would require fewer resources per person if they were ectothermic, at least in the area of food.
If humans were ectothermic then our life would have completely changed. Ectothermic humans never would have invented agriculture, tools, and other things. But for the purposes of argument, just assume that humans did develop those kinds of technologies in the discussion that follows.
Since ectotherms are less active than endotherms, they likely have less spare cognitive time for unimportant thoughts like those that might inspire people to invent and discover new things.
Keeping this in mind, evolution could not have occurred in the same manner if humans had always had cold blood. Without the development of our hunter-gatherer instincts, we most definitely wouldn't be the social species we are today. Instead, we would have all waited around for our next meal to arrive, using all of our meager energy to try to catch it in one strike, just like actual reptiles do. For maximum effectiveness, it explains why crocodiles can be seen idly waiting in the water for hours on end.
We have such slow metabolisms that no one would ever go hungry. Because ectothermic humans would essentially all be lazy, antisocial lizards, we also wouldn't likely care if anyone went hungry in the first place. And if humans had cold blood, that is what would occur.
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Which statement about cell structures is accurate
Answers
Answer:
cell of a tissue have similar structure
Explanation:
the cell is the basic structural functional and biological unit of all know organisms there are different shapes of the cells
Behavioral ecology is best described as the study of the:________
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Behavioral ecology is best described as the study of the behavior of animals and their interactions with their environment.
It focuses on the evolutionary and ecological causes of behavior, and how behavior influences the fitness and survival of individuals, populations, and species. In other words, it examines how an animal's behavior helps it to adapt to and interact with its environment, and how these behaviors have evolved over time. Behavioral ecology encompasses a wide range of topics, including mating behavior, parental care, social behavior, foraging, and communication.
One of the key areas of focus in behavioral ecology is the study of animal communication. Animals use a variety of cues, such as visual, auditory, and chemical signals, to communicate with one another. By studying animal communication, behavioral ecologists can gain insights into the social dynamics of different species, as well as the mechanisms that underlie the evolution of communication strategies.
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the level of biological organization studied by cell biologists is the
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The level of biological organization studied by cell biologists is the Cell
Cell biology (also known as cellular biology or cytology) is the study of the structure, function, and behavior of cells. Cells are the building blocks of all living beings. A cell is the fundamental unit of life, responsible for organisms' survival and function.
Cell biology is the study of cells' structural and functional components. Cell biology includes both prokaryotic and eukaryotic cells and comprises several subtopics such as cell metabolism, cell communication, cell cycle, biochemistry, and cell composition. Cells are studied utilizing a variety of microscopy methods, cell culture, and cell fractionation.
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If a farmer was estimating yield for a grain crop, what variables would he or she need to make a calculation?
A. cost of herbicide per ft2, seeding rate, estimated storage space cost of herbicide per ft, 2, , seeding rate, estimated storage space
B. standard kernel weight, acres of planted field, insurance price standard kernel weight, acres of planted field, insurance price
C. cost of seeds per ft2, acres of planted field, fertilizer weight cost of seeds per ft, 2, , acres of planted field, fertilizer weight
D. acres of planted field, kernels per ft2, standard kernel weight
Note: Here is the resource to finding the answer -> Estimating yields and calculating yield involve numerous equations, depending on the crop in question, and many different methods exist. For grain crops, a farmer could count the number of viable kernels in a square foot. This number would then be multiplied by a standard 1,000 kernel weight. Finally, this number should be multiplied by the number of acres on a farm. One of the most crucial measurements a farmer needs to consider is planting rate. Planting rate, also known as seeding rate, refers to the number of plants sown in a certain area, usually calculated in hectare or acres, to ensure a maximum yield. Intuitively, one would think that the more plants planted, the higher the yield. But as we see from the example of SRI at the beginning of this lesson, planting rates can be counterintuitive. Planting fewer plants can mean growing larger, healthier plants that result in more grains, beans, or seeds. Needless to say, a farmer’s crop yield is predicated on his or her initial planting rate. <-
Answers
The parameters that the farmers needs to estimate the yield is acres of planted field, kernels per ft2, standard kernel weight.
What is important to estimate the yield for a grain crop?We know that the yield has to do with the quantity of the crop that one has to obtain in a planting season. It is often important that the farmer is able to estimate how much the produce of the grain would be.
However, there are some parameters that must go into the calculation of the estimate of the yield of the crops and these would help the farmer to know how to go about the planting season.
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The parameters that the farmers needs to estimate the yield is acres of planted field, kernels per ft2, standard kernel weight.
Explanation:
What is the complimentary DNA sequence
for each of the following:
a) 5' TCGTAGGCT 3'
b) 3' CCGAATGCAT 5'
Answers
Answer:
a) 3' AGCATCCGA 5'
b) 5' GGCTTACGTA 3'
Explanation:
Based on complementary base pairing rules, T pairs with A, whereas C pairs with G.
In addition, because complementary strands run in complementary opposing directions, if the original sequence is in the 3' → 5' direction, our new strand is in the 5' → 3' direction, and the opposite for the original sequence that starts in the 5' → 3' direction.
Which bone-associated structure is continuous with the capsule of the joint, adding strength and helping to stabilize the joint?
Answers
The ligaments are the bone-associated structure that is continuous with the capsule of the joint, adding strength, and helping to stabilize the joint.
In the skeletal system, bones serve to provide support and stability to the body, protect internal organs, and work with muscles to facilitate movement. In addition to these functions, bones also contribute to the structure of joints and their stability. Capsule of the joint is a thin fibrous material that surrounds the bones of a joint.
This structure is responsible for keeping synovial fluid inside the joint, which lubricates the joint and reduces friction between the bones. The capsule also provides some degree of stability to the joint.
One of the structures associated with bones that is continuous with the capsule of the joint, adding strength and helping to stabilize the joint is ligaments.
Ligaments are fibrous connective tissues that connect bone to bone.
They are strong and elastic, and they can withstand a lot of tension and stretching. Ligaments can be found at the ends of bones, where they attach to other bones to form joints.
They help to hold the bones in place, and they prevent the bones from dislocating or moving too far out of their normal position.
In conclusion, the ligaments are the bone-associated structure that is continuous with the capsule of the joint, adding strength, and helping to stabilize the joint.
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Explain how a close relative of an African plant came to be living in the tropical pacific?
Answers
Africa and the rest of the continents were once connected, creating a super continent called Pangea. Africa sat right above parts of South America so they had similar weather conditions and life forms. However, continental drift happened it led to the continents being split apart, separate the organisms on it.
I hope this helps.
Trevor is a lawyer who plans to include hair evidence samples in an upcoming trial. What is the most accurate way to test the sample to confirm a match?
Answers
Answer:
DNA Testing
Explanation:
Investigators are considering using hair evidence at an upcoming trial. What is TRUE about using two pieces of hair evidence in a criminal trial? The only way to prove a match of two distinct samples is to use DNA testing. Using hair evidence is the easiest way to determine if a suspect was at a crime scene.
How do you think a period of hot summers will affect the rabbit population?
Answers
Answer: because i dont think rabbits will come out because its to hot and lots of people may be out so they might get scared
Explanation:
A mutation of DNA by the addition or removal of a single nitrogen-containing base is known as a __________mutation which shifts the rest of the DNA sequence.
A) substitution
B) Crossing over
C) Inversion
D) Frameshift
Answers
hope this helps!
A mutation of DNA by the addition or removal of a single nitrogen-containing base is known as a frameshift mutation which shifts the rest of the DNA sequence. Thus, the correct option is D.
What is Frameshift mutation?A frameshift mutation is a genetic mutation which is caused by the indels of a number of nucleotides in a DNA sequence that is not divisible by the number three. Due to the triplet nature of gene expression by codons, the insertion or deletion of a nucleotide can change the reading frame, resulting in a completely different translation from the original translation.
Frameshift mutations are of two types: Insertion mutations and deletion mutations. Both of these mutations have a similar overall impact, shifting the translational reading frame out of the alignment and producing a random amino acid sequence from the original sequence.
Therefore, the correct option is D.
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Each example of rock weathering can be categorized as either physical weathering or chemical weathering. Drag each item to the correct location. (2 points)
Answers
Answer:
Here are the answers
Explanation:
Physical Weathering:
Wind blowing off bits of rock over time
A prairie dog burrowing a hole in a rock
An insect digging a hole in rock for its home
Chemical Weathering:
Limestone in rock dissolving when acid rain flows across it
Bits of iron in rock rusting when exposed to oxygen and water
certain metals in rock oxidizing by exposure to air
I hope this is right
Muscle fatigue occurs when the cells run out of oxygen. Without oxygen present, the animal_________ switches to ___________.
Answers
Oxygen deprivation in the cells leads to muscle tiredness. Because oxygen is the last electron acceptor in the chain, mitochondria depend on it to function.
What are mitochondria and what do they do?
The majority of the chemical energy required to drive a cell's metabolic operations is produced by mitochondria, which are lattice cell organelles (mitochondrion, singular). Adenosine triphosphate, a tiny molecule, serves as a storage container for the chemical energy generated by the mitochondria.
Why is the powerhouse of the cell the mitochondria?
Because they are in charge of cellular respiration, the mitochondria are referred to as the "powerhouse" of the cell. Adenosine triphosphate, a type of energy, is released (ATP). It serves as the cell's energy currency.
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