A graph of atmospheric carbon dioxide concentration over time is shown below. Scientists are investigating the cause of the large increase in atmospheric carbon dioxide concentration since about 1800. Which of the following provides the best explanation for the increase?
-eruptions of large volcanoes
-use of fossil fuels by human
- natural fluctuations of climate
-photosynthesis by phytoplankton
Answers
Answer:
the answer is B the use of fossil fuels by humans have a great day!
Explanation:
Related Questions
Sit at a dable or desk to copmplete the experiment. You will need a wooden pencil, a piece of paper, and the stopwatch feature of your cell phone. The time to write one word will be measured in seconds, using your dominant hand and non-dominant hand for comparison. Toss a coin (or simulate a toss) to determine whether your dominant hand (heads) or your non-dominant hand (tails) is measured first. 1. Draw two rectangular boxes, each 4.5 inches wide and 1 -inch tall (as shown above). 2. Measure the time it takes to print in lowercase the word "prefatory" as large as possible and neatly inside the first box, with the hand chosen by the coin toss. 3. Repeat with the other hand in the second box and record both times to the nearest tenth of a second. 4. Record the results of each of your SIP group mates as well in a table like the one shown below. Data Collection Sit at a table or desk to complete the experiment. You will need a wooden pencil, a piece of paper, and the stopwatch feature of your cell phone. The time to write one word will be measured in seconds, using your dominant hand and non-dominant hand for comparison. Toss a coin (or simulate a toss) to determine whether your dominant hand (heads) or your non-dominant hand (tails) is measured first. 1. Draw two rectangular boxes, each 4.5 inches wide and 1 -inch tall (as shown above). 2. Measure the time it takes to print in lowercase the word "prefatory" as large as possible and neatly inside the first box, with the hand chosen by the coin toss. 3. Repeat with the other hand in the second box and record both times to the nearest tenth of a second. 4. Record the results of each of your SIP group mates as well in a table like the one shown below. Design of Experiment 1. What type of experiment is this?
Answers
This experiment is a comparative experiment.
In a comparative experiment, two or more conditions are compared to determine their effects or differences. In this case, the experiment aims to compare the time it takes to write a specific word using the dominant hand and the non-dominant hand. The participants will measure the time it takes to print the word "prefatory" as large and neatly as possible inside two rectangular boxes. They will perform this task twice, once with the dominant hand and once with the non-dominant hand. The results will be recorded and analyzed to compare the writing speeds between the two hands.
Comparative experiments are often used to investigate the impact of different variables or conditions on a specific outcome. By comparing the performance or results of different conditions, researchers can draw conclusions about the effects of those variables. In this experiment, the goal is to determine if there is a significant difference in writing speed between the dominant and non-dominant hand.
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PLS HELP !!! DUE TONIGHT AT MIDNIGHT
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Before designing a solution to protect an estuary, the conservation group should gather the following two pieces of information: Ecological Characteristics, and Threat Assessment.
1. Ecological Characteristics: The conservation group needs to understand the specific ecological characteristics of the estuary.
This includes information such as the biodiversity present, the types of habitats within the estuary, and the species that rely on the estuary for their survival.
2. Threat Assessment: It is crucial for the conservation group to assess the specific threats that the estuary is facing. This includes evaluating the extent and impact of invasive species.
The existing human structures or activities that are affecting the estuary, the level of pollution and its sources, and the potential consequences of climate change on the estuary's ecosystem.
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the two cell organelles that have similar function to the respitory and the alveoli
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Mitochondria
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Which of the following theories concerning global climate change is the most widely accepted? a. Changes in the global climate will lead to an increase in extreme weather and flooding. b. Global climate is changing due to burning of fossil fuels and deforestation. c. Global climate change will happen rapidly. d. Extra carbon dioxide and global warming will be beneficial. Please select the best answer from the choices provided A B C D
Answers
Answer:ANSWER IS OPTION 'B'
Global climate is changing due to burning of fossil fuels and deforestation.
Answer:
B is the correct answer
Edg2020
Help? You are studying an outcrop where the lower layer is limestone and the layer directly on top of the limestone is sandstone. Near the bottom of the sandstone layer are small, weathered pieces of limestone entirely contained within the sandstone. Explain how these pieces of limestone came to be contained within the sandstone.
Answers
Answer:
Due to mixing of particles present in the upper layer of limestone with sandstone during deposition.
Explanation:
The parent layer was limestone layer which is older than sandstone layer. This sandstone layer spreads on the limestone layer because of wind. The wind moves these sandstone from other region and their deposition occurs on the limestone layer. During deposition of sandstone, some particles of limestone which are present at the surface mixes with the sandstone so that's why in sandstone layer, small and weathered pieces of limestone are present.
What is an advantage of using models to represent the carbon cycle?(1 point) can represent an entire system at once can represent an entire system at once can collect data on the amount of carbon in the atmosphere at a specific time can collect data on the amount of carbon in the atmosphere at a specific time show a complete and detailed account of every event in the cycle show a complete and detailed account of every event in the cycle predicts conditions that will exist during future events
Answers
The advantage of using models to represent the Carbon cycle is to show
a complete and detailed account of every event in the cycle.
What is a Carbon cycle?This is the cycle that shows how Carbon moves to the atmosphere and
back to the earth as a result of various activities.
This cycle shows a detailed description of the various processes that
involves the movement of Carbon to the atmosphere and how they get to
the Earth.
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How did the invention of synthesized ammonium affect humanity?
Answers
Some factors in a particular ecosystem include: sunlight, alfalfa, rabbits, hawks, and mice. Of these factors, which one is the most important to the survival of the ecosystem?
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differiantiate between photolysis and carbon (IV)oxide fixation
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Answer:
photolysis is the process ny which chlorophyll molecules absorb light energy which is used to split water molecules into oxygen and hydrogen atoms
What kind of solar energy reaches Earth after traveling through space?
Answers
Explanation:
All of the energy from the Sun that reaches the Earth arrives as solar radiation, part of a large collection of energy called the electromagnetic radiation spectrum. Solar radiation includes visible light, ultraviolet light, infrared, radio waves, X-rays, and gamma rays. Radiation is one way to transfer heat.
Answer:
solar radiation I'm sure
which one means chromosomes that everyone has, regardless of sex. The first 22 chromosomes
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- Autosomes
-Sex Chromosomes
-Analogous Chromosomes
Answers
Answer:
Autosomes is tge correct one Explanation:
A wild-type fly (heterozygous for gray body color and red eyes) is mated with a black fly with purple eyes. The offspring are: wild-type 721 black-purple 751 gray-purple 49 black-red 45
Answers
5. Recombination frequency between the genes for body color and eye color is approximately 6%.
6. A pattern of maternal inheritance suggests that an inherited disorder of cell metabolism is due to a defective mitochondrial gene. The disorder is passed from an affected mother to all of her offspring, regardless of the child's sex, and may skip generations.
5) To calculate the recombination frequency between the genes for body color and eye color, we need to analyze the offspring data provided. We have four different categories of offspring:
Wild type (gray body, red eyes): 721Black-purple: 751Gray-purple: 49Black-red: 45Recombinant offspring are those that have a combination of traits that are different from the parental types. In this case, the recombinant offspring are the gray-purple and black-red flies. To determine the recombination frequency, we calculate the proportion of recombinant offspring out of the total number of offspring:
Recombinant offspring = Gray-purple + Black-red = 49 + 45 = 94
Total offspring = Sum of all offspring = Wild type + Black-purple + Gray-purple + Black-red = 721 + 751 + 49 + 45 = 1566
Recombination frequency = (Recombinant offspring / Total offspring) x 100
= (94 / 1566) x 100
≈ 0.06 x 100
≈ 6%
Therefore, the recombination frequency between the genes for body color and eye color is approximately 6%.
6) In cases where a geneticist suspects that an inherited disorder of cell metabolism is due to a defective mitochondrial gene, they look for specific patterns of inheritance that are indicative of mitochondrial transmission. Mitochondrial DNA (mtDNA) is primarily inherited from the mother, and therefore, the pattern of inheritance differs from typical nuclear DNA inheritance.
Key characteristics of mitochondrial inheritance include:
Maternal transmission: The disorder is passed from an affected mother to all of her offspring, irrespective of the sex of the child. This is because mitochondria, and hence mitochondrial genes, are inherited from the mother's ovum (egg) during fertilization.Lack of paternal transmission: Affected males cannot pass the mitochondrial DNA to their children since mitochondria are usually derived from the mother's egg and not the father's sperm. Therefore, the disorder does not follow the typical patterns of inheritance seen in nuclear DNA, such as autosomal dominant or recessive inheritance.Generation skipping: The disorder may appear to skip generations, as it is only transmitted through the maternal lineage. This occurs because affected males do not pass the mitochondrial DNA to their children.If an inherited disorder shows a pattern where it is exclusively transmitted through the maternal lineage, affecting both males and females but skipping generations, it strongly suggests that the disorder is due to a defective mitochondrial gene.
The complete question should be:
5) In another cross, a wild-type fruit fly (heterozygous for gray body color and red eyes) is mated with a black fruit fly with purple eyes. The offspring are as follows: wild type, 721; black-purple, 751; gray-purple, 49; black-red, 45. What is the recombination frequency between these genes for body color and eye color? Using information from problem 4, what fruit flies (genotypes and phenotypes) would you mate to determine the sequence of the body-color, wing-size, and eye-color genes on the chromosome?
6) What pattern of inheritance would lead a geneticist to suspect that an inherited disorder of cell metabolism is due to a defective mitochondrial gene?
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What is the primary function of the Cell Wall?
1.Take in carbon dioxide
2.builds proteins
3.to protect and provide support for the cell
4.convert solar energy to chemical change
Answers
Theo is grounded by his parents for getting bad grades at school. After the first week of being grounded, Theo brought home his new report card with all these. To encourage Theo to get more A’s, his parents ended his being grounded a week earlier than they had originally stated. Is the punishment by application or by removal?
Answers
To encourage Theo to get more A’s, his parents ended his being grounded a week earlier than they had originally stated. Is the punishment by application.
How, explain your answer?Use a professional format.Note the position you're applying for. Describe why you're the best fit for the job. Outline your credentials. Note why you like the job.Thus, this could be the answer.
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PLEASE HELP
structures found in eukaryotic cells but not in a bacterial cells are?
Answers
Answer:
Bacterial cells do not have a nucleus. They also lack membrane-bound organelles, such as mitochondria or chloroplasts. The DNA of a bacterial cell is also different from a eukaryotic cell.
Explanation:
Eukaryotic cells are by definition those that have a membrane-bound nucleus, a morphological component that is absent from bacterial and archaeal cells.
What is the difference between eukaryotic and prokaryotic cells?Eukaryotic cells are distinguished by numerous membrane-bound structures in addition to the nucleus, including the endoplasmic reticulum, Golgi apparatus, chloroplasts, mitochondria, and others.
Prokaryotic cells lack membrane-bound structures, whereas eukaryotic cells do, including the nucleus.
The existence of mitochondria and chloroplasts, the cell wall, and the makeup of chromosomal DNA are all examples of differences between the cellular structures of prokaryotes and eukaryotes.
Therefore, prokaryotic cells are the name for bacteria's cells. Eukaryotic cells are cells that are found in mammals, plants, and fungi.
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Which two products does a rabbit produce that allow the carrot it eats to make molecules used for energy?
d. Carbon dioxide and oxygen
C. Water and carbon dioxide
b. Glucose and water
a. Water and oxygen
Answers
Answer:
d. Carbon dioxide and oxygen
these are the products of cellular respiration, which are also the reactants that a carrot would use to carry out photosynthesis along with sunlight
How does the muscular system help the skeletal system to cause movement in the body?
Answers
Answer:
muscular system helps us move by applying force and skeletal system holds us up.
Explanation:
what is the relationship between climate change and the regularity of droughts in South Africa?
Answers
The relationship between climate change and the regularity of droughts in South Africa is complex but generally understood to be significant. Climate change, driven primarily by human activities such as the burning of fossil fuels and deforestation, is altering global weather patterns and contributing to shifts in precipitation patterns and increased temperatures.
In the case of South Africa, climate change has been associated with a higher frequency and intensity of drought events in certain regions. Here are some key points regarding their relationship:
Changing Rainfall Patterns: Climate change can lead to altered rainfall patterns, including changes in the timing, duration, and intensity of rainfall. South Africa's climate is characterized by regional variations, but overall, climate models suggest that the country will experience reduced average rainfall and increased variability. This can result in more frequent and severe droughts in some areas.
Increased Evaporation: Rising temperatures associated with climate change can increase evaporation rates, leading to drier soil conditions. This can exacerbate the impact of reduced rainfall and contribute to prolonged drought periods.
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13) List three things entering the sheet in Model 2.
1)
two)
3)
14) List three substances that come out of the leaf.
1)
two)
3)
15) What substance is going in and out?
16) Veins are important structures that transport materials through the sheet. Describe the central vein on the leaf diagram.
17) How is the substance you identified in Question 15 changed between your entry and exit?
Use the general equation for photosynthesis and Model 2 to answer the following questions.
18a) What are the reactants of photosynthesis?
18b) Where do these reagents enter the leaf?
18c) What are the products of photosynthesis?
18d) Where do leaf products come from?
help me please
Answers
Water and carbon dioxide are really the reactants in photosynthesis. We now know that for plants to create food, they require water and carbon dioxide (CO2).
What does photosynthesis entail?Photosynthesis is the process through which plants turn co2 from the atmosphere, water, and sunlight into oxygen & sugar-based electricity. Transmittance, electron transport, ATP production, as well as nitrogen fixation are the four phases of photosynthesis.
What is the main function of photosynthesis?The primary function of photosystems is to convert solar energy into metabolic energy that is then stored for use at a later time. The biological systems on the planet largely receive energy from this method. It is not extremely effective by the framework of ethics engineering, but it does the job.
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In a certain species of mammals, gray fur (G) is dominant to white fur (8) and brown eyes (B) are
dominant to blue eyes (b). An animal with white fur and blue eyes is crossed with an animal that has
gray fur and brown eyes (GGBb). What trait will appear in all of the offspring of this mating?
Answers
Gray fur (G) trait will appear in all of the offspring of this mating.
This is because one parent has GG. Even if the other parent has gg, all the offspring will have Gg and G is dominant.
Dominant and Recessive traits:Dominant and recessive traits exist when a trait has two different forms at the gene level.
The trait that first appears or is visibly expressed in the organism is called the dominant trait. The trait that is present at the gene level but is masked and does not show itself in the organism is called the recessive trait.Learn more:
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What are the similarities between selective breeding and cloning?
Answers
Answer: (in explanation)
Explanation:
Cloning is when you create a copy of an organism with the EXACT same DNA and such. Selective breeding is when you breed organisms over time to get the desired traits.
in its application to phylogenetics, parsimony is a method that attempts to minimize the number of synapomorphies. helps distinguish convergent evolution from evolutionary reversals. helps distinguish ingroups from outgroups. helps distinguish synapomorphies from homoplasies. attempts to maximize the number of homoplasies
Answers
In the field of phylogenetics, parsimony is a method used to infer evolutionary relationships among species based on their shared characteristics. Therefore the correct option is option A.
Meaning:
The technique assumes that the most straightforward explanation for a given collection of data is the most likely to be right. In phylogenetics, this suggests that the evolutionary tree with the fewest evolutionary changes, or synapomorphies, is more likely to be correct.
Synapomorphies can be distinguished from homoplasies, which are features that arose separately in different lineages. Parsimony aids in identifying the evolutionary relationships that are most likely to be correct by reducing the number of synapomorphies required to explain the observed data.
Furthermore, parsimony aids in distinguishing convergent evolution from evolutionary reversals. Convergent evolution occurs when separate lineages independently evolve comparable features in response to similar selective pressures.
In contrast, evolutionary reversals occur when a characteristic that was previously dominant disappears.
Conclusion:
In summary, parsimony is a method in phylogenetics that attempts to minimize the number of synapomorphies needed to explain the observed data. Therefore the correct option is option A.
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What’s an opinion you have about genetic testing?
Answers
Answer:
Genetic testing is useful in many areas of medicine and can change the medical care you or your family member receives. For example, genetic testing can provide a diagnosis for a genetic condition such as Fragile X or information about your risk to develop cancer. There are many different kinds of genetic tests
What animal that has a similarity of humans reproduction, and its difference.
Answers
Answer:
Chimpanzees has a similarity of humans reproduction, and its difference is explained below in details.
Explanation:
Researchers discovered back in 2006 that chimpanzees experience around 98.4 and 99 percent of our DNA. They're more like to people than they are to gorillas! There are several similarities between animals and humans that you may have remarked. Humans and animals both feed, relax, imagine, and interact. We are also related in a lot of the means our bodies work.
Calculate the acceleration between D and E.
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Answer:
I believe the answer is D.5m/s/s
earth's biosphere is described as
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A scientist isolated a molecule with nucleotide bases A, C, G, and U and ribose sugars. What is it?
a. rna
b. an amino acid
c. glucose
d. dna
e. a fatty acid
Answers
Answer:
The Answer is RNA.
Explanation:
Because RNA consists of four nitrogenous bases: adenine, cytosine, uracil, and guanine. I am 100% sure that is the answer if it's wrong, very sorry.
Which statement best describes a material that has a low albedo and a low
heat capacity?
A. It reflects very little light and heats up quickly.
B. It reflects most light and heats up quickly.
C. It reflects most light and takes a long time to heat up.
D. It reflects very little light and takes a long time to heat up.
Answers
in cases where the plasma concentration of an ion or nutrient affects the secretion rate of a hormone, the affected hormone is usually a regulator of the homeostasis of that ion or nutrient.True or False
Answers
True. In cases where the plasma concentration of an ion or nutrient affects the secretion rate of a hormone, the affected hormone is usually a regulator of the homeostasis of that ion or nutrient.
This is because hormones play a crucial role in maintaining homeostasis by regulating various physiological processes, including ion and nutrient balance within the body. Similarly, parathyroid hormone (PTH) regulates calcium and phosphate homeostasis by increasing the release of calcium and phosphate from bones and increasing the reabsorption of these ions from the kidneys. When the plasma concentration of calcium is low, PTH secretion increases, which helps to raise the concentration of calcium in the blood and maintain calcium homeostasis.
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2)
«ՈՒՐԱՐ,
A
B
C
Which of the molecules above is a tRNA molecule?
none of the above.
A
Ծ Ծ Ծ Ծ
C
B
Answers
Answer:
B
Explanation:
Transfer RNA (tRNA) is an RNA molecule involved in the process of translation by which cells synthesize proteins. These molecules (tRNAs) have 76-90 nucleotides in length which form characteristic stem-loop structures, and they are considered adaptor molecules because tRNAs serve as the physical link between the messenger RNA (mRNA) and specific amino acid residues of the growing polypeptide chain. A tRNA is composed of a trinucleotide region (i.e., the anticodon region) that binds to the codon in the mRNA, and a region that attaches to a specific amino acid in order to transfer it to the ribosome, where protein synthesis takes place.
Answer:
b
Explanation:
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