Question 19 (1 point)
Which of the following is an example that includes evidence of a chemical reaction?
Answers
Answer:
sugar that is burned off gives an odor and turns brown and then black is a chemical change
Related Questions
Identify the number of neutrons
Atomic number: 23
Atomic mass: 51
Question 1 options:
28
18
22
23
Answers
What are the pigments in cyanobacteria used for?
Answers
Answer:
Pigments are useful to plants and other autotrophs
Explanation:
Not sure, but hope this helped a bit
6)
PHOTOSYNTHESIS CHAR
SUNLIGHT
CARBON DIOXIDE
WATER
OXYGEN
PLANT SUGARS
MINERALS
Carbon dioxide enters the loves through stomatiy holes in the leaves
ientific
Calc
Examine the photosynthesis model above. What is a correct conclusion about the inputs and outputs of photosynthesis?
A)
without light energy from the sun, photosynthesis would still occur
ghlight
Time
maining
0:44:39
de Tools
B)
oxygen is an input into photosynthesis, carbon dioxide is an output
o
carbon dioxide is the source of energy, oxygen is the chemical energy
produced
sunlight is the source of energy: plant sugars are the chemical energy
produced
D)
Answers
Answer:
hhhjjiioooougtyuiioooyy ini Dion LG belajar tema yang diupload oleh penggunanya jadi anda tidak perlu lagi sedang belajar kesungguhan dan keikhlasan kepada seorang kawan yang nomor satu
Explanation:
ini melawanang ini Dion LG belajar tema yang diupload oleh penggunanya jadi anda tidak perlu lagi sedang belajar kesungguhan dan keikhlasan kepada seorang kawan yang penulis pandang telah tenggelam di antara mereka yang nomor satu di antara mereka yang nomor
which statement does not accurately describe natural selection
Answers
Answer:
there is no sentence sorry
Answer:
We can´t do this question if their is no statements
Explanation:
This dichotomous key helps scientists classify within the arthropoda phylum. If scientists discover an organism with: less than 10 legs, 6 legs, wings, wings with 1 or 2 colors, with legs that are approximately the same length, wings that are not net-like, and wings that meet in a straight line down the back, how would this organism be classified?
Answers
You'll have to follow the dichotomous key that's provided to you. Start by choosing less than 10 legs, then choose 6 legs, then with wings, then wings with 1 or 2 colors... etc. You should end up identifying an organism this way.. following the path.
During photosynthesis, plants release____ into the air through their leaves.
Answers
Answer:
O2 (oxygen)
Explanation:
Photosynthesis- the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
Perception is the way we organize or make sense of our sensory impressions. T F
Answers
Perception is the way we organize or make sense of our sensory impressions.
The given statement is True.
Perception is the method by which the brain compiles and analyses data about the outside world that it receives from our senses. However, perception involves much more than just a passive transfer of data from the eyes and ears to the brain.
Our ability to organize or make sense of the sensory impressions that are brought on by light striking our eyes is known as visual perception. Our knowledge, hopes, and motives all play a role in how we perceive the world visually. We actively interpret the environment around us through visual perception.
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using the yeast chart, what two limiting factors may have caused a decline in the peak?
(select all that apply)
a.) ran out of food
b.) no more mates for reproduction
c.) a disease spread across the population
d.) ran out of space
Answers
Answer:
a) Ran out of foodc) A disease spread across the populationExplanation:
The appropriate answer for this is insufficient food and accumulation of toxic material( disease spread across the population).
It is the lag phase of growth. In this phase cell death is greater than cell production. This happens when there is insufficiency of food and accumulation of waste material of bacteria that are toxic for yeast, and result in cell death.If you are satisfied with the answer and I am hopeful, please mark it branliest.
Thanking in anticipation.
Which imaging technique is best suited for localizing brain areas, as described in the studies of neural activity
Answers
The imaging technique that is best suited for localizing brain areas involved in neural activity is functional magnetic resonance imaging (fMRI).
fMRI works by detecting changes in blood oxygen levels in different regions of the brain, which are correlated with neuronal activity.
During an fMRI scan, the participant is asked to perform a specific task, such as viewing pictures or solving a puzzle. Changes in blood oxygenation levels are then measured as the participant performs the task, and the resulting data can be used to create an image of the brain that highlights the regions that are most active during the task.
fMRI has several advantages over other imaging techniques for localizing brain activity, such as its high spatial resolution and non-invasiveness.
It can also be used to study a wide range of cognitive processes, from visual perception to decision-making, and can even be used to track changes in brain activity over time.
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what is hiberbation?
Answers
Answer:
Explanation:
Hibernation is an adaptation that allows an animal to escape cold weather and food shortages over winter.
a cell has 50% solute and 50% solvent the solution the cell is sitting in has 30% solvent and 70% solute what would happen to the cell if the membrane only allowed active transport of particles to take place
Answers
Answer:
The cell would crenate, the solvent would move in to the cell
Explanation:
From the options ;The cell would crenate, the solvent would move into the solution ( A )
Hello your question is incomplete attached below is the complete question
since the cell has a 50% solute and 50% solvent while the solution where the cell is sitted contains a 30% solvent and a 70% solute. and the cell membrane allows for osmosis. this shows that the solute concentration in the solution is higher than solute concentration in the cell.
The solution is hypertonic ( has a higher solute percentage ) therefore the water ( solvent ) from the cell will move into the solution causing the cell to crenate.
hence we can conclude that the cell would crenate and the solvent would move into the solution
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use the diagram to come up with YOUR OWN DEFINITION of nondisjunction
Answers
Answer:
The sister chromosome looks like it fails to completely split, so that shows the daughter chromosome not having either of the chromosomes
Explanation:
freezing point for water in F and C
Answers
Researchers established a number of cultured cell lines derived from different tumors. How might they determine which ones are malignant
Answers
Researchers can perform a series of tests that assess the characteristics of the cells. Here are some of the tests they might use:
Morphology: They can examine the cells under a microscope to look for features such as abnormal size, shape, and texture. Growth rate: They can measure the rate at which the cells divide and multiply. Malignant cells tend to grow faster than normal cells.Invasion: They can test whether the cells invade and penetrate surrounding tissues or not. Tumor formation: Researchers can inject the cells into mice or other animals to see if they form tumors. Genetic markers: They can look for specific genetic markers that are associated with malignancy, such as mutations in tumor suppressor genes or oncogenes.Researchers are individuals who engage in systematic investigation, analysis, and interpretation of data to generate new knowledge and understanding of various fields of study. They use scientific methods, theories, and tools to conduct experiments, collect data, and analyze results.
Researchers can work in a variety of settings, including universities, research institutions, government agencies, private companies, and non-profit organizations. They may specialize in a particular field, such as biology, psychology, physics, or computer science, or they may work across disciplines to address complex issues. Researchers play a critical role in advancing knowledge and solving problems in fields ranging from healthcare to technology to environmental science.
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select the phylum wherein the common characteristic of the members is that they have segmented bodies
Answers
Arthropoda is the largest phylum in the animal kingdom, and its members, called arthropods, have segmented bodies along with jointed appendages and an exoskeleton.
Examples of arthropods include insects, spiders, and crustaceans.
The phylum Arthropoda is characterized by members with segmented bodies.
The members of this phylum are characterized by their segmented bodies, jointed appendages, and hard exoskeletons.
This segmentation allows for greater flexibility and movement. Arthropods include insects, spiders, crustaceans, and other related organisms.
In summary, Arthropoda is the phylum where members have segmented bodies. This segmentation allows for greater movement and flexibility due to their jointed appendages and hard exoskeletons.
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Which type of white blood cell can become either a memory cell or a plasma cell to be used in a specific immune response
Answers
Answer:
I think Native B cell . Research before writing please !
Due 23 October 2020 11:59
Instructions
Essential Questions:
How do we determine the weather of a particular location?
Answers
FROM SCHOLASTIC
the organism found in contaminated powdered infant formula that can cause meningitis is ______.
Answers
The organism found in contaminated powdered infant formula that can cause meningitis is Streptococcus agalactiae, also known as Group B Streptococcus (GBS).
How does the disease meningitis spread?
Meningitis is a serious illness that can be caused by a variety of microorganisms, including bacteria, viruses, and fungi. The majority of cases are caused by bacterial or viral infections. The infection spreads via respiratory and throat secretions, such as saliva, sputum, or nasal mucus.
Bacterial meningitis is more severe and can lead to permanent brain damage, sepsis, and, in rare cases, death if left untreated.
What is powdered infant formula?
Powdered infant formula is a commercially prepared product designed to replace human breast milk. It is made from dried milk powders, vitamins, and minerals, and is intended to be mixed with water and served as a liquid. Powdered infant formula is a nutritious alternative to breastfeeding and is frequently used by families that are unable or unwilling to breastfeed.
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Alice was participating in a photosynthesis lab for science class. The lab procedures instructed Alice to prepare a test tube containing water, a sprig of elodea (a common aquarium plant), and 10 g of sodium bicarbonate (NaHCO3). She was then instructed to place the test tube in front of a strong light source for one minute. Alice noticed tiny bubbles forming on the leaves of the elodea. What is the most logical explanation for why Alice saw bubbles forming on the leaves of the elodea?Group of answer choicesThe bubbles formed as a result of the hydrogen from the sodium bicarbonate mixture dissolving the elodea leaves.The bubbles formed from the release of water molecules from the elodea leaves.The bubbles formed as the elodea plant released oxygen from the elodea leaves.The bubbles formed as the elodea plant released carbon dioxide from the elodea leaves.
Answers
Step 1.
Write down the experiment data.
- tube containing water;
- alodea (photosynthetic organism);
- 10 g of sodium bicarbonate;
- light source.
Step 2.
Why bubbles are formed on the leaves of the alodea?
The experiment have all the condictions for photosynthesis, since it provides: water (that is in the tube), CO2 (because of the dissolved sodium bicarbonate), light (because of the string light source). Therefore the most ogical explanation for Alice experiment results is: the bubbles formed as the elodea plant releases oxygen from the elodea leaves, that because with all the elements in the experiment the plant can do a normal photosynthetic process that way realing oxygen in the tube and forming bubbles of "air".
5. what are the major steps that occur during photosynthesis? what happens in each step (summarize briefly the key point(s))?
Answers
Photosynthesis is a complex process that can be summarized in two key steps: the light-dependent reactions and the light-independent reactions (also known as the Calvin cycle).
In the light-dependent reactions, light energy is converted into chemical energy in the form of ATP and NADPH. In the light-independent reactions, ATP and NADPH are used to convert carbon dioxide into glucose.
During the light-dependent reactions, light energy is absorbed by chlorophyll and other pigments in the chloroplasts of plant cells. This energy is used to split water molecules, releasing oxygen as a byproduct.
The energy from the absorbed light is then used to convert ADP (adenosine diphosphate) into ATP (adenosine triphosphate) and NADP+ (nicotinamide adenine dinucleotide phosphate) into NADPH. These energy-rich molecules, ATP and NADPH, are essential for the next step.
In the light-independent reactions, also known as the Calvin cycle, carbon dioxide enters the chloroplasts and combines with a five-carbon compound called RuBP (ribulose-1,5-bisphosphate). This process is facilitated by the enzyme RuBisCO (ribulose-1,5-bisphosphate carboxylase/oxygenase).
The resulting unstable six-carbon molecule quickly breaks down into two molecules of a three-carbon compound called PGA (phosphoglycerate). ATP and NADPH from the light-dependent reactions provide the energy and reducing power to convert PGA into PGAL(phosphoglyceraldehyde) through a series of enzymatic steps. Some PGAL molecules are then used to regenerate RuBP, while others combine to form glucose and other organic compounds.
Overall, photosynthesis is a remarkable process where plants capture light energy and convert it into chemical energy in the form of glucose, which serves as a fundamental energy source for both plants and other organisms in the food chain.
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Which environmental group is most associated with using con-
frontational tactics in order to raise awareness for environmental
issues that they find important?
A
Environmental Defense Fund
B
Greenpeace
С
Sierra Club
D
World Wildlife Fund
Answers
Environmental Defense Fund is the most-associated group with using confrontational tactics used to raise awareness for environmental issues. Thus, the correct option is A.
What is Environmental Defense Fund?Environmental Defense Fund or EDF is a United States-based non-profit environmental advocacy group for the environment protection. This group is known for its work on the issues related to global warming, ecosystem restoration, oceans, and human health, using sound science, economics and law that work.
EDF's mission is to preserve the natural systems on which all the life forms depend. This advocacy is guided by science and economics, to find practical and lasting solutions to the most serious environmental issues.
Environmental Defense Fund is a 501(c)(3) organization, with donations which are tax-deductible.
Therefore, the correct option is A.
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mitochondria are regraded as semi-autonomous cell organelles. support that mitochondria in many of the eukaryotic cell have evolved from prokaryotic cell
Answers
Answer:
The mitochondria are semi-autonomous cell organelles which are evolved from prokaryotic cells.
Explanation:
The mitochondria is surrounded by lipid bilayer membrane.They possess their own self replicating DNA ,also 70s ribosomes for protine synthesis,so they are believed to have evolved from prokaryotic cells
By the end of the period all major animal lineages were present in the seas due to a great adaptive radiation of animals
Answers
The correct answer to this open question is the following.
Although there are no options attached we can say the following.
The correct answer is the Cambrian period.
By the end of the Cambrian period, all major animal lineages were present in the seas due to the great adaptive radiation of animals.
We are talking about 500 to 540 million years ago on planet Earth.
Scientists consider that during the Cambrian period, major groups of animals diversified. Marine animals such as trilobites were among the first fossils discovered by scientists. Oxford curator Edward Luhyd started to study these fossils in 1668.
All of the following are ways that the "complex flow" depiction of the scientific method differs from the "simple" depiction often portrayed in textbooks, EXCEPT that the "complex flow" chart mentions
A. benefits and outcomes of science.
B. testing hypotheses.
C. exploration that leads to a scientific question.
D. community analysis and feedback.
Answers
The "complex flow" chart of the scientific method differs from the "simple" depiction in textbooks by mentioning the benefits and outcomes of science. Option A is the answer.
Option A is the answer. The "complex flow" depiction of the scientific method includes various additional aspects compared to the simplified version often portrayed in textbooks. Here's an explanation of each option:
A. Benefits and outcomes of science: The "complex flow" chart acknowledges and highlights the benefits and outcomes that can result from scientific inquiry. It recognizes that science not only aims to answer specific questions but also contributes to the advancement of knowledge, technology, and societal progress. This aspect is not typically emphasized in the simplified depiction.
B. Testing hypotheses: Both the "simple" and "complex flow" depictions include testing hypotheses as a crucial step in the scientific method. This involves formulating a hypothesis, designing experiments or investigations to test it, collecting data, and analyzing the results.
C. Exploration that leads to a scientific question: The "complex flow" chart acknowledges the importance of exploration and the process of generating scientific questions. It recognizes that scientific inquiry often begins with curiosity, observation, and exploration of a particular phenomenon, which leads to the formulation of specific scientific questions to be addressed.
D. Community analysis and feedback: The "complex flow" chart also emphasizes the role of the scientific community in the scientific method. It recognizes that scientific research involves communication, collaboration, and peer review. Community analysis and feedback are essential for evaluating scientific findings, ensuring rigor and quality, and promoting further scientific discourse.
In summary, the "complex flow" depiction of the scientific method includes all the options mentioned (benefits and outcomes, testing hypotheses, exploration leading to a scientific question, and community analysis and feedback). Therefore, the correct answer is A. Benefits and outcomes of science.
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if you study the factors that regulate the number of organisms of a particular species that inhabit an area, you are a:
Answers
If you study the factors that regulate the number of organisms of a particular species that inhabit an area, you are a population ecologist.
Factors are elements or circumstances that contribute to a particular outcome, situation, or process. They can have a significant influence on the results or conditions of a system or event. Factors can be diverse and can vary depending on the context. In a general sense, factors can include both internal and external variables that affect a given situation. For example, in the context of business, factors such as market conditions, competition, economic trends, consumer behavior, and technological advancements can impact the success or failure of a company. Understanding and analyzing these factors is important for decision-making, planning, and mitigating potential risks or challenges.
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The thickness, shape, and size of leaves indicate that
Answers
Answer:
Adapted to the environment
Explanation:
The thickness, shape, and size of leaves are adapted to the environment. Each variation helps a plant species maximize its chances of survival in a particular habitat.
Answer:
D. how they have adapted
Explanation:
Which gases on the atmosphere are the worst and why
Answers
Answer:
Methane and carbon dioxide because, for one carbon dioxide warms the planet and causes global warming and methane traps heat into the atmosphere.
Explanation:
An experimental study is conducted to determine whether a new drug reduces high blood pressure. the change in systolic and diastolic blood pressure values of the participants represents the _____.
Answers
According to the research, the correct option is Dependent Variable. The change in systolic and diastolic blood pressure values of the participants represents the dependent variable.
What is an experimental study?It is the one that obtains data through experimentation and compares them with constant variables where the researcher chooses his variables, and, by manipulating them, in a controlled environment, he can search for evidence.
In this sense, the dependent variable is one whose value depends on the numerical value that the independent variable adopts in the function.
Therefore, we can conclude that according to the research, the correct option is Dependent Variable. The change in systolic and diastolic blood pressure values of the participants represents the dependent variable.
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Explain why Euglenozoa cannot be classified as either plants or animals?
Answers
Euglenozoa are monophyletic group of flagellated protists as well as free-living, symbiotic, and parasitic species. According to genetic studies, Euglenozoa are meither plant nor animal despite the suffix zoa. They are somewhat the living dependent of a few of the primal unicellular organisms called eukaryotes. It is also a genus of unicellular flagellate protists where the word "unicellular" means that the organism consists of one cell only that's why they're not considered plant or animals.
what is a neuron ?
( don't answer this please )
Answers
Answer: Glia outnumber neurons in some parts of the brain, but neurons are the key players in the brain. Neurons are information messengers. They use electrical impulses and chemical signals to transmit information between different areas of the brain, and between the brain and the rest of the nervous system.
Explanation:
Sorry for answering. i saw an opportunity for 5 points. SORRY!!!!