What are the light independent reactions in photosynthesis

The true statement on Mark and Nancy's measurements is D. Both sets of measurements are equally accurate and precise.

The closeness of a measurement to its exact value is known as accuracy, while the degree of reproducibility or repeatability pertains to precision. Mark and Nancy's measurements closely mirrored the fundamental value of 15.1 cm; however, Mark deviated slightly below while Nancy stood above it.

Their sets of measurements are similar in this regard, thus rendering them equally accurate. Notably, their range of values displays a counterpart pattern with Mark's readings differing by just 0.1 cm and that of Nancy ranging from 0.1-0.2 cm. Hence, both sets share a similar level of precisions too.

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Answer:

(autotrophs) need light, nutrients, CO2 (dissolved gases) to photosynthesize

Explanation:

The abiotic factors in the ocean help the ocean to 'work'. For example, phytoplankton (autotrophs) need light, nutrients, CO2 (dissolved gases) to photosynthesize. All of these factors are crucial to the primary producer!

Bacterial communities are an important part of biological diversity and biogeochemical cycling in aquatic ecosystems. In this study, the relationship amongst the phytoplankton species composition and abiotic environmental factors on seasonal changes in the community composition of free-living and attached bacteria in Lake Erhai were studied. Using Illumina high-throughput sequencing, we found that the impact of environmental factors on both the free-living and attached bacterial community composition was greater than that of the phytoplankton community, amongst which total phosphorus, Secchi disk, water temperature, dissolved oxygen and conductivity strongly influenced bacterial community composition. Microcystis blooms associated with subdominant Psephonema occurred during the summer and autumn, and Fragilaria, Melosira and Mougeotia were found at high densities in the other seasons. Only small numbers of algal species-specific bacteria, including Xanthomonadaceae (Proteobacteria) and Alcaligenaceae (Betaproteobacteria), were tightly coupled to Microcystis and Psephonema during Microcystis blooms. Redundancy analysis showed that although the composition of the bacterial communities was controlled by species composition mediated by changes in phytoplankton communities and abiotic environmental factors, the impact of the abiotic environment on both free-living and attached bacterial community compositions were greater than the impact of the phytoplankton community. These results suggest that the species composition of both free-living and attached bacterial communities are affected by abiotic environmental factors, even when under strong control by biotic factors, particularly dominant genera of Microcystis and Psephonema during algal blooms.

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The abiotic factors that could affect the  growth of phytoplankton is sunlight and nutrients.

Phytoplankton are small photosynthetic organisms that are found in water. They are photosynthetic and occur close to the water surface due to their requirement for light.

Photosynthesis is the process by which green plants make their own food in the presence of sunlight and CO2.

Sunlight provides the energy required for photosynthesis while nutrients such as phosphates are required for phytoplankton growth.

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Answer:

The correct answer is - Inhibits cell cycle progression.

Explanation:

Smoking marijuana affects the body in several ways and also causes mutation to the DNA which leads to the disruption of the cell cycle. The major effect on the cell cycle of marijuana is due to the chemical present in it known as #9 -Tetrahydrocannabinol.

THC or #9  -Tetrahydrocannabinol inhibits the cell cycle progression by arresting the cell cycle in different stages that prevent the cell to proliferate and it is proposed for the research in treating tumors.

The part of lung depicted in diagram is alveoli . The function of alveoli is gaseous exchange with blood vessel .

Alveoli are microscopic air sacs in your lungs that absorb oxygen and keep your body running. Despite their small size, alveoli are the workhorses of your respiratory system. Despite their small size, the alveoli are the hub of gas exchange in your respiratory system. The alveoli absorb the incoming energy (oxygen) and expel the waste product (carbon dioxide) that you exhale.

Your blood absorbs oxygen from the alveoli and emits carbon dioxide as it passes through blood vessels (capillaries) in the alveolar walls.

Blood vessels are circulatory system components that convey blood throughout the human body. These veins carry blood cells, nutrients, and oxygen to the body's tissues. They also remove trash and carbon dioxide from tissues. Blood arteries are required for life to be sustained because all of the body's tissues rely on their functionality.

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Tell me about a typical day with your baby is an example of an indirect statement. The statement is true.

What is indirect statement ?

Indirect statement is composed of  an independent clause which include verb of thinking, knowing, hearing, perceiving and a dependent noun clause introduced by the word.

The indirect statement  completely depends upon the tense of the main verb.

If the main verb is past tense and the infinitive is present tense then the infinitive will be translated as a past tense verb.

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The options are missing from the question. They are;

a. These enzymes are inhibited but not destroyed under conditions

of starvation since destroying them would require energy input.

b. These enzymes continue to be needed since catabolism of lipids

and proteins leads to intermediates that are oxidized through

these pathways.

c. Once enzymes are produced in a cell, they continue to function

for as long as the cell lives even if they are not used.

d. All catabolic enzymes are expressed when energy levels are low

in a cell, including enzymes that cannot oxidize the fuel

molecules that are available.

e. The cell continues to produce these enzymes in case glucose or

other carbohydrates become available again.

The correct answer to the question is option B

THESE ENZYMES CONTINUE TO BE NEEDED SINCE CATABOLISM OF LIPIDS AND PROTEINS LEADS TO INTERMEDIATES THAT ARE OXIFIZED THROUGH THESE PATHWAYS.

The enzymes involved in glycolysis are; hexokinase, phosphofructokinase, and pyruvate kinase.

The cell use Amino acids as energy source through the conversion of the amino acids that enter glycolysis or the citric cycle that are eventually catabolized to CO2 at various points through the help of their enzymes (fumarase) or (fumarase hydratase) speeding up the rate of the reaction.(pyrimidines).

Answer:

Plant Cells

Explanation:

Answer:

MnO2 + 2HCl -> MnCl2 + 2H2O + Cl2

Explanation:

Use the appropriate chemical formulas to write the imbalanced equation.

Determine how many atoms of each element there are on both sides of the equation.

Determine the unbalanced components.

Begin balancing the components on one side of the equation that are present in a single molecule.

Verify that each component is balanced. If not, change the coefficients of the six molecules so each element has an equal amount of atoms on both sides.

Verify to make sure the coefficients are in the lowest whole-number ratio.

Verify once more that the equation is balanced, with an equal number of each sort of atom on both sides.

By adding coefficients of 2, 2, and 1 to the molecules, for instance, the equation MnO2 + HCl -> MnCl2 + H2O + Cl2 can be balanced to become MnO2 + 4HCl -> 2MnCl2 + 2H2O + Cl2.

Answer:

c

Explanation:

m making observations

Answer:

CO₂ is the product of cellular respiration.

Explanation:

The overall reaction of cellular respiration is:

C6H12O6 + 6O2 + 36ADP + 36Pi  →  6CO2 + 6H2O + 36ATP

In the given scenario, the water will move from cell to the outside, resulting in decrease in cell size. The correct option is A.

If a container has a cell with a 10% salt solution and 90% water, and the outside concentration is 30% salt and 70% water, osmosis will occur.

Osmosis is the movement of solvent molecules (in this case, water) across a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

In this scenario, the cell has a lower salt concentration (10%) compared to the outside environment (30%).

As a result, water molecules will move from the area of lower salt concentration (inside the cell) to the area of higher salt concentration (outside the cell) in an attempt to equalize the solute concentration on both sides of the membrane.

Thus, the correct option is A.

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Answer:

I'm not sure if I'm answering this correctly but if it's the way I believe it is then,

Sucrose- glucose & fructose.

Starch - amylose & amylopectin.

Explanation:

Sorry if this isn't correct. Good luck lol

We need 1 nanogram of plasmid in the transformation reaction when the transformation efficiency is given for 1000 colonies on plate P - 200.

Given the value of transformation efficiency (TE) = \(1 * 10^6\)

Number of colonies on the plate P-200 = 1000

To calculate the amount of plasmid (in nanograms) required for transformation, we need to first calculate the number of cells required for transformation.

To get desired number of cells we multiply the transformation efficiency and number of colonies given such that:

number of cells = \(TE (1*10^6) * 1000 colonies = 1 * 10^9 cells\)

Since 1 nanogram of plasmid is equivalent to \(1 * 10^9\) cells, we can conclude that we need to use 1 nanogram of plasmid in the transformation reaction.

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This is an example of exponential growth.

Exponential growth refers to a pattern of growth where the quantity or size of something increases at an accelerating rate over time.

In the given scenario, Brain has one son, two grandchildren, and three great-grandchildren.

Each generation is producing more offspring, resulting in a rapidly increasing number of descendants.

The progression from one generation to the next demonstrates exponential growth because each subsequent generation adds more individuals than the previous one.

As the generations continue, the number of descendants grows exponentially larger.

Exponential growth can be observed in various natural and human-made systems, such as population growth, compound interest, and the spread of infectious diseases.

In this case, the number of descendants in Brain's family tree follows an exponential pattern, as each new generation multiplies the number of offspring, leading to a significant growth rate.

Therefore, the example given aligns with the concept of exponential growth.

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Science teachers consider practical sciences to be a valuable component of science education for several reasons:

Hands-on Learning: Practical sciences provide students with the opportunity to engage in hands-on learning experiences. This approach allows students to actively explore and manipulate materials, conduct experiments, and make observations.

Example: In a biology class, students may conduct a dissection of a preserved specimen to study the anatomy and structure of organisms. By physically dissecting and examining the different organs and systems, students gain a tangible understanding of the subject matter.

Application of Theory: Practical sciences enable students to apply theoretical knowledge acquired in the classroom to real-world situations. By engaging in practical activities, students can bridge the gap between abstract concepts and their practical applications, fostering a more comprehensive understanding of scientific principles.

Example: In a chemistry class, students might perform experiments to understand chemical reactions and concepts like stoichiometry. By actually mixing and observing different substances, measuring quantities, and analyzing the results, students can see how theoretical concepts translate into practical applications.

Development of Scientific Skills: Practical sciences help students develop essential scientific skills, such as critical thinking, problem-solving, observation, data analysis, and communication. Through practical activities, students learn to formulate hypotheses, design experiments, collect and analyze data, draw conclusions, and communicate their findings effectively.

Example: In a physics class, students could design and conduct an experiment to investigate the relationship between force and motion. By planning the experiment, taking measurements, analyzing the data, and presenting their findings, students enhance their scientific skills and develop a deeper understanding of physics concepts.

Engagement and Motivation: Practical sciences often increase student engagement and motivation in science education. Hands-on activities provide a more interactive and dynamic learning environment, making science more interesting and accessible to students. It can spark curiosity, promote active participation, and cultivate a sense of wonder and excitement about the natural world.

Example: In an environmental science class, students may visit a local ecosystem to conduct field observations, collect samples, and analyze the data they gather. By immersing themselves in the real environment and actively participating in the scientific process, students are more likely to be motivated and engaged in their learning.

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Answer:

The correct answer is option D.  Light and some other factors are necessary for chlorophyll production

Explanation:

By this experiment, it is clear that light is the major factor that helps in the production of chlorophyll in seedlings or plants. In this study, placing the seeds in the light turns 75 seedlings green which is possible by the production of the green pigment, chlorophyll only. So, it is proved that light is a key factor in the production of chlorophyll.

Besides light, there must be some other factors (mineral nutrition and chemical metabolites) that also play role in the production of chlorophyll or increase or decrease of the chlorophyll production as few seedlings did not turn green in the study.

Sylvia can use statement A correctly in her report: "Global winds pull surface ocean water into the major ocean currents observed today."

This statement accurately describes one of the primary causes of ocean currents - the force of global winds on the surface of the ocean, which creates areas of high and low pressure and drives the movement of water.

Statement B is incorrect because global winds do not cause surface ocean currents to extend deeper beneath the surface of the water; rather, ocean currents are typically driven by the wind and waves on the surface layer of the ocean.

Statement C is also incorrect because while changes in Earth's climate can have an impact on ocean currents over long periods of time, they are not the primary cause of surface ocean currents.

Statement D is incorrect because ocean currents can exist in all parts of the ocean, not just along coastlines.

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Answer:

Eukaryotes are able to regulate gene expression in groups of genes through the coordination of transcription factors. Transcription factors are proteins that bind to specific DNA sequences near the genes they regulate and either enhance or repress their transcription. The transcription factors can work together to activate or repress the transcription of genes in groups, allowing for coordinated gene expression. In some cases, transcription factors may bind to enhancer or silencer elements located far away from the genes they regulate, forming enhancer or silencer complexes. These complexes can then recruit other transcription factors and co-activators or co-repressors to modulate gene expression in a coordinated manner. Therefore, activators and repressors act together to increase gene expression by binding to regulatory sequences near the genes they regulate and working in groups to coordinate gene expression.

Answer:

B.

When matter is heated or combined, the total weight of the matter will increase.

Explanation:

Answer:

D. Genetics

Explanation:

D. Genetics would be the most helpful area of expertise in breeding the remaining individuals of the black rhinoceros population. Geneticists can use their knowledge of genetics to help increase the reproductive rate and genetic diversity of the population.

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The model was against religious teachings. Why was it difficult for people to accept a heliocentric concept of the solar system? Aristotle was famous and his ideas were supported by religious teachings.

Answer:  B. Rectus abdominus

The highlighted muscle in the image is the rectus abdominus. Therefore, option B is correct.

The rectus abdominus is a paired muscle located in the front of the abdomen. It extends vertically from the pubic bone to the sternum (breastbone). It is a long, flat muscle that plays a key role in core stability, posture, and various movements of the trunk, such as flexion (bending forward) and stabilization.

The rectus abdominis is also known for its characteristic appearance in individuals with well-developed abdominal muscles, often referred to as having a "six-pack."

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The wing of a bald eagle is homologous to the wing of a penguin. Homologous structures are structures that are of similar evolutionary origin.

Homologous structures are  described as anatomical features found in different species that have a common evolutionary origin. These structures may have different functions in different organisms, but they share a similar underlying structure and can be traced back to a common ancestor.

The wing of a bald eagle and the wing of a penguin are considered homologous structures because they both evolved from a common ancestral structure, even though they serve different purposes  which is flight in the case of the bald eagle and swimming in the case of the penguin.

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The correct options regarding cellular respiration are:

requires energy

uses glucose

releases energy ATP

reactants O2 and glucose

occurs in both plants and animals

products CO2 and H2O

form of metabolism

occurs in mithocondria

breakdown molecules to release energy

the main stages of cell cycle are Interphase, Mitotic phase and cytokinesis.

Cell cycle was discovered by Prevost and dumans in 1824.it is aprocess by which a new cell popupulation grows.It consist of 3 phases.

1. FIRST IS INTERPHASE -: called as resting phase of cell cycle.In this cell prepares for cell divison and DNA replication.it is divided further into 3 phases.

2. SECOND IS MITOTIC PHASE- here cell gives birth to new progeny.it has 4 stages

3. THIRD IS CYTOKINESIS- In this phase cytoplasm of cell divides.

For more information:

The three correct answers are:

B. The chlorophyll in the leaves break down, revealing yellow and red pigments that had been masked by the green pigments. This process leads to the beautiful fall foliage colors observed in maple trees. As the weather gets colder, the breakdown of chlorophyll exposes the underlying pigments, creating vibrant red, orange, and yellow leaves.

C. Xylem and phloem fill with ions and organic substances that prevent freezing. In response to increasing cold weather, the tree transports ions and organic compounds into the xylem and phloem. These substances act as antifreeze agents, preventing the freezing of sap and ensuring the circulation of nutrients and water within the tree.

D. Meristems form thick scales to protect next year's buds from cold winter temperatures. The meristems, which are the regions of the tree where new growth occurs, undergo changes in response to the approaching cold weather. They form protective scales around next year's buds to shield them from the harsh winter conditions, ensuring their survival and future growth.

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Your question is incomplete, but most probably your full question was:

Which of the following occur in a maple tree growing in a temperate climate in response to increasing cold weather? Choose three correct

answers.

A. Auxin production stimulate one final growth spurt before winter arrives,

B. The chlorophyll in the leaves break down, revealing yellow and red pigments that had been masked by the green pigments.

C. Xylem and phloem fill with ions and organic substances that prevent freezing.

D. Meristems form thick scales to protect next year's buds from cold winter temperatures,

False.

Although drug diversion is a recognized problem in healthcare settings, the extent of drug diversion is not always accurately measured and reported.

What is Self Medication?

Self-medication refers to the practice of using medications or other treatments without consulting a healthcare professional or without a prescription. This can include taking over-the-counter medications, using herbal remedies, or using prescription drugs obtained from friends or family members. Self-medication is often done to alleviate symptoms of a condition or illness, but it can also be done for recreational or non-medical purposes.

Improved insurance coverage for prescription medications is the common factor associated with drug diversion in the healthcare setting that is not typically reported. The other three factors (A. Self-medication for pain or sleep, B. Addiction, and D. Monetary gain) are commonly associated with drug diversion in the healthcare setting.

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