what happens to the free energy that is released as electrons are passed from photosystem-ii through a series of electron carriers?

FADH molecule is not involved in photosynthesis.

Photosynthesis is the process of synthesis of food by plants using carbon dioxide and water in presence of sunlight and chlorophyll. Oxygen (O2) is released during the process as a waste product. The energy from ATP and NADPH are used to fix carbon dioxide (CO2). So NADH is not a product of the light reaction of photosynthesis.

The main difference between NADH and FADH2 is that every NADH molecule produces 3 ATP molecules during oxidative phosphorylation whereas every FADH2 molecule produces 2 ATP molecules.

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Answer:

c

Explanation:

True, some careers emerge to address the environmental impact human behaviors and processes might be having on our planet.

The majority of the actions people take in their everyday lives have a significant impact on the environment. These activities, from basic day-to-day processes to the products and services we use, all have an environmental impact. Environmental conservation refers to the protection, restoration, and sustainable use of environmental resources.

Environmental conservation as a career

Environmental conservation has become an industry in and of itself, with a growing demand for experts who can help conserve natural resources, implement more sustainable policies and practices, and educate others on the importance of environmental conservation. Environmental conservationists, environmental scientists, and environmental engineers are all examples of professions that deal with environmental conservation. These professions aim to improve the environment by addressing human processes and behaviors that are contributing to environmental degradation and developing new solutions to these issues.

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Three main factors that can change the gene pool of a population are: additional individuals being born, individuals moving out of the area, and mutations.

Here, all the options are correct.

The gene pool of a population is the collective set of genetic information for all of the individuals who make of the population. This pool is continually changing as individuals are consistently interacting with the environment.

Due to the process of reproduction, additional individuals are constantly being born, adding new genetic information to the population as a whole. This new information can be a mixture of genetic traits passed down from the parents or it may be completely new, caused by the mutations during the reproductive process.

Here, all the options are correct.

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Answer:

C

Explanation:

A holistic approach to an issue means that there are several interconnected parts to the issue and referring to all these parts is necessary in order to tackle the issue.

Hence, in a holistic approach to the study of environmental science, a student might look at the complete system consisting of individual parts.

The correct option would be C.

In a holistic approach to the study of environmental science, a student might look at the complete system consisting of individual parts. So option C is correct.

"The Holistic Approach to Environment” deals with exploring possibilities and developing the models of benevolent co-existence of all beings on Earth. It does not deal solely with one segment of environment, but it sees the life on the planet as a whole.

A holistic environment is a place where all aspects of a person’s life, from the physical to the mental to the emotional to the social to the spiritual, are in harmony with each other.

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Answer:

The picture given displays an ecosystem's food chain. The animals are the organisms that the energy flows through and the arrows represent where the enerrgy is going.

Question: Which obtains more energy, the rabbit or the fox?

In DNA, a group of three nucleotides is called a codon. Each group of three bases, called a codon, codes for a particular amino acid. mRNA reads the code in codons, with each codon corresponding to a specific amino acid.

The genetic code is read in groups of three nucleotide bases at a time. Each group of three bases, called a codon, codes for a particular amino acid. mRNA reads the code in codons, with each codon corresponding to a specific amino acid. The genetic information stored in the DNA is transcribed into mRNA, which is subsequently translated into protein by ribosomes, with each codon specifying a specific amino acid. This is how genetic information is expressed as a sequence of amino acids in the proteins produced by cells.

In summary, in DNA, a group of three nucleotides is called a codon.

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Answer:

hope it helps....

Explanation:

Compost your waste; grow some of your own food and recycle. Conserve water. It takes lots of energy to pump, treat and heat water so saving water reduces greenhouse gas emissions. Watch what you pour down the drain and use eco-friendly products that break down.The most effective way to limit ocean acidification is to act on climate change, implementing solutions to dramatically reduce the use of fossil fuels. If we dramatically cut our global warming emissions, and we limit future warming, we can significantly reduce the harm to marine ecosystems.

Some tubes may have no restriction enzymes because they are being used as a negative control.

Restriction enzymes are enzymes that recognize specific sequences of DNA and cleave them into smaller pieces. Restriction enzymes are important tools for molecular biology research, as they allow scientists to cut DNA into fragments that can then be studied or manipulated in various ways, such as cloning or sequencing.

In the laboratory, restriction enzymes are usually supplied as a solution in a tube or vial, along with other reagents that are required for the reaction.

Sometimes, however, a tube may contain no restriction enzymes at all. This may be because the tube is being used as a negative control. A negative control is a sample that is identical to the experimental sample in every way except that it is missing the one component being tested. In the case of restriction enzymes, a negative control would be a sample of DNA that is identical to the experimental sample but is not treated with any restriction enzymes.

By comparing the results of the experimental sample with those of the negative control, scientists can determine whether any changes they observe are due to the action of the restriction enzymes or are due to other factors.

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Cells use the energy available in food to make a final energy-rich compound called: ATP (adenosine triphosphate).

Cells require energy to carry out various metabolic processes and perform work. During cellular respiration, the breakdown of food molecules, such as glucose, occurs to release energy. This energy is initially stored in the form of chemical bonds within molecules like glucose.

However, glucose itself is not the final energy-rich compound that cells use. Instead, cells convert the energy released from glucose and other fuel molecules into a molecule called ATP. ATP is often referred to as the "energy currency" of the cell because it carries and provides energy for cellular activities.

ATP is composed of adenine (a nitrogenous base), ribose (a sugar), and three phosphate groups. The energy released from the breakdown of food molecules is used to attach a third phosphate group to ADP (adenosine diphosphate), forming ATP. This process is called phosphorylation.

In summary, cells use the energy available in food to produce ATP, which serves as a portable and readily usable form of energy to power cellular processes.

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100% of zygotes will be diploid cells.

A diploid cell contains two complete sets of chromosomes, one from each parent. During fertilization, a sperm cell (haploid) and an egg cell (haploid) combine to form a zygote, which has a diploid number of chromosomes.

Zygotes are the result of fertilization, when a haploid sperm cell from the father fuses with a haploid egg cell from the mother to form a diploid zygote. The zygote then undergoes mitosis (cell division) to form an embryo, which will continue to divide and differentiate to eventually form a fully developed organism.

It's worth noting that not all organisms are diploid - some are haploid (containing only one set of chromosomes) or polyploid (containing more than two sets of chromosomes). However, in humans and most other animals, diploidy is the norm.

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Answer:

The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment. The diagram is used by biologists to determine the probability of an offspring having a particular genotype.

Explanation:

Answer:genotypes

Explanation:

The statement that describes the stability of the nuclei of potassium atoms is:

The stability of the nuclei of potassium atoms is due to the balance in the ratio between the neutrons and protons in the nuclei of the potassium atom.

For the nuclei of atoms to be stable, the ratio between the protons and the neutrons must be less than 1.5. When the ratio is greater, the nucleus spontaneously decays until it becomes stable.

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Complete question:

Which statement describes the stability of the nuclei of potassium atoms?

1) All potassium atoms have stable nuclei that spontaneously decay.

2) All potassium atoms have unstable nuclei that do not spontaneously decay.

3) Some potassium atoms have unstable nuclei that spontaneous decay.

4) Some potassium atoms have unstable nuclei that do not spontaneously decay

EXPLANATION: potassium has many isotopes, of which, most but not all are stable, being non-radioactive. From table N, it shows two different radioisotopes of potassium ³⁷K and ⁴² K. In all radioactive atoms, the nucleus is unstable and emits particles and/or energy as it disintegrates to a more stable state

Protein translated from a different gene can play the same functional role as another protein is a complex issue. In order to answer this question, it is necessary to examine both the genetic sequence of the proteins and the specific biological functions they perform.

In the case of tra-rb and tra-ra, it is possible that the protein translated from tra-rb could play a similar role as the protein translated from tra-ra. This is because the protein's function is determined by the sequence of amino acids that make up the protein. If the amino acid sequences of the proteins from tra-rb and tra-ra are similar, then it is likely that the proteins will have similar functions.

However, even if the amino acid sequences are similar, it is still possible that there are differences in the way the proteins interact with other molecules in the cell that could result in different biological functions. For example, the protein translated from tra-rb may have a different binding site than the protein translated from tra-ra, leading to a different function.

In addition, the protein's function may also be influenced by its location in the cell and the presence of other proteins. For example, if the protein translated from tra-rb is located in a different part of the cell than the protein translated from tra-ra, it may have a different role.

Overall, while it is possible that the protein translated from tra-rb could play the same functional role as the protein translated from tra-ra, it is important to carefully examine the molecular details of the proteins to determine their true function.

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Answer:

There are two main impacts on marine ecosystems from climate change: (a) rise of sea surface temperature; and (b) ocean acidification (due to CO2). Both (a) and (b) will impact on marine life. For example, increased in sea surface temperature caused a shift in distribution of fishes toward poles. Warming will likely affect the successful recruitment of marine organisms. In addition, warming may cause more toxic algal blooms (dinoflagellates and diatoms). Dinoflagellates and diatoms produce toxins which can then be accumulated in seafood organisms via the food chain pathways. Calcifying organisms (e.g. pteropods, corals, and molluscs) would be more vulnerable to changes in ocean acidification.

Explanation:

Answer:

A. DNA

Explanation:

Answer:

fish kills by industrial Waste

Explanation:

bc of all the trash on shores

Answer:

C. Oxygen

Explanation:

Most, if not all living things use oxygen in some shape or form. While Helium is the most abundant element, it is asking for living things, in which oxygen is a vital building block in maintaining life. Without oxygen, most animal species and humans would die.

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The correct answer is:

c. Type A blood, Type O blood, Type AB blood.

The phenotypes that match each genotype are as follows:

ii: Type O blood

IAIB: Type AB blood

IAi: Type A blood

The genotype ii represents individuals with two copies of the i allele, which does not produce any antigens on the surface of red blood cells. This results in Type O blood.

The genotype IAIB represents individuals who inherit both the A and B alleles. In this case, the alleles are codominant, meaning they are both expressed. This results in Type AB blood, which has both A and B antigens on the surface of red blood cells.

The genotype IAi represents individuals who inherit the A allele from one parent and the i allele from the other parent. The A allele is dominant over the i allele, leading to the expression of A antigens on the surface of red blood cells. This results in Type A blood.

Understanding the relationship between genotypes and phenotypes is crucial in determining blood types and predicting inheritance patterns in blood typing.

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Depending on the climate at the time, these soapberry bugs can also have 5–6 or 7 generations.

When the bugs started consuming the smaller goldenrain tree fruits, what happened to the soapberry insect population in central Florida? Each bug's beak got shorter and shorter as time went on. In order to eat the small fruits, bugs had to evolve short beaks.

The soapberry bugs are highly fragrant even though they are members of the insect family known as the unscented plant bugs. When provoked, soapberry bugs exude a strong odor that makes them unpleasant to eat and deters predators (possibly even poisonous).

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any song written by lil peep, some great starters are beamer boy and star shopping, I personally love Haunt You, Give You The Moon, and Nuts.

Answer:

The coral was no longer part of the reef, but it did become part of the beach.

Explanation:

Answer:

Change in DNA leads to change in the structure of the cell.

Explanation:

Mutation in the 17th nitrogen base of DNA leads to the formation of sickle cell hemoglobin protein instead of normal hemoglobin protein because mutation is the sudden change that occur in the genes of a cell which change the genetic makeup of the cell. So when change occur in the DNA, a sickle cell is formed instead of normal hemoglobin. Normal hemoglobin only formed when the no change occur in the nitrogen base of DNA.

The correct statement is c. Enzymes have an optimal temperature range, therefore Enzyme A will not function effectively in the arctic crab.

Enzymes are biological catalysts that facilitate chemical reactions in living organisms. Each enzyme has an optimal temperature range in which it functions most effectively. This temperature range is specific to the organism from which the enzyme is derived and is typically adapted to its natural habitat.

In the given scenario, Enzyme A is harvested from a deep-sea crab, which inhabits hydrothermal vents characterized by high temperatures. Enzyme A is then implanted into an arctic crab, which inhabits cold environments. Since Enzyme A is adapted to function in the high-temperature conditions of the deep-sea hydrothermal vents, it is likely to have an optimal temperature range that is not suitable for the cold environment of the arctic crab.

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Answer:

c

Explanation:

if it does not involve 2 parents it will produce offspring identical to parents

Answer: I think that Mode 1 produces offspring identical to their parents

Explanation: I think to me other statements according to the pictures don't seem biologically correct

Electrons to reduce CO₂ can come from : Glucose  

Most Non-sulphur Green and purple bacteria are photoheterotrophs because they use light as a source of energy while getting their reducing power from the electrons of glucose.

Green and purple bacteria uses sunlight but do not give out oxygen in return and they do not use only CO₂ as their carbon source, but uses electrons of glucose to reduce CO₂.

Hence we can conclude that Electrons to reduce CO₂ can come from : glucose

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Answer:

D

Explanation:

Answer:

Here is a diagram of eukaryotic cells! hope it helps

Explanation: