multicellular gameotophytes are the product of spores from a) stigmas and sepals. b) ovules and anthers. c) ovules and petals. d) anthers and stigmas.

Once pyruvic acid is in the mitochondrial matrix, NAD⁺ accepts 2 high-energy electrons to form NADH. This occurs during the process of pyruvate oxidation, where pyruvate is converted into acetyl-CoA and CO₂.

Pyruvate oxidation occurs in the mitochondrial matrix, where pyruvate is first decarboxylated and oxidized by the enzyme pyruvate dehydrogenase complex. During this process, one molecule of NAD⁺ is reduced to NADH for each molecule of pyruvate that is processed. The electrons carried by NADH are later used in the electron transport chain, which generates ATP through oxidative phosphorylation. NADH donates its electrons to the electron transport chain, which results in the pumping of protons across the mitochondrial inner membrane, creating an electrochemical gradient that is then used to synthesize ATP.

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Phosphofructokinase | is found in cytoplasm, photosystem I |  is found in stroma (chloroplast). Thus, the correct matches are A. 1, B. 3, C. 2.

Mitochondria is type of cell organelle that is found in cells of eukaryotic organisms, such as plants, animals. It generates ATP. Which is source of chemical energy, hence, it is called as power house of the cell.

The term mitochondria was coined by Carl Benda in 1898. It is bilayered consisting inner and outer membrane  composed of phospholipid bilayers and proteins.

Therefore, Phosphofructokinase | is found in cytoplasm, photosystem I |  is found in stroma (chloroplast) and rubisco |isocitrate dehydrogenase is found in Internal membrane of mitochondrion.  

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Scale of the model: 1:10,000. To find the scale of the model, we need to compare the size of the model to the actual size of the red blood cell. Given that the diameter of the red blood cell is 0.008mm and the diameter of the model is 80mm, we can calculate the scale by dividing the diameter of the model by the diameter of the actual cell.

Scale = Model diameter / Actual cell diameter

Substituting the given values:

Scale = 80mm / 0.008mm

Simplifying the expression:

Scale = 10,000

Therefore, the scale of the model is 1:10,000.

1. Identify the diameter of the red blood cell: 0.008mm.

2. Identify the diameter of the model: 80mm.

3. Use the formula Scale = Model diameter / Actual cell diameter.

4. Substitute the values into the formula: Scale = 80mm / 0.008mm.

5. Simplify the expression to find the scale: Scale = 10,000.

6. The scale of the model is 1:10,000, indicating that the model is 10,000 times larger than the actual red blood cell.

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The conversion of 8 H₂O molecules to 2 H₂O molecules is a chemical change that occurs through a dehydration or condensation reaction. This process involves the removal of water molecules to form a larger molecule and requires energy to occur.

This is a reaction that occurs between two molecules, and results in the formation of a single, larger molecule, while releasing a small molecule, usually water. In this case, the small molecule is water (H₂O), hence the name dehydration or condensation reaction.
During this reaction, the 8 H₂O molecules combine to form 4 H₂O molecules. This reaction is often used in the laboratory to create polymers from monomers. It can also be used to produce certain biomolecules such as carbohydrates, proteins, and nucleic acids, as well as other chemical compounds.
In order to carry out this reaction, energy is required. The reaction occurs in several steps and involves the removal of water molecules from the original 8 H₂O molecules, forming a new, larger molecule. The reaction is reversible, which means that it can be carried out in both directions, depending on the conditions and reactants involved. Thus, the conversion of 8 H₂O molecules to 2 H₂O molecules is a chemical change that can occur through a process known as dehydration or condensation reaction.

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In the structure of a cell membrane, the hydrophobic tails of the phospholipid bilayer are found in the interior of the cell membrane while the hydrophilic heads of the phospholipid bilayer are found in the exterior of the cell membrane.

All cells have a cell membrane, also known as a plasma membrane, which separates the interior of the cell from the external world.

A semipermeable phospholipid bilayer makes up the cell membrane. The movement of elements into and out of the cell is controlled by the cell membrane.

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Answer:

The producer booked a ticket on an airplane. When he flies, the plane will add a certain amount of CO2 to the atmosphere. One way to remove CO2 is by planting trees. We know that trees take in CO2 from the atmosphere during photosynthesis. The producer can help keep his travel plan carbon neutral by planting a related number of trees. The trees offset the carbon released into the atmosphere by the airplane.

Explanation:

I took this from the real answer on Edmentum.

Answer:

The producer booked a ticket on an airplane. When he flies, the plane will add a certain amount of CO2 to the atmosphere. One way to remove CO2 is by planting trees. We know that trees take in CO2 from the atmosphere during photosynthesis. The producer can help keep his travel plan carbon neutral by planting a related number of trees. The trees offset the carbon released into the atmosphere by the airplane.

Explanation:PLATO

In aquatic ecosystems, trophic pyramids of biomass are inverted because b. the standing biomass of algae is lower than the standing biomass of consumers.

The trophic pyramid of biomass is upright in the majority of ecosystems, including terrestrial ecosystems, with the producer level having the highest concentration of biomass and subsequent trophic levels having progressively lower concentrations. The trophic pyramid of biomass, on other hand, is frequently inverted in aquatic ecosystems, meaning that standing biomass of primary consumers is higher than standing biomass of primary producers.

This is due to phytoplankton's fast turnover rate, referring to how quickly old individuals are replaced by fresh ones. Due to the fast rate of turnover, phytoplankton has a lower standing biomass than that of primary consumers like zooplankton, which may accumulate in enormous quantities.

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Pneumonia - Infection causing fluid to build up inside the lungs

C o v i d - Newly discovered respiratory virus

Mesothelioma - Cancer of the outer lung cells frequently caused by asbestos exposure

Asthma - Constriction of the airways, commonly treated with a rescue inhaler

Emphysema - destruction of the walls of the a lv eoli

P neumotho rax - reduced lung volume due to air or fluid collecting around the outside of the lung.

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During the S (synthesis) phase of interphase, the cell replicates its DNA. This is a critical stage in the cell cycle as it ensures that each daughter cell receives a complete and accurate copy of the genetic material.

The replication process begins with the unwinding of the DNA double helix, which allows the replication machinery to access the individual strands. The replication machinery, composed of enzymes such as helicases and polymerases, then adds new nucleotides to the exposed strands, creating two identical copies of the DNA molecule. This process is called semi-conservative replication, as each new DNA molecule is composed of one original strand and one newly synthesized strand. The S phase ensures the proper distribution of genetic information to the daughter cells, ensuring the continuation of the cell cycle and the preservation of the genetic material.

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Answer:by reducing fossil fuel along with farming industries and also humans reducing gas emissions which isn’t good for us to breathe let alone our animals

Explanation:

to build overpass with naturally grown grass as a bridge since they noemally follow the same path.

Answer:

True

Explanation:

Phrenology was a theory that involved the analyzation of bumps/dents on the skull to predict a person's intellect, personality, and mental traits.

Answer: the answer is sulfur.

Explanation: I took the test

The greatest quantity of ATP produced is during the A) oxidative phosphorylation.

The oxidative phosphorylation of the cellular respiration process is the most energetically efficient step in terms of the generation of ATP by a unit of chemical energy, i.e. per unit of glucose in the case it is the fuel that carries out the aerobic process of cellular respiration.

Therefore, with this data, we can see that oxidative phosphorylation of the cellular respiration process is better to produce ATP than glycolysis of the Krebs cycle.

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Answer:

compound light microscope.

Explanation:

dissecting microscopes are used for dissecting, to not look at cells

-electron microscopes are used to look at things which are really small (i.e:specific endoplasmic reticiulums)

The external urethral sphincter is controlled by skeletal muscles if the parasympathetic nervous system is largely responsible for controlling the micturition reflex.

Skeletal muscle: What is it?

One of the three essential muscle tissues in the human body is found in the bone. Thousands of muscle fibres covered in connective tissue sheaths make up each skeletal muscle. Fasciculi are the different collections of muscular fibres that make up skeletal muscles.

The somatic nervous system is in charge of the voluntary skeletal muscles. The other types of muscle include non-striated smooth muscle and striated cardiac muscle. Both of these muscle groups can be classified as being autonomic, or under the control of the autonomic nervous system micturition reflex.

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Answer:

The greenhouse effect is a natural phenomenon that causes the surface of the Earth to steam. When sunlight strikes the Earth's atmosphere, part of it is reflected back to space, while the remainder is absorbed and re-radiated by greenhouse gases.

Explanation:

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The total number of genes in the human genome is approximately 100,000. Genes are segments of DNA that contain instructions for making proteins, which are essential for the functioning of cells and the human body as a whole.

Single nucleotide polymorphisms (SNPs) are variations in a single nucleotide base within the DNA sequence. They are the most common type of genetic variation among individuals. It is estimated that there are more than 1 million SNPs in the human body.

SNPs can have various effects on an individual's health and traits. Some SNPs are associated with an increased risk of certain diseases, while others may have no noticeable effect. SNPs can also be used to study the relationships between genetic variations and diseases, and to understand human evolution and population genetics.

In summary, the human genome contains approximately 100,000 genes and more than 1 million variants called single nucleotide polymorphisms (SNPs). These SNPs contribute to the genetic diversity among individuals and have important implications for health and disease.

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If the movement of molecules or ions requires a protein channel, it is called facilitated transport still it does not require energy. The given statement is true.

Facilitated diffusion is the process of spontaneous transport of molecules or ions across a biological membrane via some specific transmembrane integral proteins such as channels or carrier proteins.

Facilitated diffusion is also called the carrier-mediated diffusion because a substance which is transported in this manner diffuses through the membrane with the help of a protein. That is, the protein facilitates diffusion of the substance to the other side of the membrane.

Facilitated diffusion does not require high energy molecules such as ATP like active transport. This type of diffusion uses protein to transport molecules across the plasma membrane.

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Your question is incomplete, most probably the complete question is:

If the movement of molecules or ions requires a protein channel of some sort, it is called facilitated transport still requiring no energy. True or False?

Answer:

Because they shouldn’t you’re canceled ‍♀️

Explanation:

Answer:

Ocean plays the role of regulator.

Explanation:

The role of the ocean change with respect to the amount of carbon dioxide in the atmosphere because oceans plays a role of regulator and balancer. When there is high amount of carbon dioxide in the atmosphere due to burning of fossil fuels and volcanic eruptions so the ocean absorb that extra amount of carbon dioxide from the atmosphere while on the other hand, when there is decrease in the concentration of carbon dioxide in the atmosphere, the ocean gives its carbondioxide gas to the atmosphere to regulate the concentration.

Answer:

they would decrease

Explanation:

as grasshoppers (there food source) would die out through lack of grass. so without there food source the pop. of mice would decrease

Answer:

It would decrease because grass is the mice’s main source of food.

Explanation:

The use of sigma factor by RNA polymerase for promoter identification is a type of Transcriptional regulation.

Transcription is the process of copying DNA into RNA, which is then used to synthesize proteins. RNA polymerase is the enzyme responsible for transcribing DNA into RNA, which is a process that is highly regulated to ensure that the correct genes are transcribed at the appropriate times and in the appropriate amounts. The sigma factor is an important protein that helps RNA polymerase recognize and bind to specific promoter sequences on DNA. The sigma factor is a transcription initiation factor in prokaryotes that assists RNA polymerase in recognizing promoter sequences. The core enzyme of RNA polymerase binds to DNA nonspecifically and slides along the double helix until it encounters a promoter. The sigma factor is then released, and the core enzyme continues to transcribe the gene by synthesizing RNA in the 5'-3' direction. The use of the sigma factor by RNA polymerase is a type of transcriptional regulation that helps to ensure that genes are transcribed only when they are needed and in the appropriate amounts.

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