12. Sexual reproduction in animals or plants relies on the union of two specialized
cells known as

In photosynthesis, light energy from the sun is converted into chemical energy and is stored.

Photosynthesis is a method that plants and other organisms use to convert light energy into chemical energy that can then be released to fuel the organism's activities via cellular respiration.

Photosynthesis is the conversion of light energy by phototrophs into chemical energy, which is then used to power cellular activities.

Sugars, which are formed from water and carbon dioxide, are used to store chemical energy.

Animals require oxygen to survive, and plants serve as nature's air filter, filtering out harmful carbon dioxide.

Thus, this way, the light energy gets converted into chemical energy.

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Developing children with losses in the density of gray matter result in decreased intelligence scores. Gray matter is a major component of the central nervous system (CNS).

It is made up of neuronal cell bodies, dendrites, and unmyelinated axons. It is composed of 80 percent of the CNS's neurons and is located mainly in the cerebral cortex, cerebellum, and basal ganglia. Density is an important characteristic of gray matter that reflects the number of neurons and their associated dendrites and synapses in a given volume of tissue.

A decrease in the density of gray matter has been linked to a variety of cognitive, behavioral, and motor impairments, including decreased intelligence scores in developing children. Increasing impulsivity, increasing attentional capabilities, or decreasing muscle coordination are not associated with losses in the density of gray matter in developing children.

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Answer:

an organ

Explanation:

Answer: 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.

Explanation:

In plants and algae, chloroplasts are the organelles for photosynthesis takes place. This is what they look like:

The stroma is a semi-fluid region found inside the inner membrane. Thylakoids, which are held inside the stroma and attached to the membranes, are formed of the same phospholipid bilayers that make up the cell membrane. Granum is the name for a collection of thylakoids.

Light-dependent reactions

Below is a photo of the thylakoid membrane (Attachment #2). Even while it appears sophisticated, there are really just a few components that are significant unless you are really researching the chemical mechanisms underlying photosynthesis.

Cyclic photophosphorylation and non-cyclic photophosphorylation are the two possible mechanisms that could occur here. The non-cyclic variety is the most fascinating of them and is the one that is frequently taught as a requirement in classes. Ask me about the cyclic kind somewhere else if you're interested in learning more.

Consider the world from left to right. A protein complex called Photosystem II is located on the far left (abbreviated PSII). Chlorophyll and other pigments are found in the reaction centers of PSII and its partner, Photosystem I (PSI), which both function to absorb solar light.

So what occurs is that a photon from the sun strikes PSII, ejecting some very excited electrons from the reaction center. A water-splitting complex in PSII can also split water into two hydrogen ions, two highly energetic electrons, and one oxygen molecule, the last of which is discarded, thanks to the energy of the photon. The electrons knocked off of PSII are replaced by ones from water.

The energized electrons are then transported along a protein chain (plastoquinone, cytochrome b6f, and plastocyanin above). The cytochrome utilizes the energy they lose at each stage to force the hydrogen ions that are outside the thylakoid into the cell. Since the concentration increases outdoors, this creates a gradient of hydrogen ions.

The ATP synthase protein (the huge orange one) is powered as the hydrogen ions from water splitting travel through it with the gradient. Adenosine triphosphate (ATP), the fundamental energy "currency" of life, is created when the enzyme ATP synthase adds a phosphate to the molecule known as adenoside diphosphate (ADP). These hydrogen ions can also be drawn back inside by the transport chain's electrons since they end up on the exterior.

Returning to our electrons now. These electrons arrive to PSI exhausted and ravenous since the majority of their energy has been used up. What good fortune! Another photon strikes PSI, increasing the energy of the electrons. They subsequently travel through a few additional protein intermediates before being absorbed by the molecule nicotinamide adenine dinucleotide phosphate, or NADP+, coupled with a hydrogen ion. It's a mouthful, therefore it's a good thing there's an abbreviation! When NADP+ is transformed into NADPH, the energy-rich hydrogen and electrons are transported to the light-independent processes.

The net reaction of the light-dependent reactions is:

2H2O + 2NADP+ + 3ADP + 3Pi → O2 + 2NADPH + 3ATP

Light-independent reactions

So now we've got a whole bunch of NADPH in the stroma; how do we take the energy in it and convert it to sugars for long-term storage?

The solution is the Calvin cycle: (Attachment #3)

Because they don't require light to take place, the Calvin cycle and associated pathways are known as the light-independent reactions. The enzyme RuBisCo, on which the Calvin cycle is built, is so grossly inefficient that it may serve as the strongest argument against intelligent design. In specifically, RuBisCo is intended to accept carbon dioxide and connect it to a molecule known as ribulose 1,5-biphosphate. However, occasionally, it will take an oxygen molecule instead of carbon dioxide. Oops.

Anyway, let's start from the beginning. We have five of a 3-carbon molecule called 3-phosphoglycerate (PGA). Through a series of complicated reactions which use up the ATP and NADPH produced in the light-dependent reactions, these five 3-carbon molecules are converted into three 5-carbon molecules, the aforementioned ribulose 1,5-biphosphate. Then, RuBisCo fixes three carbon dioxide molecules onto the three ribulose 1,5-biphosphate molecules. This forms three 6-carbon molecules, which immediately split to form six PGAs. One of these PGAs leaves the reaction as a product. This means there are five PGAs left, and we're back where we began. (That's why it's called a cycle!)

(Now, look at the photosynthesis equation again: Attachment #4)

The PGA that left the cycle is usually converted into glyceraldehyde 3-phosphate (PGAL), which can be rearranged and combined to form molecules like glucose, which is the end product of photosynthesis. Ultimately, it takes two PGALs to form one glucose molecule.

Thank you,

Eddie

Answer:

50% will have ears

Explanation:

To have ears you must have the trait nn since the ears trait is recessive,  2 of the four possible offspring are like this, so 50%

behavioral

physiological

structural

Explanation:

sorry I only know three

Answer: There are three types of adaptations: Behavioral, Physiological, and Structural.

The correct statement about major component of blood is A. Plasma makes up approximately 55 percent of whole blood and includes cells and cell fragments.

Blood is a unique fluid that is critical for the survival of all living organisms. Blood is a specialized tissue that performs a variety of essential functions. It is made up of three major components: plasma, formed elements, and cell fragments. Plasma is the liquid portion of blood, which makes up about 55% of the total blood volume.

Plasma is a complex mixture of water, salts, gases, enzymes, and other substances. It transports nutrients, hormones, and waste products to and from various parts of the body. Formed elements and cell fragments make up the remaining 45% of the blood volume. Formed elements include red blood cells, white blood cells, and platelets. Therefore, Option A is correct

The question was incomplete. find the full content below:

which of the following statements about major components of blood is correct?

A. plasma makes up approximately 55 percent of whole blood and includes cells and cell fragments

B. plasma makes up approximately 45 percent of whole blood and includes cells and cell fragments

C. formed elements make up approximately 55 percent of whole blood and proteins and small solutes

D. formed elements make up approximately 45 percent of whole blood and includes cells and cell fragments.

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Answer:

Water

Explanation:

Just took post test for edmentum

Nearly all climatic and biological activities on Earth depend on solar energy, which is the primary energy driving our climate system. Numerous Earthly processes, such as surface warming, evaporation, photosynthesis, and air circulation, depend on energy from the sun.

The sun heats the earth's surface, and as the air above it warms as well, wind is produced. Water evaporated by the sun produces clouds and rain, which in turn give us moving rivers and streams.

As a result of the heat being introduced to the system doing some pressure-volume work at constant pressure, the heat capacity at constant pressure is higher than the heat capacity at constant volume.

In a system with heat capacity at constant volume, the entire heat input is used to increase the temperature.

Therefore, Energy comes from both the wind and moving water (hydropower). So you can see, the sun is the source of a variety of natural energies.

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Answer:

x=4

Explanation:

Therefore, theoretically speaking, I shall be the one who must thou answer such answer. In addition, I hail to speak tho truth must come out of one's mouth, in other words, spitting facts (aka. spittin fax )

You shall thank me later.

Kind Regards,

Penguin Man.

Answer:

Qualitative data is based on the quality of something an example can be the quality of a camera.

Quantitative data is based on quantity (numbers) an example can be the number of students at a football game

HOPE IT HELPED!! Please give it the best answer.

Explanation:

Answer: Uranium is a scarce resource

The probability that a randomly selected potential traveler will fall within the permitted height range is approximately 0.8186. The probability that a randomly selected group of 25 travelers will all be within the permitted height range is approximately 0.1544. The probability that a randomly chosen group of 25 travelers is underneath the weight limit is approximately 0.0014.

To find the probability that a randomly selected potential traveler falls within the permitted height range, we can calculate the area under the normal distribution curve between the given height limits. Using the Z-score formula, we can standardize the height range and then use the standard normal distribution table or a calculator to find the corresponding probabilities. The result is approximately 0.8186.

To calculate the probability that a group of 25 travelers will all be within the permitted height range, we need to consider the probability of each individual being within the range and then multiply those probabilities together. Since the heights of individuals are independent, we can use the multiplication rule for independent events. The probability that an individual is within the range is approximately 0.8186, so the probability that all 25 individuals are within the range is (0.8186)^25, which is approximately 0.1544.

Step 3: To determine the distribution of the mean weight of a sample of 25 travelers, we need to consider the central limit theorem. According to the theorem, if the sample size is large enough (typically n ≥ 30), the distribution of sample means will be approximately normal, regardless of the shape of the population distribution. The mean weight of the sample will still have a mean of 78kg, but the standard deviation will be the population standard deviation divided by the square root of the sample size, which in this case is 4kg/sqrt(25) = 0.8kg. Therefore, the distribution of the mean weight will be a normal distribution with a mean of 78kg and a standard deviation of 0.8kg.

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Answer: They read articles about photosynthesis. They investigate photosynthesis, energy storage molecules, and carbon in the sim. ... This process moves carbon from biotic to abiotic matter. Carbon dioxide in the biodome decreased because decomposers decreased which means there was a decrease in cellular respiration overall.

Explanation:

If you were looking at a frog's lifecycle, you would find more specialized cells in the adult frog stage (option b).

In a frog's lifecycle, the adult frog stage is where you would find more specialized cells. This stage occurs after the frog has gone through various developmental stages, starting from the beginning ball of cells.

1. The beginning ball of cells: This is the initial stage of a frog's development. It starts with the fertilization of the egg and the formation of a zygote. At this stage, the cells are not yet specialized and are in the process of dividing and multiplying.

2. Developing tadpole: After the beginning ball of cells, the zygote undergoes further development and transforms into a tadpole. The tadpole stage is characterized by the presence of gills and a tail. The cells in this stage are becoming more specialized but are still relatively unspecialized compared to the adult frog stage.

3. Adult frog: The adult frog stage is the final stage of the lifecycle. At this point, the tadpole has undergone metamorphosis and has transformed into a fully developed frog. In this stage, the cells have become highly specialized to perform specific functions necessary for the frog's survival, such as muscle cells, nerve cells, and specialized organs like the heart and lungs.

4. The same amount at all stages: It is not accurate to say that there is the same amount of specialized cells at all stages of the frog's lifecycle. As the frog develops and goes through metamorphosis, the cells differentiate and specialize to fulfill specific roles and functions required for each stage of development. The highest concentration of specialized cells is found in the adult frog stage.

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Primates, a group of mammals that includes humans, apes, monkeys, and prosimians, emerged around 65 million years ago. They evolved from small, tree-dwelling mammals called Plesiadapiformes.

These early primates had grasping hands and feet, forward-facing eyes, and an increased brain size compared to their ancestors. Scientists have discovered primate fossils on multiple continents. In Africa, primate fossils have been found in various countries such as Egypt, Kenya, and Tanzania.

Asia has yielded primate fossils in countries like China, India, and Myanmar. Europe has provided primate fossils in France, Germany, and Spain. North America has been a significant source as well, with primate fossils discovered in the United States and Canada. South America has contributed primate fossils mainly from Brazil, Argentina, and Colombia. Finally, primate fossils have also been found in Australia.

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The complete question is:

What became a primate? On what continents have scientists found primate fossils?

The value the group should report as the volume of the zinc beads will be 34.30 mL

The volume of a regular solid can be determined by allowing the solid to sink or float in a liquid in a calibrated cylinder.

The principle is such that a floating or sinking liquid will always displace its volume in any liquid.

Thus, assuming the initial level of the liquid in a cylinder is 50 mL. If the cylinder reads 70 mL after inserting the solid, the volume of the solid is calculated as the differences between the final and the initial cylinder readings.

In this case; initial reading = 42.55 mL, final reading = 76.85 mL

Volume of zinc beads = 76.85 - 42.55

                          = 34.30 mL

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In meiosis all four are genetically different. So, the correct answer is option (C) All four are genetically different.

Meiosis is the form of cellular department that creates egg and sperm cells. Mitosis is a fundamental system for existence. in the course of mitosis, a mobile duplicates all of its contents, such as its chromosomes, and splits to form two identical daughter cells.

Meiosis is a type of mobile department that reduces the wide variety of chromosomes within the discern cell by means of half and produces four gamete cells. This procedure is required to provide egg and sperm cells for sexual reproduction.

Meiosis takes place inside the primordial germ cells, cells exact for sexual duplicate and break free the frame's ordinary somatic cells. In instruction for meiosis, a germ cellular is going through interphase, in the course of which the complete cellular  undergoes replication.

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Answer:

The specific heat is the amount of heat per unit mass required to raise the temperature by one degree Celsius. The relationship between heat and temperature change is usually expressed in the form shown below where c is the specific heat.

Explanation:

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All the following statements about m protein iare right except It is readily digested by phagocytes Therefore the correct option is  C.

M protein is a virulence factor and an important antigenic determinant of Streptococcus pyogenes, the bacteria that causes strep throat. It is present on the surface of the bacteria and helps it to attach itself to phagocytic cells like macrophages.

It is also heat- and acid-resistant, meaning it can survive in hostile environments. However, M protein is not readily digested by phagocytes, as would be expected of other proteins found on fimbriae. In fact, phagocytic digestion may actually increase its ability to bind with host cells, leading to bacterial attachment to them.

Hence the correct option is C.

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Answer:

the answer is chloroplasts

Explanation:

Answer:

A.

Explanation:

Survival of the fittest includes adaptation

In gymnosperms, the male and female gametophyte structures are located on distinct male and female cones, whereas in angiosperms, they are a component of the flower.

The woody framework of the female pine cone protects the seeds. They protect their seeds so that they could be fertilized and flourish. There are two seeds on each fertile scale of the many spirally organized scales that make up a female pine cone. Pollen, a fine powder produced by male pine cones

Microsporangiate, or male strobili, and megasporangiate, or female strobili, respectively, are the male and female reproductive organs. On various branches of the same plant, it has male and female cones, or strobili. On the tree's higher branches are female cones, while its lower branches are home to male cone.

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When recording a customer payment in the receive payment window one should choose a checking account. the correct option is D, checking account.

What is a checking account?

A checking account is a type of bank account that allows individuals or businesses to deposit, withdraw, and manage their funds easily.

Key features of a checking account:

The checking account represents the bank account where the payments will be deposited once they are grouped together. Selecting the Checking account in the Deposit To field, ensure that the received payments are properly tracked and recorded. This allows you to later group multiple payments for deposit to the bank.

Therefore, the correct option is D.

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Biotic factors in an ecosystem are the living organisms or the participants in the foob web. They count on each other for their survival. The biotic factors in the foob web provided are the producers, consumers and decomposers. Abiotic factors in an ecosystem are rocks, soil, and water that collaborate with biotic factors to provide them with the nutrients they needed to survive. Sunlight, air, soil, and minerals are also examples of abiotic factors. Sunlight gives energy so that plants may use them i order to grow. This ultimately holds up the whole community of an ecosystem. Air also connects with plants to help them grow by providing an origin of CO2 and other nutrients.

Answer:

True

Explanation: