A river with large, smooth rocks on the bottom, small and medium sized sediment is moving downstream.

Which conditions resulted in the erosion of larger rocks, like the one circled in the image? Check all that apply.

The reasons why manure is an unreliable fertilizer include;

Fertilizers are substances that when added to the soil improves the nuttrient content and fertility of the soil.

There are two types of fertilizers;

Manure is obatined from dropping of animals and decayed or decaying plants.

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According to the given statement Electromagnetic radiation travels in the form of a photon.

The correct option is C.

A type of energy known as electromagnetic radiation spreads as magnetic and electrical waves that move in units of energy known as photons. Electromagnetic radiation has a range with varied wavelengths and frequencies, which in turn imparts various properties.

Do you watch TV, listen to the radio or use a microwave? Electromagnetic waves are used by all of these gadgets. Electromagnetic waves, which have varying wavelengths from one another, include radio waves, microwave, visible light, and x-rays.

There is no proof, despite a lot of research, that being exposed to low levels of electromagnetic fields is bad for one's health.

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It was important for Mendel to study such a large sample of pea plants because 'a higher sample size gives more accurate results'.

What do you mean by heredity?

Heredity is the passing of genetic characteristics from parents to offspring. It is the process by which certain traits are passed down through generations. It is the genetic material that is passed from one generation to the next.

A larger sample size helps to reduce the amount of variability in the results due to random chance, and increases the likelihood that any observed results are actually representative of the whole population. This is especially important when studying the inheritance of traits, as the probability of a trait being passed on is often very small. By studying a large sample size, Mendel was able to accurately determine the patterns of inheritance for the traits he was studying, and gain a better understanding of the mechanisms of heredity.

Hence, option D is correct.

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Answer: It is 25%

Explanation:

The unofficial titles of some eras such as Age of Fishes, Age of Reptiles and Age of Mammals are really informative and they are not oversimplifications because these periods reflect the emergence of different taxonomic groups in the course of evolution.

The animal eras are periods during the geological time in which certain groups of animals appeared in the course of evolution, which results informative to determine how evolution (change) occurred due to natural selection.

For example, mammals emerged as a taxonomic group during the Cenozoic Era, which occurred approximately 65 million years ago and this period is known as the Age of mammals.

Therefore, with this data, we can see that an animal era is not only an oversimplified term because it also involves the emergence of certain taxonomic groups during the evolution and can serve to contextualize geological periods in a biological framework.

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Answer:

The answer is a hypothesis.

Answer:I think hypothesis cuz of “proposed”

Explanation:

Answer:

3. A decrease in light intensity means a decrease in the energy required for photosynthesis to take place.

Explanation:

The greater the light intensity, the more energy supplied to the plant and therefore the faster the light-dependent stage of photosynthesis can occur.

You should avoid collecting soil samples from areas where there has been a recent fire, as the soil will be too hot to touch.

What is soil samples?
Taking a small sample of soil and sending it to a lab to be tested for nutrient content is known as soil sampling. The soil's essential to plant nutrition chemical, physical, and biological characteristics can also be examined. The presence of nutrients like nitrogen, phosphorus, and potassium is necessary for basic plant nutrition; soil sampling can also measure the soil's pH levels, humus content, availability of lime, complete sulphur content, and total CaCO3 content. Taking soil samples, performing laboratory tests on them, and then interpreting the results are all part of the analysis of the soil. Then, more advice on fertiliser as well as soil preservation can be given.

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Answer:

carbohydrates

Explanation:

because of the carbon & hydrogen

The outcrop of the eroded plunging anticlines and synclines bureaucracy a function zigzag pattern in the rock.

The fracturing of rock layers arise through excessive stress resulting from plate tectonics. This stress takes place because of convergent plate barriers in which the tectonic plates collide and push in opposition to every different in contrary directions.

When rocks deform in a ductile manner, in preference to fracturing to shape faults or joints, they will bend or fold, and the ensuing systems are referred to as folds. Folds end result from compressional stresses or shear stresses performing over sizeable time.

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Answer: B

Explanation: Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere.

According to the diagram the number of No. of Carbon atoms is 9, the number of oxygen atom is 2, the number of hydrogen atom is 9 and the number of nitrogen atom is 0.

The molecule which can be made by the carbon , hydrogen as well as nitrogen atom can be referred as organic molecule.

A complex molecule known as an organic was predominantly bonded carbon atoms joined to other atoms of the same element and/or additional carbon atoms. Each and every living creature on Earth is made up of organic components. Atoms that are bound together form molecules.

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The two abiotic factors that must be present in order for gypsum to form are that they have essential effects on dessert and the environment. In general, gypsum is made of many abiotic components. Abiotic components such as temperate deserts, and subtropical deserts.

               One type of saline soil is formed by Gypsum. Gypsum is a soft, chalky mineral composed of calcium sulfate [tex]CaSO_{4}[/tex] and water [tex]H_{2} O[/tex]. Here spatial variability means it maintains the even layer of the soil its decomposition and can develop the soil moisture. Gypsum is a nonclastic rock and transparent mineral. Deserts can be categorized by their low mean rainfall, even though it is just as essential to calculate the temporal and spatial variability in yearly rainfall. Gypsum is made up of oxygen [tex]O_{2}[/tex], sulfur S, calcium Ca, and water [tex]H_{2} O[/tex].

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Cnidarians digest their food outside of their cells, where enzymes break down the food into smaller pieces and the cells lining the gastrovascular cavity take in the nutrients. The gastrovascular cavity doubles as the mouth and anus in cnidarians, which have an incomplete digestive system with only one opening.

The gastrovascular cavity, a portion of the cnidarian's body, is used to transport materials as food enters the mouth and waste products exit through the mouth. By means of cellular digestion and the use of digestive enzymes, the cells located inside the gastrovascular cavity break down food.

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Answer: Photosynthesis occurs in plants; cellular respiration occurs in animals.

Explanation: In took Biology and Aced it!

When 4 molecules of water are oxidized by the light-dependent reactions, six molecules of ATP are formed directly as a result.

A molecule is described as a group of two or more atoms held together by attractive forces known as chemical bonds.

The Adenosine triphosphate (ATP) is described as the source of energy for use and storage at the cellular level. The structure of ATP is a nucleoside triphosphate, consisting of a nitrogenous base (adenine), a ribose sugar, and three serially bonded phosphate groups.

During the  light-dependent reaction the ions flow through ATP synthase from the thylakoid space into the stroma in a process called chemiosmosis to form molecules of ATP.

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All biological organisms contain the crucial chemical ATP (adenosine triphosphate). Consider it the cell's "energy currency." The ATP molecule splits off one of its three phosphates when a cell has to expend energy to complete a task, resulting in the formation of ADP (Adenosine di-phosphate) + phosphate.

In the light-dependent reactions, chlorophyll absorbs solar energy and transforms it into chemical energy that is then stored in the form of the energy-trading molecules ATP and NADPH (nicotinamide adenine dinucleotide phosphate) (adenosine triphosphate).

NADPH is a different energy carrier used in photosynthesis, yet it performs similarly NADP+, which has lesser energy, becomes NADPH after absorbing a high-energy electron and a proton. NADPH becomes NADP+ once it surrenders its electron.

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The total amount of energy conserved in the ecosystem is option 1, Some energy is transferred to the organisms, and the remaining energy is released into the ecosystem as thermal energy.

The sun provides all the energy in a forest ecosystem and every other ecosystem. Consumers and producers are the two main organisms that energy flows through and plants are producers. Plants are the only known producers to use the energy provided by the sun.

Energy is transferred to the plant organisms and the rest of it is expelled to the ecosystem to be used as thermal energy.

The full question is:

The image shows a rain forest ecosystem. The energy from plants, or producers, acts as the starting point of energy in the ecosystem. This energy is transferred to other organisms in the food web. In which two ways is the total amount of energy conserved in the ecosystem?

1. Some energy is transferred to the organisms, and the remaining energy is released into the ecosystem as thermal energy.

2. Bacteria eat the dead bodies of organisms to release the organisms’ stored energy into the atmosphere.

3. Some energy is transferred to the smaller organisms, and the rest is stored in the bodies of larger animals.

4. Some energy is transferred to the organisms, and the rest is released by plants in the form of carbon dioxide.

5. Bacteria eat the dead bodies of organisms, obtain all the energy, and store it in their bodies.

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An example of structural adaptation is a spike on a bearded dragon (option A).

Adaptation in biology is an instance of an organism undergoing change, or the structure or behavior that is changed.

Adaptation can either be structural or behavioural depending on the change that occurs:

An adaptation can be structural, meaning it is a physical part of the organism. An adaptation can also be behavioural, affecting the way an organism responds to its environment.

An example of a structural adaptation is the way some plants have adapted to life in dry, hot deserts. Plants called succulents have adapted to this climate by storing water in their short, thick stems and leaves.

Therefore, the possession of spikes on a bearded dragon is an example of structural adaptation.

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Answer:

I believe the answer is D

Explanation:

Answer:

parallel veins

Explanation:

The vascular structures of monocot leaves form parallel veins. 

The percentage change in the mass of the potato cylinders is both positive and negative because the concentrations of the sugar solutions differ.

In biology, osmosis refers to the movement of water molecules from regions of low solute concentrations or high water potentials to regions of high solute concentration or low water potential through a semi-permeable membrane.

Solutions with high solute concentrations as compared to the sap of cells are said to be hypertonic to the cells. The cells, will, therefore, lose water to hypertonic solutions.

Solutions with the same solute concentrations as cells are said to be isotonic to the cells. There is no net movement of water between such solutions and the cells.

Solutions with lower solute concentrations as compared to cells are said to be hypotonic to the cells. Such solutions lose water to the sap of the cells.

This is exactly what happened in the case of the solutions and the potato cylinders. Hypertonic sugar solutions will cause the potato cylinders to lose water and weigh less than their initial weights. This will return a negative percentage change in weight.

Hypotonic solutions, on the other hand, will cause the potato cylinders to gain water and weight more than their initial weights. This will return a positive percentage change in weight.

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Answer:

vein

Explanation:

The topic of discussion is Laser.

This is referred to as a device which has the ability to emit light through the process known as optical amplification. This feature is based on the stimulated emission of electromagnetic radiation and was discovered by Theodore Maiman.

He formed the basis of the creation of the first working laser through his work in which he shone a high-power flash lamp on a ruby rod with silver-coated surfaces.  This device functions by stimulating atoms such that light is emitted and amplifies it thereby forming a narrow beam of radiation.

This is used to perform different types of surgeries in the healthcare system and it is also used to weld and cut materials which makes it a very important tool in different fields.

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Lysosomes carry a variety of acid hydrolases that are active at the acidic pH kept within the lysosome, but not at the neutral pH of the cytosol.

Most of these enzymes are perfectly active only in the acidic lumen of lysosomes. Lysosomal pH is kept at 4.5–5 while cytosolic pH is 7–7.5. This pH difference indicates that proton absorption in lysosomes is almost 1000 times higher than in the cytosol. Lysosomes are hydrolytic enzymes. They need an acidic environment for proper work, they are mention to as acid hydrolases. These enzymes help in the disintegration of polysaccharides, proteins, lipids, nucleic acids, etc. These enzymes vital low pH compared to the cytoplasm to stay active.

So we can conclude that Lysosomes have an acidic interior pH of ~4.8 in contrast to the slightly basic cytosol (pH 7.2).

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They would not be able to grow muscle without bacteria because bacteria is unicellular microorganisms which have cell walls but lack organelles and an organized nucleus, including some that can cause disease.

To mention a few functions, the bacteria in our systems help break down the food we eat, assist us access nutrients, and neutralise toxins. Additionally, by shielding colonised surfaces from encroaching pathogens, they contribute significantly to the fight against diseases.

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