DNA has the sequence GTA. If this were transcribed into mRNA, what would the mRNA codon look like?
A.CAU
B.UAC
C.UUG
D.ATG

Answer:

OTU count in the samples collected.

Explanation:

Species richness refers to different kind of organisms present in the garden. There can be more than one type of micro organisms present in the garden area. To identify the different kinds of microbial communities present in the garden area a sample should be collected and then and OTU count test needs to be performed to ensure there are certain types of microbial present.

Answer:

13. A group of Roaches moving in a group

14. Stepping on the Roaches to kill them

Answer: First image shows 3 groups with 14 Roaches in each group moving towards an human.

Second image shows the human stepping on the middle group of roaches.

Explanation: Roaches are nasty. Get an exterminator, ya nasty.

Answer:

virus grow and reproduce only in the host cell. they evolve according to the environment condition accordingly time passes. they also use genetic code the answer is the need for material and energy

The characteristic of living things that is lacking in a virus can be the need for materials and energy. So the correct option is C.

A virus is a contagious microorganism made up of a protein-coated piece of nucleic acid, usually DNA or RNA. A virus can't multiply by itself; it has to infect cells in order to utilize the host cell's components to generate copies of itself. A virus frequently causes harm to the host species by destroying the host organism in the process. AIDS, COVID-19, measles, and smallpox are well-known examples of viruses that cause human illness.

Viruses may infect people. But in reality, viruses infect a wide variety of creatures. For example, there are viruses that infect fungi and viruses that infect bacteria. By researching viruses that infect so many different species, we may learn a lot about just how viruses keep themselves alive.

That actually advances our understanding of human illness. However, the viruses that affect people make up a very small portion of all viruses. The viruses that infect bacteria and are frequently referred to as phages would have the greatest abundance. They have many of the same characteristics in common, yet they are far more numerous. The mechanisms by which viruses infect people will be thoroughly investigated in the future, as will any potential methods of preventing viral replication in human cells.

Therefore, the correct option is C.

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Worms help the soil by breaking down organic debris, so if plants are planted in it, they will grow strong and healthy. Worms do this by supplying the soil with the nutrients it needs.

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Answer:

nucleosomal histones (H2A, H2B, H3 and H4) strongly interact among them and with DNA in order to form nucleosomes. In consequence, it is expected that mutations in histone genes have deleterious effects on the organization of the chromatin

Explanation:

Nucleosomes are well known to be the basic structural units of DNA packaging in eukaryotic cells. Each nucleosome consists of an octamer of histone proteins, i.e., two copies each of the histones H2A, H2B, H3, and H4, and one segment of DNA wrapped around this octamer of histones. Chromatin organization is fundamental o regulate key cellular processes, including gene expression and genome maintenance. In consequence, it is expected that histone proteins are evolutionary well conserved across the eukaryotic kingdom.

Answer:

abiotic and biotic factors

Explanation:

abiotic factors are things like sunlight, soil, minerals, ect.

biotic factors are things like plants, animals, fungi, ect.

Answer:

1. During DNA replication, an open section of DNA, in which a DNA polymerase can replicate DNA, is called a replication fork.

2. After replication is complete, the new DNAs, called daughter DNA , are identical to each other.

3. The enzyme that can replicate DNA is called DNA polymerase.

4. Okazaki fragments are the short sections of DNA that are synthesized on the lagging strand of the replicating DNA.

5. The new DNA strand that grows continuously in the 5' to 3' direction is called the leading strand.

Explanation:

Hope it helps.

DNA replication is the process by which a cell makes an exact copy of its DNA.

It is a fundamental process in all living organisms that allows for the accurate transmission of genetic information from one generation to the next. During DNA replication, the double-stranded DNA molecule unwinds and separates into two individual strands.

Each of the original strands serves as a template for the synthesis of new DNA occurs. This replication process follows a semi-conservative mechanism.

The correct options are:

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Answer:

A necessary condition for the changes in the finch populations to occur in response to the drier climate would be:

- Variation in beak shape within the initial population: There must have been existing genetic variation in the population of finches regarding beak shape. Some finches would have had the beak shape that provided an advantage in obtaining food resources in the drier climate, while others would have had different beak shapes.

Without this initial variation in beak shape, there would be no opportunity for natural selection to act and favor individuals with the advantageous beak shape. Therefore, the presence of genetic variation within the population is necessary for the changes in the finch populations to occur.

Based on the theory of natural selection, the necessary condition for the changes in the finch populations to occur is limited food resources. Option B

Natural selection is the process by which populations of living organisms adapt and change over time.

Natural selection occurs when there is variation within a population of a species, and some individuals are better able to survive and reproduce than others.

These individuals are more likely to pass on their genes to the next generation, and the population will gradually change over time.

The above answer is based on the full question below;

Over time, the climate of an island became drier, which resulted in changes to the populations of various island finch species. Finch populations with a certain beak shape thrived, while those not having that beak shape decreased, Which of the following describes a necessary condition for these changes in the finch populations to occur?

A. fewer mutations B. limited food resources C. limited beak variations D. overproduction of offspring

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A primary consumer obtains its energy by consuming producers, which is the third option, as producers are organisms such as plants and algae that can convert sunlight into energy through the process of photosynthesis.

When a primary consumer eats a producer, it breaks down the organic matter in the plant or algae and uses the energy stored within it to fuel its own cellular processes. This energy is transferred from the producer to the primary consumer, allowing the primary consumer to grow, reproduce, and perform other life functions. It is important to note that primary consumers are themselves consumed by other organisms, which are known as secondary consumers. This forms the basis of the food chain or food web in an ecosystem, where energy is transferred from producers to primary consumers to secondary consumers, and so on.

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The post-collision velocity of the ball is 0.25m/s. The ball follows the law of conservation of momentum.

The law of conservation of momentum states that the amount of momentum remains constant. The momentum is neither created nor destroyed, but can only transform through the action of forces as described by Newton's laws of motion.

Initial Momentum = Final Momentum

m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂

Here, the external force is zero, so this will follow the law of conservation of momentum of system.

The mass of ball (m₁) = 4kg and with initial speed (u₁)= 9m/s

mass of pin (m₂) = 3.0kg with zero initial speed

Now, let the final speed of ball = v₁ and final speed of pin (v₂) = 12m/s

Now, by applying momentum conservation

m₁u₁ + m₂ × 0 = m₁v₁ + m₂v₂

4.0kg × 9.0m/s = 4.0kg × v₁  + 3.0kg × 12m/s

36.0kgm/s - 36.0kgm/s = 4.0 × v₁

So, final speed of ball (v₁) = 0.25m/s

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The effects these activities have on ecosystems can be different from one activity to another. For example, hunting and fishing can be harmful to species populations, causing them to reduce the number of individuals, as happens with all-terrain vehicles, and personal watercraft, but in a relatively less harmful way. On the other hand, activities, such as ecotourism can benefit species due to the increased visibility of them and the increased general concern by humans.

Answer:

A Protista is the answer

Balance larger molecules before smaller ones, is correct answer.

What is Chemical Equation?

A chemical equation is a symbol- and formula-based symbolic representation of a chemical reaction, with the reactant entities supplied on the left side and the product entities given on the right side.

Symbols are used in chemical equations to denote things like the direction of a reaction and the physical states of the reacting parties. In the year 1615, the French chemist Jean Beguin created the first chemical equation.

Chemical equations can be used to illustrate chemical reactions on paper; one such example is shown below (for the reaction between hydrogen gas and oxygen gas to form water).

2H2 + O2 → 2H2O

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Answer: All answer choices. Short, black fur.. long, black fur.. short, brown fur & long, brown fur

Explanation:

Answer:

Two true-breeding guinea pigs were crossed. One had short, black fur, and the other had long, brown fur. Fur length is carried on one gene and fur color on another. Select all offspring phenotypes that you would expect in later generations if…

. . . the genes are nearby on the same chromosome.

short, black fur

long, black fur

short, brown fur

long, brown fur

A short-haired black guinea pig and a long-haired brown guinea pig.

Photos by Katrina and Ilovebutter

. . . the genes assort independently.

short, black fur

long, black fur

short, brown fur

long, brown fur

Explanation:

Explanation:

increase crop yields by help fertilize the ova of plants

Answer:

Pollinators allow plants to fruit , set seed and breed . This in turn provides food and habitat for a range of other creatures .

If observation had not been restricted to the tip of the onion root, then the results would be different because only in this meristematic region the cells continue in the process of division, and cell division has different rates at different tissues.

Mitosis is the cell division process in which somatic body cells are generated in a multicellular organism, which is generated at different time rates in different parts of the body.

Therefore, with this data, we can see that mitosis is not a uniform process in all the body parts of a multi-cellular organism.

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Answer:

Explanation:

When a meal containing fried fish and toast bread is consumed, it goes through a series of processes in the digestive system of a human. Here's a general description of how the components are processed:

1. Mouth: The process of digestion begins in the mouth. Chewing breaks down the toast bread and fish into smaller pieces, while saliva mixes with the food to start the breakdown of carbohydrates.

2. Esophagus: The chewed food, now called a bolus, is swallowed and travels down the esophagus through peristaltic contractions. The esophagus carries the food to the stomach.

3. Stomach: The stomach is responsible for further mechanical and chemical digestion. It mixes the food with stomach acid and digestive enzymes to break down proteins. The fried fish is broken down into smaller pieces through mechanical churning.

4. Small Intestine: The partially digested food leaves the stomach and enters the small intestine. Here, bile from the liver and enzymes from the pancreas break down fats, while other enzymes continue the breakdown of proteins and carbohydrates. Nutrient absorption occurs through the walls of the small intestine and is facilitated by small finger-like projections called villi.

5. Large Intestine: Any remaining undigested food, as well as water and electrolytes, pass into the large intestine. The large intestine absorbs water and electrolytes while forming waste material known as feces.

6. Rectum and Anus: The feces are stored in the rectum until elimination through the anus occurs during a bowel movement.

Throughout this process, various digestive enzymes and gastric juices are secreted at different stages to facilitate the breakdown and absorption of nutrients. The fried fish and toast bread are broken down into smaller molecules, such as proteins, carbohydrates, and fats, which are then absorbed into the bloodstream to provide energy and nourishment for the body.

1. Alkenes are hydrocarbons that contain carbon-carbon double bonds.

it has functional group c=c and the IUPAC nomenclature for alkenes includes the prefix 'ene' to parent alkane for example - ethene, propene, etc.

2. Alkynes are hydrocarbons that contain carbon-carbon triple bonds.

it has functional group c=c (triple bond) and IUPAC nomenclature for alkenes includes the prefix 'yne' to parent alkene for example- ethyne, propyne, etc.

3. Alcohol is a organic compound which contains functional group (- OH)

hydroxyl functional group bounded to satorated hydrocarbon.

IUPAC nomenclature for alkenes includes the prefix 'ol' to parent alkene for example- ethanol, propanol, etc

4. aldehyde are organic compounds in which a carbon atom shares a double bond with an oxygen atom, a single bond with a hydrogen atom, and a single bond with another atom or group of atoms

aldehydes are named as derivatives of the longest carbon chain containing the aldehyde group. Thus, HCHO is named as a derivative of methane, and CH3CH2CH2CHO is named as a derivative of butane. The name is formed by changing the suffix -e of the parent alkane to -al, so that HCHO is named methanal.

Ketones contain a carbonyl group −C(=O)− (which contains a carbon-oxygen double bond C=O). prefix 'one' os added in nomenclature for example, acetone.

5. a carboxylic acid is an organic acid that contains a carboxyl group (C(=O)OH)[1] attached to an R-group.

Answer:

no

Explanation:

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1. The correct answer is B.

2. The correct answer is A.

The codon sequence on the mRNA strand determines the amino acid sequence of the polypeptide.

The coding section is the portion of the DNA that is also known as a gene. Genes are the functional units of DNA that provide the instructions for making proteins. They are composed of coding cells, also known as exons, that contain the information needed to build the polypeptide, and non-coding sections, also known as introns, that do not.

The codon sequence on the mRNA strand is translated by the ribosome during protein synthesis. Each codon, which is a sequence of three nucleotides, corresponds to a specific amino acid. The ribosome reads the codon sequence on the mRNA strand and adds the corresponding amino acids to the growing polypeptide chain. This process is called translation.

In DNA, genetic information is encoded in the sequence of nucleotides, which are the building blocks of DNA. Genes are specific segments of DNA that contain the instructions for making a specific protein. These instructions are encoded in the sequence of nucleotides within the coding sections of the DNA, also known as exons. The non-coding sections, also known as introns, do not contain instructions for making proteins, but they play important roles in the regulation of gene expression.

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Answer:

A.

Explanation:

Kinetic energy turns tidal turbines to create electrical energy.

Kinetic energy is a type of motion energy, where potential energy can be defined as energy stored to be utilized.

In conclusion, kinetic energy turns tidal turbines to create electrical energy.

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Embryonated chicken eggs represents an in vivo method for cultivating viruses. (option c)

To cultivate viruses in a living system, an in vivo method is used. Among the options provided, embryonated chicken eggs are the most commonly used method for culturing viruses in a living organism.

HeLa cells: HeLa cells (a) are human cancer cells commonly used in laboratory research, but they are not a living organism suitable for virus cultivation.

Pure bacterial cell cultures: Bacterial cell cultures (b) are often used to study bacteriophages, which are viruses that infect bacteria. However, this method involves culturing viruses in bacterial hosts and does not involve a living organism.

Embryonated chicken eggs: Embryonated chicken eggs (c) are a widely used method for virus cultivation. In this method, viruses are injected into the developing embryo, which provides an environment for viral replication. The embryos provide a controlled and nutrient-rich environment for the viruses to grow and propagate.

Lung cell culture: Lung cell culture (d) involves growing lung cells in a laboratory setting. While this method can be used to study certain viruses, it is an in vitro (outside a living organism) method rather than an in vivo method.

In conclusion, the in vivo method for cultivating viruses among the options provided is embryonated chicken eggs. This method provides a living system in which viruses can replicate and propagate. (option c)

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Answer:

The main differences between greenhouse gases and air pollutants are how they affect our health and the environment. ... The main problems caused by air pollution occur close to the ground, such as soiling of buildings and producing health effects, but greenhouse gases affect the whole of the atmosphere.

Explanation:

greentree have a air and pollutants help us with our health

Answer:

a green house gas is a gas that contributes to the greenhouse effect by absorbing infrared radiation. Carbon dioxide and chlorofluorocarbons are examples of greenhouse gases while a particulate  are microscopic particles of solid or liquid matter suspended in the air

Explanation:

A reference point is defined as the initial position of an object from which its motion is described.

This is used as a standard for evaluation or measurement of properties in a body.

Option A was chosen because the motion of the object is described through comparison with the initial position.

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A testable hypothesis is one that can be tested through empirical research, meaning that it is possible to gather evidence to support or refute it.

A hypothesis is a possible explanation that is proposed for a phenomenon that occurs in nature. In the scientific method, hypotheses are tested by collecting and analyzing data to either support or reject them.

A testable hypothesis could be formed from a question by using the following steps:

Identify the phenomenon that you want to study: Start by identifying the phenomenon that you want to study. This could be a relationship between two variables or a question about how something works. Develop a research question: Based on the phenomenon you want to study, develop a research question that can be answered through empirical research. This question should be specific and should be able to be tested using scientific methods. Formulate a hypothesis: Using your research question, formulate a hypothesis that can be tested through empirical research. This hypothesis should be a statement that proposes a possible explanation for the phenomenon you are studying. It should be clear, concise, and testable.

Test the hypothesis: Once you have developed a testable hypothesis, you can design and conduct experiments to gather data that will either support or refute the hypothesis. If the hypothesis is supported by the data, you can consider it to be a valid explanation for the phenomenon you are studying. If the data refute the hypothesis, you may need to revise it or develop a new hypothesis.

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Answer:

C!!

Explanation:

It's not B because it's located in the great plains. Not D because in 50 years, 70% of the aquifer will be gone. Not A because water use isn't regulated.

Ogallala Aquifer is the rock holding the groundwater in the Great Plains of America. The Ogallala Aquifer is running out of water.  Thus, option C is correct.

Ogallala Aquifer is an underground layer of water that is held by the rocks, pebbles, and gravel that make the water well above the surface. It is not beneath the East Coast but is situated on the Great Plains of the United States.

It has been reported that the water usage of the Ogallala Aquifer is not regulated and hence it does not have enough water to last up to 6,000 years. At approx 70%, the water of the aquifer will be soon gone resulting in the deprivation of the water.

Therefore, option C. the Ogallala Aquifer is running out of water is correct.

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Answer:

Answers here just click https://dffrg.com

Explanation:

:)

Answer: A. Heirloom crops

In the ladder analogy of the DNA molecule, the "steps of the ladder" are paired nitrogen bases.

The DNA molecule is made up of two strands of nucleotides that create a double helix as they coil around one another. The sugar molecule, the phosphate group, and the nitrogenous base are the three parts that make up a nucleotide. The nitrogenous bases serve as the ladder's rungs or "steps," pairing with one another to form hydrogen bonds that hold the DNA molecule's two strands together.

The nitrogenous bases adenine (A), thymine (T), cytosine (C), and guanine (G) are the four types found in DNA (G). The genetic code of an organism is made up of base pairs, which always couple adenine with thymine and cytosine with guanine. The genetic information that is transferred from one generation to the next is determined by the arrangement of these base pairs along the DNA molecule.

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