A single strand of DNA contains the following nine nucleotides in this order: ACT TAT GGA. What sequence of bases will be present on the complementary strand of DNA?

I attached a picture showing how to do it

Answer:

The correct answer is - arrange yellow and blue in the center as proton and neutron while red as electrons revolving in a different shell.

Explanation:

The carbon atom has 6 protons and 6 neutrons present in the nucleus of the atom while 6 electrons present in the shell. The inner shell has two and the outer most shell has 4 electrons.

One can represent all three color balls as an electron, proton, and neutron to model the carbon atom.

Answer:

D. Using only geothermal energy is a sustainable practice.

Explanation:

Geothermal energy is heat derived within the sub-surface of the earth.

The statement that depicts sustainable practice is using only geothermal energy (option D).

Sustainability refers to a way of configuring civilization and human activity so that society, its members and its economies are able to meet their needs and express their greatest potential in the present, while preserving biodiversity and natural ecosystems, planning and acting for the ability to maintain these necessary resources for future generations.

In sustainability practice, the safety of the environment is the major focus. Therefore, the use of natural resources such as geothermal energy is a sustainable practice.

Therefore, option D is correct.

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It is the first one in order for transcription to occur

Answer:

C) Littoral Zone

Explanation:

Turtles on the shoreline in vegetated areas as well as the shallows are looking for food. The best areas are any channels on the lake.

Answer: Littoral Zone

Explanation:

The littoral zone or the nearshore of a lake can be defined as the place along seashore. This zone has plenty of food options, some from the sea shore and some from water.

Turtles are mostly found in this region so that they can eat food from water as well as from the vegetation that lies at the shoreline.

Hence, the correct answer is option C

Answer:

I think it is D

Explanation:

Driven by convection, the air currents will most likely move from the land towards the water as the warm air over the heated land rises and the cool air over water descends.

Based on your question, the air currents will most likely move from the land toward the water. This movement is driven by convection, a process by which heat is transferred within fluids. When the land is heated by the Sun, the air above it also gets warm. This warm air is less dense, which causes it to rise. Meanwhile, the cool air above the water which is denser descends creating a pressure difference. To equalize this pressure difference, the warm air above the land moves towards the cool air above the water, contributing to the air currents.

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DNA is negatively charged due to its phosphate groups. Gel electrophoresis has one side that is positive and other that is negative. Once dna fragments are placed inside. The bigger fragments will move towards the positive side since positive is attracted to negative.

Answer:

For the separation of DNA fragments we use gel electrophoresis.

Explanation:

Since DNA fragments are negatively charged molecules they can be separated by forcing them to move towards the positive electrode anode under an electric field through a medium or matrix. The most common matrix is agarose. The DNA fragments separate according to their size through sieving effect provided by the agarose gel. Hence, the smaller the fragment size, the farther it moves. The separated DNA fragments can be visualized only after staining the DNA with a compound known as ethidium bromide followed by exposure to UV radiations. You can see the bright orange colored bands of DNA in a ethidium bromide stained gel exposed to UV light.

Answer:

tundra

Explanation:

The tundra is a biome in which there are no large trees, and the ones that are present are small as a typical grass. The majority of the plants are nonwoody ones. The climate is very cold throughout most of the year, so the animals that are able to make borrows are using them for the majority of the year, as it is much warmer below the ground than on the surface. If we take the way of lifestyle the prairie dog has and what it requires, then it will not be weird if an animal with very similar characteristics is found living in the tundra. The basic conditions seem to very similar, so an animal that is prairie dog-like, will only need slight adaptations in order to survive in that environment, mostly thicker fur, and ability to have a long hibernation.

DNA manages all the cells activities and "tells" them what to do. DNA also gives coded regulations for the strawberry so that it can create proteins.

Humans and nearly all other species carry their genetic information in DNA, also known as deoxyribonucleic acid. The DNA of an individual can be found in almost all of their cells.

The majority of DNA is found in the cell nucleus (where it is known as nuclear DNA), but there is also a tiny quantity of DNA in the mitochondria (where it is called mitochondrial DNA or mtDNA).

Adenine (A), guanine (G), cytosine (C), and thymine (C) are the four chemical bases that make up the code that stores the information in DNA (T). More than 99 percent of the 3 billion bases that make up human DNA are the same in every person.

Therefore, DNA manages all the cells activities and "tells" them what to do. DNA also gives coded regulations for the strawberry so that it can create proteins.

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Answer:

Chemical Energy is released when bonds form in a chemical reaction, often producing heat as a by-product.

Mechanical Energy is the sum of kinetic and potential energy in an object that is used to do work. In other words, it is energy in an object due to its motion or position, or both.

Thermal Energy is what we call energy that comes from the temperature of matter. The hotter the substance, the more its molecules vibrate, and therefore the higher its thermal energy.

Electrical Energy is caused by moving electric charges called electrons. The faster the charges move, the more electrical energy they carry.

Explanation:

Hey! I took the Penn foster exam, and i answered (a). I got it wrong, so I tried to find the correct answer. I’m pretty sure the answer is (b), and here’s some text from the Penn foster lesson.

“Unfortunately, nuclear fusion can't be used in nuclear power plants as the energy required to start a fusion is very large. The energy required to start a fusion reaction cannot be generated in a controlled manner.”

Anyways, hope this helps:) If this is wrong, please comment and tell me the correct answer.

Soil considered as an abiotic factor and a biotic factor. Because the soil is made out of dead organisms and dead twigs in also contains gravel and a biotic factor is features of the ecpsystem that are living or once were alive. that would be the dead organisms and twigs. abiotic factor are nonliving things in the organisms like the gravel.

Answer:

yes

Explanation:

There are two categories of these factors: abiotic and biotic. Abiotic factors are the non-living parts of the environment that can often have a major influence on living organisms. Abiotic factors include water, sunlight, oxygen, soil and temperature

Answer:

It should be D but selective breeding would work because of the selection of dog breeders trying to get new dogs such as a cockapoo which is a cocker spanole and a poodle. Also many other dog breeds that were selected to try out and breed.

Explanation:

Answer:

B. Selective breeding

Explanation:

Selective breeding refers to mating between parent organisms having desired features. This is done to obtain the progeny carrying the desired features from both parent organisms.

Selective mating between existing varieties of dog carrying desired traits gave rise to many new varieties that had features of both the parent varieties. Continued selecting breeding between existing varieties produced several new varieties of dogs.  

Answer: D. nuclear

Explanation:

Nuclear types of nonrenewable fuel sources requires the storage of radioactive waste, hence option D is correct.

Uranium is a nonrenewable energy source that may be used to divide its atoms into heat and eventually electricity through a process known as nuclear fission.

The element uranium is the one that is most frequently employed in nuclear power reactors. Nuclear power plants typically employ U-235, a highly uncommon form of uranium.

A non-renewable resource is uranium. Around the world, generating power via nuclear energy is a common practice.

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Scientists link increased hurricane strength with the help of both multi-natural cycles as well as warm ocean water from global warming.

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One cat carries heterozygous long haired traits SS and its mate carries homozygous short haired traits ss

a trait that is always expressed. ... One cat carries heterozygous, short-haired traits (Ss), and its mate carries homozygous long-haired traits (ss). Use a Punnett square to determine the probability of one of their offspring having short hair.

Using a Punnett square, the probability of an offspring from a heterozygous short-haired (Ss) and homozygous long-haired (ss) parent having short hair is 50%, since the resulting genotypes would be Ss and ss in equal proportions.

To determine the probability of an offspring having short hair from a parent carrying heterozygous short-haired traits (Ss) and another carrying homozygous long-haired traits (ss), we use a Punnett square. When S (short hair) is dominant over s (long hair), the possible genotypes for their offspring are Ss and ss.

The Punnett square is as follows:

Therefore, there is a 50% chance that one of their offspring will have short hair.

because the world is spinning at a different angle and speed as it its orbiting the sun.

Stars appear to move across the sky at night because Earth spins on its axis and it is moving around the Sun. Because the Earth spins half a turn in a night, a star visible low in the east early in the evening will appear to rise and move in an arc across the southern sky and set in the west before morning. Stars in the center of the southern sky will disappear below the western horizon halfway through the night. Also, other stars will rise in the east all through the night. The stars that can be seen are always in the sky at some time during the day, but some rise while the sun is in the sky and are hidden by the glare of the bright sky.

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Answer:

Cellular respiration is the process of breaking sugar down into a form that the cell can utilize as energy.

Explanation:

This happens in all types of life. Cellular respiration takes in food and uses it to produce ATP, a chemical which the cell uses for energy. Typically, this process uses oxygen and is known as aerobic respiration.

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Low levels of oxygen in/by the root zone causes soil & plants to turn deficient and die .

another reason is because anaerobic microbes that have gotten waterlogged create a toxic/bad waste that harms its surrounding living plants.

Hemoglobin, found in red blood cells, is a protein made up of four subunits and heme groups that bind oxygen, allowing it to transport oxygen throughout the bloodstream.

Hemoglobin is a protein found inside red blood cells and is responsible for carrying oxygen (O2) to cells and carbon dioxide (CO2) to the lungs. It is made up of four symmetrical subunits and four heme groups that contain iron, which binds oxygen. The presence of iron gives blood its characteristic red color. Hemoglobin's structure includes two alpha subunits and two beta subunits, each of which can bind to an oxygen molecule, allowing the entire hemoglobin molecule to carry up to four oxygen molecules.

Answer:

1. D

2. B

3. A

4. A

Final answer:

The D. domain contains the largest diversity of organisms, B. Phylum is not a domain, species are the most closely related organisms, and the scientific name of an organism consists of its A. Genus and Species.

Explanation:

In biological classification, the hierarchy of categories from most inclusive to most specific is: domain, kingdom, phylum, class, order, family, genus, and species. The answers to the questions presented are as follows:

The binomial nomenclature is the system of nomenclature in which each species is given a unique name that consists of two parts, the generic name (genus) and the specific name (species).

They all attack different parts of the body. Dermatitis is on the skin, gastritis deals with the intestines, and bronchitis is affecting the airways including the lungs. *What is the third answer choice?*

Answer:

the answer is D. All three patients have inflammation but in different areas of the body.

Explanation:

Answer:

Dna

Explanation:

The nucleus is surrounded by a membrane. Prokaryotic cells do not have a nucleus

Prokaryotic cell don't have any membrane bound organelles but they do have a nucleus. Thus, the correct option is B.

Prokaryotic cells are defined as the cell which single-celled, non bound organelle microorganisms known to be the earliest on earth. Prokaryotes comprises bacteria and archaea.

The photosynthetic prokaryotes comprises cyanobacteria that perform photosynthesis. A prokaryotic cell comprises of a single membrane and hence, all the reactions occur within the cytoplasm. The below diagram shows a prokaryotic cell.

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Final answer:

Younger men typically have the highest percentage of body water content due to greater muscle mass and lower body fat compared to women. As age increases, the percentage of body water generally decreases for all adults.

Explanation:

The question pertains to the percentage of body water content in different demographics. Water accounts for a significant portion of the human body, constituting about 50-70% of an adult's body weight. The water content is inversely related to the fat content, which means that individuals with less body fat tend to have a higher percentage of body water. Considering that men have greater muscle mass and a lower body fat percentage compared to women, and because muscle tissue contains more water than fat tissue, younger men typically have a higher percentage of body water than younger women. As we age, the percentage of body water declines to as low as 45% in older adults. Therefore, between younger women, younger men, older women, and older men, younger men would generally have the highest percentage of body water content.

Answer:

b

Explanation:

Answer:

25%

Explanation:

Facilitated Diffusion

Active transport uses carrier proteins to move molecules against a concentration gradient, requiring energy in the form of ATP, as seen in the sodium-potassium pump of nerve cells.

The process that uses proteins to move molecules against a concentration gradient is known as active transport. During active transport, carrier proteins or pumps use energy, usually in the form of ATP (adenosine triphosphate), to move substances from an area of low concentration to an area of high concentration. This is crucial for maintaining the necessary concentrations of ions and other substances for cell function, despite the passive movements that tend to even out concentrations.

Examples include the sodium-potassium pump in nerve cells, which is essential for transmitting messages to the brain.

Answer:

Option A ,the US is a net exporter of fossil fuels

Explanation:

In the recent time, the prices of fossil fuels (i.e crude) oil fell very low  due to which the prices of processed petroleum products such as petrol, diesel, etc reduced to the a very low value in last 30 years. This all happened because new oil reserves have been explored in US  due to which the the price of crude oil has dropped globally.

In developing countries like India, price of petrol and diesel is one of the political agenda.

Thus, fossil fuel use in the United States make the u.s. vunerable to the political wishes of foreign countries

Option A is correct

U.S. vulnerability due to fossil fuel reliance is linked to the fact that it imports much of its petroleum, making it subject to foreign pricing and political pressures (option c).

The reliance of the United States on fossil fuel imports makes the nation vulnerable to the political whims of foreign countries primarily because the U.S. imports a substantial portion of its petroleum from these countries. This dependence on foreign oil means that the US is susceptible to fluctuations in fuel prices, determined by the exporting countries or global markets (option c). Additionally, the geopolitics surrounding fossil fuels can compel the United States to engage in foreign policies or military actions to secure energy resources, influencing its political and economic decisions.

Historically, the United States has developed policies to reduce reliance on Middle Eastern oil by diversifying its sources, turning to countries like Canada, Mexico, Venezuela, and Nigeria. The presence of oil reserves within a nation can have a massive economic impact, providing jobs and dividends to investors, influencing global geopolitics, and sometimes leading to power imbalances and conflicts over resources.

Photosynthesis and cellular respiration both involve the metabolic pathway of carbohydrates, use electron transport chains for energy capture, and are part of a biological cycle linking the two with the exchange of oxygen, glucose, carbon dioxide, and water.

The characteristics that photosynthesis and cellular respiration have in common include:

Both processes involve the metabolic pathway of carbohydrates to produce energy, with photosynthesis building carbohydrates and cellular respiration breaking them down.

They both utilize an electron transport chain to capture energy necessary for other reactions.

These processes form a cycle where photosynthesis produces oxygen and glucose needed for cellular respiration, while cellular respiration generates carbon dioxide and water, which are inputs for photosynthesis.

Additionally, while photosynthesis occurs in the chloroplasts of plant cells, cellular respiration takes place in the mitochondria of all eukaryotic cells, illustrating that both rely on specialized cell organelles to occur.

Answer:

A towel

Explanation:

towel or napkin

____________

It is an example of ecosystem. The lion eats its prey and the vulture then eats whatever is leftover. The vulture benefits and the lion is not harmed and doesn't benefit from it. A relationship in which one organism benefits and the other is harmed.

Answer:

ammonium

Explanation:

Plants absorb nitrogen in the form of nitrate ions and  ammonium(NH4^+) ions.