Choose all that apply below to DNA:

double helix


takes the original code out of the nucleus and translate it into proteins


contains the original code to make proteins


contains thymine


contains uracil


contains guanine


single strand helix


contains adenine


contains cytosine

Answer:

The density- independent limiting factors that can affect a population include food, predation, toxic waste and environmental disasters.

Explanation:

Density independent factors like natural calamities which include volcanic eruptions, hurricane, floods, earthquake, etc are not influenced by population density change. For example, the current rampaging bush fire in Australia has caused a lot of damage to different animal and plant species. Many populations of species have become endangered and others are wiped off.

The quality of nutrients available in an environment affect the growth of organisms in it. The lower the quality of nutrients, the higher is the environmental stress. E.g in Lake Erie, the growth of algae was restricted due to the extensive presence of phosphorus in the water bodies.

Pollution is also a big reason for decrease in the density of populations. E.g Amphibians such as toad, frog are susceptible to pesticides which flow into the water bodies. It reduces their ability to reproduce and inhibits their growth.

When the number of predators in a given area increase, the population of prey decreases. Extensive predation can lead to the extinction of prey species.

The differences in heat give rise to three different zones, Torrid, Temperature, and Frigid Zone.

There are major five types of vegetative patterns in the world these are forest, grassland, Tundra desert and Ice sheet. In these regions, different types of vegetation are grown.

The growth of vegetation depends on the amount of heat received. The difference in heat gives rise to major 3 zones. These zones are:

1. Torrid zone- this zone lies between 0 degrees to 23 half a degree north and south to the equator. The sun shines exactly overhead at the places near the equator and in the tropics. Therefore the equatorial and tropical regions receive maximum insolation.

2. Temperate zone- this zone lies between 23 half a degree to 66 half degrees north and south of the equator. This zone experiences the slanting rays of the sun. Due to the spherical shape of the earth, the amount of insolation received by this region is less.

3. Frigid zone- this zone is located between 66 half degree and 90 degrees north and south to the equator. This zone experiences extremely slanting rays of the sun over a large distance. Hence the amount of insolation received is very less.

Higher glucose concentrations usually lead to more ATP being produced due to more fuel for cellular respiration. However, actual ATP levels depend on various factors, including the cell's energy needs and current ATP and ADP concentrations. A feedback mechanism also exists to prevent overproduction of ATP when it's already abundant.

The relationship between the concentration of glucose in the culture medium and the ATP concentration in cells is quite direct and can be understood through biological processes involved in cellular energy production. Glucose is the primary energy source for cells, and it is broken down through a process known as glycolysis to produce ATP, the energy currency of the cell.

As glucose concentration increases in the culture medium, more glucose is available for uptake by cells. This glucose is moved down a concentration gradient into the cell through facilitated diffusion using carrier protein channels. Inside the cell, glucose is broken down by glycolysis, transferring some of the energy in glucose to ADP to form ATP. Thus, an increased glucose concentration typically leads to increased ATP production, as there is more fuel for cellular respiration.

However, it's important to note a feedback mechanism in which high ATP levels can inhibit further ATP production, thereby preventing wasteful use of resources when ATP is already in abundant supply. In contrast, increased levels of ADP compared to ATP can trigger the cell to produce more ATP through glucose catabolism. Therefore, while a higher glucose concentration generally enables greater ATP production, actual ATP levels in cells depend on multiple factors, including the cell's energy needs and existing ATP and ADP levels.

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Answer:

A

Explanation:

Glucose is used which is the chemical energy, then his muscle moves which is the mechanical energy

When a skateboarder makes jump the energy transformed in chemical energy in from his food is transformed into mechanical energy.  Thus,option A is correct.

The transfer of energy takes place in three ways radiation, conduction, and convention.

The term energy transfer shows the changes in energy  that occur in and between organism within ecosystem.

When skateboarder jump it's energy transformed from potential energy to kinetic energy and thermal energy. The skateboarder has gravitational potential energy to going down the rap. Moving to ice skates have kinetic energy, which is known as energy of motion and then transformed to thermal energy due to friction.

The used glucose in the process is chemical energy and movement of muscle during skating is mechanical energy.

Therefore, when a skateboarder makes jump the energy transformed in chemical energy in from his food is transformed into mechanical energy.  Thus, option A is

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Final answer:

Prokaryotes predate eukaryotes according to the endosymbiotic theory which posits that eukaryotic cells evolved from prokaryotic cells forming symbiotic relationships. This theory is supported by the presence of prokaryote-like DNA in organelles like mitochondria and chloroplasts and fossil evidence that suggests prokaryotes were already present on Earth billions of years before eukaryotes evolved.

Explanation:

Scientists believe that prokaryotes existed earlier than eukaryotes based on the endosymbiotic theory, which suggests that eukaryotic cells evolved from a symbiotic relationship between two or more prokaryotic cells. This is further supported by mitochondria and chloroplasts having their own DNA similar to free-living prokaryotes and features such as double membranes and genes that are more closely related to those found in prokaryotes. According to the endosymbiotic theory, these organelles were once independent prokaryotic organisms that became permanent residents within larger host cells, leading to the evolution of eukaryotes. As eukaryotic cells are now known to possess complex internal structures and organelles, which presumably evolved through these endosymbiotic events, it is logical to infer that simpler prokaryotic cells predated them. The first eukaryotic cells are thought to have evolved about 2 billion years ago, much later in Earth's history compared to the ancient lineage of prokaryotes.

Answer:

It helps insure the survival of a species in a whole.

Explanation:

Allows different species, for example dolphins or meerkats, to mate and ensure survival in their habitats.

Answer:

The answer is "Solute molecules move across a cell membrane from areas of higher concentration to areas of lower concentration."

Explanation:

Simple diffusion specifically involves the movement of (small, uncharged) solutes across a cell membrane. Since diffusion is part of the passive transport umbrella, it also requires no energy since the solutes move down the concentration gradient - from areas of high concentration to areas of low concentration.

Hope that helps! :)

Solute molecules move across a membrane from areas of higher concentration to lower concentration is called diffusion. Therefore, option A is correct.

A chemical diffuses when it moves from one location of high concentration to another area of lower concentration. When gas and liquid particles randomly collide and disperse, diffusion takes place.

Diffusion aids in the flow of materials into and out of cells. Until the concentration is the same everywhere, the molecules travel from a region of higher concentration to an area of lower concentration. Diffusion occurs in gases and liquids because random molecular movement is a possibility.

Diffusion is the process by which solute molecules travel across a cell membrane from regions of higher concentration to regions of lower concentration. Therefore, option A is correct.

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Answer:

The right answer is C) open fully

A stomate consists of two kidney-shaped stomal cells (guard cell) that delimit the stoma or ostiole orifice. The latter opens more or less, depending on the needs, depending on the turgor of the stomatal cells.

When the guard cells are turgid, the thinner and more flexible outer wall expands more than the thicker and stiffer inner wall. The cells curl and the ostiole opens.

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Explanation:

Answer:

Biosphere

Explanation:

The biosphere is the collection of all biotic (living) factors of an area and the abiotic (nonliving) factors of an area.

Answer:

bioshere

Explanation:

bioshere im not gonna give u an explanan

Answer:

C

Explanation:

Fish rely on coral for shelter, food, and protection. Coral can also house fungi and algae which creates food for a variety of sea life. The coral acts as a place for sea life to be safe from any predators.

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Answer:

Newspaper is the most reliable source of information to make a claim valid.

Explanation:

A newspaper is always considered as the authenticated source of information. A news that is published in a newspaper is always regarded as a valid news because it is published from a government authorised and renowned newspaper publishing house. For example, if we want to claim a certificate or an authorisation, it will be considered acceptable if we publish it in a newspaper. So it is the most reliable information source to make a valid claim.

Answer: The correct answer is a journal ( B )

Explanation:

The reason is because a journal is a first hand source. First hand sources are known to be the most reliable. Meaning that this information was at some point written because of an experience or study!

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Answer:

The plasma membrane is responsible for maintaing B: homeostasis

Answer: b. Homeostasis

The Montreal Protocol efforts had the most impact on these changes.

Around 100 synthetic chemicals known as ozone depleting substances are governed under the historic multinational environmental accord known as the Montreal Protocol on Substances that Deplete the Ozone Layer (ODS).

These compounds, when released into the atmosphere, disrupt the stratospheric ozone layer, the screen that shields people and the environment from the sun's harmful UV radiation.

According to separate timelines for industrialized and developing nations (also known as "Article 5 countries"), the Montreal Protocol gradually reduces use and production of the various ODS.

Therefore, The Montreal Protocol efforts had the most impact on these changes.

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Answer:

answer, I guess, is C.primary succession

Photosynthesis is defined as the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.

Photosynthesis is defined as the process used by plants and other organisms to convert light energy into chemical energy, which is then released through cellular respiration to fuel the activities of the organism. The chemical energy which is stored in the form of sugars, which are created from water and carbon dioxide.

In this process green plants and some other organisms convert light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into organic compounds rich in oxygen and energy.

Thus, Photosynthesis is defined as the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.

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Answer:

Polarity.

Explanation:

Solubility is defined as the upper limit of solute that can be dissolved in a given amount of solvent at equilibrium. In such an equilibrium, Le Chatelier's principle can be used to explain most of the main factors that affect solubility. Le Châtelier's law dictates that the effect of stress upon a system in chemical equilibrium can be predicted in that the system tends to shift in such a way as to alleviate that stress.

The relationship between the solute and solvent is essential in determining solubility. Strong solute-solvent attractions equate to greater solubility, while weak solute-solvent attractions equate to lesser solubility. In turn, polar solutes tend to dissolve best in polar solvents, while non-polar solutes tend to dissolve best in non-polar solvents. In the case of a polar solute and non-polar solvent (or vice versa), it tends to be insoluble or only soluble to a minuscule degree. A general rule to remember is, "Like dissolves like."

Answer:

The Answer Is Temperature NOT Polarity

Explanation:

I Just Took The Test :3

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Answer:

directing the synthesis of proteins necessary for proper cell function.

Explanation:

The nucleic acids include DNA and RNA. The instructions on DNA are transcribed into messenger RNA. Ribosomes are able to read the genetic information inscribed on a strand of messenger RNA and use this information to string amino acids together into a protein thus nucleic acids directs the synthesis of proteins necessary for proper cell function.

Answer:

1. A monohybrid cross is a cross between first-generation offspring of parents who differ in one trait while a dihybrid cross is a cross between first-generation offspring of parents who differ in two traits

Answer:monohybrid crosses involve one gene; dihybrid crosses involve two genes.

Explanation:

Penn Foster

Continued human population growth could lead to environmental degradation and scarcity of resources like land and water due to the increasing pace at which the global population is growing.

A likely consequence of continued human population growth is the degradation of our natural environment and a potential strain on resources. This is due to an increase in the emission of greenhouse gases, especially from developing countries trying to improve their economic condition. As population continues to grow, the time it takes to add a substantial number of humans to the Earth is becoming shorter. For instance, it took 123 years to add 1 billion humans in 1930, but only 24 years to add two billion people between 1975 and 1999. This vector of growth may eventually exceed the carrying capacity of our planet, leading to repercussions such as a shortage of essential resources like land and water, presenting the threat of overpopulation.

It's worth noting that these scenarios are in part based on the concept of exponential population growth, wherein the population doubles in a fixed period of time. In reality, population growth rates can be slowed by factors such as increased access to family planning, education, and sustainable development methods. Ultimately, the threats posed by overpopulation underscore the need to manage our resources prudently and to curb population growth through effective and socially sensitive policies.

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Final answer:

Continued human population growth may lead to environmental degradation, heightened greenhouse gas emissions, food shortages, and socio-political challenges due to resource strain.

Explanation:

A likely consequence of continued human population growth is the change and degradation of the natural environment. As the population expands, there is a higher demand for resources, which can lead to deforestation, loss of biodiversity, and increased emission of greenhouse gases like carbon dioxide (CO₂), accelerating climate change. Countries around the world have made efforts to mitigate these effects by limiting emissions, but global consensus and effective international agreements are challenging to achieve. Additionally, population increase puts a strain on food supplies, potentially leading to widespread food shortages. Rapid population growth, paired with environmental stress, could also precipitate socio-political issues, exacerbate global conflicts, and escalate problems like poverty and disease outbreaks.

Answer:

I don't think they are the same, but, they both do something to water.

One freezes water, and the other one boils water.

hOpE thIs HeLpS

Explanation:

Answer: Endoplasmic reticulam has the complex network that transports materials throughout the inside of a cell.

Explanation:

The endoplasmic reticulam are present in plants as well as in animals. They are connected as a network, by one another with the help of membranous canals, that are being filled with fluid. Since they transfers the materials throughout the cell, they are also known as the transport system of the cell or a pathway for the cells. These are continuous structures having outer nuclear membrane. They helps in the synthesis of the proteins, lipids, glycogen and also some steroids i.e. cholesterol, progesterone and testosterone.

Cellular respiration breaks down glucose to release energy, with carbon dioxide produced during the Krebs cycle.

Cellular respiration releases energy by breaking down glucose in the presence of oxygen. This complex process involves several stages: glycolysis, the Krebs cycle, and oxidative phosphorylation. The step in the oxidation of pyruvate that produces carbon dioxide is known as the Krebs cycle, also referred to as the citric acid cycle. During this cycle, each molecule of pyruvate (which is derived from glucose) is decarboxylated, releasing carbon dioxide as a byproduct.

The energy originally used to hold these molecules together is harnessed in the generation of ATP, which cells use for energy. In summary, cellular respiration converts the stored energy in glucose into a form that can be used by the cells, producing carbon dioxide and water as waste products.

Answer:

The answer is C) 75%.

100% is wrong

Some most important freshwater lakes and rivers in Georgia include Lake Lanier, Lake Allatoona, Lake Hartwell, and the Chattahoochee River.

"Some of the major freshwater lakes and rivers in Georgia include:

1. Lake Lanier (officially known as Lake Sidney Lanier) - It is one of the largest lakes in Georgia, located on the Chattahoochee River.

2. Lake Allatoona - A U.S. Army Corps of Engineers lake on the Etowah River in the northwestern part of the state.

3. Lake Hartwell - A man-made reservoir bordering Georgia and South Carolina on the Savannah, Tugaloo, and Seneca Rivers.

4. Lake Oconee - A reservoir located in central Georgia on the Oconee River.

5. Lake Sinclair - A man-made lake on the Oconee River in central Georgia, downstream from Lake Oconee.

6. West Point Lake - Another U.S. Army Corps of Engineers project that straddles the Georgia-Alabama border, located on the Chattahoochee River.

Rivers:

1. Chattahoochee River - Originating in the Blue Ridge Mountains, it flows southwest through Atlanta and forms the southern part of the Alabama-Georgia border.

2. Savannah River - Forming the border between Georgia and South Carolina, it flows southeast to the Atlantic Ocean.

3. Ocmulgee River - It begins in the central part of the state and flows south to Macon, where it joins the Oconee River to form the Altamaha River.

4. Oconee River - It flows south from Hall County and joins the Ocmulgee River to form the Altamaha River.

5. Altamaha River - One of the major rivers in Georgia, it is formed by the confluence of the Ocmulgee and Oconee rivers and flows to the Atlantic Ocean.

6. Etowah River - It flows through the northwestern part of the state and is a tributary of the Coosa River.

 These bodies of water are important for the state's ecosystem, economy, and recreational activities. They provide sources of drinking water, support agriculture, and offer opportunities for boating, fishing, and other outdoor recreational pursuits."

rRNA and tRNA is the two structure which combine in process of translation process.

Explanation:

Translation involves decoding a messenger. tRNAs is a specific amino acid and it pairs with mRNA codons which is inside the Ribosome. It covalently strung together. In this process each amino acid has a carboxyl and amino group.

Ribosome is catalyzed for this reaction and generate the one water molecule. It is a complex macro-molecule. It exists in the prokaryotes. Gene make the protein through the translation process. In translation process mRNA is decoded.  At the resultant protein is build.

Explanation:

The NEPA short form of  the National Environmental Policy Act came into force on 1st January 1970. NEPA needs the federal agencies to evaluate the environmental effects of their suggested actions before making any kind of judgments. The array of activities that comes under NEPA is wide and comprises:  

1. Adopting federal land management activities,  

2. Making decisions on permit applications, and

3. Constructing highways and other publicly-owned facilities.  

With the application of NEPA, the agencies access the environmental and associated economic and social influences of their suggested actions.  

Answer:

Stacy has purchased tuberous stem and roots vegetable respectively

Explanation:

Tuber is thick underground stem, such as potato, Jerusalem artichokes, and yams for example. It usually has buds from which new plants could grow. So, the first part of Stacy's vegetable is definitely tuberous stem. The other part must be root, because it has hairy structures. These hair-like structures have function in the absorption of water and minerals from the soil, examples of stem vegetables are asparagus and kohlrabi. Root vegetable examples are celery root, Yams, beets, onions, turnips, rutabagas, horseradish, carrots,  parsnips, kohlrabi, garlic,  (or celeriac),  turmeric.The root vegetables can grow underground, and has the ability of absorbing  large quantity of amount of nutrients that are present in the soil.

Answer:

Energy

Explanation:

In the perspective of common people , almost all changes that we make need some sort of energy in order for it to happen. Even the simple ones.

(For example, When you want to turn on the lamp, you need to spend energy to push your finger down and press the switch.  When you wants to change your bed covers, you need to spend energy to walk down to the cabinet , take out the bed covers, and spend another energy during the removal and set up of the bed cover.)

Energy can be expressed using or Newton* meter as units, mean that you do a certain amount of work(Newton) over a distance (meter) and The ability to conserve or energy like food will be expressed as Joule(J).

Answer:

The nurse should administer 2 ml each day

Explanation:

According to the prescription, 12 mg of betamethasone should be given daily for three days.

The prescription also says that betamethasone comes in 6 mg/mL per vial. Therefore, to give 12 mg of betamethasone, 2 vials (each vial having 1 ml) of betamethasone must be administered by the nurse.