What direction does RNA-dependent RNA-polymerase go?

The photosystems are sets of chlorophyll molecules and other pigments and transmembrane proteins packed in the thylakoids, the transfer of electrons from the primary electron acceptor of photosystem II to the P700 chlorophyll a molecules of photosystem I is called photophosphorylation.

It is the global process of transformation of the energy stored in the electron of the reactive center excited by light, in a pyrophosphate bond of an ADP molecule.

When a photon is absorbed by one of the pigments of photosystem II, it quickly bounces off the other molecules until it reaches chlorophyll a in the reaction center.

The electron, after leaving photosystem II, reaches the reaction center of photosystem I, where chlorophyll P700 is, the pigments absorb light and the electron reacquires a high level of energy.

Therefore, we can conclude that when this molecule absorbs light energy, an electron is thrown up to a higher energy level and transferred to another molecule, a primary electron acceptor.

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Answer:B

Explanation:USATestPrep

Answer:

B) disease, and herbicides may transfer to undesired

species, creating unusually robust weeds,

There are ethical and social concerns regarding the

potential blending of animal and human DNA as well

Explanation:

Answer:

Years of pressure on remains sediments and plants.

Explanation:

Stage 1- Over millions of years, layer after layer sediments and other plants and bacteria were covered with soil.

Stage 2 - As they became buried ever deeper, heat and pressure began to rise.

Stage 3- The amount of pressure and the degree of heat, along with the type of biomass, determined if the material became oil or natural gas.

Answer:

Crude oil originates from ancient fossilized organic materials, such as zooplankton and algae, that convert geochemical processes into oil. The name "mineral oil" is a misnomer, as minerals are not a source of oil, and neither are ancient plants and animals

Your larynx is where air travels from your mouth or nose when you live in. After that, it travels to your bronchi through your trachea. Air reaches your lungs through your bronchi. The correct answer is the trachea(D).

Windpipe. Air travels through the trachea and larynx. The trachea is a tubular structure made up of hyaline cartilage rings and dense connective tissue. Ciliated pseudostratified columnar epithelium with goblet cells lines the trachea.

The part of the airway that continues below the larynx is known as the trachea (windpipe) To keep the trachea (TRAY-kee-uh) open, stiff cartilage rings line its walls. Cilia line the trachea as well, removing foreign particles and fluids from the airway and keeping them out of the lungs.

Air travels through the trachea from the laryngeal pharynx to the lungs and bronchi. Between the pharynx and trachea is a framework of cartilage that makes a sound.

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Q-Transports air from the larynx into the lower respiratory tract:

a) nasal cavity

b) bronchioles

c) pharynx

d) trachea

e) bronchi

f) alveoli

g) larynx

Answer:

Increasing tempeeature in earths atmosphere

Answer:

ruler, graduated cylinder

Explanation:

Answer:

1 and 3 (b)

Explanation:

Answer:

I think the answer is 1 and 3, hopefully Im right!

Explanation:

Answer:

d) the wall

Explanation:

a,b, and c are sources of light and the wall is a object

When describing a community, a biologist would identify every component or characteristic of a biological community.

A biological community refers to a group of different populations that inhabit a particular geographical area and interact with one another. Biologists would observe different aspects of a community, including the organisms’ ecological roles, population size, distribution, and diversity. In addition, a biologist would also consider the types of relationships between different organisms in the community, including competition, predation, mutualism, and parasitism.

In terms of population size and distribution, a biologist would examine the population density of each species in a community, as well as the spatial arrangement of organisms. This information is essential in understanding how the different populations interact with each other. For instance, organisms with higher population densities may compete for limited resources, such as food and water.

In terms of ecological roles, biologists would identify the trophic structure of a community. This involves understanding the flow of energy through different levels of the food chain, including producers, consumers, and decomposers. Biologists would also observe how different species play unique ecological roles, such as pollination or seed dispersal.

Overall, a biologist would consider every component and characteristic of a community when describing it. By doing so, they can gain a comprehensive understanding of how different species interact and function within a particular ecosystem.

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A biologist describes a community as the various species within an area, their interrelationships and their interactions with the environment. This includes various populations and the ecosystem they form, which are part of the broader biosphere.

When describing a community, a biologist would identify every organism that makes up the populations in a specific area. This includes the organisms, their interactions, and their relation with the environment. For instance, in a forest, each pine tree, representing an organism, together forms a pine tree population. Different populations such as pine trees, flowering plants, insects, and microbial populations combine to create the forest community. The ecosystem encompasses these living organisms and non-living components like nitrogen in the soil or rainwater. Altogether they are part of the biosphere, collectively representing zones of life on Earth.

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Answer:

A: DNA has to double

Explanation:

In the process of every cell division, the cell must double "replicate" its  chromosomal DNA in the process.

Answer:

The answer is Crocodile

Hope this helps you

Answer:

Crocodiles

Explanation:

Birds are most closely related to crocodiles.

Crocodiles and birds are part of the same larger group, called archosaurs.

Dependent variable: The number of scratches

Independent variable: Type of wax

Controlled variable - There is no control

A circle graph would be the best.

The variable that is measured, observed, and anticipated to change as a result of changing the independent variable is known as the dependent variable. The result or response variable that is being assessed in this instance is the total number of scratches.

The amount of students who chose basketball, tennis, football, or track as their preferred sport would be best represented by a circle graph, often known as a pie chart. Categorical data is displayed using a circle graph, where the various categories are represented as slices of the circle.

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Answer:

A theory is a carefully thought-out explanation for observations of the natural world that has been constructed using the scientific method, and which brings together many facts and hypotheses. ... A scientist makes an observation of a natural phenomenon.Explanation:

Answer:

I think it is C, copy the genetic code from DNA.

Explanation:

Answer:

Reduces water loss compared to other nitrogenous wastes, but requires more metabolic energy to produce.

Explanation:

Found the question/answer here. There may be more questions you are stuck with the answers on this study stack flashcard.

https://www.studystack.com/flashcard-1486371

Answer:

Your answer is Active Transport

Explanation:

hope this helps you!!!

Hippocrates is credited with being the first person to believe that diseases were caused naturally, not because of superstition and gods. Hippocrates was credited by the disciples of Pythagoras of allying philosophy and medicine. It was in anatomy that Herophilus made his greatest contribution to medical science, conducting important anatomical investigations of the brain, eye, nervous and vascular systems, and the genital organs. He also wrote on obstetrics and gynecology and held an elaborate quantitative theory of the pulse

Taking a scientific approach to medicine involves applying systematic and evidence-based methods to understand, diagnose, and treat medical conditions. It involves using rigorous observation, experimentation, data collection, and analysis to gain insights into the human body's functioning, diseases, and potential treatments.

This approach emphasizes objectivity, reproducibility, and the use of empirical evidence to make informed medical decisions. The work of figures like Herophilus and Hippocrates marked a significant shift in the study of anatomy and medicine. Their scientific approach introduced systematic methods of inquiry and observation that laid the foundation for modern medical practices.

1. **Herophilus and Dissection:** Herophilus' pioneering use of dissection allowed for detailed examinations of the human body's internal structures. This practice helped identify various organs, systems, and their interconnections, providing crucial insights into human anatomy. His emphasis on direct observation through dissection set the precedent for systematic exploration of the body's physical structure.

2. **Hippocrates and Holistic Understanding:** Hippocrates' recognition of the relationship between symptoms in one part of the body and diseases in other parts was revolutionary. He emphasized a holistic approach to medicine, where diseases were understood as complex interactions within the body rather than isolated conditions. This approach laid the groundwork for understanding the interconnectedness of physiological systems and paved the way for modern diagnostic practices.

3. **Scientific Inquiry and Evidence:** Both Herophilus and Hippocrates stressed the importance of basing medical knowledge on empirical evidence. They advocated for systematic observations, accurate documentation, and the testing of hypotheses. Their approach shifted medical practice from reliance on tradition and myth to evidence-based understanding, setting the stage for the scientific method's integration into medical research.

4. **Impact on Modern Medicine:** The principles established by Herophilus and Hippocrates influenced subsequent generations of scholars and medical practitioners. Their commitment to systematic observation, critical thinking, and evidence-based practice laid the foundation for the scientific and medical advancements that followed.

5. **Legacy of Exploration:** These early scholars paved the way for further exploration and discoveries in the fields of anatomy and physiology. Their emphasis on detailed observation and documentation inspired later scientists to build upon their work, contributing to the continuous expansion of medical knowledge.

In conclusion, taking a scientific approach to medicine involves applying systematic methods to understand and address medical issues. The work of Herophilus, Hippocrates, and later scientists was crucial in the study of anatomy and physiology because it introduced evidence-based inquiry, holistic understanding, and rigorous observation.

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Answer:

yes, this is called natural increase

Answer:

Explanation:BCDA

The correct answer is the option c from yeast fermentation of partially digested algae

The majority of fungus have several cells. A single-celled fungus known just as yeast typically develops on stale bread.

Mold, mushrooms, and algae are the only other fungus that have many cells. Fungi have a vast, multicellular hyphal network. Tubular cells make up the Hyphae filaments.

But because yeast is a single-celled fungus, it lacks hyphae.

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The lion and tiger's postzygotic barrier progeny are ungainly, gangly animals with a low chance of surviving in the wild.

Low hybrid viability is one type of postzygotic obstacle to development. In this environment, hybrid offspring are born, but because of their decreased fitness, they are less likely to mature . Another illustration is hybrid sterility, in which hybrid offspring are healthy but sterile.

When the fitness of hybrids, independent of environment, is persistently lower than of either parental species, as a result of factors like hybrid inviability or sterility, intrinsic postzygotic barriers arise.

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Hardwired characteristics of the brain that attempt to keep us in balance by correcting deficiencies are referred to as homeostatic mechanisms.

Homeostasis is the body's ability to maintain a stable internal environment despite external changes.

In the context of the brain, homeostatic mechanisms involve various processes that regulate physiological functions and maintain optimal levels of essential substances.

These mechanisms can include feedback loops that detect imbalances and initiate corrective actions.

For example, if there is a deficiency in a particular nutrient or hormone, the brain may activate mechanisms to increase its production, decrease its consumption, or enhance its absorption from the environment.

Homeostatic mechanisms play a crucial role in ensuring the body's overall stability and functioning, helping to maintain proper levels of various substances and promoting overall well-being.

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The Chart of the Nuclides provides a wealth of information about radioactive isotopes and their properties. It is an essential tool for scientists and engineers working with nuclear technology, and it can be used to help understand how nuclear reactions work,

Advantages to the way the radionuclide information is presented in the Chart of the Nuclides There are many advantages to the way the radionuclide information is presented in the Chart of the Nuclides. It provides a wealth of information about the various radioactive isotopes that exist and their properties. It is an essential tool for scientists and engineers working with nuclear technology, and it can be used to help understand how nuclear reactions work, how they can be controlled and manipulated, and how they can be used in a variety of applications. One advantage is that the chart is very easy to read and interpret. It provides a visual representation of the various isotopes that exist, along with their half-lives, decay modes, and other important information.

This makes it easy for scientists and engineers to quickly find the information they need and to make informed decisions about how to use and manipulate radioactive materials. A drawback is that the chart can be quite complex, and it can be difficult to find specific information if you don't know what you're looking for. This can be a problem for people who are not familiar with the chart or who are not trained in nuclear physics or engineering. Overall, the Chart of the Nuclides is an essential tool for anyone working with radioactive materials, and it provides a wealth of information that can be used to understand how nuclear reactions work and how they can be used in a variety of applications.

The half-life of an isotope refers to the amount of time it takes for half of a sample of the isotope to decay. As one moves from the ends of a horizontal line toward the middle, the half-life of the isotopes decreases. This is because the isotopes become more stable as you move towards the middle of the chart. The isotopes at the ends of the lines are less stable and tend to decay more quickly. As you move towards the middle of the chart, the isotopes become more stable and tend to decay more slowly.There are many reasons why this is the case. One reason is that the isotopes at the ends of the lines tend to be heavier and more complex than the isotopes in the middle of the chart. These isotopes are more unstable and tend to decay more quickly. As you move towards the middle of the chart, the isotopes become lighter and less complex, which makes them more stable and less likely to decay quickly.

The Chart of the Nuclides provides a wealth of information about radioactive isotopes and their properties. It is an essential tool for scientists and engineers working with nuclear technology, and it can be used to help understand how nuclear reactions work, how they can be controlled and manipulated, and how they can be used in a variety of applications.

One advantage of the chart is that it is easy to read and interpret, while one drawback is that it can be complex and difficult to find specific information. The half-life of an isotope decreases as one moves from the ends of a horizontal line towards the middle because the isotopes become more stable as they get lighter and less complex.

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Answer:

c

Explanation:

Answer:

Well then imma take a guess.

B

Explanation:

Answer:

The coreect answare would be B

Answer:

A is upper epidermis

B is palisade cells

C is spongy mesophyll layer

D is the lower epidermis

Explanation:

i hope this is helping

10 , 3 , 27

add the 5 and the 5 because they are going the same direction.

subtract the 7 from the 10 since they are in opposing directions.

subtract the 12 from the 39 since they are in opposing directions.