Answer: Ribose nucleotides and the nitrogenous bases
Explanation: RNA consists of ribose nucleotides (nitrogenous bases appended to a ribose sugar) attached by phosphodiester bonds, forming strands of varying lengths. The nitrogenous bases in RNA are adenine, guanine, cytosine, and uracil, which replaces thymine in DNA.
The role of the Hemoglobin Carries oxygen through the blood and a small amount of carbon dioxide.
Answer:
I'm assuming you are referring to a population such as a forest population. Appropriate answers would be 1) for a diverse food chain. 2) so the mechanics of an ecosystem can work and have multiple sources. IF you are referring to a population such as a given population of a species, it is important to have variety so mutations can occur and genetics can mix. This kicks off the survival of the fittest and Darwin's theory's. This, of course, takes plenty of time to see any change but genetic mutation is essentially survival of the fittest. If a mutation increases survival likelihood, they are now more fit to survive, thus creating a new "weak variation" in comparison to a new "strong variation" within a species. Read below for furhter explanation on previous stated points. I really hope this helps!
Explanation:
1) Populations of consumers would struggle if there is only one producer. If there are multiple variations of any producers, it will allow the consumers to thrive since there is an abundance and variation of producers. The same can apply to consumers since there are herbivore consumers and carnivore consumers. A population of wolves would struggle if their only food source were squirrels. If rabbits and deer were in the mix, wolves would thrive a lot easier.
2) If there was only one species of decomposer within an area, the decomposition process would take much more time due to a lack of efficiency with time. If there are multiple decomposers it wouldn't be much of an issue. Same goes with scavengers. There would be a lot of waste if only on scavenger lived within an area compared to multiple.
Answer:
<em>Quinonoles/Fluoroquinolones</em>
Explanation:
Antibiotics are sometimes referred to as <u>antibacterials</u>. <em>They are substances that kill or inhibit the growth of bacteria</em>. There are different criteria for classifying antibacterials including origin, chemical structure, range and effects of activities, routes of administration and <em>mode of action</em>. based on the latter, the classes of antibacterial that exist include
- those that operates by inhibiting cell wall synthesis in bacteria. This include <em>penicillin, bacitracin, vancomycin</em> and several others. Once cell wall cannot be synthesized, the bacterial cells eventually die off because the protective function of the cell wall is absent.
- those that operate by inhibiting the process of protein synthesis in bacteria. Protein synthesis is essential for cell division and continuity of life and once this process is inhibited, bacterial cells will not be able to reproduce and eventually die at the end of their growth cycle. Examples include <em>aminoglycosides, streptomycin, tetracycline</em> and many others.
- those that operate by inhibiting nucleic acid synthesis. Nucleic acids (DNA and RNA) synthesis is essential for cell division and continuity of life just like protein synthesis. Example of antibacterial that inhibit RNA synthesis include <em>Rifampicin</em> while the one that inhibits DNA synthesis include <em>quinolones </em>and their <em>fluoroquinolone</em> derivatives.
Answer:
En resultados
Explanation:
El experimento se basa en analizar el movimiento de la planta en respuesta a la luz solar, desde distintas posiciones:
- planta parada
- planta semiacostada
- planta acostada
Durante su experimento, Pedro debe ir registrando los movimientos que observa en las distintas plantas a medida que recibe la luz del sol. El registro de dichos movimientos ante el estímulo forma parte de los resultados.
- Objetivo o propósito del trabajo: analizar la influencia de la luz solar como estimulo para generar un movimiento en plantas desde distintas posiciones.
- Procedimiento: Ubicación de plantas en distintas posiciones y bajo las mismas condiciones ambientales. Exposición de todas las plantas a la misma cantidad de radiación solar. Observación del movimiento durante un periodo de tiempo determinado.
- Resultados: Registro del movimiento de cada planta en cada posición durante el periodo de tiempo que fueron expuestas a radiación. En esta instancia de vuelca en tablas o gráficos, o se describe qué fué lo que se observó durante el experimento. Cuál fue la respuesta de cada una de las plantas.
- Conclusión: Relación entre lo esperado y lo observado. Comparación con otros trabajos similares.