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ASHA 777 [7]
3 years ago
10

Explain the RNA hypothesis?

Biology
2 answers:
ivann1987 [24]3 years ago
7 0
Hypothesis that attempts to explain how early Genetic Material formed. This hypothesis proposes that RNA, rather than DNS, was the genetic material that stored information in living things on Early Earth.
Sonbull [250]3 years ago
4 0
Here is the answer to this question:
<span>
According to the </span>RNA<span> World </span>Hypothesis<span>, life later evolved to use DNA and proteins due to </span>RNA's<span> relative instability and poorer catalytic properties, and gradually, ribozymes became increasingly phased out. The ribosome, a large molecular machine that drives protein synthesis, is a ribozyme.
</span>
I hope this helps you

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Which structures are parts of the central nervous system? Select all that apply.
kramer
<span>•Central nervous system- the part of the nervous system that is made of two structures, the brain and the spinal cord. hope this helps!!
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3 0
3 years ago
If you were planting a vegetable garden, what should you consider for the time of planting?
zvonat [6]

When planting vegetables it is very important to know the climate of the area, its usual patterns, and how will that affect the growth and development of the crops. The soil quality too is very important, as it is the basis for the development of the root-stock of the crops.

If we have a temperate type of climate, than we have four different seasons, meaning different weather patterns throughout the year. We can take onions, radish, and peppers as vegetables of choice. The onions can be planted in mid-autumn, as they will need more moisture, and they are resilient to low temperatures, thus will not have problems in the winter, and in the spring they will already have the basis so will grow quickly and be larger. The radish can be planet in late winter or early spring, in a period when there is more precipitation. It is not a vegetable that likes high temperatures, so with its quick development, it will be able to develop the tuber by late spring. The peppers can not sustain low temperatures, so they should be planted in late spring. They also like warm weather and lot of water, so it will be needed to water them a lot in the hot and dry period. They will manage to develop and produce the vegetables by the end of the summer, thus not getting damaged by the cold nights in the autumn.

7 0
3 years ago
How do you calculate surface area to volume ratio of a cylinder?
Molodets [167]
Cylinder Formulas in terms of r and h:<span><span>Calculate volume of a cylinder: V = πr2h.</span>Calculate the lateral surface area of a cylinder (just the curved outside)**: L = 2πrh.Calculate the top and bottom surface area of a cylinder (2 circles): T = B = πr. ...Total surface area of a closed cylinder is:</span>
8 0
3 years ago
Describe the role of each of the following mechanisms in determining an individual’s eating habits and body weight.• Biological
alina1380 [7]

Answer:

Explanation:

1. Biological Mechanism: This are things like hunger, appetite and taste of the individual. Every individual is unique and one's hunger and appetite determines how often and how much they eat respectively. The higher these are, the more likely they are to consume calories. The taste is even more relevant as it speaks to what kind of food the individual likes, is it high calorie or low? Is it fat rich or low fibre? Etc.

Learning Mechanism: This are relevant mostly to students. Studying patterns greatly affect eating habits and body weight. Time of sleep, stress patterns, balanced diet and even regularly missing a meal for a study group directly affects metabolism patterns. For instance, eating breakfast regularly boosts metabolism, and is good for weight balance.

Reinforcement: Certain foods are quite addictive and so reinforce their consumption by adjusting brain chemistry.

Body or Brain Chemistry: Studies done on Obesity have found that some individuals are susceptible to environmental food cues than others due to differences in brain chemistry that make eating more habitual and less rewarding. This means that not only do they eat habitually but that it is less satisfying. This is a major contributor to obesity. These Peculiarities in brain/body chemistry affect people's eating pattern and their weight.

Brain Structure Modeling: Uncontrolled eating is also positively associated with gray matter volume (GMV) of the cerebellum, and negatively associated with the Gray matter volume on the left side of the anterior cingulate cortex, middle cingulate cortex, and supplementary motor areas. What this means is that individuals with more gray matter volume in these areas of their brains are more presdusposedto excessive eating habits and this might lead to weight problems and it's related health risks.

Genetic Factors: These factors are genetic predisposition to eating disorders, genetic influence on taste, meal selection and appetite processing.

These also influence how much the individual ends up eating and what type of food they eat.

Cultural Factors: This include type of food found in one's culture, polite eating habits there, the ingredients used for cooking said culture. It also encorporatea the individual's class as food poverty is known to exist affecting about 14 million people. There's also available and affordability of healthy food options. This affects both eating habits and weight as less healthy junk food are more likely to be calorie dense.

PS: The eating pattern and body weight factors are closely correlated as the eating pattern explains what the weight situation might mirror.

6 0
2 years ago
What is the geologic setting of the orr at Round Mountain​
Lyrx [107]

Answer:

Round Mountain is an epithermal, low-sulphidation, volcanic-hosted, hot-springs deposit located along the margin of a buried caldera. The majority of the mineralisation at Round Mountain is contained within the tuffs, although drilling has encountered some ore in the underlying Palaeozoic basement.

Explanation:

please mark this answer as brainliest

5 0
2 years ago
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