Answer:
oxygen and carbon dioxide
Herpes would be one of them
Answer:
Well water mollusks live underwater and land mollusks live on land
Explanation:
The system of agriculture that uses organic fertilizers including compost manure, etc. It can have some struggles like pests, difficulty in marketing, limited organic food. Smart strategy, responsible public activity, scientific planning, and government support can help it to overcome.
<h3>What is the importance of organic farming?</h3>
Organic farming is very much important as it can yield higher as compared to conventional farming.
The main reason behind the struggling of the farmers related to organic farming are:
- Lack of marketing strategies.
- Pest attacking the crop.
- It require more time as compared to the conventional one.
- limited supply of organic food.
The farmers should be guided to have smart strategy, contacting with government to overcome the problems, scientific planning, etc.
Thus, by adopting the listed strategies one can overcome the struggle in organic farming.
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Explanation:
Behaviors that are determined by genes and that give an organism increased reproductive success usually become common in a
species due to <u> </u><u>evolution by natural selection,</u>
In<u> evolution by natural selection, </u>the following must occur
- reproduction
- the inheritance of specific traits from parent to offspring- heredity
- variations in the number of offspring each individual produces
- variations in physical characteristics
Further Explanation:
Sequences of DNA make up genes which can have different forms called alleles. DNA, which makes up the genotype, is transcribed into mRNA and later translated into amino acids which are linked together by rRNA to form proteins which make up the phenotype of an organism.
During reproduction other events, such as crossing over during mitosis and meiosis, mutations lead to increases in genetic variation. This variation refers to the genetic characteristics present within a species. Mutations may be either beneficial or deleterious; they are maintained within cells, as they form new traits called alleles. Beneficial trails may confer traits that increase the fitness of a species, along with ensuring survival by conferring a protective advantage- these phenotypic differences between organisms are called adaptations.
This is called natural selection- an evolutionary mechanism which changes the inheritance frequencies of these beneficial alleles over several generations of offspring. These offspring are said to develop adaptations which ensure their survival, the alleles for which become more stable within a population over time.
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