I'd go with the third one because the products of both of them are oxygen and carbon dioxide.
Answer:fungi
Explanation:fungi are heterotrophic plants. They are organisms that lack chlorophyll,true roots,stems and leaves .as a result they cannot produce their own food .they depend on dead and decaying matter for their source of energy, thus they are saprophytes.Fungi may be Unicellular or multicellular. They consist of harlike filaments of hyphae which fuses together and forms a mass of mycellium. Common example of fungi we see around us are mushrooms. Fungi feed by secreting digestive enzymes into their substrate and they absorb the nutrients that are broken down by the enzymes. Fungi are important because they help to rid the environment of dead matter by decomposing them. Matured fungi reproduce asexually by the means of spores
There are many different factors, but some are: the amount of natural resources (food, water, etc.), amount of predator/prey, and availability of shelter.
Answer:
Antibiotic resistance can evolved in bacterial population in the following ways:
Explanation:
- In response to constant exposure to antibiotics some members of a bacterial population develop some beneficial mutations in some essential genes that gives them survival advantage in terms of food and space over the sensitive bacterial strains and hence they are capable of out-competing the sensitive bacteria.
- This happens due to the process of Natural Selection.
- These genes are called antibiotic resistance genes and bacteria usually carry them on plasmids in form of cassettes where genes resistant to multiple drugs are incorporated. These plasmids are called the MDR or Multi-Drug Resistance Plasmids.
- These resistant plasmids can be easily transferred among bacterial populations by conjugation, transformation or transduction or direct plasmid transfer.
- The resistant genes encode for proteins that render the drug ineffective by promoting their efflux from the cells, preventing their entry into the cell, chemically modifying them such that they become non-functional or altering the target site of the drug.
