Since fire is a chemical reaction, and oxygen is needed for that reaction, having a fire in a cave is a sure sign of the presence of oxygen.
Answer:
Explanation:
The plate were supposed to streak by D. radiodurans but unfortunately it was streaked by E.coli.
As there is no other petri plate available, this plate was exposed to the UV for the 30 minutes. The plate was not left uncovered and because of that the total E.coli could not die and another streak of D. radiodurans was done on the same plate.
As a result of incubation there will be growth of both of the organism in the petri dish.
The following segment would be in the material and methods
section of laboratory report. The section materials and methods is used answer the
questions “what did you do?” and “how did you do it?” to describe what apparatus
and methods are used and to analyze the process. This segment states that author
tested efficiency of chelation in treating atherosclerosis and answers to the
first question. Answer to the second question is that he did it by examining the
effect of EDTA on egg shells.
Answer:
third one because it has all steps of the food chain
The most appropriate intervention that is part of the initial care of a circumcised neonate would be; petroleum gauze being applied to the site for the first 24 hours. This would prevent the skin edges from sticking to the diaper. Neonates are initially kept in the prone position. To inspect the site diapers should be changed more frequently.
