Answer:
A group of bacteria that accumulate in layers and secrete an protective extracellular material.
Explanation:
The biofilm is a natural way how the bacteria get together to survive in an ecosystem or in another living thing. They build little by little this kind of building with different layers of bacteria that secrets a polymer, this protection polymer could be useful to protect the colony or to be attach to another cell or to a tissue. In medicine and in veterinarian studies is interesting because can be useful to create a film to protect some injuries.
The science is very important in the evolution and the improvement of the lifestyles of the human being. The researches in the sciences help in providing conclusions, which are helpful in day to day life. The technologies and innovations make life easier by providing various tools and techniques. Also, the researches in the science provide chance to improve lifestyle by providing scientific knowledge to improve the ethics, education, justice, aesthetics etc.
Answer:
Estrogen levels days prior to ovulation
Explanation:
Estrogen is responsible for the reproductive system in women and high levels occur naturally during menstruation as compared to glucose levels in blood as the pancreas is constantly producing more insulin to lower the glucose in blood.
For obtaining an adequate amount of DNA samples for DNA fingerprinting, polymerase chain reaction (PCR) can be used.
Polymerase chain reaction (PCR) is a technique that is used to amplify the DNA sample. The steps included in PCR are:-
1. Denaturation of the double-stranded DNA (at around 95°C)
2. Annealing of the primers to each of the single-stranded DNA templates ( at around 65°C)
3. Extension or elongation of the primers by considering every single-stranded DNA as a template. This elongation is carried out by <em>Taq </em>polymerase (at around 72°C).
With each cycle of PCR, the DNA sample is increased by 2ⁿ. Here, 'n' represents the number of PCR cycles.
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Answer:
eukaryotes
Explanation:
Acheas and Eucariontes have a common ancestor, which justifies the vast similarity in the structure and cellular function of each individual. These similarities have already caused confusion in the academic community that has already joined the two organizations in a single group, however, it is now known that the similarities are due to a common ancestor.
