Answer:
The correct answer is spirochete and cyanobacteria
Explanation:
The endosymbiotic theory states that the eukaryotic cells are evolved from prokaryotic cells when a larger prokaryotic cell engulfed the smaller prokaryotic cell. The presence of chloroplast and mitochondria supports this theory.
After genetic analysis of chloroplast DNA, it was seen that it closely resembles the cyanobacterial DNA which shows that ancestor host cell gained photosynthetic ability from endosymbiosis with a cyanobacterial ancestor.
It was also seen that ancestral host cells engulfed spiral bacteria called spirochetes which helped them to produce cilia for example tail on sperms is the result of endosymbiosis of spirochete. So the right answer is spirochete and cyanobacteria.
Answer:
c) Because enzymes are proteins, they have a very specific order of amino acids that make up their structure (including the active site), meaning that only one key can fit in. The active site, or "lock" will recognise the substrate or "key" and will only let that one in and therefore can only catalyse a specific reaction.
b) the transcription process delivers information from the DNA to the protein-building machines.
Explanation:
I'm sorry I could only these question, I don't understand 3 a) question, hope this helps!
Answer:
The statement <u><em>'The National Institutes of Health says that acupuncture relieves pain and reduces nausea and vomiting, although it is unclear how it works' </em></u>supports that acupuncture relieves pain.
The National Institute of Health would have made the claim of acupuncture releasing pain by thoroughly testing it. Hence, this statement supports and lets the reader believe that acupuncture might be effective for relieving pain of the body along with other symptoms such as nausea and vomiting.
Answer: Proteus vulgaris is a bacteria which can cause cerebral death if enters into the bloodstream.
Explanation:
If all the infants are kept in the same nursery with the same nurses the newly admitted babies are expected to receive the infection of Proteus vulgaris. It is a rare newborn infection. The nurses are required to be replaced in the nursery as under observation the chances of their infection remains prominent. The bacteria makes its way through wounds and natural orifices.
