Answer:
C) Yes, the six-week-old cousin should be considered at risk.
Explanation:
young are at higher risk of pertussis as compared to older children and adult because young infants are not fully immunized. At the young age of 6 week, the cousin may not have started the DPT vaccination. so babies at this age gets easily affected when they are in contact with the infected people.
Autoinducer molecules are signalling molecules that need bacteria. In order for the autoinducer molecules to signal, the bacteria must find a way to initiate the signal and a way to respond to the signal it had created. Autoinducer molecules increase in production as the density of the bacteria cell increases.
Vitamins are organic substances because you get your vitamin D from the sun and the sun is not artificial is it. So that is false
Answer:
B) and D) are the correct answers
Explanation:
Hadalpelagic zone contains life such as amphipods
, snailfishes and cusk-eels.
Epipelagic zone is the ONLY zone where visible light and algae can be found. Lower than that the amount of light is insufficient for plants to carry out photosynthesis.
The mesopelagic zone has a diverse biological community that includes unique organisms adapted to live in a low-light environment including fish like
the blobfish, bristlemouths or the tasselled anglerfish.
