It is polymerase chain reaction hope this helps
Answer & Explanation: Cholera as a disease is any of the several acute infectious diseases of humans and domestic animals caused by certain strains of the Vibrio cholerae bacterium.
a) It is unlikely to spread directly from one person to another. So the risk of becoming ill through casual contact is quite low. However, for those with weakened immunity, they could possible contract the disease on contact leading to infection.
b) Signs of infection is usually marked by severe gastrointestinal symptoms such as diarrhea, abdominal cramps, nausea, vomiting and dehydration
c) Some of the different ways the disease could be spread include ingestion of contaminated water. Bacteria present in the faeces of an infected person are usually the main source of contamination.
Answer:
Dr Poole worked in Gorongosa park and he made the observation of most females being tuskless as a result of the selective pressure caused by poaching.
Although male elephants are also affected by this in which some don’t also have tusks the percentage is low when compared to the female elephants.
Answer:
D. The presence of aquaporins (proteins that form water channels in the membrane) should speed up the process of osmosis.
Explanation:
Water moves in the cells through osmosis which means water moves from its higher concentration to lower concentration. In many animals and plants, water channels are also present which is called aquaporins which allow the water to move through it in and out of cell more quickly.
The rate of diffusion by channel proteins is higher than simple diffusion therefore the aquaporins speed up the process of osmosis. No ATP is required to transport the water through aquaporin channel proteins.
