B and A. conservation methods are important for native species
Answer: Typhoid fever is a life-threatening infection caused by the bacterium Salmonella Typhi. It is usually spread through contaminated food or water. Symptoms include prolonged fever, fatigue, headache, nausea, abdominal pain, and constipation or diarrhoea.
Explanation:
Answer:
4
Explanation:
Because the mean time taken to turn from blue/black to orange/brown (in minutes) was the shortest, showing that the rate of reaction was the highest.
Answer:
trachea
Explanation:
it is a tube that connects troat and bronch
<span>The correct answer is 'secondary consumer’. This is because the yellowfin tuna eats herbivorous fish (these are primary consumers - they only eat plants, which are producers) and take refuge from predators. This shows they are not tertiary consumers, as tertiary consumers are at the top of the food chain.</span>
