Answer:
The primary roles of adult stem cells in a living organism are to maintain and repair the tissue in which they are found.
Explanation:
Medulla of oblangata (answer C) is part of the brain which is affected of the patient who complain of breathing problems . Medulla of oblangata is a vital center which control visceral activities such as breathing,heart rates,blood pressure, swallowing and vomiting.
Mosquitos are an example of organisms with r-reproduction strategy. This means that they tend to overproduce, have many offspring , but do not provide care for them. This happens because those organisms live in unstable, unpredictable environments, so rapid reproducing is very important. R strategy helps them produce a huge number of offspring, because at least some of them will survive to reproduce.
Elephants are an example of organisms with k-reproduction strategy, meaning that they have few offspring at a time, take care of them and have a long live span. These organisms occupy more stable environments, usually are stronger, better protected and more energy efficient. Their reproductive strategy is to grow slowly and to produce offspring with high probability of survival.
Metres are exactly 100 cm in length, the easiest way to go from metres to centimetres is to simply add the extra 1 or 2 zeros, so 4.5 metres would be 450 centimetres.
As for the millimetres, 1mm is equal to 0.1cm, once again, just move the decimal forward by one numeral, and you'll have the converted value, making 50mm = 5.0cm.
Your shark would be 450cm long and have teeth with an average length of 5cm.
