Lasting genetic similarities make the two bears biological sister species, more closely related to one another than to any others. ... But Ursus maritimus has also evolved to match its polar environment, growing a longer snout than brown bears' and larger, paddle-like paws, both of which aid polar bears in hunting seals.
Answer:
B. Organisms in each ecological system have evolved in that system and have adaptations suited for that environment.
Explanation:
According to natural selection theory, organisms need to continuously adapt and evolve within an environment or risk being wiped away from that environment.
Organisms that are not able to adapt to an environment are gradually replaced by those that have the capability to adapt and survive in that environment.
Those that are able to survive go ahead to reproduce and give rise to offspring with inherent ability to survive while those that cannot survive die off.
The correct option is B.
<span>Pneumocystic pneumonia. This is a fungal infection that is very common in people with HIV. Before medication was available, about 3/4 of people with HIV came down with this infection.</span>
Melanoma is a type of the skin cancer which is the most serious. A melanoma can spread and put the person at more risk. The data shown in the graph regarding the skin cancer between the years 1973-2004 shows an increase in melanoma cases in both men and women. However, this increase occurred at much more faster rate in men than in women according to the graph.
Hence, the answer is 'Skin cancer increased at a faster rate in men than in women'.
