Heat from the sun makes it through near the Antarctic (where the hole is) is melting the ice and not allowing some key species to feed. seals don't have ice to come up for air through like normal so polar bears starve. loss of land means less food for a lot of species because the hunting grounds is closing and there is no room to expand.
Answer:
Dear Ms. Sandy Walters I am very impressed, happy, and greatful that you did this. I wouldn't expect any less from a great mind like you. Although we do not know eachother I do know one thing: Your work is inspiring.
Sincerely, hamborger69
Explanation:
Yeah it sucked I know but I hope it helps.
Answer:
D the current changes are mush smaller than in the past.
Answer:
C
Explanation:
C is what the circulitory system dosent do so its C :) Sorry, i sent this a bit late.
Answer: the expression of certain genes is affected by temperature
Explanation:
For organisms to survive changing environmental conditions, a lot of molecular processes occur in the genes.
For the arctic fox, enzymes coded by specific genes are periodically "switched on or off" depending on the temperature.
Thus, the change in colour can be EXPLAINED by the expression of certain genes affected by temperature