Biology, 06.11.2019 22:31 anthonybowie99
Chum salmon (oncorhynchus keta) are born in freshwater environments and then migrate to the sea near the end of their lives, they return to the freshwater stream where they were born to spawn. in freshwater, water constantly diffuses into the body and ions are lost from the body. in salt water, body water diffuses out of the body and excess ions are gained from the water. a salmon's gills have special cells to pump salt in or out of the body to maintain homeostasis. in response to the salmon's moves between freshwater and salt water, some cells in the gills are produced and others are destroyed. these changes made in the cells of the gills during the lifetime of an individual salmon are an example of ?
a) evolution.
b) trade-off.
c) acclimatization.
d) adaptation.
e) luck.
Answers: 2
Biology, 22.06.2019 02:50, arangoaiden71
Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays
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Biology, 22.06.2019 03:00, 21tywmeb
20 points and brainlist 1. london has suffered from terrible air pollution for at least seven centuries. why is the city so prone to its famous “london fog? ” what did london do to get rid of its air pollution? 2. why does air pollution cause problems in developing nations more than in developed ones?
Answers: 2
Biology, 22.06.2019 05:40, Student658
Which of these substances does not protect against invaders in the nonspecific immune response? a. saliva b. mucus c. tears d. urine
Answers: 1
Chum salmon (oncorhynchus keta) are born in freshwater environments and then migrate to the sea near...
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