Either B and D I believe I may be wrong..
They break down the organic matter that has died so that the nutrients stored with in it can be reused.
Answer:
D. A periodic warming of sea surface temperatur
e.
Explanation:
Loggerhead turtles and Humboldt squids normally lives in the south coast of Mexican. These animals are sensitive to temperature. Due to warming waters during El Niño events, these animals migrated toward the North (coast of California).
PS: In the tropical eastern Pacific, if the sea temperatures rise 0.5 °C above the long-term average, the condition is declared as El Niño.
You will need to observe the moon for a month to see if the student's claim is correct.
Yes there are cell organisms are divided into each of there own groups