Experiments in warmer waters have reported as much as a 50% decline in biomass in habitats that experienced
a. a 6-degree celsius decrease in water temperature.
b. a 6-degree fahrenheit decrease in water temperature.
c. a 6-degree celsius increase in water temperature.
d. a 6-degree fahrenheit increase in water temperature.

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.