Guys i need asa 45 pointss!

which of the following could be a method used to order geological events? (3 points)

select one:
a. calculating the rate of weathering and erosion of rocks
b. comparing the minerals present in different strata of rock
c. calculating the radioactive decay rates on all known elements
d. using relative and absolute dating to find age of objects from the past

Ameadow ecosystem includes many species of grasses and small shrubs, several herbivores, and a few carnivores. a fungus colonizes the meadow and kills most of its vegetation. what is most likely to happen to the populations of herbivores and carnivores in the ecosystem? a. the populations of herbivores and carnivores will increase because there will be less competition for chemical energy. b. the populations of herbivores and carnivores will remain stable because the fungus cannot infect these organisms. c. the populations of herbivores will decrease because of vegetation loss, but the population of carnivores will remain stable. d. the populations of herbivores and carnivores will decline because less chemical energy will be stored in the ecosystem.

What does it mean for a cell membrane to be selectively permable

What are the two main phases of a cell cycle