Ineed cyanobacteria formed colonies called stromatolites. these used to be plentiful. what role did they contribute to the atmosphere?

Asmall number of finches are removed randomly from the wild and placed in a protected bird area. they are given as much food as they need and have plenty of space. why would natural selection not occur in this population? a. there is no reason for genetic mutation to occur. b. the birds compete for limited resources, c. the population has not reached carrying capacity. d. there is no genetic variation in the finches.

Anton created a chart listing different types of materials. which best complete the chart?

Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above