If the covalent bond was the backbone of the DNA molecule. Where would it be located?

"d.) carbon dioxide and hydrogen sulfide"

frogs. the lower the ph the higher the acid content. frogs have the highest tolerance in this scenario.

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation:

which

what is a measurement of the earth’s history divided into time periods?

> fossil record <

sedimentary rock

> geologic time scale <

radioactive elements