Which of these organisms release carbon dioxide by feeding on dead organic matter such as plants and animals?
•herbivore
•producer
•carnivore
•decomposer

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

helicase, i think thats it

which

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

> fossil record <

sedimentary rock

> geologic time scale <

radioactive elements