Which of the following is not one of the steps of the scientific method a. hypothesis b. data analysis c. estimate d. conclusion

Name the type of chemical that speeds up digestion

Environmental differences within ecosystems are generally caused by

The carbon cycle is best defined as a process in which a. carbon changes from inorganic forms to organic forms and back b. carbon is changed into other elements such as oxygen or nitrogen c. carbon is continually created from the sun’s energy by plants d. carbon is consumed and regenerated from other elements such as oxygen and nitrogen