Brainliest ! what is the u. s. customary system of measurement? what is matter?

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

If an organ has six haploid chromosomes,how many chromosomes are present. 6 12

People with one sickle cell allele are not likely to get malaria. what is this an example of?