Organism were originally classified into two kingdoms. Over time the number of kingdoms has expanded to six. Most recently these kingdoms were grouped into three domains. These changes in the classification system are most likely due to

Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers

What kinds of molecules can pass through the cell membrane without any problem?

Ineed with a hypothesis my question is can seeds sprout in different locations?