Which elements are involved in creating genetic material? check all that apply.

carbon
hydrogen
oxygen
nitrogen
phosphorus
sulfur

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

The human body needs energy in order to carry out life processes such as breathing. where does the body get this energy? a. from eating food b. from learning about new things c. from lying in the sun d. from sleeping