All living things contain biomass. Which element is the most important when creating biomass?
a. Carbon
b. Nitrogen
c. Oxygen

While eating cake crystal watched kisha place her hand in the frosting and rub it in her hair afterwards crystal did the same with her piece of cake crystal displayed

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion

Choose the correct words to complete the sentences related to genetic screening. is a procedure that is used during pregnancy to detect genetic defects. is extracted from the uterus and used to identify genetic disorders?