PLEASE HELP a) Identify the producers, primary consumers, and secondary consumers in this
ecosystem. (3 points)

What do all macromolecules have in common with each other? oa. they all are formed from the same elements.ob. they all have major roles in cell membranesoc. they all act as catalysts in the body.od. they all have peptide bonds between carbon atoms.

Describe two recent or ongoing space missions.

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