Which concerns about parenthood are often expressed by visually impaired mothers (select all that apply)?

What are the doorways into and out of cells, attached to the membrane, and built in the rough er.

The term equestrian relates to which animal? bulls cows horses pigs

Jason adds the antibiotic penicillin to a bacterial culture. the bacteria develop genetic modifications in their genome, which gives them resistance to the antibiotic penicillin. what caused this genetic modification?