1. Which of the following parts allows different activities of the cell to happen? A. cytoplasm B. lysosome C. vacuole D. vesicle

2. What do you call the organelle that plays a role in animal cell division?
A. centrosome B. lysosome C. mitochondrion D. ribosome

Vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a.) antibody, antibiotic b.) antigen, antibody c.)antibiotic, antibody d.)antibody, antigen

Which spheres are involved when sedimentary rocks formed from parts of seashells at the bottom of the ocean? a.) biosphere, atmosphere, geosphereb.) geosphere, hydrosphere, biosphere c.) geosphere, exosphere, hydrosphered.) hydrosphere, biosphere, atmosphere

Which characteristics must an object possess in order to be considered alive?