Q: Plants, fungi, bacteria and archaea cells all have what feature that keeps them rigid that animal cells do not have? Choices: - cytoplasm - cell membrane - plastids - cell walls A:
cell walls

Q: Unlike ionic compounds, covalent compounds do not have freely moving what? Choices: - neutrons - atoms - Nuclei. - electrons A:
electrons

Q: What type of cell has negative anode is positive cathode? Choices: - picric cell - planetoid cell - non-voltaic cell - voltaic cell A:
voltaic cell

Q: Overharvesting is a serious threat particularly to which species? Choices: - aerial species - amphibious species - terrestrial species - aquatic species A:
aquatic species