Q: The development of multi-cellular organisms begins from a single-celled zygote, which undergoes rapid cell division to form this?    Choices:  - gametophyte  - multicell  - eukaryote  - blastula  A:
blastula

Q: What are all scientific explanations and interpretations based on?    Choices:  - changes  - theories  - controls  - facts  A:
facts

Q: What is the fracture called when rocks on both sides move?    Choices:  - a crevice  - a shear  - a stress fracture  - a fault  A:
a fault

Q: Most arthropods are insects. the phylum also includes spiders, centipedes, and what?    Choices:  - amphibians  - crystals  - coral  - crustaceans  A:

crustaceans