What is the PLURAL form of Oasis?
Oases
____________are one of Earth’s oldest life forms, having existed for at least 3.5 million _______________.
Bacteria + millennia
What is the PLURAL form of Basis?
Bases
When blue-ringed ______________ think they’re in danger, their rings flash bright blue.
Octopi/Octopuses
What is the SINGULAR form of radii?
Radius
Many _________________ can be eaten, but others are very poisonous.
Fungi
What is the PLURAL form of analysis?
Analyses
What is the PLURAL form of crisis?
Crises
What is the PLURAL form of cactus?
Cacti/Cactuses
What is the PLURAL form of Criterion?
Criteria
What is the SINGULAR form of phenomena?
Phenomenon
Scientists are working to prove the ________________ that ____________________ are related to whales.
hypothesis + hippopotamuses/hippopotami