In what type of animals may a body cavity be present or absent?

Explanation:

Q: What type of event nearly always occurs at plate boundaries?
Ans: earthquake

Q: How many embryonic cell layers do flatworms have?
Ans: three

Q: What do you call the ancient cores of continents, where the earliest continental crust is now found?
Ans: cratons

Q: Although helper t cells do not destroy infected or damaged body cells, they are still necessary for what?
Ans: immune response

Q: The top of the saturated rock layer is called what?
Ans: water table

Q: Who developed the Sattriya dance form in the 15th century?
Ans: Sankaradeva

Q: What is a symptom of a faulty spark plug?
Ans: Engine misfire

Q: What was the unemployment rate in the USA in March 2025?
Ans: 4.2%

Q: What percentage expected higher inflation in six months in Feb 2025?
Ans: 32%

Q: What is another name for critical speed?
Ans: terminal speed

Q: What helps a camel survive in a desert?
Ans: Hump

Q: In Ashtanga Hridayam, which treatment is indicated for Garbhini Arsha?
Ans: Bilwadi Taila

Q: What is the purpose of a vehicle’s registration number under the MV Act?
Ans: Uniquely identifies the vehicle

Q: A drug that induces and/or maintains sleep, similar to normal arousable sleep:
Ans: Hypnotic

Q: The building blocks of proteins are called what?
Ans: protein acids