Lacrymaria: Vicious Long-Necked Predators

The video explores the fascinating world of microscopy, focusing on the unique organism Lachrymaria. It highlights the organism's distinctive neck, which can extend up to 8 times its body length, and compares it to a giraffe's neck. Lachrymaria's hunting strategy involves rapid neck movements to capture prey, and it cycles between active and dormant states. The video concludes with a reflection on the wonders of the microscopic world.

What is one of the main delights of using a microscope?

• The colorful images it produces

• The ease of use

• The ability to see large objects clearly

• The anticipation of discovering new organisms

How does the neck of the lacrimal area compare to that of a giraffe?

• It is less flexible than a giraffe's neck

• It can be 7 to 8 times its body length, much longer than a giraffe's neck

• It is about the same length as a giraffe's neck

• It is shorter than a giraffe's neck

What is the primary function of the lacrimal area's neck?

• To help it swim faster

• To ambush prey

• To attract mates

• To support its body

What strategy does the lacrimal area use to capture prey?

• It randomly whips its neck around to catch prey

• It relies on other organisms to bring food

• It waits patiently for prey to come close

• It uses a slow and steady approach

What happens to the lacrimal area during its resting state?

• It changes color

• It grows larger

• Its neck retracts and it becomes inactive

• It becomes more aggressive

How many states does the lacrimal area cycle through?

• Five

• Four

• Three

• Two

What did James discover about the lacrimal area's activity cycle?

• It only becomes active at night

• It has a cycle of activity and dormancy

• It never becomes inactive

• It remains active all the time