Cicadas and Land Crabs Biology

The video discusses the life cycle and behavior of cicadas, including their long underground development and symbiotic relationship with bacteria. It also covers the characteristics and behavior of land crabs, highlighting their adaptation to land and the challenges of studying them. The video provides insights into the handling and care of crabs, emphasizing the importance of understanding their biology for proper care.

What is the longest known lifespan of a cicada species?

• 7 years

• 17 years

• 10 years

• 13 years

What type of sap do cicadas feed on during their underground phase?

• Maple sap

• Tree bark

• Phloem sap

• Xylem sap

Why is xylem sap considered a poor food source for cicadas?

• It's too sweet

• It's too salty

• It's very dilute

• It's toxic

How do cicadas obtain essential amino acids?

• By eating leaves

• From the xylem sap

• Through photosynthesis

• Via symbiotic bacteria

What is the role of the bacteria Sulcia in cicadas?

• It helps in digestion

• It protects against predators

• It provides energy

• It makes eight essential amino acids

How are the symbiotic bacteria transmitted to cicada offspring?

• Via the air

• Through water

• Through the soil

• In a packet from the mother

Where do land crabs typically lay their eggs?

• In trees

• In the ocean

• In the sand

• In freshwater lakes

What adaptation allows land crabs to breathe on land?

• Lungs

• Specialized gills

• Air sacs

• Moist skin

What is a common diet for land crabs?

• Only leaves

• Fruits, seeds, and small animals

• Only insects

• Only fruits

Why are land crabs becoming popular in the pet trade?

• They require no special habitat

• They are colorful and interesting

• They have a short lifespan

• They are easy to care for