Tracheids allow for efficient transport of ____ over longer distances. Stomata allow for ___ ____ between the plant and the atmosphere. Without ____ land plant would not have been to able to grow more than just a meter or so tall. Tracheids transport ____ and ____ around the plant body. Cuticle layers ____ gas exchange. Desiccation is a much more common problem in ____ environments.
The biggest fish in the ocean is the Rhincodon typus or whale shark. Despite their tremendous size and intimidating appearance, whale sharks are commonly docile and approachable. Please keep your distance, giving them the respect and space they deserve. Whale sharks can grow to 12.2 meters and weigh as much as 40 tons by some estimates! The largest reported whale shark was 20 meters, but it is uncommon to see them longer than 12 meters.
Hogan keeps track of freshwater fish size records through his Megafish Project, which studies the worldâs biggest freshwater fish, and says the previous size record for a freshwater fish was an estimated 693 pounds (314 kilograms), for a Mekong giant catfish. The largest freshwater ray he has measured was about 400 pounds (180 kilograms). Unconfirmed reports have suggested sizes for the rays as big as 1,100 to 1,300 pounds (500 to 600 kilograms). The Guinness Book of World Records lists the Mekong giant catfish, which also lives in Thailand, as the âworldâs largest freshwater fish,â weighing up to 660 pounds (300 kilograms). The 2015 edition of the book breaks out the largest saltwater ray as a separate category from bony fish, even though rays are technically a type of fish.