【题目】课文阅读表达根据课文 Shark attacks 回答以下问题1. How many different types of sharks are there in the ocean?2. Why do many people know that the most dangerous shark is the white shark?3. What are the fierce sharks mentioned in the passage?4.Why have shark attack been increasing ...
Clymene dolphins are otherwise called “short-snouted spinner dolphins” since they frequently turn while leaping out of the water. In contrast to spinner dolphins, in any case, they don’t finish a full pivot during their twists. All things considered, they typically land on their sides or ...
How many tentacles does a jellyfish have? Many jellyfish have four to eight tentacles hanging from their bell, but some species have hundreds. How many types of jellyfish are there? Studies show that there are around 2,000 types of documented jellyfish around the world. However, as is the...
Many people are scared of snakes. This is because some venomous snakes have deadly bites. Boa constrictor snakes use a different skill to kill their prey though. This lesson explores facts and interesting information about boa constrictors. ...
主旨大意。根据第二段内容“A team at the University of Western Australia studied the visual systems of many different species of sharks and what they have found is diversity in eye design that mirrors the ecological and behavioral diversity of theshark species. The team looked at the retinal cell...
According to the study, these animals are color-blind due to the light receptors they have got in their eyes. There are two main types of light-sensitive ceils to allow animals to see: rod cells help measure brightness because they are highly sensitive to light and allow night vision but ...
First, they like to live 8 waters where humans usually swim, so the chances of an encounter ( 遭遇 ) are much greater. Second, tiger sharks are so strong and aggressive that they can 9 (easy) hit a person. And third, tiger sharks have teeth perfectly 10 (design) for cutting their fo...
How many types of boa constrictors are there? What island do Komodo dragons live on? How many babies do emperor penguins have? How many babies do orangutans have in a lifetime? Do Komodo dragons eat their babies? How many eggs can a queen ant lay?
There are many types of bilge pumps and it's important to get one that's sufficient for the size of your vessel. If a boat has a 2-inch hole a foot below the waterline, nearly 80 gallons of water can pour in per minute. Once that same hole is 3 feet down, the flow can ...
While most humpback communication relies on song or non-song vocalizations, these amazing marine animals also use other forms of acoustic signaling. Tail Slapping Many species of whales slap their tails on the water’s surface, possibly for predation and communication purposes. Known also as lobtai...