In the marine food chain, which of these aquatic animals is often at the top and has sharp teeth for hunting? A. Manatee B. Dolphin C. Squid D. Crocodile (which can also be in aquatic habitats) 相关知识点: 试题来源: 解析 B。解析:海豚在海洋食物链中处于较高位置,它们有锋利的牙齿用于...
In order to live in the (1) w, most of them would need to have backbones, fins and gills(鳃). There are different (2) k of marine creatures, such as fish, prawns, sharks and even coral reefs(珊瑚礁).Fish of many colours and sizes can be found in the sea. They breathe(呼吸)...
There are different k of marine creatures, such as fish, prawns, sharks and even coral reefs(珊瑚礁). Fish of many colours and sizes can be found in the sea. They breathe(呼吸) in the water with the help of their gills and they get oxygen from the water. " i of from the air. ...
试题来源: 解析 C。解析:Penguins are typically associated with cold oceanic environments. Seals are mainly found in marine ecosystems. Dolphins are mostly found in saltwater. Crocodiles can inhabit freshwater rivers, lakes, and swamps.反馈 收藏 ...
This shark preys on squid, a range of coastal and pelagic fish, and some marine mammals such as seals and sea lions. 3. Sharks Found in the North Sea: Atlantic Thresher Shark (Alopias vulpinus) The Atlantic thresher shark uses its elongated tail to stun nearby prey. ...
There are different k of marine crentures, such as fish, prawns, sharks and even coral reefs(珊瑚 ).Fish of many colours and sizes can be found in the sea. They breathe(呼吸) in the water with the help of their gills and they get oxygen from the water. i of from the air. Fish ...
Although many marine(海洋的) scientists focus on animals in the ocean others seek to gain a better understanding of the ocean’s chemical and physical components (组成部分). Scientists are learning a great deal about the natural and human-caused processes that shape the ocean and its many life...
“The fact that live large tubeworms were found means that the hypothesis of larvae being able to colonize vents from below has been confirmed,” marine biologistMonika Brightof the University of Vienna, a co-lead author of the study, tellsScienceAlert’...
All insects are part of the taxonomical phylum Arthropoda, and they are collectively referred to as arthropods. It is common to see this name misspelled as “anthropod,” but this is not the correct term. They can be found in nearly every environment on the planet, and they currently account...
The first opal ___ in Coober Pedy in 1915. Soon, mining (采矿) became popular there. The workers found that and said, “___ cool the air was inside the mines!” These men knew ___ living under the ground was cooler than living in the desert. That’s how the underground homes _...