Fish are swimming animals that have scales and fins. Fish (25) oxygen that is dissolved in the water using gills. Most fish have bony skeletons, but some, (26) sharks and rays, have only cartilage. Amphibians are animals that (27) their life in the water, breathing with gills. As they...
Reptiles are cold-blooded animals that have ___. A. 且里用展世做且里用展世做gills且里用展世做且里用展世做 B. 干构受京入连级反头真光干构受京入连级反头真光a shell干构受京入连级反头真光干构受京入连级反头真光 C. 今米水取层比根件说今米水取层比根件说scales今米水取层比根件说今...
Mammals are warm-blooded animals that ___. A. have scales B. have feathers C. have hair or fur D. have six legs 相关知识点: 试题来源: 解析 C。中文解析:哺乳动物是温血动物,有毛发或皮毛。A 选项是爬行动物的特征;B 选项是鸟类的特征;D 选项是昆虫的特征。反馈 ...
Fish are swimming animals that have scales and fins. Fish(25)oxygen that is dissolved in the water using gills. Most fish have bony skeletons, but some,(26)sharks and rays, have only cartilage. Amphibians are animals that(27)their life in the water, breathing with gills.As they grow, th...
Reptiles all have scales on part of their body and have a skeleton. Also, almost all reptiles lay eggs. Some scientists also include birds in the reptile class because they are very closely related. Scientists believe that birds are more closely related to dinosaurs. Other scientists group ...
Ground squirrels can reach weights of 18lbs and lengths of nearly 3ft on average, but tree squirrels only tip the scales at a quarter of that weight. What is the difference between a gopher and a squirrel? The main differences between a gopher and a squirrel include their appearance, diet...
根据“They are animals that live in the south of Yangtze River in China. They have hard scales (鳞). They are also known as anteaters (食蚁兽) and help to protect trees in the forests. They are Chinese pangolins (中华穿山甲).”可知,第一段主要是向读者介绍什么是中国穿山甲的。故选C。 (...
【题目】T heyare animals that live in the south of the Yangtze River in Chin a.T hey have hard scales(鳞). T hey are also known as scaly anteaters(食蚁兽)and help to protect trees in the forest.T hey are Chinese pangolins(中华穿山甲). But they are endangered now. Experts said that...
They have a series of diamond or rhomboidal markings along their back that look like chevron patterns. Other notable features include a broad neck, large scales on the head and neck, and smooth scales on the body. They ...
Tuataras are animals that have survived since the Triassic period, which was about 240 million years ago. They are the only surviving members of the order Rhynchocephalia. Tuataras have a third eye known as a “parietal eye” on the top of their heads. The lifespan of a tuatara is upwa...