athere are toys 有玩具[translate] a高中 多久一次 High school how long one time[translate] aanimals take in the oxygen from the air and breathe out a waste gas carbon dioxide 动物作为在氧气从空气和呼吸废气二氧化碳 [translate]
I think parks play a very important “green lung “role in the cities. Say, trees in parks canbreathe incarbon dioxideandbreathe outoxygenthat people need. People in parks can enjoy the fresh air, the amazing view,intoxicatingflowers fragranceandhear birds chirping in the trees. green lu...
根据第5段"Research have shown that only half of dolphin's brain sleep at a time,leaving the other part aware of dangers.Besides,dolphins need to surface every so often to breathe air in and out of their blowholes (holes in the top of the heads).With one side of th...
Animals and plants are connected in an ecosystem. When animals breathe out, they release ___. A. oxygen B. carbon dioxide C. water vapor D. nitrogen 相关知识点: 试题来源: 解析 B。动物呼吸时释放二氧化碳。选项 A 是植物产生的;选项 C 水蒸气不是主要产物;选项 D 氮气不是呼吸产物。 反馈...
When animals (including humans) breathe, we take in oxygen and expel carbon dioxide into the air. This means that animals are indeed a source of one kind of air pollution. Animals also produce methane, which is another air pollutant. How are humans harming the environment? Humans impact the...
.Animal waste and dead bodies are broken down by small creatures,like those worms in the soil.This is their(3).The carbon dioxide that people and animals breathe(呼吸)out is used by plants to breathe and help them (4).Plants give out oxygen which people and animals ne...
in the moist soil, while amphibians live in or near water. Animals that can breathe through their skin have moist skin and have tiny blood vessels or capillaries that lie close their skin surface. These tiny vessels transport oxygen to their various tissues and carry carbon dioxide to the ...
Such clumps of oxygen-producing gunk may have supplied the first mobile animals with food to eat and air to breathe, the group reports online May 15 in Nature Geoscience. Recent fossil finds show that wriggling animals first emerged at least 555 million years ago, when atmospheric oxygen ...
Most amphibians absorb oxygen to breathe through their skin, and so they do not have scales, feathers or fur to protect them. Chemical pollution, bacteria and fungal infections impact them quickly, as do heightened swings in temperature and moisture levels due to climate change. For example, ...
This cardiac chamber is partially divided into two parts, allowing oxygen-poor blood to mix with oxygen-rich blood. The degree of mixing varies among the species. Reptiles are fully adapted to a life on land and breathe using lungs. Additionally, there are some species that have adapted ...