植物器官Plants and their parts What do roots, stems, and leaves do?Leaves use light to make food for the plant. They take in air and water.The stem holds up the plant. Water and food move through the stem to the other parts.Roots hold the plant in the ground. They take in water ...
The air is always clean and fresh.Jenny: The forest is important to animals, too.我喜欢这片森林。 有如此多的树木和植物。空气总Many animals live in the forest and eat the是很干净、很清新。fruit from the trees. They eat other plants, too.Brian: Yes. Trees and other plants help clean ...
Throughphotosynthesis, they convert the carbon dioxide we exhale into fresh oxygen, and they can also remove toxins from the air we breathe. One famous NASA experiment, published in 1989, found that indoor plants can scrub the air of cancer-causing volatile organic compounds like formaldehyde and ...
723.Her team examined over 2, 000 old medical texts, and evaluated 280, 000 plants for their medical properties. 她的团队研读了2000篇(个)中医药古籍(古方),评估了28万种植物的药学属性。 724.From their research, they ...
Air pollution is caused by humans introducing chemicals and other materials into the air. These pollutants are dangerous to both the environment and our own health. Air pollution has a wide range of effects, from respiratory disease to climate change. Un
空plants. The airis always clean and fresh.气总是干净清新。Brian: Yes. Trees and other plants help clean the air.布莱恩:是的。树木和其他植物帮助净化空气。Jenny: That's true. It's pleasant to walk in the forest.詹妮:那是真的。在森林里行走让人愉快。当天气When the weather is sunny and ...
Why do we need trees?Danny, Jenny and Brian are walking in a forest.Jenny: I love this forest. There are so many trees and plants. ① The air is always clean and fresh.Brian: Yes. Trees and other plants help clean the air.Jenny: That's true. It's pleasant to walk in the ...
D) The custodian had reported the problem earlier. Answer: B 解析: (1’01’’) Woman: So what can be done about it? Teacher: Well, OK. There's a couple of things we can do. I can have a custodian take a look at it and see if he can do something. ...
Also Dungwort, Bear’s Foot Family: Ranunculaceae Not just a botanical insult the Stinking Hellebore is actually one of the least stinky of the foul-smelling plants. This shade loving perennial gets its name not from a foul flower but rather from the stinky smell when the leaves are stems ...
How do plants contribute to moisture in the air? Explain how tonicity affects water uptake at the roots. When does a plant take up water? What is the consequence of plasmolysis for plants? What would increase the water transport in plants?