the roots of the plants always know which way to grow – into the soil but not above it? Some British... the soil. Calcium makes the hairs grow, and produce more RHD2, and take more calcium.But when an ……

a tree gets big and strong, some of its aerial roots will grow into the ground and develop into a new... a really fun time. I hope we can take more trips like this in the future.BY LI YE, 12, GOLDEN APPLE ……

their roots connected (连接)!1California redwood trees (加利福尼亚杉树) may grow 300 feet into the sky. It would... quite shallow. They need to take in as much surface water as possible. And they grow in all directions ……

through their leaves, bark (树皮) and roots (根). For example, mangrove (红树林) trees often grow in salty.... As time goes by, the leaves take in a lot of salt. Finally, the leaves fall off the trees, taking ……

Take risks to growTwo seeds lay side by side in the soil.1The first seed said, “I want to grow! I... it. Like this seed, if we do not take risks in order to grow, life may swallow us.3 Teens couldn ……

. They grow on land or in water. All plants make their own food. They take energy from sunlight.Parts....The roots help to fix (使固定) the plant. It gets water and minerals for the plant to grow. How do plants make ……

. It cannot grow alone. Aspens usually live in clusters (簇), or groves (树丛). Why is this? Aspens send up new shoots (芽) from their roots. In a small grove, the trees may all have their roots connected ……

also have a hard time figuring out which way is up, meaning that they don’t grow in the right... cans since there are strict weight limits on items taken into space. Foods that we take for granted ……

, even the growth of bamboo – the more time we spend preparing, the deeper our roots grow...; the more time we spend preparing, the deeper our roots grow, and the greater success we will have. 江苏 ……

the jar on a table in a bright, warm place. Roots will grow, and you can plant the tuber (块茎) in soil....WHAT you’ll need: a sweet potato showing signs of roots or little purple buds (芽).What to do: Stick ……

the jar on a table in a bright, warm place. Roots will grow, and then you can plant the tuber (块茎...WHAT you’ll need: a sweet potato showing signs of roots or little purple buds (芽).What to do: Stick ……

excrete (渗出) salt.Some parts of the roots grow out of the water. They need more oxygen to live...;These are roots. They can grow in salty water. The roots are not easy to get through. They make great homes ……

plants usually take in carbon dioxide?1. How do plants usually take in carbon dioxide?A. Through their roots.A. Through their roots.B. Through sunlight.B. Through sunlight.C. Through tiny holes ……

Can trees walk? Yes! In Costa Rica (哥斯达黎加), Latin America (拉丁美洲), the walking palm (棕榈) trees can walk! When they are in shadow (阴影), the trees grow new roots (根) toward the sun. And then they “walk ……

was it not cultivated (栽培) on a large scale?“It turns out that its roots cannot survive in natural conditions. We had to help it grow roots,” Shen said.The problem was, the three teenagers knew little about ……