A.to inform(告知)readers about different types(种类)of trees and leavesB.to inform readers about different uses of trees and leavesC.to inform readers about which trees and leaves make the best animal homes(5)Which word means the main stem(主干)of the tree? A.rootB.leafC.trunk 2【...
Leaves have unique structures, called veins, that transport liquids and nutrients to leaf cells. Veins also carry the products of photosynthesis back to the rest of the tree. A tree leaf has several types of veins. The central one is called the midrib or midvein. Other veins connect to the...
Walnut trees have long compound leaves with 5 to 23 short-stalked leaflets. The male and female reproductive organs are borne in different petal-less flower clusters, known as catkins, on the same tree. The twigs characteristically contain a many-chambered pith. The fruit is not a true botani...
in hardwoods theaxial system is composed primarily of fibres and vessel elements. Having two cell types permits a division of labour; the fibres serve a largely mechanical function, and the vessel elements are wide, hollow cells specialized for water conduction. Wood grain is determined by the or...
英汉 英英 tree 显示所有例句 n. — see also bay tree , Christmas tree , family tree , gum tree , plane tree 1. 树;树木;乔木a tall plant that can live a long time. Trees have a thick central wooden trunk from which branches grow, usually with leaves on them. ...
Two main types of aphids affect trees and plants in Utah: cherry black fly aphids and woolly apple aphids. Cherry black fly aphids attack young, new growth on cherry trees. They cause leaves to shrivel, and they leave behind a sticky substance. Cherry aphids look like little black specks cl...
The first classification is between Broadleaves and pines; the second classification is between Broadleaves, Corsican Pines, and Scots Pines, and the third classification is between six tree species including different ages of Corsican and Scots Pines. These three classifications are performed by ...
pressure, a pronounced drooping of leaves and even branches of up to 5 cm in diameter (Fig.2, left). The canopy cover in tree species with dense canopies such asA. pseuoplatanusandT. cordatadecreased to levels of canopy cover typical for tree species with transparent canopies such asF. ...
Cruel and Unusual Punishments: 15 Types of Torture 11 Egyptian Gods and Goddesses 10 Great Sports Rivalries Oriental plane treeLeaves and seedballs of the Oriental plane tree (Platanus orientalis). Ask the Chatbot a Question More Actions
Watch a tree frog lay eggs, and see through a glass frog's skin to glimpse its inner anatomyLearn about tree frogs of American tropical rainforests. Adhesive disks on their feet help them walk on slippery leaves without sliding, and they lay eggs; within the egg mass, embryos can be seen...