根据图中文字Findfive different kinds of trees , and collect these from each one: .A leaf .A small branch that divides(分叉)several times.找到五种不同的树,从每种树上收集:·一片叶子·一根分叉几次的小树枝。可知,这个测试要求分别从五种不同的树上各收集一片叶子和一根小树枝。故选B。2)C.细节...
EVOLUTION OF LEAF SHAPE: A PATTERN EMERGES. Plant Development, 169-183.Koenig, D. & Sinha, N. 2010. Evolution of leaf shape: a pattern emerges. Curr. Top. Dev. Biol. 91: 169-183.Koenig D, Sinha N (2010) Evolution of leaf shape: a pattern emerges. Current Topics in Developmental ...
a pattern of banana leaf ID: 2468754447 收藏 加入清单 下载版权I GUSTI DWI PUTRA TIFF大小 36MB 格式JPG 以图搜图 大图:3071× 4097 像素·26 cm × 34.69 cm·300dpi·JPG 中图:750× 1000 像素·26.46 cm × 35.28 cm·72dpi·JPG 小图:375× 500 像素·13.23 cm × 17.64 cm·72dpi·JPG ...
22 July 2015 Specialised emission pattern of leaf trace in a late Permian (253 million-years old) conifer Hai-Bo Wei1, Zhuo Feng1,2, Ji-Yuan Yang1, Yu-Xuan Chen1, Jia-Jia Shen1 & Xiao-Yuan He1 Leaf traces are important structures in higher plants that connect leaves an...
We quantitatively analysed the leaf traces in the late Permian conifer Ningxiaites specialis from Northwest China based on serial sections through pith, primary and secondary xylems. A complete leaf traces emission pattern of a conifer is presented for the first time from the late Palaeozoic. Three...
DC Freeman,JL Doust,A El-Keblawy,... - 《Botanical Review》 被引量: 492发表: 1997年 Relative reproductive effort in males and females of the dioecious shrub Oemleria cerasiformis We derived an index of reproductive effort (g reproductive tissue per g leaf) from data collected over two se...
Leaf traces are important structures in higher plants that connect leaves and the stem vascular system. The anatomy and emission pattern of leaf traces are well studied in extant vascular plants, but remain poorly understood in fossil lineages. We quantitatively analysed the leaf traces in the late...
Q15. The leaves of a tree on Anna's schoolyard fall according to a pattern.On the first day one leaf falls, the second day two leaves, the third day four leaves, the fourth day eight leaves. How many leaves will the tree fall on the8th day?Answer: 相关知识点: 试题来源: 解析...
Real values of a similarity index must be evaluated relativ... H Wolda - 《Oecologia》 被引量: 2159发表: 1981年 The biology of xylem fluid-feeding insect vectors of Xylella fastidiosa and their relation to disease epidemiology. Xylophagous leafhopppers are common and abundant of tropical ...
Presents the results of a field study of the seasonal growth of Nardus stricta which showed that the leaf turnover was slow. Periods of lamina extension growth; Age class of inter-connected tillers on rhizome tips; Field cutting experiments showing that Nardus was relatively insensitive to ...