【Paragraph 6】Although it is certainly true that the possession of hard parts enhances the___of preservation, organisms having soft tissues and organs are also occasionally preserved. Insects and even small invertebrates have been found preserved in the hardened resins of conifers and certain other...
Which of the following organisms would youWhich of the following organisms would you expect to have the shortest intestinal system? a. A very large carnivorous mammal that swallows its prey whole after killing it. b. A small carnivorous mammal that eats Which ...
Spraying of conifers with which hormone hastens the maturity period and thus leading to early seed production ? View Solution Spraying juvenile conifers with GA hastens the maturity period thus leadig to early seed production. View Solution Which of the following hormones plays an important role ...
although they rebounded later. Among plants, the K-T boundary saw a sharp but brief rise in the abundance of primitive vascular plants such as ferns, club mosses, horsetails, and conifers and other gymnosperms. The number of flowering plants (angiosperms) was reduced at this time, but they...
1.According to paragraph 1, which of the following is true of trees like maples and oaks? A. They have leaves that are resistant to frost. B. They are unable to survive if their leaves are damaged. C. They have buds that do not produce new leaves until temperatures rise. ...
5.According to paragraph 2, which of the following species initially increased in number at the K-T boundary? A. Dinosaurs B. Foraminifera C. Ferns D. Ammonoid mollusks 你的答案: 正确答案:C 题目解析: 登录 后才能查看题目解析,还没有账号? 马上注册 推荐文章: 【托福阅读】Official 43...
Most of the needle-leaved conifers of the northern and alpine forests, such as pines, spruces, and firs, do not lose their leaves during the winter. How do such evergreen plants escape intracellular freezing (freezing within cells) and tissue destruction when temperatures may drop to -40° ...
Intensive ungulate browsing significantly impacts forests worldwide. However, it is usually not single browsing events that lead to sapling mortality, but the little-researched interactions of browsed saplings with their biotic and abiotic environment. (
Which of the following gymnosperms has branched stems? 02:29 The leaves of gymnosperms are well-adapted to withstand extremes of te... 02:34 Identify the gymnosperms shown in figure and select the correct option 01:53 Seed plants are all 01:57 Select the correct pattern of arrangement of...
which added essential nitrogen to the heat-sterilized soil, enabling other plants to take root. Today, millions of lupine cover the pumice plain, along with penstemon, grasses, willows and young conifers. 在轻石平原,先驱种类是称大草原羽扇豆的一个开花的豆类,增加根本氮气到被热消毒的土壤,使其他...