Non-indigenous species are not subject to those habitat changes produced by human being.

相似题目

• 偶见种（rare species）

  查看最佳答案

• 民航地区气象中心应当收集本地区民用机场的机场天气报告METAR和SPECI，并编辑（）。

  查看最佳答案

• 种（species）：

  查看最佳答案

• SPECI报表示的是（）

  A . 特殊天气报 B . 天气实况报 C . 天气预报 D . 以上都不对

  查看最佳答案

• 建群种（constructive species）

  查看最佳答案

• 优势种（dominant species）

  查看最佳答案

• 种（species）

  查看最佳答案

• 凡使用自动观测设备的台站，用于METAR和SPECI时，采用（）分钟平均值。

  查看最佳答案

• 气象电报中METAR报是天气实况报，SPECI报是特殊天气报，TAF是天气预报。

  A . 正确 B . 错误

  查看最佳答案

• Human occupation of animals’ territory might cause species extinction.

  查看最佳答案

• Shelterwood cut favors the regeneration of _______tree species.

  查看最佳答案

• Human’s behavior has a great impact on species biodiversity.

  查看最佳答案

• ecological niches and their resident species

  查看最佳答案

• Natural selection acts in the form. of variation with a species.

  A．Y B．N C．NG

  查看最佳答案

• 用于METAR和SPECI时，地面风应当观测基准观测点的分钟平均值

  查看最佳答案

• Some species of birds are highly sociable and nest in dense colonies.

  A．hardly B．seasonably C．extremely D．chiefly

  查看最佳答案

• 在METAR£¯SPECI中，什么情况下风向组必须编报VRB？

  查看最佳答案

• We are a young and new species in all the following senses EXCEPT that______.

  A．a few thousand years is nothing in terms of evolution. B．we are probably the sense-organ for the life on earth. C．we often make mistakes and grope in the dark. D．there is so much around us that we need to learn about 此题为多项选择题。

  查看最佳答案

• Which of the following can be inferred about large mammal species'？

  A．Relatively few species have the necessary characteristics for domestication. B．More species of large mammals are domesticated as pets than for food. C．Only a few large terrestrial mammal species are primarily herbivores. D．All large mammals can be classified into one of five important groups.

  查看最佳答案

• What is the lifespan of a species connected to？

  A．The lifespan of a species is connected to the speed at which the heart beats． B．The lifespan of a species is connected to the size of the species． C．The lifespan of a species is connected to the speed at which the species runs．

  查看最佳答案

• 当能见度上升并达到或经过下列哪些数值时须发布SPECI（特殊报告）？（）

  A．800、1500或3000米 B．5000米，在有大量按目视飞行规则飞行的情况下。 C．以上两个都是

  查看最佳答案

• 主导能见度为30米，在METAR£¯SPECI中应编报为（)。

  A．0030 B．30 C．0000 D．0050

  查看最佳答案

• Assume that you are able to examine a total of 100 separate meiotic events in an animal species. You note that within 10 of these meiotic events, there was a crossover event occurring between genes A

  A．5 m.u B．10 m.u C．20 m.u D．45 m.u E．50 m.u

  查看最佳答案

• which of the following species has the most unpaired electrons （）

  A．CI B．P C．K D．Ne

  查看最佳答案