在寻找多种选择练习问题上，您可以用来学习QCE生物学外部评估（EA）？那么你可以在这里使用很多问题！
回答多个选择问题有时会很棘手，所以我们已经让所有25个生物学EA练习问题的答案让您下载。
Keen to get a solid amount of study in? Let’s go!
生物学EA多项选择练习问题
问题1
RNA链由以下含氮基础组成：
8月CCU GAG UUA
相应DNA链的结构是什么？
(a)TUC GGU CTC UUT
(b)TAC GGA CTC AAT
(c)TAG CCA GTG AAT
(d)Tug CCU GTG UUT
问题2
基于下表，两种物种最密切相关？
(a)2和4
(b)4 & 3
(c)1 & 3
(d)2＆1
问题3.
An individual who is homozygous for the brown eye trait has a child with someone who is heterozygous for the brown and blue traits. What is the chance that their child will have brown eyes?
(a)100%
(b)75％
(c)50％
(d)25%
问题4.
基于下面的划分，以下哪种蜘蛛物种最密切相关？
从图像源于ScienceDirect
(a)Liphistiidae & Ctenizidae
(b)Oecobiidae & Salticidae
(c)pisauridae＆tetragnathidae.
(d)Theridiidae & Theraphosidae
问题5.
A white flower is crossed with a red flower to produce a pink flower. Which hereditary relationship is occurring in this cross?
(a)Codominance
(b)Polygenic inheritance
(c)Sex-linked
(d)不完整的主导地位
问题6.
三元图21的特点是核型异常的特点是什么？
(a)删除21染色体
(b)删除21染色体
(c)添加染色体21
(d)添加21染色体
问题7.
以下哪项是“基因”术语的正确定义？
(a)The haploid set of chromosomes in a gamete or microorganism
(b)从父母转移到后代的遗传单位
(c)由与磷酸基团连接的核苷组成的化合物
(d)在几乎所有生物体中作为染色体的主要成分存在的自我复制材料
问题8.
以下哪项不是关于表型变异的正确陈述？
(a)Transcription factors play a determining role in an organism’s phenotype
(b)环境不会影响生物体的表型
(c)Histone modification can influence an organism’s phenotype
(d)DNA标签可能导致生物体表型的变化
问题9.
以下哪项是宏观调查的正确定义？
(a)Evolutionary change within a species or small group of organisms over a short period of time
(b)在延长的时间内，关于分类学团体演变的进化变化
(c)有机体更好地适应他们的环境生存并产生更多的后代
(d)物种的各种特征有
问题10
In a meadow you used to be able to find white moths. However, after the construction of a factor that is now causing the air to be constantly filled with dark smog, you now only ever see dark coloured moths. What is the most likely cause for this phenomena?
(a)竞争排斥原则
(b)白蛾有一种选择性的优势
(c)黑蛾有一种选择性的优势
(d)白蛾不喜欢烟雾的气味
问题11
以下哪一项不是信涵体的假设？
(a)随着时间的推移，在谱系中发生特征的变化
(b)Any group of organisms are related by descent from a common ancestor and share the evolutionary history of that ancestor
(c)有一种分叉模式的封闭形成
(d)生物体仅通过生理特征相关
问题12
大卫希望确定昆士兰州丛林特定地区的袋熊的丰富，是什么最好的方法？
(a)Line transect
(b)Quadrat.
(c)捕获 - recapture.
(d)Belt transect
问题13
Which of the following most accurately describes a nucleotide?
(a)A compound consisting of a nucleobase and a 5-carbon sugar
(b)从父母转移到后代的遗传单位
(c)A section of DNA wound around 8 histone proteins
(d)A compound consisting of a nucleobase, 5-carbon sugar, and phosphate
问题14
Which of the following is not a feature of a pioneer species?
(a)能力繁殖性
(b)Ability to fixate nitrogen
(c)光合作用的能力
(d)能够忍受极端的条件ns
问题15
A strand of DNA reads:
GCT AGG CGA TCT
鉴定互补的DNA链。
(a)CGA TCC GCT AGA
(b)CGA UCC GCU AGA
(c)CGU TCC GCT UGU
(d)CGT ACC GCA TGT
问题16
特征在于后代的繁殖方法，具有很少的父母投资，以及随后人口的快速下降被称为：
(a)Sexual reproduction
(b)k选择
(c)r选择
(d)Meiosis
问题17
Which of the following is a biotic factor?
(a)水盐度
(b)Parasites
(c)土壤博语
(d)UV level
问题18
The species richness for the following ecosystem is:
(a)4
(b)2
(c)22
(d)44
问题19
Which of the following is the correct definition for clade?
(a)Organisms on opposite ends of a cladogram
(b)一群通过参数演变的生物体
(c)A group of organisms that evolved through convergent evolution
(d)A group of organisms who share a common ancestor
问题20
参数可以描述为：
(a)一个远远相关的生物的过程独立地发展了类似的特征
(b)A process whereby closely related organisms evolve different traits
(c)在短时间内存在等位基因频率的变化的过程
(d)在物种组之间存在互殖进化变化的过程
问题21
In a DNA strand, thymine pairs with:
(a)腺嘌呤
(b)鸟鸣
(c)Cytosine
(d)Uracil
问题22
以下是：
从图像源于BioNinja
(a)Nucleotide
(b)Nucleoside
(c)Nucleosome
(d)核酸
问题23
In tropical forests, it is common to see orchids growing on the branches and trunks of tall trees in the ecosystem – allowing for them to get enough sunlight to survive. This symbiotic relationship is known as:
(a)发誓
(b)Parasitism
(c)共识
(d)共同主义
问题24
The population growth of a k-selective species typically follows which graph?
Graphs adapted from研究
(a)Graph A
(b)Graph B
(c)Graph C
(d)Graph D
问题25
Which of the following is the correct definition for ecological niche?
(a)A group of organisms that share a common ancestor and all of its evolutionary history
(b)A community of organisms
(c)植物，动物和其他生物，一起工作的区域
(d)A description of an organism’s position in an ecosystem, as well as it’s requirements
Solutions to Biology EA Multiple Choice Practice Questions
Click here to download the solutions to the 25 practice questions above!
Other QCE Biology Resources
如果您一直在寻找其他资源来帮助您学习QCE生物学，您应该查看以下练习问题和资源：
- Unit 3 Biology Data Test IA1 Practice Questions
- 单位3和4生物学外部评估实践问题
- The Essential List of QCE Biology Terms You Need to Know for Unit 3
- The Ultimate Guide to QCE Biology Unit 3: Biodiversity and the Interconnectedness of Life
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KINGEN SMITH.was a pioneer in the Queensland ATAR system. After graduating in 2020 with an ATAR of 98.40, she now studies a Bachelor of Advanced Science (Honours) at The University of Queensland — majoring in Physics. Through her studies, she hopes to develop a greater appreciation for how the wonders of the universe work. When she isn’t slaving away behind her unnecessarily large textbooks, she enjoys catching up with friends, scrolling mindlessly through TikTok, and sleeping.
