1.Which of the following is NOT one of the principles of naturalselection?a.all living things varyb.more organisms are born than can obtain food and survivec.organisms reproduce exponentiallyd.organisms are perfectly adapted to their current environm

来源:学生作业帮助网 编辑:六六作业网 时间:2024/05/10 03:07:01
1.WhichofthefollowingisNOToneoftheprinciplesofnaturalselection?a.alllivingthingsvaryb.moreorganismsa

1.Which of the following is NOT one of the principles of naturalselection?a.all living things varyb.more organisms are born than can obtain food and survivec.organisms reproduce exponentiallyd.organisms are perfectly adapted to their current environm
1.Which of the following is NOT one of the principles of natural
selection?
a.all living things vary
b.more organisms are born than can obtain food and survive
c.organisms reproduce exponentially
d.organisms are perfectly adapted to their current environments
2.Features that are influenced by genetic material and the
environment are called:
a.genotypes
b.phenotypes
c.variants
d.a and b
3.Biological evolution is composed of:
a.the accumulation of small changes in a short time period
b.large scale changes in a lineage over many generations
c.small changes noticeable to a casual observer
d.a and b
4.Selection for characters that do not deviate in either direction from
an optimal range of values in a population is called:
a.stabilizing selection
b.directional selection
c.disruptive selection
d.genetic selection
e.adaptation
5.When a protein that is specified by a gene or sequence of DNA is
produced,it is called:
a.transcription
b.translation
c.protein synthesis
d.replication6.The production of sex cells is:
a.mitosis
b.meiosis
c.cell division
d.replication
e.recombination
7.The only source of new alleles,or alternate forms of genes,is:
a.gene flow
b.genetic drift
c.mutation
d.selection
e.all of the above
8.Refer to the chart below.What is the phenotype of individual
number 6 in this chart?
a.It is impossible to tell whether they have A or B blood because you
do not know which allele is dominant.
b.they have type O blood.
c.they have type AB blood.
d.they have type A blood.
e.they have type B blood.
10.A change in allele frequencies from one generation to the next is:
a.evolution
b.genetic drift
c.gene flow
d.mutation
e.cline

1.Which of the following is NOT one of the principles of naturalselection?a.all living things varyb.more organisms are born than can obtain food and survivec.organisms reproduce exponentiallyd.organisms are perfectly adapted to their current environm
c,b,a,a,d,b,c,8,9,d

英语翻译in consideration of the mutual covenants contained herein,and for other good and valuable consideration,the receipt and adequacy of which are hereby conclusively acknowledged,the parties hereto,intending to be legally bound,agree as follo 2道SAT数学题...At a basketball tournament involving 8 teams,each team played 4 games with each of the other teams.How many games were played at this tournament?The lengths of two sides of a triangle are (x-2)and (x+2),where x>2.Which of the follo 英语翻译Given an integer array A,which contains N integers.Please calculate the sum of f[i].Here,f[i] means the number of integers strictly less than A[i] in A.输入There are several cases.For each case,the first line has an integer N,then follo Complete the paragraph below with the correct form of the words in the box.adequate quarantee suit apply rub effectiveBeauty consultants remark that appropriate procedures of cleansing skin ____ better-looking skin.Here are the steps you should follo 帮我解答几道英语的语法题目,.1.people could not help( )the foolish emperor in the procession.A.laugh at B.to laugh at C.laughting at D.laughing on2.There was terrible noise ( )the sudden burst of light.A.followed B.following C.to be follo Which of the following is Which of the following is which of the following意思? FIXTURE NOTE THIS WILL CONFIRM THE FREIGHT CONTRACT MADE BETWEEN CHARTERERS AND OWNERS ON THE FOLLO 帮翻译:Am I spell your name correct?Please send me the information as follo the river,____are covered with trees,is very long.1.which banks2.who's banks3.of which banks4.the banks of which (C)Most students of Class Three go to school by _t_h_e_ underground train.A.a B.an C.the D./请问,在何时需要the,何时不需要呢?( )The boy took a lot of food and drink _s_o__t_h_a_t_ he could have them on the way.Use one of the follo 3.give the correct form of the words1.nobody knows whether his _____ (operate) has been successful2.They got married in 1991 and the ____(follow)year,they had a lovely baby3.the _____(call)said that he was a friend of my father's4.The snake follo words are like windows___we can look into the pastby which in which through which of which Which is the biggest of the three?Which is the smallest of the three? 英文作文,求修改,求润色~么么哒~Recently,the issue is pervasive and prevalent that which factors we should consider when we choose a college.Generally speaking,you can find too numerous factors to mention individually.For my part,the follo Which of the following is a hobby?Which is NOT? Which of the following is TRUE