Number of results: 9,874

**biology**

a boy inherits genes for tallness,but his growth is limited as a result of poor nitrition. this is an example of 1)an inherited disorder. 2)environmental influence on gene expression . 3)expression of a hidden trait 4)a characterstic controlled by more than one pair of genes. ...

*February 8, 2013 by tania sharmin*

**Biology question plz**

Which of the following depends on bacteria? conversion of dead organic matter to fossil fuel photosynthesis dissolution nitrogen fixation I think its A but I feel it could also be D, could you plz help?

*September 26, 2014 by Niki*

**LIVING ENVIRONMENT**

the ability to grow in size is a characteristic of living organism .Although an icicle may grow in size over time,it is considered nonliving because there is 1)an incerase in matter ,but no increase in the number of icicle. 2)an interaction between the icicle and the ...

*February 12, 2013 by tania sharmin*

**math**

identify the value of x that makes each pair of the ratios equivalent x:4 and 45:20 A.8 B.9 C.10 plz plz plz plz help me!!!!!!!! PLZ!!!!!

*November 2, 2015 by pankakes*

**I NEED HELP!!:(!!!! HELP ME PLZ!!**

I GOT A FEW QUESTIONS SO what is a cell part that has the funcion of a gel-like material inside cells... and what releases energy into the cell.?? plz plz plz plz HELP!!!

*October 20, 2009 by i really need help!!*

**math plz plz plz plz help plz .....thank you**

mark bought a notebook for $1.45 and some pencils that cost $0.42 each if the total cost was 6.91,how many pencils did he buy A.12 B.13 C.14 D.15 is 14 the answer plz help thank you

*November 23, 2015 by random rainbow*

**Biology**

Mammals and birds have evolved from reptiles. In what way does a comparative study of their embryology establish the validity of the statement ? P.S I don't have the"Modern Biology" Book ... so plz help me with the note!

*February 8, 2016 by Ri*

**biology**

i am writing this lab in seed germination and this is my hypothesis: If there is high amount of salt in the soil then it affects the biological process. i don't know how to explain it i mean the hypothesis is clearly explained... how to expand it ? or write in other words.... ...

*October 6, 2009 by Anonymous*

**social studies? i think idk**

what new ideas came from the automobile? plz help plz plz plz ASAP

*December 5, 2015 by Geena*

**Math ....urgent help**

i just don't get this elimination method ..... plz help me plz.....teach me how to keep the x and y in a parallel line. and which number to multiply.....plz help -5x-4y=-11 10x=-6-y help me plz......

*January 7, 2009 by vero*

**SS plz help me plzzzzzzz**

What are the two major forces that reshape earth? Describe how itworks. plz plz plz help me there are no answer choices hope u can still help

*November 18, 2015 by #AriannaGirl :)*

**SS PLZ HELP ME ASAP**

What are the two major forces that shape and reshape earth? Describe how each one works. plz plz plz help me there are no answer choices hope u can still help

*November 18, 2015 by #AriannaGirl :)*

**plz plz help me belive me have tried**

cosx+cosy=a and sinx+siny=b show that sin2x+sin2y=2ab(1-(2/(a^2+b^2)) plz plz show step

*November 2, 2016 by maths*

**Geometry i need help urgently plz plz plz**

The lenght of a line segement is of 10units and the co-ordinate of one end point are (2,-3) if the abscissa of the other end is 10 find the ordinate of the other end?? Working plz plz

*October 18, 2015 by Collins*

**Biology**

how does esctacy work plz i need 3 explanation

*February 27, 2011 by tarkan*

**calculus help me plz too hard show step**

charge Q coulombs at time t seconds is given by the differential equation RdQ/dt+Q/C=0, where c is the capacitance in farafd and R the resistance in ohms.solve the equation for Q given that Q=Qo where t=0 plz show step plz plz plz

*December 27, 2016 by ...*

**math**

the volume of a rectangular solid is given by expressions given below.in each case find the dimentions of the solid. a)15x^2-51x+18. b)x^3+13x^2+32x+20. c)x^2-5x/2-3/2. d)x^4+x^3-x-1 plz everyone help me out.till 2 o'clock...plz plz plz

*May 30, 2012 by parul*

**math**

the volume of a rectangular solid is given by expressions given below.in each case find the dimentions of the solid. a)15x^2-51x+18. b)x^3+13x^2+32x+20. c)x^2-5x/2-3/2. d)x^4+x^3-x-1 plz everyone help me out.till 2 o'clock...plz plz plz

*May 30, 2012 by PLZ HELP ME NOW...*

**science**

plz help me!!!!! what are morels in biology???? are they fungi,bacteria,or something else they are a fungus, delicious too :)

*December 4, 2006 by gazthewiz*

**biology**

What are two examples of cellular organization.. Plz help Google sucks 😂

*August 19, 2014 by I NEED HEEELLPPP*

**maths plz**

∫√(x²+1)/(x+1)dx plz show step i know it messy plz i really need it

*October 6, 2016 by Anonymous*

**pscychology**

Could someone pretty plz plz plz help me...What are the 2 biggest parts of the human brain??

*March 11, 2009 by Logan:)*

**SCIENCE!!--ANONYMOUS PLEASE ANSWER MY QUESTION!**

plz answer the question we were talking about plz plz. Go back to the problem. I got 184 but the worksheet answer says 136 which is correct?? plz help!! thx

*September 13, 2010 by Happy Face*

**biology**

write the short note of cell inclusions,including the important points?plz help...

*January 4, 2013 by sushila*

**Maths plz help**

X^x+y^y=31 x+y=5 plz help i was told to use newton litrate method plz help

*December 18, 2015 by Collins*

**social studies idk**

how did the automobile negatively impact society???!!!?!?! PLZ help me I have been on it since morning plz pretty plz cherry on top help me

*December 4, 2015 by suzzie*

**Biology 12**

Triaglyceride with three F.A.chains of 20 carbon how to calculate the ATP production Plz show the steps thank you

*April 5, 2011 by Tarkan*

**Biology HELP**

Triaglyceride with three F.A.chains of 20 carbon how to calculate the ATP production Plz show the steps thank you

*April 5, 2011 by Tarkan*

**biology:plz help**

state the name for the action of two oppposing miscles, such as the biceps and the triceps.

*March 10, 2012 by pooja*

**physics!! plz answer me!**

A 0.15 kg baseball moving at +26 m/s is slowed to a stop by a catcher who exerts a constant force of -390 N. How long does it take this force to stop the ball? How far does the ball travel before stopping? plz plz plz help!!

*December 10, 2007 by julia*

**maths**

plz i cerious need help i posted dis qustion bt due 2 my wrong typing it was nt anser plz here it is:x^4+3x-2/(x^2+1)=Ax+B/(x^2+1)+Cx+D/(x^2+1)^2+(Ex+F)/(x^2+1)^3+G/(x-4)+(Hx+1)/(x-4)^2.find ABCDEFGH? plz it a partial fraction thank yo u and Godbless u

*July 29, 2015 by anthony*

**chem**

stilll didn't get it .. .. can u plz explain in detail ... how did u get the answer.. plz plz plz plz plzp l zp thnks Bond enthalpy is the energy required to break a mole of a certain type of bond. O=O = 495 kj/mol S-F = 327 kj/mol S=O = 523 kj/mol Use average bond enthalpies ...

*November 12, 2008 by DR BOOBB Plz HELP*

**Biology**

What is the role of lysosome in the cell? I have searched the web also tried google but there is no appropriate answer. Plz... help

*October 16, 2008 by Anonymous*

**biology**

how to label the ecstasy molecular structure plz name each part the formula is C11 H15 NO2 HCl

*February 28, 2011 by tarkan*

**biology**

i didn't really get any help scientific theory of how life began? any ideas like a easy thing to write about plz

*September 27, 2011 by Anonymous*

**maths**

sir steve plz am a little confuse (x-y)³=A(x+y) prove that (2x+y)dy/dx=x+2y if y is a function of x and x=e^t/(e^t+1) show that dy/dt=x(1-x)dy/dx plz explain to me very well sir damon answered that but i still dont get it If u want me to show my work i will do it sir plz plz ...

*November 12, 2016 by practising and need help*

**Plz help ASAP... Biology!!**

Why might the process of photosynthesis be considered a bridge between the living and nonliving parts of the world?? Thanks in advance.

*October 19, 2008 by joe*

**Biology**

all members of a particular species that live in the same area are called.... plz help me i think the answers is population.. is that right??????

*March 6, 2013 by ME! PLZ HELP*

**Ms.Sue (ONLY)**

can you plz help me in science? PLZ HELP ME! YOU HELP ALL THE TIME! *begs* plz help! i am my knees!!!!! (really i am!) its called "science 8th grade"

*March 7, 2012 by sammie doodles :-)*

**grade 10 history**

I have a SUPER HUGE project due called National History day and need lots of help with it, plz plz plz help!!!!!

*January 20, 2013 by Macy*

**Plz,plz help!**

Can you help me write: real-world scenario in which you would write an inequality rather than an equation? Plz, I really need help! :D

*January 21, 2014 by Princess Anna*

**maths sir steve plz reiny plz sir damon plz help**

express 1.1 in surd form pllllllz step

*November 12, 2016 by Anonymous*

**Calculus i need help plz plz**

Integrate:Sinxcosx/a^2cos^2(x)+b^2sin^2(x))dx??? plz i need the full working too hard for me

*October 21, 2015 by Collins*

**math plz help ;-;**

What is the y-coordinate of the y-intercept of the linear equation 2x - 3y = 12? Plz help I don't understand how to do this can you show me step by step plz, sorry ;-;

*May 31, 2016 by leo*

**maths sir steve plz reiny plz sir damon plz help**

express 1.1 in surd form pllllllz

*November 12, 2016 by Anonymous*

**Calculus i need help plz plz**

If y=ws^3/d^4 find the % increase in 'y' when 'w' increases by 2% and 's' decreases by 3% and 'd' increasee by 1%...... There a little error in the first question i post here it is plz i need the working and explanation

*October 18, 2015 by Collins*

**biology**

Question: Calculate the frequency of the AA, Aa, and aa genotypes after one generation if the initial population consists of 0.2 AA, 0.6 Aa, and 0.2 aa. What I have done is: P = (0.2)+(0.5)(0.6)= 0.50 q = 1-p = 1 - 0.50 = 0.50 Can someone check my answer plz.

*December 7, 2006 by Jesse*

**calculus too hard**

the velocity of a chemical reaction is given by dx/dx=k(a-x) where x is the amount transfered in time t,k is a constant and a is the condition at time t=0 when c=0 solve the equation and determine x in terms of t? Plz show work plz plz

*December 26, 2016 by ...*

**Science plz help**

Explain the basic parts of a major theme in molecular biology: the pathway of DNA to RNA to proteins. Include a general idea of what occurs at each stage

*January 23, 2015 by Sara*

**math**

A water balloon is shot into the air so that its height h, in metres, after t seconds is h = —4.9t^2 + 27t + 2.4 a)How high is the balloon after 1 s? b)For how long is the balloon more than 30 m high? c)What is the maximum height reached by the balloon? d)When will the ...

*January 23, 2009 by gagan*

**math**

You want to cover a trapezoidal box with paper. You have a sheet of paper that is 1m by 500cm. What is the size box that can be made with minimal wastage? plz plz plz help me with this.. i don't understand how to do this

*May 15, 2016 by Emily*

**Physics plz**

Do any teacher here have an email plz becouse I want to send some pictures for question ,,, physics plz or how can I attach picture here ????

*June 12, 2013 by Maryam*

**Function plz help!!!**

If a function u(x,y)=arctan(y/x) deduce the laplace equation of the function. plz show working i don't no where to start from...plz thanks

*December 12, 2015 by Collins*

**Biology**

A man who has phenylketonuria (metabolic genetic disorder) marries a woman who is heterozygous at that locus. What is the probability that their first child will have phenylketonuria? Plz help asap

*June 11, 2015 by Summer.*

**Chemistry chlorine plz help**

A metal x forms two different chloride.if 12.g of chloride A and 16.3g of chloride B contain 7.1g and 10.7g of chlorine respectively,show that the figure agree with the laws of multiple proportions.write there formulea plz i need the work....no hint plz

*January 12, 2016 by Daniel*

**English**

1. He is absorbed in biology. 2. He is very interested in biology. 3. He is into biology. ----------------- Are they all the same in meaning?

*May 30, 2016 by rfvv*

**AP BIOLOGY**

I have a quiz on genetics on friday in AP Biology and I would like some sites with good ap biology questions on them. I don't know any of them which I could go to.

*December 3, 2008 by Roger*

**Biology**

what are the characteristics of a rosa indica? also i need help on the lifestyle/habitat of rosa indica too plz help appreciate the help

*December 12, 2010 by Navroz*

**sir damon help plz steve plz chip into these**

An airplane ✈ makes a turn which has a banking curve of 30° to the horizontal with a radius 5m, in 10sec, what is the mass of the airplane, if it has a force of 500N. The power the plane travelled with, and what's the speed of the airplane when it made its turn?? Plz show ...

*March 15, 2017 by payuto*

**bio check plz plz plz**

in human (2n=46) mitosis result 2 cell with 23 chromoses and meosis result in (n=23) 4 cell with 46 chromoses... is this statment true ? please help me ....

*November 28, 2011 by hiba*

**SCIENCE HELP PLZ HELP PLZ**

Which is one advantage of sexual reproduction? A. More offspring are produced ** B. More offspring survive to maturity C. The offspring have more genetic Variation D. The offspring and the parents are identical. PLZ HELP ME IS IT A?

*January 25, 2016 by GoldenSparkleGirl*

**Urgent Chem help plz**

is answer +103 KJ.. plz chk Plz explain in detail.... i tried to search on internet but i am confused with co-efficents.. how to set up the equaiton .. plz help me ??? Bond enthalpy is the energy required to break a mole of a certain type of bond. O=O = 495 kj/mol S-F = 327 kj...

*November 12, 2008 by Sarah*

**sir steve sir reiny any 1 plz help me maths har**

Question. Find the greatest common divisor d of 159 and 51, and find integers x and y solving the equation 159 x + 51 y = d . Answer. d = 3. The extended Euclidean algorithm gives x = 9 and y = -28. (There are other solutions for x and y; these are not unique.) plz show step ...

*February 10, 2017 by collins*

**Calculus also need help plz plz plz**

If z=1/(x^2+y^2-1) is x(dz/dx)+y(dz/dy)=-2z(1+z) or -z^2(1+z) note:dz/dx=partial derivative of x and dz/dy=partial derivative of y??

*October 17, 2015 by Collins*

**Biology**

In the question section of my chapter "Strategies for Enhancement of Food Production" i got d question "What is Quarantine? Give one example of it." I found the what is the quarantine part but didn't get examples... Not even in my book. Plz help !

*February 7, 2016 by R*

**Biology**

Is 9th grade biology hard? Is it interesting...?? I love life science but I just wondering if 9th grade biology hard??? I'm taking biology next year.

*April 29, 2013 by Sarah*

**calculus plz help me**

Show that the numerical value of the radius of curvature at the point (x1, y1) on the parabola y^2=4ax is [2(a+x1)^3/2)]/a^1/2. If c is the centre of the curvature at the origin O and S is the point (a, 0), show that OC=2(OS) plz show me working plz

*September 16, 2016 by marvin*

**social plz...................help me plz.........**

Name the 6 seas of the " Fertile Crescent" / Middle East?

*September 16, 2008 by Kaity*

**math**

in the given figure,QRSis a straight angle.If a=2c,c=2b,b=d/3,what is the value of d?plz help me plz

*February 14, 2013 by tania sharmin*

**sequence help plz**

5+11+17+23 +... Find the sum of the 2n term of the series plz help me show step

*January 31, 2017 by naomi*

**Math plz help**

Which rational number is equivalent to 3.90 with the .90 repeating? A. 3/90 B. 39/10 C. 35/9 D. 43/11 EXPLAIN PLZ

*April 12, 2015 by Kimbo*

**Algebra**

Plz help me! -12 divided by 3 •(-8 + (-4)^2 - 6) + 2 My teacher said the answer should be -6. But I don't know how to get to it. Plz Help!

*September 9, 2015 by Salted Caramel*

**PLz help**

How was society before the automobile was invented plz help me I need it for my powerpoint

*December 4, 2015 by Jazzy@Sevensupergirls*

**calculus plz help me**

integrate:dx/((x-1)sqrt(x^2-2) plz show solution i plead

*May 5, 2016 by samuel*

**Science**

idont understand anything about the big idea of energy plz plz Help

*November 24, 2008 by Jammee*

**Trigonomentry plz help**

tanA=ntanB sinA=msinB find cos^2A in terms of 'm' and 'n' plz help

*December 19, 2015 by Collins*

**Science**

Plz HELP me !!!!! I need to know a acrostic poem about safety plz help me it is due tomorrow

*September 7, 2016 by Maddie*

**maths calculus need help plz**

solve d^2y/dx^2+y=tanx show working plz i don't no it at all

*September 20, 2016 by dams*

**help maths**

plz help plz help if z=x+jy,show that the locus arg{(z-1)/(z)}=pi/6 is a circle.find its centre and radius

*January 31, 2017 by putman/raj*

**local and state gov.**

someone plz i really need help plz i cant find it in my text so someone plz!!! For a democracy right??? search google: branches of Government Click Bens Guide to Government for kids (1st or 2nd link) Then when you get there select your grade level in the ballon... This shows ...

*November 12, 2006 by Cole*

**Math**

Plz cud sombdy show me long division method of x^4/(x-1)(x^2+1)???? Plz note (x-1)(x^2+1) is in the denominator.

*January 13, 2013 by Abhishek*

**Math**

Plz cud sombdy show me long division method of x^4/(x-1)(x^2+1)???? Plz note (x-1)(x^2+1) is in the denominator.

*January 13, 2013 by Abhishek*

**Math**

Plz cud sombdy show me long division method of x^4/(x-1)(x^2+1)???? Plz note (x-1)(x^2+1) is in the denominator.

*January 13, 2013 by Abhishek*

**Physics**

Plz plz answer this question..... "what is ment by the energy-mass relationship?explain it with the help of examples.....

*January 20, 2016 by Ali*

**maths plz help**

Find the directional derivative of: âˆ…=(x+2y+z)Â²â€”(xâ€”yâ€”z)Â² at the point (2, 1, -1) in the direction of A=iâ€”4j+2k. Plz help show me work

*December 1, 2016 by ...*

**SS HELP PLZ!!!**

How do mountains influence where people farm in the Koreas? I've looked in my book and couldn't find anything... HELP PLZ!!!!!

*December 19, 2016 by Agala*

**SS Help...**

What are 4-10 (or More) pros and cons Of Spending Cut? PLZ Just Give Me A Few Suggestions, PLZ!

*February 23, 2017 by Agala*

**math need help plz**

1/3+(-5/6)+(-1/2) can u help me solve this plz by using steps. thank u

*August 24, 2009 by scooby91320002*

**Maths plz help!**

4x^2+8x-m=0,differs by 3 find the value of the constant m plz help me??

*December 18, 2015 by Collins*

**social.....plz help**

what are the major battles of the persian warsin greece. For each battle include the victor. and the dates......plz help

*October 15, 2008 by Anonymous*

**geogrophy**

Plz define the Gadani beach in paragraph minimum 100 words plz i got marks.

*April 12, 2009 by Raghad*

**US HISTORY PLZ ANSWER MY QUESTION**

name 1 person that was influential to delaware when it was first founded. plz n thnx!

*September 20, 2009 by kayla*

**physics(URGENT!!!!!)**

EDXers!!! Plz help with MITx 8.01x I don't know how to solve HW8 Problem 3 Question c) Can anybody help me???? Explain Plz

*November 20, 2013 by Anonimus*

**number base help plz**

plz solve for me too hard show step payuto 123_(base4) = N_(base8 )

*February 12, 2017 by naomi*

**SCIENCE PLZ HELP YES OR NO ANSWER**

DOES THE GALAXY ANDROMEDA HAVE A SUN? I THINK IT DOESN'T BUT IM NOT SURE PLZ HELP THX! ~Sparkles_01

*April 27, 2016 by Sparkles_01*

**maths plz help**

give the expansion sin^8@ as a series of cos@ plz help me show working where @ means theta

*September 21, 2016 by sam*

**Physics Help me Someone plz**

If a galaxy is traveling away from us at 2.0% of the speed of light, roughly how far away is it? t= light years I got 2.4x10^8 light years but its wrong please help me out...thank you Physics Plz help me - Anon, Monday, May 6, 2013 at 9:17pm 5.98x10^6 Thatz still wrong Physics...

*May 7, 2013 by Leila*

**sociology**

hi people actually i need 2 do a project on sociology for 20 marks n i cant decide which on a topic ca u all plz help n v also need 2 have a survey or 30-40 interviews plz plz plz plz help its urgent It would really help us teachers if you would write in standard English so we...

*August 13, 2007 by aditi*

**geometry**

a cylinder water tower is three-fourths full of water.the tower is 24 feet tall and has a diameter of 28 feet.how much water is in the tower now? CAN SOMEONE PLZ PLZ PLZ HELP ME

*February 24, 2010 by yuku*

**plz help me**

Create a paragraph answering these questions: What were the benefits to society from the automobile? How was life easier? What changed? plz help me damon or anyone else

*December 4, 2015 by Jazzy@Sevensupergirls*