Ask Question, Ask an Expert


Ask Biology Expert

All life forms on Earth exist either as single cells or as collections of cells that have a plasma membrane at their periphery (though some cells have cell walls outside their plasma membrane). Why do you think the plasma membrane exists in all living things? Why aren't there living things that don't have a membrane at their periphery?

Biology, Academics

  • Category:- Biology
  • Reference No.:- M925214

Have any Question? 

Related Questions in Biology

Real world lab-use what you have learned about microscopes

Real World Lab- Use what you have learned about microscopes to- 1. View and sketch the Letter "e" slide at all three levels of magnification- - be sure to label your sketches according to total magnification - take an im ...

Evolutionary biology in the age of genomics- q1

Evolutionary Biology in the age of Genomics- Q1. Phylogenetic trees- You are analyzing sequences sampled from four turtle species (A-D), considering a genomic region that is 75 base pairs long. You observe the following ...

1 what do primatologists study to trace evolution do they

1. What do primatologists study to trace evolution? Do they observe primates in natural environments or in captivity? 2. What are the 2 most common ethical concerns that primatologists face? 3. What are the 8 characteris ...

1 which karyotypes shows a normal male individual ie a male

1. Which karyotype(s) shows a "normal" male individual (i.e., a male individual with no trisomies or monosomies)? A. A and B B. B only C. C only D. D only E. A, B, C & D 2. Which karyotype(s) shows an individual with Tur ...

Biology1is biology becoming more interesting to you as you

Biology 1. Is biology becoming more interesting to you as you learn about the workings of the cell and how cells interact in an organism? 2. What scientific information have you learned about cells surprises or horrifies ...

Biologypart 1 written presentation outlinefor each of the

Biology PART 1: Written Presentation Outline For each of the four sections below, provide a written paragraph (5-7 sentences) summarizing your research and outlining what information you plan to use in your presentation. ...

Questionkayla brings riley now 18 months in for complaint

Question: Kayla brings Riley, now 18 months in for complaint of fever and cough. The fever began 3 days ago and is of normal levels in the morning then gets as high as 100 to 101 degrees in the afternoons. Riley has also ...

Answer in a word or sentence1 what is decibel name any one

Answer in a word or sentence: 1. What is decibel? Name any one source that can produce noise of about 120 decibel. 2. What are the effects of smog on plants? 3. Define Pollutants with any one example. 4. What is acid rai ...

1describe the structural orientation of the atom and

1. Describe the structural orientation of the atom and indicate all the components that make up the atom. 2. Indicate what needs to occur for an atom to be considered stable 3. Indicate and describe the different types o ...

Ethical decisions in the workplaceafter reading your

Ethical Decisions in the Workplace After reading your background readings, please review the following scenario and address the questions at the end. Jerry Stevens heads up an excavation crew for the municipal utilities ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

A cola-dispensing machine is set to dispense 9 ounces of

A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf

What is marketingbullwhat is marketing think back to your

What is Marketing? • "What is marketing"? Think back to your impressions before you started this class versus how you

Question -your client david smith runs a small it

QUESTION - Your client, David Smith runs a small IT consulting business specialising in computer software and techno

Inspection of a random sample of 22 aircraft showed that 15

Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise

Effective hrmquestionhow can an effective hrm system help

Effective HRM Question How can an effective HRM system help facilitate the achievement of an organization's strate