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Browse through our recently updated questions and discussion topics.
PhysioEx 9.0: Exercise 2 - Activity 1-7
PhysioEx 9.0: Exercise 2 - Activity 1-7
1. The latent period of the skeletal muscle that was tested in this lab simulation was
a. about 1 second.
b. less than 1 msec.               
c. between 2-3 msec.
d. variable, depending on the voltage that was applied to it.

2. True or False:  Another name for a muscle cell is “myofibril.”   

3. The largest active force that could be generat
Free Notes   c.c.morgan   280251   11   myk9019   9 years ago
Mastering Astronomy Assignment Answers
Mastering Astronomy Assignment Answers
Major assignment we did in class, our professor also helped us get the answers.
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Free Notes   biolove   271675   20   miker313   11 years ago
Identify each stage of the life cycle (Chapter 13, Question 5, Part C)
Identify each stage of the life cycle (Chapter 13, Question 5, Part C)
Help please,

I was working on my hw and got stuck, hoping somebody could give me a hand, thanks.

Instructions:
In the life cycle of an organism, meiosis is paired with the process of fertilization. Understanding the life cycle of an organism is the key to understanding how sexual reproduction ensures the inheritance of traits from both
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Zoology and Botany   vpechenyy   261716   16   Rstate   A week ago
The latent period of the skeletal muscle that was tested in this lab simulation was (Exercise 2)
The latent period of the skeletal muscle that was tested in this lab simulation was (Exercise 2)
Activity 1

1.   The latent period of the skeletal muscle that was tested in this lab simulation was
a.   about 1 second.
b.   less than 1 msec.               
c.   between 2-3 msec. Correct answer
d.   variable, depending on the voltage that was applied to it.   

2.   True or False:  Another name for a muscle cell is “myofibril.”      False-Skeletal Muscles
Anatomy and Physiology   StudleyMcgee   199288   9   Kellybio   11 years ago
[Notes] - Essential Genetics: A Genomics Perspective
[Notes] - Essential Genetics: A Genomics Perspective
Solutions to Chapter 1-7, 10 Slight Smile

Enjoy!
Free Notes   rnb121   194078   4   robdigital   10 years ago
As the chromosomes of a parent cell are duplicated and distributed to the two daughter cells during
As the chromosomes of a parent cell are duplicated and distributed to the two daughter cells during
As the chromosomes of a parent cell are duplicated and distributed to the two daughter cells during cell division, the structure of the chromosomes changes.

Answer the three questions for each phase of the cell cycle by dragging the yes and no labels to the appropriate locations in the table.
Note: Assume that by the end of the M phase, the parent cell has not yet d
Genetics and Developmental Biology   sue   179744   10   rh 82   2 years ago
[Free] - Biology Campbell & Reece 8th/9th Edition A&P version Test Bank
[Free] - Biology Campbell & Reece 8th/9th Edition A&P version Test Bank
8th and 9th

Attached
Test Banks   lamwilton   168279   13   AEALNIND   5 years ago
Chemistry by Chang, 11th edition, End of Chapter Problems and Solutions
Chemistry by Chang, 11th edition, End of Chapter Problems and Solutions
I will upload all end chapter answers. If you need it to be emailed, let me know.

All I ask in return is to give me some thumbs up! Smiling Face with Open Mouth
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Free Notes   konfetka   130318   14   Chemistry12345.   9 years ago
Please help!!!! PhysioEx 9.0 Exercise 1,2,3 post activity questions
Please help!!!! PhysioEx 9.0 Exercise 1,2,3 post activity questions
Does anyone have the answers to the questions for the first three exercies PhysioEX 9.0...Exercise 1,2 and 3 and all the activities? I only need the answers to the post questions...
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Anatomy and Physiology   kelly2010   124302   15   jung minsuck   3 years ago
Registration Issues
Registration Issues
If you have an issues registering, please make note of it here. Guests are free to post.

The most common problem is not receiving an activation email upon registration. Make sure you check your spam/junk folder. We have had problems with Hotmail and other Microsoft-based (Outlook, MSN, etc.) email providers in the past.

If you
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Off-Topic Room   bio_man   123974   465   padre   8 years ago
PhysioEx 9.0 Review Sheet Exercise 6 Questions
PhysioEx 9.0 Review Sheet Exercise 6 Questions
PhysioEx 9.0 Review Sheet Exercise 5 Questions


I noticed that several people asked for these questions and answers, so I compiled a list of all the questions along with all the answers I had available to me.  Please feel free to add the answers that you know, as well as make corrections to the ones that I had on hand.  I will try to post more answers later
Upper-Year Courses   Serendipityou   112648   9   hammondgirl   12 years ago
Mendel's Law of Segregation Part A, B, and C (Chapter 14)
Mendel's Law of Segregation Part A, B, and C (Chapter 14)
Part A - Allele segregation and gamete formation

One character in peas that Mendel studied was yellow versus green seeds.
A cross between a homozygous yellow line (YY) and a homozygous green line (yy) will result in F1 plants that are heterozygous (Yy) for this trait and produce

Part B - Punnett square

Punnett squares are convenie
Genetics and Developmental Biology   biologyishard1   110633   11   sherifa shaw   3 years ago
[Notes] - Mastering Physics Solutions & Assignments
[Notes] - Mastering Physics Solutions & Assignments
Enjoy the attachment Face with Rolling Eyes
Free Notes   daniel91   104862   9   deffy   9 years ago
Explain what happens in the skeletal muscle sarcomere to result in the changes in active, passive, a
Explain what happens in the skeletal muscle sarcomere to result in the changes in active, passive, a
PhysioEx 9.0 exercise 2, activity 6.

1. Explain what happens in the skeletal muscle sarcomere to result in the changes in active, passive, and total force when the resting muscle length is changed.

2. Explain the dip in the total force curve as the muscle was stretched to longer lengths.
Anatomy and Physiology   clcoppage   98737   6   minow54   10 years ago
PhysioEx 9.0 Ex 8 Answers - Chemical and physical digestion
PhysioEx 9.0 Ex 8 Answers - Chemical and physical digestion
PhysioEx 9.0 Ex. 8: Chemical and Physical
Processes of Digestion - Review Sheet

 Assessing Starch Digestion by Salivary Amylase
1. List the substrate and the subunit product of amylase. _starch & maltose respectively__

2. What effect did boiling and freezing have on enzyme activity? Why? How well did the results compare with your prediction?
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Anatomy and Physiology   monroe025   96739   32   Kallas   7 years ago
PhysioEx 9.0: Exercise 7 - Measuring Respiratory Volumes and Calculating Capacities
PhysioEx 9.0: Exercise 7 - Measuring Respiratory Volumes and Calculating Capacities
ACTIVITY 1:  Measuring Respiratory Volumes and Calculating Capacities   Answers
1.   Which of the following processes does not occur during inspiration?
a.   The diaphragm moves to a flattened position.
b.   Gas pressure inside the lungs is lowered.
c.   Inspiratory muscles relax.
d.   The size of the thoracic cavity increases.   c. inspiratory muscles relax
2.
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Anatomy and Physiology   mattman   93677   20   antone8998   2 years ago
Mastering Genetics: Transcription and RNA Processing
Mastering Genetics: Transcription and RNA Processing
Transcription and RNA Processing
During transcription, RNA polymerase synthesizes RNA from a DNA template with the help of accessory proteins. In this tutorial, you will review the steps of transcription in eukaryotes and bacteria and investigate splicing of mRNAs in eukaryotes.
Part A - Transcription in bacteria
The diagram below shows a length of DNA containing a ba
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Genetics and Developmental Biology   deboss_18   91591   15   lexie.jacquez   3 years ago
I have all the exercises completed from 1-6 and #10
I have all the exercises completed from 1-6 and #10
If anyone needs help on labs let me know. I will help as much as I can. I use physioEX 9.0 and have completed labs and I am willing to share. I know they are 100% correct. I have had them graded and corrected the ones I  had wrong. I willIf anyone can help me on exercises 7 and 9 it would be greatly appreciated.
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Anatomy and Physiology   slabbapop   91576   35   moose18   11 years ago
What cause the white spot area on throat?
What cause the white spot area on throat?
Referring to following image, I would like to know on what cause the white spot area on throat and how to heal them.

Would white spot be inflammation area?

Does anyone have any suggestions?
Thanks in advance

[img width=350 height=525]https://biology-forums.com/gallery/
12345
Feeling sick?   oemBiology   91521   67   bio_man   A year ago
Deducing phenotypes and genotypes of selfed parents...
Deducing phenotypes and genotypes of selfed parents...
and mendels law of independent assortment

This is mastering biology and chapter 14 on biological sciences 5e.  Im trying to solve these but am really having difficulty.

Should the experiment shown in Figure 14.3 be considered a failure? Why or why not?

and

Part A - Deducing phenotypes and genotypes of selfed parents
Mendel studi
General Biology   lperez24   87008   13   Viswanath Vittaladevaram   10 months ago
Conduction of an action potential along an axon!
Conduction of an action potential along an axon!
This diagram shows the changes in charge distribution that occur across an axon membrane as an action potential propagates from left to right. The region where the action potential is occurring is shown in orange. Seven locations along the axon are marked by the letters a through g.

General Biology   rsmith9   86566   4   msorro   10 years ago
[Notes] - Major Mastering Biology Assignment & Answers
[Notes] - Major Mastering Biology Assignment & Answers
Attached Wink Face

Will help a lot Person Raising Both Hands in Celebration
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Free Notes   wouldbe   85912   14   Roque Gil Sato   3 days ago
Phyiolab 9.0 exercises 1,2,3,4
Phyiolab 9.0 exercises 1,2,3,4
Almost done with the class figured i'd share what I can. Here are labs 1-4 completed. Hope it helps. Will post another topic with 6,7 & 10.... I am still working on lab 9, anyone who can help me on it would be great. I have most of it done already just a few questions left.
Free Notes   slabbapop   85208   6   zygote   12 years ago
Experimental Inquiry: Does DNA Replication Follow the Conservative, Semiconserva
Experimental Inquiry: Does DNA Replication Follow the Conservative, Semiconserva
When a solution of cesium chloride (CsCl) is subjected to high-speed centrifugation, a stable density gradient is formed. Meselson and Stahl found that when cell contents were subjected to centrifugation with a CsCl solution, a band of DNA formed at the CsCl density that matched the density of the DNA. This technique is called density-gradient centrifugation.
The test tubes bel
General Biology   provedmagic   83420   10   jaimsolis   2 years ago
Can you identify the banding patterns predicted by each model after the first round of replication?
Can you identify the banding patterns predicted by each model after the first round of replication?
Part B - Experimental results: Banding pattern predictions for each model of replication
Meselson and Stahl designed an experiment that would allow them to discern whether DNA replication occurs in a dispersive, semiconservative, or conservative manner.
They started with E. coli that had been growing for many generations in medium containing 15N.
They then transferred
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Cell Biology   bdelgado26   82349   32   dziubmad   2 years ago
Can you recognize the eight stages of meiosis based on the location and behavior of the chromosomes?
Can you recognize the eight stages of meiosis based on the location and behavior of the chromosomes?
Part A - The stages of meiosis
Can you recognize the eight stages of meiosis based on the location and behavior of the chromosomes?
Drag the diagrams of the stages of meiosis onto the targets so that the four stages of meiosis I and the four stages of meiosis II are in the proper sequence from left to right. (Note that only one of the two daughter cells is shown for meiosi
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General Biology   biofo   80057   15   DMELIx   3 months ago
There are two types of postsynaptic potentials: excitatory postsynaptic potentia
There are two types of postsynaptic potentials: excitatory postsynaptic potentia
There are two types of postsynaptic potentials: excitatory postsynaptic potentials (EPSPs) and inhibitory postsynaptic potentials (IPSPs). An EPSP is excitatory because it makes it more likely that the axon of the postsynaptic cell will trigger an action potential. Conversely, an IPSP is inhibitory because it makes it less likely that the axon of the postsynaptic cell will trigger a
General Biology   shekerasarabia   76078   6   doseofmegan   10 years ago
Interesting Biology Facts
Interesting Biology Facts
Post something interesting and accurate that is related to biology / science...

I'll start:

Like humans, armadillos (below) can suffer from the disease leprosy. There are also cases of transmission of this disease from an armadillo to human.

[img width=259 height=194]http://t2.gstatic.com/images?q=tbn:ANd9GcRlBE1sDiQ9V6v2DeqMvpj3m 16I4CSzE
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News Articles and Discussion   bio_man   74999   226   54321abs   5 years ago
Three of the most prominent definitions of species are the biological species concept, the phylogene
Three of the most prominent definitions of species are the biological species concept, the phylogene
Part A - Comparing species definitions
Three of the most prominent definitions of species are the biological species concept, the phylogenetic species concept, and the morphological species (morphospecies) concept.
Drag each characteristic to the appropriate bin based on the species concept(s) to which it applies.

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In biology lab, you conduct a breeding experiment to test Mendel’s law of independent
In biology lab, you conduct a breeding experiment to test Mendel’s law of independent
I need help figuring this out!
Picture in attachment
Genetics and Developmental Biology   janay11   74624   5   drollgirl   10 years ago
[Free] - med surg test bank lewis 8th edition, do you have
[Free] - med surg test bank lewis 8th edition, do you have
i need a test bank for the medical surgical  book by lewis 8th edition....do you have one
Test Banks   twatkins   73286   10   biolove   5 years ago
The cell cycle represents the coordinated sequence of events in the life of a cell from its ...
The cell cycle represents the coordinated sequence of events in the life of a cell from its ...
The cell cycle represents the coordinated sequence of events in the life of a cell from its formation to its division into two daughter cells. Most of the key events of the cell cycle are restricted to a specific time within the cycle.
In this exercise, you will identify when various events occur during the cell cycle. Recall that interphase consists of the G1, G1 checkpoint, G
Cell Biology   jessiijessii   73253   bio_man   11 years ago
Determinants of Heredity and Genetic Variation
Determinants of Heredity and Genetic Variation
Meiosis guarantees that in a sexual life cycle, offspring will inherit one complete set of chromosomes (and their associated genes and traits) from each parent. The transmission of traits from parents to offspring is called heredity.
Another important aspect of meiosis and the sexual life cycle is the role these processes play in contributing to genetic variation. Although offs
General Biology   Peezy   72013   12   Coby Herndon   3 years ago
The stages of mitosis were originally defined by cellular features observable th
The stages of mitosis were originally defined by cellular features observable th
The stages of mitosis were originally defined by cellular features observable through a light microscope. The six micrographs below show animal cells (lung cells from a newt) during the five stages of mitosis, plus cytokinesis. (Note that interphase is not represented in these micrographs.) In these images, the chromosomes have been stained blue, microtubules green, and microfilamen
General Biology   sstev   70453   6   uheartnay   11 years ago
Endocrine System Physiology (PhysioEx 9.0)
Endocrine System Physiology (PhysioEx 9.0)
Can someone PLEASE help me with these ?.

EXERCISE 4:  Endocrine System Physiology

1.   The baseline metabolic rate (BMR) of the normal rat was approximately ________ ml O2/kg/hr.

2.   True or False:  The BMR of all three rats was approximately the same before treatment with thyroxine, TSH, or propylthiouracil.
   
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Anatomy and Physiology   cphnry   68047   36   ajcj babies   9 years ago
Meaningful Quotes
Meaningful Quotes
"Simplicity is the ultimate form of sophistication."

- Leonardo da Vinci
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News Articles and Discussion   bio_man   65831   239   6 years ago
[Notes] - MASTERING Astronomy Quizzes with Answers
[Notes] - MASTERING Astronomy Quizzes with Answers
Here Wink Face
Free Notes   biolove   64277   7   Rocky WTF   3 days ago
Excercise 27 Functional Anatomy of the Endocrine Glands Review Sheet 27 (Marieb)
Excercise 27 Functional Anatomy of the Endocrine Glands Review Sheet 27 (Marieb)
1.  Both the endocrine and nervous systems are major regulating systems of the body; however, the nervous system has been compared to an airmail delivery system and the endocrine system to the Pony Express.  Briefly explain this comparison:
  • The nervous system uses rapidly propagated electrical "messages"; whereas endocrine system "messages&quo
Anatomy and Physiology   plumcrazee   64212   12 years ago
List of Untrusted Sellers (Scammers)
List of Untrusted Sellers (Scammers)
!!! BUYERS WARNING !!!!!!

BUYERS PLEASE DO NOT BUY FROM THIS SELLER HE IS A FRAUD AND HE DOES NOT PRODUCE GOODS.....I USED PAYPAL AND SENT HIM $35 FOR A TEST BANK. AFTER THE INITIAL INTERACTIONS, HE NEVER RESPONDED BACK TO ME REGARDING MY TEST BANKS NOR DID HE SEND MY PURCHASED FILES. HE DID NOT RESPOND TO ANY OF MY EMAILS AND I HAD TO PUT A DISPUT CLAIM WITH PAYPA
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Test Banks   stickinaround   64149   95   bio_man   7 years ago
PhysioEx8.0 Digestion Lab
PhysioEx8.0 Digestion Lab
Disclaimer:
This is my personal homework and not an answer key. Use it to help-


Processes of Digestion Simulation Lab

Activity 1:

Salivary Amylase Digestion of Animal Starch
Tube no.   1   2   3   4   5   6   7
Additives   Amylase
Starch
pH 7.0
buffer   Amylase
Starch
pH 7.0
buffer   Amylase
Deionized
Anatomy and Physiology   tommygirl5012   63853   6   Rachel Simerlink   3 years ago
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