1. science...plz help

    What happens to the circulatory system when the red blood cells malfunction? and is there a disease with hemoglobin not taking carbon dioxide out of the body correctly or fast enough....plz plz help me..i really need this

    asked by g on April 22, 2007
  2. Science Plzz Help

    5. How do the circulatory system and the endocrine system interact in helping to maintain homeostasis in humans? A. The endocrine system produces hormones that are transported by the circulatory system to target cells when changes are needed. B. The

    asked by Mstv on June 2, 2014
  3. Science

    How do the circulatory system and the endocrine system interact in helping to maintain homeostasis in humans? A. The endocrine system produces hormones that are transported by the circulatory system to target cells when changes are needed. B. The

    asked by Anonymous on November 17, 2015
  4. Biology

    Does the circulatory system transport red and white blood cells? If so, how?

    asked by Barbie on May 15, 2011
  5. HELP PLSS SCIENCE

    2. Which of the following is responsible for carrying nutrients to and waste from the body’s cells? (1 point) plasma red blood cells red and white blood cells white blood cells 3. _________ defend the body against disease. (1 point) Fibrin Red blood

    asked by tesj on January 23, 2013
  6. science

    pick two systems in the body and explain how they interact interact with what? each other? elaborate plz. The respritory system and circulatory system are dependant upon each other. All respirations eventualy take place at the cellular level. When you

    asked by jon'dreneque on February 12, 2007
  7. science

    2. Which of the following is responsible for carrying nutrients to and waste from the body’s cells? (1 point) plasma red blood cells red and white blood cells white blood cells 3. _________ defend the body against disease. (1 point) Fibrin Red blood

    asked by tesj on January 23, 2013
  8. Science

    In which way does the circulatory system rely on the skeletal system? Glucose is secreted by compact bone as an energy source for blood. Spongy bone stores minerals needed by blood cells. Bones provide a source of oxygen to blood. Blood cells are produced

    asked by Anonymous on May 6, 2014
  9. science 1 question

    In which way does the circulatory system rely on the skeletal system? A. Glucose is secreted by compact bone as an energy source for blood. B. Spongy bone stores minerals needed by blood cells. C. Bones provide a source of oxygen to blood. D. Blood cells

    asked by SkatingDJ on February 3, 2015
  10. science: cells

    1~ What do red blood cells do and is there anything significantly different about them from other types of cells? 2~ What are bone cells and is there anything significantly different about them from other types of cells? (I just need help for studying i

    asked by Lesley on February 12, 2007
  11. Science

    The Body's Transport System 1) Which of the following is not a function of the circulatory system? :Breaks down large molecules*** :Delivers oxygen to body cells :Takes carbon dioxide away from body cells :Fights infection 2) Which of the following

    asked by TheLOUDEST_0430 on February 13, 2015
  12. math/ algebra?

    a lab technician draws a sample of blood. A cubic millitmeter of the blood contains 22^3 white blood cells and 22^5 red blood cells. What is the ratio of white blood cells to red blood cells?

    asked by Maggie on October 28, 2011
  13. Science Plzz Help

    1. Which of the following effects would you expect if red blood cells were shaped like neurons? A. They would not be able to move as easily through capillaries.***** B. They would more easily carry out gas exchange in the alveoli. C. They would not need to

    asked by Mstv on June 2, 2014
  14. helth plz help

    the blood vessels that carry blood away from the heart to the rest of the body are… plasma ****** red blood cells whight blood cells platelets 4.Which component of blood is used to help create a scab after you cut your finger? plasma red blood cells

    asked by bmx_kyle on March 2, 2015
  15. Biology

    Match the terms with the correct description: a. regulates supply of gases from ATP production b. provides negative feedback signals c. protects body against foreign dangers d. "rapid transit" for liquids and gases e. primary "regulator" of sensory

    asked by mysterychicken on March 21, 2010
  16. Biology

    Match the terms with the correct description: a. regulates supply of gases from ATP production b. provides negative feedback signals c. protects body against foreign dangers d. "rapid transit" for liquids and gases e. primary "regulator" of sensory

    asked by mysterychicken on March 20, 2010
  17. science

    Please help me with this. why is it that blood pump away from the heart under pressure? why is it necessary for blood to be oxygenated before pumped to the cells? Please this question is under the topic circulatory system.

    asked by Vanessa on August 28, 2012
  18. Biology

    *Yawn* Match the terms with the correct description: a. regulates supply of gases from ATP production b. provides negative feedback signals c. protects body against foreign dangers d. "rapid transit" for liquids and gases e. primary "regulator" of sensory

    asked by mysterychicken on March 21, 2010
  19. albebra

    a cubic millimeter of the blood contains 22 to the 3rd power of white blood cells and 22 to the 5th power of red blood cells What is the ratio of whiteblood cells to red blood cells?

    asked by lori on February 18, 2013
  20. Physics

    Blood flow rates in the umbilical cord can be found by measuring the Doppler shift of the ultrasound signal reflected by the red blood cells. If the source emits a frequency f, what is the measured reflected frequency fR? Assume that all of the red blood

    asked by Becky on January 13, 2016
  21. Plz, check my answers.

    1. Which of the following is not a function of the circulatory system? breaks down large molecules delivers oxygen to body cells **** takes carbon dioxide away from body cells fights infection 2. Which of the following explains why the heart is organized

    asked by Princess Anna on May 10, 2014
  22. Science-3 question

    1. Which of the following is not a function of the circulatory system? breaks down large molecules delivers oxygen to body cells **** takes carbon dioxide away from body cells fights infection 2. Which of the following explains why the heart is organized

    asked by Princess Anna on May 10, 2014
  23. Science Please Help Me

    5. Which one of the following is not a cause of anemia? a diet lacking in iron and certain vitamins germs from someone with anemia inherited problems relating to red blood cells. loss of a large amount of blood 6. Which of the following carries blood to

    asked by SmartyPants on March 12, 2015
  24. science Please Help Me

    5. Which one of the following is not a cause of anemia? a diet lacking in iron and certain vitamins germs from someone with anemia inherited problems relating to red blood cells. loss of a large amount of blood 6. Which of the following carries blood to

    asked by SmartyPants on March 12, 2015
  25. Health

    The three lines of defense your body has against disease include all except? A. physical and chemical defenses B. inflammation C. immune system D. scarring True or false B cells and H cells are two important cells in the immune system that help fight

    asked by Annabelle on November 17, 2015
  26. Science

    1. Which of the following is not a function of the circulatory system? Breaks down large molecules delivers oxygen to blood cells takes carbon dioxide away from body cells **Fights infection**

    asked by 444 on January 29, 2019
  27. Science

    1-Which of the following is not a function of the circulatory system? D-fights infection 2-Which of the following explains why the heart is organized so that it pumps blood to two different locations? D-to provide a way for blood to pick up nutrients at

    asked by Rodco on March 20, 2014
  28. health. please help! #6

    6. It is the middle of winter and like everyone else you have caught a cold, your body relies on your ______ to help you boost your immune system. A. Plasma B. Red Blood Cells C. White Blood Cells D. Platelets

    asked by Anonymous on March 13, 2015
  29. Science

    Hormones and Homeostasis 1) The human endocrine system is made up of which of the following structures? :Vessels. :Receptors. :Glands.*** :Chambers. 2. Which of the following best describes the function of the endocrine system? :It secretes chemical

    asked by TheLOUDEST_0430 on February 27, 2015
  30. Science

    1. The human endocrine system is made up of which of the following structures? (1 point) vessels receptors glands * chambers 2. Which of the following best describes the function of the endocrine system? (1 point) It secretes chemical messengers that

    asked by Maria on November 5, 2015
  31. Science Ms. Sue Please

    1. The human endocrine system is made up of which of the following structures? (1 point) vessels receptors glands * chambers 2. Which of the following best describes the function of the endocrine system? (1 point) It secretes chemical messengers that

    asked by Maria on November 5, 2015
  32. Math help plz

    The human endocrine system is made up of which of the following structures? (1 point) vessels receptors glands chambers 2. Which of the following best describes the function of the endocrine system? (1 point) It secretes chemical messengers that travel

    asked by Anonymous on May 20, 2014
  33. Science The Human Body PLEASE HELP!!!!!!!!!!!

    the human endocrine system is made up of which of the following structures? (1 point) vessels receptors* glands chambers 2. Which of the following best describes the function of the endocrine system? (1 point) It secretes chemical messengers that travel

    asked by Justin Bieber on March 25, 2015
  34. Cell Biology

    Suppose 1.00 ml of blood from a given donor contained 5 X 106 red blood cells and the donor’s hematocrit were 48%. Determine the surface area that the lipids extracted from the plasma membranes of red blood cells obtained from 10.0 ml blood would occupy

    asked by Cristian on September 21, 2013
  35. Biology

    Suppose 1.00 ml of blood from a given donor contained 5 X 106 red blood cells and the donor’s hematocrit were 48%. Determine the surface area that the lipids extracted from the plasma membranes of red blood cells obtained from 10.0 ml blood would occupy

    asked by Cristian on September 22, 2013
  36. Healthcare

    Could someone please let me know if I am on the right track with this paragraph and feel free to critique me very strictly as my instructor will do. My assignment was to explain what is in whole blood and what is the purpose of red cells,platelets and

    asked by Anonymous on August 5, 2008
  37. life science- 6th grade

    describe the path the blood flows through a bird's circulatory system. Begin with the right side of the heart. In the answer, explain where the blood picks up oxygen & where it releases the oxygen to the bird's body cells.

    asked by jarlette on November 25, 2008
  38. Science 8th grade

    Please check my answer thanks What makes up most of the volume of blod plasma ? A Reb blood cells B Water C Plasma proteins D White blood cells I think it's Red blood cells

    asked by Anonymous on March 25, 2008
  39. biology

    What happens to the circulatory system when the red blood cells malfunction?

    asked by notsure on April 22, 2007
  40. Living a Healthy Life

    Blood pressure is a measure of A. oxygen levels in the blood. B. the ratio of red blood cells to white blood cells. C. how hard the heart is working. D. the pressure exerted by hemoglobin against the vascular walls. D.

    asked by Amanda on November 21, 2014
  41. Living a Healthy Life

    Blood pressure is a measure of A. oxygen levels in the blood. B. the ratio of red blood cells to white blood cells. C. how hard the heart is working. D. the pressure exerted by hemoglobin against the vascular walls. D.

    asked by Amanda on November 21, 2014
  42. statistics

    Ashley and Sanjay are donating blood at a local hospital. As a standard practice, the blood is screened for anemia (low levels of red blood cells), and the results are given to each donor as a z score, ranging from negative scores (low amounts of red blood

    asked by Sally on April 14, 2014
  43. Chemistry

    Uhmmm.. I am totally lost! Help? There are 7.0 x 10^6 red blood cells in 1.0 mm^3 of blood. How many red blood cells are in 1 L of blood?

    asked by Kayla on October 6, 2012
  44. science

    in any given mm3 of blood, what is the approximate ratio of the number of red blood cells(erythrocytes)to white blood cells (leukocytes)?

    asked by tesha on October 10, 2010
  45. Biology

    Which of the following is the purpose of valves in the venous circulatory system? A. Promoting movement of oxygenated blood toward the heart B. Facilitating stasis of blood in the veins C. Propelling blood through the vena cava D. Preventing backward flow

    asked by J on July 27, 2014
  46. Chem Help!!

    The volume of a red blood cell is about 90.0*10^-12cm^3 Assuming that the red blood cells are spherical, what is the diameter of a red blood cell in millimeters?

    asked by Lisa on February 2, 2013
  47. phy

    Doppler ultrasound is used to measure the speed of blood flow. If the speed of the red blood cells is v, the speed of sound in blood is u, the ultrasound source emits waves of frequency f, and we assume that the blood cells are moving directly toward the

    asked by kira on April 12, 2013
  48. BIOLOGY

    Hi, For my biology homework, I need to know some things about: red blood cells white blood cells (both types) platelets and I still cant find some info- -where they are made -length of life of cell Thanks! Jessica

    asked by Jessica on October 17, 2006
  49. Health

    The sebaceous glands secrete sebum, or ______, into the hair shafts. A. Hormones B. Oil C. White blood cells D. Red blood cells I don't have a clue maybe B

    asked by Bryce on April 11, 2016
  50. Biology

    What are the levels of organization in a living system? LEVEL 1 - Cells Are the basic unit of structure and function in living things. May serve a specific function within the organism Examples- blood cells, nerve cells, bone cells, etc. LEVEL 2 - Tissues

    asked by jayjay on August 8, 2007
  51. Biology

    20. One difference between a gastrovascular cavity and a one-way digestive system is the presence or absence of a. cell specialization b. digestive enzymes c. digestion within body cells d. a moist membrane for nutrient diffusion A? 21. In an open

    asked by mysterychicken on March 4, 2010
  52. Biology

    20. One difference between a gastrovascular cavity and a one-way digestive system is the presence or absence of a. cell specialization b. digestive enzymes c. digestion within body cells d. a moist membrane for nutrient diffusion A? 21. In an open

    asked by mysterychicken on March 4, 2010
  53. health

    The cardiovascular system is also known as the ________. A. Blood pathway system B. Heart gateway system C. Circulatory system D. Vascular crossings system A?

    asked by Martin1162 on March 11, 2016
  54. biology

    My question pertains to what happens to red blood cells in various solutions and why. I have found everything except what happens to a red blood cell placed in physiological saline and why. Anyone know?

    asked by Susan on February 4, 2008
  55. science

    1. The liquid part of the blood is called _____. (1 point) hemoglobin plasma platelets white blood cells 2. Your circulatory system can best be compared to _____. (1 point) gates a net pipes a balloon 3. Which of the following shows the correct order of

    asked by Anonymous on January 31, 2016
  56. blood/science

    how are blood types determined? A. marker mocules marked on red blood cells B. Marker mocules marked on white blood cells C. Plasma fibrin's precense D. Blood available for transfusion

    asked by sciencemaster21212121 on January 20, 2015
  57. biology

    Humans have yet another antigen system on their red blood cells. The MN blood group refers to a different antigen controlled by codominant alleles (MM, MN, and NN). A woman with blood types (O, MN, Rh+) had a baby with a man with the blood types (AB, N,

    asked by maath on January 12, 2020
  58. health

    Which one of these statements is true regarding blood circulation? A. For health and survival, it's critical for blood circulation to be ongoing and uninterrupted. B. Normally, blood circulates in a repeating stop-start rhythm. C. The heart deoxygenates

    asked by AK on July 28, 2008
  59. health

    When comparing the blood smears of patients with intact spleens to those of patients without spleens, the blood smears of patients without spleens will likely reveal A. many more fragile and old erythrocytes. B. many more lymphocytes and monocytes. C. many

    asked by Jackie on June 30, 2010
  60. Lab math

    You are doing a red blood count with a standard dilution of 1/200. The area counted is 10 red squares in a Neubauer chamber. Under these conditions, what is the factor that would be used to determine the number of cells in the undiluted blood?

    asked by Anon on August 7, 2013
  61. statistics

    When red blood cells are counted using a certain electronic counter, the standard deviation (SD) of repeated counts of the same blood specimen is about .8% of the true value, and the distribution of repeated counts is approximately normal. For example,

    asked by Asmaa on December 12, 2009
  62. science

    for blood what would be the difference in seeing a) plasma b) red blood cells c) white blood cells d) and platelets under a low powered microscope vs. a high powered microscope

    asked by Jackie on June 18, 2008
  63. Science Please

    Which of the following carries blood to every part of the body? (1 point) blood vessels the heart lymph nodes the ventricles 7. Nutrients and oxygen diffuse into body cells from ______. (1 point) arteries the aorta capillaries veins 8. The leading cause of

    asked by SmartyPants on March 22, 2015
  64. Science Please

    Which of the following carries blood to every part of the body? (1 point) blood vessels the heart lymph nodes the ventricles 7. Nutrients and oxygen diffuse into body cells from ______. (1 point) arteries the aorta capillaries veins 8. The leading cause of

    asked by SmartyPants on March 22, 2015
  65. Science Help

    Which of the following carries blood to every part of the body? (1 point) blood vessels the heart lymph nodes the ventricles 7. Nutrients and oxygen diffuse into body cells from ______. (1 point) arteries the aorta capillaries veins 8. The leading cause of

    asked by YOLO on March 22, 2015
  66. Biology

    When looking at a sample of blood for White Blood Cell's, what could you do to reduce interference from Red Blood Cells?

    asked by KJack on February 4, 2012
  67. Peinciples of Management

    a 31 year old female contracted HIV human immunodeficiency syndrome) Ordinarily harmless infections are deadly to her. Which answer below best explains how her antibody-response (b cell immunity) became weakened even though HIV primarily infects cells

    asked by Sabrina on February 18, 2013
  68. also...

    also is it true that the nervous system needs the blood to circulate better so it could get to the skin and help the nerves work correctly.... Yes, the nervous system needs blood to make the nerve cells operate. See:

    asked by notsure on April 22, 2007
  69. Science--check my answers.

    1. Which of the following effects would you expect if red blood cells were shaped like neurons? They would not be able to move as easily through capillaries. **** They would more easily carry out gas exchange in the alveoli. They would not need to be

    asked by Anonymous on May 21, 2014
  70. Check my answers? thank you.

    1. Which of the following effects would you expect if red blood cells were shaped like neurons? They would not be able to move as easily through capillaries. **** They would more easily carry out gas exchange in the alveoli. They would not need to be

    asked by Princess Anna on May 22, 2014
  71. Biology

    A person with AB blood type is transfused with type O blood. What happens and why? ---- The textbook says there will be no immune reaction. I understand that the transfused type O red blood cells have no antigens and the recipient type AB plasma has no

    asked by Jessie on December 14, 2012
  72. Biology

    What will happen when deionized water is added to red blood cells and then left to sit for 15 minutes? Will the blood cells mix with the water immediately and make a paler solution or will they be more dense than the water and sink to the bottom?

    asked by Ejda on October 1, 2007
  73. Math

    a technician draws 10 cc of a patients blood to be tested for cholesterol and for red blood cells. identify a.the sample b.the population c. the variable being studied i attempted but im not sure if its right...i said a) the 10 cc of blood b) the patients

    asked by Diana on September 20, 2011
  74. Statistics

    When red blood cells are counted using a certain electronic counter, the standard deviation (SD) of repeated counts of the same blood specimen is about .8% of the true value, and the distribution of repeated counts is approximately normal. For example,

    asked by Sarah on December 12, 2009
  75. science

    what are cells made from? Please, what kind of cells? There are many kinds. Jail cells, hive cells, plant cells, animal cells, blood cells, brain cells. We need a more definitve question.

    asked by simrandeep on April 18, 2007
  76. Science

    Human Body & Disease Practice 1) Which of the following effects would you expect if red blood cells were shaped like neurons? :They would not be able to move as easily through capillaries.*** :They would more easily carry out gas exchange in the alveoli.

    asked by TheLOUDEST_0430 on March 3, 2015
  77. Biology

    . Which of the following parts of the circulatory system carries oxygenated blood? A An artery moving blood from the heart to the lungs B. A vein moving blood to the heart from the body C. An artery moving blood from the heart to a muscle cell D. A venule

    asked by Dulce on July 14, 2014
  78. Biology/ a&p

    Which of the following parts of the circulatory system carries oxygenated blood? A. An artery moving blood from the heart to the lungs B. A vein moving blood to the heart from the body C. An artery moving blood from the heart to a muscle cell D. A venule

    asked by J on July 24, 2014
  79. Health last questions.

    Physical lines of defense include A. skin, cielia, and mucous membranes *** B. hair C. nails D. teeth When a doctor feels for lymph nodes, he is checking for A. inflammation *** B. shrinking C. pain D. sensitivity Your body can get antibodies from A.

    asked by Ann on March 11, 2015
  80. chemistry

    A patient with polycythemia vera(excess production of red cells) receives raioactive phosphorus-32. Why would this treatment reduce the production of red blood cells in the bone marrow of the patient?

    asked by Boo Boo on October 7, 2012
  81. biology

    which leukocyte is predominant in the blood smear? explain by comparing it with other leukocytes ad red blood cells in the blood smear

    asked by art on February 7, 2012
  82. biology college

    which leukocyte is predominant in the blodd smear?explain by comparing it with other leukocytes and red blood cells in the blood smea

    asked by izzat on January 29, 2013
  83. Biology 20

    Which blood cell is able to reproduce inside the circulatory system and why?

    asked by Laurie on June 4, 2008
  84. Science

    What part of the circulatory system moves the blood through your body?

    asked by Kyle on October 16, 2013
  85. Biology

    Explian how one-way flow of blood is maintained in the circulatory system.

    asked by jake on November 24, 2009
  86. biology 2

    The digestive, circulatory, respiratory, immune, and excretory systems all work together to maintain homeostasis. Discuss how a minor malfunction in one of these systems could lead to major malfunctions in others. If methods were developed to improve the

    asked by rayan on October 14, 2013
  87. biology 2

    The digestive, circulatory, respiratory, immune, and excretory systems all work together to maintain homeostasis. Discuss how a minor malfunction in one of these systems could lead to major malfunctions in others. If methods were developed to improve the

    asked by sheehan on June 25, 2012
  88. Science

    How are the respiratory and circulatory and respiratory systems similar? A) Both systems provide glucose and other substances to cells. B) Both systems regulate blood flow throughout the body. C) Both systems help remove carbon dioxide from the body. D)

    asked by Julie on March 30, 2018
  89. Science

    the ventricle in a single-loop circulatory system is responsible for A. receiving blood from the body. B. pumping blood out to the gills. C. pumping blood out to the body. D. receiving blood from the gills. I think it is A or C. Thank You.

    asked by Cassie on May 19, 2014
  90. biology

    describe the pathway of blood through the prts of the earthworms circulatory system

    asked by varun on May 18, 2017
  91. cells

    what are the properties of blood cells. Since this is not my area of expertise, I searched Google under the key words "blood cells" to get these possible sources: http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/B/Blood.html

    asked by Nicolas on May 20, 2007
  92. Health

    Blood typing is based on ______ on the surface of the red blood cells. A. antigens B. protein C. antibodies D. a Rubella titer i am thinking B again im not 100% just wanted to see if i was correct. please help

    asked by Anonymous on November 3, 2008
  93. science

    Describe the path of blood through a bird's circulatory system. Start with the right side of the heart. Also explain where the blood picks up oxygen and where it releases the oxygen to the bird's body.

    asked by stephania on June 6, 2010
  94. science

    1.Which level of organization does the complete skeleton of a mouse belong to? A.cell B. a tissue C.an organ D.an organ system 2. The structures that an animal uses to exchange gases with its surroundings make up the... A. digestive system B. respiratory

    asked by finessky on November 20, 2018
  95. bio

    the systemtic system of the heart sends oxygenated blood and nutrients to all body cells. If the questions were does it send oxygenated blood and nutrients to all body tissue would the answer be yes or no. cells make tissues so would it be yes?

    asked by jb on February 1, 2010
  96. 6th grade SCIENCE

    I am doing a project on echinoderm and one of the questions is asking about if they have a circulatory system. I have found information that they have a poorly defined opened circulatory system. I also need to answer the difference between if it's closed

    asked by peyton on November 19, 2010
  97. Science Plzz Help

    2. Which of the following best describes the function of the endocrine system? A. It secretes chemical messengers that travel through the blood to signal changes at target cells. B. It binds chemical messengers that travel through the blood from target

    asked by Mstv on June 2, 2014
  98. biology

    Ok i have a project Im doing on the red blood cells and I need to know how the blood cools down the body.... It depends. If it's colder than your body temp (say 70 degrees) then as the blood circulates close to the surface (near the skin) it looses heat to

    asked by notsure on April 22, 2007
  99. Sciencee

    which of the following best describes the function of the endocrine system A. it secretes chemical messengers that travel through the blood to signal changes at target cells. B. It blinds chemical messengers that travel through the blood from target cells.

    asked by princess Princess on February 12, 2015
  100. Science

    a biologist diluted a blood sample with distilled water. While observing the sample with a microscope, she noted that the red blood cells had burst. This bursting is most likely the result of which process?

    asked by Anonymous on September 27, 2017