Thursday
September 29, 2016

Homework Help: Science: Biology

Recent Homework Questions About Biology

urgent mc biology
After the blood in is the left heart you would next find it (a)entering the lungs. (b)entering the tissues, like muscles. (c)entering the right heart. (d)leaving the lungs. (e)leaving the tissues, like the muscles. Please help
Wednesday, September 28, 2016 by madison

urgent mc biology
Which of the following do you have less of at the end of cellular respiration than at the beginning? (a)Co-enzyme A (b)ATP synthase (c)ADP (d)the proteins of the electron transport chain (e)FADH2
Wednesday, September 28, 2016 by madison

multiple choice biology
Which of the following do you have less of at the end of cellular respiration than at the beginning? (a)Co-enzyme A (b)ATP synthase (c)ADP (d)the proteins of the electron transport chain (e)FADH2 Please help
Tuesday, September 27, 2016 by madison

biology
After the blood in is the left heart you would next find it (a)entering the lungs. (b)entering the tissues, like muscles. (c)entering the right heart. (d)leaving the lungs. (e)leaving the tissues, like the muscles. Please help
Tuesday, September 27, 2016 by madison

Biology
Please fill in the blanks : Proteins _____make up the _______ materials , hormones , and enzymes in living things to function correctly .
Tuesday, September 27, 2016 by Ella

Biology
6. Consider an experiment in which starch is dissolved in a liter of water. Some of the solution is placed into a securely tied dialysis bag. The dialysis bag is placed into a beaker containing distilled water and iodine for 30 minutes. What are the correct answers for the ...
Tuesday, September 27, 2016 by Lily Grace

Maths
In a class of 60students,the number of student passed Biology is 6 more than the number of student passed Chemistry,8 student passed both subject.How many student passed Biology,how many student passed Chemistry,how many student passed only one subject?
Tuesday, September 27, 2016 by Asare

biology ms sue
which of the following is an example of human-caused durbance to an ecosystem a. a tsunmi destroys a coastal forest and causes flooding b. a river is diverted to irrigate farmlands during a drought* c. after a volcanic eruption, global avarage temperatures lower d. the snow ...
Monday, September 26, 2016 by oto

biology
which of the following is an example of human-caused durbance to an ecosystem a. a tsunmi destroys a coastal forest and causes flooding b. a river is diverted to irrigate farmlands during a drought c. after a volcanic eruption, global avarage temperatures lower*** d. the snow ...
Monday, September 26, 2016 by oto

Biology
Why does humans perceive a red dress as the color red? A- The molecules of the dress do not absorb red light wavelengths B- The molecules of the dress absorb green and blue light wave lengths C- A red dress will primarily absorb red light wave length D A red dress will not ...
Monday, September 26, 2016 by dss

Biology
Light absorption by a pigment is measured for red, blue, green, and yellow light.
Sunday, September 25, 2016 by Anonymous

Biology
What is the energy of helium in its second excited state
Sunday, September 25, 2016 by Misha

biology
is c2h5 polar or non polar?
Saturday, September 24, 2016 by kailyn

Biology
Explain the structure of a water molecule and how hydrogen bonding leads to some of its very special properties. Be sure to include how these properties are important to life on Earth
Saturday, September 24, 2016 by Kayla

maths
In a class of 60 students, the number of students who passed biology is 6 more than the number who passed chemistry. Every student passed at least one of the two subjects and 8 students passed both subjects. I) how many students passed biology? ii) how many students passed ...
Wednesday, September 21, 2016 by ob

Biology
1.) All of the following statements correctly describe a polarized membrane except for: A.) a resting membrane potential of -90 mV indicates that there are more positive ions inside the axon than an RMP of -70 mV B.) A resting membrane potential of -60 mV indicates that there ...
Tuesday, September 20, 2016 by Heaven

maths
In a class of 80 students, 53 study Art, 60 study Biology, 36 study Art and Biology, 34 study Art and Chemistry, 6 study Biology only and 18 study Biology but not Chemistry. Illustrate the information on a Venn diagram. Determine the number of students who study (I) Arts only...
Tuesday, September 20, 2016 by Kwame

biology/science
Oxygen attracts electrons more strongly than hydrogen does. What kind of bond forms between the two hydrogen atoms and single oxygen atom that form a water molecule? A. A metallic bond B. A hydrogen bond C. An ionic bond D. A polar bond Currently stuck here.
Monday, September 19, 2016 by Logan

Biology
I would like some help if that is OK, like soon!:) 1.) A group of scientists proposes an idea that a chemical compound will enable bean plants to grow faster. They grow one group of bean plants in the presence of the compound and another group in the absence of the compound. ...
Monday, September 19, 2016 by Jessica

Biology
Emergency room doctors often shine a light into the eyes of patients with potential trauma to the brain to test their pupillary reflex. This is an important method in determining possible damages in the following areas of the nervous system, except: A.) optic nerve and ...
Friday, September 16, 2016 by Cherie

Biology
You begin with 10 ml of 2% acetic acid, and you add 90 ml of water. We will call the resulting solution "dilution#1". What is its concentration? You then repeat the dilution exactly, using 10ml of Dilution #1, adding 90 ml of water. We will call the resulting ...
Friday, September 16, 2016 by Ham

Biology
three similar celery stalks are placed in solution of dye for 5 mins to examine diffusion in living cells. what are some possible sources of error? suggest improvements to the experimental design?
Thursday, September 15, 2016 by Anonymous

stats
Jason, a freshman at a local college, just completed 15 credit hours. His grade report is presented below. Course: Calculus, Biology, English, Music, P.E. Credit Hours 5, 4, 3, 2, 1 Grades C, A, D, B, A The local university uses a 4 point grading system, i.e., A = 4, B = 3, C...
Thursday, September 15, 2016 by Ana

Biology
A farmer sets up a buffalo farm in this ecosystem. Over time, the buffalo greatly reduce the grass biomass in the community. Explain how the introduction of this new species could affect the amount of energy transferred within the food chain.
Wednesday, September 14, 2016 by Abigail

Biology
why is protein folding important to enzyme activity?
Wednesday, September 14, 2016 by Robert

Biology
why is protein folding important to enzyme activity?
Wednesday, September 14, 2016 by Fun

Biology
why is protein folding important to enzyme activity?
Wednesday, September 14, 2016 by Stephen Curry

biology
Both of the following processes represent what? A. A baker using yeast to make dough rise. B. Inserting human insulin genes into bacteria to make insulin for diabetics. biotechnology transgenic organisms genetic engineering all of the above
Wednesday, September 14, 2016 by katrina

Cell Biology Help Please!
1) AMP -activated protein kinase (AMPK): Option A: is activated by both AMP and ADP. Option B: undergoes allosteric regulation. Option C: all of the choices are correct. Option D: adds phosphate groups to serines and threonines in other enzymes. 2) Which of the following ...
Tuesday, September 13, 2016 by Saki

Biology
Which one of the following is NOT blood parasite? (A)plasmodium(B)trypanosoma(C)trichinell​a(D)L.donovani
Tuesday, September 13, 2016 by Bibek

biology
Which of the following is the definition of ecology? -the social movement with a goal to protect the environment -the recycling of human-made materials to reduce the waste going into landfills -the study of interactions among organisms and between organisms and their ...
Tuesday, September 13, 2016 by oto

Biology
Jacobie wanted to test the projectile motion of a pumpkin. His hypothesis was "if the pumpkin had a larger mass, then the higher he could throw it, because the larder pumpkins would have more force." He bought three orange pumpkins and test them all on the same day. ...
Saturday, September 10, 2016 by Anonymous

Biology
Living organisms are composed of millions of organic compounds, each having a unique structure. What element is responsible for this huge diversity of molecules? Describe the diversity of structures that can be formed and the properties of this element that allow this ...
Saturday, September 10, 2016 by Sage

physics
How do the laws of physics apply to others sciences such as biology chemistry and earth science? And give an example to show the connection.
Tuesday, September 6, 2016 by nulloa

9th Grade Biology
You set up 5 samples that contained a range of sucrase concentrations but the same amount of substrate (sucrose). - The pH was kept constant in all tubes buy using the same amount of buffer. - The temperature was kept constant in all tubes (room temp) - A negative control was...
Tuesday, September 6, 2016 by Mellisa B

9th Grade Biology
Sometimes, a new experimental result may seem to go against a well-established scientific theory. Often, such results seem like they are the results of researcher error. Regardless, scientists cannot just ignore new findings that disagree with accepted ideas. Which statement ...
Tuesday, September 6, 2016 by Mellisa B

9th Grade Biology
Cell theory is based on a series of discoveries. In 1655, Robert Hooke coined the word "cell" from his investigations of cork cells. Almost two hundred years later, Schleiden and Schwann proposed the cell theory that states that: All life forms are made from one or ...
Tuesday, September 6, 2016 by Mellisa B

Biology
What are the examples for dehydration synthesis and hydrolysis?
Sunday, September 4, 2016 by Stephen Curry

biology
1. Suppose you plant a seed and observe that a tree of large mass grows from it. The tree achieves a final mass that changes very little for years afterward. Which of the following is true about the tree? (1 point) Both anabolic and catabolic reactions took place in the seed ...
Friday, September 2, 2016 by 9th grader

general biology
Describe how an organism broken down into smaller components?
Friday, September 2, 2016 by may

biology
which of the following is consistent with the theory of vitalism ? A.all matter contains a vital force** b.the chemistry of life and nonlife are similar c. living things contain a vital force absent in nonliving things d. life must be sustsained through a series of chemical ...
Thursday, September 1, 2016 by 9th grader

AP Biology
I have the compound C20H24O2N2, A quinine molecule The Question: Calculate the molarity of 100.7g of quinine in 275 mL of water.
Thursday, September 1, 2016 by Marcelo

AP Biology
I have the compound C30H62, the candle The question is: When a candle is burned, 150.0 liters of O2 (g) is used up. How many grams of oxygen react?
Wednesday, August 31, 2016 by Marcelo

biology
explain the following statement: "life is complex on the molecular level"
Wednesday, August 31, 2016 by Bob

Biology
Explain the following statement: "life is complex on a molecular level. How is your environment different from the biosphere?
Wednesday, August 31, 2016 by Steve

Biology
A biology student is studying ways to grow crops in soils that are high in salts and other dissolved solids. To determine whether corn plants can tolerate salty soil conditions, she grows one corn plant in typical non-salty soil and one corn plant in the same soil plus 0.5 ...
Wednesday, August 31, 2016 by Mellisa B

Biology Vocab
This is an error in measurement that can be caused by an imperfection in the equipment being used or from mistakes the experimenter makes while taking the measurement.
Wednesday, August 31, 2016 by Mellisa B

Biology Vocab
This is the degree at which a test measures what it is intended to measure. It a Vocab word but im not sure which one. Please help ASAP
Wednesday, August 31, 2016 by Mellisa B

Biology
What is the sample size in this experiment? How can you tell what the sample size is in this case? A team of researchers observed that the acorn density of the oak forests in New York fluctuates from year to year and that mice populations in the forest were increased when the ...
Tuesday, August 30, 2016 by Jamie

Biology
The question is exactly like this: The nurse is reviewing a client's blood ph level. which of the systems in the body regulate blood Ph? select all that apply A.buffers b.respiratory c.renal d.cardiac
Tuesday, August 30, 2016 by Bia

biology
Which organelle(s) are likely to be involved in the reduced efficiency of amino acid recycling in wimpys liver cells?
Thursday, August 25, 2016 by Sarah

biology
Color blindness is a defect in vision of colors, this defect is due to a localize-homologous segment of chromosome X. In the document I have a pedigree which the parents and their children are normal; but then most of the children got married to a diseased one which 50% ...
Thursday, August 25, 2016 by maria

biology
1. how does the density of ice compare to that liquid water and why is that property important to aquatic oranisms a. the density of ice is higher than that liquid water, which means that ice forms from the bottom of lakes upward , protecting aquatic life in waterI b. the ...
Tuesday, August 23, 2016 by 9th grader

biology
1. how does the density of ice compare to that liquid water and why is that property important to aquatic oranisms a. the density of ice is higher than that liquid water, which means that ice forms from the bottom of lakes upward , protecting aquatic life in waterI*** b. the ...
Tuesday, August 23, 2016 by 9th grader

biology
how do electrons move
Monday, August 22, 2016 by mpofu

biology
which of the following is not a characteristic of life A. maintains homeostasis B. composed of cells C. composed of atoms D. carries out metabolism which of the following must be true to consider something to be alive? A. it must be able to replicate it's DNA B. it must be...
Wednesday, August 17, 2016 by leslie

biology
which of the following is not a characteristic of life A. maintains homeostasis B. composed of cells C. composed of atoms D. carries out metabolism which of the following must be true to consider something to be alive? A. it must be able to replicate it's DNA B. it must be...
Wednesday, August 17, 2016 by leslie

biology
In a cross between a white-eyed female fruit fly and red-eyed male, what percent of the female offspring will have white eyes? (White eyes are X-linked, recessive)
Wednesday, August 17, 2016 by sami

biology
Could a man with type B blood and a woman with type AB blood produce a child with type O blood? Explain
Wednesday, August 17, 2016 by sami

biology
Albinism (lack of pigment) is caused by a recessive allele in humans. If normal parents have an albino child, what is the probability that their next child will be normal for pigment?
Wednesday, August 17, 2016 by sami

Biology
why is water vital to maintaining a constant internal environment? A. It is cohesive* B. It is adhesive C. It is a good solvent D. It has a high specific heat
Tuesday, August 16, 2016 by Shun

Biology
How are cohesion and adhesion of water ar linked to photosynthesis
Tuesday, August 16, 2016 by Henry

Biology
Which of the following properties of water would be most important in protecting a fish in a shallow pond on a hot summer day? A. the low density of water in the solid phase B. water's strong forces of adhesion C. the high specific heat of water D. water's solvent ...
Monday, August 15, 2016 by Amber

biology
: How are cohesion and adhesion properties of water linked to photosynthesis
Saturday, August 13, 2016 by Nchimunya

Biology
How are cohesion and adhesion properties of water linked to photosynthesis
Friday, August 12, 2016 by Tabo

Biology
1. Which of the following is not a characteristic of life? A. maintains homeostasis *** B. composed of cells C. composed of atoms D. carries out metabolism 2. Which of the following must be true to consider something to be alive? A. It must be able to replicate its DNA. B. It ...
Wednesday, August 10, 2016 by Amber

biology
Discuss physiologically the importance of human tissues
Monday, August 8, 2016 by lyn aliƱabon

biology
Discuss morphologycally the human tissues
Monday, August 8, 2016 by lyn aliƱabon

biology
How are cohesion and adhesion properties of water linked to photosynthesis?
Sunday, August 7, 2016 by harold

AP Biology
What are the phenotypes of the long-nosed cusimanse? I can't find any site about their body structure or function either.
Saturday, August 6, 2016 by Annie

biology assignment
How are cohesion and adhesion properties of water linked to photosynthesis
Thursday, August 4, 2016 by Roberta

biology
Which of the following properties of water would be most important in protecting a fish in a shallow pond on a hot summer day? the low density of water in the solid phase water's strong forces of adhesion water's high specific heat water's solvent properties
Thursday, August 4, 2016 by Nyanka

Biology assignment
How are cohesion and adhesion properties of water linked to photosynthesis
Thursday, August 4, 2016 by Namuyaba

Science (Biology)
In a species of rodent, fur colour may be black or brown and their tail length either long or short. A pair of rodents were crossed, and their progeny then allowed to interbreed. The result in the F2 were as follows: 29 with brown fur with long tails; 9 long tailed with black ...
Saturday, July 30, 2016 by Khalid

Math
In a group of 500 students, 150 are studying physics, 220 are studying biology, and 100 are studying chemistry. At least 25 students are studying more than one of these sciences. What is the greatest possible number of these students that might NOT be studying any of these ...
Wednesday, July 20, 2016 by Anonymous

biology
Give two reasons why the pressure decreases as blood flows along the capillary bed.
Saturday, July 16, 2016 by Scarleter

Biology
1. When and where was the first cell born? How did it happen? 2. What are the circumstances that make the appearance of the cell in this earth? 3. What are the differences between prokaryotic and eukaryotic cell? How about plant and animal cell?
Sunday, July 3, 2016 by mike

Biology
A tabacoo plant hetrozygous for recessive trait of albunism is selfed and 1200 seeds are ontained. How many seedlings obtained from such seeds will have prevent genotype. 1) 900 2) 300 3) 600 4) 1200
Sunday, July 3, 2016 by sanjana

Biology
Four different molecules are shown below. For each, indicate if it would be found in region A, B, C, and D. An image of the structure of glucose. Molecule Found in Region A Found in Region B Found in Region C Found in Region D An image of the structure of benzene. Molecule ...
Thursday, June 30, 2016 by Antonio

Biology
how to maintain the qualities of water ?
Wednesday, June 29, 2016 by luna

Biology
If two samples of DNA are different concentrations and I was to add them, I do need to divide by the total volume, right?
Monday, June 27, 2016 by Anonymous2.0

biology
A man with brown eyes and dark hairs (whose father was blue eyed),marries a woman with blue eyes and blue curly hairs (whose mother was red straight hair). They have 4 children. What is the genotype of children 1)BbRR:BbRr:bbrr:bbRR 2)BbRR:BbRr:bbRr:bbRR 3)BbRr:BbRr:BbRR:bbrr ...
Monday, June 27, 2016 by sonia

Biology
To a curly haired mother and straight haired father 8 children are born. The ratio of curly and straight haired will be 1) 6:2 2) 4:4 3) 2:6 4) 3:5
Sunday, June 26, 2016 by Sanjana

biology
31. A student conducts an investigation in which she dissolves 1 gram (g) each of several substances in 50 milliliters (ml) of water. She has 12 identical plastic cups of water. She places 1 g of salt in three cups, 1 g of sugar in three cups, and 1 g of baking soda in three ...
Saturday, June 25, 2016 by Anonymous

Biology
* what do organisms needs ? * how do organism secure what they needs ? * what are the attributes of life ?
Thursday, June 23, 2016 by macy

Biology
If one of your skin cells divides, how many chromosomes will be found in the daughter cells? Number of chromosomes a human cell has before and after mitosis?
Monday, June 20, 2016 by Science

Biology Help Please!
1) Which tube will be most 'yellow' at the end of the experiment? ( For Enzyme Kinetics Experiment) a) Substrate Concentration: 0.006M (my answer) Inhibitor: absent b) Substrate Concentration: 0.006M Inhibitor: un-competitive inhibitor present c) Substrate ...
Sunday, June 19, 2016 by Kimberly

Biology Help Please!
1) Which tube will be most 'yellow' at the end of the experiment? a)Substrate Concentration: 0.006M Inhibitor: absent b)Substrate Concentration: 0.006M Inhibitor: un-competitive inhibitor present c) Substrate Concentration: 0.0005M Inhibitor: un-competitive inhibitor ...
Saturday, June 18, 2016 by Kimberly

Biology
What is the actual storage of energy in the muscles? ATP or Glycogen?
Saturday, June 18, 2016 by Asmaa khalaf

Biology Help Please!
Bacterial Gene Transfer - Conjugation Please Clarify These Questions For Me! 1) Explain the purpose of the controls used in the mating experiment 2) It is necessary to make dilutions prior to plating in Week 1 in order to obtain single colonies. Why are single colonies ...
Wednesday, June 15, 2016 by Tim

biology
chemical reaction involve changes in bonds between atoms. true or false
Friday, June 10, 2016 by shun

Biology
Uable to find correct answer: In general it is expected_____________ A) hydrostatic pressure will remain constant throughout the capillary bed B) osmotic pressure will be higher in the arteriole end of the capillary bed compared to the venous end C) osmotic pressure will be ...
Friday, June 10, 2016 by Mary

Math
In a class of 100 students, 40 offer Biology and 10 offer Chemistry and Biology .10 offer Physics and Chemistry , and 30 offer Physic and Biology . Each student offer at least one of the three subjects. The number of students who offer Biology is equal to those who offer ...
Thursday, June 9, 2016 by Delson

biology
A student wants to design an experiment to demonstrate the effects of acid rain on plant life. Which of the following substances should be combined with water to best simulate acid rain? A. Vinegar B. Table salt C. Baking soda D. Ammonia
Sunday, June 5, 2016 by Anonymous

biology
what is the habitat,observable features,economic importance,scientific name,behavioural adaptation,mode of feeding and other necessary details of a cricket.
Saturday, June 4, 2016 by C A C WORLDWIDE

plzzz help immediately biology
what is cohabitation
Friday, June 3, 2016 by cutiepieeee

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?
Monday, May 30, 2016 by rfvv

Biology
If a man has cystic fibrosis and his wife is a carrier of the gene, what is the likehood of their offspring having the disease ? Use a punnet square to justify your answer
Monday, May 30, 2016 by Hafsah

Biology
Outline the process of sampling along a transect
Sunday, May 29, 2016 by Hafsah

Biology
If a man has cystic fibrosis and his wife is a carrier of the gene, what is the likehood of their offspring having the disease? Use a punnet square to justify your answer
Sunday, May 29, 2016 by Hafsah

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Homework Help: Science