science, biology

40,352 results, page 70

Biology

If water were not a polar molecule and could not form hydrogen bonds, how would this change the structure and density of ice? Why would change? How would this affect the organisms living in lakes and ponds? 1. It would be heavier than water and sink. 2. If ice were on the ...

biology

In tomatoes, red fruit is dominant to yellow fruit color. A farmer has plants that produce either red or yellow tomatoes. he has signed a contract with a large seed company to provide pure red dees and pure yellow seeds. the do not want hybrids. How can the farmer determine if...

Math

Practice Dividing by 9 History : 72 Art: 81 Science: 54 Travel: 63 Fiction: 90 Biography: 45 Poetry: 27 Cooking: 36 1/Raul might put an equal number of each kind of book on 9 shelves. How many types of books will have an even number on each shelf? Answer: 3 types of books.. ...

Biology

The name of each job is writte in CAPS. Match each wanted ad to the cell organelle that should be getting that job. Write the name of the job, followed by the name of the organelle Are you permeable? Are you all about homeostasis? GUARD needed to regulate transport of water, ...

Science

Kawaii~chan needs help with Science can someone help kawaii~chan 1 What happens in the phloem A Water moves up from roots B Food moves down from leaves C Food moves up from roots D Water moves down to roots

AP Biology! DESPERATE!! HELP! due tom!

describe atleast 4 ways an ectothermic organism's behavior helps it regulate its temperature.. this is from lab 11. i don't quite understand what its asking. like name 4 specific examples: ie: lying in the sun when cold, going in the shade when hot.. [i can only think of those...

Biology

1. Are the third-order heterotrophs consumed by gungal decomposers? My guess:Yes? 2. Which of the following fixes atmospheric N2 (nitrogen gas)? A. photosynthesis B. symbiotic bacterianon the roots of legumes C. uv light D. decay organisms E. autotrophs My guess: B? 3. Which ...

Biology--Urgent

Need help with these: a) What is a major structural advantage that eukaryotic cells have over prokaryotic cells? Why is this so important? b) Identify one similar and one different way each type of cell uses flagella c)The cytoskeleton of eukaryotes serves many functions. One ...

Biology

11. You are searching for a gene that traces its ancestry to an ancient gene in fish. Evolutionarily older fish, like the coelacanth, have only one copy of this gene. More modern fish, like a three-spine stickleback, have three. Modern humans and mammals have no homologous ...

english/biology

I was wondering if you can check to see if these are good predications, hypothesis and questions. Like does the grammar makes and stuff. Thank you Hypothesis : Temperature as one, environmental factor will affect the physiological functioning of the small organism Daphnia. ...

Biology

The maltose molecule can be broken down into two individual glucose molecules with the help of an enzyme produced within a cell. Which of the following changes is most likely to slow down this reaction? Adding more maltose molecules Increasing the volume of the cell Adding ...

Biology

I need help making a food web for the following: Forest-field ecosystem, Corn,Decomposers, Deer,Fox,Grass,Mouse, Owl,Rabbit, Seed-eating bird,Snake, Squirrel,Tree I also need help on another one: Saltwater Marsh Ecosystem, Algae, Crustacean, Decomposers, Egret, Grasshopper, ...

Biology

I need help with a couple of questions. I have included what I think the answers are. Could you let me know how I did? 1- A woman who recently came home from a tropical vacation now has abdominal pain and diarrhea. Her blood test results show an elevated eosinophil level. ...

Math

The National Association for Women in Science asked recent high school grads if they had taken certain science classes. Of those surveyed, 90 said they had taken physics, 138 said they had taken chemistry and 45 said they had taken both. Thirty-two said they had taken neither...

Science

A science teacher was curious to see whether offering money for good grades would increase student peformance on a test. The teacher offered half of the students in the class $5.00 if they got an A on their next test. The other half of the class was not offered any money. What...

Science

A science teacher was curious to see whether offering money for good grades would increase student performance on a test. The teacher offered half of the students in the class $5.00 if they got an A on their next test. The other half of the class was not offered any money. ...

Gr.11 Biology

In humans, muscular dystrophy is a condition in which the muscles waste away during early life, resulting in death in the early teens. It is due to recessive sec-linked gene. A certain couple have 5 children- 3 boys, ages one, three and ten; and 2 girls, ages five and seven. ...

Science

A science teacher was curious to see whether offering money for good grades would increase student performance on a test. The teacher offered half the students in the class $5.00 if they got an A on their next test. The other half of the class was not offered any money. What ...

science

can some explain to me how birth, death and migration rates affect the population? I have read but really do not understand it? the factors that can affect these rates i am assuming is urbanization cost of raising and educating children educational and employment opportunities...

Physical Science

1. Which equation correctly shows beta decay? (A) 210/82 Pb -> 209/81 Tl + 0/-1 e + y (B) 210/82 Pb -> 209/83 Bi + 0/-1 e + y (C) 210/82 Pb -> 210/83 Tl + 0/-1 e + y (D) 210/82 Pb -> 210/83 Bi + y (E) 210/82 Pb -> 210/83 Bi + 0/-1 e + y 2. The half-life if radon...

Biology

In conventional human radiological imaging (e.g., MRI, PET, CT) of the head, the axial plane is synonymous with the horizontal plane. Which of the following statements about this plane is most accurate? The axial plane is an axis of symmetry in the forebrain. The long axis of ...

Molecular Biology

You are working in a lab that has recently discovered a new viral protein. Describe in detail how you could generate a polyclonal antibody preparation against this protein. Include a full description of production and purification. Describe in detail an experiment that could ...

biology Please Help

The probability that their baby will be a carrier of the gene for PKU is (A) __________. The probability that their baby will be affected by PKU is (B) __________. If both genotypes were Pp, the probability that their baby would be affected by PKU would be (C) _________. my ...

Biology

I just need somone kind enough to confirm my answers. 1. Membrane bound organelles are also referred to as ... A) vesicles B) channels C) integral proteins D) a and b I think the probable answer is A. 2. Plasmolysis of human red blood cells would occur if the cell were in .. ...

Human Biology

For a portion of Junior year next year, we're supposed to build a human skeleton out of anything we can find. So most people build them out of styrofoam or clay. Do you think building a skeleton out of twigs would be creative and/or relatively easy? Someone did a really ...

Biology

Reptiles and mammals both have a four chambered heart yet reptiles utilize the sun to monitor body temperature while mammals control body temperature internally. What does this mean about the separation of oxygenated (blood that already picked up oxygen from the lungs) and ...

Biology

In detail can someone please explain to me how cooking eggs makes them safe to eat in connection with enzymes Thank you I understand that enzymes are killed because of the heat as it is a factor in destroying the enzymes activity but how does this explain why its safe to eat...

Biology

There are at least 4 different ways that humans have genetic variation, a. Using one of these four ideas explain why you do not look like another person in this room. b. To continue further with this thought use another one of the genetic variation ideas and explain why you ...

Biology

Hey guys! I'm thinking that B is the correct answer, but doesn't the DNA that is going to be inserted into the vector complementary to the mRNA strand? Would appreciate some help! Which one of the following is the biggest challenge that must be overcome in order to get a ...

Biology

I'm having trouble answering this: The average size of a large fish that humans use for food has been decreasing over time, Exp-lain how, exactly, this happens - be sure to discuss genes, proteins, traits, and selection pressure. This is all I can answer :( The large fish are ...

Civics

In the case The Senate Of Tennessee V. John Thomas Scopes, high school biology teacher John Scopes was accused of teaching content that violated a Tennessee law that stopped public school teachers from teaching evolution. Scopes voted this law , but felt his right to free ...

Biology

In 1665, Robert Hooke, an English scientist, reported an interesting observation while looking through his microscope at a cork, "I took a good clear piece of cork, and with a penknife sharpened as keen as a razor, I cut a piece of it off, then examining it with a microscope, ...

BIOLOGY( please help me)

Oxidized (blue) DPIP becomes colorless when it is reduced – that is, when it receives electrons. A diagram of the photosynthetic light reaction shows that water molecules are the source of these electrons. How is it that the DPIP was only able to receive reducing electrons ...

biology

What are coupled reactions? Describe the interactions between enzyme, substrate, active site and the induced fit model Explain how changes in temperature, and pH affect the function of enzymes Recognize the structure of ATP, and be able to identify some key functions of ATP. ...

biology

What chemical fuel powers all cell activities? Since this is not my area of expertise, I searched Google under the key words "cell metabolism chemical" to get these possible sources: http://www.answers.com/topic/cell-metabolism I hope this helps. Thanks for asking.

Biology

Consider the following events: 1) The protein has sugar added to become a glycoprotein. 2) The protein is in the plasma membrane with the sugar modification facing outside the cell. 3) A membrane protein is synthesized in the rough endoplasmic reticulum. 4) The glycoprotein is...

biology help please

Compare the pig brain to drawings of a human brain, a fish brain, and a bird brain. Can you see how the pig’s anatomy parallels human anatomy? What can you conclude about our relation to animals like pigs? Like birds? Like fish? I have not been able to find anything on birds...

history..maths litercy..geography..life science..isizulu..life orentation..

im doing grade 11 and next year im doing grade12 so my question is that i want to be a boilermaker and i want to work in sasol so i don't know if this sbject is right to do boilermaker if you have any information please contact me on 0736124260 or 0739615308 in june exam my ...

Biology

For any given age and body surface area, men have a greater MVV than women. Give one anatomic or physiologic reason why. Is it because men tend to be more stronger and athletic than women, thus allowing respiratory muscles to be stronger Men are larger than women, thus more ...

biology

Given below is the sequence of the mRNA ready for Translation" 5' - AUG CUA UAC CUC CUU UAU CUG UGA - 3' a) what is the first codon technically known as and which amino acid does it code for? b) how many amino acid residues will make the polypeptide chain corresponding to this...

Biology/Chemistry

During a “perm”, disulfide bonds can be broken and reformed using which treatments, respectively? I think the answer is a. but can someone confirm this? a. an oxidizing agent followed by a reducing agent b. a reducing agent followed by the use of water c. an oxidizing ...

biology

If a person with Down syndrome marries a person without Down syndrome, is it possible for their child not to have Down syndrome? I assume that there is a 50% chance that they could have a child that will not have down syndrome. Is this correct?

Biology

What would happen if your liver stopped producing sufficient quantities of bile salts? A. You would develop gallstones B.Your small intestine would have trouble breaking up fat globules. C. Your small intestine would have trouble neutralizing acid from your stomach. D. You ...

molecular biology

How did O'Donnell show that the sliding clamp complex actually slides along dsDNA providing processivity to DNA Pol III? I think he took dna, a primer, and one radioactive dNTPs, added Pol III that was isolated, ran a gel, and the conclusion was that it was processive because ...

Biology

Which is one way that a freshwater wetland differs from a lake or pond? A. water flows in a lake or pond but never flows in a wetland. B. Wetlands are nesting areas for birds, but lakes and ponds are not. C. Water does not always cover a wetland as it does a lake or pond. D. ...

Biology

How do you balance equations? http://www.chemistry.ohio-state.edu/betha/nealChemBal/ The reactants are written on the left and the products on the right.An arrow pointing towards the product is inserted between the reactant and product.The number of molecules have to be the ...

college biology

Consider the following events: 1) The protein has sugar added to become a glycoprotein. 2) The protein is in the plasma membrane with the sugar modification facing outside the cell. 3) A membrane protein is synthesized in the rough endoplasmic reticulum. 4) The glycoprotein is...

Biology

What is a molecular clock? A)a tool scientists use to date fossils B)a tool scientists use to determine how many mutations a species accumulates over time C)a tool scientists use to determine how long two species have been evolving independently D)a tool scientists use to ...

English

Here is the second part of the school description I need to translate. Some words are unclear and the sentences are too wordy. I need your help to improve them. 1) third branch includes the study of two foreign languages: English and French and addresses to all those who wish ...

biology

an investigation was done to determine the role of petals in insect pollination in apple flowers.when flowers are self pollinated,the tubes grow a little into the stigma and style and fertilization does not take place.(1)10 flowers with petals and 10 flowers without petals ...

Biology

Why do elderly people experience cold intolerance when they in fact have increased adipose tissue and more lipid storing area? I mean I know temperatures of the body is regulated by the hypothalamus along with the thyroid and all .. but what i always thought a person with more...

Science

I did A Lab in science where I had a Small hotwheels car and started and 6 books and made a ramp. I then timed how long it took the car to go 2 meters from the ramp. after each trial I added one more book to make the slope higher. The car stayed the same and the higher the ...

Biology

Recent studies of children and juveniles of other species show that when their eyeballs are actively growing, frequent exposure to blurred images can permanently alter the shape of the eyeball. The blurring results when objects in the field of view are at various distances and...

Biology-Is my answer correct

Which of the following must occur for a mismatch error to be repaired? Which is the best answer, I think it's A, am I right? A)Damaged DNA must be identified by DNA repair proteins B)The sequence of nucelotides in the damaged DNA sequence must guide the synthesis of the ...

ap biology

i need help with this quewstion but i cannot post the graph i some one could help if you would like to give me your email and i will send it there. it would be great please i really need help * how do (1) temperature and (2) pH affect the activity of this enzyme? include a ...

12th grade Biology

Consider the following animals: Earthworm Flatworm. Frog. Jellyfish. Lamprey. Tuna. Create a table of fundamental traits for these six animals as a basis for building a cladogram. Use traits that are either present or absent in a given organism. Use the jellyfish as an ...

Biology

10. The mouth, small intestine, and kidneys have functions that involve the a. digestion of food, synthesis of vitamins, and filtering of the blood b. intake, digestion, absorption, and elimination of food and wastes c. secretion of bile, digestion of food, and reabsorption of...

Biology Help!!!

Describe the relationship between ATP and ADP and the importance of this relationship within a cell. My answer: ATP stands for Adenosine Tri-Phosphate, and is the energy used by an organism in its daily operations. It consists of an adenosine molecule and three inorganic ...

Biology

1.,you drink salty beverages (clams to) and eat pretzels all day. At the end of the day your weight is way up. Why? I think it has something to do with the fact that our cells shrink in size ? I have no clue? 2. Athletes drink Gatorade . Why? Given the description, tell the ...

psy - please revised

what are some of the ways that psychologists attempt to explain human behavior? One of the major debates within the field of Psychology is the degree to wich nature versus nurture shapes human behaviors and traits. What comprises our nature? How would you define nurture? How ...

science

how did ice get its name?

science

what is a sample of a gas

science

what are the 5 branches of physics?

science

what are the subunits of starch

science

what are the parts of the cells

science

what is cell made up of?

science

what is 7 blue, 3 times???

Science

What do you mean by Resource

science

whats correct 1 L = dm^3 or 1 L = cm^3 ?

science

62m in centimeter

Science

What are examples of insolubles?

SCIENCE

WHAT IS A SIMPLE PLANT?

Science

What is waste management?

Science

What are societal laws?

Science

what does deposition mean?

science

what is the opposite of a stalactite

Science

If the mass is 5 kg, what is the weight???

SCIENCE

HOW MANY SATELLITE ARE THERE IN SPACE AND WHAT ARE THEY FOR

science

who invinted the v2 rocket

Science

What do waves transfer?

Science

How do balance an equation?

Science

I want to know why the rain is cold.

science

Where does calcite come from?

science

what is a changed variable?

Science

Where is Feldspar found?

science

what is the size of a x-rays?

science

how do plants reproduce?

science

were can i go to get information on leopards

Science

What does chromatin do in a cell

science

what is cellular respiration

science

what is biosphere 2? what do they research there?

science

How do you measure velocity???????

science

what are 2 types of weathering?

science

what is a chemical change?

science

How can I convert 50 kg to pounds?

science

What is the cell theory

science

how are faults classfied

Science

Where is lantana located?

science

explain an abstract

Science

Help! What is s reflected ray

Pages

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12
  13. 13
  14. 14
  15. 15
  16. 16
  17. 17
  18. 18
  19. 19
  20. 20
  21. 21
  22. 22
  23. 23
  24. 24
  25. 25
  26. 26
  27. 27
  28. 28
  29. 29
  30. 30
  31. 31
  32. 32
  33. 33
  34. 34
  35. 35
  36. 36
  37. 37
  38. 38
  39. 39
  40. 40
  41. 41
  42. 42
  43. 43
  44. 44
  45. 45
  46. 46
  47. 47
  48. 48
  49. 49
  50. 50
  51. 51
  52. 52
  53. 53
  54. 54
  55. 55
  56. 56
  57. 57
  58. 58
  59. 59
  60. 60
  61. 61
  62. 62
  63. 63
  64. 64
  65. 65
  66. 66
  67. 67
  68. 68
  69. 69
  70. 70
  71. 71
  72. 72
  73. 73
  74. 74
  75. 75
  76. 76
  77. 77
  78. 78
  79. 79
  80. 80
  81. 81
  82. 82
  83. 83
  84. 84
  85. 85
  86. 86
  87. 87
  88. 88
  89. 89
  90. 90
  91. 91
  92. 92
  93. 93
  94. 94
  95. 95
  96. 96
  97. 97
  98. 98
  99. 99
  100. 100