Homework Help: Science: Biology

Recent Homework Questions About Biology

AP Biology
If plants are grown for several days in an atmosphere containing 14CO2 in place of 12CO2, one would expect to find: very little radioactivity in the growing leaves large amounts of radioactive water released from the stomates a large increase in 14C in the starch stored in the...

Biology
What is the embryo having two embryonic leaves called?

Biology
Is this the correct order for what appears on earth first? Fish, Amphibians, Reptiles, Dinosaurs, Birds.

Biology
is this the correct order for what appears first: Dinosaurs, Reptiles, Amphibians, Birds, Fish

Biology
Name and briefly describe two traits that amphibians and reptiles share that are not common to all vertebrates

Biology
In a mycorrhizal relationship, what benefit does the plant get from the fungus? a. an energy source b. aid in seed dispersal c. products of photosynthesis d. aid in the absorption of water and minerals<-- (My Answer) Please help me, i'm having trouble with this one and i ...

Hardy Weinberg: Biology
Can someone explain how to answer these questions given the different variables given? I have a test soon. Dr. Martin Brenner and his team have built a space ship which can travel at the speed of light (186,000 miles per second) and travel to parallel dimensions. Dr. Brenner ...

Biology-ASAP
In a reaction you use 400 ul of 12mM B-galactosidase. Add 2.3 ml of buffer and 0.3ml of ONPG to a cuvette. what is the final concentration of the cuvette? Answer below to one decimal place.

Physic, maths, chemistry, biology
A body of mass 0.1kg is moving on circular path of diameter 1m at the rate of 10 revolution per 31.4sec, then then centripetal force acting on body is A) 0.2N B) 0.4N C)2N D) 4N

Biology
in guinea pigs, the allele for a rough coat (R) is dominant over the allele for smooth coat (r). Two guina pigs that are heterozygous for a rough coat, mate and produce offspring. What is the probability that the offspring will have a smooth coat?

Biology - Genetics
What would be the molar concentration of DNA in a normal human cell?

Biology
Which of the following best explains the absence of fossil evidence from before the Cambrian at the time of Darwin? a) There were no animals b) The animals were very small c) The animals were soft and not likely to fossilize d) The animals were not in areas suitable for ...

Biology
Which molecule, or process, should be targeted by the new anti-cancer drugs under development to treat this type of leukemia? Type is T-Cell-Prolymphocytic-Leukema (T-PLL) Please help. Thank you

Biology
Which molecule, or process, should be targeted by the new anti-cancer drugs under development to treat this type of leukemia? Type is T-Cell-Prolymphocytic-Leukema (T-PLL) Please help. Thank you

biology
if an owl regurgitates an average of 2 pellets a day and the average number of prey in one pellet is 4, how many rodents could be eliminated in one year? (assume there are 365 days a year)

Biology
1. A long-term relationship in which both species benefit is known as parasitism. * A. True B. False*** 2. The relationship of algae living in the fur of a 3-toed sloth and helping to camouflage the sloth, is called * A. symbiosis B. mutualism C. commensalism*** D. parasitism ...

Biology
Which statement is NOT true about the proteins in the plasma membrane? -Proteins may be attached to the inner surface of the plasma membrane. -The hydrophobic portion of a protein is embedded within the membrane. -Some peripheral proteins are connected to cytoskeletal ...

Biology
A wolf needs to eat three rabbits a day to survive. A rabbit needs to eat 15 berries a day to survive. How many berries are needed to support a wolf for a day?

Biology
Which phrase does NOT describe one of the functions of proteins of the plasma membrane? -forming a channel through the membrane -initiating the replication of the genetic material (CORRECT) -binding to a substance to carry it through the membrane -acting as a pump to move ions...

biology
identify another invertebrate chordate other than the hagfish?

Biology
What is a Notochord made out of?

Biology
One kind of fish, the hagfish, is considered an invertebrate by scientists. Why is this fish an invertebrate whereas all other fish are vertebrates?

Biology
Which chordate structures are lost when a larval tunicate develops into the adult form?

Biology
What is the difference between water purification and water treatment? Can you explain it in an easier way to understand? Thank you

Biology
Traits like human height and skin color shows a wide range of phenotype, as opposed to just two of three. From the standpoints of genes and alleles, explain why is this so.

biology
would you consider that eukaryotic cells got rid of their cell wall to benefit as a heterotroph? They must of had a cell wall to begin with because all cells come from prokaryotic cells.

biology
did cells loose their cell wall due to evolution or did they never have a cell wall to begin with? pls explain

Biology
why does boiling the water removes the bacteria?

Biology
Glycolysis produces ATP through what process?

Biology
Glycolysis produces ATP through what process?

Biology
Suppose a mutation occurs in the gene for a particular aminoacyl-tRNA synthetase. The mutation changes which amino acid is recognized, without affecting which tRNA molecule is recognized. How is this likely to affect protein synthesis?Find all that apply. It will change the ...

biology
Which is a form of active transport? A. Proteins open up channels in the cell membrane. B. Proteins push molecules through the cell membrane. C. Proteins create openings on another side of the cell membrane. D. Proteins enter and exit the cell freely. i have no idea which one...

biology
What means pseudopodia

cell biology
How do the daughter cells at the end of mitosis and cytokinesis compare with their parent cell when it was at the end of G2 of the cell cycle? a. The daughter cells have half the numbers of chromosomes and half the amount of DNA. b. The daughter cells have the same numbers of...

Biology
What molecules carry the energy derived from breaking down glucose? Where are these molecules made? Now, I'm thinking ATP and NADH but I'm not sure. Both these molecules are made outside the mitochondria in the cytoplasm.

A - G requirements
I mest up real bad my freshmen year, I took general sciene which doesn't help me get into university. Now I'm a sophomore and I just started taking Biology, how embarassing. Any advice on how I could catch up? Also, does anyone know if health counts for the A-G? I took health ...

biology
how many copies of genome are present in a diploid cell in G1 phase?

Biology
Examine the experiments that Griffith performed using rough and smooth pneumococcus bacteria. what type of material is being injected into the mouse And what effect it has on the mouse. (There is a picture from left to right: Rough strain (nonvirulent) = mouse survives Smooth ...

Biology
Fur length in the fuzzy wuzzy can be short, long or short-long. Short-long is marked by a pattern of alternating short and long strands of fur over the surface of the fuzzy wuzzy. Two short fuzzy wuzzies mate and produce all short fuzzy wuzzies. Two long fuzzy wuzzies mate and...

Biology
All Crayolians have ten hands with two fingers on each hand. In addition, all the fingers on each Crayolian are the same color, either red, white or pink. A pink-handed Crayolian mates with a white-handed Crayolian. Their offspring are 50% pink handed and 50% white handed. ...

Biology
The scenario is imaginary. A blue alien and a green alien mate and produce 1,000 offspring that are all blue. Another alien couple who share the same genotyope and phenotype as the first couple also mate and produce 1,000 offspring, all of which are blue. Males and females ...

Biology
A stock protein sample that has a concentration of 250.0mg/ml. You need to dilute this sample to 20.0 mg/ml in buffer. The final volume of the diluted solution is 5.0ml. how much of the stock protein solution and buffer are required to achieve this? Answer with appropriate sig...

Biology
What are the possible allele combinations that could occur in a gamete produced by an individual who is heterozygous for the traits of flower color and height?

science biology quick question
When applying the process of science, which is tested? A question B a result C an observation D a prediction E a hypothesis I know is D or E can you help me understand why D or E is the better choice?

Biology
how is variation created by independent assortment?

biology
Saltwater is a _____ environment for a cell because the concentration of salt is greater outside the cell than inside it. A. hypertonic B. hypotonic C. isotonic D. dissolved

biology
Difference between the reproduction of sweet potato and potato.

Biology
Can someone please explain what this article isn't talking about I couldn't post the link but you can find it online "The relationship between the volume of antimicrobial consumption in human communities and the frequency of resistance" Please don't just post a link to the ...

Biology
Can someone please explain what this article isn't talking about I couldn't post the link but you can find it online "The relationship between the volume of antimicrobial consumption in human communities and the frequency of resistance"

Biology
The _ has an eyespot a. Diatom b. Dinoflagellate c. Euglena

biology
WHO WOULD WRITE A SUMMARY FOR ME :: THIS IS THE TITLE OF THE ARTICLE : YOU CAN FIND IT ONLINE "The relationship between the volume of antimicrobial consumption in human communities and the frequency of resistance"

biology
Can someone please write me a summary about this article. Its hard to understand it ! : " The relationship between the volume of antimicrobial consumption in human communities and the frequency of resistance." thank you so much

Biology
Can you give me a food chain of cow

Biology
Can you give me a food chain of cow

Biology
Can you please give me a food chain of it?

biology
1. What is the major component of blood plasma? a. Nutrients b. Ions c. Water d. Gases 2. How many layers of phospholipids does the cell membrane contain? a. 1 b. 2 c. 4 d. 3 3. Which substance stores polysaccharides in plants? a. Sucrose b. Glycogen c. Glucose d. Cellulose 4...

Biology
explain the process of water, mineral, and sucrose transport through a plant: ATP Cohesion Phloem Sink

Biology
(How would I go about doing this?) Design an experiment that tests the effect of different concentrations of carbon dioxide on the rate of photosynthesis. 1. A specific question easily measurable and clearly stated 2. A hypothesis that is clearly stated and contains measurable...

Biology
what promote cellular respiration in yeast cell? what condition appear to be detrimental to cellular respiration in yeast cell

Biology
Why can viruses of the family of the Poxviridae be genetically modified more easily than viruses of most other viral families? A. Because their genome is smaller. B. Because their genome is made of DNA. C. Because their genome mutates more slowly. D. Because their genomes have...

Biology
what happens in the stomach at a molecular level?

Biology
The pH of stomach acid is about 1.0. • What effects does this have on digestion? • What type of nutrients is broken down in the stomach, and what type of reaction is this?

Biology
Why are plants considered as producers? A. Plants produce fruits that can be eaten by animals B. Plants convert energy from the Sun into chemical energy in the form of glucose (food).

Biology
A farmer wants to propagate a good variety of a crop in a way which maintained all its desirable traits. Which of the following methods should be used? A. Self Pollination B. Vegetative propagation C. Growing seeds produced from this variety D. Cross-pollinating this crop with...

Biology
A farmer grew only one type of onion. All of the onion plants died from the same disease. What can be said of this onion plant population. A. Only few plants were resistant to the disease B. All of the onion plants were resistant to the disease. C. The onion plants were ...

Biology matriculation
What is the expected frequency for a person having tongue rolling ability and attached earlobe???

Biology
Plz i need help. Plants are green because the pigments in plants reflect green light. Blue and red light give them the most energy to power photosynthesis. You are conducting an experiment to see how different colors of light affect the growth of plants. You place three small ...

Biology
1. Objects viewed from the left fall on which side of the eyes retina? 2. From the retina following the optic nerve to the appropriate area of the brain for interpretation, for example A. Which side of the brain interprets objects viewed from the left side?

biology
In a pre-lab for nutrient food testing , I was assigned to answer these questions, but I have no idea what they are talking about. And no, we have not discusses the answers in class. Here are the questions: Answer the following questions: 1. What is a positive standard? 2. ...

Biology Asap!
1. A hypothesis and a theory are related because A.a Theory is always used to develop a hypothesis B.They are both developed in the absence of observations. C. the data collected when a hypothesis is tested can support a theory. D. an experiment is done before the formation of...

Biology
HELP PLEASE!!!! Explain how sexual reproduction increases genetic diversity in many species of plants and animals, make sure to include the importance and function of gametes.

Biology
A chemical known as a fertex affects external fertilization of sea urchin eggs. An experiment was set up using three tanks to investigate the effect of fertex. Each tank had a different concentration of fertex: 1%, 2%, and 3%. Ten sea urchin eggs and 2mL of sea urchin sperm ...

Biology
A chemical known as a fertex affects external fertilization of sea urchin eggs. An experiment was set up using three tanks to investigate the effect of fertex. Each tank had a different concentration of fertex: 1%, 2%, and 3%. Ten sea urchin eggs and 2mL of sea urchin sperm ...

biology
Answers for Biology A unit one test 26 questions

Biology
How can the genetics of a human be studied?

biology
Why do you think the protocol does not say to dissolve compounds directly in 1 liter of water?

Biology
When dental work is to be done, the gums and nerves in the teeth are anethetized by injection of lidocaine. This drug blocks Na+ channels in the membrane of the sensory cells. This drug is an effective local anesthetic because the A. Sensory cell membrane do not repolarize ...

Biology
How many NADH and FADH2 Molecules are produced in the Krebs cycle for each glucose molecule? My answer: 2 This is correct ?

Biology
The reproductive system of a male mammal is made up of... A. Claspers, prostrate gland, sperm duct and vas deference. B. Festis, prostrate gland, sperm duct and vas deferens. C. Oviduct, urethra, testis, and sperm duct. D. Testis, uterus, prostrate gland and sperm duct.

Science (Biology)
The disease bullous pemphigoid results in the destruction of proteins within the basement membrane that hold the epidermis and dermis together. How would this likely affect the epidermis?

Biology
Why do we need grass for hay infusion?

Biology
Why do scientists observe microorganisms?

Biology
Which of the following best describes the relationship between science and society? A. Science influences society but society does not influence science.** B. Society influences science but science does not influence society. C. Science influences society and society ...

Biology
How is Paramecium related to Protozoa?

Biology
What is a protein that transports ions across the plasma membrane without requiring energy or changing shape?

Biology
What are the roles of hydrogen peroxide, oxygen, hydrogen, and catalase in the following chemical reaction? catalase 2H2O2 > O2 + 2H2O A. Catalase is an enzyme, O2 and H2O are substrates, and H2O2 is a reactant. B. Catalase is a substrate, O2 and H2O are substrates, and ...

Language Arts
1. Which of the following would most likely appear in a feature article, but not in a news article, about Hurricane Katrina? (1 point) A) a map showing meteorological data about the storm, such as total rainfall and top wind speeds B) a sidebar containing a brief interview ...

Biology
Is opportunistic bacteria a bad bacteria?

Biology
What are pathogenic and opportunistic bacteria?

Biology
Can someone check my answers please? 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 represents a correct sequence of levels within the ...

English
I wrote this sentences. Could you check them. Thanks 1. If you were interested, you could take another course. 2. If I were you, I’d study Norse tales. 3. If he really wanted to go into science, he would take biology and chemistry. 4. I wouldn’t have suggested he take ...

Biology
Is a cell wall and nucleus organelles?

Biology
Colour blindness is more likely to occur in males than females because?

Biology
YyRR is crossed with yyRR. The progeny will be?

Biology
The building blocks of protien are called

Biology
1)why dose h20 have such attractive forces? 2) H2o effortless ability to _____ ______ with other matter - what two answers would complete this statement?

Biology
Why is it important for hydrogen bonds to be weak? -i already tried googling it but im still confused

Biology
why does h2o have such attractive forces

Biology
|Question| 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 ...

Biology
Which of the following is NOT a function of a vacuole? a) packaging of materials *** b) transport of materials c) storage of materials d) breakdown of materials

  1. Pages:
  2. 1
  3. 2
  4. 3
  5. 4
  6. 5
  7. 6
  8. 7
  9. 8
  10. 9
  11. 10
  12. 11
  13. 12
  14. 13
  15. 14
  16. 15
  17. Next>>

Homework Help: Science