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Homework Help: Science: Biology

Recent Homework Questions About Biology

biology
What is the different between theory of plate tectonics, continental, drift, and sea- floor spreading?

Are there any Biology teachers that could help me?
Are there any Biology teachers that could check my answers for me?

Biology
Which of the following is true for the nucleus? A) It has no definite structure B) It is surrounded by membrane C) It is the eukaryotic cell's energy-producing organelle D) It is closely associated with the Golgi apparatus. E) It is always bluish purple in colour

Biology
How do you determine how the age of a specimen where there is only 1/2 of the original Carbon14 isotope left? What if 1/2 of the original isotope was left? I cannot show my work because I do not know how to figure this out.

Biology
Two purple flowers (Bb) are bred with each other in the same garden. What are the odds that red (BB) and blue (bb) flowers will occur in the second generation? A. 50% red flowers; 50% blue flowers B. 25% red flowers; 75% blue flowers C. 75% red flowers; 25% blue flowers D. 25...

Biology
Which of the following structures is derived from the embryonic prosencephalon (forebrain)?

Biology
How do genes determine the traist of an organism explain in details

biology
Looking through a microscope,I saw a Eukaryotic cell. How could I conclude if the cell is a plant or animal cell?

Biology/Chemistry
Does anybody know how much 1 mole of acid should be diluted in order to mimic the pH of acid rain? I also need sources, but haven't been successful in any of my searches so far, thanks.

biology help please :)
Olga's teacher asked her to design an experiment using freshwater plants, fish bowls, tap water, and salt. After determining an approach, Olga placed a plant in each of three fish bowls. Then, she filled one bowl with fresh water, one bowl with dilute salt water, and one bowl ...

Science:Biology
What are some unusual characteristics of food webs in agroecosystems?

7th grade math
A biology class has 28 students. Four of the students transferred out to take chemistry. Find the percent of change in the number of students in the biology class. I got 86 percent change is that right? Thank you...My mom says it's 14.3 %

Biology
The street lights in many cities contain bulbs with sodium vapor. When electrical energy is pass through the bulb, a brilliant yellow light is given off. What is happening to the sodium atoms to cause this? Explain. How would magnesium and chlorine interact? Please help. Thank...

Biology
When inserting a gene, a gene for antibiotic resistance were also added to the plasmid. Why is this done?

Biology
List down 20 acids with their property and identify them by saying polar or non polar and acidic charge or basic charge

Biology
3. One different between a point mutation and a chromosomal mutation is that A. A point mutation affects the DNA of more genes than a chromosomal mutation B. A point mutation can involve a insertion or deletion, but cannot result in a frameshift C. A chromosomal mutation can ...

biology help please :)
Two chemists measure the densities of an unknown metal sample. They both find that the sample has a density of 8.94 g/mL. Chemist A uses a chart and says that the metal must be copper since the density of copper is exactly 8.94 g/mL. Chemist B says that the metal could be a ...

Biology
Explain the ramifications to the process of transcription if the following occurs: A) The termination sequence of a gene is removed

biology
what are the main similarties and differences between the three main food groups,carbohydrate,proteins and fats?

Biology :)
Consider the following situation. A cell is in a solution that contains dissolved oxygen. As the cell uses oxygen for respiration, a. oxygen will be carried across the cell membrane by special transport molecules. b. oxygen will naturally diffuse out of the cell. c. no ...

1 Biology question please :)
Osmosis is the process in which _______ diffuses across a cell membrane. a. water b. energy c. protein d. oxygen I think its a

Biology
3'-GGCACTCGCATAATATTCGCCATGGCT -5' In the DNA sequence above, how do i identify the promoter region..

English
If you are in line early, youll be sure to get the best tickets. A. Compound-complex B. complex C. Compound D. SImple 2. Heather is in charge of decorations, and Enrique is bringing snacks. A. simple B. Compound C. Complex D. Compound-complex 3. My two dogs are named Hannah ...

biology
which ion would cease being taken up if the plant is treated with a metabolic poison that inhabits ATP synthesis ? give a reason

Biology
Describe the characteristics of living things and provide examples to illustrate your description. I have all my characteristics but I need one example. Here is my characteristic: Living things grow

Biology
Given the inefficiency of two of the pathways shown in figure 9-4, what advantage could there be to using these pathways to produce energy?

english
Through my degree in Biology I became experienced with statistical analysis as well as writing literature reviews. Are there any grammar errors in that sentence?

Biology
Rank the following from most acidic to least acidic. sample pH bleach 12.5 coffee 4.2 rainwater 5.4 soap 10.1 My answer: Bleach, Soap, Rainwater,Coffee Is that right?

Biology
what can you say about the amount of hydrogen ions relative tot he amount of hydroxide ions in a solution that has a pH of 2?

Biology
What effects does epinphrine have on the excretory and endocrine systems.. i cant find any sites to help

English (Cover Letter)
I suppose that I need to place a comma after "statistics", since the first phrase seems like it is a dependent clause. Am I right? "Through my Bachelor’s degrees in Biology and Statistics from XYZ University I developed a desire to work in a research laboratory."

biology
Which characteristic do glycogen and starch share?

Biology
How do changes in DNA affect changes in adaptations? (I am of the assumption that changes in DNA spur the adaptations that take place--at least those through genetic mutation--and thus the adaptations that are most beneficial prevail. May I please have some clarification? ...

Biology
What is the end result of the cell cycle and mitosis? Are daughter cells identical

Biology
As you go up the energy pyramid __% of the energy is loss at each level and only __% remainds. In what form is this energy lost as? ___ First blank 10%

Biology
The endocrine system a. affects only the reproductive system b. releases hormones into the bloodstream c. competes with the nervous system d. is made up primarily of glands with ducts I chose d. Is this correct? I want to make sure.

Biology
3grams of ammonium chloride has been added to 20mL of water. The initial temperature of the solutionis 18.0 degrees, and once the ammonium is added to the water, the temperature declines to 11 degrees. Given the following information, calculate the enthalpy of solution per ...

english
1.Which literary device is used in the following sentence? According to that report, these special materials can bend "radar light, or other waves around an object like water flowing around a smooth rock in a stream." A.simile B.metaphor C.alliteration D.personification 2....

Biology
As you go up the energy pyramid __% of the energy is loss at each level and only __% remainds. In what form is this energy lost as? ___ First blank 10% That's all I know

Biology
The wird diversity in biodiversity refers to what

Biology
What is the main subunit of DNA Nucleotides?

Biology
light energy is converted to chemical energy in the process of Photosynthesis? The process where plants transfer solar energy into chemical energy to make organic molecules (glucose) is known as Photosynthesis also>?

Biology
Mutualism Commensalism Predation Parasitism Name the relationship A tick on a dog PArasitism A lion eating a zebra Prdation A roundworm in a human intesteine Parasitism A fly living on the back of a rhino Commensalism A clown fish living in coral clown fish cleans coral and ...

Biology
What is the end result of the cell cycle and mitosis? Are daughter cells identical

Biology
A. Proteins B. Carbohydrates C. Lipids D. Nucleic Acids Fatty Acids C Made of Amino Acids A Another name for sugars B Starches belong to these B Help build muscles A Immediate source of energy B Long term source of energy C Has the most calories per gram B DNA and RNA D ...

Honors Biology
Elizabeth is married to John, and they have four children. Elizabeth has a straight nose (recessive) and is able to roll her tongue (dominant). John is also able to roll his tongue, but he has a convex (Roman) nose (dominant). Of their four children, Ellen is just like her ...

Biology
What is chromatin and what does it turn into and how does it arrange itself? Chromatin forms chromosomes during cell division and consists of DNA RNA and proteins. It turns into separate structurs called chromosomes. Idk how it arranges itself

Biology (Check, Please!)
Describe why an r-strategist might be better suited for an unpredictable environment than a K-strategist is. A: An r-strategist might be better suited for an unpredictable environment than a K-strategist because they grow exponentially when environmental conditions allow them ...

Biology
Need help on the deciding which releases the most energy - fermentation or cellular respiration. I read fermentation is quicker but didn't know if it necessarily released the most. Thanks...

Biology (Please, Help Me!)
Please, help me! Differentiate a logistic growth pattern from an exponential growth pattern.

Biology (Check, Please!)
Describe why an r-strategist might be better suited for an unpredictable environment than a K-strategist is. A: An r-strategist might be better suited for an unpredictable environment than a K-strategist because they grow exponentially when environmental conditions allow them ...

Biology
summarize the reproductive cycle of pines

Biology
There is a loud crash in the room behind you and you jump. which part of your nervous system caused that response/ A. somatic nervous system? C. central nervous system D. sympathetic branch E. parasympathetic branch My teacher told me b was wrong so that's why it's missing why...

Biology
Are proteins, lipids, starch, sugar, calcium (ion), iron (ion), and chlorine (ion) in blood plasma? if they are explain its function in the body.

Biology
Results of an acrostic poem

Biology Check my work please
The Hershey-Chase experiment proved that DNA was the hereditary material because. a) radioactive phosphorus in viral proteins was shown not to enter bacterial cells b) radioactive phosphorus in viral DNA was shown to enter bacterial cells **** (my choice) c) radioactive sulfur...

biology check answers please
The Hershey-Chase experiment proved that DNA was the hereditary material because. a) radioactive phosphorus in viral proteins was shown not to enter bacterial cells b) radioactive phosphorus in viral DNA was shown to enter bacterial cells **** (my choice) c) radioactive sulfur...

Biology: Genetics
How do nucleotides and hydrogen bonds affect the structure of DNA? Maybe something like nucleotides make up DNA and hydrogen bonds hold the nitrogenous bases together? Can you help me explain?

Biology
What does your body need oxygen for A. It is necessary to aerate the brain C. Cells need it to produce the energy they need to function D. Air flow aids in blood flow within the blood vessels E. It produces hemoglobin, needed to carry carbon dioxide My teacher said letter b ...

biology
A category within biology that deals with the physical and chemical functions. A. Physiology B. Philosophy C. Psychology D. Physiopathology I believe it's B?

biology
Which of the following organelles is common to both prokaryotic and eukaryotic cells? Cytoskeleton Nucleus Nucleolus

Math (prob)
The probability of an outstanding student pass a biology test is 60%. If he takes three test, which are the experimental results for each test? My doubt is if I should consider the pass=.6 since the first event or when it mentions that the probability is .6 and he takes three ...

Math (prob)
The probability of an outstanding student pass a biology test is 60%. If he takes three test,which are the experimental results for each test? Please, help me to understand.

Biology
How can i design an experiment to determine which wavelengths of light provide the optimal energy for photosynthesis

Biology
How do you think increasing temperature would affect the rate of photosynthesis?

Math (prob)
The probability of an outstanding student pass a biology test is 60%. If he takes three test,which are the experimental results for each test? Please, help me to understand.

Biology
What can you say about the amount of hydrogen ions relative to the amount of hydroxide ions in a solution that has a pH of 2?

biology
A researcher is collecting qualitative data pertaining to social behaviors of deer at different times of the day. How will she most likely need to organize this data?

Biology
6. The gene for a large single eyeball is coded by the gene sequence TTCGCTGAA. Let’s go through transcription… DNA Strand- T-T-C-G-C-T-G-A-A mRNA Strand- _____________________________ 7. Now, let’s look at the gene for green body color, which is GGACTCTAG. With your ...

Biology Check answers
1.   Which of the following correctly describes the image below?    protein Molecule RNA Molecule amino Acid carboxylic Acid 2.   Glucose and fructose are monosaccharides that have the same chemical formula, C6H12O6. However, they do not react the same chemically...

Biology
.) CAGTGCAT _________ a) CGGTGTCT 2.) TGACTAAG _________ b) ACTGATTC 3.) GCCACAGA _________ c) GTCACGTA

Biology
Find the complimentary DNA sequence after going through DNA replication… 1) AAGTCCAT a) ACTGAATG 2) TGACTTAC b) CGGAGTTT 3) GCCTCAAA c) TTCAGGTA

Biology
What does synthesize mean in biology

Biology
how does a plant store the carbohydrates it produces in photosynthesis

Mathematics
A survey of 100 students produced the following statics: 32 study mathematics, 20 study physics, 45 study Biology, 15 study mathematics and biology, 7 study mathematics and physics, 10 study physics and Biology, 30 do not study any of the three subjects 1, Present the ...

biology
The purines in DNA are A. thymine and cytosine B. thymine and guanine C. adenine and guanine D. adenine and cytosine

Biology
What is the overall chemical formula for photosynthsis? 6Co2+6H2O--->C6H12O6+6O2 Where does the energy come from in photosynthesis? From Sunlight? What is the relationship between photosynthesis and respiration Photosynthesis makes the glucose that is used in cellular ...

why does photosynthesis require energy
biology

biology
how can hormones can be duplicated and transformed into medicine ?

biology
state one reason why the concentration of glucose in the blood decreases.

Biology
state one reason why the concentration of glucose in the blood increases.

biology
Describe in a short answer the history of the discovery of DNA

Biology
simulate a 24 hour day 12 hours of light 12 hours of dark how many snails and plants do you ened to keep a stable environment

Biology
Animals breathe in ___ and breathe out __ In sunlight plants take in ___ and realease __

Biology
What gas do plants give off in the light

Biology
Why don't we run out of the important gases that we need to stay alive?

Biology
Tay-Sachs disease is a hereditary disease that kills 1 in 360,000 individuals in the general population. Individuals homozygous for the defective allele have Tay-Sachs disease and die at an early age.Studies show that heterozygous individuals have a higher rate of survival ...

Biology
A recessive sex-linked allele (h) located on the X chromosome increases blood-clotting time, causing hemophilia. a. With the aid of a Punnet square explain how hemophilic offspring can be born to normal parents? My work: Hemophilic offspring could be born to normal parents ...

Biology 30
For ABO blood groups in the humans, the A and B genes are codminant. Both A and B are dominant over O a. Identify the possible blood types in the children of a man with blood type O and a woman with blood type AB. My work: The possible blood types that the children could have ...

Biology
How do nucleotides and hydrogen bonds affect the structure of DNA? Maybe something like nucleotides make up DNA and hydrogen bonds hold the nitrogenous bases together?

Biology
What does it take to be a living organism? Living things share 8 characteristics that are listed in Chapter 1 of your textbook on page 19. Think of an organism or cell in which all 8 characteristics are not obvious. For example, coral looks like it does not move, red blood ...

biology
3. A cylinder and an airtight piston are used in the following experiment. The piston is pushed up and down in the cylinder and the resulting pressure of the air inside the cylinder is measured with a pressure gauge. The results of the experiment are recorded in the following ...

William Pescod High School
History, tourism, biology and mathematical literacy What can I become with these subjects?

Biology
What is formed when water molecules breaks apart?

pre algebra
in a math class with 31 students 27 earned a passing grade in a biology class with 21 students 17 earned a passing grade... what fraction of the math students earned a passing grade

biology
Which of the following processes releases energy to be used by a cell? a phosphate group is added to ATP to form ADP. a phosphate group is removed from ADP to form ATP. a phosphate group is added to ADP to form ATP. a phosphate group is removed from ATP to form ADP. not sure ...

biology
How can i get air in a bag, into a beaker of solution?

Biology
If 25 individuals were alive in 1955 and 500 existed in 2013, what is r? Show work please! a) 475 b)2.99 c)0.052 d)0.029

Biology (or math)
What is the surface area to volume ratio of a cube with a with of 4 cm. I think its 1.5:1

Biology (bobpursley)
1) Describe how comparing the anatomy of living species provides evidence of evolution. A: Comparisons of the anatomy of different types of organisms often reveal basic similarities in body structures even though the structure's functions may differ between organisms. For ...

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Homework Help: Science

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