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Homework Help: Science: Biology

Recent Homework Questions About Biology

biology
substrate concentration and pH affect enzyme activity. Is there another environmental condition you think could affect enzyme activity How would you test your hypothesis?

biology
30. Enzymes function most efficiently at the temperature of a typical cell, which is 37 degrees Celsius. Increases or decreases in temperature can significantly lower the reaction rate. What does this suggest about the importance of temperature-regulating mechanisms in ...

Biology
How is the anaerobic energy system not entirely anaerobic?

biology
What is the name of the instrument use in measuring Ph slope,depth of water,hydrogen ion concentration.

biology
what is a full citation guide of an article?

biology help?
In 1857, Louis Pasteur discovered that yeast is a living organism. The activity of yeast causes fermentation – baker’s yeast, Saccharomyces cerevisiae, has been used for centuries in the production of bread, beer and wine. In the absence of oxygen, yeast is able to derive ...

BIOLOGY PLEASE HELP!!!!!!!!!!!!!!!!
embedded protein in the electron transport chain where h+ ions flow back into the matrix of the mitochondria Crossword puzzle 11 spaces sixth letter is n cant figure it out?

biology
where do h+ ions accumulate in the mito chondria? 18 spaces 17th letter is c cant figure it out?

biology
embedded protein in the electron transport chain where h+ ions flow back into the matrix of the mitochondria 11 spaces sixth letter is n cant figure it out?

Biology
what molecule is released before acetyl coa enters the krebs cycle Doing cross word puzzle 13 spaces cant figure it out?

Biology
Which chromosome is more exposed to sex-linked disorders X or Y chromosome? Why?

Biology
Are there any differences between the thyroid gland, thymus gland, and spleen in a male and female pig?

Biology
What is the significance of the different length: volume ratios of the digestive organs?

Biology
list the 3 domains and the kingdoms included in each. please help me!!!! :) thanks

SCIENCE Biology (urgent)
answer it with 2 paragraphs.. 1.How does chlamydia infect the human body? 2.What are the complications that can result from chlamydia infection? 3.What are the benefits of the CPAF inhibitor? 4.In what instances can control of endocycling be beneficial? 5.What are the ...

Biology
DNA synthesis starts at the Replication Origin. In what way(s) do you think that the Replication Origin might be similar to a Promoter and in what ways might it be different?

biology (confused)
Hi Will someone please check my answers. I went to biology-forums(dot)com and registered but i really don't know how to post my questions and i really need help (with the questions). Thanks in advance. 1. Which process involves both passive and active transport? a.)facilitated...

biology (cell bio)
Can someone explain the Nernst Equation and its purpose, in as simple terms as possible? For some reason it's just not clicking with me. Thanks!

biology help!!
Please check my answers. I did my best. 1. Which process involves both passive and active transport? a.)facilitated diffusion<---- b.)cotransport c.)bulk transport d.)transport through electrogenic pumps e.)osmosis 2. How does the liver in a healthy body respond to elevated...

biology
Please check my answers. I did my best. 1. Which process involves both passive and active transport? a.)facilitated diffusion<---- b.)cotransport c.)bulk transport d.)transport through electrogenic pumps e.)osmosis 2. How does the liver in a healthy body respond to elevated...

Biology
what kingdom does opalina belong to? and... what kingdom does rockweed belong to?

biology
Will someone please check my answers? 1. Which process results in an individual inheriting the incorrect number of chromosomes? a.)mutation b.)nondisjunction<-- c.)segregation error d.)duplication error e.)linkage 2. Which data in Hershey and Chase's experiment supported ...

biology
a boy inherits genes for tallness,but his growth is limited as a result of poor nitrition. this is an example of 1)an inherited disorder. 2)environmental influence on gene expression . 3)expression of a hidden trait 4)a characterstic controlled by more than one pair of genes. ...

Biology
What is one negative effect of indirect artificial selection?

Biology Difference b/w Heat Exhaustion/Heat Stroke
I want to know the causes of heat stroke and heat exhaustion. I cant seem to find separate causes for the two, finding very different answers online :|

Biology
You are studying a large population of claims of which 396 are pink (t) and 557 are Tan (T). Tan clams are completely dominant over pink clams. Calculate the following: 1. The frequencies of each allele. 2. The expected genotypic frequencies. 3. The number of heterozygous ...

biology
JANUARY 2009. This graph represents hormons and events in the 1.process of fetal growth and development. 2.process of meiotic cell divission during sperm dev elopment. 3.reproductive cycle of males. 4.reproductive cycle of females. i have to choose one of them what is the ...

Biology
Hey I am doing a lab, the link is down h t t p : //w w w . sd67 . bc . ca/schools/salc/biology%2012/module%20c%​20-%20human%20biology/unit%2010%20-%20re​spiratory%20system/Homeostasis%20Lab .pdf And I really would like help with #1 My data is right here Pre ...

Biology
1. 525 jackrabbits in the desert. Big ears (B) are dominant among jackrabbits, while stubby ears (b) are recessive. Of the study of this population, 189 rabbits have stubby ears. Calculate: 1.The frequency of the "bb" genotype 2.The frequency of the "b" allele 3.The frequency ...

General Biology
There is only one bag potato chips left on the planet Earth. Ed and Trina have found it on the far side of ‘look out’ mountain with 2 grams of water inside the bag. The chips were soggy. Until another source of nutrients has been discovered they must share this bag of ...

Biology....someone who can explain something to me
can someone explain the Miller-Urey Experiment to me? I've read it again and again and I just don't really get it. Please help me out here.

biology
7. Imagine you have 2 chambers connected by a flexible, semipermeable membrane and completely filled with solutions - one chamber contains 50ml of a 50mM NaCl solution (A), and the other (B) contains 100 ml of a 100mM NaCl solution? If the membrane permits both water and NaCl ...

Biology
6. Describe and explain what would happen to a cell containing 100mM NaCl, 150 mM glucose, and 100 mM protein if placed into: a) distilled water? (describe the volume change if the cell were permeable to water only). b) a solution of 100mM NaCl, IF the cell were permeable to ...

Biology...
1. References are made by the anatomist to the front,back,head and tail of the body. What anatomical reference terms are used to describe each of these directions? My answer: anterior, posterior, I am not sure with head and tail Is it superior and inferior?? 2. A person lying ...

biology
How to make structure of DNA ladder like

biology help plz?????????????????
product of The oxidative phosphorylation / electron transport is ? in stage of glucose oxidation a)pyruvate b)oxygen c)water d)NAD e)ATP f)NAD.2H g)carbon dioxide h)ADP CHOSE TWO ANSWER FROM THE FOLLOWING LIST product of Glycolysis is? a)pyruvate b)oxygen c)water d)NAD e)ATP f...

biology help plz?????????????????
the mRNA squence below is shown along with the polypeptide which would be produced when it is translated .what polypeptide would be produced if the fifth base in the mRNA sequence shown had been changed to A as result of a mutation in the DNA from which the mRNA wa transcribed...

biology
What is the scientific reason to the larger population of females than males in countries in relation to chromosomes?

biology
List any five anatomical differences between monocot root and dicot root.

biology
property of muscle in which the strength of its contraction can vary from weak to strong

biology
nerve fiber control over muscle or gland effector activity

Biology
What is a cross between plants that involves one characteristic called

biology
Gastrulation geometrically separates the future ectoderm, from what?

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

Biology
In a population of jaguars, a gene with two alleles encodes the fur color. Allele B causes melanism (dark fur) and is dominant over allele b, which results in light colored fur. Suppose that there is a migration event, producing a population with 60% BB, 20% Bb and 20% bb ...

Biology
In a lab experiment, we experimented with 1% glucose solution and Sorenson's solution to determine pH levels and whatnot; the other part of the lab was to determine which one, if either, was a buffering solution. According to the notes my instructor gave us, a buffers are ...

biology
1. discuss the mechanisms that organisms undergo to accomplish morphogenesis 2. Describe the contributions of drosophila and nematodes in advancing understandings of development

Biology
How does diabetes affect the brain?

Biology-reaction time
How can someone improve their reaction time? also what type of athlete would have a above average reaction time? Please explain why?

BIOLOGY
What is the majority of the mass of the heart composed of? a. Endocardium b. Myocardium c. Pericardium d. Endothelium

Biology
Okay so if i have two enzyme catalyzed reactions: 1) delta g of the ES = -22kJ/mol 2) delta g od the ES = 42 kJ/mol Is this first reaction going to have a higher reaction rate because the of the negative delta g, because doesnt a negative delta g give you a spontaneous ...

Biochemistry, Biology, Chemistry
An enzyme works on two substrates, S1 and S2. Its Km for S1 is 100mM and its Km for S2 is 10mM. Based on this information, answer the following questions: 1. For a given [E] will it have a higher Vmax for S1 or S2? Explain your answer 2. Is S1 or S2 a better substrate for the ...

biology
1. discuss the mechanisms that organisms undergo to accomplish morphogenesis 2. Describe the contributions of drosophila and nematodes in advancing understandings of development

biology
Mode of formation of nutrition(two pages)

Biology
What piece of evidence would actually allow us to measure the actual rate at which continental drift is occurring?

biology
what is theoffspring of a yellow seed and a green seeds genotype and phenotype?

biology
why would you like to watch wildlife on television or visit the zoo?

Biology
How do scientists calibrate a molecular clock? A)They determine the number of mutations accumulated in a gene of a species of known age. B)They compare the ticking of the molecular clock with that of the atomic clock. C)They use the clock that ticks at the appropriate rate for...

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 ...

biology
how can u investigate sugars or starch in a banana

biology
Show that germinatingseeds produce heat energy.

Environmental Biology
Identify two different types of businesses or corporations (be as specific as possible) that receive subsidies, through which it could be argued that environmental damage is a result. Briefly describe the environmental damage for each.

Biology
A blue eyed man whose parents were brown eyed marries a brown eyed woman whose father was brown eyed whose mother was blue eyed they have one female child who is blue eyed make a pedigree chart based on the information above.

Please help -biology
why does water and hydrogen peroxide have different chemical and physical properties

Biology
why does water and hydrogen peroxide have different chemical and physical properties

Biology
why does water and hydrogen peroxide have different chemical and physical properties

biology
If the side chain of a glutamic acid residue has a pKa of 4.1, at pH 6.1 the ratio of uncharged to charged side chain would be about A. 100:1 B. 10:1 C. 1:1 D. 1:10 E. 1:100

biology
Which of the following amino acids has the most hydrophilic side chain? A. F B. Q C. V D. M E. A

biology
Which of the following amino acids has a side chain that carries a negative charge in its conjugate base form? A. H B. W C. C D. K E. N

Biology
1.Which of the following accurately describes the relationship between cyanobacteria and halophiles? A.Cyanobacteria are photosynthetic, which suggests they existed before halophiles. b.Halophiles can survive in extreme conditions, which suggests they are more evolved than ...

Chemistry - Biology
Explain why glucose is improtant to humans ? Ans:Glucose is important to the body cecause it helps the reporduction of cells, coposition of proteins and nucleic acids foundin all cells. It helps growth and repairs tissues . Is that correct??

biology
what is the importance of islands in the study of evolution?

Biology
What will happen to the enzyme activity if both competetive and non-competetive inhibitors appear at the same time together with substrates in a reaction? Which inhibitor will affect the rate of the reaction in more?

Biology
What will happen to the enzyme activity if both competetive and non-competetive inhibitors appear at the same time together with substrates in a reaction? Which inhibitor will affect the rate of the reaction in more?

biology honors
In which tissue of plants are new cells created? A.dermal B.vascular C.ground D.meristematic

biology honors
In which tissue of plants are new cells created? A.dermal B.vascular C.ground D.meristematic

biology honors
Why do leaves tend to be flat.choices a.so that water can easily be absorbed and carried to the rest of the plant. B.so that sunlight can easily penetrate to the leafs photosynthetic tissues. C.so that nutrients can easily enter the plant and be be used for structure and ...

Biology
Why DNA is more stable than RNA?

Biology
What is the case for that sucrose is said to be non-reducing sugar?

greenhouse biology
what organism is a porkaryotic cell?

Biology
check my answers? 1. What is the difference between Darwin's theory of evolution and Lamarck's theory of evolution? A)Darwin believed that organisms changed gradually over time, but Lamarck thought they changed suddenly. B)Lamarck believed that organisms could acquire ...

Biology
So I am completely confused. I am in the process of taking a quiz and the question says "a factor that seems to disappear" my options are punnet square, heredity, dominant factor, recessive factor, alleles, or genetics??? Help please? Thanks

Biology
how do chromosomes determine sex a family has four children, two girls, and two boys. one girl and one boy are color blind. are their parents color blind name at least three traits that are a results of polygenic inheritance weight, eye clor, height (right) what possible ...

biology
do you know how much drops of dcpip is required to make .9 , .6 , 1.1 and .8 cm squared my partner and i frogot to write down the number of drops to make the dcpip volume

Biology
12. A main difference between fungi and plants is that fungi a. have cell walls. b. produce spores. c. cannot make food. d. all of the above.

Biology
34. The _____ has a cell covering made of two parts. a. diatom b. dinoflagellate c. euglena

Biology
28. Malaria is caused by a a. sporozoan. b. diatom. c. dinoflagellate. d. fungus.

Biology
these are some of the questions that i couldn't find the answers in the book. :( 17.The relationship between a fungus and a green organism is an example of a. neighbors. b. mutualism. c. parasitism. d. saprophytes.

biology
16. In one stage of it's life cycle, the slime mold flows like a(n) a. paramecium. b. euglena. c. diatom. d. amoeba.

Biology
55. A living thing, usually with one cell that has a nucleus and other cells parts, is a a. moneran. b. virus. c. protist. d. fungus.

Biology
22.Which of the following is not a member of the protist kingdom? a. bacteria b. slime mold c. paramecium d. amoeba

biology
why are yeast classified as eukaryotes? i know they are in kingdom fungi and all the members are eukaryotes but why?

biology
please help me with these to questions! The trait that viruses share with living things is the ability to a. adapt. b. use food. c. respond. d. reproduce. and Some viruses cause the host cell to reproduce both itself and the virus. Groups of these cells become a. polio. b. ...

Biology
The trait that viruses share with living things is the ability to a. adapt. b. use food. c. respond. d. reproduce.

Biology
Some viruses cause the host cell to reproduce both itself and the virus. Groups of these cells become a. polio. b. tumors. c. mumps. d. rabies.

Biology
The _____ is always written first in a scientific name. a. genus b. species c. genus and species

biology
what is a calorie?

Biology
Post a New QuestionCurrent QuestionsChat With Live Tutors Homework Help: Biology Posted by Anonymous on Sunday, January 6, 2013 at 1:46pm. 1. What is the term for the end of a bone that is closest to the mid line of the body? Diaphysis Metaphysis Proximal epiphysis Endosteum 2...

Ant
10. Diffusion means: a. cultural traits are expressions of our biology. b. the environment is responsible for culture change. c. cultures borrow ideas, material items, and concepts from each other. d. people are often unwilling to move to new locations.

Biology
1. What is the term for the end of a bone that is closest to the mid line of the body? Diaphysis Metaphysis Proximal epiphysis Endosteum 2. What is the area called where the nerves pass through the scapula? Scapular notch Acromian process Glenoid fossa Subscapular fossa 3. ...

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Homework Help: Science

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