Homework Help: Science: Biology

Recent Homework Questions About Biology

Biology
Explain the following statement: "life is complex on a molecular level. How is your environment different from the biosphere?

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 ...

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.

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

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 ...

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

biology
Which organelle(s) are likely to be involved in the reduced efficiency of amino acid recycling in wimpys liver cells?

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% ...

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 ...

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 ...

biology
how do electrons move

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 ...

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 ...

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)

biology
Could a man with type B blood and a woman with type AB blood produce a child with type O blood? Explain

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?

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

Biology
How are cohesion and adhesion of water ar linked to photosynthesis

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 properties ...

biology
: How are cohesion and adhesion properties of water linked to photosynthesis

Biology
How are cohesion and adhesion properties of water linked to photosynthesis

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 ...

biology
Discuss physiologically the importance of human tissues

biology
Discuss morphologycally the human tissues

biology
How are cohesion and adhesion properties of water linked to photosynthesis?

AP Biology
What are the phenotypes of the long-nosed cusimanse? I can't find any site about their body structure or function either.

biology assignment
How are cohesion and adhesion properties of water linked to photosynthesis

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

Biology assignment
How are cohesion and adhesion properties of water linked to photosynthesis

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 ...

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 ...

biology
Give two reasons why the pressure decreases as blood flows along the capillary bed.

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?

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

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 ...

Biology
how to maintain the qualities of water ?

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?

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 ...

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

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 ...

Biology
* what do organisms needs ? * how do organism secure what they needs ? * what are the attributes of life ?

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?

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 Concentration: 0....

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 present d...

Biology
What is the actual storage of energy in the muscles? ATP or Glycogen?

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 ...

biology
chemical reaction involve changes in bonds between atoms. true or false

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 ...

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 ...

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

biology
what is the habitat,observable features,economic importance,scientific name,behavioural adaptation,mode of feeding and other necessary details of a cricket.

plzzz help immediately biology
what is cohabitation

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?

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

Biology
Outline the process of sampling along a transect

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

biology
magnification of simple microscope

Biology - Diversity
A scenario where bacteria will undergo sexually reproduction instead of taking the "safe route" and reproducing asexually. I know that they reproduce sexually when conditions are not favorable and will enter a dorment stage until conditions get better but what scenario would ...

Biology
In the microscope activity, you viewed some of the same specimens under multiple microscopes. Describe the differences in what you could see under each microscope. Which microscope would view small specimens the best and why?

Biology Help Please!
1) You are going to make 1800ml of a 25uM solution using a compound whose MW= 60.06 Daltons. How many grams do you need of this compound? Give your answer with four decimal places. 2) You are going to make 300ml of a 75mM solution using a compound whose MW=818 g/mole. How many...

biology
take an apricot , a walnut , few raisins square peice of spinach ,shelled egg and deshelled egg. prepare four solutions A,B,C and D.solution A is a10% solution of suger ,solution B is 80%suger solution ,solution C is10% salt solution and solutionD is80%salt solution In ...

Science (Biology)
Use your knowledge of photosynthesis to explain what is happening in the following graphs. 67(dot)media(dot)tumblr(dot)com /d99a0dd856c87dfc21b9314f89019994/tumblr​_o7ltp1unLS1tt1il6o1_1280.jpg

Biology
1. All fungi are ~photosynthetic ~heterotrophic ~autotropic ~parasitic 2. What structure is missing in the fungal hypae shown on the right side of Figure 21-5? ~cell walls ~cross walls ~nuclei ~cytoplasm 3. Which of the following is true of fungi? ~Like plants, they carry out ...

mathematics
If 45 percent of the students of a class have offered mathematics and 85 percent of them biology, find the percentage of students who offered biology only?

Biology
One of the differences between Cambrian animals and pre-Cambrian animals was the appearance of ___________ such as antennae as Cambrian animals evolved. Can somebody help me I literally have no clue.

MATH
The FritzHugh-Nagomo equation occurs in many apps such as biology, genetics and heat transfer. In the 1-D case, it can be written as du/dt = d^2/dx^2 + u(u-1)(λ-u) where λ is constant. Show that this eqn supports a travelling wave u(x,t) =(Ae^n1 + λBe^n2)/(Ae^n1...

Math
At small town high there are 100 students,each of whom takes atleast one of Biology,Chemistry,or physics.There are 50 student in Biology,60 in chemistry,and 70 in Physics.If 24 students are enrolled in exactly two of the classes,how many students are in all three?

biology
what is the mode of nutrition,habitat, economic importance, classifications scientific name, observable features and adaptation of an earthworm.

Biology
1. All fungi are ~photosynthetic ~heterotrophic ~autotropic ~parasitic 2. What structure is missing in the fungal hypae shown on the right side of Figure 21-5? ~cell walls ~cross walls ~nuclei ~cytoplasm 3. Which of the following is true of fungi? ~Like plants, they carry out ...

Spanish
What are schools and organizations in silicon valley doing to foster growth for hispanic and latino students? a. Offering math programs in the summer b. Offering english classes year round C.offering tutoring classes in science during the weekends d. offering writing classes ...

biology
Cross two plants that are both heterozygous for pod color. What fraction of the offspring will be dominant?

biology
Cross a constricted plant with a heterozygous plant. What fraction of the offspring will be homozygous?

Biology
Reasons on why a person that has been sunbathing all day eats a salt tablet

Biology
Describe the traits that distinguish animals from other organisms Explain the diversity of invertebrates, chordates, and primates using the theory of evolution Describe the structures and body systems of animals that allow them to maintain homeostasis Describe the structures ...

Biology
1. What are protists? (1 point) prokaryotes that are part of domain Archaea eukaryotes that are not part of the plant, animal, or fungi kingdoms single-celled organisms that belong to the plant, animal, and fungi kingdoms single-celled eukaryotes that are part of the plant and...

Biology
To move, nonmotile protists depend on? ~Air or water currents and other organisms. ~Cytoplasmic projections. ~Cilia and flagella ~Microtubules

Biology
Identify the Protist and explain why you think it is what you said. We took dead leaves from outside, put them in boiling water then looked at them a week later. Link to image below! LINK: postimg. org/image/gu1201se9

Biology
Identify the Protist and explain why you think it is what you said. We took dead leaves from outside, put them in boiling water then looked at them a week later. Link to image below! LINK: postimg. org/image/gu1201se9/

Biology
Why do you think biologists use both the embryological development and the adult body plans to classify an animal? My answer: Biologists use both because there are many different phyla in the adult body plans. The embryological development help differentiate the classification...

Biology
1aOrder the following steps of microscope use. A. Observe the specimen under low power; resolve with the fine adjustment. B. Raise the stage; observe under scanning power; focus with coarse adjustment; resolve with fine adjustment. C. Observe the specimen under high power dry...

Math/Biology
8c) The scanning objective lens (4x) of a microscope has a diameter of field of 6.0 mm and a total magnification of 40x. The high power objective lens has a total magnification of 400x. Estimate the diameter of field of view of the high-power objective lens by using the ...

Biology - Help!
Based on your knowledge of eukaryotic gene regulation, what series of events would explain the generation of the "pre-activated" state for the full set of B-globin like genes (epsilon, gamma, delta, and beta) in the earliest embryo?

Biology/science
How is creating a virtual ecosystem similar and different from the real world?

Biology)
How is creating a virtual ecosystem similar and different from the real world?

Psychology
13.Within the cerebral cortex, the _______ area is found in the occipital lobe. A. visual B. association C. somatosensory D. main auditory 14.Dr. Lombard's research is focused on the capacity of the human mind to store and retrieve information. Her colleague, Dr. Fry, is a ...

Biology
Which of the following animals are considered hominiods? Select all that apply. gibbons Old World Monkey orangutans tarsiers

Biology
What percentage of animals on earth are vertibrates? 5% 25% 50% 95%

Biology Help Please!
1) A transcriptional fusion of regulatory sequences of a particular gene with a reporter gene results in relatively uniform expression of the reporter gene in all cells of an organism, whereas a translational fusion with the same gene shows reporter gene expression only in the...

Biology
8. Presenting with symptoms of recurrent infections, weakness, and frequency of urination over a 6 month period, a 34-year-old man is found to have a blood glucose level of 142 mg/dl and an elevated hemoglobin A1c level. His most likely diagnosis is: A. Type 2 diabetes B. Type...

Biology
Do you expect that somatic cell gene therapy and germ-line gene therapy for the same disease will be equally difficult?

Biology
5 reasons for conserving natural resources

Biology 9th grade
I am stuck on a question on The Integumentary System, the question is Water molecules in the blood pass through the walls of the (blank) into the sweat glands. I am not sure, can someone help me, thanks.

Biology; PLEASE I NEED THIS ANSWERED QUICKLY!
1. Fill in the five levels of human body organization. ~~~ Not sure what it's asking for me to do. Is it asking for me to name the most important body systems? Because in that case EVERY SINGLE ONE comes to mind. Just need a simple explanation and I'll be on my way. Thanks in ...

Biology
1. Fill in the five levels of human body organization.   AND 2. Place the five examples below in order from largest to smallest:   You, Stomach, Epithelial Tissue, Digestive System, Parietal cells. ~~~~~~~ I don't know the first one but I think that the second one is: You...

Science
1. Which of the following could be an engineering project that could better protect the planet? -finding a new landfill site -designing a better trash compacter -deciding which product can be recycled*** -growing microbes that eat oil 2. Engineers who are working to find ...

Science
I am doing an extension to get into the AP Biology course offered by my school. This particular extension asked me to use vinegar and baking soda aswell as some basic scientific tools to find the concentration of acetic acid in vinegar. I wanted to know what a procedure for ...

Biology Help Please!
)Describe the importance of chromatin remodeling process to transcription. Select the four correct answers. a) These alterations can be used to activate transcription of a gene by hiding its enhancer sequences. b) These alterations can be used to activate transcription of a ...

Science/ Biology/ patho
3. A 32-year-old man comes to his physician complaining of frequency, dysuria, and urgency for several days, as well as pain in the perineal region. The digital rectal examination is extremely painful. He most likely has A. A primary chancre of syphilis in his genital organs B...

Science/Biology/Anatomy/Patho
10. Functions of the nephron include all of the following except A. Reabsorption of urea nitrogen B. Fluid homeostasis C.Maintaining electrolyte balance D.Regulation of blood pressure E. Maintaining blood pH I think A but really stuck between A & B

Biology
Compared to atoms of the same element, isotopes have different A. numbers of neutrons. B. numbers of protons. (C. types of subatomic particles.) D. numbers of electrons.

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Homework Help: Science