11/01/22

Chemistry Calorimetry Question
You order a 16 oz glass of tea (where the mass of Tea is 474 grams) from a local restaurant. The tea is freshly brewed and has an initial temperature of 28.21 °C. You add ice to cool it. If the... more
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10/24/22

i need help with this physics
As a gasoline engine is running, an amount of gasoline containing 12,000 J of chemical potential energy is burned in 1 s. During that second, the engine does 4,000 J of work.(a)What is the engine's... more
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10/11/22

Please help me find the probability of this questions

It has been estimated that only about 30% of California residents have adequate earthquake supplies. Suppose you randomly survey 11 California residents. We are interested in the number who have... more
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02/26/22

For each of the reactions at constant pressure, determine whether the system does work on the surroundings or the surroundings does work on the system.
Please help me with this. Thank you :)))))For each of the reactions at constant pressure, determine whether the system does work on the surroundings or the surroundings does work on the... more
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02/04/22

An ebony log with volume 11.0 ft3 is submerged in water. What is the buoyant force on it (in lb)?
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06/03/21

Hello I’m need to wyzant and my school is almost over. I need help completing my homework as soon as possible before the deadline please please help me.
3 Cu + 8HNO3 g 3 Cu(NO3)2   + 2 NO + 4 H2OIn the above equation how many moles of NO can be made when 58 moles of HNO3 are consumed? 2 NH3 + 3 CuO g 3 Cu + N2 + 3 H2OIn the above equation how many... more
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05/14/21

please help :/ !
Triangle XYZ was dilated by a scale factor of 2 to create triangle ACB and cos ∠X = 2 and 5 tenths over 5 and 59 hundredths. Triangles XYZ and ACB; angles Y and C both measure 90 degrees, angles A... more
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03/21/21

What facts address the concern that Wolbachia-infected mosquitoes released into the environment will have a negative impact? 
Required informationSkip to question Many arthropods are infected with a microbe called Wolbachia, a genus of Gram-negative parasitic bacteria found in more than 40% of all insect species. These... more
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03/19/21

acid and buffers
Calculate the Ph of a solution made adding 10 ml of 1.0M HCI to 1 liter of water
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03/18/21

Estimate the change in profit.

The management off Miller's restaurant forecast that they will sell 200,000 cases of their chicken wing hot sauce next year. Their annual profit is described by:P(x)= -0.000032x^2+6x-1000Where x is... more
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03/03/21

Chapters 20-21 Summative Assessment Part 1
A police officer uses a breathalyzer to test the blood alcohol content of drivers suspected of a DUI. The driver will be arrested if the officer believes that the driver is drunk, according to the... more
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03/01/21

Genetic code exercise

an mRNA segment encodes the peptide Met- Thr - Phe - Ile - Trp. Proflavin causes the removal of a single base from the gene encoding this mRNA. The new peptide translated from the modified mRNA is... more
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02/22/21

Biochemistry question
A) Describe how you would set up an experiment to determine if a newly synthesized peroxide is a mutagen. How would you interpret the results?B) How might you determine if addition of an... more
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02/06/21

Homework question

How are electrostatic pressure and diffusion force related, in regard to the resting membrane potential?
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06/29/19

Why is "VOLVOX" not considered to be in PROTOZA?
Volovox is an Algae, but it moves with the help of Flagella. Protozoa has members that move by Flagella. Why is Volovox taxonomically in the Algae instead of Protozoa?
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06/28/19

Evolution of parasite into ideal parasite?
An ideal parasite is a parasite which thrives within a host without harming it (according to my NCERT textbook). Then, quite obviously, why hasn't that happened yet? I mean, natural selection can... more
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06/15/19

When is Semelparous reproduction most likely to be favoured?
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06/06/19

Can plants photosynthesize all-day?
If a plant was given sunlight even during the night, with appropriate constant intensity during day and night, will the plant be able to maintain health and normally photosynthesize throughout the... more
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05/04/19

Does Cas9 require a nuclear localization signal (NLS) for it to work in a Eukaryote?
I'm trying to establish if it's required to add a NLS to Cas9 when expressed (or transfected) in a Eukaryotic cell. Several papers report using a viral NLS, but is it absolutely necessary? ... more
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05/01/19

How can I find a fern gametophyte in the wild?
For a while now I've been trying to keep my eye out for fern protothallia. Either I'm looking at the wrong time or place, or I'm seeing them and not recognising them. Where and when should I be... more
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04/12/19

Directed evolution: Point mutation vs Insertion-Deletion vs Shuffling?
When attempting enzyme function improvement via Directed Evolution I can see three different strategies to generating variation for the gene sequence: 1. Point mutations 2. Insertion / Deletions 3.... more
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04/01/19

Do beneficial viruses exist? If so, what examples are there?
Typically, people call viruses some kind of organic compounds that cannot reproduce autonomously and which **lower the fitness** of their hosts. Even the word "virus" means "venom" in Latin. But... more
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03/21/19

Open ended response assessment from cell division and complex organisms
why Is cellular differentiation important to complex organisms
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03/05/19

How many gumballs fit in the gumball machine?
A gumball machine is shown in the figure. The diameter of the sphere with the gumballs on the top of the machine is 12 inches. The cylinder with the gumballs under the sphere is 6 inches in... more
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02/26/19

Help fast!Description below:What are the genotypes of the parents? Complete the genetic cross and describe the ratio of blue to brown eyes among the children. What are the genotypes of the children?
A women with blue eyes, a recessive trait, and a man with brown eyes, the dominant trait, have children with both blue eyes and brown eyes.What are the genotypes of the parents?Complete the genetic... more
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