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  • Waiting for answer How do vacuoles help maintain homeostasis?

    Vacuoles are organelles found in cells. They play a role in storage of both nutrients and waste products . They help maintain homeostasis in the following way: Maintaining acidity : In case the pH in the environment drops a lot (becomes very acidic), there is a flux of H ions from the cell's c...

  • Waiting for answer What two simple machines make a screw?

    a screw IS a simple machine The others are : Lever Wheel and axle Pulley Inclined plane Wedge

  • Waiting for answer An acid-base titration is performed but some base that splas...

    The calculator will be erroneously high. If we imagine a titration between HCl and NaOH. We use a ##1moldm^-3## sample of HCl to workout the concentration of a 25ml sample of NaOH,...

  • Waiting for answer What is the number of dots in the electron dot symbol of nit...

    In dinitrogen gas, ##N_2##, there are 5 associated with each nitrogen atom. ##N##, ##Z=7##, and thus 7 electrons associated with the neutral atom. Two of these electrons are inne...

  • Waiting for answer What is absolute threshold?

    In neuroscience and psychophysics, an absolute threshold was originally defined as the lowest level of a stimulus – light, sound, touch, etc. – that an organism could detect (Wiki)....

  • Waiting for answer What is the pH of the equivalence point solution in the titr...

    The of the solution is ##8.752## !! LONG ANSWER !! Before doing anycalculations, make sure that you have a clear understanding of what goes on here. You're titrating acetic acid...

  • Waiting for answer What is the past tense of the word "draw"?

    drew root/base word: draw form: draws form: drew past participle: drawn present participle: drawing this is constant, you'll just have to memorize it.

  • Waiting for answer How do you write 0.416 [6 is the repeating decimal] as a fra...

    Question 1 : ##0.416[6...]## ##((x,=, 0.4166[6...]),(10x,=,4.1666[6..]),(9x,=,3.750[0..]))## ##x = (3.75)/9 = 375/900 = 5/12## Question 2: ##1.27[27...]## ##((x,=, 1.2727[27..]),(100x,=,127.27[27..]),(99x,=,126.0[0..]))## ##x= 126/99 = 1 3/11## Question 3 : ##0.148[148...]## ##((x,=, 0.148...

  • Waiting for answer What is the difference between a definite and indefinite int...

    A definite integral has limits of integration and the answer is a specific area. An indefinite integral returns a function of the independent variable(s). A definite integral has li...

  • Waiting for answer Is hydrolysis exothermic or endothermic?

    It depends on the particular reaction. Two points to remember: Breaking of bonds is always endothermic . Formation of bonds is always exothermic . Consider the hydrolysis of an...

  • Waiting for answer What is the structural and functional unit of the kidney?

    Nephrons are the structural and functional units of kidneys.

  • Waiting for answer What is a cresol? and what are the different types of cresol...

    It's a common name for a methylphenol or hydroxytoluene, take your pick. There are only three cresols: o-cresol, m-cresol, and p-cresol, due to the symmetric nature of benzene. Their densities are similar. They each have a hydroxyl group and a methyl group. These are ortho, meta, and para isomers...

  • Waiting for answer How do you solve for y: ##2x + y = 8## , ##2x - y = 8##?

    You can solve this by Elimination Method . Elimination Method: Add this two equation together to eliminate ##y## ##2x+cancely = 8 ## ##2x -cancely = 8)## ##4x= 16## ##color(blue)(x= 4)## Substitute ##x## in any of the equation say, ##2x+y = 8## ##2(4)+y = 8## ##8 + y =8## transposing 8 on the...

  • Waiting for answer Is the term "buffered aspirin" used correctly?

    At least in the chemical sense, the term "buffered aspirin" is used incorrectly. Aspirin is a weak acid. In aqueous solution, it ionizes according to the equation HA + H₂O ⇌ H₃O⁺ + A⁻ The stomach contents are highly acidic, with a between 1.5 and 3.5. This pushes the position of equilibrium to...

  • Waiting for answer Dogs have 78 chromosomes in their diploid cells. How many ch...

    There are ##39## chromosomes in their haploid cells. During I, the ##78## chromosomes in a diploid cell line up at the equator of the cell. Note that the chromosomes have already re...

  • Waiting for answer How do you find the vertex and intercepts for ##y = (x-5)^2...

    (5,2) , (0,27) , no x-intercepts The standard vertex form of a quadratic function is ##color(red)(|bar(ul(color(white)(a/a)color(black)( y =a (x - h)^2 + k)color(white)(a/a)|)))##...

  • Waiting for answer A 1000-watt microwave oven takes 60 seconds to heat a bowl o...

    The microwave uses ##6000 J## of energy. Where ##P## = Power, ##t## = time, and ##W## = work ... ##P = 1000## watts ##t = 60## seconds The formula for Power is given by: ##P = W/t## Therefore: 1000 Watts = ##W/60## So ... ##W=1000(60) =6000 W## (or J=Joules) From this, we can say that a mic...

  • Waiting for answer If lemonade costs $0.52 per pint, what is the cost per cup?

    $0.26 per cup The “units” will be $/cup. The math will be conversion of pints to cups. There are 2 cups in a pint (you can look that up -or Google it). So our conversion ratio val...

  • Waiting for answer What is aphasia?

    A language disorder that affects a person's ability to communicate. In short , it is inability of a person to pronounce words properly die to damage in Brocas motor speech are of temporal lobe of fore brain.

  • Waiting for answer Is parathormone an anterior pituitary hormone?

    Parathormone is secreted by parathyroid glands. These glands are present on the dorsal side of thyroid gland.

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