Answer:
A. [tex]C_2=1.5\frac{mg}{mL}[/tex]
B. [tex]C_2=0.075\frac{mg}{mL}[/tex]
C. [tex]C_2=0.01\frac{mg}{mL}[/tex]
D. [tex]C_2=0.001\frac{mg}{mL}[/tex]
Explanation:
Hello.
In this case, we must compute the final concentration in all the cases so we solve for it in the given equation:
[tex]C_2=\frac{C_1V_1}{V_2}[/tex]
Thus, we proceed as follows:
A. Here, the final diluted solution includes the 300 μL of the 5 mg/ml-BSA and the 700 μL of TBS.
[tex]C_2=\frac{300\mu L*5\frac{mg}{mL} }{(300+700)\mu L}\\\\C_2=1.5\frac{mg}{mL}[/tex]
B. Here, the final diluted solution includes the 50 μL of the 1.5 mg/ml-BSA, the 450 μL of water and the 500 μL of TBS.
[tex]C_2=\frac{50\mu L*1.5\frac{mg}{mL} }{(50+450+500)\mu L}\\\\C_2=0.075\frac{mg}{mL}[/tex]
C. Here, the final diluted solution includes the 10 μL of the 1 mg/ml-BSA and the 990 μL of TBS.
[tex]C_2=\frac{10\mu L*1\frac{mg}{mL} }{(10+990)\mu L}\\\\C_2=0.01\frac{mg}{mL}[/tex]
D. Here, the final diluted solution includes the 10 μL of the 0.1 mg/ml-BSA and the 990 μL of TBS.
[tex]C_2=\frac{10\mu L*0.1\frac{mg}{mL} }{(10+990)\mu L}\\\\C_2=0.001\frac{mg}{mL}[/tex]
Best regards.
What is the ozone layer?
A. thin layer in the lower atmosphere that protects Earth from ultraviolet rays
B. thin layer in the upper atmosphere that protects Earth from ultraviolet rays
C. thin layer in the upper atmosphere that protects Earth from supersonic rays
D. thin layer in the lower atmosphere that protects Earth from supersonic rays
Answer:
B. thin layer in the upper atmosphere that protects Earth from ultraviolet rays
what element has 34 protons and 32 neutrons
Explanation:
Selenium is the answer
il mark u brainliest 50 points
Which is one characteristic that is used to identify types of metamorphic rocks?
color
rock size
grain arrangement
type of rock before metamorphosis
------------------------------------------------------------------------------------------------------------------------
In addition to liquid precipitation, which are present when freezing rain occurs?
ice pellets
snowflakes
cold surfaces
warm temperatures
----------------------------------------------------------------------------------------------------------------------
Which describes a condition of the neritic zone?
few organisms
ample sunlight
changing salinity
frigid temperatures
Answer:
I agree with the other answer.
Explanation:
Answer:
ample sunlight
Explanation:
Which part of the microscope is used to make small adjustments in the image of an object?
A)Eyepiece
B)Fine Adjustment
C)Coarse Adjustment
D)Objective lens
Answer:
The part of the microscope that is used to make small adjustments in the image of an object is the fine adjustment.
Explanation:
In the optical microscope, the fine adjustment knob allows precise focusing of the sample being studied. This means making minimal adjustments in order to better observe the microscopic image.
After the initial focusing with the coarse adjustment knob, with the fine adjustment it is possible to highlight the details that require more attention, as well as the refringency of the sample, if it exists.
The other options are not correct because:
A. Eyepiece is the lens that receives the image from the objective lens, that has contact with the eyes of the observer.
C. Coarse Adjustment is the rough magnification, used for the initial approximation of the image.
D. Objective lens enlarges and defines the image of the sample on the slide.
Which is the energy source used to fuel photosynthesis?
Answer:
Sunlight
Explanation:
Sunlight
hat do the following results from the TEST FOR LIFE tab indicate about the sample?
Anna stated that carbon monoxide could not be organic because it is a gas. what is wrong with her statement?
A.) her statement is correct.
B.) Organic molecules can be gases.
C.) carbon monoxide is not a gas.
D.) Carbon monoxide is not organic because it is not produced by living things.
Answer:
from my point of view the answer should be carbon monoxide is not organic because it is not produced by living things the answer should be D
Which of the following muscles can you control:
Biceps
Quadriceps
Deltoids
All of the above
Answer:
A. Biceps
Explanation:
Biceps, are voluntary muscles, which means that you can control them.
Quadriceps and Deltoids are both involuntary muscles, so they're controlled by your nerve impulses
Thus the answer, being Biceps
the rain shadow effect is caused by
The discovery of cells was made possible by the invention of microscopes. Today, several different types of microscopes are used by scientists. Which of the following best describes transmission electron microscopes? A.Transmission microscopes produce images of cell surfaces. B.Transmission microscopes produce three-dimensional images of cells. C.Transmission microscopes produce highly detailed images of cell structures. D.Transmission microscopes produce images of living cells.
Answer:
C
Explanation:
:)
The statement that best describes transmission electron microscopes is:
C.Transmission microscopes produce highly detailed images of cell structuresA microscope is the instrument that is used to view microorganism and magnify them so that they cab be visible to the human eyes.
The transmission electron microscopes are those micrpsccp[es wjich makes use of a particle beam in order to produce a well magnified image and can magnify an object uo to two million times.
As a result of this, they produce highly detailed images of cell structures.
Therefore, the correct answer is option C
Read more here:
https://brainly.com/question/10958281
How do biological systems respond when acids or bases are added?
Biological systems do not experience any changes in pH.
Biological systems do not experience any changes in pH.
Cells produce different molecules that can function at the new pH levels.
Cells produce different molecules that can function at the new pH levels.
Most biological molecules can function at any pH value.
Most biological molecules can function at any pH value.
They have substances that counteract acids or bases to prevent the pH from changing.
Answer:
The correct answer is - They have substances that counteract acids or bases to prevent the pH from changing.
Explanation:
Including human, all the organism depends on the water so therefore known as waster system based which suggests that they depend on the acid-base liquid equilibrium to maintain its cellular functions and homeostasis.
Acid and bases are influences and determine the pH value of the chemistry of biological systems as every cycle is affected by the pH fluctuation so the maintenance of pH is very critical.
so as to keep biological system compound and in the equilibria of protonation, they have certain substances in each cycle or part that counteract the acid and base to maintain pH.
for instance:
phosphate ion maintains the Cytoplasm pH
the bicarbonate ion regulates the Blood pH
Where did Darius build a new capital?
Answer:
Persepolis and Susa, which replaced Pasargadae as capital of the Persian empire
Explanation:
Bacteria have these things:
A. Cell wall, nucleus and cell membrane
B. No membrane bound organelles, cell membrane and cell wall
C. No DNA, cell membrane and no cell wall
D. Have no organelles or DNA
4. Choose the correct list of five major current environmental challenges.
A. Climate change, species loss, environmental degradation, pollution, and environmental justice
B. Climate change, species loss, crime, food shortage, pollution
C. Species loss, crime, water shortages, global cooling, food shortage
D. Environmental degradation, water shortage, environmental justice, food shortage, pollution
Mark for review (Will be highlighted on the review page)
<< Previous Question
Next Question >>
Answer:
The answer is A
Explanation:
A scientist was fishing in a pond and decided to collect a water sample to examine back in the lab.after looking in the microscope he saw a small aquatic organism.the organism appeared to have branchlike appendages coming out of his body.it seemed to be ingesting some smaller organism that appeared to be daphnia (water fleas)which kingdom should this organism be classified in?
A.fungi
B.eubacteria or archaebacteria
C.plant
D.animal
Answer:
The answer would be fungi
Explain any one method of crop production which ensures high yield?
Which of these is not a characteristic of all living things?
Answer:
All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.
Explanation:
hope this helps
During winter vacation, you learn that a polar jet stream is traveling across the United States. The forecaster says there will be big changes in the
weather as the jet stream moves past your town in Florida
What causes wind? Choose the two that apply.
<
A
uneven heating of Earth's surface
B В
warm air sinking while cold air rises
C
air movement from high to low pressure
D
air movement from low to high pressure
Explanation:
uneven heating of Earth's surface. warm air sinking while cold air rises
What impacts would suburban development have on undeveloped deciduous forest and meadow ecosystems?
Answer:
Impacts of suburban development on undeveloped deciduous forest and meadow ecosystems are - : loss of biodiversity , excessive land use , deforestation , degradation of air quality , increase in the amount of greenhouse gases , therefore leading to environmental loss .
Explanation:
SUBURBANIZATION -: Suburbanization is a demographic change, resulting in the creation of (sub)urban sprawl, from core urban areas to suburbs. Low-density, peripheral urban areas are increasing as a consequence of the migration of households and companies out of the city centers. (Urbanization, which signifies a demographic change from rural areas to urban centres, is inversely related to suburbanization.)
Within the central urban area, many residents of metropolitan regions work and prefer to live in satellite communities called suburbs and commute to work by car or mass transit. Others have taken advantage of advances in technology to operate from their homes.
Environmental Implications -: This can have negative effects on the community with the growth of suburbanization and the spread of individuals living outside the city. Suburbanization has been related to an increase in the mileage of automobiles, an increase in land usage, and an increase in the use of residential electricity. These suburbanization factors then induced air quality deterioration, increased use of natural resources such as water and oil, and increased quantities of greenhouse gases. This causes increased use of oil and gas as well as an increase in pollution as the use of cars to drive to and from the workplace grows. This will then cause air pollution and degrade the air quality of a region with a rise in emissions from vehicles. Suburbanization is increasing, leading to an increase in housing growth, which causes the consumption of land and land available to increase.
What are the electrons in the outermost energy level called?
Answer:
The outermost energy level that (in the ground state of the atom) contains electrons is called the "valence shell" of the atom. These valence electrons are responsible for all chemical bonds between atoms.
Explanation:
Someone help please will give brainliest
Answer:
As time increased,the temperature increased for both substances.
Explanation:
(I'm sorry if I'm wrong)
[tex]\mathfrak{\huge{\pink{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the Concept of the Thermodynamics,
From the above Table 1 , we can actually conclude that,
Substance A and Substance B temperature rates are totally different and has no relation between them, also they are increasing with the time.
hence the, correct options are,
1.) and 4.)
1.) There is no relationship between heating time and temperature for either substance .
4.) as time increased, the temperature increased for the both substances.
BIO MEANS?
WHAT ARE THE TWO TYPES OF CELL
How do the three types of neurons work together?
Answer:
Sensory neurons receive impulses and carry them from the sense organs to the spinal cord or brain. Interneurons connect sensory and motor neurons and interpret the impulse. Motor neurons carry impulses from the brain and spinal cord to muscles or glands.
Explanation:
Three types of neurons are:-
Sensory neuronsMotor neuronsInterneuronsWork of Neurons?Sensory neurons receive impulses and carry them from the sense organs to the spinal cord or brain. Interneurons connect sensory and motor neurons and interpret the impulse. Motor neurons carry impulses from the brain and spinal cord to muscles or glands.What are neurons?Neurons , also know as nerve cells, send and receive signals from the brain .These are the fundamental units of the brain and nervous system.To know more about neurons here
https://brainly.com/question/24217914
#SPJ2
Filipino po, pa help po plssss need lang po
Answer:
1. Basket
2. Batya
3. Damit
4. Saranggola
5. Ballpen
di ako sure sa una at pang lima pero sabi ni ate tama naman daw :))
What animals live in the marianna trench?
Answer:
xenophyophores, amphipods and small sea cucumbers (holothurians)
Explanation:
Answer:
The three most common organisms at the bottom of the Mariana Trench are xenophyophores, amphipods and small sea cucumbers (holothurians), Gallo said. The single-celled xenophyophores resemble giant amoebas, and they eat by surrounding and absorbing their food.
Explanation:
Hope this helps:)
Put the following in order of size, starting from the largest: Cell - organ system - organ- tissue
Answer:
Organ System
Organ
Tissue
Cell
When a substance undergoes a chemical change, the chemical _________ of that substance is altered.
Fill in the blank
Answer:
Properties
Explanation:
(04.06 MO)
Which of the following is an advantage of aquaculture expansion?
1. Highly efficient
II. Uses less water
III. Uses less fuel
IV. Prevents disease
I and II only
Ob
I and III only
C
I, II, and III
Od
HI, III, IV
Answer:
1, 2 and 3. it's efficeint and uses less water and less fuel but a downside of aquaculture is that disease spreads fast, not slow.
Explanation:
i just turned in the assignment and it's right. check the assigned reading it says the answer
The advantage of aquaculture expansion is that this technique uses less fuel (Option III).
Aquaculture refers to the techniques involved in obtaining aquatic organisms in a controlled aquatic environment.The aquaculture techniques include, among others, breeding, rearing, and harvesting fish and algae.The main classes of aquaculture techniques may be divided into marine aquaculture and freshwater aquaculture.In conclusion, the advantage of aquaculture expansion is that this technique uses less fuel (Option III).
Learn more in:
https://brainly.com/question/275198
Explain what would happen to the food chains if:
a.) A toxin was released into the local water supply, and the mice in the meadow died.
b.) There was an increase in the hawk population.
a. The hawks would die because the mice died, since the bottom part of the food chain was taken out, the whole food chain would fall apart;
b. All the mice would die; since there are more hawks to eat the mice, the mice would be eaten faster than they could reproduce, and they would slowly die out.
HELPPPPPPPPP PLEASEEEEEEEEEEEEEEEEEEEEEEE. PLEASEEEEEEEEEEEEEEEQuestion 2 Multiple Choice Worth 4 points)
What molecule is represented by the molecular model shown below?
O Glucose
O Adenosine triphosphate (ATP)
O Adenosine diphosphate (ADP)
O Starch
Answer:
Adenosine diphosphate (ADP)
Explanation:
because i know