Which of the following actions would you take to remain safe in the lab?
Check all of the boxes that apply.
A bottle of liquid looks like water; you taste it to be sure.
While cutting a screen for an aquarium top, you point the scissors away from your body.
You pipette a liquid using a bulb pipette.
You heat a liquid by placing it in a plastic beaker on a hot plate.
You arrange all lab items neatly and make sure they are away from the edge of the lab table.
You arrange all lab items neatly and make sure they are away from the edge of the lab table.
You pipette a liquid using a bulb pipette.
The following guidelines should be included in most safety policies because they apply to practically all laboratories. They go on emergency preparedness, appropriate signs, safety gear, how to use lab equipment properly, and fundamental common sense standards.
Make careful to read any safety and fire alarm signs, and in the event of an accident or emergency, heed the directions.Make sure you are completely informed of the evacuation protocols for your building or facility.Make sure you are familiar with the location and proper use of all of the safety supplies in your lab, including eye wash stations, fire extinguishers, first aid kits, and safety showers.Be aware of the emergency phone numbers to call for assistance.Lab spaces with lasers, radioisotopes, and other biohazards need to be adequately labeled with warning signs.When working in the lab, avoid eating, drinking, and chewing gum.Never use laboratory glassware as a container for food or drink.Make sure to inspect your glassware for chips and cracks before each usage. Glassware that is broken should be reported to your lab manager so it can be disposed of properly.Never utilize lab equipment that you have not been given permission or been taught to use by your supervisor.Inform a technician as soon as possible if an instrument or piece of equipment malfunctions while in use or isn't functioning properly. Never attempt to fix a piece of equipment by yourself.
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hey can you help me with some questions
Answer: i need this answer also
Explanation:
Will award 70 points asap!!n is the answer 24,12?
If a cell in G1 has 12 chromosomes, then in G2 there will be _________ sister chromatids, and __________ chromosomes after mitosis.
Answer:
g2 will have 24 and 12 chromosomes
Explanation:
A recent clinical study demonstrated a possible connection between coffee consumption and heart health. The researchers performed
a 6-week trial with 191 individuals, all of whom were heavy coffee drinkers (average of 5 cups/day) prior to the experiment, but none of
whom were smokers. They divided the 191 participants into three groups: no coffee consumption, 1-3 cups/day, and 4 or more
cups/day. They measured blood levels of cholesterol and homocysteine as indicators of heart health Only the no-coffee group showed
a significant drop in both indicators. Previous studies had demonstrated that decreases of the magnitude observed in the no-coffee
group could cut the incidence of heart disease by 10-15%.
a) What is the problem/question being studied?
b) What is the hypothesis?
c) What is the experimental variable?
d) List the controls
e) What is being measured to test the hypothesis?
Answer:
The summary as per the issue is summarized in the following portion of the clarification.
Explanation:
(a)
The association regarding coffee intake and insulin sensitivity is being tested and the results. This procedure is intended to examine whether unnecessary coffee intake is positive or negative again for the heart. Or if there are any cardiovascular problems it may induce.(b)
The hypothesis seems to be the consequence of such a hypothesis. This illustrates inside such an outcome the association between the factors and response variable. It is stated to provide an understanding of the experiment's response.(c)
Any conditions that may be adjusted, calculated, or influenced during an analysis constitute variables. Three research variables have become primarily present. Variable autonomous, variable dependent including variable power. They are those variables that can only be modified in an experiment by a researcher. Independent variables are essentially the cause for the effect, as well as a shift of independent variables impacts the variables (dependent) accordingly.The independent variable throughout this analysis is the number of coffees, in which 3 categories are given separate amounts of cups of coffee. The researcher decides the coffee which should be offered to all the participants.(d)
Through an analysis, monitoring variables are those variables most of which are maintained stable. Variables under regulation throughout this experiment include body temperature, ambient moisture.(e)
To verify the theory, the ratio of cholesterol including homocysteine throughout the blood would be calculated. The theory indicates that a rise in cholesterol levels, as well as homocysteine levels, can be caused by increased coffee intake, thus raising their risk of cardiovascular diseases.Use the drop-down menus to complete each statement.
During the
trimester, the fetus rapidly gains weight.
During the
trimester, the fetus’s sex organs develop.
The umbilical cord forms during the
trimester.
The lungs do not develop until the
trimester.
Answer:
Third, First, First, Third are your answers.
Explanation:
Cause they are.
According to the question the answer as follow:
The umbilical cord forms during the trimester.During the trimester, the fetus rapidly gains weight.The lungs do not develop until the trimester.During the trimester, the fetus’s organs develop.Is a fetus a baby?After the embryonic period has ended at the end of the 10th week of pregnancy, the embryo is now considered a fetus. A fetus is a developing baby beginning in the 11th week of pregnancy.
Thus, these are the answer.
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I need help with these two questions
Organic molecules are sometimes found within meteorites that crash into Earth Which meteorite condition in space is similar to what most likely was present
Earth's early atmosphe
Abundance of oxygen
Very cold temperatures
Presence of inorganic molecules
Low levels of ultraviolet radiation
its presence of inorganic molecules- hope this helped, good luck!
Answer:
c
Explanation:
diffusion and osmosis are both forms of
a. organelles
b. channel proteins
c. active transport
d. passive transport
Answer:
D
Explanation:
Diffusion and osmosis are both passive forms of transport because there is no energy need to transport something such as water from an area of high pressure, to an area of low pressure.
Which of the following measurements is the most precise?
165mg
O 164.5mg
164.47mg
Answer:
164.47mg
Explanation:
Precise means the most accurate
A group of parts that work together is callede. A. Technology.
B. process
C. system
D. feedback help me please
Answer:
C i think
Explanation:
The surface of rivers freeze when the temperatures falls below freezing. However, the water underneath this layer of ice continues to flow. This phenomenon allows fishermen to fish through holes drilled in the ice the entire winter. Which property of water is the reason the river doesn't freeze completely?
Answer: Water retains its temperature for long.
Explanation:
The ice floats on the water of river as it is less denser then the liquid water. This causes ice to float on water. It protects the water at the bottom from freezing. The decrease in the temperature level can cause the death of the marine life by catching organisms in the ice. The floating of the ice insulates the water present beneath. So, the fish and other aquatic animals can survive and the fishermen can catch the fishes alive.
Answer:B hydrogen bonds expand during the freezing process
Explanation:
Which list places the layers of the sun in the correct order from innermost to outermost?
Corona, photosphere, chromosphere
Photosphere, convective zone, radiative zone
Convective zone, chromosphere, corona
Radiative zone, corona, convective zone
(the third choice is wrong)
Answer: The inner layers are the Core, Radiative Zone and Convection Zone. The outer layers are the Photosphere, the Chromosphere,
Explanation: Hope this helped! :)
all living things have this molecule, it has all the information a cell needs
Answer:
gene.Genes are made up of DNA.
Explanation:
Pleaseee hellpppppp!!!!
Answer:
C
Explanation:
hope this helped and yes im postitive
7. a) Protein molecules are the building blocks of the body. They are made up of long chain
amino acids. Draw the general structure of an amino acid. (1 points)
HINT: Think about the carboxyl group, amino group, and side chain
Answer:
....................
Explanation:
Except for water as well as fat, this same human species comprises essentially completely composed of protein.
Proteins are generally made up of some acids such as Amino, which have been tiny chemical compounds made up of either an alpha carbonyl group coupled to something like an amino group, a carboxylic acid group, another hydrogen ion, as well as a response to changes known as nothing more than a chain length.Muscles contain around 80% proteins, eliminating fluid, trying to make essential nutrients extremely vital for athletes.
Thus the above response is appropriate.
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This illustration represents what compound
carbon wide
B
carbon dioxide
carbon monoxide
D
monocarbon acide
Answer:
carbon dioxide
Explanation:
This is a molecule of carbon dioxide. There is one carbon atom and two oxygen atoms. The prefix di- means two.
Can someone answer this please?
What does Spectral Class mean?
(In your own words)
Answer:
A group in which a star is classified according to its spectrum.
I hope this helped some!
Answer:
It basically means the stars are classified based on their spectral characteristic. hope this helps
Is true or false forming a hypothesis is the first strip of the scientific method
Answer:
FALSE
Explanation:
bcz the first step is to recognise the question or a problem.
second is observation to the problem
and then the hypothesis formulation comes
hope it helps :)))
Metabolism is a term used to describe all the chemical processes that go on
continuously inside an organism to maintain life and the proper functioning of organs.
Examples include breathing, repairing cells and digesting food. These chemical processes
require
stimuli
responses
changes over time
energy
what is the major nitrogen nous waste in humans
Explanation:
urea
SUMMARY. Two major nitrogenous waste products, urea and ammonium (NH4+), are produced in humans when proteins are oxidized, and in this manuscript their excretions are examined from two perspectives.
explain how the energy producing processes occurring in the cells of organisms drives the cycling of matter within an ecosystem
Answer:
The flow of energy and cycling of matter can be traced. The chemical reaction by which plants produce complex food molecules (sugars) requires an energy input (i.e., from sunlight) to occur. In this reaction, carbon dioxide and water combine to form carbon based organic molecules and release oxygen
Like nutrients and water, energy also recycles through an ecosystem,True Or False?
Answer:
Explanation:
True
How does crop rotation benefit the soil?
A)makes no difference to the soil
B)helps return nutrients to the soil
C)it doesn't - it depletes the soil of nutrients
Answer:
B) Helps return nutrients to the soil
Changing the shape or morphology of the mitochondrial inner membrane can change the efficiency of mitochondrial function.
Which of the following outcomes will most likely result from a change in the shape of the mitochondrial inner membrane from a highly folded surface to a smooth, flat surface?
Since, the options have not been given the question is incomplete the complete question is as follows:
Changing the shape or morphology of the mitochondrial inner membrane can change the efficiency of mitochondrial function.
Which of the following outcomes will most likely result from a change in the shape of the mitochondrial inner membrane from a highly folded surface to a smooth, flat surface?
A. Mitochondria will become more efficient because the inner mitochondrial membrane will become more permeable to ions.
B. Mitochondria will become more efficient because the total volume of the mitochondria will increase.
C. Mitochondria will become less efficient because the inner mitochondrial membrane will become less permeable to large molecules.
D. Mitochondria will become less efficient because the surface area of the inner mitochondrial membranes will decrease.
Answer: D. Mitochondria will become less efficient because the surface area of the inner mitochondrial membranes will decrease.
Explanation:
Mitochondria is called the power house of the cell as it produces energy by the oxidation of food in the form of adenosine triphosphate or ATP. The inner mitochondrial membrane comprises of numerous folds which are called cristae which increases the surface area for the chemical reactions necessary for the production of energy. If the folding increases the surface area for energy production will decrease as the surface area for chemical reactions will decrease. Thus the efficiency of mitochondria will decrease.
If the mitochondrial inner membrane becomes flat or smooth surface then this also decreases the surface area for chemical respiration, thus in this case too the efficiency of mitochondria will decrease.
im doing this last minute sorry y'all-
Answer:
A gas giant. These are planets that are mostly made of gas, such as hydrogen and helium.
Explanation:
What conditions are needed to make a seed germinate?
please answee it
and thank you
Answer:
Air, water, and warmth
Explanation:
pls mark me brainlesssss
Linnaeus developed two groups for classifying organisms: genus and .
Answer:
Species
Explanation:
Carl Linnaeus was a Swedish scientist who developed a formal system of naming organisms- bionnomial nomenclature
The first part of the name identifies the genus to which the species belongs, and the second part identifies the species within the genus.
For example the tiger is called "Panthera tigris". The species is tigris (tiger).
The genus is Panthera (which also includes the lion (Panthera. leo), the jaguar (Panthera onca), and the leopard (Panthera pardus). The species is "tigris"
Answer:
Species
Explanation:100% on my test
If anyone can answer all of these, they deserve big thanx!
Last questions of the night, I also need these before 12am and it’s almost 12!
Answer:
#4 177.5
Explanation:
add all the numbers and divide by 6
carbon has 4 electrons in the outer shell .how does carbon attain stable electrons configuration!if ur answer it points + i wil mark as brainlist so dont miss it..
Answer:
thanks!
Explanation:
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