A teacher gave the lab group shown below an "unsafe practice" warning. What is most likely the basis for the teacher's warning?

Answers

Answer 1
The teacher warning could be the practice you are about to do can harm you in some way if that careful. Please let me know if I'm understanding this.

Related Questions

Water is denser than isopropanol, so the water layer will always be below the isopropanol layer if they are both in the same container. What does this tell you about the make-up of the pigments for each specimen?

Answers

Answer:

One is polar and the other is non-polar.

Explanation:

The makeup of both water and isopropanol is different from each other due to their polar nature. Water is a polar substance means that it makes poles i.e. positive or negative while on the other hand, isopropanol is non-polar substance so due to this reason water and isopropanol make different layers. If both are polar or nonpolar substances so they will able to mix with each other.

PLEASE HELP!!! Give two forms of evidence for evolution that can be found in the fossil record (where animals have changed from simple to more complex.)

Answers

Answer:

Forms of fossil records can inlude the carcasses of animals and the structure of plants. These records can compare the advancements of creatures over a long period of time.

Explanation:

The further an animal or plant is burried underneath the soil, it is most likely that it lived much longer ago than a layer above it. The theory of evolution suggests that animals are always changing and adapting to their surroundings. For instance, millions of years ago, a dog like mamal existed but over time they grew accustomed to the water, developing fins flippers and eventually developed features similar to what we expect in whales today.

Plants, on the other hand, may have been much larger than the size they are today due to the excess of oxygen present in the atmosphere. Therefore, when they are fossilized scientists can realize that plants have come a long way in the tree of evolution.

what is the organ that bryophytes use for absorb of water​

Answers

Answer:

The answer is Rhizoids ok

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what attribute of skeptic would contribute to a good scientific mind​

Answers

Continual questioning of observations.

Cigarette smoke contains carbon monoxide. Explain how this
would affect the normal functioning of red blood cells in a person who
smokes cigarettes.

Answers

Answer: Carbon Monoxide is a very harmful and toxic gas which is formed from incomplete combustion of carbon.

Explanation: red blood cells contain haemoglobin ,which are responsible for carrying oxygen into our body system. So oxygen combines with haemagoblin to form oxyhaemogoblin in the red blood cells .

so if a person starts to intake cigarettes which contain high amounts of carbon monoxide ,it reduces oxyhaemogoblin formation because it binds very tightly to the haemogoblin .then carboxyhaemogoblin is formed and its permanent so causing reduction in aerobic respiration, and reduction in oxygen transport and causing damages to heart muscles.

Hope this helps if you need any more explanation feel free to comment in the comment section below !!!

Microorganisms are classified as bacteria, fungi, protozoa and algae. Viruses are
not explicitly categorized as microorganisms. Give reason.

Answers

Answer:

Yes

Explanation:

Because they have both living and non living characteristics so it is hard to classify them as they posses living characteristics as reproduction and others when inside the host and posses non living characteristics when outside the host

In microorganisms micro means small and organism means living ones, so those living ones which are not seen without the help of a microscope, are microorganism.

What are viruses?

Viruses are obligate parasites and are very small in size. Viruses cannot live outside the host cells as they require host cell gene expression machinery to divide and perform metabolic reactions. Viruses remain inactive in the environment until found the host cells.

As viruses cannot qualify the criteria of living beings because they cannot survive separately in the evnironment,  that's why cannot be considered living organisms.

Mostly microorganisms are single-celled organisms like bacteria, fungi, and protozoa. Viruses are not considered microorganisms because they are nonliving outside the host body.

Learn more about viruses, here:

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What was spidermans mutagen ?

Answers

Answer:The mutation disease was the result of Spider-Man mutating even further from the spider bite. The first symptoms of the disease caused Spider-Man to lose his spider powers. To figure out what was going on, Spider-Man went to see Dr. Curt Connors.

Explanation:

Answer:The mutation disease was the result of Spider-Man mutating even further from the spider bite. The first symptoms of the disease caused Spider-Man to lose his spider powers. To figure out what was going on, Spider-Man went to see Dr. Curt Connors.

What part of the joint cavity lubricates the joint, supplies nutrients, removes metabolic wastes, and absorbs shock

Answers

Explanation:

The synovial capsule which secretes synovial fluid which lubricates the joint,absorbs shock etc

It is the highest level in the modern taxonomic classification system

Answers

Answer:

Domain

Explanation:

The domain is highest level in modern taxonomic classification system.

❗️❗️❗️URGENT - HELP PLEASE ❗️❗️❗️

Answers

Answer:

C 5√32 = 2

Explanation:

When converting to radical form using the formula [tex]a\frac{x}{n} = \sqrt[n]{a^{2} }[/tex] the outcome in the exact form comes out as [tex]\sqrt[5]{32}[/tex] and its decimal form from this equation is equal to 2.

What is not one of the 3 major areas of society affected by science

Answers

Answer:

biology

Explanation:

Answer:

D.

Explanation:

Justice

Hope it helps

Which factor plays a central role in determining which of the brain's synapses will be eliminated and which will be maintained?

Answers

Answer:

The answer is "frequency with which they are activated".

Explanation:

Frequency refers to the number of consecutive repetitive events per unit time. It is measured in hertz (Hz), equivalent to a single event per second. The time is the number of one cycle in a recurrent event, and so the duration is the same for the frequency, hence the frequency at which they are triggered is a key determinant of the brain's connections to be eliminated and maintained.

Which of the following is NOT a unifying theme in biology?
A. All levels of life have systems or related parts.
B. Structure and function are not related in biology.
C. Organisms must maintain homeostasis to survive diverse environments.
D. Evolution explains the unity and diversity of life.

Answers

I think the answer is A

Which wound usually involves ears, fingers, and hands, and results in tearing or pulling off of a flap of skin

Answers

Answer:

Avulsion.

Explanation:

Human bite wounds are blunt wounds, sometimes with partial or total avulsion (ear, lips, nose, hands) and with intense contamination. An avulsion is a complete tear of the skin and subcutaneous tissue. It does not allow the approximation of edges. It presents moderate to abundant hemorrhage and is accompanied by the exposure of underlying tissues (bone, tendon). The tear can be complete or partial; in the latter case, a connection or bridge is preserved between the torn tissue and the rest of the body.

the pressure of x mL of a gas was increased from 2 atm to 3 atm at constant temperature. what will be the new volume?

Answers

Answer:

Answer

0

bribeeplayz

   Ambitious

   66 answers

   1K people helped

Answer:

P

1

V

1

T

1

=

P

2

V

2

T

2

Explanation:

P

1

V

1

T

1

=

P

2

V

2

T

2

, given a constant quantity of gas.

And thus,  

P

1

×

V

1

×

T

2

V

2

×

T

1

=

P

2

, even given this format, we can see the problem is dimensionally sound. We do need to use  

absolute temperature.

P

2

=

1.00

a

t

m

×

250

m

L

×

313

K

500

m

L

×

293

K

1

2

a

t

m

.

Explanation:

Which statement about inheritance is true?
Girls get most of their traits from their moms; boys get most of their traits from their dads.
Male offspring will always have an X-linked genetic disease if the mom is a carrier.
Fathers always determine the gender of the offspring in humans.
Males never have Y chromosomes.

Answers

Answer:

The correct answer is the third statement.

Explanation:

In humans, the males possess one X and one Y chromosome, while the females possess two X chromosomes. Thus, the female always donates X chromosome to the gamete. In any case, the female always generates a similar kind of gamete. While the male either pass X or the Y chromosome to the progeny.  

When the gamete with the X chromosome combines with the female gamete than the offspring would possess XX chromosomes and will be a female. On the other hand, when the gamete comprising the Y chromosome combines with the female gamete than the offspring would possess the XY chromosome and will be a male. Thus, it is the father who determines the gender of the offspring.

Wrong answersGirls get most of their traits from their moms; boys get most of their traits from their dads.

This is wrong. Parents gender does not affect traits passed on.

Males never have Y chromosomes.

This is wrong, Males have to have a Y chromosome. (XY)

Male offspring will always have an X-linked genetic disease if the mom is a carrier.

This is wrong. The male offspring have a 50/50 chance if the mother is a carrier, if she has the deseace than all the sons will have the decease.

Correct answerFathers always determine the gender of the offspring in humans.

This is because the mom is XX and the dad is XY. The mom gives the X in the gene, and the dad gives the X for daughters (X,X) and gives the sons a Y (X,Y) Males are always XY.

If the mom is a carrier, h,  then it will get passed down  50% of the time, and when it gets passed down to the males, they wiill have the deseace. If the mom passes the deacease down to the daughters, 50% will be a carrier too if the dad does not have the deseace. If the dad has the deacease, than 50% of the daughters will have the deacease, and the other 50% will be carrier, and still, 50% of the sons will have the deacease, while the other 50% will be completely clean. So in total 25% of the offspring will be a carrier, 50% will have the deacease, and the other 25% will not have the deacease or be a carrier.  

1. the movement of water into area with high concentration of dissolved solutes in order to equal out the solute concentration is
a) concentration
b) diffusion
c) osmosis
d) blood oxygen level​

Answers

I think the answer is osmosis.

Explanation:

The principle of osmosis states that when a semipermeable membrane separates two fluid spaces, water will flow from an area of lower solute concentration to one of higher solute concentration to achieve equilibrium so that the osmotic pressures are balanced.

True or false? Recent genetic evidence indicates that there may be—in the roots of some plants—a response stimulated by the concentration of water in the soil.
Group of answer choices

False

True

Answers

I think it will be false only as I have readed in my sister book FALSE

Answer:

I think the answer is false.

Explanation:

I hope this helps

Limestone, which contains the mineral calcite that fizzes in weak acid, may change
due to heat and pressure into the metamorphic rock marble. What characteristics
would you expect the marble to show?

A: it would show fossils.
B: It would not fizz in acid.
C: It would have stripes.
D: It would fizz in acid.

Answers

Answer:

D: It would fizz in acid.

Explanation:

Marble is a limestone & will have an acid reaction that is similar to the limestone from which it was formed.

Answer:

yup  

A: it would show fossils.

B: It would not fizz in acid.

C: It would have stripes.

D: It would fizz in acid.

Explanation:

Which structure is directly involved in gas exchange?
ESSE
O trachea
pharynx
O alveoli
O bronchi

Answers

Answer:Alveoli

Explanation:cause I got it wrong from someone else

Where does the first stage of cellular respiration occur?
Use this diagram of an animal cell to answer the
question
OW
OX
OY
OZ

Answers

Answer:

Z

Explanation:

The first stage of cellular respiration is called GLYCOLYSIS, where glucose is broken down into pyruvate. Because glycolysis occurs irrespective of whether there is oxygen or not, it occurs in all organisms. Hence, glycolysis occurs in the CYTOPLASM of their cell.

In this question, a diagram was given as an attachment. In the diagram, letters W, X, Y amd Z are used to represent organelles in the cell. Letter Z represents the cytoplasm, hence, the first stage of cellular respiration takes place in Z.

Answer: Z

Explanation: READ

Explain how sunlight is the primary source of energy for your own life

Answers

Answer:

Sunlight helps in the process of photosynthesis where plants are able to make their own food. Plants are also source of food and they also provide oxygen for humans and animals to breather

Explanation:

I hope it helps you

Archie took several deep breaths of air. By breathing deeply, what mechanism did he assist to return venous blood to his heart

Answers

Answer: Respiratory pump

Explanation:

By breathing deeply, the mechanism that Archie did hessist to return venous blood to his heart.

During the process of inspiration and expiration when the muscles contract and relax, pressure changes takes place in both the thoracic and abdominal cavities and this changes compress the nearby veins and help im the return of blood to the heart.

Does humus contain rocks? 20 points.

Answers

Answer:

Yes

Explanation:

Humus contain very small rocks, it is the upper part of the soil, it includes remains of dead plants and animals.

Hope it helps!

I'm a beginner to Brainly!

WHAT AARE UNICELLULAR ORGANISM

Answers

Answer:

Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism

Answer:

A unicellular organism, sometimes known as a single-celled organism, is a single-cell creature, as opposed to a multicellular organism, which has many cells. Prokaryotic organisms and eukaryotic organisms are the two types of unicellular creatures.

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hope it helps...

have a great day!

You are examining the data from two time points taken in an experiment. At time 1 there was an extracellular concentration of Na of 115 mM outside the cell and 8mM inside the cell. An amino acid, lycine, is at 20mM outside and 40mM inside. At the second time measured Na is 100mM outside the cell and 23 mM inside the cell. Lycine is 15 mM outside the cell and 45mM inside. What is the best explanation

Answers

Answer:

See the answer below

Explanation:

The best explanation would be that both Na and the amino acid lycine are simultaneously diffusing (in bound form) from the outside to the inside of the cell.  

Considering the Na alone, one would see that the concentration outside the cell decreased in equal amount (15 mM) as the increase in the intracellular concentration of the same molecule.

Also considering the amino acid alone, the extracellular concentration increased by the same magnitude (5 mM) as the decrease in the intracellular concentration of the same molecule.

Hence, it could only be that both molecules bind together and diffused from the region of higher concentration (outside of the cell) to the region of lower concentration (inside).

(06.01 MC)
When Linnaeus began classifying organisms in the 1700s, he categorized them as plant, animal, or mineral. These kingdoms were later revised to exclude minerals and expanded to include animals, plants, fungi, protists, and bacteria. Which of the following best explains a reason for this change? (2 points)

Group of answer choices

As new organisms were discovered, new kingdoms were created to sort them based on ability to interbreed.

It was discovered that the organisms in each of the five kingdoms have a different method of obtaining nutrients and are therefore fundamentally different.

Technological advances led to the discovery of single-celled organisms and increased our understanding of relationships between organisms.

Genetic research led to the discovery that each of these five kingdoms has a unique evolutionary ancestor.

Answers

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At the back of the brain is the __________ which is primarily responsible for processing information about light and movement

Answers

Answer:

Cerebellum

................

does the gut flora affect digestion?

Answers

Answer:

Yes.

Explanation:

Our bodies need different organs to regulate our bodily functions, and the gut is no different. The gut flora helps us digest and break down the food we eat, along with producing various enzymes that help to break down carbohydrates. Also, after the carbohydrates are broken down, they can pass through the gut wall into the blood (just a little fun fact). The gut also helps to benefit our immune system. One last bit of information is that an imbalance of bacteria and microbes in our bodies may lead to weight gain, high blood sugar, high cholesterol, and many other terrible issues. Please let me know if you still need help and I hope this made sense!

Discuss the impact of development planning for economic development for a development country like Pakistan under what circumstances a country should go for short term medium term and long term plan (it is a economics question)

Answers

Answer:

Great impact.

Explanation:

There is a great impact of development planning for economic development for a country because this development planning is important for the growth of economy of the country. Without planning, goals of better economy can not be accomplished. A country should go for short term plan in order to solve the economic problem at that time while on the other hand, medium and long term plan is used by the country in order to solve the economic problem completely.

Other Questions
find the surface area of the triangular prism below. You need to build a box from an 8 inchby 10 inch piece of cardboard. To do this, you cut out squares of length x from the four corners of the box in order to fold the sides up. Verify that the volume of the box is given by the equation:V= 4x^336x^2+ 80x If 4 tickets to a show cost $17.60, what is the cost of 7 such tickets. Pls Help Asap!Write a paragraph that explains your view on what the most important new idea from the 1950s was, and how it impacts life today. 710 to the power of -5 in standard notation! Please include an explanation! Thank you! Three jackets cost as much as five shirts. Each jacket costs $16 morethan each shiri. What is the cost of one shirt? name three characteristics of a short story. Name three types of conflict found in stories. Name the three types of characters and a brief description of each one. What two conditions make up the setting of a short story? Line JK passes through points J(3, 11) and K(1, 3). What is the equation of line JK in standard form?7x + 2y = 17x + 2y = 114x + 4y = 114x + 4y = 1 In which section of land were the British encouraging American Indians to fight American settlers CAN SOMEBODY HELP WITH THIS QUESTION ASAP Angles 1 and 2 are supplementary. 2 lines intersect to form angles 1 and 2. Which equation represents the relationship between their measures? Franklin D Roosevelt believed regional economic development like that in the Northwest (i.e the Grand Coulee Dam) would promote economic growth, ease the domestic and working lives of ordinary Americans, and keep control of key natural resources in public rather than private hands. The early Roosevelt administration spent far more money on building roads, dams, airports, bridges, and housing than any other activity.- because of the New Deal, "liberalism" came to define a government that actively tried to uplift those in need instead of a free-market economy and limited government- ND also made people focus on economic security as a part of American freedom. ND measures included the Social Security Act & Fair Labor Standards Act.- the ND expanded freedom, but still not to all- Democratic Party was united by FDR in the 1930s what are applied areas of mycology? which statement describes a process associated with meiosis Economy Hardware Store ordered items retailing for $2,500. They received a chain discount of 20/5/2. Find the net cost. |a-7| - |a-9| if a A rectangle with the dimensions of 2 feetby 8 feet is similar to a rectangle with thedimensions of 4 feet by 16 feetB. 6 feet by 12 feetC 12 feet by 32 feetD 22 feet by 28 feet A reviewer described a dancer as supple. What did the reviewer mean?A). The dancer was flexible and moved easily.B.)The dancer seemed distracted.C).The dancer was lacking in experience.D).The dancer performed je rk ily. All enzymes which catalyze the chemical reactions of a cell are a. carbohydrates b. lipids c. long-chain fatty acids d. proteins e. ribonucleic acids no another by differences in An important sustainability issue that has received much more scrutiny in recent years is the: focus on adequate inventory levels. reduction in packaging waste by using alternate materials. effort to move warehouse storage closer to consumers. emphasis on materials handling and warehouse design. none of the above