what is the importance of the sense of smell when we are in the science loboratory​

Answers

Answer 1

Answer:

because some chemical reactions release gases which may be odourless or may have smell, in order to identify it it is necessary to have a good sense of smell.

Answer 2
Smell is vital for survival of most humans and animals as it enables them to track food and water, find a mate and even communicate. Although our sense of smell is not as acute as other animals we know that humans are able to detect up to 10,000 different odor molecules.

Related Questions

Nerve cells release neurotransmitters across gaps and secretion of proteins and wastes:

Facilitated Diffusion
Endocytosis
Diffusion
Exocytosis

Answers

Nerve cells release neurotransmitters across gaps and secretion of proteins and wastes: it’s Exocytosis

the concentration of solute outside of the cell are_____than the inside of the cell
What happens to a cell in a hypertonic solution

Answers

Answer:

If you place an animal or a plant cell in a hypertonic solution, the cell shrinks, because it loses water ( water moves from a higher concentration inside the cell to a lower concentration outside ). A single animal cell ( like a red blood cell) placed in a hypotonic solution will fill up with water and then burst.

Prokaryotes are better known as __________.

Answers

Prokaryotes, better known as bacteria, possess no nucleus and no advanced cellular machinery. They are unicellular and are only a small fraction of the size of a plant or animal cell.

PLEASE HELP I WILL MARK BRAINALIST

Answers

Answer:

i think it is A

Explanation:

Answer:

it is for sure A

Explanation:

What is the main function of meiosis?

A.

to produce gametes for sexual reproduction

B.

to produce more body cells within an organism

C.

to produce a clone of an organism in asexual reproduction

D.

to produce more embryonic cells following fertilization

Answers

The answer for this should be D

Answer:

B

Explanation:

all you need is in the photo

ASAP

Answers

Answer:

It is translation

Explanation:

The translation is the process of protein synthesis where the information on RNA is expressed in the form of polypeptide chains.

Answer: transcription

Explanation:

In the experimental set up above there are bubbles being
produced. What gas would be inside the bubbles?

Answers

Answer:

carbon dioxide

Explanation:

Yeah the answer is
Carbon dioxide

Which of these is a mechanical wave?
Olight
O sound
O gamma ray
O electromagnetic

Answers

Answer:

sound

Explanation:

What are some living and non living things that change mountains over time?

Answers

Answer:

Rocks are important to the mountain ecosystem they can provide homes for animals like Pika and Ermine. Pika and Ermine can live in stacks of rocks. Soil is also important, it can provide homes for example Ermine can live in burrows. Another non living thing that helps the mountain ecosystem is water.

Explanation:

(GIVING BRAINLIEST!!)

Which reservoir is found underground in the cracks and spaces in the soil, sand, and rock?

A) Glaciers
B) Ground water
C) Polar ice caps
D) Rivers

Explain Why

Answers

The answer is ground water
Explanation: first of all, it is in the name. Ground water is water that is found in the ground. Another idea to find the answer would be to do process of elimination.
A glacier is a moving mass or river of ice that is mainly found in Antarctica and Greenland. Polar ice caps are regions that are covered in ice. A river is a natural flowing source of water that flows towards an ocean, sea, lake or another river. Ground water is water located beneath the Earth’s surface and can be found in cracks and rock formations. By doing process of elimination, you can easily cross out the possibility that the answer is glaciers or polar ice caps because they both have something to do with ice. This leaves you with rivers and ground water. You can eliminate rivers because rivers can’t fit into cracks and spaces in the soil. This leaves you with your answer of ground water.

Answer:

ground water

Explanation:

In humans, ____ are used to move a cell within its environment while _____ are used to move the environment relative to the cell

Answers

answer answer answer answer

please help! Out of the 100 cells shown, how many are in the process of dividing?

Answers

Answer:

I think 7 cells are going to divide

Answer:

13?

explanation

When a person doesn't get enough sleep, their immune system:
A Becomes stronger
B Becomes weaker
C Gains autoimmunity
D Can't remember diseases

Answers

Answer:

becomes weaker

Explanation:

because if you stay up all night you might sick

Explanation:

When a person doesn't get a enough sleep, their immune system can become weaker.

I hope this helps you.

You would most likely find ants living in hollow spaces without causing harm to the plant in which of the following?
A)
epiphytes
B)
browses
C)
myrmecophytes
D)
folivores
E)
hedgerows

Answers

Answer: The correct option is C.

myrmecophytes.

Explanation:

This is because ants and myrmecophytes have mutualistic relationship in which the plants provide food, and accomodation to the ants through the structural adaptations of plants like dormatia, fruiting bodies, nectaries flowers. The ants inturn ahelp the myrmecophyte in pollination, seed dispersal, to defend it against Intruders and also help it to gather nutrients.

5. What are the range and median of this data set?
16, 10, 24, 12, 9, 14, 11, 14, 21
A. range = 5, median = 9
B. range = 5, median = 14
C. range = 15, median = 9
D. range = 15, median = 14

Answers

Answer:

c

Explanation:

The answer is c

Range and median of this data set 16, 10, 24, 12, 9, 14, 11, 14, 21When a list of numbers is arranged from smallest to largest, the median is the middle number, hence option C is correct.

What are the range and median?

The median of these outcomes. The range, in this case, is, where the range is the difference between the lowest and highest values.

Take the sum of all the numbers and divide it by the total number of numbers in the list to get the value of the mean.

Calculate the mean by adding up the center values and dividing them by two in order to determine the median.

Therefore, 16, 10, 24, 12, 9, 14, 11, 14, and 21 in the data set range are equal to the highest number minus the lowest value, hence option C is correct.

Learn more about the median, here:

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What happens next after the ribosome reaches the start codon?

Answers

Answer:

tRNA molecules attach to codons.

When the mRNA is used by ribosome, ribosome requires the AUG codon to find where to start the synthesis of the protein. After "initiation", the ribosome will slide to the first AUG and there it will start the synthesis.

How long does it take you to drive 500ft?

Answers

Answer:

at what speed are you going?

What’s the speed per hour then you can find it out

Who was the first to try vaccination (NOT VACCINE BUT THE SIMILAR METHOD)

Answers

Answer:

Traditional Indian and Chinese medicinal

systems sometimes deliberately rubbed the

skin crusts from smallpox victims into the

the skin of healthy people. They thus hoped to

induce a mild form of smallpox that would

create resistance against the disease.

Answer:

Traditional Indian and Chinese medicinal

systems??

Imagine you accidently step on a sharp object with
your bare foot.
Explain how the parts of the peripheral nervous
system work with the central nervous system to
produce a response to the stimulus

Answers

Answer: receptors in the skin stimulate sensory neurons

Sensory neurons send messages to the central nervous system

Interneurons send messages to the motor neurons in response to messages received from sensory neurons

Motor neurons cause muscles in the leg to contract and pull the foot away

Explanation:

To produce a response to the stimulus, receptors (sense organs, muscles, glands, etc.) receive stimuli from the environment and from inside your body.

How peripheral nervous system works with the CNS?

To produce a response to the stimulus the central nervous system processes information, it is the information that is received from the peripheral nervous system.

After that, the central nervous system sends this processed information to the peripheral nervous system. The peripheral nervous system sends a signal to the body part that needs to respond so you can react appropriately to the stimulus.

Therefore, if you accidentally step on a sharp object with your bare foot the peripheral nervous system work with the central nervous system to produce a response to the stimulus through receptors.

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3. After learning about chemical reactions, Olivia investigated different
kinds of chemical changes using substances she found in her kitchen
so she could see these changes. Which of the following can occur when
a chemical reaction takes place? Choose the three statements that
apply.

Answers

Answer:

ABC

Explanation:

Lets say baking soda and vinegar when they react there is a chemical reaction where bonds break and from changing it into a new compound no longer just baking soda and vinegar.

(03.03 MC)

How would the Coriolis effect alter movement of an air mass flowing from a higher to a lower latitude in the Northern Hemisphere?

Select one:
a. It would deflect the path of the air mass to the east. Incorrect
b. It would deflect the path of the air mass to the west.
c. It would deflect the path of the air mass to a lower altitude.
d. It would deflect the path of the air mass to a higher altitude.
(03.02 LC)

Which of the following would provide the best assessment of the fertility of a soil?

Select one:
a. O horizon
b. A horizon
c. B horizon Incorrect
d. C horizon
The diagram below represents a convection cell. The arrows indicate the direction of air flow:

Diagram showing Hadley Cell located north of the equator. The air in the Hadley Cell flows counterclockwise. Label A is located below the equator. Label B is located at the equator. Label D is located above the equator and parallel to the top of the Hadley Cell. Label C is located between B and D. Label E is located above Label D.

The letters represent particular latitudes. At which latitude would you expect to find the driest average conditions?

Select one:
a. A Incorrect
b. B
c. C
d. D
A La Niña can be described as

Select one:
a. warmer than usual waters in the Atlantic waters
b. cooler than usual waters in the tropical Pacific
c. warm waters traveling eastward toward South America
d. cool waters causing colder than normal temperatures in the Southeast Incorrect

Answers

Answer:

D

Explanation:

I think so

1. Coriolis effect would deflect the path of the air mass to the west.

2. A horizon would provide the best assessment of the fertility of a soil.

3. Label E is located above Label D.

4. A La Niña can be described as cooler than usual waters in the tropical Pacific

The correct options for 1, 2, 3 and 4  are B, B, D and B respectively.

The Coriolis effect is the deflection of moving air (or an object) due to the Earth's rotation. The air moving in the northern hemisphere is deflected to the right of its intended path due to the Coriolis effect. As a result, in the Northern Hemisphere, air masses traveling from high to low latitudes will be deflected west.

The A horizon, commonly known as the topsoil, contains the most organic matter and nutrients, making it the most fertile layer of soil. This is the layer in which organic components such as degraded plant matter and humus interact with mineral particles to provide an optimal environment for plant growth.

The location at latitude D, which lies above the equator and parallel to the top of the Hadley cell, is where you might expect to find the driest average conditions in the Hadley cell circulation pattern mentioned in the question (north of the equator). Due to the compression, the air in the Hadley cell becomes warm and dry as it descends, resulting in arid or desert-like conditions.

La Niña is a climate phenomenon that causes cooling of sea surface temperatures in the central and eastern tropical Pacific Ocean. It represents the inversion phase of the El Niño–Southern Oscillation (ENSO) cycle.

Therefore, the correct options for 1, 2, 3 and 4  are B, B, D and B respectively.

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Your question is incomplete, most probably the complete question is:

1. How would the Coriolis effect alter movement of an air mass flowing from a higher to a lower latitude in the Northern Hemisphere?

Select one:

a. It would deflect the path of the air mass to the east. Incorrect

b. It would deflect the path of the air mass to the west.

c. It would deflect the path of the air mass to a lower altitude.

d. It would deflect the path of the air mass to a higher altitude.

(03.02 LC)

2. Which of the following would provide the best assessment of the fertility of a soil?

Select one:

a. O horizon

b. A horizon

c. B horizon Incorrect

d. C horizon

.3. The diagram below represents a convection cell. The arrows indicate the direction of air flow:

Diagram showing Hadley Cell located north of the equator. The air in the Hadley Cell flows counterclockwise. Label A is located below the equator. Label B is located at the equator. Label D is located above the equator and parallel to the top of the Hadley Cell. Label C is located between B and D. Label E is located above Label D.

The letters represent particular latitudes. At which latitude would you expect to find the driest average conditions?

Select one:

a. A Incorrect

b. B

c. C

d. D

4. A La Niña can be described as

Select one:

a. warmer than usual waters in the Atlantic waters

b. cooler than usual waters in the tropical Pacific

c. warm waters traveling eastward toward South America

d. cool waters causing colder than normal temperatures in the Southeast Incorrect

If the DNA is: TAC CGA CCG ACC TTA. Create a mRNA strand with a point mutation that would “not affect” the protein.

Answers

Answer:

AUG GCU GGG AGG AAU

Explanation:

A point mutation that would not affect the protein is one that has the same mRNA codon. The answer choices indicate that the third part is affected. The normal mRNA would be GGC, which if you look at the table, is gly. The other sequences that match are GGU, GGC, GGA, and GGG. The only answer choice that matches is the third one, with GGG.

The diagram below illustrates changes over time in a population of foxes in the
wild.

What process is illustrated in the diagram?
extinction
overproduction
natural selection
artificial selection

Answers

the answer is natural selection

2. Explain how similar and different sexual reproduction in plants and animals is?

Answers

Answer:Both plants and animals reproduce sexually, producing a male and female gamete, which fuse to form a zygote. However, plants are also able to reproduce asexually, unlike most animals. ... In sexual reproduction in animals, the two gametes are the spermatozoa and the oocyte, which when fused become the ovum.

Explanation:

During which phases of the cell cycle are chromosomes composed of two chromatids?

Answers

Answer:

The correct phases are S phase, prophase, anaphase.  

Explanation:

The cell cycle, the sequence of events spanning the period from the completion of one cell division to the end of the next division, involves both the division of the cell nucleus (karyokinesis) and the division of the cytoplasm (cytokinesis). S phase, the next section of the interface, is marked by a dramatic increase in DNA synthesis and the synthesis of histones which are major cellular proteins bound to DNA. The cell is preparing for the start of mitosis. Chromosomes duplicate lengthwise, and each chromosome consists of two identical "chromatids."During prophase, the degree of packing of the chromatin increases, so the chromosomes become shorter and thicker and the centromeres begin to become visible. Each of the chromosomes, due to its duplication in S phase, is made up of two identical chromatids, called sister chromatids. Anaphase is the short phase, the sister chromatids begin to separate and migrate to the poles. Once the two chromatids separate, each is called a chromosome.

The purpose of isolation techniques is to:

Answers

Stay away from others?

Answer:

Isolation practices are designed to minimize the transmission of infection in the hospital, using current understanding of the way infections can transmit. Isolation should be done in a user friendly, well-accepted, inexpensive way that interferes as little as possible with patient care, minimizes patient discomfort, and avoids unnecessary use.

Explanation:

The processes of diffusion and active transport are both used to * break down molecules to release energy move molecules into or out of cells of the body bring molecules into cells when they are more concentrated outside of the cell move molecules against a concentration gradient, using ATP molecules

Answers

Answer:

move molecules into or out of cells of the body

Explanation:

Majorly, there are two types of transport used by living cells. These are; passive and active transport. Passive transport involves the movement of molecules down a concentration gradient without the need for energy (ATP) input. Example is DIFFUSION AND OSMOSIS.

On the other hand, active transport is a type of transport that moves molecules against a concentration gradient (low to high) with the aid of energy input (ATP). Example is sodium-pottasium proton pump.

Although there are obvious differences between these two processes (diffusion and active transport), but they both MOVE MOLECULES INTO OR OUT OF CELLS OF THE BODY.

How long will it take for 40.0 grams of Radium-226 (Ra-226) to decay to leave a total of 2.5 grams of Ra-226? Ra-226 has a half-life of 1600 years.

Answers

Answer:

6400 years

Explanation:

Given that;

N/No =(1/2)^t/t1/2

No = amount of radioactive material originally present

N = amount of radioactive material present at time t

t= time taken for N amount of radioactive material to remain

t1/2 = have life of the radioactive material

2.5/40 = (1/2)^t/1600

1/16 =  (1/2)^t/1600

(1/2)^4 = (1/2)^t/1600

4 = t/1600

t = 4 * 1600

t = 6400 years

What is a convergent boundary? Name one example of a convergent boundary.

Answers

Answer:

The Washington-Oregon coastline of the United States is an example of this type of convergent plate boundary.

If you are studying a gene within DNA and find out that guanine makes up 41% of it, how much is Adenine?

Answers

A - 9%
T - 9%
C - 41%
G - 41%

Total is equal to 100%
Other Questions
Is there anyone you would sacrifice your life for? Explain who and why? p3=4HelpppppMeeeePlzzz Solve the system below.y = x2y = 2x + 15 What can be the outcome of a conclusion that has been verified various times? At 9AM a train traveling 60 miles per hour leaves Los Angeles for San Francisco, a distance of 400 miles. At noon a car traveling at an average speed of 40 miles per hour leaves San Francisco for Los Angeles. At what time will the two vehicles pass each other?ANSWER PLS 2. Which of the following would be considered part of the biosphere? *Ovolcanic lavaO ocean waterO ozoneO pine trees PLEASE HELP WILL GIVE OUT BRAINLEYSTMATHH PEOPLE HELP Rossdale, Inc., had additions to retained earnings for the year just ended of $641,000. The firm paid out $50,000 in cash dividends, and it has ending total equity of $7.36 million. 1. If the company currently has 730,000 shares of common stock outstanding, what are: a. Earnings per share? b. Dividends per share? c. Book value per share? (Do not round intermediate calculations and round your answers to 2 decimal places, e.g., 32.16.) 2. lf he stock currently sells or $30.60 per share, what is: a. the market-to-book ratio? b. the price earnings ratio? 3. If total sales were $10.66 million, what is the price-sales ratio? How many nineths does it take to make the same as 1/3 (08.05 MC)The quadratic functions f(x) and g(x) are described as follows:f(x) = -8x? +7g(x)0012263240Which of the following statements best compares the maximum value of the two functions?The maximum value is the same for both functions.Of(x) has a greater maximum value than g(x).O g(x) has a greater maximum value than f(x).The maximum values cannot be determined. 2 What title did Kim Jong-un receive when he became leader? If active transport establishes a concentration gradient with the use of ATP, then the concentration gradient can be looked at as name and describe the process occurring in the nucleus which results in the formation of an mRNA molecule Record adjusting journal entries for each of the following for year ended December 31. Assume no other adjusting entries are made during the year.Accounts Receivable. At year-end, the L. Cole Company has completed services of $20,500 for a client, but the client has not yet been billed for those services. Interest Receivable. At year-end, the company has earned, but not yet recorded, $450 of interest earned from its investments in government bonds. Accounts Receivable. A painting company bills customers when jobs are complete. The work for one job is now complete. The customer has not yet been billed for the $1,420 of work. The following Information applies to the questions displayed below.) Bargain Rental Car offers rental cars in an off-airport location near a major tourist destination in California. Management would like to better understand the variable and fixed portions of It car washing costs. The company operates its own car wash facility in which each rental car that is returned is thoroughly cleaned before being released for rental to another customer. Management belleves that the variable portion of its car washing costs relates to the number of rental returns. Accordingly, the following data have been compiled: Month Rental Returns Car Wash CostsJanuary 2,380 $ 10,825February 2,421 $ 11,865March 2,586 $ 11,332 April 2725 $ 12422May 2968 $ 13850 June 3281 $ 14419July 3,353 $ 14,935August 3,489 $ 15,738September 3,057 $ 13,563October 2,876 $ 11,889November 2,735 $ 12,683December 2,983 $ 13,796 Using least-squares regression, estimate the variable cost per rental return and the monthly fixed cost Incurred to wash cars. (Round Fixed cost to the nearest whole dollar amount and the Varlable cost per unit to 2 decimal places.) find the unknown side length x right here answer in simplest radical formA.241B.429C.48D.58 Someone please help me Ill give out brainliest please dont answer if you dont know PLS HELP ASAP Which equation models this situation?28 more than a number is 33.A. X+ 33 = 28B. X- 28 = 33C. X = 28 + 33D. X + 28 = 33 Let f(x) = 4x - 1, h(x) = - X-3.Find (f o h)(-5). What question should you ask yourself to find the central idea of a passage or paragraph?