Which organ system is used for smelling

Answers

Answer 1
olfactory system, the bodily structures that serve the sense of smell. The system consists of the nose and the nasal cavities, which in their upper parts support the olfactory mucous membrane for the perception of smell and in their lower parts act as respiratory passages.
Answer 2
olfactory system, the bodily structures that serve the sense of smell.

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Related Questions

What are some possible applications of therapeutic cloning?

Answers

Answer:

Hey mate....

Explanation:

This is ur answer....

Other applications of therapeutic cloning include the diagnosis of epigenetically triggered cancer and the tailoring of a treatment using SCNT, the creation of animal models of human diseases, and could eventually lead to tissue engineering of organs de novo.

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In gymnastics, a gymnast must be able to balance on a balance beam. What is the best explanation for what forces are acting on the gymnast on a balance beam? (2 points)



The forces are balanced when the force of gravity pulling you down is the same as the force of the balance beam pushing you up.

The forces are unbalanced when the force of gravity pulling you down is the same as the force of your legs pushing you up.

The forces are balanced when the force of gravity pulling you down is stronger than the force of the balance beam pushing you up.

The forces are unbalanced when the force of gravity is reduced to the same force as the balance beam pushing you up.

Answers

Answer:1

Explanation:Because gravity always pulls you down even when your standing on an object.

1. In human beings, a downward-pointed frontal hairline ("widow's peak") is a heritable trait. A
person with a widow's peak always has at least one parent who also has this trait, whereas
people with a straight frontal hairline may occur in families in which one or even both parents
have widow's peaks. When both parents have a straight frontal hairline, all children also have
a straight hairline. Using A and a to symbolize alleles for this trait, what is the genotype of an
individual without a widow's peak? (Show your work)

Answers

The genotype of an individual without a widow's peak would be aa.

A person with widow's peak has. at least a parent with the trait. When both parents have a straight frontal hairline, all the children also have a straight frontal hairline.

The above features are indications that widow's peak is a dominant trait.

Since A and a are used to represent the alleles, AA or Aa will be the genotype of individuals with widow's peak while only aa will be the genotype of individuals with straight frontal hairlines.

In other words, individuals without a widow's peak will have aa as genotypes.

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In 3-5 sentences, describe the advantages and disadvantages of these maps in modeling mitosis.

Answers

Answer:

Explanation:

you haven't put the image, however mitosis is the splitting of one cell into two identical daughter cells (duplicating the DNA) - hope this helps!

What is gel electrophoresis used for? Select all that apply.
O A) It is used to sort DNA strands.
B) It is used to produce more DNA strands.
C) It is used to measure DNA strands.
D) It is used to break down DNA molecules.

Answers

Answer:

used to separate mixtures of DNA, RNA, or proteins according to molecular size

Gel electrophoresis is used for the separation of genetic material present in the cell such as DNA, RNA and even proteins. Thus, the correct option is A.

What is Gel electrophoresis?

Gel electrophoresis is a technique which is used to separate the genetic material such as DNA fragments, RNA and proteins on the basis of their size and charge. Gel Electrophoresis involves running an electric current through a gel containing the molecules of interest in it.

The principle of Gel electrophoresis is that the DNA or protein sample to be separated is loaded on to a porous gel placed in an ionic buffer. On the application of electric charge, each of the molecules having different size and charge will move through the gel at different speeds and therefore separates out.

Therefore, the correct option is A.

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What is the difference between diffusion and osmosis?
What makes a membrane semipermeable?
What characteristics of a molecule affect whether it can pass through the plasma membrane of a cell?
In the simulation, when protein molecules were evenly distributed on both sides of the membrane, was the solution isotonic, hypertonic, or hypotonic?
Which direction was water flowing?
In the simulation, when protein molecules were more highly concentrated on the inside of the cell than outside of the cell, was the solution isotonic, hypertonic, or hypotonic?
Which direction was water flowing?
Why is it important that the plasma membrane surrounding cells is semipermeable?
What would happen if it were not semipermeable?
1) Diffusion : Is the movement of molecules / ions from a region of higher to lower concentration. It may or may not occur across a semi permeable membrane.

In diffusion there is no challenge involved as it is along the concentration gradient, but in active transport movement of molecules occur against concentration gradient ie; from lower to higher concentration.

2) For active transport, energy is vital for movement, in this case protein molecules function as molecular pumps to enable the cell accumulate glucose/ions, against concentration gradient. Here metabolic energy ATP is required.

3)Facilitated diffusion is a type of passive transport in which ions/molecules cross the semi permeable membrane because permeases present in the membrane facilitate the transport.
Like simple diffusion facilitated diffusion doesn't require metabolic energy and simply occurs across the concentration gradient.

4) Osmosis : is movement of water from hypotonic solution (lower concentration) to hypertonic solution (higher concentration) through a semi permeable membrane.
The cell membrane being permeable to water allows to and from movement of water molecules along the concentration gradient.
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Diffusion is the process of a substance moving from an area of high concentration to an area of lower concentration. Osmosis is a type of diffusion where water moves across a semipermeable membrane still from an area of high concentration of water to an area of lower concentration of water. This corresponds to water moving from an area with a low concentration of solute to an area with a higher concentration of solute.
A semipermeable membrane allows some substances to pass through it.
The plasma membrane of a cell allows small uncharged molecules to pass through it, but not large molecules and not charged ions.
The protein molecules were evenly distributed on both sides of the membrane, so this solution was isotonic.
In an isotonic solution, water moves both in and out of the cell, which was observed in the simulation.
The protein molecules were more highly concentrated on the inside of the cell, so this solution was hypotonic.
In hypotonic solutions, water moves into the cell to help dissolve the higher amount of solute inside the cell, which was observed in the simulation.
A semipermeable cell membrane is important to allow some molecules, like proteins, to be more highly concentrated inside the cell than outside the cell. If the cell membrane were permeable, the molecules on the inside of the cell would exit the cell and be evenly distributed in the cell and in its environment.
If the cell membrane were not permeable at all, the cell would not be able to receive nutrients from its environment.

Answers

Diffusion and osmosis has one difference which is the presence of semi-permeable membrane.

What is the difference between diffusion and osmosis?

Diffusion is the movement of particles from an area of higher concentration to one of lower concentration while on the other hand, osmosis is the movement of particles from a semipermeable membrane.

Cell membrane is selectively permeable which only allows some molecules inside the cell because of its structure. So we can conclude that diffusion and osmosis has one difference which is the presence of semi-permeable membrane.

When protein molecules were evenly distributed on both sides of the membrane, the solution will be isotonic because of the same quantity on both sided. There is no movement of water in the body.

When protein molecules were more highly concentrated on the inside of the cell than outside of the cell, the solution will be hypotonic because of the less amount of water in the body.

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Answer:

- 1). Diffusion is the process of a substance moving from an area of high concentration to an area of lower concentration. Osmosis is a type of diffusion where water moves across a semipermeable membrane still from an area of high concentration of water to an area of lower concentration of water. This corresponds to water moving from an area with a low concentration of solute to an area with a higher concentration of solute.

- 2).

a). A semipermeable membrane allows some substances to pass through it.

b). The plasma membrane of a cell allows small uncharged molecules to pass through it, but not large molecules and not charged ions.

- 3).

a). The protein molecules were evenly distributed on both sides of the membrane, so this solution was isotonic.

b). In an isotonic solution, water moves both in and out of the cell, which was observed in the simulation.

- 4).

a). The protein molecules were more highly concentrated on the inside of the cell, so this solution was hypotonic.

b). In hypotonic solutions, water moves into the cell to help dissolve the higher amount of solute inside the cell, which was observed in the simulation.

- 5).

a). A semipermeable cell membrane is important to allow some molecules, like proteins, to be more highly concentrated inside the cell than outside the cell. If the cell membrane were permeable, the molecules on the inside of the cell would exit the cell and be evenly distributed in the cell and in its environment.

b). If the cell membrane were not permeable at all, the cell would not be able to receive nutrients from its environment.

What's biology?
Biology is a natural sciences that deals with the study of living things.

Answers

Answer:

True

Explanation:

You study plants, animals, and cells in biology if I'm not mistaken.

The small size of cells
A. Allows for efficient transport of materials
B. Causes food to be broken down slowly
C. Slows down the removal of wastes
D. Allows for fewer cell organelles

Answers

Answer:

A

Explanation:

this is because, in smaller organism their SA/V ratio is large hence they have efficient transport of materials within their cells

What would most likely happen to a person who is not getting enough essential amino acids in his or her diet?
The body would synthesize the amino acids.
Muscle growth and repair would be limited.
Stored protein would break down.
The formation of proteins would increase

Answers

Answer:

Muscle growth and repair would be limited.

Please Help!
Q. Explain the purpose of DNA and RNA.

Answers

Answer:

DNA is the structure that defines your genetic characteristics while RNA are proteinous substances that act as messengers to carry information to and from the nucleus of the cells.

Drag each item to indicate whether it exhibits fracture or cleavage.​

Answers

Answer:

From left to right

Explanation:

Cleavage, cleavage, fracture

The first item exhibit a cleavage. The second item exhibit a cleavage. The third item exhibit a fracture.

In mineral science, Cleavage is the process by which a mineral breaks or splits through smooth planes with a pattern because the material is stratified in a layered pattern. It generally seems regular since it fractures along its plane of weakness.

A fracture happens when a mineral splits with fractures and does not produce a particular definite shape. It frequently emerges in an erratic and irregular pattern.

From the three picture given, the first and the second item exhibit cleavage, and the third item exhibit fracture.

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Choose which assumption must be made in order for this estimate of broad-sense heritability to be correct.

a. The phenotypic variance of the genetically identical plants is the same as the genetically variable population.
b. The genetic variance component is strictly the result of additive genetic variance.
c. The environmental variance of the genetically identical plants is the same as that of the genetically variable population.
d. There is no phenotypic variance associated with the environment.

Answers

The assumption 'environmental variance of the genetically identical plants is the same as that of the genetically variable population' is CORRECT. It is used to estimate the variation due to genetic factors.

Heritability (h2) refers to the proportion of the variability of a given phenotypic trait due to genetic factors.

Broad-sense heritability is affected by genetic and environmental factors.

Broad-sense heritability can be estimated as H² = VG/VP, where VG and VP represent genetic variability and phenotypic variability, respectively.

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Down's syndrome occurs because of a(n)



missing sex chromosome



extra sex chromosome



additional 21st chromosome



additional 18th chromosome

Answers

Answer:

C.Additional 21st chromosome

Explanation:

Hope this helped :)

Which of the following pays a fixed rate of return

Answers

Answer:

Reinvestment of coupon payments

A hummingbird may need to consume up to 50% of its body weight in sugar each day, just to meet its energy needs. Some of this energy is stored and some is used for metabolic activities, but much of the energy is

A)
converted into amino acids needed for the production of starch
B)
released as heat energy back into the hummingbird's environment
C)
changed into radiant energy, which can be used by plants for photosynthesis
D)
used to synthesize inorganic compounds necessary for cellular respiration

Answers

Answer:

A

Explanation:

D. Used to synthesize inorganic compounds necessary for cellular respiration

Some animal species are divided into what
A.varieties
B.sub species
C.identical species
D.twin species

Answers

Answer:

YEssir

Explanation:

cause it is

Which side is hypertonic ? A or B ?
Which side will gain water
What is c ?

Answers

Answer:

1-b

2-b

3-phospholipid bilayer

B side is hypertonic. It will gain water. C is Phospholipid layer.

What is Hypotonic Solution?

A hypotonic solution is a type of solution that has a lower osmotic pressure than any other solution to which it is compared. It is a solution in which a small amount of solute passes across a semipermeable membrane compared to the amount of solute in the other solution.

If the solute concentration outside the cell is lower than inside the cell, these solutes cannot cross the membrane, so the solution is hypotonic to the cell.

The cell membrane consists of a phospholipid bilayer containing embedded proteins present between these two solutions where a hypotonic solution has a relatively low concentration of solutes.

Thus, B side is hypertonic. It will gain water. C is Phospholipid layer.

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Which chemical produced by the burning of fossil fuels causes acid rain?
Water
Nitric oxide
Carbon dioxide
Phosphatys

Answers

Answer:

it's carbon dioxide good luck.

Hey, I need help with these questions please:

Answers

Answer:

on the human body

Explanation:

i think.....

Describe DNA replication. Include all relevant aspects. When does this process occur? and why

Answers

Replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. DNA replication is one of the most basic processes that occurs within a cell. ... To accomplish this, each strand of existing DNA acts as a template for replication.

Can someone fill in the blank thank you will give brainliest

Answers

Answer:

gene and protein

Explanation:

The first blank is a gene the second one is protein

What is the genetic makeup of offspring resulting from mitosis?

A. They are genetically identical to the parent cell.
B. They have half as many chromosomes as the parent cell.
C. They have twice as many chromosomes as the parent cell.
D. They share half their genes in common with both parents.

Answers

A. That good answer

Answer:

Mitosis means the offspring is identical! So answer is A!

Original dna: CTGCAA
MUTATED DNA: CGCAA

THIS IS AN EXAMPLE OF

Answers

an insertion mutation

The closing on your ad gives details about your services.
True
False

Answers

Answer:

True

Explanation:

In the closing, often a brief explanation is given on the company's name what they do how u can contact them and maybe some other information

P.s I do not take this subject

Question 1

Which of the following explains how scientists know that current global warming is related to human activities?

Atmospheric carbon has increased much faster than in the past.
There were no greenhouse gases in the atmosphere in the past.
There was more methane in the atmosphere 6,000 years ago.
There is more water vapor in the atmosphere today than the past.
Question 2

Which of the following is not a future impact of global warming?

Sea level falling
Less freshwater
Human migration
Disrupted ecosystems

Answers

Answer:

First answer it might be the first one I do not know if it is correct .Second answer The last one d

Explanation:

Because if even one part of the ecosystem collapse the hole ecosystem will collapse in generation genius website there is a video about it go check it out

Albinism is caused by a recessive mutation. If two albino mice mate and produce offspring with normal pigmentation, what could you conclude about the parental mutations

Answers

Answer: A geneticist studies a series of families in which both parents are normal and at least one child has albinism. The geneticist reasons that both parents in these families must be heterozygotes and that albinism should appear in  of the children of these families. To his surprise, the geneticist finds that the frequency of albinism among me children of these families is considerably greater "Than . Can you think of an explanation for the Thigher-than-expected frequency of albinism among These families?

Explanation:

The molecule is illustrated in figure ________.
A) is a saturated fatty acid B) stores genetic information
C) will be liquid at room temperature D) is a carbohydrate

Answers

The molecule is illustrated in the figure is an unsaturated fatty acid. These molecules are liquid at room temperature (Option C).  It is for that reason that unsaturated fatty acids are called oils.

The unsaturated fatty acids are liquid at room temperature, thereby they are known as oils (they are mainly found in plant fats).

The unsaturated fatty acids have one or more double bonds of carbon to carbon atoms.

Conversely, saturated fatty acids are solid at this temperature and do not have double bonds (they are mainly found in animal fats).

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Explain why water is essential for the light reactions.

Answers

Answer:

During the process of photosynthesis, six molecules of carbon dioxide and six molecules of water react in the presence of sunlight to form one glucose molecule and six molecules of oxygen. The role of water is to release oxygen (O) from the water molecule into the atmosphere in the form of oxygen gas (O2).

Explanation:

Water is important for photosynthesis because it the source of hydrogen for the sugars created through photosynthesis

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what type of weather is typically associated with the air pressure system near Salem

Answers

Answer:

According to common weather maps of the region surrounding Salem, Massachusets, the weather typically associated with the air pressure system is rain.

Explanation:

Given the nature of warm air and its tendency to rise, warmer regions tend to fall under the low-pressure system category. These systems, due to the movement of the warm air, have lower pressure at their center than in the areas surrounding them. As the wind blows towards the low-pressure air systems, the cooler and warmer air meet within the atmosphere, which causes the water vapor to condense and form clouds. Oftentimes, these clouds then precipitate, causing rain.

una característica que se puede observar o medir sin cambiar la composición de la materia es una propiedad química ¿cierto o falso ?​

Answers

Answer:

Falso, una propiedad química cambia no solo su apariencia, sino que la cambia por completo. Por ejemplo, la madera sigue siendo madera hasta que la pones al fuego y QUÍMICAMENTE se convierte en col. =)

Explanation:

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