During inhalation, the diaphragm contracts. As it contracts, the diaphragm moves downward, increasing the volume within the thoracic cavity. Due to this increased volume in the thoracic cavity, a negative pressure gradient is generated which causes air to flow from the environment into the lungs. The lungs expand as the alveoli of the lungs fill with air.
During exhalation, the diaphragm relaxes and rises into the thoracic cavity, decreasing the volume in the thoracic cavity. The decreased volume in the thoracic cavity results in an increased pressure which causes air to flow from the lungs out to the environment. At the same time, the lungs are elastic and act to help air flow out as the retract after being expanded.
Links will be reported. Please only respond if you know the answer
Which is NOT a
cause of air
pollution?
A. industry and manufacturing
B. burning rubber or plastic
C. combustion from engines
D. detergents
Answer:
It is D= detergents is the correct answer
Can someone help me list the following events?
Answer:
Explanation:
A: Rocky crust
B: Mohorovicic
C: outer mantel
D: inner mantel
E: Gutenbem
F :outer core
G :inner core
Which of the following organisms cannot create their own food?
O Plants such as grasses
O Protists such as algae
O Animals such as humans
O Plants such as trees
Answer:
animals such as humans
Explanation:
Answer:
animals such as humans
Explanation:
mark me brainliest!!!!
Which option identifies a question to consider in the following scenario? Frannie is thinking of breeding her seven-year-old cow. What is the rate of prenatal growth in cows? How long will her gestational period be? What nutritional supplements are best for pregnancy? How long has it been since the cow’s last calf?
Answer:
How long has it been since the cow’s last calf?
Explanation:
I just took the test. Its like this because if the Cow does not calf for a few years she is less likely to calf.
a key feature of enzymes is that they _____.
a. interact generally within cells
b. are changed by reactions
c. are carbohydrates
d. are not used up in reactions
e. force reactions to occur
Answer:
d. Are not used up in reactions
Explanation:
This is a property of enzymes. They are not used up since they don't participate in reactions. They just help increase the rate at which it occurs
A key feature of enzymes is that they force reactions to occur. Thus, the correct option for this question is E.
What are Enzymes?Enzymes may be defined as biocatalysts that increase the rate of a chemical reaction without being changed in the overall process. It may be thought that all sorts of cellular reactions or processes are mediated by enzymes.
Most of the enzymes are proteins. They are highly specific in nature. Enzymes also exhibit enormous catalytic power. They do not alter the equilibrium state of biochemical reactions.
Enzymes typically speed up the rate of a chemical reaction by lowering the activation energy of a particular reaction. Thus, it leads to the conversion of reactants into products at a faster rate.
Therefore, a key feature of enzymes is that they force reactions to occur. Thus, the correct option for this question is E.
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¿Cuál es el triplete qué en la región promotora del ADN indica el inicio de la síntesis de proteínas?
Answer:
AUG
Explanation:
hueso impar y externo de la cabeza , ubicado en la parte posterior e inferior de la misma
Answer:
creo que es el cranio
Breathing is partly the result of changes in air (A) pollution.
(C) pressure.
(B) circulation.
(D) all of the above.
tango is what kind of music
Tango is a style of music that originated in Argentina and Uruguay, influenced by both regional folk music and European classical dance music. Both Uruguayan and Argentine tango dance music is composed in the easily danceable time signatures of 4/4 and 2/4.
What is the style of tango music?
The style of tango music has a great nuance of sensuality and passion. In addition, the musical metric and the strong times accentuate and complement the way in which the tango is danced.
In addition to all these things, the lyrics of the music re-emphasize the passionate character that the dance reflects.
Thus, Tango music can be instrumental, or it can feature a vocalist.
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Which type of cells are more complex and larger?
A. Unicells
B. Prokaryotes
C. Eukaryotes
Answer: C. Eukaryotes
Explanation:
Answer:
C
Explanation:
Like a prokaryotic cell, a eukaryotic cell has a plasma membrane, cytoplasm, and ribosomes, but a eukaryotic cell is typically larger than a prokaryotic cell, has a true nucleus (meaning its DNA is surrounded by a membrane), and has other membrane-bound organelles that allow for compartmentalization of functions.
Cual seria el recorrido de una molecula de glicosa desde que es absorbida en el intestino delgado hasta que es metabolizada en el cerebro ?
Answer:
Del intestino delgado ---- torrente sanguíneo --- célula u órgano de almacenamiento.
Explicación:
Después de la absorción de glucosa por el intestino delgado, las moléculas de glucosa se difunden por un gradiente de concentración hacia la sangre capilar dentro de las vellosidades y estas moléculas de glucosa se liberan en el torrente sanguíneo. Cuando las moléculas de glucosa se agregan al torrente sanguíneo, la glucosa puede usarse para la producción de energía o almacenarse en nuestros cuerpos, que puede usarse cuando sea necesario. Si nuestro cuerpo necesita energía esta glucosa es absorbida por las mitocondrias de las células para la producción de energía mientras que por otro lado, si no se requiere energía, estas moléculas de glucosa se almacenan en diferentes órganos en forma de glucógeno.
match the parts of the city and if you can pls explain
If you know the answer then answer it please!?!
Answer:
B
Explanation:
Hope this helped. goodluck on ur assignment!
1 point
A cell environment in which the number of solutes is HIGHER on the
outside of the cell membrane than the inside- water moves out of the cell.
1.hypotoinc
2.hypertonic
3.isotonic
Answer:
2. Hypertonic
Explanation:
10. Someone said that light bent around a corner to reach an object. Is this possible? (there is no picture associated with this question)
a
No, light travels in straight lines only.
b
Yes, light travels like a river, wherever there is an open path.
c
Maybe; light travels in unpredictable ways.
d
Yes, if the light is bright enough, then it can bend to follow a curved path.
This is a DNA strand: TACGAA Which of the following is the
complementary DNA strand that would be made through Replication?
A. GCAUCC
B. ATGCYT
C. AUGCUU
D. GCATCC
Animals that have a complete
tube-like gut with two openings
Answer:
All mammals, like dogs, cats, and humans; reptiles, amphibians, fish, birds, and even insects.
Explanation:
All mammals, like dogs, cats, and humans; reptiles, amphibians, fish, birds, and even insects are the animals that have a complete tube-like gut with two openings. A system having a tube with two openings i.e. mouth and an anus is called tubular system. In this tubular system, the animals eat with one opening and the other opening is used for excretion of waste and nitrogenous materials from the body so that's why most of the animals have two openings.
Identify the macromolecules labeled as A, B, and C and explain their role within the context of the cell membrane (as presented in the picture).
Answer:
may we see the picture??
Explanation:
7. The diagrams show stages in the passage of water through a plant,
The circles are the starting points for arrows to show the direction in which the water moves.
Which circle must have an arrow pointing downwards only?
From the understanding of how water moves through plants, the only circle that can have a downward pointing arrow only is A.
Water moves through a plant in the following direction:
Soil ----> root -----> stem ----> leaves
Once water gets into the root from the soil, a conducting tissue known as xylem conducts the water upward through the stem of the plant branching off into the leaves through the petiole. from the petiole, water is then conducted to the mesophyll cells.
Circle D represents the root, so the arrow must be upward.
Circle C represents the stem, the arrow continues upward towards the leaves
Circle A and B represent the leaf. The movement of water within the leaf might requires that it is from circle A to circle B. Hence, the only circle that must have an arrow pointing downward only can only be A.
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Name three effects on an ecosystem when biodiversity is lost
Answer:
At higher levels of extinction (41 to 60 percent of species), the impacts of species loss ranked with those of many other major drivers of environmental change, such as ozone pollution, acid deposition on forests, and nutrient pollution.
Explanation:
Answer:
There are a lot because without biodiversity there is no balance in the ecosystem.
Explanation:
species loss(some animals start dying)
environmental change(kind of like climate change)
Pollution(wild fires, pollution in waters and nutrients)
Hope this helps:)
What do organisms, including humans, need resources for?
Answer:
for peacefulness
........
They need resources to survive. The resources are mainly air, water and food, to provide the living organisms energy to make growth, movements and reproduction.
I got a project and I need explanation to what respiratory system in the human body is not less than one page I need it urgent please help
Answer:
Your respiratory system is the network of organs and tissues that help you breathe. This system helps your body absorb oxygen from the air so your organs can work. It also cleans waste gases, such as carbon dioxide, from your blood. Common problems include allergies, diseases or infections The cells in our bodies need oxygen to stay alive. Carbon dioxide is made in our bodies as cells do their jobs. The lungs and respiratory system allow oxygen in the air to be taken into the body, while also letting the body get rid of carbon dioxide in the air breathed out.Your lungs are part of the respiratory system, a group of organs and tissues that work together to help you breathe. The respiratory system's main job is to move fresh air into your body while removing waste gases.The lungs are a pair of spongy, air-filled organs located on either side of the chest (thorax). The trachea (windpipe) conducts inhaled air into the lungs through its tubular branches, called bronchi. The bronchi then divide into smaller and smaller branches (bronchioles), finally becoming microscopic.The main purpose of respiration is to provide oxygen to the cells at a rate adequate to satisfy their metabolic needs. This involves transport of oxygen from the lung to the tissues by means of the circulation of blood.
Explanation:
Label the items on the picture by dragging to correct answer to the correct letter below the picture.
A=
B=
C=
D=
E=
F=
G=
Answer:
The North produced 17 times more cotton and woolen textiles than the South, 30 times more leather goods, 20 times more pig iron, and 32 times more firearms. The North produced 3,200 firearms to every 100 produced in the South.
Explanation:
Read the article to review the process where plants use energy from the sun to make food?
nucleosynthesis
chemosynthesis
autosynthesis
photosynthesis
Answer:
photosynthesis
Explanation:
sun energy to food for plants
Which process will directly result in organic matter being added to the soil?
water freezing in cracks of rocks
glaciers carving out a valley
river water eroding the banks of a stream
bacteria breaking down dead matter
Answer:
I think it should be the last one, "bacteria breaking down dead matter" hope this helps !!
In a batch culture, bacterial cultures typically exhibit four different phases of growth. In which phase are the cells rapidly synthesizing proteins, but cell numbers are not changing
Answer:
Lag phase
Explanation:
The lag phase is the first phase of bacteria growth and it is refer to period when bacteria is first introduced to the culture and the time it started increasing. The lag phase is the phase bacteria adapt to growth conditions and start surviving in the environment. It is the time bacteria start growing and cannot divide. In this phase , RNA and enzymes are synthesized.
All of the following are environmental influences except ____________. A. living conditions B. genes C. prenatal care D. media
The answer is B
Answer:
Yep Its B: genes
The Benefits of Communism
Theoretically, there are many benefits that can be achieved through a communist society. Communist ideology supports widespread universal social welfare. Improvements in public health and education, provision of child care, provision of state-directed social services, and provision of social benefits will, theoretically, help to raise labor productivity and advance a society in its development. Communist ideology advocates universal education with a focus on developing the proletariat with knowledge, class consciousness, and historical understanding. Communism supports the emancipation of women and the ending of their exploitation. Both cultural and educational policy in communist states have emphasized the development of a “New Man”—a class-conscious, knowledgeable, heroic, proletarian person devoted to work and social cohesion, as opposed to the antithetic “bourgeois individualist” associated with cultural backwardness and social atomization.
Other theoretically beneficial ideas characteristic of communist societies include:
People are equal. In a communist regime, people are treated equally in the eyes of the government regardless of education, financial standing, et cetera. Economic boundaries don’t separate or categorize people, which can help mitigate crime and violence.
Every citizen can keep a job. In a communist system, people are entitled to jobs. Because the government owns all means of production, the government can provide jobs for at least a majority of the people. Everyone in a communist country is given enough work opportunities to live and survive. Every citizen, however, must do his or her part for the economy to receive pay and other work benefits.
There is an internally stable economic system. In communism, the government dictates economic structure; therefore, economic instability is out of the question. Every citizen is required to work in order to receive benefits, and those who don’t have corresponding sanctions. This creates an incentive to participate and to encourage economic growth.
Strong social communities are established. In communism, there are certain laws and goals which determine resource and responsibility allocation. If the citizens abide by these laws, this leads to a harmonious spirit of sharing one goal. Consequently, this builds stronger social communities and an even stronger economy.
Competition doesn’t exist. In communist societies, everyone can work harmoniously without stepping on each other’s toes. Work, responsibility, and rewards are shared equally among the citizens. If people have no sense of envy, jealousy or ambitions that counter the goals of the state, then a harmonious economic development can be maintained.
Efficient distribution of resources. In a communist society, the sense of cooperation allows for efficiency in resource distribution. This is very important, especially in times of need and in emergency situations.
All of the following are environmental influences except Genes. So, the correct option is B.
What are Genes?Genes are defined as functional units of heredity as they are made up of DNA where as chromosome is made up of DNA which contains many genes. Each gene has a special set of instructions for a particular function or protein-coding. Genes are responsible for heredity.
Genes contain instructions that tell the cells how to work and grow where cells are the building blocks of the body. Every part of the body is made up of billions of cells working together. Genes are organized into structures called chromosomes.
Thus, all of the following are environmental influences except Genes. So, the correct option is B.
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Drag the structures to the appropriate boxes in order that oxygen would travel from the outside of your body to the blood stream
Choices: bronchi, nasal cavity, capillaries, trachea, pharynx, aveoli, bronchioles
Answer:
trachea, pharynx, aveoli, bronchioles
Explanation:
You want to know if the temperature of water affects how quickly a cube of
sugar will dissolve, or seem to disappear, into the water. In a controlled
experiment, what would be the responding (dependent), variable?
O The time it takes for the sugar cube to dissolve in water
O The amount of water
O The size of the sugar cube
The temperature of the water
Answer:
The time it takes for the sugar cube to dissolve in water
Explanation:
HELP!!! 50PTS!!!!
In wild populations where some areas are more favorable than others, individuals often show which type of dispersion? (3 points)
Clumped
Random
Uniform
Equilibrium
Answer:
clumped but im not so sure
Explanation: