Which statement best describes the human respiratory system? A) It is composed of a network of moist passageways that permit air to flow from the external environment to the lungs. B) Each cell of the human body is in direct contact with the external environment, and gas exchange occurs by diffusion. C) The external body surface is kept moist to allow for gas exchange. D) Gases diffuse across membranes on both the external and internal surfaces of the body.
Answer:
A) It is composed of a network of moist passageways that permit air to flow from the external environment to the lungs.
Explanation:
The correct statement that describes the RESPIRATORY SYSTEM of human being is option A which states that, It is composed of a network of moist passageways that permit air to flow from the external environment to the lungs.
The sequence of processes leading to the release of energy in living cells is called respiration. The most complex respiratory system is found in mammals ( human beings). This involves the following:
the intake and absorption of oxygen from the surrounding environment; the transport of oxygen to the individual cells in the body; andusing oxygen to release energy (as Adenosine triphosphate) from energy-rich substances.Because human beings are exposed to the atmosphere and have dry body coverings. Gaseous exchange cannot occur through their body surfaces, instead they possess respiratory structures to being dry air in contact with moist surfaces within their bodies. These structures includes:
the trachea andthe lungs ( where bronchi and alveoli are located)TRACHEA or the wind pipe channels the air to the lungs. At the thorax, the trachea into two forming the right and left BRONCHI.
The alveoli is where the gaseous exchange takes place. Tiny blood vessels, called capillaries, are closely wrapped around the outside of the alveoli. This enables oxygen to diffuse across the walls of the alveoli into the blood.
Therefore the correct option that describes the RESPIRATORY SYSTEM of human being is A which states that It is composed of a network of moist passageways that permit air to flow from the external environment to the lungs.
Option B is WRONG because human beings are not unicellular organisms like Amoeba where their gaseous exchange organs are cell membrane or body surfaces.
Option C and D are equally wrong because human beings are not simple animals like amphibians that involves in cutaneous (skin) respiration.
Learn more here:
brainly.com/question/20050528
All of the following are important environmental problems in Latin American cities, except __________.
A.
water scarcity
B.
air pollution
C.
transpiration
D.
waste disposal
Please select the best answer from the choices provided
A
B
C
D
Name two Earth processes that influence the distribution of natural resources on Earth.
Which mollusk body part produces the hard shell of clams, snails and oysters?
mantle
foot
tentacle
radula
Answer:
mantle
Explanation:
Mollusks often have a hard outer shell to protect their bodies. All mollusks have a thin layer of tissue called a mantle which covers their internal organs.
what this???????????????
Answer:
stem
Explanation:
What is a trade-off to using a microscope?
Answer: I need more explination to answer
Explanation:
100 POINTS QUESTION!! NEED HELP!
What is the dewpoint if the dry-bulb temperature is 18 degrees C and the relative humidity is 64%?
Answer and Explanation:
I think the dewpoint is 11.09°C or 11.1°C. I'm not sure though..
let me know if I'm wrong..
The dew point temperature is at 11.62°C for a relative humidity of 64%
Dew point
The dew point is the temperature the air needs to be cooled to (at constant pressure)
Given that:
Relative humidity (R) = 64%, Dry-bulb temperature(T) = 18 °C.
[tex]B=\frac{ln(\frac{R}{100} )+\frac{17.27*T}{237.3+T} }{17.27} =\frac{ln(\frac{64}{100} )+\frac{17.27*18}{237.3+18} }{17.27} =0.0447[/tex]The dew point (D) is:
[tex]D=\frac{237.3*B}{1-B} =\frac{237.4*0.0467}{1-0.0467} =11.62[/tex]
The dew point temperature is at 11.62°C for a relative humidity of 64%
Find out more on dew point at: https://brainly.com/question/24539423
Name two Earth processes that influence the distribution of natural resources on Earth.
Answer:
Earth's natural resources are unevenly distributed across the globe this can be explained by geological process like the movement of tectonic plates erosion and volcanic activity.
Explanation:
Hope this helped Mark BRAINLEST!!
Answer:
I'm not 100% sure
Explanation:
Different regions have access to different renewable or nonrenewable natural resources such as freshwater, fossil fuels, fertile soil, or timber based on their geographic location and past geologic processes. Access, or the lack thereof, contributes to a place’s economic development, political relationships, and culture. For example, the Great Plains region of the United States is known for its abundance of fertile soil. As a result, its main industry is agriculture. Corn, soybeans, and wheat are globally exported from this region and serve as the main economy. On the other side of the spectrum, the desert southwestern region of the United States depends on the Central Arizona Project canals to transport water from the Colorado River in order to support agriculture and urban areas. Arizona’s right to use water from this river stems from the Colorado Compact, an agreement established in 1922.
I could not find any subject that was close to forensics, so I chose a random one. PLEASE HELP
A person who has never been arrested commits a crime. An eyewitness sees a person running from the crime scene. What method could investigators use to help locate the person?
Answer:
with the eye witness they could locate which direction the person ran off to. depending on which crime they commited they could have left valubal pieces of evidence that could help the investigators find out who the person is. with the eye witness they could tell teh investigators exactly where the crime was comitted, with that piece of evidence they could seach around the area for clues of who the person was. if they find out who the person was they could locate where the person lives.
Explanation:
Choose an animal which you are particularly interested in learning more about. Spend some time learning about the kinds of food the animal eats, how it protects itself, where it lives, and how it finds shelter. Write a report about your animal’s niche and include a description of all the different aspects of niches that you can find.
What role do genes have in making proteins?
Answer:
A few genes produce other molecules that help the cell assemble proteins.
Explanation:
During the process of transcription, the information stored in a gene's DNA is transferred to a similar molecule called RNA (ribonucleic acid) in the cell nucleus. Both RNA and DNA are made up of a chain of nucleotide bases, but they have slightly different chemical properties. The type of RNA that contains the information for making a protein is called messenger RNA (mRNA) because it carries the information, or message, from the DNA out of the nucleus into the cytoplasm.
What are phytoplankton and zooplankton?
microscopic plants and animals
fossils of plants and animals
types of fossils fuels
stored solar energy
Answer:
microscopic plants and animals
Write a non-fiction newspaper article to protect the green sea turtle.
Answer:
Saving the Green Sea Turtle Cheyanne Faith YbarraThe green sea turtle, also known as the green turtle, black turtle, or Pacific green turtle, is a species of large sea turtle found in warm subtropical and tropical ocean waters. The green sea turtle is an endangered species and its population number decreases every year. Recent estimates show us that there are 1.5 million green sea turtles worldwide, and only 300,000 remaining in the Caribbean. Researchers estimate that 4,600 green sea turtles perish each year because of fishing gear, poachers, vessel strikes, loss of foraging habitat, entanglement in or ingestion of marine debris, and the harvesting of their eggs. We can stop the green sea turtles from going extinct by making fishing gear safe for the turtles, staying away from their nesting areas, protect them from poachers, stop the harvesting of their eggs, and keeping the oceans and beaches clean so there is nothing to strangle or poison them. These are just a few ways people can help save the green sea turtles from going extinct.
(I hope this helps you!)
Please help! Questions in the picture, giving brainiest to the best answer!
Answer:
This makes them move faster and further apart and the substance expands. This makes the object's volume increase which changes causes the density to decrease.
When a substance is cooled, the particles lose energy. This makes them move slower and closer together and the substance contracts. This makes the object's volume decrease which changes causes the density to increase.
Explanation:
When an object is heating up its molecules will move faster and expand the object, this means the volume is increasing. Density is equal to mass over volume meaning if the volume is increasing the density will decrease. The opposite is true for when the substance is cooled. Molecules will move slower and the object will contract. The volume will decrease and the density will increase.
Answer:
This makes them move faster and further apart and the substance expands. This makes the object's volume increase which changes causes the density to decrease.
When a substance is cooled, the particles lose energy. This makes them move slower and closer together and the substance contracts. This makes the object's volume decrease which changes causes the density to increase.
Explanation:
When an object is heating up its molecules will move faster and expand the object, this means the volume is increasing. Density is equal to mass over volume meaning if the volume is increasing the density will decrease. The opposite is true for when the substance is cooled. Molecules will move slower and the object will contract. The volume will decrease and the density will increase.
What is the water cycle? Describe what happens.
Answer:
Evaporation, Condensation, Precipitation, Surface Runoff
Explanation:
Evaporation: Water turns into gas and goes into the clouds.
Condensation: Water vapor in the air is changed into liquid water.
Precipitation: Water leaves the cloud as rain, hail, or snow.
Surface Runoff: Water left on land after it rains.
What is a disadvantage of sexual reproduction? *
A. Produces fewer offspring
B. Produces many offspring
C. Offspring are diverse
D. Offspring are identical
plz help thank you have a great day or night
Do this ill give 100 pts plss and if your not gonna do it dont awnser at all
Actually this time
The Silk Road was important because it helped to generate trade and commerce between a number of different kingdoms and empires.
I try my best
PLEASE HELP ME EMERGENCY PLEASE HELP!! IF YOU ARE NOT 100% SURE ABOUT YOUR ANSWER DO NOT ANSWER THEN PLEASE!!
True or False: Asthma is a disease that affects all NYC residents equally.
True
False
(This is 7th grade science)
First of all, asthma isn't even a disease. It's a symptom. Also, asthma affects anyone, and not NYC residents equally.
Please help!! Questions In Picture, giving brainiest to best answer!
1. contracts 2. increase 3. move apart 4. density 5. cool down 6. decrease 7. move closer sorry if there not correct
Answer:
Explanation::
What is a natural resource? Give 3 examples.
Answer:
Oil, coal, natural gas,
Explanation:
I need this asap UvU
A water feature that could be a source of groundwater for humans is found at a location on a hillside where Earth’s surface is lower than the water table.
What type of feature might be observed at this location?
spring
aquifer
artesian well
unsaturated zone
Answer:
artesian well i think
Explanation:
Can someone give a list of Detritivores in this pic?
Has there ever been a time where this much snow has fallen on San Antonio? (Especially, on more than one day.)
Which statements describe vascular tissue? Check all that apply.
a)The primary purpose of vascular tissue is to support the plant and help it stand upright.
b)Phloem carries food made during photosynthesis to other parts of the plant.
c)Phloem contains the chloroplasts.
d)Xylem moves water and nutrients throughout the plant.
e)Xylem is the protective, waxy layer on a plant that prevents water loss.
Answer:
a, b, and d are the correct answers
Explanation:
Answer:
b and d
Explanation:
EXPERT HELP: EXPLAIN THE ANSWER PLEASE DON'T GUESS
Answer:
c
Explanation:
I did the quiz and got 100
please help and don't put nothing if you can't see it or don't know it
Answer:
#1 - you can make all of the batteries connect through the wire and use all the nails and batteries
Answer:
#1 - you can make all of the batteries connect through the wire and use all the nails and batteries
Idc if you guys answer im just trying to prove someone something
Answer:
The energy will be increased
Answer:
When rubbing a balloon with a wool cloth, it puts negative charges on the balloon. Negative charges attract to positive charges. If a balloon is not rubbed with the wool cloth, it has an equal amount of negative to positive charges, so it will attract to a rubbed balloon
Open your imagination. Good Luck Answering!
Answer: Check picture
Which are lymphocytes?
Answer:
It's the third one
Explanation:
5. For the picture below, write the season (winter, fall, spring or summer) that is happening ineach of the 4 positions shown as the Earth revolves around the sun.
1: N Hemisphere____
1: S Hemisphere_____
2 N Hemisphere______
2. S Hemisphere_____
3: N Hemisphere____
3. S Hemisphere____
4. N Hemisphere____
Answer:
1. Autumn
1. Spring
2. Winter
2.Summer
3. Spring
3. Autumn
4. Summer
Explanation: