Answer: When the diaphragm contracts, it moves inferiorly toward the abdominal cavity, creating a larger thoracic cavity and more space for the lungs. Contraction of the external intercostal muscles moves the ribs upward and outward, causing the rib cage to expand, which increases the volume of the thoracic cavity.
The movement of diaphragm and ribs govern the mechanism of ventilation in human lungs.
The ventilation in human lungs or pulmonary ventilation is defined as the process of intake of air during inhalation, and expiration as the release out of air. It is also termed as breathing.
What is the mechanism of pulmonary ventilation?The lungs are present in the thoracic cavity, with the diaphragm below the lungs separating the thoracic cavity from the abdominal cavity. The rib cage is present outside lungs and prevent them.
Inhalation process in pulmonary ventilationThe inhalation is the process of taking in air. The increase in the volume of lungs results in the increased movement of diaphragm to the abdominal cavity.
The intercostal muscles move upwards and the rib cage move outwards. Thus, the air is inhaled in the system.
Exhalation process in pulmonary ventilationThe exhalation of air is performed antagonist to the inhalation. The relaxation of diaphragm and the movement of rib cage results in the decreased volume of the lungs, and the air is expelled.
Thus, the movement of diaphragm and ribs govern the mechanism of ventilation in human lungs.
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If water is polar, state a liquid that you think is nonpolar, and justify your answer
How can you determine the number of bonds an atom can make
Answer:
The number of bonds for a neutral atom is equal to the number of electrons in the full valence shell (2 or 8 electrons) minus the number of valence electrons. This method works because each covalent bond that an atom forms adds another electron to an atoms valence shell without changing its charge.
What form of energy is responsible for producing changes that occur in Earth’s hydrosphere?
Answer:
the sun because energy from the Sun heats the Earth unevenly. As a result, convection currents develop in the atmosphere and ocean. These redistribute heat in the atmosphere and oceans.
Answer: Hydropower is created when rapidly flowing water turns turbines inside a dam, generating electricity. Nuclear energy is produced at power plants by the process of nuclear fission. The energy created during nuclear reactions is harnessed to produce electricity.
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There is the picture to the question
Answer:
DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
HELP ME WITH THIS PLEASE I REALLY NEED HELP I WILL GIVE U BRAINLY IF U GET IT RIGHT !!
what are the pros and cons of online school
Answer:
The Pros and Cons of Studying Online
Pro: Increased Flexibility. The biggest advantage to studying online is the increase in flexibility. ...
Con: Reputation. Many firms and institutions are quick to dismiss an online education. ...
Pro: Ease of Access. ...
Con: Lack of Social Interaction. ...
Pro: More Affordable. ...
Con: Fewer Courses.
Pros of Online Schools:
Time flexibility.
Availability.
24/7 access to course material..
Location flexibility.
Zero commute.
Self-Direction.
Multi-media presentations.
Variety of course options.
Cons of Online Schools:
Limited interaction with instructor.
Technology requirements.
Social interaction.
Campus environment.
Time management.
Stigma.
Credit transfer.
Financial aid.
Have a wonderful day!
If a cell has 40% solute and is placed in a solution with 60% water what will happen to the cell
There will be no net movement of water in or out of the cell.
Water moves out of the cell when a cell is placed in a hypertonic solution. This is a solution that contains more solute than does the cell. When a cell is placed in a hypotonic solution, water enters into the cell from the solution until the cell finally bursts. However, if the cell and the solution contain the same amount of solute, there is no net movement in or out of the cell.
We can see here that the cell has 40% solute and is placed inside a solution that has 60% water. This means that the solution also contains 40% solute. There will be no net movement of water in or out of the cell.
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Which component of the endomembrane system is responsible for packaging and preparing exist proteins in vesticles?
Answer: Golgi apparatus
Explanation: The Golgi is responsible for packaging sorting tagging and distribution.
Hope this is helpful :)
1. DNA base sequence: GACGATGTAGCATCGACCATTG.
What would the mRNA sequence for this sequence of DNA be?
Super easy. Please help
Answer:
Identical twins tend to be more similar to each other than fraternal twins do.
Explanation:
Neurons that respond to specific types of lines are examples of:
A. figure detectors.
B. top-down processors.
C. feature detectors.
D. figure processors.
Answer:
C
Explanation:
Neurons that respond to certain types of lines are examples of feature detectors found in Option C. Neurons are the monomeric units of the nervous system that play an important role in transmission.
What is the importance of the neuron?
The neuron is a unit in which the message is transmitted from the neuron to another neuron, and this can be done by either chemical signaling or by electric signaling. The neuron receives sensory stimuli from the sensory organ and transmits them to the spinal cord.
Later, the message from the spinal cord is sent to the motor organs, and the whole pathway of the neuron signaling from the sensory to the motor organ is called the reflex arc. The neuron takes part in the signaling process so that the muscle can function, regulate the contraction relaxation, and perform many other functions.
Hence, neurons that respond to certain types of lines are examples of feature detectors found in Option C.
Learn more about the neuron here.
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Drag the tiles to the correct boxes to complete the pairs.
Match the mRNA sequences to their DNA sequences.
HELP ASAP PLS IF U ANSWER U GET 40 POINTS THANKS
Explanation:
The grass help feeds the baboon. This means the baboon will have to poop out the grass. Then the dung bettle feeds off of that poop.
as a result of fertilization_____is formed
Answer:
zygote
Explanation:
Fertilization is the process in which haploid gametes fuse to form a diploid cell called a zygote. To ensure that each zygote has the correct number of chromosomes, only one sperm can fuse with one egg.
1) How is nondisjunction related to Down syndrome and other abnormal chromosome numbers?
2) State the differences between DNA and RNA
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I HAVE BEEN STUCK HERE FOR 5 MINUTES...!
vague repetitive pictures
Answer:
Should be C
Explanation:
D is wrong because standing out should mean they are spotted more easily, which means they get hunted down more often/ prey spot them easier
B is kind of weird because larger population = more competition, and I remember owls work alone
A is suspicious because they are both tawny owls and I don't understand how less food they need to be significant
C sounds plausible because the gray feather can be a "stronger" gene or something
The energy produced by respiration is the in the form of adenosine triphosphate or ____________
Answer:
ATP
Explanation:
Adenosine triphosphate
The Milky Way galaxy was given its name because of what it looks like when viewed from Earth.
True False
Answer:
false. we cant see the whole galaxy from earth.
Answer:
the answer is false
Explanation:
we can't see the milky way (galaxy) from earth, its impossible since its so far away. unless we used a telescope maybe, not sure but for this question its false. I hope this helped!
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A dichotomouys key is used to identify a plant. 1a. Leaves are spiny ......................Pinus taeda 1b. Leaves are broad..................... Go to 2 2a. Single leaf..........................Go to 3 2b. Many leaves....................... Go to 4 3a. Leaf edge is smooth..............Cornus florida 3b. Lead edge is rough...............Ulmus americana 4a. Leaflet edges are smooth........Albizia julibrissin 4b. Leaflet edges are rough.........Juglans nigra A plant has many broad leaves with rough edges. What type of plant is this? (1 point)
albizia julibrissin
pinus taeda
cornus florida
juglans nigra
Answer:
juglans nigra
Explanation:
I did my research and its correct I finished the quiz
1 B
2 C
3 D
4 C
5 A
The plant identified by the dichotomous key is juglans nigra.
What is a dichotomous key?A dichotomous key is a tool used to identify any plants and animals in the ecosystem.
They are identified by their morphological traits.
The key is made up of a set of paired assertions or clues about the qualities or attributes of the organisms.
It serves as a step-by-step guide to identifying each object.
Thus, the correct option is D, juglans nigra.
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PLS HELP!!!! 10PTS
Reproduction is not a life process still organisms spend a lot of energy on it. Give reason.
Answer:
Reproduction is not a life process, but still organisms spend a lot of energy on it. ... The reproduction is not necessary to ensure living but it is required to ensure that the continuation of the living organisms and generations of the next cycle of living. It is necessary for ensuring the stability of the population.
Reproduction also helps in increasing the population of the species. All the processes which are necessary to maintain life in an organism are called life processes. Reproduction is not considered a life process because it is not necessary to maintain life.
Why would the atomic number be better to identify an element than the atomic mass?
Answer:
because the atomic number tells you how many protons and neutrons there are
Explanation:
why cant you touch your palm to your shoulder? (on the same arm)
Answer: cause
Explanation:
Some people can some cant
can someone write me a essay of Photosynthesis for 30 points URGENT!!! It has to be highschool level
Answer:
Here, I got u homie!
Explanation:
Photosynthesis is the process through which green plants and other specific living organisms utilize light energy to convert water and carbon dioxide in to simple sugars. Through photosynthesis, green plants are able to manufacture their own food which is essential for their growth.
Plz give brainliest
What does the brain stem do?
Answer:
It connects the rest of the brain to the spinal cord, which runs down your neck and back. The brain stem is in charge of all the functions your body needs to stay alive, like breathing air, digesting food, and circulating blood.
Explanation:
Which of the following is not a premise of Cell Theory?
l. All cells arise from other cells.
ll. All living cells require water for survival.
lll. All living things are only composed of cells.
Choose 1 answer:
a. I only
b. ll and lll
c. ll only
d. lll only
All cellsarisefromothercells a I only
__________ is a method of wood harvesting that clears trees in an area in two or three cuts over several years.
A)
Seed-tree cutting
B)
Parthenocarpy
C)
Shelterwood cutting
D)
Selective cutting
E)
Clearcutting
Answer: E
Explanation: clearcutting
Answer fast please. !!!!!!!!!!!!!!!!!!A geologist who needs to curricula to rock formations in different areas can match exposed rock layers
true or false
Answer:
A geologist who needed to correlate two rock formations in different areas could match exposed rock layers? A geologist who needed to correlate two rock formations in different areas could match exposed rock layers. TRUE.Explanation:
Answer:
true
Explanation:
Please help due in 10 minutes!
Explain how genetic drift of alleles in a small population- and- describe 2 real world examples of genetic drift (I.e. The Founder Effect and The Bottleneck Effect)
Answer:A small population is formed with a larger population.
Explanation:The population don’t represent the genetic diversity’s of the original
Population, and there smaller size mean they may experience strong drift of generations.
What is true about the insanity defense?
It is defined in the Diagnostic and Statistical Manual of Mental Disorders.
It can be used only if a person is diagnosed with a specific disorder from the DSM.
It is a legal term used to determine if a person can be held accountable for a crime.
It is a legal term that helps to determine if a person committed a crime or not.
It cannot be used if a person was previously found to be responsible for a different crime.
It's a legal term used to determine if a person can be held accountable for a crime. Hope this helps; have a wonderful day.
Mitosis and budding are similar beu
O
Both processes are components of sexual reproduction
The offspring produced by both are genetically diverse
In both, the genetic material comes from a single parent.
O O
Both processes are more common in animals than in plants.
Answer:
animals would be your awnser you are welcome
Explanation:
