The respiratory systems of birds are very efficient at providing oxygen to the blood, which is necessary for birds to expend the energy necessary to fly. What feature of the bird respiratory system makes it more efficient than the respiratory systems of other animals?
Answer:
In birds, air flows through the lungs in a unidirectional manner through a bronchial system that is made up of primary bronchi, secondary bronchi, and tertiary bronchi called parabronchi, which are the functional units of gas exchange.
Explanation:
The respiratory system of birds has peculiar characteristics both in its structure and in the way its breathing is carried out. The respiratory system of birds is made up of the lungs, air sacs, trachea, bronchi, blood vessels and nerves. Compared to mammals, birds lack structures such as the ethmoid labyrinth and the thoracic cavity is not limited by the diaphragm. When the bird breathes in, the air is drawn directly from the bronchi to the posterior air sacs, where the air is stored. As the posterior air sacs expire they deflate, this causes the air to pass into the lungs, where oxygen is absorbed. The consumed air (which contains carbon dioxide harmful to the organism) is then lodged in the anterior air sacs, and the animal inhales fresh air again to send to the posterior air sacs. After exhaling the consumed air expelled from the anterior sacs (to the outside) and bringing fresh air from the posterior air sacs to the lungs. This dynamic in the respiratory system of birds, allows air movements unidirectionally through the lungs generating a higher oxygen content.
Most of the energy we use on Earth originates from the Sun.
O True
O False
Answer:
False
Explanation:
-
Answer:
false
Explanation:
it
is
false
I
think
HELP WITH THIS PLEASE
Explain why a protist living in salt water doesn’t need a contractile vacuole.
Answer:
Correct
Explanation:
ill give you a Brainliest if it is right
The diagram below shows a portion of the rock cycle.
At what location in the diagram is sandstone most likely formed?
A) Location A
B) Location B
C) Location E
D) Location D
Please help biology is making me mad cause it’s to much work
Answer:
..............
Explanation:
There are more smooth muscles in the body than skeletal muscles.
Answer:
True
Explanation:
There are more smooth muscles as opposed to skeletal muscles
Answer:
true
Explanation:
What is the greatest source of canton that enters the ocean from the atmosphere ?
Answer:
Carbon is an element that is essential to all life on Earth. Carbon makes up the fats and carbohydrates of our food and is part of the molecules, like DNA and protein, that make up our bodies. Carbon, in the form of carbon dioxide, is even a part of the air we breathe. It is also stored in places like the ocean, rocks, fossil fuels, and plants.
The carbon cycle describes the flow of carbon between each of these places. For example, carbon continually flows in and out of the atmosphere and also living things. As plants photosynthesize, they absorb carbon dioxide from the atmosphere. When plants die, the carbon goes into the soil, and microbes can release the carbon back into the atmosphere through decomposition.
Forests are typically carbon sinks, places that absorb more carbon than they release. They continually take carbon out of the atmosphere through the process of photosynthesis. The ocean is another example of a carbon sink, absorbing a large amount of carbon dioxide from the atmosphere.
Some processes release more carbon dioxide into the atmosphere than they absorb. Any process that uses fossil fuels—such as burning coal to make electricity—releases a lot of carbon into the atmosphere. Raising cattle for food also releases a lot of carbon into the atmosphere. These processes that release carbon into the atmosphere are known as carbon sources.
Ideally, the carbon cycle would keep Earth’s carbon concentrations in balance, moving the carbon from place to place and keeping atmospheric carbon dioxide levels steady. However, the carbon cycle is changing because of human activity. People are releasing more carbon into the atmosphere by using fossil fuels and maintaining large livestock operations. Deforestation is depleting Earth’s supply of carbon sinks. As a result, the amount of carbon in the atmosphere is rising.
Explanation:
hope this helps
mark me please
how can we make transportation better for nature?
Answer:by reducing fossil fuel along with farming industries and also humans reducing gas emissions which isn’t good for us to breathe let alone our animals
Explanation:
to build overpass with naturally grown grass as a bridge since they noemally follow the same path.
Which compound forms when the elements Mg and P combine?
A. Mg2P3
B. Mg2P2
C. Mg3P3
D. Mg3 P2
Answer:
D. Mg3P2
Explanation:
Magnesium phosphide has the formula of Mg3P2.
Magnesium-phosphide is a white, solid substance. It reacts with water and it is inflammable in the contact with air. It is a toxic substance that helps in making other chemicals.
It is usually used to burn raw substances, such as animal feeds, processed food commodities.
Easy 10 points Species resource
List all the facts you can pull from the graph?
Compare reef and lion population sizes , amount of fish , peaked at 6 , lionfish started to increase population size at round 11 and 12, reef fish started to decrease as lion fish grew .
Do you like Science Fiction? Do you think there are some factual components to Science Fiction? Do some research on Science Fiction books and pick one that you find interesting. Keep in mind that our class is EARTH-SPACE SCIENCE and use your initial background in the subject to pick your book. FYI: many Sci-Fi movies also come in a book form so if you want you could see if a movie you like is in book form. We will be using the book-or a portion of the book to write up a Science-Faction. Post the book you want to use here in the discussion.
Class Earth Science
help pleaseeeee
Yes I like science fiction.
They are not necessarily factual components, but they have their roots with factual components. In fact, many inventions are inspired by science fictions.
I would like to use this book.
Ender’s Game by Orson Scott Card
What does not happen In prophase
Answer:
Prophase is first phase of cell division in mitotic phase. It is marked by disappearance of nucleolus and nuclear membrane. Condensation of chromosomes takes place. ... After that cell division or cytokinesis occurs.
Explanation:
Hi! Nice to meet you and have a great day.
While the release of bioactive chemicals by the plant to protect itself from the insects attack is a
adaptation to avoid predators, while the release of bioactive chemicals by the plant to protect.
During cellular respiration, the covalent bonds of a molecule are broken down to form products. Which molecule is broken down?
O water
O carbon dioxide
sugar
O ADP
Answer:
sugar C ;D
Explanation:
Sugar is the molecule that is broken down during cellular respiration.
Glucose is a relatively large molecule and contains more energy in its bonds than smaller molecules. Therefore, by breaking it, energy is released that the body can use to perform its vital functions.
This breakdown occurs in cellular respiration, which is a catabolic process in which a fuel molecule, glucose (sugar), whose energy is trapped in the form of ATP (universal source of energy), is oxidized.
Glucose is oxidized and degraded to carbon dioxide and water, producing ATP.
The production of energy in the form of ATP generates heat, so ATP cannot be released all at once, but must occur gradually, in several stages: glycolysis, Krebs cycle and oxidative phosphorylation.
Therefore, we can conclude that sugar, which is the molecule that initiates respiration, is the molecule that is broken down during cellular respiration, which releases the energy stored in the chemical bonds of glucose.
Learn more here: https://brainly.com/question/22277507
Which of the following best describes why the disks rose to the surface faster in the more concentrated hydrogen peroxide solutions?
The higher substrate
Hope this helps ^-^ Diamonds is the name Thanks
The best description of the disks rose to the surface faster in the more concentrated hydrogen peroxide solutions, as the higher substrate concentrations in the more concentrated solutions speeded the reaction. The correct option is d.
What is hydrogen peroxide?Hair bleaching, surface cleaning, and tool disinfection are all done using hydrogen peroxide. It is also utilized in gardening and dental hygiene. Knowing that a highly regarded skin treatment may also be used as a household cleanser may be unsettling.
In the higher-concentration hydrogen peroxide solutions, the discs came to the surface more quickly. The reaction was sped up by the greater substrate concentrations in the more concentrated solutions.
Therefore, the correct option is d. The higher substrate concentrations in the more concentrated solutions speeded the reaction.
To learn more about hydrogen peroxide, refer to the link:
https://brainly.com/question/16107415
#SPJ6
The question is incomplete. Your most probably complete question is given below:
There was more enzyme present in the more concentrated solutions.
A greater amount of heat was generated in the more concentrated solutions.
The more concentrated solutions lowered the activation energy of the reaction.
The higher substrate concentrations in the more concentrated solutions speeded the reaction.
The density of the water was lower in the more concentrated solutions.
a magnetic field surrounds the earth. what do you think would happen without it?
What is the correct answer for this pls emt smart people 100%
2. What term is also used to describe insertion and
deletion mutations?
A. Gene regulation
B. Frameshift mutations
C. Crossing over
D. Substitutions
A patient has a history of poor nutrition he has skin rashes bleeding gums and a cut that hasn't healed in a long time what vitamin deficiency most likely caused this
Answer:
Vitamin C
Explanation:
The following symptoms are found in the disease known as scurvy which is characterized as a vitamin deficiency disease caused by skin rashes bleeding gums, joint pain, and stiffness more. It is caused by Vitamin C also known as ascorbic acid plays various roles in the development and growth and repair of the body cells and tissues. It is a water-soluble vitamin and deficiency of the vitamin result in scurvy or skin disease.
In binary fission, are the reproduced cells genetically the same or different from each other?
Answer:
Explanation:
Match the terms to their definition.
1. speed
a rate with a denominator of 1; a rate that shows an amount of something compared to 1 of something else
2. rate
an average rate comparing distance to time
3. unit rate
a type of ratio that compares two different kinds of quantities or numbers
4. complex fraction
a fraction with fractions in both the numerator and denominator
Match the terms to their definition.
1. speed
a rate with a denominator of 1; a rate that shows an amount of something compared to 1 of something else
2. rate
an average rate comparing distance to time
3. unit rate
a type of ratio that compares two different kinds of quantities or numbers
4. complex fraction
a fraction with fractions in both the numerator and denominator
Match the terms to their definition.
1. speed
a rate with a denominator of 1; a rate that shows an amount of something compared to 1 of something else
2. rate
an average rate comparing distance to time
3. unit rate
a type of ratio that compares two different kinds of quantities or numbers
4. complex fraction
a fraction with fractions in both the numerator and denominator
Match the terms to their definition.
1. speed
a rate with a denominator of 1; a rate that shows an amount of something compared to 1 of something else
2. rate
an average rate comparing distance to time
3. unit rate
a type of ratio that compares two different kinds of quantities or numbers
4. complex fraction
a fraction with fractions in both the numerator and denominator
Match the terms to their definition.
1. speed
a rate with a denominator of 1; a rate that shows an amount of something compared to 1 of something else
2. rate
an average rate comparing distance to time
3. unit rate
a type of ratio that compares two different kinds of quantities or numbers
4. complex fraction
a fraction with fractions in both the numerator and denominator
Match the terms to their definition.
1. speed
a rate with a denominator of 1; a rate that shows an amount of something compared to 1 of something else
2. rate
an average rate comparing distance to time
3. unit rate
a type of ratio that compares two different kinds of quantities or numbers
4. complex fraction
a fraction with fractions in both the numerator and denominator
A population that is becoming less diverse because of its individuals tending to be larger is most likely experiencing selection.
Answer:
A population that is becoming less diverse because of its individuals tending to be larger is most likely experiencing directional selection. The individuals that are larger are more favoured in the population, thus becoming less diverse.
Explanation:
Answer:
Directional
Explanation:
edge 2020
Hull fouling is a(n) _______ introduction of nonnative species.
a.
unintentional
b.
intentional
c.
unimportant
d.
land-based
Answer:
A
Explanation:
Hull fouling is an unintentional introduction of non-native species.
What do you mean by Species?Species may be defined as a group of organisms that can reproduce naturally with one another and create fertile offspring.
Hull fouling is the outcome of the accumulation of marine growth in the aquatic ecosystem. It indicates the arrival of any non-native species in the different habitats of the ecosystem. It is responsible for enhancing the level of biodiversity in a specific area.
Therefore, Hull fouling is an unintentional introduction of non-native species.
To learn more about Species, refer to the link:
https://brainly.com/question/1542287
#SPJ2
A genetic disorder in which an abnormal form of hemoglobin is produced is hemophilia. true or false
How are the testes and ovaries similar? A. Both connect internal reproductive organs to the exterior. B. Both transport sex cells from their site of production. C. Both produce sex cells. D. Both store mature sex cells.
Answer:
C. Both produce sex cells.
Can someone pls help me i’ll give brainliest!!
Answer:
8 protons, 8 neutrons, and 8 electrons
Explanation:
13. This diagram shows which cellular process?
a. Replication
b. Transcription
C. Translation
d. Mutation
Answer:
B
Explanation:
The cellular process which the diagram above shows is: C. Translation.
Translation can be defined as a cellular process through which a genetic code from a sequence of messenger ribonucleic acid (mRNA) molecule is decoded (translated) to a specific sequence of amino acids, during the synthesis of protein.
Form the given diagram, we can deduce that genetic code from a sequence of messenger ribonucleic acid (mRNA) molecule are being translated into a specific sequence of amino acids such as:
Adenine (A).Guanine (G).Cytosine (C).Uracil (U).Read more: https://brainly.com/question/21682578
ANSWER ASAP FOR A COOKIE!!
Ground water can flow deep into an underground layer of rock called a(n)————that can store water for a long time .
a. aqueduct
b. gene pool
c. aquifer
d. sanctuary
Sharing ecosystems with other species by establishing habitats that conserve
biodiversity in places where people live and work is called ecology
A life raft
B reconciliation
C reintroduction
D urban
Answer:
A
Explanation:
Hopefully this helps.
True or False: Mass changes when gravitational force changes.
Plz help
Answer:
yes it does
Explanation:
"Living things are found in their habitats. They interact with each other and their environment. This interaction is between biotic and abiotic factors."
Answer:
TRUE
Explanation:
All living beings that is found in the nature interacts with each other and with the nature and their surroundings. They are always found in their habitats. Different organism living in the biospheres interacts and adapts with each other and to their environment. Such study of interaction of organisms with their environment is called ecology. These interaction is always between the biotic factors and abiotic factors.
The biological influences of the living organisms when they react with the living part of the surrounding or the environment are called biotic factors. While interaction with the non living parts like soil, sunlight, wind,water, etc are called abiotic factors.