In terrestrial habitats, the lungs and tracheae remain open to ensure efficient gas exchange. This allows for the intake of oxygen and the removal of carbon dioxide during respiration.
The open structure of the lungs and tracheae facilitates the flow of air, enabling the exchange of gases between the respiratory surface and the surrounding environment.
In terrestrial habitats, the open nature of the lungs and tracheae is essential for the respiratory system to function optimally. The lungs are the main organs responsible for gas exchange in mammals, including humans. They are composed of numerous air sacs called alveoli, which have thin walls and are surrounded by capillaries. When we breathe in, the diaphragm contracts, expanding the chest cavity and creating negative pressure. This draws air into the lungs through the trachea, a tube supported by rings of cartilage. The trachea branches into smaller tubes called bronchi, which further divide into bronchioles, leading to the alveoli.
The openness of the lungs and tracheae allows air to flow freely, ensuring efficient gas exchange. Oxygen from the inhaled air diffuses across the moist, thin walls of the alveoli into the surrounding capillaries, where it binds to red blood cells for transport to body tissues. At the same time, carbon dioxide, a waste product of cellular respiration, diffuses from the capillaries into the alveoli to be expelled during exhalation. This exchange of gases relies on the continuous flow of air through the respiratory system, which is made possible by the open structure of the lungs and tracheae.
Additionally, the tracheae, with their rings of cartilage, provide structural support and prevent the collapse of the airways during breathing. The rings of cartilage keep the trachea open, maintaining a clear passage for airflow. This prevents obstruction and ensures that the lungs receive an adequate supply of oxygen and can effectively remove carbon dioxide.
In summary, the lungs and tracheae remain open in terrestrial habitats to enable efficient gas exchange. The open structure of the lungs allows for the free flow of air, facilitating the exchange of oxygen and carbon dioxide between the respiratory surface and the environment. The tracheae, supported by cartilage rings, provide structural support and maintain a clear pathway for airflow, preventing the collapse of the airways. Together, these adaptations ensure the respiratory system functions effectively in terrestrial environments.
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What makes echinoderms unique to all other animals? (think of systems/structures they
have that no other animal has!)
Please help me out!
Which of the following is NOT true about the chromosomes in your body?
-Include 46 total chromosomes
-Include 2 sex chromosomes
-Exist in 46 pairs
-Exist in 23 pairs
Answer:
Exist in46 pairs
Explanation:
Describe the basic structure of the cell membrane with regard to specific molecules. What is it made out of?
Answer: The cell membrane is made up of phospholipids and the overall name is the Phospholipid bi-layer
Explanation:
The cell membrane has two rows of phospholipids. A phospholipid is broken into two parts, the heads and tails. The heads are hydrophilic (water-loving) and point to the outside and inside regions making the inner and outer wall, while the tails are hydrophobic (water-hating) and face each other to make the inside of the membrane. There are also molecules of cholesterol and proteins throughout the membrane.
Phospholipids are the building blocks of a cell membrane. A single phospholipid molecule consists of two ends: the head and the tail.
What are phospholipids?Phospholipids are amphiphilic molecules with both hydrophobic and hydrophilic fatty acid chains.
They are found in all living organisms as the primary components of cell membranes. Nature contains a variety of phospholipid classes with varying polar moieties.
Phospholipids are glycerol esters, fatty acid esters, phosphoric acid esters, and other alcohol esters.
Phosphatidylcholine, phosphatidylethanolamine, phosphatidylinositol, and phosphatidylserine are the most common phospholipids.
The phospholipid bilayer, which forms a stable barrier between two aqueous compartments, is the membrane's fundamental structure.
These compartments are the inside and outside of the cell in the case of the plasma membrane.
Thus, this is the basic structure of the cell membrane with regard to specific molecules.
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Which of these has a warming effect on Earth? O A. More evaporation of water due to warmer temperatures causes low, thick clouds to form. O B. More evaporation of water due to warmer temperatures increases water vapor, forming high, thin clouds. C. Earth's oceans absorb carbon dioxide from the atmosphere D. Rising carbon dioxide levels spur plant growth, causing increased carbon dioxide absorption.
Answer:
A
Explanation:
Thick clouds can trap lots of heat. This has a warming effect on earth.
Answer:
B.. More evaporation due to warmer temperatures increases water vapor, forming high, thin clouds
Explanation:
Thin clouds don't reflect as much sunlight as low, thick clouds do. Because of that more sunlight enters the atmosphere and increases global warming
If you know please help
Answer:
A. freeze at the same temperature at which it melts, depending on whether the temperature is rising or falling.
Explanation:
Option A is the correct.
Freezing and melting are two changes that occur in the state of matter. Freezing is known to be the change that occurs when a substance (liquid) changes to solid when there is a decrease in temperature. While melting is known to be the opposite and it refers to the change that occurs when a solid changes to liquid as a result of increase in temperature.
When substances freeze, they do so in the same temperature as they melt. This is true because both freezing and melting actually describe similar transition of matter. So, it depends whether temperature is rising or whether it is falling.
Please help ASAP!
How would a cell wall aid a plant during a period of heavy or prolonged rainfall?
Answer:
The cell wall surrounds the plasma membrane of plant cells and provides tensile strength and protection against stress
Explanation:
The cell wall aid a plant during a period of heavy or prolonged rainfall by providing structural support, prevents water damage, regulates water uptake and maintains turgor pressure.
What is a cell wall?Cell wall is the outermost covering of the cell above the plasma membrane, which plays an important role in helping the plant survive during periods of heavy rainfall and prolonged rainfall.
The ways in which it provides protection are:
Structural support- It provides necessary strength and rigidity to the plant, which helps it to stand upright and not collapse under the weight of water.Prevents water damage- It acts as a barrier by preventing water from entering the cells and causing damage to the plant internal structure.Regulates water uptake- It controls the flow of water into the plant, which helps regulate the water uptake and prevent the plant from taking in too much water.Maintains turgor pressure- It also helps to maintain turgor pressure.Hence, the cell wall provides significant support and protection for the plant during periods of heavy and prolonged rainfall.
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When alleles are neither dominant or recessive, so both alleles are expressed, is
called what?
I
Answer:
hmoocigtoos
Explanation:
homocigotios
Why type of cells in your body are created through the cell cycle and mitosis?
Mitosis is a way of making more cells that are genetically the same as the parent cell. It plays an important part in the development of embryos, and it is important for the growth and development of our bodies as well. Mitosis produces new cells, and replaces cells that are old, lost or damaged. Hope I helped! ^^
__________________________________________________________
有糸分裂は、親細胞と遺伝的に同じであるより多くの細胞を作る方法です。それは胚の発達において重要な役割を果たしており、私たちの体の成長と発達にとっても重要です。有糸分裂は新しい細胞を生成し、古い、失われた、または損傷した細胞を置き換えます。私が助けてくれたらいいのに！ ^^
How could physical barriers, such as a river or rift, lead to allopatric speciation
Answer:
This barrier prevents the individuals on one side from reproducing with the individuals on the other.
Explanation:
Hope this helps
List the four steps of mitosis in order. Describe what is happening during each phase.
Answer:
The four stages of mitosis are known as prophase, metaphase, anaphase, telophase. Additionally, we'll mention three other intermediary stages (interphase, prometaphase, and cytokinesis) that play a role in mitosis. During the four phases of mitosis, nuclear division occurs in order for one cell to split into two.
Explanation:
What are the answers for questions 4 and 5?
Answer:
4. D (enzymes 1 and 3 works equally well in an acidic and alkaline environment respectively)
5. C. 2; 7; 9.5
Explanation:
The image attached to this question shows a graphical representation of the pH ranges for three enzymes. According to the image;
- Enzyme 1 reached its peak reaction rate at pH 2 (acidic)
- Enzyme 2 reached its peak reaction rate at pH 7 (neutral)
- Enzyme 3 reached its peak reaction rate at pH 9.5 (basic)
This result means that enzymes 1, 2 and 3 will work well and effectively at an acidic, neutral and alkaline environment respectively. Likewise, the optimal pH level for enzymes 1, 2 and 3 are 2; 7; and 9.5 respectively.
A student examining an unknown cell under a microscope notes it has a cell wall, cytoplasm, and genetic information contained within a nuclear membrane. Which inference would be correct?
Answer:
It is a eukaryotic cell
Explanation:
Eukaryotic cells have membrane-bound organelles (in this case the cell has a nuclear membrane with genetic information).
Bacteria, archaea, fungi, plants, and algae have a cell wall
What type of plate boundary is illustrated in the image?
Answer:
convergent is your answer
Answer:
convergent
Explanation:
convergent is when 2 plates collide into each other
Determine the type of air mass that typically plays a role in the weather in your area. Describe the
type of weather that commonly is associated with the air mass and where the air mass originates. Describe the seasons in your area which result from that air mass.
Answer:
There are four categories for air masses: arctic, tropical, polar and equatorial. Arctic air masses form in the Arctic region and are very cold.
Explain how ligand A and ligand B can cause identical cellular responses in a cell.
Answer:
if A and B are both dominant/recessive then they are the same
Explanation:
I'm not to sure but I think it's right
hope this helps : )
Fill in the blanks the world banks the word bank is on the picture provided below :)
Answer:
1 is pioneer species 2 is limiting factor 3 is ecological succession
Explanation:
Answer:
1) pioneer
2) limiting factor
3) ecological succession
A couple has five children, all with blood type A. The mother's blood type is O, and the fathers blood type is A. Based on this info, what is the most probable genotype of the father?
Answer:
Homo-zygous, or AA
Explanation:
Since the mother's type is recessive O, the man's blood type A would be dominant. And because none of the children gained B or O blood types, it is likely the father only has A. This indicates homo-zygous (same) genotype, thus meaning his blood type is AA.
the reason for the dash between homo-zygous is because Brainly tagged it as inappropriate?
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.
most common type of arch, loop and whorl?
Answer:
yes
Explanation:
most common pattern being found in 65 to 70 percent of all fingerprints
Each of the following is a density-dependent limiting factor EXCEPT:
- crowding
- predation
- competition
- disease
Answer:
predation
Explanation:
predation
I hop this answer is correct
Answer:
Disease
Explanation:
The predominant plants found in the savanna are grasses, and there are only a few isolated or small clusters of trees. Which abiotic factor helps to maintain the savanna as a grassland rather than a forest?
A Loose Soil
B Abundant rainfall
C warm temperatures
D lightning Fires
PLEASE HELP
Loose soil is the abiotic factor which helps to maintain the savanna as a grassland rather than a forest. Thus, the correct option is A.
What are abiotic factors?Abiotic factors are those components of the ecosystem which are non-living. Abiotic factors include soil, temperature, rainfall, fire, etc.
Savanna is a biome which contain predominantly grasses with a few isolated or small clusters of trees in the ecosystem. The loose soil in this biome is mainly responsible for maintaining savanna as a grassland rather than a typical forest.
Loose soil is an abiotic factor which is responsible for the forestation of an ecosystem. It is difficult for the big trees to hold the loose soil whereas the grass have their perennating organs protected below the surface of the soil. Thus, they are favored in the savanna biome.
Therefore, the correct option is A.
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I don’t understand this so please help
Answer:
all I see is dots lines and circles
Explanation:
How are gay marriaged babys made to be biological?
Answer:
if its a couple with a trans man (female to male) they can have a baby if they havent had surgery.
a trans woman (male to female) can also have a biological baby with a woman if they havent had surgery.
They could also have had a baby in a past relationship though it wont be biological to the other parent.
Which of the following IS
an example of reproductive isolation?
O two populations
of finches that cannot produce viable offspring
O two populations of finches that have different feather colors
• two populations of salamanders that live in different lakes
O two populations of salamanders that
have different tail lengths
An example of reproductive isolation is two populations of salamanders that live in different lakes. Thus, the correct option is C.
What is Reproductive isolation?Reproductive isolation may be defined as the inability of a species to interbreed successfully with related species members due to isolating mechanisms.
Reproductive isolation may leads to speciation. A single specie scan generates multiple species via reproductive isolation. The members of the same species undergo reproductive isolation due to several isolating mechanisms.
The isolating mechanisms include geographical, behavioral, physiological, or genetic barriers.
Therefore, the correct option for this question is C.
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What is found between stars that looks like smoke?
Answer:
gases of nitrogen and many more
What determines the amount of biomass a given trophic level can
support? *
Explanation:
cci3iviiti i ri ii4i i i4i krivi irj jrj jvj3i. ikeo o49 kr
All of the following are types of somatoform disorders except __________.
A.
conversion disorder
B.
obsessive-compulsive disorder
C.
somatization disorder
D.
hypochondrias
Answer:
B.
obsessive-compulsive disorder
Explanation:
The types of somatoform disorders does not include the obsessive-compulsive disorder.
What is somatoform disorders?Somatic symptom disorder (SSD should be called as the somatization disorder or somatoform disorder. It is the form of mental illness that leads into one or more symptoms such as pain.
Therefore, it include the conversion disorder, somatization disorder, hypochondrias
Hence, the option b is correct.
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WILL GIVE BRANLIEST. 30 POINTS
Explain the three ways genetic variation can occur in a population.
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How do we differentiate between infectious and noninfectious diseases.
Answer:
Infectious diseases are caused by the passing of one person to another. Corona is an example. Noninfectious diseases, they are just spread by pathogens. Good luck!
Global measurements indicate that, in the late 2000s, sea levels steadily rose. Rising sea
levels lead to the migration of marshlands further inland. The environmental changes
caused by rising sea levels have the potential to?
O increase the stability of marsh habitats.
decrease the stability of marsh habitats.
O increase the biodiversity of organisms in marsh habitats.
alternately increase and decrease the biodiversity of marsh habitats.
Answer:
My Game is José Fernando Tengo 12 YEARS OLD
The environmental changes caused by rising sea levels have the potential to alternately increase and decrease the biodiversity of marsh habitats.
What is Biodiversity?Sum total of all the varieties of living organisms in a particular space, is known as its biodiversity.
As the sea levels steadily rose, it will firstly increase the biodiversity of marsh habitats, but sea level constantly rising, will affect its biodiversity, and organism that is native to marshy habitat should be eliminated while those organisms that are able to survive in inland habitat will migrate into it, overall causing the decrease meant of biodiversity of marshy habitat.
Therefore, the environmental changes caused by rising sea levels have the potential to alternately increase and decrease the biodiversity of marsh habitats.
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