Explain why respiratory surfaces must be moist
Answers
Answer:
In animals, the process of respiration is aerobic respiration, exchange of gases takes place ( carbon dioxide leaving the cell, oxygen entering)
Single cellular organisms can exchange gases directly across their cell membrane through the process o diffusion.
Large animals cannot maintain gas exchange by diffusion across their outer surface. A respiratory surface is covered with thin, moist epithelial cells that allow oxygen and carbon dioxide to exchange. Those gases can only cross cell membranes when they are dissolved in water or an aqueous solution, thus respiratory surfaces must be moist.
Explanation:
Answer:
so that carbon dioxide and oxygen can exchange
Explanation:
Those gases can only cross cell membranes when they are dissolved in water or aqueous solution.
Related Questions
Match the type of grassland with the correct description. a. temperate grassland where prairie dogs can be found b. temperate grassland in the eastern portion of Midwest c. tropical grassland that is home to large herds of grazing animals d. temperate grassland with grasses that grow two to three feet tall words: savannah, short grass prairie, mixed-grass prairie, tallgrass prairie
Answers
Matching grassland descriptions to correct terms
A) Temperate grassland where prairie dogs can be found :
SavannahB) Temperate grassland in the eastern portion of midwest
Short grass prairieC) Tropical grassland that is home to large herds of grazing animals
Mixed-grass prairieD) Temperate grassland with grasses that grow two to three feet tall :
Tallgrass prairie Types of grasslandsThe savannah is grassland area with more grasses than trees while the trees are occasionally present, the amount of rainfall here is moderate and the weather conditions are moderate as well, prairie dogs are found in this kind of vegetation.
Short grass prairie experiences little rainfall which favors the growth of short grasses while Mixed grass prairie is a mixture of both short and tall grasses. It is home to many herbivorous animals.
Hence we can conclude that the answers matching your description is a s listed above.
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Answer:
The answer is wrong. I just took the Quiz
These are the correct answers. You’re welcome.
1. Savannah- d
2. Short grass prairie- a
3. Mixed grass prairie- b
4. Tall grass prairie- c
Explanation:
I didn't do these, I'm just saying that the person who commented on the tutor verified is correct give him all the credits
What molecule do bacteria take in (use up)?
Oxygen
Carbon Dioxide
Water
(This is 7th grade science)
Answers
Give three importance of carbon cycle in maintaining balance in the composition of the environment
Answers
Answer:
Carbon compounds regulate the Earth's temperature, make up the food that sustains us, and provide energy that fuels our global economy.
How is the carbon cycle important to the balance of nature?
The carbon cycle is vital to life on Earth. Nature tends to keep carbon levels balanced, meaning that the amount of carbon naturally released from reservoirs is equal to the amount that is naturally absorbed by reservoirs. Maintaining this carbon balance allows the planet to remain hospitable for life.
What is the role of the carbon cycle in maintaining balance in the composition of air in the environment?
As plants and animals die, the carbon they were storing gets released back into the atmosphere and the cycle continues. Left undisturbed, the carbon cycle will keep the concentrations of carbon dioxide in the atmosphere balanced and global temperatures steady.
What are three ways that we can help to keep the carbon cycle balanced?
We can maintain the carbon cycle by burning less fossil fuels and using more solar energy or using wind power. Trees also use carbon dioxide through photosynthesis to make glucose, so we could also maintain it by cutting down less forests.
Hope this helps :)
Pls brainliest...
*
What helps prevent bacteria from entering your lungs? *
HURRY!
Answers
Answer:
MUCUS
Explanation:
Marine Science
Why isn’t the atmosphere a closed system?
a. closed systems only exist in theory
b. closed systems are only for liquids, not gases.
c. The laws of physics do not apply to the atmosphere.
d. Gases from Earth escape from the higher realms of the atmosphere.
Answers
The answer to Why isn’t the atmosphere a closed system?
D. Gases from Earth escape from higher realms of the atmosphere.
Explanation:
Hope this helped^^
Cystic fibrosis is a genetic disorder in which a particular gene does not make protein the way that it otherwise normally would. Given that cystic fibrosis is a genetic disorder, how would an individual most likely contract this disease?
F A person’s parents would have to carry genetic material for cystic fibrosis within their chromosomes which could then be passed down.
G A person’s parents would have to carry genetic material for cystic fibrosis within their mitochondria which could then be passed down.
H A person would have to have been exposed to environmental influences such as living next to a nuclear power plant.
J Genetic disorders can be inherited in so many ways that it is impossible to tell how a person acquired the disease.
Answers
Answer:
Answer Is B
Explanation:
Just took the test
The receptor of sound waves in the ear is the
O a. pinna.
O
b. ossides.
O c. organ of Corti.
O d. tympanic membrane.
Answers
Organ of Corti is considered as body's microphone. It is present on basilar membrane which is floor of cochlear duct. Mechanoreceptors of ear are present in organ of Corti. On the internal side of organ of Corti, many hair cells are present. These hair cells are the sensory receptors for sound. When there is fluid motion in the ear due to sound waves, these hair cells generate electric signals which are then sent to brain and sound is perceived.
some enveloped animal viruses enters a host cell bymultiple choiceinjecting their dna or rna into the host cell.fusion of their envelope with the host cell's plasma envelope.endocytosis.all of the above.both b and c.
Answers
Enveloped animal viruses can enter a host cell by any of the options listed, which include injecting their DNA or RNA into the host cell, fusion of their envelope with the host cell's plasma membrane, and endocytosis.
- Injecting their DNA or RNA into the host cell: This process involves the virus using specialized structures called "virion-associated proteins" to bind to receptors on the surface of the host cell, which triggers the release of the viral genetic material into the host cell's cytoplasm.
- Fusion of their envelope with the host cell's plasma membrane: This mechanism involves the virus using viral surface proteins to bind to host cell receptors, which then triggers the fusion of the viral envelope with the host cell's plasma membrane, allowing the viral genetic material to enter the host cell.
- Endocytosis: This process involves the virus being engulfed by the host cell's membrane, which forms a vesicle around the virus. The vesicle then moves into the host cell's cytoplasm, where it fuses with other cellular membranes to release the viral genetic material into the host cell.
Hence, Enveloped animal viruses can enter a host cell by any of the options listed, which include injecting their DNA or RNA into the host cell, fusion of their envelope with the host cell's plasma membrane, and endocytosis.
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Necesito una opinión breve sobre la violencia doméstica. POR FAVOR, la necesito breve.
Answers
Answer:
La violencia doméstica (también conocida como violencia familiar) ocurre cuando alguien usa la violencia o la manipulación para mantener el poder y el control sobre alguien cercano. Puede implicar violencia, intimidación, amenazas, insultos o manipulación psicológica. No es aceptable en ningun lugar del mundo en ninguna circunstancia. La personas que han sufrido Violencia Domestica deben buscar por apoyo cuanto antes.
Explanation:
a+population+of+mice+is+in+h-w+equilibrium.+sampling+techniques+count+16%+of+the+organisms+are+homozygous+recessive.+what+percent+are+homozygous+dominant
Answers
Total, 6% of the organisms in the population are homozygous dominant.
In a Hardy-Weinberg equilibrium, the frequency of alleles remains constant from generation to generation. The Hardy-Weinberg equilibrium equation states that the frequencies of genotypes in a population can be expressed as;
p² + 2pq + q² = 1
where;
p = frequency of the dominant allele
q = frequency of the recessive allele
Given that 16% of the organisms are homozygous recessive (q² = 0.16), we can calculate q;
q² = 0.16
q = √0.16
q ≈ 0.4
Since p + q = 1, we can calculate p;
p = 1 - q
p = 1 - 0.4
p ≈ 0.6
To determine the percentage of individuals that are homozygous dominant (p²), we can square the value of p and multiply by 100;
Homozygous dominant percent = p² × 100
Homozygous dominant percent = (0.6)² × 100
Homozygous dominant percent ≈ 36%
Therefore, approximately 36% of the organisms in the population are homozygous dominant.
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--The given question is incomplete, the complete question is
"A population of mice is in Hardy-Weinberg equilibrium. sampling techniques count 16% of the organisms are homozygous recessive. what percent are homozygous dominant."--
a vesicle that contains hydrolytic digestive enzymes is called a
Answers
Lysosome are the vesicle that contains the hydrolytic digestive enzymes and they are membrane bound organelles.
Lysosome are the membrane- bound organelles that contain a wide variety of hydrolytic enzymes, which are used to break down food motes and other organic material that enters the cell. The hydrolytic enzymes within the lysosome are able of breaking down proteins, fats, and carbohydrates into their constituent nutrients.
Also, lysosomes are suitable to digest bacteria and other foreign material that enters the cell. Lysosomes are essential for cellular homeostasis and play a crucial part in cell form and recycling. likewise, in some cells, lysosomes are used to produce energy by breaking down stored fats and carbohydrates.
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A sample of dna was incorrectly collected and sealed in a plastic container. What is likely to impact the integrity of the evidence based on this storage method?.
Answers
When collecting DNA samples, always utilize cardboard containers (bags, boxes, and envelopes). Paper wrapping helps the product to dry completely because it is permeable. Avoid packaging items in plastic or airtight containers.
Should plastic be used to preserve DNA?Put in sterile, plastic containers, tissue samples should be frozen as soon as feasible. They could be delivered the following day on dry ice or with cold packs.
Short answer: What is DNA?DNA, commonly referred to as deoxyribonucleic acid, is the genetic material carried by human and nearly all other organisms. The DNA of an individual can be found in almost all of their cells.
Who made DNA possible?Watson and Crick's groundbreaking theories substantially drew from of the work of many other scientists. Many people think that Francis Crick, an English physicist, and James Watson, an American biologist, produced DNA in the 1950s.
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Which of the following cause a postsynaptic transmission to stop? Check all that apply.-Diffusion of the neurotransmitter into the nearby extra-cellular fluid-Reuptake of the neurotransmitter by endocytosis-Degradation of the neurotransmitter in the synaptic clef
Answers
All of the options listed can cause a postsynaptic transmission to stop. Any decrease in the concentration of the neurotransmitter in the synaptic cleft can cause a postsynaptic transmission to stop.
Diffusion of the neurotransmitter into the nearby extra-cellular fluid can cause the concentration of the neurotransmitter in the synaptic cleft to decrease, making it less likely that the neurotransmitter will bind to the postsynaptic receptors and initiate another action potential.
Reuptake of the neurotransmitter by endocytosis involves the neurotransmitter being taken back up into the presynaptic neuron for recycling or degradation, which would remove the neurotransmitter from the synaptic cleft and prevent further binding to the postsynaptic receptors.
Degradation of the neurotransmitter in the synaptic cleft by enzymes can also prevent further binding to postsynaptic receptors.
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A himalayan rabbit's fur turns black when exposed to the cold, such as temperature during winter. Black fur will absorb more energy from the sun which helps keep the rabbit warm. How might change in fur color be harmful to rabbits in the wild?
Answers
Answer:
When exposed to cold such as during winter they aren’t camouflaged which makes them exposed for any hungry predators
Explanation:
What type of lens correct near-sightedness? (Myopia)
A. Converging (convex)
B. Converging (concave)
Answers
Answer:
B
Explanation:
are viruses and bacteria single celled organisms?
Answers
Answer:
Viruses are not cellular organisms they are more like groups of genetic materials and proteins, this is unlike bacteria which are single-celled microbes that do not contain a nucleus.
Who conducts electronic surveillance? What types of electronic surveillance impact your life? Are you paranoid about this? Ifopt, should you be? Explain why so why not.
Answers
Electronic surveillance is conducted by various entities, including government agencies, law enforcement agencies, intelligence agencies, and private organizations.
Types of electronic surveillance that impact people's lives include surveillance through communication interception, video surveillance, and data collection. Whether one should be paranoid about this depends on personal beliefs, concerns about privacy, and the extent of surveillance activities.
Electronic surveillance involves monitoring and gathering information through electronic means. It can be conducted by government agencies, such as intelligence agencies and law enforcement agencies, to gather intelligence, prevent crime, or ensure national security. Additionally, private organizations may engage in electronic surveillance for various purposes, such as monitoring employee activities or protecting their assets.
Types of electronic surveillance that impact people's lives include communication interception, where phone calls, emails, or text messages are monitored; video surveillance, where cameras are used to observe public spaces or private property; and data collection, where personal information is collected through online activities, social media, or digital services.
Whether one should be paranoid about electronic surveillance depends on individual perspectives. Some individuals may be concerned about the potential invasion of privacy and the misuse of personal information. Others may have a more trusting outlook, considering surveillance as a necessary measure for security and public safety. The level of paranoia may vary based on personal beliefs, experiences, and the extent of surveillance activities in a particular region or context.
Ultimately, the decision of whether to be paranoid about electronic surveillance is subjective. It is important for individuals to be aware of their rights, stay informed about surveillance practices, and make informed decisions about privacy and security based on their own values and concerns.
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How Is the Nature of the Geologic Activity That Is Observed Near a Plate Boundary Related to the Type of Plate Interaction That Occurs at That Boundary?
Answers
which of the following is not an abnormal component of urine? A. white blood cells C. albumin D. glucose E. urea
Answers
please help with these questions ( i will give an extra 10 points!)
Answers
2- die
3 not sure
4- tertiary
Each enzyme has an optimum pH at which it attains its maximum activity.
That optimum pH varies for each enzyme. The optimum range for pepsin is 1.5-2; for stomach lipase it is 4.0-5.0. Any change below
above the optimum pH range for a specific enzyme results in a decrease in enzyme action.
Which graph best represents the pH and enzyme action for lipase?
x
A
B
Reaction velocity
Reaction velocity
Answers
pH and temperature are two factors that affect the enzymes' structure and function. There is an optimum pH level for every enzyme, and above this one or below this one, the enzyme denaturalizes and its activity is affected. The graph is in the attached files.
How do enzymes depend on pH?Enzymes, like all proteins, are polypeptidic molecules. They need to get an accurate tridimensional structure to accomplish their function. There is a limited temperature and pH level at which they lose that structure and denaturalize.
The most accurate configuration for the best catalytic performance depends on the charge of the lateral chains and the environmental pH.
Enzymes have ionizable chemical groups in the lateral chains of their amino acids. Depending on the environmental pH, these groups will have a positive, negative, or neutral charge. There is an optimum pH level at which enzymes get the best configuration to accomplish their functions.
Most enzymes are sensitive to any change in pH, which might drastically affect their activity. So every enzyme has its optimum pH level, and any slight deviations will cause the enzyme denaturalization, hence, its activity loss.
In the attached files you will find the graph
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what is locomotion? explain.
Answers
Answer:
Locomotion;Movement of whole body of an Organism resulting in change in place is called locomotion (Voluntary Movement).Examples;Walking - RunningClimbing - FlyingSweeming - Creeping
-TheUnknownScientist 72
Answer:
Mark me as brainliest
Explanation:
Types of animal locomotion include walking, running, crawling, rolling, flying, climbing, swimming, skipping and jumping.
can
u answer questions 1-3, and write 4-5 sentces for each question
Walid Elkhatib, an Arab American, bought a Dunkin' Donuts franchise in Illinois. Ten years later, Dunkin' Donuts began offering breakfast sandwiches with bacon, ham, or sausage through its franchises.
Answers
The situation presented is that Walid Elkhatib, an Arab American, bought a Dunkin' Donuts franchise in Illinois. This is the central fact mentioned The situation states that Walid Elkhatib, who is an Arab American, purchased a Dunkin' Donuts franchise in Illinois.
The new development introduced is that Dunkin' Donuts began offering breakfast sandwiches with bacon, ham, or sausage through its franchises. This development is related to the breakfast menu expansion states that Dunkin' Donuts started providing breakfast sandwiches with options like bacon, ham, or sausage in its franchises. This information is introduced, highlighting the specific menu expansion.
Walid Elkhatib, an Arab American, purchased a Dunkin' Donuts franchise in Illinois. Dunkin' Donuts began offering breakfast sandwiches with bacon, ham, or sausage through its franchises The given situation includes Walid Elkhatib, an Arab American, who acquired a Dunkin' Donuts franchise in Illinois.
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Albumin concentration in blood can be analyzed in an empty blood collection tube containing no anticoagulant. This means that you are analyzing?
Answers
Albumin concentration in blood can be analyzed in empty blood collection tube containing no anticoagulant. This means that you are analyzing: Serum that has been obtained when no anticoagulants are mixed with whole blood and then centrifuged.
What is Anticoagulant ?The technique of preventing blood from clotting, in particular using an anticoagulant to stop blood clots from forming. Anticoagulation should be given to patients who have valvular heart disease and atrial fibrillation since they are at a high risk of stroke.
Anticoagulant drugs can be broadly classified into three categories: antagonists of vitamin K. Direct oral thrombolytics (DOACs) Heparins with a low molecular weight (LMWH)Learn more about Anticoagulant here:
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Which sequence correctly lists the different levels of biological organization, from the smallest and simplest to the largest and most complex?
Answers
The systems of organization in biology from simplest to largest is cells, tissues, organs, organ systems, whole multi-cellular organisms.
What is taxonomy?The term taxonomy refers to the scientific study of the classification of living organisms into various groups, orders and phyla.
The various levels of biological organization from smallest and simplest to the largest and most complex is; cells, tissues, organs, organ systems, whole multi-cellular organisms.
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There is a wide range of biological treatment systems for the purification of wastewater based on simple processes by which mixed populations of micro-organisms degrade organic material using it as a source of nutrients. As a Civil Engineer
Examine various types of aerobic micro-organisms involved in the biological treatment process of wastewater
Examine various types of anaerobic micro-organisms involved in the biological treatment process of wastewater
A filter has a head loss of 0.30 m when clean and 1.30 m after 24 hours of filtration at a rate of 1.5l/s. . Estimate the following if the filtration rate is changed to 2 l/s
i. head loss immediately after backwash
ii. verify head loss 10 hours later
Answers
Aerobic microorganisms are microorganisms that require oxygen to survive and carry out their metabolic processes. They have adapted to thrive in oxygen-rich environments and utilize oxygen as an electron acceptor in their energy production pathways.
1. Head loss immediately after backwash = 0.30 m
2. The estimated head loss 10 hours later would be approximately 1.717 meters.
In the biological treatment of wastewater, various aerobic microorganisms are:
Bacteria: Aerobic wastewater treatment systems frequently contain a variety of bacterial species, including Pseudomonas, Nitrosomonas, and Nitrobacter.
Fungi: Certain fungus, including Trichoderma and Aspergillus, may flourish in an aerobic environment and help break down the organic chemicals found in wastewater.
Anaerobic Microorganisms in Biological Treatment of Wastewater:
Methanogens: These organisms, which are found in anaerobic (oxygen-free) habitats, are members of the Archaea domain.
Acidogens: In anaerobic circumstances, complex organic molecules are broken down into more basic organic acids by acid-forming bacteria like Clostridium and Bacteroides.
The estimation of head loss for the given filter under different filtration rates:
Head loss when clean = 0.30 m
Head loss after 24 hours of filtration at 1.5 l/s = 1.30 m
To estimate the head loss at a filtration rate of 2 l/s, the relationship between the head loss and filtration rate is linear. We can then use this assumption to estimate the head loss at the new filtration rate.
Hence the rate of head loss increase per hour:
Rate of head loss increase = (Head loss after 24 hours - Head loss when clean) / 24 hours
= (1.30 m - 0.30 m) / 24 hours
= 1 m / 24 hours
= 0.0417 m/h
i. Head loss immediately after backwash:
When the filtration rate is changed to 2 l/s, we can estimate the head loss immediately after backwash by assuming a linear relationship between head loss and time. Since we don't have specific information about the duration of the backwash, we'll assume it takes a negligible amount of time. Therefore, the head loss immediately after backwash would be the same as the head loss when the filtration rate was changed.
Head loss immediately after backwash = Head loss when clean
= 0.30 m
ii. Head loss 10 hours later:
To estimate the head loss 10 hours after the change in filtration rate, we can use the rate of head loss increase per hour and calculate the additional head loss over the 10-hour period.
Additional head loss = Rate of head loss increase * Time
= 0.0417 m/h * 10 hours
= 0.417 m
Head loss 10 hours later = Head loss after 24 hours + Additional head loss
= 1.30 m + 0.417 m
= 1.717 m
Therefore, the estimated head loss 10 hours later would be approximately 1.717 meters.
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Which of the following does not require the use of ATP?
active transport
active transport
protein pumps
protein pumps
endocytosis
endocytosis
facilitated diffusion
Answers
Answer:
active transport
Explanation:
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Which of the following descriptions of the surface area of a maple-tree leaf best explains the relationship of structure to function ? A. The surface-area to-volume ratio of the leaf is very low to minimize loss of water . B. The surface -area-to-volume ratio of the leaf is very high to minimize waste elimination . C. The surface -area -to-volume ratio of the leaf is very high to maximize CO 2 intake . D. The surface -area -to-volume ratio of the leaf is very low to maximize photosynthesis .
Answers
Answer:
C. The surface -area -to-volume ratio of the leaf is very high to maximize CO 2 intake
In single celled organisms what are the materials primarily stored in?
Answers
Answer:
In single-celled organisms, materials are stored primarily in. ribosomes.
Mistletoe is a plant that lives on the branches of trees. The mistletoe plant sends its roots in through the bark of trees and takes away water and minerals that the tree needs.
Explanation:
Which reservoir of the carbon cycle changes the most and the quickest?
Answers
Answer:
The ocean plays a critical role in carbon storage, as it holds about 50 times more carbon than the atmosphere. Two-way carbon exchange can occur quickly between the ocean's surface waters and the atmosphere, but carbon may be stored for centuries at the deepest ocean depths.
Answer:
carbon C,, comes from burning of hydrocarbons ,,which is a component of oxygen hydrogen and carbon ,,,the reservior in which carbon changes is coke,,,carbon flow into the atmosphere is less than the one released and these causes global warming,,due to blockage of the ozone layer leading to rain acid which leads to corrosion of iron,,,,over 300 years the role of ocean has changed,the convectional currents from the see meets carbon due to oxidation,,Co is formed C +O=C0,, ,in 2014,,the rate of global warming increased due to imcrease of release of carbon to the atmosphere,,,
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Explanation: