In this exercise we have to have knowledge of photosynthesis and knowing that oxygen is a direct product of the gas exchange of carbon dioxide.
How does photosynthesis occur?The process of photosynthesis happens when water and mineral salts are removed from the soil through the root of the plant and it ends up traveling through the stem to the leaves in the form of sap, which is called raw sap. The leaf absorbs sunlight through chlorophyll, the substance that gives the green color of plant leaves.
In this way we can say that in the process of photosynthesis we know that oxygen will be the direct product of carbon dioxide.
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what types of rocks are formed by the processes powered by the sun
igneous is the answer
A nurse is preparing to suction a client nasotracheally. what actions will the nurse plan to do? select all that apply
a. turn on the suction device and set the regulator at 240 mm hg
b. assess the heart rate and rhythm and bedside o2 saturation level
c. apply continuous suction and slowly withdraw the catheter while rotating it back and forth
d. place the patient in a semi-fowler's position
e. observe the patient color while suctioning
The nurse caring for a client after hip surgery enters the room to take the client's vital signs. which precaution(s) should the nurse use? (select all that apply.)
The carbon in coal, oil, and natural gas come from
When an animal cell is placed in a hypotonic solution, _____.
it will gain water and may burst
it will lose water and shrink
it will remain the same size
the cell's reaction cannot be determined
Answer:
It will gain water and may burst
Which substance is an energy source but is not regarded as a nutrient?
__________ of the plant glossopteris provided evidence for wegener's hypothesis for continental drift
Journalists are more ________ than the population as a whole.
_______ can be broken down in a human's liver and converted to atp
Answer:
(lactic acid) is the correct answer.
Explanation:
lactic acid can be broken down in a human's liver and converted to atp.
Cori cycle is the metabolic pathway, in this lactate which is produced by the method of anaerobic glycolysis.
The tolerance level of lactic acid is very limited in the human body,So the Lactic acid from the muscle moves out and enters the liver. As it enters into the human liver gets broken down, then it is converted into glucose and ATP.
Trans fats ____.
a. lower ldl or "bad" cholesterol levels
b. are essential in the diet
c. are most likely found in baked foods and fried foods
d. increase hdl or "good" cholesterol levels
e. are liquid at room temperature
Trans fats increase LDL or "bad" cholesterol levels. Option A is correct.
Trans fats are a type of fat that is found in some processed foods. They are created when vegetable oils are hydrogenated, which is a process that adds hydrogen atoms to the oil. This process makes the oil more solid and shelf-stable. However, it also makes the oil more unhealthy.
Trans fats can raise LDL cholesterol levels, which is a type of cholesterol that can increase the risk of heart disease. They can also lower HDL cholesterol levels, which is a type of cholesterol that can help protect against heart disease.
Trans fats are most likely found in baked foods and fried foods. They are also sometimes found in margarine, shortening, and some types of cooking oils. Limit your intake of trans fats. The American Heart Association recommends that you eat no more than 1% of your daily calories from trans fats. This is about 2 grams of trans fats for someone who eats 2,000 calories a day. Option A is correct.
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The 30 trillion or so cells in your body require a continuous supply of oxygen and nutrients and an unending removal of waste materials. the blood carries these materials in the body's circulation within a series of closed tubes, called
Why is it more difficult to estimate heritability in humans than in livestock or laboratory animals?
Answer:
It is more difficult to predict heritability in humans in comparison to laboratory animals or livestock is because humans cannot be used in the selective breeding experiments, which the animals go through. The artificial selection or the selective breeding refers to a procedure in which the laboratory animals are bred for a specific phenotype or trait. This procedure has been long used in experimental medical research.
Which characteristic makes a cell membrane selectively permeable answer?
the chemical nature of a membrane
What term describes when a young animal becomes capable of successful reproduction?
The answer is puberty and maturation. In this stage of reproduction the fertilization occurs in which new development of an organism arises. It simply means the birth of new specie and this is where animals became capable of successful reproduction.
Comment on how the fossil evidence of early life supports or contradicts the endosymbiotic theory
Final answer:
The fossil evidence of early life supports the endosymbiotic theory, which suggests that eukaryotic cells evolved from a symbiotic relationship with mitochondria and chloroplasts.
Explanation:
The fossil evidence of early life supports the endosymbiotic theory. This theory suggests that eukaryotic cells evolved from the symbiotic relationship between ancestral prokaryotic cells and mitochondria and chloroplasts.
The fossil record shows that mitochondria and chloroplasts are present in eukaryotic cells but not in prokaryotic cells. This supports the idea that these organelles were once free-living prokaryotes that were engulfed by a host cell and developed a symbiotic relationship with it.
Additionally, genetic sequencing and phylogenetic analysis have revealed that mitochondrial and chloroplast DNA are highly related to their bacterial counterparts, further supporting the endosymbiotic theory.
Fossil evidence supports the endosymbiotic theory by indicating a timeline that matches the proposed evolutionary path and by showing early eukaryotic cells with prokaryote-like structures.
The endosymbiotic theory posits that certain organelles in eukaryotic cells, particularly mitochondria and chloroplasts, originated as free-living bacteria that were engulfed by a precursor to modern eukaryotic cells. Fossil evidence of early life provides support for this theory in several ways.
Firstly, the presence of prokaryotic microfossils dating back 3.5 billion years suggests that prokaryotes were the dominant life forms long before eukaryotes appeared.
This timing aligns with the idea that eukaryotes evolved from prokaryotic ancestors. Fossil evidence indicates that eukaryotic cells appeared around 1.5-2 billion years ago, which supports the timeline proposed by the endosymbiotic theory.
Secondly, the fossil record includes evidence of primitive eukaryotic cells with structures resembling modern mitochondria and chloroplasts. These structures are consistent with the hypothesis that these organelles were once independent prokaryotic organisms.
However, fossil evidence alone cannot fully confirm the endosymbiotic theory. Genetic and molecular data, such as the similarity between the DNA of mitochondria, chloroplasts, and certain bacteria, provide additional support for the theory.
What is the role of a fungus’s fruiting body?
absorb nutrients
movement
produce spores
food production
Answer:
Option). produce spores.
Explanation:
The fruiting body of fungi is also known as sporocarp or fruit body that represents a multicellular, spore-forming structure. It is the part of sexual phase of life cycle of fungi, by which spores (such as asci) are produced.
The spores present in fruiting body are dispersed for sexual reproduction. An example of fruiting body is mushroom.
Thus, the correct answer is option). produce spores.
The fruiting bodies of fungi are generally known to serve the production of spores.
What are fungal fruiting bodies?The fruiting bodies of fungi are a structure in the life cycle of some fungi.
Fruiting bodies are known for the storage of spores. Spores are reproductive gametes capable of giving rise to new fungi.
They vary in structures, sizes, shapes, and colors and these attributes can be utilized in identifying specific species of fungi.
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Katie designed an experiment to show a water cycle process. The steps of the experiment are shown below. Pour some water into a small plastic cup. Place the cup carefully into a dry zip lock bag. Zip the bag and keep it in the sun. Observe that the level of water in the cup decreases after one day. Which of these processes in the water cycle is demonstrated by Katie in the experiment?
Answer: Evaporation process
Explanation: The water cycle refers to the cyclic process, how water is transferred from one form to the other. Water from the oceans, seas and rivers gets evaporated due to heating, and rises up into the atmosphere forming water vapor, and in association with that, some of the water is also released into the atmosphere from the plants by the process of evapo-transpiration. This later then gets accumulated in the atmosphere and condenses and falls back as rain.
The water that falls on the surface of the earth again undergoes various processes. Some part of the water gets percolated through the ground and mixes up with the ground water. Some water flows as surface run of and mixes with the rivers and lakes that ultimately mixes up with the ocean water and some of the water is absorbed by the plant roots.
This maintains a cyclic process and this circulating pattern of water plays a significant role in the various weather patterns.
Thus, in the given condition, katie's experiment showed the process of evaporation, where she collected the water in a zip lock bag. The water decreases due to the evaporation process.
If the inner lining of the air sacs is neither thin nor highly vascularized, then what can be inferred about the ai
Final answer:
If air sacs are not thin or highly vascularized, the efficiency of the animal's respiratory system would be lowered, hindering gas exchange and oxygen uptake, thus affecting the overall metabolic efficiency.
Explanation:
If the inner lining of the air sacs is neither thin nor highly vascularized, we can infer that the efficiency of gas exchange in the animal’s respiratory system would be compromised. The thinness and vascularization of the air sacs are crucial for quickly diffusing oxygen into the blood and removing carbon dioxide from it. Therefore, the air sacs must be thin and highly vascularized to ensure efficient gas exchange.
In animals with a flow-through respiratory system, such as birds, air sacs play a vital role in keeping the animal light and facilitating a continuous flow of air through the lungs, which is different from the tidal flow found in mammals. This continuous flow allows for more efficient oxygen uptake. Without thin and well-vascularized air sacs, this system would not function properly, likely leading to reduced oxygenation of the tissues and therefore lower overall metabolic efficiency.
Which two structures would provide a positive identification of an animal cell under a microscope?
A. lysosome, flagellum
B. Golgi apparatus, mitochondrion
C. plasma membrane, endoplasmic reticulum
D. cell wall, chromatin
What is a cost of using technology to transport water?
A. Crops can be irrigated and grown in new areas.
B. Cities can be built in otherwise uninhabitable areas.
C. Freshwater supplies can be depleted in an area.
D. Floods can be averted in flood-prone areas.
Answer: C. Freshwater supplies can be depleted in an area.
Water transportation refers to the intentional transfer of water from one geographic location to the other. The methods used to transfer water to long distances includes three categories:
1. Aqua ducts: This includes the transfer of water through pipes, canals and tunnels.
2. Container shipment: This includes transfer of water by using a vehicle or mode of transportation such as tank truck, tank ship and tank car.
3. Towing: This also includes a vehicle to pull water in it's solid form that is ice or in liquid state. Example a tugboat is used to pull an iceberg or pulling a large water bag along with it.
The water being transported by this method is usually from the natural water reservoir native of a land such as lakes, ponds, and rivers. With the increase in the supply and transportation of fresh water will result in depletion of water in the water source of the native land. The native population will not receive adequate water necessary for sustaining life in future.
Therefore, freshwater supplies can be depleted in an area is a cost of using technology to transport water.
The opening of stomata is thought to involve _____.
The opening of the stomata is thought to have or involve with an increase in regards with the osmotic concentration in terms of the guard cells. The guard cells are the ones surrounding the stomata in which when they are pressured, they are likely to grow small or big.
How does nuclear fission produce energy?
A controlled nuclear chain reaction produces heat, driving steam turbines to produce energy.
Moving water turns turbines to produce electricity.
Carbon atoms are bombarded by small neutrons.
An uncontrolled nuclear reaction produces heat, driving steam turbines to produce energy.
A nuclear reactor produces and controls the release of energy from splitting the atoms of uranium.
Uranium-fuelled nuclear power is a clean and efficient way of boiling water to make steam which drives turbine generators. Except for the reactor itself, a nuclear power station works like most coal or gas-fired power stations.
The first option.
Answer:
Option A
Explanation:
A controlled nuclear chain reaction produces heat, driving steam turbines to produce energy.
Match each vocabulary term to its definition.
1. electrons positively charged, subatomic particles
2. element a heterogeneous mixture
3. solution a homogeneous mixture
4. compound a substance with only one type of atom
5. protons two or more elements that have been chemically combined
6. colloid negatively charged, subatomic particles
Explanation:
An atom contains three sub-atomic particles as protons, neutrons and electrons.
Protons are positively charged, neutrons have no charge and electrons are negatively charged.
An element is a substance that contains same type of atoms. For example, Na is an element.
A solution is a mixture of two or more substances mixed together in uniform composition. Hence, it is also known as a homogeneous solution.
A compound is a substance that contains two or more different atoms chemically combined together in similar composition.
A colloid is a substance in which particles are present in a microscopically dispersed phase throughout a dispersion medium. Physical distinction can be done between the dispersed phase and dispersion medium. Therefore, a colloid is a heterogeneous mixture.
Hence, we match each vocabulary term to its definition as follows.
1. electrons - negatively charged, subatomic particles.
2. element - a substance with only one type of atom.
3. solution - a homogeneous mixture.
4. compound - two or more elements that have been chemically combined.
5. protons - positively charged, subatomic particles.
6. colloid - a heterogeneous mixture.
Conditions, such as phenylketonuria or sickle cell anemia, are produced by _____ abnormalities.
one positive inorganic ion important in human metabolism.
When water diffuses into or out of a cell, it is called?
Which question about dinosaurs is a scientific question?
Should scientists try to clone dinosaurs from DNA remains?
Is the skeletal structure of a tyrannosaurus or brontosaurus more interesting?
How big was the average velociraptor?
Why do people believe that dinosaurs existed?
A scientific question about dinosaurs would involve an inquiry that can be answered through scientific evidence and logical arguments.
Explanation:A scientific question about dinosaurs would involve an inquiry that can be answered through scientific evidence and logical arguments. The question, 'Should scientists try to clone dinosaurs from DNA remains?' is a scientific question because it can be supported or refuted based on scientific evidence and experimentation. The question, 'Should scientists try to clone dinosaurs from DNA remains?' is a scientific question because it can be supported or refuted based on scientific evidence and experimentation.
Final answer:
The question 'How big was the average velociraptor?' is a scientific question that can be answered through paleontological evidence and contributes to our understanding of dinosaur ecology and evolution.
Explanation:
The scientific question related to dinosaurs among the choices provided is: How big was the average velociraptor? This question can be approached through scientific evidence such as measuring fossils and comparing them with data from known specimens. Understanding the size of velociraptors can contribute to a better comprehension of their ecology, behavior, and physiological constraints, which falls under the scope of paleontology. In contrast, questions regarding whether to clone dinosaurs or the level of interest in skeletal structures are less scientific, as they involve ethical considerations and subjective preferences, respectively. Similarly, the question of why people believe dinosaurs existed focuses on sociology and psychology rather than pure science. Studying dinosaurs, including velociraptors, ties into larger scientific inquiries about evolution, animal physiology, and environmental adaptation.
Which hypothyroid diagnosis is supported by low levels of tsh?
a. secondary
b. autoimmune
c. atypical
d. primary?
Where are nonpolar amino acids of a protein more likely to be found? check all that apply?
Does thyroid hormone level affect oxygen consumption in cells?
According to Cpankau's interactive graph and data of "Does Thyroid Hormone Level Affect Oxygen Consumption in Cells?" is a bar chart, showing Col2; with Thyroid Hormone Level in the x-axis and Oxygen Consumption Rate (nmol O2/min x mg cells) in the y-axis.