The right option is; A. Veins
Veins are the blood vessels that have thin walls and contain valves.
Veins are blood vessels, and an essential part of the circulatory system that mainly functions by transporting deoxygenated blood back to the heart after arteries transports blood out. Most veins have valves in them to avoid backflow, and their walls are very thinner than that of arteries. The biggest vein in the body is the vena cava. Veins are grouped into; systemic veins, superficial veins, deep veins, pulmonary veins, and communicating veins.
Plants derived via asexual reproduction from a single parent are
An 11-year-old child is sent to the school nurse reporting difficulty reading the blackboard in the classroom. the nurse assesses that the child does not have difficulty reading a laptop screen or reading books. what is the best action by the nurse
Laocoön and his sons revealed ____ greek attitudes about the body during the hellenistic period.
A patient presents at the clinic after one week of taking pravastatin (pravacol) with reports of "just not feeling well." the nurse asks what liquid the patient has been taking their medication with, and the patient reports drinking a lot of grapefruit juice. the nurse should know that grapefruit juice increases the risk of which adverse effect?
Mike has suffered brain damage after only a light blow to the head. Mike could have ___________ cerebrospinal fluid in the ____________ nervous system.
too little; peripheral
too little; central
too much; peripheral
too much; central
The scientist who suggested that energy can be created under certain conditions was a. Newton. b. Einstein. c. Wright. d. Pascal.
Compare and contrast diffusion and osmosis and predict the direction of water a solute movement across a selectively permeable membrane.
Similarities
Diffusion and osmosis are both examples of passive transport.
They transport substances down a concentration gradient.
Difference
Diffusion is the movement of solute particles down a concentration gradient. Osmosis is the movement of water molecules down a concentration gradient.
FURTHER EXPLANATIONActive and Passive TransportPassive transport is the movement of particles through a membrane which requires no extra energy. It happens spontaneously because there is an imbalance in the amount of solutes or difference in concentration inside and outside the membrane. In order to reach equilibrium or a state where the amount of solute or concentration on both sides is the same, some substances have to cross the membrane.
When substances move from a region of high concentration to low concentration, it is said that the substances are moving down a concentration gradient. This process is spontaneous meaning it does not require energy to occur. The opposite is true for active transport which requires additional energy for it to happen.
Movement of SubstancesIn diffusion, solutes move from a concentrated area to a less concentrated area.
In osmosis, the water molecules move from an area with more water molecules (lower concentration of solutes) to the area with less water molecules (higher concentration of solutes).
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Which is a better solvent of salt, based on the results? Why?
What is one characteristic of a stable ecosystem?
A) a high number of predators
B) an interdependence of organisms
C) a lack of biodiversity
D) an increase in human interference
One of the characteristics of a stable ecosystem is the interdependence of organisms.
• An ecosystem is said to be in stability or equilibrium if it possesses the tendency of coming back to the state of equilibrium after a disturbance or perturbation.
• The stability of an ecosystem is possible when the organisms within the ecosystem are interdependent.
• All the organisms living within an ecosystem are interdependent, that is, they depend on each other for survival and existence.
• Either indirectly or directly, both the animals and plants depend on each other.
• Like rats eat plants and grains, and snakes eat rats, this snake eventually is eaten by an eagle. All this takes place due to the interdependence of animals and plants food chains.
Thus, the correct answer is option B, that is, one of the characteristics of a stable ecosystem is an interdependence of organisms.
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De roode notes that animals besides humans self-medicate. from your own knowledge of animals, what are some ways that domestic pets like cats and dogs self-medicate?
How can people help keep freshwater resources renewable? A. Avoid drip irrigation systems on farms.
B. Conserve residential water use.
C. Build thermal power plants.
D. Add water features to private gardens.
The correct answer is option B
The best way by which people can help to keep the fresh water as a renewable resource is by conserving the residential water.
The amount of water wasted by the domestic uses is at highest in the priority list.
So, the domestic water must be conserved to keep it as renewable resources of freshwater.
answer : conserve residential water use.
Explanation:
Fiona wants to use the scientific method to answer the question “Do oxygen levels in the air affect rates of photosynthesis?” She reads about photosynthesis in her biology book and is ready to carry out the next step. What should she do next? perform an experiment design a procedure make observations form a hypothesis
Answer:
Form hypothesis or D
Explanation:
Hope this helps
Answer:
D
Explanation:
WILL GIVE A BRAINLEST
The effect of human disturbance on animal populations is _____.
unobservable
density-dependent
density-independent
stabilizing
Answer: density-independent
Explanation:
A limiting factor is the one which is responsible for the decrease in the growth , abundance and distribution of the population of a species in an ecosystem. It can be a living agent or a non-living agent. A density independent factor is the one which limits the growth of the population and it does not depend upon the density of the species population. A density dependent factor is the one which limits the growth and abundance of the population of the species on the basis of the density. More the density more profound will be the impact for example a disease is likely to be spread among the members of the population of a species.
The effect of human disturbance on animal is an example of density independent limiting factor as the human beings while using animal products or disturbing their habitats does not consider about the consequence of the affect. But some animals recover this loss by reproducing more progenies but others which cannot may extinct.
Which organism is probably responsible for keeping the food web and the pyramids in their respective shapes?
Producers are organisms that have the ability to use photosynthesis (plants) or other mechanisms (such as chemosynthesis in some extremophiles) to transform light, water, and carbon dioxide into organic matter and chemicals that are high in energy.
A food web is a chain of consumption in which producers are eaten by primary consumers (herbivores), who are then eaten by secondary consumers (carnivores), and so on.
The base level represents the producers in ecological pyramids (such as energy pyramids or biomass pyramids).
Therefore, Trophic levels, the energy or biomass declines, indicating both the transmission of energy and the fact that energy is lost at each level of the trophic pyramid.
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Select the type(s) of prokaryotic regulation that fit(s) the description below: regulator gene product binds dna in a complex with effector molecules.
How does the presence of a cavity containing fluid influence the amount of friction generated?
Answer:
The more fluid there is in the cavity, the less fluid there is generated. This is because the water cushions the force and lessens the friction. For instance, you will notice that if you rub your hands over a balloon filled with water, there isn't much friction at all.
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In the final stage of the nuclear fuel cycle, the spent fuel must be transported, processed, and disposed of properly.
True
False
Answer: True
The nuclear fuel cycle involves the generation of nuclear energy in a nuclear reactor by utilizing various sources of radiations in a thermal power station. The nuclear fuel is sensitive to impact or friction. If it receives impact or friction, an explosion can occur. Therefore, these fuels should be transported in an appropriate container and should be dump either on shallow land or in water so that dumping does not result in air blast effects or explosion. Hence, final stage of the nuclear fuel cycle involves the spent fuel must be transported, processed, and disposed of properly.
How do doctors detect abnormalities in patients with the help of an EKG?
The right answer is by determining changes in the heartbeat
Three questions are unavoidable when interpreting an ECG:
• What is the heart rate?
A normal frequency is between 50 to 100 / minute. Below 50 / min, we are talking about bradycardia, above 100 / min, we are talking about tachycardia.
• Is the heart rhythm regular or irregular (arrhythmia)?
On a normal ECG, the space between 2 Q-R-S is always the same regardless of the time of recording (in green in the following diagram). This question is fundamental to detect arrhythmias.
• Is the rhythm sinus (or normal)?
Each P-wave must be followed by a Q-R-S segment. This question will help identify conduction disorders between the atria and the ventricles.
On most bicycles, the tires include a separate inner tube inside the tire itself. when the inner tube is inflated, often to pressure greater than 100 pounds per square inch, it does not burst because the walls of the tire support it. without the tire, the inner tube would burst long before such high pressures were reached. similarly, the cytoplasm of plant cells in hypotonic conditions is under relatively high osmotic pressure. however, the cells do not lyse (or burst) due to the presence of the _ that provides structural support for the _.
Determine possible amino acid sequences for the mrna sequence shown below. 5\'–aucggacgaaagcgcu–3\'
In a chemical reaction, which is MOST LIKELY reactant for these products?
? ➡️ CaO + CO2
A. 3O2
B. CO2
C.2KCI
D. CaCO3
Answer:
D.[tex]CaCO_3[/tex]
Explanation:
We are given that a chemical reaction
_ [tex]\implies CaO+CO_2[/tex]
We have to find the value of reactant for given product.
Reactant: The substance on the left side in chemical reaction are called reactants.
Product: The substance on the right side in chemical reaction are called products.
In given product, there are calcium oxide and carbon dioxide.
Therefore, calcium, oxygen and carbon must be present in reactants.
[tex]CaCO_3\implies CaO+CO_2[/tex]
Hence, option D is true.
Answer: D.[tex]CaCO_3[/tex]
Most patients with schizophrenia demonstrate a lower level of frontal lobe activity than healthy control participants. why would this difference be significant?
The frontal lobe has, as some of its functions, the capability to project possible consequences as a result of current actions leading to the choice between worse and better actions, as well as the ability to give importance or suppress socially unacceptable responses. It is also important when it comes to integrating memories associated with emotions, where the frontal lobe use them to fit socially acceptable norms.
These are all functions that are affected in patients with schizophrenia, explaining why there is lower activity at the frontal lobe on them than on those of the healthy control which had normal levels of activity.
A 16-year-old girl has been admitted to the emergency department after ingesting 20 g of acetaminophen (tylenol) in a suicide attempt. the care team would recognize that this patient faces risk for which of these complications?
Amniocentesis is a process in which the amniotic fluid is taken from the uterus for diagnosis. It is used to determine the sex of a fetus. What could be another benefit of this process? A) triggering of an immune response B) determination of genetic disorders C) studying chromosomal changes in mitosis cell division D) identification of diseases associated only with autosome
Answer:
b, I just had it on USA Test Prep
Explanation:
Which of these conservation tactics is the best way to reduce the pollution produced by a coal-burning power plant?
A. Install scrubbers in the power plant.
B. Teach about energy conservation.
C. Build cropland in place of rain forests.
D. Investigate new coal mines.
A. Install scrubbers in the power plant.
Explanation;The conservation tactic that can decrease the amount of pollution entering the air when coal is burn is installing scrubbers in power plants. Coal-burning power plants are the largest source of sulfur dioxide, a pollutant gas that contributes to the production of acid rain and causes remarkable health problems. Scrubbers are apparatus that clean the gases passing through the smokestack of a coal-burning power plant.They are installed to reduce sulfur dioxide (SO2) emissions from the coal-burning process.scrubbers are installed to reduce sulfur dioxide (SO2) emissions from the coal-burning process.Identify the relationships between the zooxanthellae and the hard coral, the remora and the manta ray, the tiger shark and the green sea turtle, and the dolphin and the school of trevallies and state why you chose that relationship. The relationships will be predation, competition, commensalism, or mutualism.
Carpal tunnel syndrome is characterized by __________.
A 77-year-old client is brought to the emergency department by her son. the client has a severe headache and lack of sleep because "i am so worried about everything." her son says that she has heart failure and chronic schizophrenia. "in addition to all of her heart medicines, she is on aripiprazole, which was increased to 30 mg by her health care provider (hcp) 3 days ago." in addition to documenting all of the client's medications and exact dosages, the nurse should particularly investigate which factors? select all that apply.
A class that is used as a basis for inheritance is called a ____ class or a superclass.
A class that is used as a basis for inheritance is called a taxonomic class or a superclass.
What is inheritance?Inheritance is defined as a function or procedure whereby new classes are made from older classes. Evolutionary transformation requires genetic inheritance. It explains how genes are transmitted down across generations. As the primary code does not need to be written again, inheritance can save time and effort. A simple and understandable model structure is provided by inheritance.
Taxonomic is defined as the study of all plants, animals, and microorganisms in the globe. It includes naming, characterizing, and classifying organisms. It helps in the taxonomy of species so that biological information may be conveyed more efficiently.
Thus, a class that is used as a basis for inheritance is called a taxonomic class or a superclass.
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Using no more than 13 propositions, compare and contrast the effects of the autonomic divisions.
Using no more than 13 propositions, create a Concept Map to compare and contrast the motor neurons in the somatic and autonomic nervous systems.
What are the functions of autonomic nervous system?The autonomic nervous system is a component of the peripheral nervous system that regulates involuntary physiologic processes including heart rate, blood pressure, respiration, digestion, and sexual arousal.
There are three branches to the ANS; the sympathetic nervous system, the parasympathetic nervous system, and the enteric nervous system.
With conditions like Type 2 diabetes, the damage can happen in many places throughout your body. The most likely symptoms of autonomic nervous system damage include: Heart rhythm problems.
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