Temperature is an important physical feature of an ecosystem. which option below shows a correct, direct relationship between temperature and organisms in an environment?
A child who consumes adequate calories but insufficient amounts of protein is most at risk for developing
What are the three domains of life
Answer:
The three domains of life are Bacteria, Archaea and Eukarya.
Explanation:
Three domain system is a classification system of living beings that is based on the comparison of ribosomal RNA.
Bacteria: Which includes all the majority of unicellular microscopic living beings or that form aggregates, without nucleus or cellular organelles, are also characterized by having a peptidoglycan cell wall.
Archaea: Like bacteria, all its members are unicellular and without nucleus although they differ in fundamental things such as the composition of their outer wall or their metabolic pathways, much more complex than those of bacteria, almost close to those of urkaryotes.
Eukarya: Finally, the eukaryotes that were the last to appear evolutionarily speaking, includes all the organisms with nucleus and that present organelles such as mitochondria or chloroplasts, with more complex biochemical routes that allow greater structural complexity, beyond the unicellular ones.
Which of the following describes how bacteria can receive or exchange genetic material?
(A) In transformation, some bacteria pick up pieces of DNA from the environment.
(B) In conjugation, two bacterial cells temporarily join and transfer genetic material between them.
(C) In transduction, viruses infect bacteria, carrying gene from one cell and injecting them into another.
(D) All responses apply
"about how many calories are in one serving (14-17 grams) of alcohol?"
Select all that apply. If you wanted to eliminate carbohydrates from your diet, which of the following foods would you eliminate? butter apples honey fish carrots
Answer: apples honey carrots
Explanation:
A carbohydrate is a type of biomolecule which consist of hydrogen, carbon and oxygen atoms, usually with a hydrogen and oxygen atom are in the ratio of 2:1. These performs various functions in the living organisms. These are the component of cell wall of plants (cellulose) and also serve for the storage of energy (for example starch and glycogen) and they are the source of sugars like glucose and fructose.
Apples, honey and carrots are the source of carbohydrates they consists of sugars which are the forms of carbohydrates.
Typically, roofs on houses in the tropics are white. What advantage does this provide to the inhabitants?
A) It would absorb most of the incoming visible light, thus keeping the inside of the house cooler.
B) The white or light-colored roof would have a low albedo, causing a lower inside temperature.
C) The white or light-colored roof would have a high albedo, causing a lower temperature inside.
D) The white or light-colored roof would be easier to keep clean, as the dirt would show up better.
E) The white or light-colored roof would allow any accumulated snow to slide off.
White roofs have a high albedo, reflecting sunlight and keeping houses cooler, which can save energy and could contribute to reducing global warming. Thus, the correct answer to the student's question is option (C).
The color of house roofs, particularly in the tropics, provides a functional benefit related to the concept of albedo. Albedo is the measure of how much light that hits a surface is reflected back without being absorbed. The correct answer to the question is C) The white or light-colored roof would have a high albedo, causing a lower temperature inside. This is because white or light-colored roofs reflect more of the sun's radiation, leading to a cooler interior compared to dark-colored surfaces, which absorb more radiation and increase the temperature.
Having roofs with a high albedo not only keeps individual houses cooler, reducing the need for air conditioning and thereby saving energy and lowering carbon dioxide emissions, but theoretically, if many roofs were reflecting more sunlight, it could even have a positive impact on combatting global warming. It is similar to wearing a white shirt on a hot day to keep cool. This principle is crucial for both energy efficiency in housing and climate mitigation strategies.
After a long and frustrating course of constant vaginal pain, a 38-year-old woman has been diagnosed with generalized vulvodynia by her nurse practitioner. what treatment plan is her nurse practitioner most likely to propose
Which of the following best describes the cell cycle
Answer:
Cells spend more time in prophase than any other phase, where DNA condenses to prepare for division.
Cells spend the most time in interphase, where they grow and their DNA replicates.
Cells spend approximately equal amounts of time in each stage of mitosis and die after cytokinesis.
Cells spend about half of their life in anaphase since separating chromosomes requires a lot of energy.
Explanation:
I answered B
Which cause of a sexually transmitted disease is hardest to treat?
gonorrhea is caused by bacteria
A 73-year-old patient is admitted from a long-term care facility with fever and chills. blood cultures identify the presence of escherichia
The presence of Escherichia coli is identified in the blood cultures. In this case, the physician was able to diagnose Septicemia, blood infection, bacteremia, or blood poisoning. This happens when a bacterial infection from the other parts of the body, such as in the skin or lungs, enters our bloodstream.
Septicemia is normally quite severe. A lot of types of bacteria can cause septicemia, although, the exact source of this infection cannot be determined.
To add, this type of infection must be treated immediately in the hospital because it can quickly become life-threatening and if not treaded instantly, it can progress to sepsis.
Sheena wants to measure the volume of a ball that is 24 cm across. How should she set up her equation?
The way that Sheena has to set up her equation should be [tex]\frac{4}{3} \pi 12^{3}[/tex]
How to set up the equation.The ball is said to be 24 cm across the room.
Distance = 24cm
Radius is given as
r = d/2
= 24/2
= 12
Hence the formula for volume is
4/3πr³
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What do these results suggest about the role of calcium in bones? is it important? why or why not?
Answer:
Role of calcium
1. It act as messenger in extracellular communication
2. it help in muscle contraction during locomotion and exercise.
3. it is a primary ion released in synapses of neuron to conduct nerve impulses.
4. It mineralizes the bones so that bones become stronger.
Absence of calcium in bones lead to diseases
For calcium deficiency word Hypocalcemia is used. It happened when calcium level drops in body results in low blood calcium level. This deficiency cause osteoporosis, teeth deformation and brain damage.
Describe and give an example of unicellular colonial and multicellular organisms
The unicellular organisms are made of one cell and carry out the processes of life as a single cell and the multicellular organisms are made up of two or more cells that have specific functions to contribute to the life processes.
What are unicellular organisms?The organisms which are made up of single cell is known as unicellular organisms and in the unicellular organism all the life processes takes place in a single cell. Amoeba is known as an unicellular organism in which all the activities related to life carried out in a single cell.
Multicellular organisms are made up of eukaryotic cell and the eukaryotic cell is consist of different cell organelles to carry out different functions in the cell. The multicellular organisms perform different life process in different cells because they have specific cell for specific function.
Amoeba is known as an unicellular organism in which all the activities related to life carried out in a single cell. The example of multicellular organism is human beings and other animals as well plants are also came in the category of multicellular.
Therefore, The unicellular organisms are made of one cell and carry out the processes of life as a single cell and the multicellular organisms are made up of two or more cells that have specific functions to contribute to the life processes.
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What is the most common result when heat radiation is released from Earth?
A) The amount of carbon dioxide in the atmosphere increases.
B) The temperature of the atmosphere decreases.
C) Water vapor is produced in the atmosphere.
D) The heat causes an increase in precipitation.
E) Certain gases in the atmosphere absorb the heat.
The salivation of dogs in pavlov’s experiments was significant because it ____.
Answer:
The salivation was significant because it demonstrated the ability to learn to anticipate future events as a survival advantage.
Explanation:
Pavlov wanted to clarify how conditioned reflexes were acquired. Dogs naturally salivate for food; Pavlov thus called the correlation between the unconditioned stimulus (food) and the unconditioned response (salivation) an unconditioned reflex. On the other hand, when a stimulus does not elicit any response, it is called a neutral stimulus (bell sound).
Pavlov's experiment was to associate an unconditioned stimulus (food) with the presentation of a neutral stimulus (bell sound).
After repeating this association of stimuli, he found that the dog learned to salivate before the stimulus that previously did not elicit any (neutral) response even in the absence of the unconditioned stimulus (food). This salivation was significant because it demonstrated the ability to learn to anticipate future events as a survival advantage.
Compare and contrast conduct disorders with personality disorders.
Conduct disorders are most often specific to kids and teens. This type of disorder leads to aggressive, violent, and destructive behaviors. Those diagnosed with a conduct disorder often have low self-esteem and little guilt or remorse for their behavior. On the other hand, personality disorders can occur in all ages. People with this disorder chronically have a difficult time in their relationships, are usually inflexible, and have difficulty adapting to change.
Which animal has the most expensive mode of locomotion?
________ cells and red blood cells rely on glucose for energy.
Which of these would be the end of meiosis I and the beginning of meiosis II?
A) Mature ovum
B) Polar bodies
C) Primary oocyte
D) Secondary spermatocytes
The end of meiosis I and the beginning of meiosis II is marked by the formation of secondary spermatocytes in males and secondary oocytes in females.
Explanation:The correct answer is D) Secondary spermatocytes.
Meiosis is the process of cell division that produces gametes (sperm and eggs). It consists of two stages: meiosis I and meiosis II. Meiosis I is the reduction division, where the number of chromosomes is halved, and it begins with the separation of homologous chromosomes. The end of meiosis I and the beginning of meiosis II is marked by the formation of secondary spermatocytes in males and secondary oocytes in females.
In meiosis II, the goal is to separate the sister chromatids. The end result of meiosis II is the production of four haploid cells (gametes) that each have half the number of chromosomes as the parent cell.
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There is a correlation between algae height and the snout-to-vent length of a group of marine iguanas in the galapagos. what may be causing the change in size of marine iguanas on different islands?
If herbivores eat 320 kg of plants, and the total plant biomass is 1,600 kg, the _______ efficiency is ________ %.
How would you distinguish a scientific theory from a scientific law
Why is e = hv important in pv cell considerations?
The equation E = hv is important in PV cell considerations because it explains how the energy of a photon is directly proportional to its frequency, which determines whether an electron can be knocked loose to contribute to the electrical current in a PV cell.
Explanation:The equation E = hv, where E represents the energy of a photon, h is Planck's constant, and v is the frequency of the photon, is crucial in understanding the functioning of photovoltaic (PV) cells. This relationship is important because it shows that the energy of the photons striking the PV cell is quantized and directly proportional to the frequency of the light. PV cells convert light energy into electrical energy, and the threshold energy level, known as the band gap, is pivotal. Silicon, commonly used in PV cells, has a band gap of 1.1 eV; a photon must have at least this much energy to knock an electron from the valence band to the conduction band. If these electrons reach the PV cell's junction, they are swept across and contribute to the electrical current, thereby generating power.
Efficiency in PV cells corresponds to the usual chance that an incoming photon will have sufficient energy to liberate an electron and ultimately lead to a current. Overvoltages are necessary in electrolytic processes because of the required additional driving force to overcome barriers, similar to those faced by electrons in a PV cell. Design considerations for PV cells focus on maximizing the conversion of photon energy to useful current by leveraging the E = hv relationship.
Why is the presence of only 2 adult female wolves of such concern to isle royale scientists?
Which of the following can be accurately said about climax communities?
The original climax community restoration may not always happen
Develop a hypothesis regarding how using contaminated or purified water might affect plant biodiversity. which pot do you believe will contain the greatest biodiversity (greatest number of species)? why?
Stress-induced eating is risky, as it increases fat in the __________, which is a predictor of heart disease in men and women.
Stress-induced eating increases fat in the abdomen, which is a predictor of heart disease in both men and women.
Explanation:Stress-induced eating can increase fat in the abdomen, which is a predictor of heart disease in both men and women. Excess fat accumulation, especially in the central abdomen region, puts individuals at greater risk of adverse health consequences, including heart disease. Visceral fat, which is located around the abdominal organs, contributes more to disease risk compared to fat in other areas of the body.
According to the phylogenetic tree diagram, modern birds are most closely related to ___________.
Modern birds are most closely related to theropod dinosaurs, specifically maniraptoran theropods. Evidence for this can be seen in the skeletal similarities and the example of Archaeopteryx, a fossil with characteristics of both groups. Modern birds are classified into three groups and are descendants of a common maniraptoran ancestor.
Explanation:According to the phylogenetic tree diagram, modern birds are most closely related to theropod (maniraptoran) dinosaurs. Evidence of this relationship can be seen in similarities between late (maniraptoran) theropod fossils and birds' hip and wrist bones, as well as the presence of the wishbone, which is formed by the fusion of the clavicles. The birds evolved within the clade Dinosauria, specifically within the bipedal predators group known as theropods.
A well-known fossil that appears to be an intermediate between dinosaurs and birds is that of Archaeopteryx, from the Jurassic period. It shares characteristics with both maniraptoran dinosaurs and modern birds. Despite its dinosaur-like features, Archaeopteryx had feathers modified for flight, a trait unique to birds among modern animals.
The modern birds, or Neornithes, are descendants from their most recent common maniraptoran ancestor and are classified into three major groups: Paleognathae, Galloanserae, and Neoaves. It's crucial to recognize that these classifications are still subject to change due to ongoing phylogenetic revisions.
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Give four examples of species (animal or plants) that are over utilized