The sun is the primary source of energy for life on earth. It provides the energy for photosynthesis, which supports plant life and indirectly, all other life.
Explanation:Almost all the energy that drives life on earth originates from the sun. This energy is captured by plants through the process of photosynthesis. During photosynthesis, plants convert sunlight, carbon dioxide, and water into glucose and oxygen. The glucose provides energy for the plants to grow, and is also consumed by animals when they eat plants. Thus, the sun's energy is transferred through the ecosystem. Without the sun, most forms of life on earth would not exist.
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What is the connection between the liver (organ), UV radiation (sunlight), and bone tissue? I need something with more information for an essay
What are the two recognized means of preventing injury during electrical equipment operation?
True-breeding red petunias are crossed to pure-breeding blue petunias, and all the f1 progeny have purple flowers. if the f1 are allowed to self-fertilize and produce the f2, what is the expected phenotypic distribution of the f2 progeny?
Final answer:
The expected phenotypic distribution of the F2 progeny when true-breeding red petunias are crossed with pure-breeding blue petunias, with all F1 having purple flowers, would be 75% purple flowers and 25% a mix of red and blue, under the assumption of incomplete dominance.
Explanation:
When true-breeding red petunias are crossed with pure-breeding blue petunias, and the resulting F1 progeny have purple flowers, this suggests that red and blue flower colors are co-dominant. Upon self-fertilization of the F1 progeny, we would expect to see a phenotypic distribution in the F2 generation that shows the effects of this co-dominance.
If red (R) and blue (B) are co-dominant alleles, the F1 generation will all be heterozygous (Rb), resulting in purple flowers. When these F1 plants self-fertilize, the F2 generation will have the following genotypes according to a Punnett square: RR (red), Rb (purple), bR (purple), and bb (blue). The phenotypic ratio would therefore be 1 red: 2 purple: 1 blue, or 25% red, 50% purple, and 25% blue.
However, it must be noted that if instead, one color is dominant over the other, and purple is the result of incomplete dominance, the phenotypic ratio of the F2 generation would show a different pattern. In that case, the ratio at the F2 generation would be commonly expected to be 1:2:1 according to Mendelian genetics, corresponding to 25% one parent color, 50% the blended color (purple), and 25% the other parent color.
Based on the historical context from Mendel's experiments with peas, where a similar pattern of inheritance was observed with purple and white flowers, the question suggests that the expected phenotypic distribution for the F2 generation would be 75% purple flowers and 25% a mix of red and blue flowers, assuming that the purple color is a result of incomplete dominance.
Jessica is extremely thin but complains she is fat, so she exercises obsessively to avoid weight gain. jessica may be suffering from
Jessica may be suffering from anorexia nervosa. This is a type of eating disorder in which the person or individual who has this disorder likely wants to lose weight because of his or her outlook of being fat—she or he would do whatever it takes to lose weight even if the person starves.
Answer:
anorexia
Explanation:
Which equation represents "Eight less than five times a number equals twenty-two"? A) 5x - 8 = 22 B) 5x + 8 = 22 C) 8 - 5x = 22 D) 8 + 5x = 22
Answer: Its A
Explanation:
I don't know why but i had the assessment and guessed and it was right
According to friedrich, when food and fluid intake is poor, starvation occurs before dehydration
The statement of Liz Friedrich is verified by evidence from research of a physiologic adaptation, during the vanishing development, the famine that averts any uneasiness as a outcome of the absence of food. Dehydration may result to hemoconcentration and hyperosmolality, with consequent azotemia, hypernatremia, and hypercalcemia. These metabolic fluctuations may create a soothing effect on the brain before passing away.
The mutagens that result in cancer damage DNA by (a) destroying the cells p53 gene directly thereby increasing cell production (b) weakening the DNA strand or interfering with base pairing (c) altering the cells pH and allowing increased cell productions (d) becoming a virus that attacks DNA directly l, impairing duplication
Answer:
It is b weakening the dna strand or interfering with base pairing
Explanation:
A box of books has lessequalmore inertia than a box of cotton balls.
Answer:
True.
Explanation:
For Newton, the Law of Inertia establishes the acceleration resistance offered by matter. Being inertia the property that a body has to remain at rest or in uniform rectilinear motion (MRU). This law also says that the greater the mass of matter, the greater its tendency to inertia. That is, the heavier the more likely it is to remain motionless or in the same motion.
Since a book box is heavier than a cotton box, we can say that a book box has more inertia than a box of cotton balls.
A method of genetic fingerprinting that relies on the location of small subunit rrna genes on dna fragments is called
While performing photosynthesis during the day, the chloroplasts of a green leaf produce:?
Identify the features indicated in the sagittal section of the right half of the human brain
Final answer:
A sagittal section of the human brain reveals key structures like the cerebrum, cerebral cortex, corpus callosum, and the longitudinal fissure. It also shows the division into the frontal, parietal, temporal, and occipital lobes, each with specific functions.
Explanation:
The sagittal section of the human brain is a vertical cut that divides the brain into left and right halves. It can feature various brain structures such as the cerebrum, which includes the cerebral cortex, the white matter of the corpus callosum, and the longitudinal fissure that separates the cerebral hemispheres. The cerebral cortex itself exhibits folds called gyri and grooves called sulci, which help to increase the area available for neurons.
The cerebrum is further divided into four lobes: the frontal lobe, parietal lobe, temporal lobe, and occipital lobe, which are separated by different sulci such as the central sulcus and lateral sulcus. These lobes and their folds are responsible for various functions of the brain, ranging from sensory processing to decision making.
What role do rocks have within the carbon cycle?
Rocks are the storage of carbon when recombines into minerals releasing carbon into the carbon cycle.
What is the carbon cycle?Carbon in the atmosphere is absorbed by plants to do photosynthesis, plants are consumed by animals, and this carbon accumulated in their bodies.
When an animal or plant dies this carbon is released again into the atmosphere. If not released back they become fossil fuels, and these fossil fuels are used by human activities, which pump back into the atmosphere.
It is a cyclic form where carbon interchanges between the biosphere, hydrosphere, pedosphere, and geosphere and into the earth's atmosphere.
Therefore rock weathering in the carbon cycle is important
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The strategy for bioremediation of large sites contaminated by inorganic pollutants like toxic metals and radionuclides is usually to __________.
The answer in the space provided is contains the pollutants in a process of having to convert it with less mobile form as this is the strategy used that is helpful for bioremediation in terms of large sites in which is contaminated with the inorganic pollutants.
Explain why atmospheric concentrations of carbon dioxide are expected to increase in the future.
The atmospheric concentrations of carbon dioxide are expected to increase in the future because of increasing numbers of vehicles as well as industrial area.
How automobiles and industries affect the atmospheric concentrations of carbon dioxide ?All the industries, automobiles and other sources of carbon , releases large amount of carbon dioxide which further accumulate to increases the concentration of CO2 in the atmosphere.
Enhanced carbon concentration in the atmosphere restricts the escape of heat from the earth (Green house effect) thereby increasing the temperature of earth. Thus, first the carbon dioxides is released, then its concentration increases and lastly the global temperature rises.
Thus, increasing numbers of vehicles as well as of industrial area is the main concern.
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which often is a result from great variations in a habitats abiotic conditions
Answer:
with competitive exclusion
Explanation:
Competitive extrusion is a concept created by Georgyi Frantsevich Gause, who states that each species has a specific ecological niche for that species. In this case, if one species has to divide this ecological niche into two or more species so that they coexist without interfering with each other's survival, large variations in abiotic habitat conditions will be necessary making it possible for the ecological niche to have different and sufficient characteristics. for each species.
A 10-month-old infant has begun to take his first steps and his mother has brought him for assessment because of swelling in his ankles and knees. the mother also states that he was eager to walk but has now regressed and cries when she tries to encourage it. the clinician should:
What is a gametophyte?
A. A plant that produces gametes.
B. An animal that produces gametes.
C. A plant that produces spores.
D. An animal that produces spores.
For daily water consumption, many experts recommend drinking ____________ of your body weight in ounces.
Describe the two methods suggested for projecting a nonstatistical sample result. how does an auditor determine which method should be used
Non-Statistical Sampling is the method of evaluation the competence of the evidence gathered from the auditor. Selected-sample size is referred to as non-statistical sampling. There are two acceptable methods used for projecting the amount of misstatements. They are ratio projection and difference projection.
Ratio projection is used in the non-statistical sampling and classical variable statistical sampling. It projects the misstatement amount by dividing the amount of misstatement and percentage of the dollars of the sample population.
Difference projection is defined as the average misstatements of each and every item in the sample to the overall population. This projection is executed when the misstatement is stable for the entire item, though its dollar size varies.
Results arrived from these two projections are identical, when the same proportion of items in the populations are incorporated in the sample. But, when different proportions are arrived at, then the choice between the two is based on the auditor’s judgment.
A management science technique usually applies to a specific model type.
a. True
b. False
What is the main component of the thin filaments in muscle fibers and is responsible for muscle contraction?
Answer:
Actin Protein
Explanation:
Protein named “Actin” is the main component of thin filament in muscles. There are some other proteins such as troponin and tropomyosin that forms the thin filament. However, actin plays an important role in the contraction of muscles as each actin molecule consists of single myosin binding site. All actin molecules join together to form a chain twisted into helix configuration which is very essential for the contraction mechanism in muscles.
Plant cells have two energy-related organelles. ________________ harness light energy to create sugars and ________________ break down these sugars to create atp.
What is the water cycle and how does the Conservation of Matter apply to the water cycle?
The water cycle is the continuous movement and recycling of water through different states and locations on Earth, without any loss or gain of water molecules, in accordance with the law of conservation of matter. The law states that matter cannot be created or destroyed, which is essential in chemistry and is exemplified by the constancy of matter within the water cycle.
What is the Water Cycle?
The water cycle, also known as the hydrologic cycle, is the continuous movement of water on, above, and below the surface of the Earth. Water molecules travel through different states: gas (water vapor), liquid (water), and solid (ice). The main processes in the water cycle include evaporation, transpiration (from plants), condensation (forming clouds), precipitation (rain or snow), infiltration, and runoff.
Law of Conservation of Matter
The law of conservation of matter states that matter is not created or destroyed in a chemical reaction. This universal law also applies to the water cycle. As water transforms through various states and moves throughout the ecosystem, the amount of matter (water molecules) remains constant. This demonstrates that the water you drink has been a part of the Earth's water cycle for potentially millions of years, undiminished in quantity.
How Conservation of Matter Applies to Chemistry and the Water Cycle?
In chemistry, the law of conservation of matter is fundamental, indicating that the total number of atoms, and thus the mass of all reactants, is equal to that of the products in a chemical reaction. Relating to the water cycle, this law ensures that water molecules, despite changing states or location, are neither lost nor gained overall during the process. All matter, or water in this context, is perpetually recycled within the Earth's system.
Children are likely to be most influenced by tv when:
You place a drop of a solution on red litmus paper. No color change occurs. What do you conclude?
________ is the five-carbon sugar found in DNA.
Answer:
Deoxyribose is the five -carbon sugar found in DNA.
Explanation:
The molecule of DNA is composed of nucleotides. The nucleotides are units composed by a phosphate group, a nitrogenous base and a molecule of the carbohydrate deoxyribose.
The deoxyribose is a pentose sugar. Four carbon atoms and a single atom of oxygen form a five membered ring. The other carbon atom is outside the ring and forms a part of a CH2 group.
It contains a five carbon carbohydrate ring bound to the phosphate group, on its other side, the deoxyribose is bonded to a nitrogenous based: Adenine, Thymine, Cytosine or Guanine.
Which three statements about dialysis are true?
A-It’s a time-consuming procedure.
B-It requires the patient to be on antirejection medication.
C-It uses a machine to purify blood.
D-It’s a temporary remedy for renal failure.
E-It requires matching the patient’s blood with that of the donor.
Dialysis can be defined as the treatment to maintain the chemical levels in the body salt. Dialysis removes the extra water, salt and waste from the bodies of the patients whose kidneys are unable to perform their function properly. The dialysis is a temporary solution for the renal failure before a transplantation is done. The process of dialysis is time-consuming as it takes several hours to completely purify the blood.
Hence, the correct statements about dialysis are 'A, C, D'.
Name an organelle that stores large amounts of calcium.
The plastid is a double-membrane organelle found in cells of different plants and algae. Plastids store and manufacture chemical compounds in the cell. This includes Calcium, which is stored as Ca-oxalate crystals. They can also store starch, which is used to produce energy.
In a small, isolated population of piranhas, one individual is born with a synonymous mutation in a gene that codes for hemoglobin. after five generations, 5% of the piranhas carry this mutation. what is a plausible explanation for this evolution?
"_____ is an unpleasant side effect that alcohol withdrawal creates for an alcoholic."