In her laboratory journal, a microbiologist enters the following information: “Some mold growth was seen on the agar plate that was streaked with bacteria three days ago. Bacterial colonies were observed on the plate, but the area surrounding the mold did not show any bacteria.” Which of the following describes the microbiologist’s journal entry?
Why don't we run out of the important gases that we need to stay alive?
The reason why we don't run out of the important gases that we need to stay alive is due to existence of the natural recycling processes such as the carbon cycle and oxygen cycle makes use of gases produced by living organisms, which are carbon dioxide and oxygen to reproduce the gases used
The important gases we need to stay alive are;
Oxygen: Needed for aerobic respiration in the production of energy for life in animals and other living organisms, in the process, carbon dioxide is producedCarbon dioxide: Needed by plant to manufacture plant food which contains energy and oxygen is also produced as a by product, in the process known as photosynthesis. Sunlight energy is used to enable the processThe aerobic respiration and photosynthesis processes along with other natural occurring processes through which oxygen and carbon dioxide are produced creates a cycle that sustains the gases that we need to stay alive so that they do not run out
The cycles are known as the carbon and oxygen cycles
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Explain why cellular respiration adds carbon dioxide to the atmosphere and photosynthesis does not
Compare and contrast the solar cycle to the lunar cycle and explain how this affects tides
The solar and lunar cycles, while different in duration and nature, both significantly affect Earth's tides. Solar and lunar gravitational forces combine to create spring tides during their alignment and neap tides when they form a right angle. These tidal variations are directly related to the Moon's phases and the relative positions of the Earth, Moon, and Sun.
The two most abundant components of whole blood, in order of most abundant and second-most abundant, are _________.
Blood components: plasma and red blood cells.
The two most abundant components of whole blood, in order of most abundant and second-most abundant, are:
Plasma: constituting about 55% of blood volume, it contains water, proteins, electrolytes, lipids, and glucose.Red blood cells (Erythrocytes): making up about 45% of the blood volume.White blood cells (Leukocytes) and platelets are also vital components, though less in quantity compared to plasma and red blood cells.
The scientists at lawrence livermore lab have been able to produce 6 new, synthetic elements. why isn't there yet a practical use for these elements?
Answer:
The elements synthesized in Lawrence Livermore's lab have no practical use because they degraded just after their formation.
Explanation:
As the nucleus of an atom become too heavy it loses its stability. To gain stability the nucleus starts losing the nucleons ( neutron and proton) via different types of radioactive decay.
The elements synthesized in Lawrence Livermore's lab are too heavy to bear their stability went to decay just after its origin.
Therefore, we can say that elements synthesized in Lawrence Livermore's lab have no practical use because they degraded just after their formation.
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Cells from advanced malignant tumors often have very abnormal chromosomes as well as an abnormal number of chromosomes. what might explain the association between malignant tumors and chromosomal abnormalities?
Health insurance involves two perils, accident and ____.
Health insurance covers two main perils: accidents, which are unexpected events that cause physical harm, and illness, a usually long-term condition affecting a person's health.
Explanation:Health insurance typically covers two main perils: accidents and illness. Accidents are unforeseen events that cause physical harm, for which immediate medical attention is generally necessary. On the other hand, illness refers to a condition that affects a person's state of health, usually over a long period.
In insurance terms, these are considered perils as they are potential causes of loss. When you have health insurance, part of your premium pays for coverage in case of accidents or sickness. The insurance company then provides you with compensation for medical costs stemming from these events, aligning with the idea of sharing risk that is central to the concept of insurance.
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What process is happening to the root so that they grow deeper into the ground
The process of cell division (growth) is happening to the root so that they grow deeper into the ground.
CELL DIVISION:
Cell division is the process by which a cell makes double copy of itself. Cell division multiplies or increases the number of cells. This means that when a cell divides, growth visible by elongation occurs. According to this question, a root grows deeper into the ground in search of water for the plant. The process of cell division is making the root of this plant grow, hence, elongating deeper into the ground. Therefore, the process of cell division (growth) is happening to the root so that they grow deeper into the ground.Learn more at: https://brainly.com/question/18957593?referrer=searchResults
Which was not included in the support for Harry Hess’s hypothesis of sea-floor spreading?
earthquake patterns in subduction zones
the age of the ocean floor rock
granitic rock in the ocean floor
magnetic strips in ocean floor rock
In Mendel's experiment with round- and wrinkled-seed plants, the F1 plants, which produced only round seeds, were grown up andmatured and were allowed to self-fertilize. What was the ratio of round to wrinkled seeds in the F2 generation?
The ratio of round to wrinkled seeds in Mendel's experiment was 3:1 in the F2 generation.
Explanation:In Mendel's experiment, when the F1 plants, which produced only round seeds, were allowed to self-fertilize, the ratio of round to wrinkled seeds in the F2 generation was 3:1.
This means that in a large population of F2 offspring chosen at random, approximately 75 percent would be expected to have round seeds, while 25 percent would be expected to have wrinkled seeds.
This ratio demonstrates Mendel's observation of the dominant and recessive traits in his experiment.
A client is admitted for treatment of chronic renal failure (crf). the nurse knows that this disorder increases the client's risk of:a client is admitted for treatment of chronic renal failure (crf). the nurse knows that this disorder increases the client's risk of:
Peanut butter and cottage cheese each provide which two sources?
a)vitamin K b)carbohydrates c)fats
What was shown by both Redi’s and Pasteur’s experiments?
Answer:
Their experiment showed that the flies did not come directly from meat but flies laid their eggs there (disprove the spontaneous generation).
Explanation:
Redi put meat in three different jars one jar with covering and another without covering and the 3rd jar was sealed. He disproved spontaneous generation theory in this experiment. He showed that maggots did not come directly to meat but came from eggs laid by flies The sealed jar had no maggots in the meat.
Pasteur also checks the spontaneous generation theory by putting the boiling broth in different flasks, some open and some sealed. The conclusion he drew from this is that living things did not come from broth directly.
Thus, their experiment showed that the flies did not come directly from meat but flies laid their eggs there (disprove the spontaneous generation).
What is the the simplest, smallest collection of matter that exhibits traits of life is?
compared with a temperate forest, a grassland has
Answer: Grasses
Explanation:
Grasslands are areas covered with grasses. Grasslands lies between forests and deserts.
Grasslands are found in every continent except the antartica. grasslands account for between 20% and 40% of the world's land area.
Temperate forest is a forest found between the tropical and boreal regions, located in the temperate zone. The temperate forest biome is notable for its leaf-shedding (decidious) trees and its seasons. It is the second largest biome on the planet because it covers about 25% of the world's forest area.
How much water flows through your kidney in one day?
Special senses, such as sight and sound, are detected by:
"The correct answer is: Special senses, such as sight and sound, are detected by sensory receptors.
Sensory receptors are specialized cells or structures that respond to specific types of stimuli in the environment. These receptors are the first step in the process of sensory perception. For example, photoreceptor cells in the retina of the eye detect light, while hair cells in the inner ear detect sound vibrations. These sensory receptors convert the stimuli into electrical signals that are then transmitted to the brain via sensory neurons. The brain interprets these signals, allowing us to experience sensations such as sight and sound. The process by which sensory receptors convert stimuli into electrical signals is known as sensory transduction. Each type of sensory receptor is tuned to specific types of physical or chemical stimuli, ensuring that the nervous system can accurately detect and respond to changes in the internal and external environment."
Predict how many double helical molecules of dna will be present in the gametes of the fruit fly, drosophila, a diploid organism that has eight replicated chromosomes in each cell that enters meiosis.
The answer is a four double-helical molecules of DNA, which correspond to four unreplicated chromosomes. There will be four DNA molecules in to each gamete because the 8 replicated chromosomes in a diploid cell are compacted to 4 replicated chromosomes each cell at the closing of meiosis I. In meiosis II, the fellow chromatids of every replicated chromosome are disjointed. Each cell now comprises 4 unreplicated chromosomes, respectively with a single molecule of DNA.
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How does carbon move between the atmosphere, hydrosphere, biosphere, and geosphere?
Answer:
Carbon is an element and is part of the oceans, air, rocks, soils and living things, it does not stay in one place.
In the atmosphere, it combines with oxygen in a gas called carbon dioxide (CO2). With the help of the sun, through photosynthesis, carbon dioxide is extracted from the air and converted into food.
Through food chains, carbon from plants goes to the animals that feed on them. Animals that eat other animals also obtain carbon through their food.
When plants and animals die, their bodies, wood, and leaves decompose in the soil. Part of the decomposed matter is buried and after millions and millions of years, it becomes fossil fuel.
Each time you breathe out, carbon dioxide is released into the atmosphere. Animals and plants get rid of the gas through the process known as respiration.
The carbon from fossil fuels goes into the atmosphere when the fuel is burned. When humans burn fossil fuels to power their factories, power plants, cars, and trucks, most of the carbon quickly enters the atmosphere in the form of carbon dioxide gas. Every year, five and a half billion tons of carbon are released in the form of fossil fuels burned. Of the large amount of carbon released by fuels, only 3.3 billion tons penetrate the atmosphere, and most of the rest is dissolved in the seawater.
The oceans and other bodies of water absorb some of the carbon from the atmosphere. It dissolves in water. Marine animals use carbon to create the material for their skeletons and shells.
Carbon dioxide is a greenhouse gas that traps heat in the atmosphere. When carbon is deposited on the seabed, it is stored outside the carbon cycle for long periods of time. The amount of limestone deposited in the ocean depends in some way on the amount of shallow, tropical and warm oceans on the planet, because that is where limestone-producing organisms, such as corals, proliferate. Carbon can be released back into the atmosphere if the limestone melts or undergoes metamorphosis in a subduction zone.
What is different about the mouth structure of ruminants compared to that of humans?
A scientist is trying to determine where fault lines are to assess the risk of earthquakes and volcanic activity in an area. Which tool will be the most helpful to him?
a topographic map
a geologic map
a radiation detector
a density meter
i need help asap please!?!?!
THE ANSWER IS B. GEOLOGIC MAPS!!! POSITIVE
Answer:
The correct answer is a geologic map.
Explanation:
Geologic maps are primarily used to resolve the concerns involving Earth menaces, resources, and environments. The geologic maps demonstrate the scattering of distinct kinds of rock and the surficial deposits, as well as the locations of the geologic features like folds and faults.
The geologic maps are in the real sense a four-dimensional data system, and due to its unique characteristics it plays an essential role in evaluating the natural hazards like earthquakes and volcanic eruptions in a particular region and environmental or socioeconomic threat.
The only pre-australopithecine found outside the east african rift valley is
Conservationists establish that the carrying capacity of a population of deer in an extensive geographical area is 945. The current population of deer is 1,100. What is likely to happen to the population of deer?
A.The growth pattern will change from logistic to exponential.
B.The minimal viable population for the deer will increase.
C.Deer from other populations will immigrate to find mates to reproduce successfully.
D.The population will remain healthy, and its numbers will increase.
The population size will drop until the numbers reach the carrying capacity.
Answer: E. The population size will drop until the numbers reach the carrying capacity.
A carrying capacity of the ecosystem is the number of individuals in the population of species a ecosystem can sustain on the basis of availability of resources (food, shelter). Conservationists established that the carrying capacity of a population of deer in an extensive geographical area is 945 which increased to 1,100. This sudden increase in the population of deer, will result in depletion of resources, hence, carrying capacity of the ecosystem cannot sustain increased members of the population. Therefore, the population size will drop until the numbers reach the carrying capacity.
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Explain how to frequency of sound changes as an ambulance approaches you and passes you by as you stand on a sidewalk.
The Doppler effect is observed when the source of a particular set of waves is moving with respect to the observer. Suppose you are standing on the sidewalk, waiting to cross the street. On the far left side of your position, you see an ambulance racing in your direction. In this case, the siren on the ambulance is the source of the waves (sound waves, in this case) and you are the observer.
Apparent Increase in Wave FrequencyAs the ambulance approaches you, the distance between the source of the waves and the observer decreases. Consequently, the siren sounds more shrill as the pitch of the wailing siren ‘sounds’ higher than its original value, as sound waves reach you ‘more frequently’. It should be noted that there is absolutely no difference between the frequency of the original sound waves and the sound waves approaching you; you simply perceive the sound to be higher pitched as the sound waves reach you at a more frequent rate, because the distance between you and the ambulance is closing.
Answer:
As the ambulance approaches you, the distance between the source of the waves and the observer decreases. Consequently, the siren sounds more shrill as the pitch of the wailing siren 'sounds' higher than its original value, as sound waves reach you 'more frequently'.
Explanation:
which of these is a type of mass movement that is likely to happen after a large amount of rain?
A. Landslide
B. Soil Creep
C. Liquefaction
D. Elastic rebound
Answer:
A. Landslide
Explanation:
The landslide can be defined as the movement of the mass of land/ rock/ mountain down the slope. The rain can cause water retention in the soil and may result in decreasing the rigidity of the soil. The decrease in the rigidity of the soil may cause the separation of the land particle and result in landslide.
Traditionally female-dominated occupations, such as nursing and teaching, are known as
The answer is traditional gender roles, it is because if this has been promoted, the female gender will likely choose occupations that are more suitable for them and that are more feminine as traditional gender roles is a kind of gender stereotyping of where a gender should act more like a girl when she is a female in gender.
Cutting the left optic nerve in front of the optic chiasm would result in blindness in the ____.
The "command center" of fluid intake is located in the:
The “command center” of fluid intake is located in the hypothalamus. It is a part of the brain that comprises a number of small nuclei with different functions. It attaches the nervous system to the endocrine system by the use of the pituitary gland.
The 'command center' of fluid intake is located in the hypothalamus, a region of the brain responsible for regulating various bodily functions, including thirst and fluid balance.
Explanation:The 'command center' of fluid intake is located in the hypothalamus, which is a small region of the brain. The hypothalamus is responsible for regulating various bodily functions, including thirst and fluid balance.
When the body becomes dehydrated, specialized cells in the hypothalamus detect this and trigger the sensation of thirst. This prompts the individual to drink fluids to replenish the water that has been lost.
In addition to regulating thirst, the hypothalamus also interacts with the kidneys to control the excretion of water and electrolytes, ensuring proper fluid balance in the body.
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In order for an inherited genetic mutation to result in a phenotypic change for a recessive trait, which of the following must occur? The mutation must be inherited from the father. The mutation must be inherited from the mother. The mutation must be inherited on the x chromosome. The mutation must be inherited by both parents.
In order for an inherited genetic mutation to result in a phenotypic change for a recessive trait, mutation must be inherited by both parents. The correct option is D.
What is recessive trait?A trait that must be made a significant contribution through both parents in order to be present in the offspring. Recessive traits can exist in a person's genes but not manifest in that person.
The dominant trait is the trait that once makes it appear or is noticeably expressed in the organism. The recessive trait is one that is present at the gene level but is masked and does not manifest itself in the organism.
An autosomal recessive disorder is caused by the inheritance of two changed genes (mutations), one from each parent. These disorders are typically passed down through two carriers.
Thus, the correct option is D.
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