How did the work of hershey and chase contribute to the model of dna as the genetic material?
Magma that cools and crystallizes on Earth's surface forms A. marble. B. intrusive rocks. C. extrusive rocks. D. quartz.
Magma that cools and crystallizes on Earth's surface forms extrusive rocks, which are characterized by their fine-grained or glassy textures due to rapid cooling. These are different from intrusive igneous rocks which cool slowly, allowing larger crystals to form.
Magma that cools and crystallizes on Earth's surface forms C. extrusive rocks. These rocks are typically formed from lava that has been extruded onto the Earth's surface from volancoes or fissures. As this material, known as lava, cools rapidly in the air or water, it solidifies quickly compared to magma that remains underground. The rapid cooling process does not allow large crystals to form, and as a result, extrusive igneous rocks such as basalt and rhyolite often have very fine-grained or even glassy textures.
Intrusive igneous rocks, on the other hand, form when magma cools and crystallizes slowly beneath the Earth's surface, leading to the formation of rocks with larger, visible crystals, like granite. Due to their slower cooling process, the crystals have more time to grow.
Thus, the correct answer to your question is: Magma that cools and crystallizes on Earth's surface forms C. extrusive rocks.
The population size of a predator species is directly controlled by _.
Answer:
Population size of its prey.
Explanation:
Predators are the organisms that derive their nutrition by killing other organisms (prey). Increase in population size of prey increases the food availability for predators and leads to an increase in their population size. On the other hand, reduced prey population reduces the population size of predators due to low food availability.
You own a winery in Napa Valley. An assistant accidentally leaves the lid for a vat of wine slightly ajar. Would the yeast inside continue to perform alcoholic fermentation? Briefly explain your answer with some details about what would happen.
When the lid for a vat of wine is slightly open, the yeast inside can continue to perform alcoholic fermentation because the carbon dioxide produced by the yeast during fermentation will act as a blanket over the wine. Nevertheless, the air around the fermenter must be still and enough carbon dioxide should be produced to continue alcoholic fermentation. However, at some point, carbon dioxide will fall and can no longer protect the wine. This is the right time to get your wine covered before it will be vulnerable to undesirable microorganisms.
Therefore, open fermentation is good in the early stages of fermentation because yeast need oxygen to synthesize sterols and assimilate fatty acids to ensure the nutrients it needs to multiply and ferment the 70% of the sugar from the fruit. Furthermore, the yeast is responsible in decomposing sugar from the grapes into alcohol and carbon dioxide.
Which of the following is an example of an internal combustion engine? cannon steam boat steam locomotive catapult
Answer:
The Cannon
Explanation:
Remember that there is an explosion INSIDE of the cannon, which propels projectiles, typically cannonballs.
An example of an internal combustion engine from the options is The Cannon
An internal combustion engine is type of engine whereby the ignition and combustion of the fuel used by the engine occurs inside the engine. internal combustion engines are widely used types of engine consisting of a cylinder (fixed ) and piston.
Steam engines make use of water as a source of fuel and not fossil fuels therefore they are not internal combustion engine
Hence from the options given above an example of an internal combustion engine is the Cannon engine.
learn more : https://brainly.com/question/2951102
List 3 heavenly bodies that were discovered using radio waves
The 3 heavenly bodies that were discovered using radio waves are pulsars, quasars, and cosmic microwave background radiation.
Pulsars are rotating neutron stars that emit beams of radio waves. They were first discovered in 1967 by Jocelyn Bell Burnell, a graduate student at the University of Cambridge.
Quasars are extremely bright objects that emit large amounts of energy from their central regions. They are thought to be powered by supermassive black holes. Quasars were first discovered in 1963 by astronomer Maarten Schmidt.
The cosmic microwave background radiation is a faint afterglow from the Big Bang. It was first discovered in 1965 by Arno Penzias and Robert Wilson.
To know mroe about radio waves:
https://brainly.com/question/13989450
#SPJ12
Radio waves have helped astronomers discover cosmic radio sources such as the Milky Way Galaxy and Jupiter, while also assisting in radar observations of the solar system.
Explanation:The three heavenly bodies that were discovered using radio waves are:
The Milky Way Galaxy: Karl G. Jansky discovered the first source of cosmic radio waves from the Milky Way Galaxy.Jupiter: Later observations showed that the radio waves are coming from a region surrounding Jupiter, indicating charged atomic particles spiraling around a magnetic field associated with the planet.Solar System Objects: Radar observations have been used to determine distances to planets, measure how fast objects are moving, and investigate the surfaces of Mercury, Venus, Mars, and the large moons of Jupiter.Learn more about Heavenly Bodies Discovered Using Radio Waves here:https://brainly.com/question/9121218
#SPJ11
where is 90 percent of earths ice found
all of the following characteristics of the moon contribute to preservation of its impact craters except
A) the moon's lack of atmosphere
B) the lack of weather events on the moon
C) the lack of geologic processes on the moon
D) the moon's lack of variety in its rock compositon
Which instruments do volcanologists use to predict volcanic eruptions
In the small intestine, the pancreas secretes ____________ to digest triglycerides
In the small intestine, the pancreas secretes (pancreatic) lipase to digest triglycerides.
The pancreatic lipase causes lipolysis by acting as ester bond, breaking the bond and releasing the fatty acid. Lipids (triglycerides) break down into fatty acids, monoglycerides and diglycerides enabling the duodenum to absorb it.
How are viruses spread from cell to cell?
New viruses are released after the lytic cycle. ~Gradpoint/Novanet
A cancer treatment that kills unwanted cells with drugs is called _____.
metastasis
radiation
chemotherapy
surgery
Answer: Chemotherapy
Scientists take lots of time before removing a tumor. It is a process that involves many steps. If they find the tumor, they remove it with surgery. Doctors use radiation therapy to break the tumor apart using radiation beams. With Chemotherapy doctors use drugs to infect/poison the tumor.
The advantages of seeds, compared to spores, include ________.
What advantages might a multicellular alga have over a swimming single-celled one?
The allele for a hitchhiker's thumb is recessive compared to straight thumbs, which are dominant. . in a population of 1000 individuals, 510 show the dominant phenotype. how many individuals would you expect for each of the three possible genotypes for this trait?
The body naturally relaxes between 12:00-1:00 a.m. and 4:00-5:00 a.m. This is referred to as our ___________________.
Sleep schedule
REM cycle
Celestial pattern
Circadian rhythm
Circadian rhythm regulates our body's sleep-wake cycle, influenced by various factors and characterized by different sleep stages. It plays a crucial role in maintaining overall health and well-being.
Circadian rhythm refers to our body's natural cycle of rest and activity, influenced by exposure to sunlight, daily schedule, and biological changes like body temperature fluctuations. This rhythm includes changes in body temperature, blood pressure, and blood sugar.
During a typical night, our sleep cycles move between REM and non-REM sleep stages, with each cycle lasting about 90 minutes. REM sleep, characterized by rapid eye movement and dreaming, constitutes about 25% of total sleep time.
In a healthy circadian rhythm, it is recommended to go to bed between 9:00 and 11:00 p.m. and wake up early in the morning or around midmorning to align with the body's natural relaxation periods.
which phrase best describes a meteoroid
A blank contains paired statements that can be used to identify organisms
Why is
e. coli such a convenient host cell for transformation in biotechnology?
Which zone of the ocean is most hospitable to life?
Answer: Epipelagic
Explanation: The Epipelagic zone is the uppermost zone of the ocean where there is an adequate amount of sunlight reaches the organism.
This zone has pytoplanktons and zooplanktons. The phytoplanktons are the organism that are capable of photosynthesis.
The food prepared by this process is used by the zooplankton and other organism.
the number of waves passing a given point in one second is the
Write your answers to the following questions in the essay box below: Which bird was most successful in the first 500,000 years? Why do you think so? What kinds of mutations were more beneficial? Why? Which bird(s) was/were most successful after 1,000,000 years? Why were they more successful? How similar or different were the birds after 1,000,000 years compared to the original bird characteristics you chose? Why did they change that way? (Think about the environments you created in the second part.) Which characteristics do you think affect the overall survival of the bird? Why? How does this activity simulate natural selection?
The importance of variation in evolution by natural selection is demonstrated through the Galápagos finches, emphasizing the impact of adaptation and natural selection on bird characteristics.
Adaptation: In the Galápagos finches, variation in beak size was crucial for survival during droughts. Finches with big beaks could crack open all seed sizes, while those with small beaks thrived when small seeds were abundant.
Natural Selection: The beak size changes demonstrated how natural selection favored traits beneficial for specific environments, leading to the evolution of more successful birds over time.
Impact of Characteristics: Traits like beak size directly affect a bird's survival by determining the type of food it can access, showcasing the role of characteristics in overall survival.
The stage of a virus where it is activated to perform the function for which it was intended is referred to as the _________. select one:
a. propagation phase
b. triggering phase
c. execution phase
d. none of the above
Answer:
The correct option is B. The stage of a virus where it is activated to perform the function for which it was intended is referred to as the triggering phase.
Explanation:
The life cycle of a virus consists of the following stages:
The Dormant phase:
In this phase, the virus doesn't take any action. It just manages to get into the system or software.
The Propagation phase
In this phase, the virus makes copies of itself.
The Triggering Phase
In this phase, the virus performs its function.
The Execution Phase
In this phase, the destruction made by the virus can be seen.
Where are proteins made
its b thats the right awnser thank me later
Can you identify which characteristics are found in which phyla?'
There are different characteristics for differentiating the members of different phyla in kingdom animalia.
The phylum is the level of organization just below the kingdom. In Animalia there are nine major phyla.
The first is porifera and it has a cellular level of organization. It is acoelomate and does not have symmetry.
After that the Coelenterata has tissue level of organization, radial symmetry and no coelom. They are essentially sessile, and have polyp or medusa body forms.
Ctenophora called comb jellies are radially symmetrical with tissue level of organization, no coelom and have external plates of ciliated plates called comb plates.
Bilateral symmetry is observed from platyhelminthes, they lack coelom and from this phyla organ & organ system level of organization is observed. Aschelminthes are pseudocoelomates and have a false coelom. From annelida onwards coelom is present. Annelids have segmentations (internal and external and are called roundworms. Arthropods have jointed legs and outer exoskeleton of cuticle. Molluscs have a visceral hump and a muscular foot and often an exoskeleton of calcium and radula for feeding.
Echinodermates has radial symmetry and a water vascular system for locomotion, feeding, movement etc.
Hemichordates are worm-like with, proboscis collar and a trunk.
Cordata members have a notochord and a dorsal hollow nerve cord. And may have gill slits with limbs or fins
Based on the stages of development and the characteristics present the phyla of the animalia are described. Traits like level of organization, body symmetry, the development of the notochord etc are used for the classification.
Thus the traits of major phyla are described above.
Learn more about phyla here:
https://brainly.com/question/31678021
#SPJ6
A complex network of glands that release tiny amounts of hormones into the bloodstream of humans and other vertebrate animals is the ____.
The HMGR-3 allele fails to bind with SREBP. The portion of the gene that is broken in this allele is the
Out of the following given choices;
Allosteric site
Active site
Regulatory region
Coding region
The answer is Regulatory region. This region controls the activity of catalytic domain. HMGR-3 codes for the HMG-CoA reductase significant in cholesterol metabolism. SREBP binds to the gene regulatory region. The protein promotes transcription of the gene.Samantha has entered several formulas in her worksheet. all of a sudden, she realizes that the cells that once displayed the formula results are now displaying the formulas and all of the columns are wider. she must have switched to ____.
The student is referring to the formula view mode in Microsoft Excel, where cells display formulas instead of results. To switch back to normal view, Samantha can go to the 'Formulas' tab and click on 'Show Formulas' button. She can also adjust column width by double-clicking on the right border of column header.
Explanation:The student is referring to the formula view mode in Microsoft Excel. When this mode is enabled, the cells display the formulas instead of the results. It is possible that Samantha inadvertently switched to this mode.
To switch back to the normal view mode, Samantha can go to the 'Formulas' tab and click on the 'Show Formulas' button to toggle the formula view on or off. Additionally, the wider columns can be adjusted by double-clicking on the right border of the column header or using the 'AutoFit Column Width' option under the 'Home' tab.
If Samantha needs assistance with a specific formula or wants to learn more about Excel, she can seek help from her teacher, use online tutorials, or consult the Excel help documentation.
An advantage of an alimentary canal over a gastrovascular cavity is that the alimentary canal _____.
Mr. carusa has chronic hypertension. he is scheduled for a procedure in which x-rays are taken after contrast material is injected into the bloodstream to outline renal blood vessels. this procedure is called:
Final answer:
The procedure used to outline renal blood vessels by injecting contrast material into the bloodstream, commonly for patients with chronic hypertension, is called angiography.
Explanation:
The procedure in which x-rays are taken after contrast material is injected into the bloodstream to outline renal blood vessels for a patient with chronic hypertension, like Mr. Carusa, is called angiography. This diagnostic tool involves the use of a dye that is injected through a catheter into an artery or vein, making blood vessels visible on the x-ray or imaging scans such as CT scans or MRIs. Angiography provides detailed images of the blood vessels and can help healthcare professionals diagnose conditions such as arteriosclerosis, blockages, and determine the blood flow in the kidneys.