Lava flows are typically finer grained (i. e. the rock is made up of smaller mineral grains) than intrusive igneous rocks because the extrusive magma cools quickly so the mineral grains do not have time to grow.
When lava comes out of a volcano and solidifies into extrusive igneous rock, the rock cools very quickly. Crystals inside solid volcanic rocks are small because they do not have much time to form until the rock cools all the way, which stops the crystal growth. Magma, called lava when molten rock erupts on the surface, cools and solidifies almost instantly when it is exposed to the relatively cool temperature of the atmosphere. Quick cooling means that mineral crystals don't have much time to grow, so these rocks have a very fine-grained or even glassy texture.
To learn more about Lava flows , here
https://brainly.com/question/9359428
#SPJ4
What was an unexpected consequence of the green revolution? a. the overuse of fertilizer lead to reduced crop yields over time. b. crop yields were increased. c. modern agricultural techniques were implemented. d. new crop varieties were developed. please select the best answer from the choices provided a b c d
Answer:
The correct answer is A
Explanation:
A. the overuse of fertilizer lead to reduced crop yields over time.
Answer:
I also think the answer is A
______ is the typical supporting tissue of growing stems, leaves, and floral parts.
"Collenchyma" is the typical supporting tissue of growing stems, leaves, and floral parts.
What is collenchyma?In plants, collenchyma is a living tissue made composed of elongated cells with uneven cell walls. Cell walls of collenchyma cells contain substantial amounts of cellulose and are polygonal in appearance.
The functions of collenchyma are-
One of the main ground, or fundamental, tissues of plants, along with parenchyma (living thin-walled tissue), and sclerenchyma, collenchyma can form cylinders or appear as single strands (dead help tissue as thick cell walls).The fact that collenchyma is very plastic—its cells can expand and so adapt to the organ's increased growth—is an important characteristic. The principal sustaining tissue for so many herbaceous plants, the tissue is mostly found in the cortex of both leaves and stems. In secondary-growing plants, its collenchyma tissue is really only momentarily useful before it is crushed by the formation of woody tissue. It frequently makes up both ridges & angles of stems as well as the vein margins in eudicot leaves. One famous instance of collenchyma tissue is the "strings" found in celery stalks.To know more about the Collenchyma, here
https://brainly.com/question/15521272
#SPJ4
Anatomically modern human fossils were discovered in the european upper paleolithic site of group of answer choices cro-magnon, france. atapuerca, spain. petralona, greece. mauer, germany.
Anatomically modern human fossils were discovered in the First European Upper Paleothilic Site was Atapuerca, Spain.
Following are some facts related to the discovery:
One of the most astonishing discoverySkulls of human have been foundDNA analysis report prove them to be NeanderthalsEarliest human communities in EuropeReserve of physical natureLearn more about Neadherthals here, https://brainly.com/question/1182138
#SPJ4
Determine if there is a statistically significant difference between the absorption data of black walnut trees and maple trees.
Based on the data, it can be concluded there is a statistically significant difference between the absorption data of black walnut trees and maple trees.
What does statistically significant difference means?This term is used when there is an important difference between the data gathered of two or more groups.
Is there a statistically significant difference in this case?Based on the date, there is a statistically significant difference between black walnut trees and maple trees because the average carbondioxide absorption is different.
Black Walnut average : 7.26 Maple tree average: 5.82.This shows the difference between these two type of trees is almost 2, which is a big difference that is likely caused by the unique characteristics of each tree.
Learn more about statics in: https://brainly.com/question/24160155
#SPJ1
Pseudomonas aeruginosa is? all of these choices are correct. highly chemical resistant. an opportunist that produces many diverse enzymes. motile. found in soil and water
Pseudomonas aeruginosa is highly chemical resistant, an opportunist that produces many diverse enzymes, motile, found in soil and water.
Pseudomonas aeruginosa :A widespread rod-shaped, gram-negative, aerobic-facultatively anaerobic bacterium called Pseudomonas aeruginosa can harm both plants and animals, including humans. P. aeruginosa, a species of significant medical importance, is a multidrug-resistant pathogen known for its widespread distribution, intrinsically sophisticated mechanisms of antibiotic resistance, and association with serious illnesses, including hospital-acquired infections like ventilator-associated pneumonia and various sepsis syndromes.
Pseudomonas aeruginosa is positive for oxidase, catalase, and citrate. Around the planet, it is present in most artificial surroundings, water, skin flora, and soil. P. aeruginosa has colonized a variety of natural and man-made habitats because it does well in both normal and low-oxygen atmospheres. It consumes a variety of organic materials for nourishment, and due to its adaptability, it can infect animals with weak immune systems or tissues that have been injured.
Learn more about P. aeruginosa here:
https://brainly.com/question/15175466
#SPJ4
The brain relies solely on ________ as its energy source. if it is deprived of this substrate, the cells soon die.
The brain relies solely on "glucose" as its energy source. if it is deprived of this substrate, the cells soon die because during the fasting state, proteins and fats are transformed to glucose.
What is glucose?The primary form of glucose in the body, glucose serves as the body's cells' main source of energy. Glucose can be produced by the body from other chemicals or it can be obtained from the meals we eat.
The bloodstream carries glucose to the cells. Insulin is one of many hormones that regulate blood glucose levels.
Some key points of glucose are-
The primary sugar in your blood is called blood sugar, or glucose. Your body uses it as its primary source of energy, and it originates from of the food you eat. All of the cells in your body receive glucose from your blood to be used as fuel.Diabetes is a condition in which you have too high blood sugar levels. Possessing too much sugar in your blood might have major consequences over time. You might occasionally experience issues with too low or too high blood sugar even if your don't have diabetes. Maintaining a regular eating, exercise, and medication regimen can assist.To know more about glucose, here
https://brainly.com/question/454703
#SPJ4
What types of biomolecules do you hypothesize are present in your unknown sample?
Lipids of biomolecules hypothesize are present in the unknown sample.Lipids that contain for testing then it will react to the added chemical by changing colors.
The bio-molecules which included carbohydrates, lipids, protein and nucleic acids. All these are used by cells and often obtained through foods we eat.The presence of proteins may be determined by mixing solution with biuret test solution /reagents.
Test solution is mixture of copper ion (Cu2+) and sodium hydroxide (NaOH). It is an organic molecule that includes carbohydrate , protein and nucleic acids. Important for the survival of living cells. Protein is the primary building materials of the human body like skin, hairs, muscles and organs are all composed of proteins.
To learn more about bio-molecules here
https://brainly.com/question/24776703
#SPJ4
A client is admitted with hypocalcemia. What are possible causes of hypocalcemia?
Hypocalcemia can result from the following factors:
Lack of vitamin D or vitamin D resistance post-surgery, hypoparathyroidism due to autoimmune illness or hereditary causes of hypoparathyroidism Inadequate vitamin D levels are brought on by renal disease or advanced liver disease. Hypoparathyroidism, also known as pseudohypoparathyroidism Parathyroid gland metastatic growth or heavy metal (copper, iron) invasionAcute hypocalcemia is characterised by neuromuscular irritability. Cardiovascular symptoms of acute hypocalcemia are possible. Chronic hypocalcemia is frequently brought about by insufficient parathyroid hormone or vitamin D levels or by hormone resistance.
The right course of treatment depends on knowing the difference between acute and chronic hypocalcemia and between hypocalcemia with no symptoms and hypocalcemia with severe symptoms.
To learn more about hypocalcemia click here
brainly.com/question/14511652
#SPJ4
Lab mice are bred such that every mouse is literally a clone of any other mouse. Yet, resilience arises regularly in a fraction of the mice during CSDS studies. If they're all clones, but we always find a resilient population, what does that say about how resilience works?
You may heard of the term mutation. Even during cloning, which is done by the process of DNA replication. Certain agents referred to as mutagens bring about changes in the chromosomal constitution, or how certain genes are arranged on the chromosome. Some physical factors include X rays and gamma rays, while some chemical factors include EMS and nitrogenous gases.
Resting membrane potential depends on: i. differential distribution of ions across the axon membrane ii. the opening of voltage-gated calcium channels iii. active transport of ions across the membrane
Resting membrane potential depends on differential distribution of ions across the axon and active transport of ions across the membrane.
What is resting membrane potential?Resting membrane potential is the static potential difference between the inside of the cell to outside due to the differential distribution of ions on both side of the membrane.It is due to uneven distribution of ions, differential permeability of membrane to the ions and the activity of ion channels like Na+ and K+ channel.During the resting membrane potential, a cell is at rest and does not carry any signal.The value of resting membrane potential varies in different cell types.In a typical nerve cell, value of resting membrane potential is -70mV.When the cells are excited, membrane potential changes drastically for few milliseconds and is called action potential.Learn more about resting membrane potential here:
https://brainly.com/question/15459255
#SPJ4
Which experiment would best provide data to support the mechanism by which an odn inhibits in activity?
Keeping integrase (IN) concentration constant and measuring the initial velocity of the reaction at increasing vDNA concentrations in the presence and absence of the ODN, is called competitive inhibition.
This experimental mechanism is competitive inhibition, where ODN (oligodeoxynucleotides) acts as competitive inhibitors. That is the ODN binds to the integrase instead of vDNA (viral DNA) binding to the enzyme integrase.
To determine the activity of the ODN, the Km and Vmax values should be calculated. Km (Michaelis constant) which shows the affinity of the enzyme to the substrate and Vmax (maximum velocity at saturating substrate concentration).
Calculating these two values in the presence and absence of the inhibitor can determine the activity of the inhibitor (ODN).
Learn more about Competitive inhibition on
https://brainly.com/question/14944549
#SPJ1
Which correctly describes the projected growth of the worlds population in the future
The goal of population projections is to predict future changes in the statistics of the human population. These projections are a crucial component of analyses of the population's effects on the environment and the future well-being of humanity.Population growth models relate future estimates to tendencies in human development. In order to understand how economic, social, and technical influences will affect fertility and mortality, and subsequently population increase, these models make trend-based assumptions about how populations will respond to these pressures.
What is Cytoplasmic Projections?
Cytoplasmic In live cells, there is a jelly-like substance called this. It's possible that the cytoplasmic projection separates the cytoplasm from the mitochondria.
To learn more about Cytoplasmic Projections to the given link:
https://brainly.com/question/1408814
#SPJ4
A parasitic fungus that attacks rye plants produces a structure called a(n) ________.
A parasitic fungus that attacks rye plants produces a structure called an Ergot.
Ergot is a fungus that grows on rye and less commonly on other grasses such as wheat. Parasitic fungi that live on plants are called phytopathogenic fungi. The first obvious sign of ergot infection is appearance of 'honeydew', a sticky yellow sugary solution consisting of host sap and conidia between the affected glumes of the rye. Ergotism is a form of poisoning from ingesting grains, typically rye, that have been infected by the ascomycete fungus Claviceps purpurate. Ergotism has no antidote, so treatment involves removing the animals from the source of the ergot and alleviating the symptoms.
To learn more about Ergot , here
https://brainly.com/question/14301752
#SPJ4
What cell structures and pigments are involved in photosynthesis? (check all that apply).
Cell structure like Chloroplasts are involved in Photosynthesis and Primarily Chlorophyll-a Pigment is involved in Photosynthesis.
Photosynthesis is a process of converting light energy into chemical energy to produce sugar required for the survival of life on this planet.
It involves Cell structures like Chloroplasts containing the stroma, grana and the thylakoids. Chloroplasts is a double membrane bound structure containing ribosomes. It is green in color and is responsible for trapping of light energy through the two reaction centres present in it namely PSI and PSII.
Pigments involved in Photosynthesis:
Chlorophyll-a: Primary pigment which forms a Part of Reaction centre Chlorophyll-b CarotenoidsXanthophyllsChlorophyll-b, Carotenoids and Xanthophylls form a part of Light Harvesting Complex (LHC), i.e. they trap the light energy and pass it towards the Reaction Centre.
Learn more about Chloroplasts here, https://brainly.com/question/11136550
#SPJ4
Why is a pulmonary arterial line not an arterial line in the strictest sense of the word?
The pulmonary arterial line not an arterial line in the strictest sense because it carries systematic venous blood returning to the right side of the heart through the microcirculation of the lungs.
Arteries are the blood vessels which plays pivot role in cardiovascular system in the body. These tube like vessels inside the muscles ensures oxygen and nutrients required in the functioning of tissues and organs.
The pulmonary artery differs from regular artery in the sense that pulmonary artery carries deoxygenated blood which is venous blood returning to the heart.
The main pulmonary arteries originates in the right side of the heart, and then split into smaller arteries which further divide into arterioles, eventually narrowing into the capillary microcirculation of the lungs where gas exchange occurs and further the oxygenated blood is carried from lungs to rest of the body through the respective arteries.
To learn more about the Pulmonary Arterial Line here
https://brainly.com/question/4385723
#SPJ4
A mutant p53 gene can lead to the production of a ______, which in turn results in ______
A "faulty transcription factor" produced by a mutated p53 gene, prevents the transcription or translation of a polypeptide that prevents cell proliferation.
Tumor suppressor,p53 gene:
The p53 gene, a tumor suppressor is frequently inactivated during the tumorigenic process. The p53 gene is often altered, producing a persistent mutated polypeptide whose development is thought to be a characteristic of cancer cells. In contrast to losing their tumor-suppressing properties, mutant p53 proteins frequently acquire new carcinogenic properties that provide cancer cells an edge in terms of both survival and proliferation. It is fascinating to note that p53 gene mutations have been linked to several stages of the multi-step malignant transformation process, each of which contributes differently to tumor start, amplification, competitiveness, and migration.Learn more about the p53 gene here:
https://brainly.com/question/19581609
#SPJ4
X-gal is included in the growth medium on which cells transformed with bacterial plasmids are grown. The reason x-gal is included is to _______.
Identify bacteria that contain a recombinant plasmid
Ampicillin is an antibiotic that stops E. coli from building cell walls, killing the bacteria in the process. The presence of the ampicillin-resistance gene causes the development of an enzyme that prevents the action of ampicillin, allowing the bacteria to survive
What is Plasmid DNA ?Bacteria and certain other microscopic species contain plasmids, which are tiny circular DNA molecules. Physically distinct from chromosomal DNA, plasmids multiply on their own.
Only a small number of genes are carried by plasmids, which are separate from chromosomes, the main cell structures that house DNA. Plasmids can be taken up from the environment and passed between bacteria since they have the ability to self-replicate. The host organism makes use of plasmids to deal with situations brought on by stress.Learn more about Plasmid DNA here:
https://brainly.com/question/21265857
#SPJ4
The major disadvantage of the manual method of lubricating chain drive is ________.
Following are the disadvantages of manual lubrication:
Manual lubrication of chain drives requires safe maintenance and environmental regulations.Manual lubrication does not guarantee an optimal lubrication at the specific location.There remains a risk for the chances of negative productivity and increasing costs.Many machines are difficult to lubricate when in use.Excess lubrication can lead to damage and excess heat formationUnder lubrication can cause higher energy usage and damage to bearings.Learn more about Lubrication, https://brainly.com/question/20338792
#SPJ4
A benefit of parental care is ___________, while a disadvantage is ___________.
A. symbiosis, parasitism
B. increased survival, high cost of time and energy
C. group behavior, feeding the group
D. incubation of eggs, less young can be raised
An analogy of the hypothalamus would be?
Answer choices:
Police force of a country
Major cities of a country
Citizens of a country
The Michael Jackson of a country
Legislative body of a country
An analogy of the hypothalamus would be the police force of a country.
What is the hypothalamus?The hypothalamus is one of the major regions of the brain. It functions as the smart control center of the body.
The hypothalamus controls body physiology and ensures that the normal range of operation of physiological processes is not exceeded. In other words, it keeps orderliness in physiological processes.
For example, the normal range of human body temperature is 36.5 to 37 degrees celsius. Once this range is breached, the hypothalamus activates the body system to return it back to normal.
This is comparable to the work of the police force of a country. They keep law and order. They ensure that laws are not broken and when they are, they ensure swift action to restore normalcy.
More on the hypothalamus can be found here: https://brainly.com/question/9113672
#SPJ1
Secondary bacterial infections occur frequently during influenza epidemics primarily because?
Because the virus causes severe tissue necrosis and inflammation, secondary bacterial infections happen often during influenza outbreaks.
What are Secondary infections?
There are several ways that a primary infection can increase susceptibility to disease, leading to a secondary infection.
A secondary infection is one that develops during or following the treatment for a primary illness. It has been determined that a secondary bacterial infection affects up to 75% of people who acquire pneumonia after contracting the flu.
The prevalence of influenza and related secondary bacterial illnesses can be decreased by using infection prevention techniques. The best method to prevent this is to be vaccinated against the flu every year and practice proper hygiene, like frequent, thorough handwashing.
To know more about Influenza refer:
https://brainly.com/question/15900485
#SPJ4
The __________ perform(s) the excretory and homeostatic functions of the urinary system.
The kidney perform the excretory and homeostatic functions of the urinary system. Thus, option A is correct.
What is the role of kidney?These are the pair of bean-shaped structure present just below the rib cage. Each kidney is present on each side of the spine.
Beside cleaning the metabolic waste of the body by releasing urine, the principal role is maintaining homeostasis of the body.
They also secrete some hormones like Erythropoietin, activate vitamin D3, renin – angiotensin -prostaglandins.
It also maintain the blood pressure, making red blood cells and maintaining strong bones, maintain salt -water balance of the body.
Hence, option A is correct
Learn more about kidney, here:
https://brainly.com/question/28021240
#SPJ4
Your question was incomplete. The probable question was
The __________ perform(s) the excretory and homeostatic functions of the urinary system.
A. kidney
B. Ureter
C. Urinary bladder
D. All of the above
A geologist’s compass differs from the more widely known orienteering compass in that the geologist’s compass ________.
A geologist's compass differs from the more widely known orienteering compass in that the geologist's compass can measure dip and plunge angles.
What is a compass?A compass is an instrument used to examine one’s position on the map area and to determine the relative position of various objects.It gives an idea of where you are heading to and where you need to be going.The geologist’s use a special type of compass which can not only determine the position but also make structural measurements of geological structures like dip of areas like sedimentary beds and plunge of fold axis.A clinometer is necessary in a compass to measure all the structural data. It measures features from the horizontal like dip and plunge, and gradient.Learn about magnetic compass here:
https://brainly.com/question/22964998
#SPJ4
Name the gland cells of the epithelium in the small intestine.
Goblet cells, unicellular gland cells, enteroendocrine cells of the epithelium in the small intestine.
What is epithelium?Layers of cells known as "epithelium" line hollow organs and glands. These cells are also responsible for the body's exterior.The epithelium is a type of body tissue that covers all of the internal and exterior body surfaces, lines hollow organs and body cavities, and makes up the majority of glandular tissue.They make up the majority of the tissue in glands, line body cavities and hollow organs, and cover all of the body's surfaces. They conduct a multitude of activities that include protection, secretion, absorption, excretion, filtration, diffusion, and sensory reception.Because word was first used to describe the translucent layer of tiny tissue "nipples" on the lip, epithelium got its name. The plural version of the term is epithelia, and it has both mass and count connotations.A form of animal tissue known as an epithelium is composed of tightly packed cells, or epithelial cells, that lie atop a basement membrane. Its purpose is to cover or line different bodily surfaces and cavities.
Learn more about epithelium here:
https://brainly.com/question/7446006
#SPJ4
What happens with oxygen and carbon dioxide during the process of pulmonary respiration? emt
Gas Exchange happened during the process of pulmonary respiration which is essential for the human body.
In your chest, lungs are present in pairs that are spongy, pinkish-gray organs.
Our body inhales and exhales air, when our body inhales, then oxygen enters our body. And exhales the carbon dioxide that is the waste gas. This process is called a Gas exchange.
In the respiratory system, the lungs are the center part. It also includes the trachea (windpipe), blood vessels, muscles of the chest wall and diaphragm, and other tissues. With all of these, the gas exchange becomes possible. Our brain also plays an important role as it controls your breathing rate.
Learn more about respiration: https://brainly.com/question/18256452
#SPJ4
The meselon-stahl experiment demonstrated that dna replication produces two dna molecules each composed of
The meselson-stahl experiment demonstrated that DNA replication produces two DNA molecules each composed of nitrogen isotopes.
Matthew Stanley Meselson and Franklin William Stahl in the US demonstrated semi-conservative DNA replication in the 1950s, showing that each daughter DNA molecule contains one new daughter subunit and one subunit conserved from the mother DNA molecule. This work was later named after them. Meselson and Stahl came to the conclusion that DNA molecules can reflect semi-conservatively based on their observations and experimental findings. The study of the semi-conservative character of DNA replication or the copying of cells did not end there.
The DNA replication process was examined in a 1958 experiment by Matthew Meselson and Franklin Stahl using the fast-dividing E. coli bacterium. By centrifuging nitrogen isotopes in calcium chloride, 15N (heavy) and 14N (normal) can be distinguished from one another based solely on their densities (CsCl).
To know more about meselson-stahl experiment refer to: https://brainly.com/question/13244522
#SPJ4
Cyclogenesis occurs frequently on the eastern slopes of the rockies as a result of ____.
Answer:
Cyclogenesis occurs frequently on the eastern slopes of the rockies as a result of compressional heating.
A trna with the anticodon sequence 5′ iua 3′ will not normally exist because?
A trna with the anticodon sequence 5′ iua 3′ will not normally exist because 5′ UAA 3′ is a stop codon.
There are three stop/termination codons UAA, UAG, and UGA.
A unique type of RNA molecule is called a transfer RNA (tRNA). Matching an mRNA codon to the amino acid it codes for is its responsibility. Anticodon is a set of three nucleotides found in each tRNA. One or more distinct mRNA codons can bind to the anticodon of a particular tRNA. The amino acid encoded by the codons to which the tRNA binds is carried by the tRNA molecule as well.
At the third position of the codon, atypical base pairs—between nucleotides other than A-U and G-C—can develop. This phenomenon is referred to as wobble.
To learn more about anticodon click here
brainly.com/question/15057641
#SPJ4
Which pcs root operation is used for an adhesiolysis when adhesions are freed from a body part they are restricting?
Release pcs root operation is used for an adhesiolysis when adhesions are freed from a body part they are restricting.
What is release Root operations?Root operation is refers to the cutting of the upper or lower extremities.
What is adhesiolysis?Adhenolysis is the surgical procedure that removes abdominal adhesion to regain the normal anatomy and functionality of an organ.
What are adhesion?Adhesions are the bands of scar-like tissue that form inside of the organ that cause tissue or organ to stick together.
Learn more about ICD 10 PCS Root operation here: https://brainly.com/question/19550778
#SPJ4
The centrosome replicates during the s phase and begins to separate during the ______
The centrosome replicates during the s phase and begins to separate during the M phase.
What does the M phase stand for?
mitosis
M stands for mitosis. This is where the cell actually partitions the two copies of the genetic material into the two daughter cells. After M phase completes, cell division occurs and two cells are left, and the cell cycle can begin again.What happens during the M phase?
When a cell is in the M phase, it divides, first through nuclear division (mitosis), then through cytoplasmic division (cytokinesis). The DNA is replicated in the earlier S phase, and cohesins keep each replicated chromosome's two copies (known as sister chromatids) bound to one another.What is happening at the S phase and the M phase?
In the eukaryotic cell cycle, chromosome duplication occurs during "S phase" (the phase of DNA synthesis) and chromosome segregation occurs during "M phase" (the mitosis phase).
Learn more about M phase
brainly.com/question/210041
#SPJ4
