Answers
Answer:
EF
Explanation:
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Related Questions
What temperature does cold/warm front bring,
Answers
Answer:
Temperature changes associated with cold fronts can be as much as 50 °F (30 °C). When cold fronts come through, there is usually a quick, yet strong gust of wind, that shows that the cold front is passing.
Explanation:
What makes amino acids different from each other? (4 points)
Amino group
Carboxyl group
Hydrogen atom
Side chain
Answers
Answer:
The answer is side chain/group.
Answer:
d
Explanation:
58.The best description of the induced fit model of enzyme function isa. a cofactor must first bind to the active site, allowing the substrate to fit properly.b.a molecule not directly involved in the catalysis interacts with a site on the proteinfar from the active site, changing the shape of the active site to make it work.c. the active site, the substrate, or both change shape upon binding so that theactivation energy of the desired change is decreased.d. the active site has a definite, rigid shape that only fits one substrate molecule.a short protein chain that blocks access to the active site is chemically removed asthe substrate approaches.
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Answer:
The correct answer is C:
the active site, the substrate, or both change shape upon binding so that the activation energy of the desired change is decreased.
The induced fit model for enzymed function describes how the substrate is able to induce the proper alignment of the active site of the enzyme. Both the active site of the enzyme and the substrate change in conformation until they are completly bound.
This theory explains why enzymes may exhibit broad specificity, that is that they can bind to a variety of molecules.
What are the 4 steps of mitosis? What occurs during each?
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Explanation:
There are four stages of mitosis: prophase, metaphase, anaphase and telophase.1) Prophase: chromatin into chromosomes, the nuclear envelope break down, chromosomes attach to spindle fibres by their centromeres 2) Metaphase: chromosomes line up along the metaphase plate (centre of the cell) 3) Anaphase: sister chromatids are pulled to opposite poles of the cell 4) Telophase: nuclear envelope reforms, chromosomes unfold into chromatin, cytokinesis can begin The order of the stages of mitosis can be remembered using the mnemonic PMAT.
3. Each graph shows a causal or correlational relationship between changes in the biosphere and changes in Earth’s other systems. Explain the causal or correlational relationship each graph represents.
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Answer:
Explanation:
The graph goes down of fermentation process with an increase in temperature
Increased temperatures of the fermentation process in the range of 10 to 25°C which resulted in increased ester production. According to Peddie, when the temperature is increased, the concentration of esters production during the fermentation process is also increased because an increase occurs in the membrane fluidity. Fermentation is defined as the process of sugars broken down by the enzymic activity of microorganisms in the absence of oxygen. Microorganisms like bacteria and fungi have specific sets of metabolic genes that allow them to produce enzymes in order to break down different types of sugar.So we can conclude that fermentation process slow down with increase in temperature.
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Hydropower is a renewable resource because ________.
of the Sun
of the water cycle
the oceans will never run out of water
new water is constantly being made
Answers
Answer:
Of the Water Cycle.
Explanation:
The energy generated through hydropower relies on the water cycle, which is driven by the sun, making it renewable. Hydropower is fueled by water, making it a clean source of energy.
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Weathering is a process in the rock cycle. How does weathering contribute to the formation of rocks?
Here are the answers
It increases the temperature and creates metamorphic rock.
It deposits sediment and forms sedimentary rock.
It breaks down rock into smaller pieces that can become sedimentary rock.
It causes lava to cool and harden into igneous rock.
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Answer:
It breaks down rock into smaller pieces that can become sedimentary rock.
Explanation:
Weathering is the physical disintegration and chemical decomposition of rocks to form sediments and soils.
The process of weathering is very important for the formation of rocks because it breaks down rocks into smaller pieces.
By virtue of this, these tiny rock pieces called sediments are gathered and assembled together through erosion. They are then taken away and deposited in basins where they are transformed into sedimentary rocks. This is a very vital process in the rock cycle.What is the function of ATP, and why is it important?
Answers
ATP(adenosine tri-phosphate) stores energy between it's 2nd and 3rd phosphate groups. When the 3rd phosphate group is released ADP(adenosine mono-phosphate) is created and energy is being released. This molecule is important because it stores the energy from cellular respiration and most cellular processes require the energy released by ATP.
what kind of cell is shown in the illustration below?
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The cell shown in the illustration is a eukaryotic cell undergoing mitotic cell division. Mitosis is the process by which a parent cell divides into two genetically identical daughter cells.
Eukaryotic cells divide through a process called mitosis. In addition to producing genetically identical daughter cells in unicellular creatures, it is in charge of the development and repair of tissues in multicellular species. The four stages of the ongoing process of mitosis are prophase, metaphase, anaphase, and telophase.
The chromatin condenses into discernible chromosomes during prophase. The chromosomes align in the cell's center during metaphase. Sister chromatids split apart and travel to the cell's polar opposites during anaphase. The nuclear membrane finally reforms over the separated chromatids during telophase, and the cell splits into two daughter cells through cytokinesis that is genetically identical to one another.
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Which of the following is a true statement about sources of protein?
Multiple Choice:
a. Plant sources of protein tend to be higher in dietary fiber than animal sources of protein.
b. Plant sources of protein tend to be higher in cholesterol than animal sources of protein.
c. Plant sources of protein tend to be higher in saturated fat than animal sources of protein.
d. Animal sources of protein tend to be higher in phytochemicals than plant sources of protein.
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The given statement (a) "Plant sources of protein tend to be higher in dietary fiber than animal sources of protein" is true because dietary fiber content is generally low in animal sources of protein.
It is true because plant-based proteins such as beans, lentils, and whole grains typically contain more dietary fiber compared to animal sources of protein like meat and dairy, which do not contain any fiber. Dietary fiber is important for digestive health and can help reduce the risk of chronic diseases such as heart disease, diabetes, and cancer.
Animal sources of protein, on the other hand, are generally low in dietary fiber, and some are also high in cholesterol and saturated fat, which can contribute to an increased risk of chronic diseases. However, animal sources of protein can also provide important nutrients such as vitamin B12, iron, and zinc that can be more difficult to obtain from plant-based sources.
Overall, a balanced diet that includes a variety of protein sources, both plant-based and animal-based, is recommended for optimal health. Thus, option (a) is correct.
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bone marrow transplantation is the treatment of choice in other cases of severe immunodeficiency. would it work in patients with digeorge syndrome? explain.
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For the treatment of full DiGeorge syndrome, researchers discovered that survival after bone marrow transplant was better than 75%, similar to thymic transplantation.
DiGeorge syndrome is an immunodeficiency marked by thymic dysplasia, which results in T cell lymphopenia. Most people have an increased vulnerability to infections as well as a higher prevalence of autoimmune illnesses such as autoimmune thrombocytopenic purpura.
Patients with DGS may have lower T-cell production than their counterparts, making them more susceptible to viral, fungal, and bacterial infections. The T-lymphocyte deficiency, like the other DGS disorders, varies from patient to patient.
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1. What does H.I.P.P.O. stand for? Habitat destruction, Invasive species, pollution, population Increase and
over population
over production
over use
over exploitation
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Human,increase population and Overharvesting
What is the mode of inheritance for Jekyll-Hyde disease? (Hint: look at individuals Ill-1 & III-3) O a. Autosomal Dominant O b. Autosomal Recessive O c. X-Linked Dominant O d. X-linked Recessive
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The mode of inheritance for Jekyll-Hyde disease is: a. Autosomal Dominant
To determine this, we need to look at individuals III-1 and III-3. If they are affected, then at least one of their parents must be affected as well. In this case, we can see that one parent from each generation is affected, indicating that the trait is passed down through an autosomal dominant inheritance pattern. The family pedigree only shows two individuals (Ill-1 and III-3) with the disease, and there is no information about their parents or siblings.
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what are four possible renewable resources of electric energy
Answers
wood, wind, sunshine, geothermal energy, biomass and water stored behind dams in lakes and reservoirs.
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What letter is the cell wall
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a - nucleus
b - smooth endoplasmic reticulum
c - cytoplasm
d - cellulose
e - rough endoplasmic reticulum
f - Golgi apparatus
g - cell wall
h - mitochondria
what particle allows an atom to create new substances
Answers
Answer:
An atom makes up everything in the universe
Explanation:
Which type of molecule is shown below?
OH OH
НО.
O
OH
OH
0 A. Lipid
0 B. Amino acid
O c. Carbohydrate
D. Nucleic acid
Н
SUBMIT
Answers
Answer:
C. Carbohydrate
The given molecule consists of hydroxyl groups (-OH) attached to a carbon atom, making it a carbohydrate. Therefore, option C, Carbohydrate, is the correct answer.
Explanation:
Carbohydrates are organic molecules consisting of carbon, hydrogen, and oxygen atoms. They are classified based on the number of sugar units they contain. Monosaccharides, such as glucose and fructose, contain a single sugar unit, while disaccharides, such as sucrose and lactose, contain two sugar units. Polysaccharides, such as starch and glycogen, contain many sugar units and are used for energy storage in plants and animals.
Answer:
B. Amino Acid
Explanation:
The molecule shown in the picture is an amino acid, specifically serine. Amino acids are the building blocks of proteins and have a characteristic structure consisting of an amino group (-NH2), a carboxyl group (-COOH), and a side chain (R group) that varies depending on the specific amino acid. In the case of serine, the R group is a hydroxyl group (-OH), which is the functional group shown in the picture.
why is it that nitrogen is often a limiting plant nutrient, despite the fact that the atmosphere is 80% nitrogen gas (n2)? why is it that nitrogen is often a limiting plant nutrient, despite the fact that the atmosphere is 80% nitrogen gas (n2)? because n2 easily leaches away from soil because plants cannot fix n2 because plants cannot assimilate nitrogen-containing compounds
Answers
Nitrogen is often a limiting plant nutrient because plants cannot directly use atmospheric nitrogen gas (N2) for their growth and development. N2 must first be converted into a usable form by a process called nitrogen fixation.
What is Nitrogen fixation?
Nitrogen fixation is the process by which certain bacteria convert atmospheric nitrogen gas into nitrogen-containing compounds such as ammonia (NH3) or nitrate (NO3-), which plants can then assimilate. However, this process is not very efficient and can be limited by factors such as the availability of the necessary bacteria, temperature, and pH levels.
Additionally, nitrogen-containing compounds can easily leach away from the soil, making them less available to plants. Therefore, despite the abundance of nitrogen gas in the atmosphere, it is often a limiting plant nutrient because of the difficulty in converting it into a usable form for plants.
Why is nitrogen often a limiting plant nutrient?
The reason nitrogen is often a limiting plant nutrient, despite the atmosphere being 80% nitrogen gas (N2), is that plants cannot directly utilize N2 from the atmosphere. In nature, plants rely on the bacteria, often found in root nodules of legumes, to provide them with the usable nitrogen compounds they need for growth.
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For an X-linked recessive trait, 9% of the females in the population are affected. What percent of the males would be affected? What percentage of the population is represented by carriers? Show your work and circle your answers.
Answers
Answer:
Frequency of affected males: 30%
Carriers are represented by heterozygous females: 42%
Explanation:
According to the Hardy–Weinberg principle:
1 = q2 + 2pq + p2
1 = q + p
p2 = 0.09 >> p = 0.3
Males have only one X chromosome, thereby the frequency of affected males is the allele frequency >> 0.3 (30%)
q = p - 1= 0.7
Carriers are females that are heterozygous >>
2 pq = 2 x 0.3 x 0.7 = 0.42 >>> 42%
If an intestinal cell in a butterfly contains 24 chromosomes, a butterfly egg would contain
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Answer:
You both win! Different butterflies actually have different numbers of chromosomes! The Polyommatus atlantica butterfly of the Lycaenidae family has 446 chromosomes. On the other hand, the Hypothyris thea butterfly of the Nymphalidae family has only 10 chromosomes. Others like the Squinting Bush Brown butterfly (Bicyclus anynana) has 28 chromosomes and the Red Postman butterfly (Heliconius erato) has 21 chromosomes.
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An experiment was designed to investigate the effect of caffeine on the heartbeat of Daphnia magna, or water fleas. These tiny, aquatic animals are used because their transparent bodies make it easy to see their hearts and measure their heart rates. Two populations of Daphnia were raised, (A) and (B). Both populations lived in tanks of water at the same temperature and received identical amounts of food. Every 2 hours, water fleas from both populations were selected and their heartbeats were monitored. Population (A) had 0.5 g of caffeine given to them five minutes before their heartbeat was checked. Population (B) were given 0.5 g of water and with no caffeine.
Answers
Answer:
This question is incomplete. It is asking to identify the following in the experiment:
Independent variable: CAFFEINE
Dependent variable: HEARTBEAT
Experimental group: POPULATION A, which were given 0.5g of caffeine
Control group: POPULATION B, which were not given caffeine
Constants: SAME TEMPERATURE, SAME AMOUNT OF FOOD, SAME TIME BEFORE CHECKING
Explanation:
Independent variable in an experiment is the variable which is changed or manipulated by the experiment. In this experiment, the independent variable is the CAFFEINE.
Dependent variable is the variable that is measured by the experiment or in other words, the variable that responds to changes made to the independent variable. In this experiment, the dependent variable is the HEARTBEAT measured.
The experimental group of an experiment is the group that receives the experimental treatment (caffeine). In this experiment, the POPULATION A of Daphnia magna, or water fleas are the experimental group because they received 0.5g of caffeine.
On the other hand, the control group is the group that does not receive the experimental treatment. In this experiment, POPULATION B did not receive any caffeine, hence, it is the CONTROL GROUP.
Constant or controlled variable are those variables that the experimenter must keep unchanged for all groups throughout the experiment, in order not to influence the experiment's outcome. In this experiment, the constants are: SAME TEMPERATURE, SAME AMOUNT OF FOOD, SAME TIME BEFORE CHECKING (2hrs)
Which of the following was one of the first life forms to add oxygen to the atmosphere?a. anaerobic organismsb. phototrophic organismsc. cyanobacteriad. all of the above
Answers
One of the first life forms to add oxygen to the atmosphere was: c. cyanobacteria.
Cyanobacteria, also known as blue-green algae, were one of the first life forms to add oxygen to the atmosphere through a process called photosynthesis.
Photosynthesis is the conversion of light energy into chemical energy, utilizing carbon dioxide and water to produce glucose and oxygen.
Cyanobacteria played a significant role in shaping the Earth's atmosphere by releasing oxygen as a byproduct of their photosynthetic activities.
Anaerobic organisms, which do not require oxygen for their metabolism, existed before cyanobacteria but did not contribute significantly to oxygen production.
Phototrophic organisms, which can convert light energy into chemical energy but may not necessarily release oxygen as a byproduct, also predated cyanobacteria.
It was the emergence and proliferation of cyanobacteria that marked a turning point in Earth's history, leading to the oxygenation of the atmosphere and paving the way for the development of aerobic organisms that depend on oxygen for survival.
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Read the lab safety scenario below highlight or underline the ways in which lab rules were broken
Answers
Explanation:
3 is equal 21
\(3e = 21\)
1 Write a one or two statements to explain each of these views
I .Earth is a system of systems, of which humans are a part.
Ii Energy cycles through these systems and affects changes in the composition of, but not the amount of the matter in the system.
iii. Our actions cause changes in the composition and energy content of the environment, and this changed environment can affect our lives.
iv Negative aspects of this change are distributed inequitably; the poorest are most negatively affected.
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For each of the given views, their explanations are as follows:
The first statement means that various systems are essential to the existence of the earth and humans are one of the systemsThe second statement means that energy is cycled among all the systems of the earth.The third statement means that human activities affect the flow of energy through the earth's systems.The fourth statement means that the problems caused by human activities affect mostly the poor.What are earth's systems?Earth's systems refer to all the various components of the earth that contribute to the maintenance of life on earth.
The earth's system includes the biotic and abiotic factors of the earth.
They include humans, plants, animals, water, soil, etc.
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transcription of inverted repeats produces an mrna with complementary segments. what type of secondary structure do they form through folding?
Answers
The transcription of inverted repeats produces an mRNA with complementary segments. These complementary segments form a secondary structure called a hairpin or stem-loop through folding.
Transcription is the process of copying the DNA sequence into RNA. RNA is synthesized using one of the DNA strands as a template. This process occurs in the nucleus of eukaryotic cells and in the cytoplasm of prokaryotic cells.Therefore, transcription of inverted repeats produces an mRNA with complementary segments. These complementary segments form a secondary structure called a hairpin or stem-loop through folding. The complementary segments in RNA are produced by the pairing of base pairs (A and U or G and C) in the sequence. This base pairing enables the complementary segments to form hydrogen bonds that stabilize the hairpin or stem-loop secondary structure.Inverted repeats are a set of nucleotides that are the same in the 5' to 3' direction on one strand and the complementary 5' to 3' direction on the opposite strand. The presence of inverted repeats in an mRNA sequence provides a potential site for the formation of a hairpin or stem-loop secondary structure. Therefore, during the folding of the mRNA molecule, the complementary segments interact and form a stem-loop structure.Learn more about Transcription: https://brainly.com/question/1048150
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Hypotheses, theories, and laws all explain observations about the natural world, but in different ways.
A
is a statement of fact that is generally accepted to be true and universal because it has always been observed to be true.
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Answer:
Explanation:
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Tectonic plate movement is the reason why northern California has a very different landscape than southern California. Two different tectonic plates, each moving in different directions, border the western side of the North American Plate. Use the map to identify the two tectonic plates that border the North American Plate to the west.
Answers
Answer:
here ya go
Explanation:
• The region that we know as California has been at an active plate boundary for the past 225 million years. As a result, plate tectonics has been the most important force shaping California's geologic history.
• Before about 225 million years ago, North America's western edge was much farther east than it is now.
• The area where Nevada and the eastern deserts of California are today was the west coast of North America. Most of what is now California was either part of a distant oceanic plate or did not exist.
• When Pangaea began to break up, the North American plate moved west. The continent's western edge became an active convergent plate boundary.
• A long period of subduction began, which was an important period of geologic "building" in California.
There are _____ types of RNA; each with its’ own function
Answers
Answer:
Explanation:
mRNA (messenger RNA): Produced during transcription. ...
rRNA (ribosomal RNA): Together with proteins, composes the ribosome, the organelles that are the site of protein synthesis.
tRNA (transfer RNA): Brings the correct amino acid to the ribosome during translation.
1. **How does the amount of carbon the US emits compare to other countries?
Answers
Answer:
5.1 billion metric tons of carbon is emitted by U.S as compared to other countries which emits about 32.5 billion metric tons of carbon.
Explanation:
U.S emits about 5.1 billion metric tons of carbon in the atmosphere which contribute in air pollution also helps in rising the temperature of the earth atmosphere because carbondioxide is a green house gas which increases the earth temperature. The main reason of high amount of carbon emission is the high number of industries and more fossil fuels is burnt in the engines of vehicles.
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Write a paragraph explaining the term element in your own words. Mention what elements are, why they are important, and what they have to do with geology.
Answers
Answer:
An element is a substance that cannot be broken down into any other substance. There are about 100 elements, each with its own type of atom. Everything in the universe contains the atoms of at least one or more elements. ... Non-metal elements with these properties include oxygen, hydrogen and chlorine.examples of elements are iron, copper, silver, gold, hydrogen, carbon, nitrogen, and oxygen.
Explanation:
Elements are atoms, the smallest piece that we can split matter into (except for subatomic particles and other things that we'll leave to the physicists). Different elements have different properties. Take two different elements: iron and helium. Iron is very different than helium.