The atomic number of carbon is six, which means that a carbon atom has six protons. Carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. Which of these statements are true about carbon and its isotopes? Select all that apply.
A. All carbon atoms have six neutrons.
B. All carbon atoms have six protons and six electrons.
C. Atoms of all carbon isotopes have either more than 6 electrons or fewer than 6 electrons.
D. Atoms of some naturally occurring carbon isotopes may have six neutrons.
E. Atoms of some naturally occurring carbon isotopes may have twelve neutrons.
Answers
Answer:
B and D
Explanation:
Since it says all carbon atoms have six electrons, we know that they only have six protons too. The carbon 13 and 14 means they have extra neutrons that increases their atomic mass.
Answer:
the answer is b and d
Explanation:
Related Questions
kin 110 vitamins are _________ and are important for energy production and catalyzing metabolic reaction.
Answers
Kin 110 vitamins are essential micronutrients that play a vital role in energy production and catalyzing metabolic reactions.
Kin 110 vitamins, also known as KIN vitamins, refer to a group of essential micronutrients that are necessary for maintaining overall health and well-being. These vitamins are classified as water-soluble vitamins, including vitamin B complex and vitamin C. The main answer highlights that KIN 110 vitamins are important for energy production and catalyzing metabolic reactions, emphasizing their significance in the body's physiological processes.KIN 110 vitamins are crucial for energy production as they serve as coenzymes or co-factors in the metabolic pathways that convert carbohydrates, fats, and proteins into usable energy. Specifically, the B vitamins, such as thiamine (B1), riboflavin (B2), niacin (B3), pantothenic acid (B5), pyridoxine (B6), biotin (B7), folate (B9), and cobalamin (B12), are involved in various enzymatic reactions that facilitate energy production. These vitamins participate in the breakdown of macronutrients and the synthesis of adenosine triphosphate (ATP), the body's primary energy currency.
Furthermore, KIN 110 vitamins also act as coenzymes in catalyzing metabolic reactions. Enzymes are proteins that facilitate biochemical reactions in the body. KIN 110 vitamins encompass a range of water-soluble vitamins, including the B vitamins (B1, B2, B3, B5, B6, B7, B9, and B12) and vitamin C. These vitamins are essential for energy metabolism and serve as coenzymes or co-factors in numerous enzymatic reactions. They play a crucial role in converting macronutrients into energy and facilitating various metabolic processes in the body.
In conclusion, KIN 110 vitamins are indispensable for energy production and catalyzing metabolic reactions in the body. Their role as coenzymes in various enzymatic processes ensures the efficient utilization of nutrients and the maintenance of overall health and vitality.
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What are the environmental issues with using coal as a source of energy?
Answers
Using coal as a source of energy can come with some environmental issues. And it involves other chemicals, which are sulfur dioxide and nitrogen oxide.
Sulfur dioxide contributes to acid rain and respiratory illnesses. Nitrogen oxide contributes to smog and respiratory illnesses. And particulates contribute to smog, haze, and respiratory illnesses and lung disease.
what dose the solar cycle mean?
Answers
Answer:
The Sun's South and North poles begin to flip.
Explanation:
It takes about every 11 years for the sun to flip it's north and south poles. That's what the word Solar Cycle means.
Answer: The solar cycle is the cycle that the Sun’s magnetic field goes through approximately every 11 years.
Explanation:
Determine which of the following characteristics are environmental, not inherited. I. Weight II. Blood group III. Language spoken IV. Eye color A. II & IV B. I & III only C. I & II D. I, II, III
Answers
Answer:
Weight and blood group
Explanation:
Students of different ages were given the same jigsaw puzzle to put together. They were timed to see how long it took to finish the puzzle. List the Independant, Dependant and Control variable (constant
Answers
Answer:
independent- the students
dependent- the time
constant- the jigsaw puzzle
Explanation:
The_______ harness light energy and convert it into chemical energy. The ______ convert fuel particles into usable energy for the cell.
Answers
First one is chlorophyll, second one is mitochondria.
Choose two options.
In an atomic power plant, where does the generator get its energy to operate?
1. directly from the reactor
2. from mechanical energy
3. from the steam turbine
4. from the electric power lines
5. from solar power
Answers
The generator get its energy from the steam turbine for the atomic power plant to operate.
What is atomic power plant and where does it get its energy from?Atomic power plant is a power plant which provides power supply and uses a lot of assets and chemical substances for operation.Atomic power plant uses the water core at the bottom level of the plant which is heated during the process.In the atomic power plant occurs a lot of nuclear fission which releases a lot of heat and then pumped into tubes insid a heat exchanger.The objective of atomic plants used to be to produce atomic energy from such large mass.And converting the atomic energy into usable power for the use.To know more about atomic power plant visit:
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what is the significance of the observation that many signal transduction pathways create a network where they intersect or overlap?
Answers
Different signals can produce conflicting or complementary information. Instead of reacting to each signal separately, crosstalk across signaling pathways enables cells to combine information.
What are some examples of signal transduction pathways?Although there are some commonalities between the various receptor types and their second messengers, they can also differ greatly from one another. Hormones, eyesight, and touch are a few instances of signal transduction pathways. The four main classes of signal-transducing receptors are as follows: Receptors that can cross the plasma membrane and are either intrinsically or indirectly related with enzymes (Enzyme-linked Receptors) Receptors that are connected to G proteins inside of the cell
Which two primary signal transduction systems are there?The synthesis of second messengers and the phosphorylation of receptors are the 2 methods of signal transduction covered in this chapter. Most signaling includes a GTP-binding protein being activated by a receptor (G protein).
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Is the Sour Patch cereal a healthy option for all people? Explain your answer. What other options could be used if this cereal is not a healthy option?
Answers
a drosophila male from a true-breeding stock with scabrous eyes (se) is mated with a female from a true-breeding stock with javelin bristles (jb). both scabrous eyes and javelin bristles are autosomal recessive mutant traits. the f1 progeny from these parents all had normal eyes and bristles. f1 females were then mated with males that had both scabrous eyes and javelin bristles. the numbers and phenotypes of the f2 progeny are:
Answers
The F2 offspring had a phenotypic ratio of 9:3:3:1 because there was an independent assortment of two traits in the dihybrid cross.
The F2 generation produced by the mating between F1 females and males with both traits, scabrous eyes, and javelin bristles, are as follows. The genotype of F1 females and males are se+ jb+/+ and se jb/se jb, respectively. The phenotype of the F2 progeny is the following:
9/16 (56.25%) normal eyes and bristles (se+ jb+/+),
3/16 (18.75%) scabrous eyes only (se se jb+/+),
3/16 (18.75%) javelin bristles only (se+ jb), and 1/16 (6.25%)
both scabrous eyes and javelin bristles (se se jb).
The expected phenotypic ratio from a dihybrid cross,
se se jb x se+ se+ jb+ jb+, is 9/16 for normal eyes and bristles,
3/16 for scabrous eyes only, 3/16 for javelin bristles only, and
1/16 both scabrous eyes and javelin bristles (9:3:3:1).
This is an example of a dihybrid cross. Both traits, scabrous eyes, and javelin bristles are autosomal recessive mutants. F1 offspring had normal eyes and bristles because they had at least one dominant allele from both parents.
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A trace fossil can determine the ______________ of an organism.
color
species
embryo
behavior
Answers
Down syndrome is a common genetic disorder that is caused by having an extra copy of chromosome 21. Which method will show whether or not a baby has down syndrome?
a. Karyotype
b. Family history
c. Genetic survey
d. Punnett square
Answers
Answer:
a. Karyotype
Explanation:
Karyotypes describe the chromosome count of an organism, so all the chromosomes would be in front of you, and it'd be easy to tell if there are 2 or 3 chromosome 21.
Hydrogen bonding is a type of force that occurs inside of molecules.
A. False
B. True
Answers
Answer:
\(\Huge \boxed{\textbf{B. True}}}\)
Explanation:
Hydrogen bonding plays an important role inside many molecules. It occurs due to an electrostatic attraction between a hydrogen atom bonded to an electronegative element like oxygen or nitrogen, and another nearby electronegative atom that possesses a lone pair of electrons. This second atom acts as an acceptor for the hydrogen.
The hydrogen is pulled slightly toward the acceptor due to their opposing charges. These hydrogen bonds can form both between different molecules as well as within different parts of the same molecule.
They are stronger than the normal attractions between permanently polarised molecules or non-polar atoms. However, hydrogen bonds are not as intensely strong as true covalent bonds, which involve sharing electrons, or ionic bonds that transfer electrons.
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i need help plis!!!!!!!!!!!!!!!!!!!!!!
Answers
Describe the different morphological types of viruses and give examples of each type:
a. Helical
b. Icosahedral
c. Complex
2. Compare and contrast the multiplication of bacteriophages versus the multiplication of animal viruses:
3. Describe how arthropods can act as mechanical vectors and biological vectors:
4. Describe five (5) characteristics of fungi and how they differ from othermicroorganisms: 5. Describe common characteristic of protozoans (protists). Name three (3) protozoans that are human parasites:
6. What are helminths? Name and describe three (3) that can cause problems in humans
Answers
Bacteriophages multiply within bacterial cells through the lytic or lysogenic cycle, while animal viruses typically use the steps of attachment, penetration, uncoating, replication, assembly, and release.
Helical viruses have a coiled or spiral-shaped capsid, such as the tobacco mosaic virus. Icosahedral viruses have a symmetrical icosahedral-shaped capsid, like the adenovirus. Complex viruses have a combination of both helical and icosahedral components, such as bacteriophages.
Bacteriophages multiply within bacterial cells through the lytic or lysogenic cycle, while animal viruses typically use the steps of attachment, penetration, uncoating, replication, assembly, and release.
Arthropods can act as mechanical vectors by carrying pathogens on their bodies or in their mouthparts, transmitting them to humans through physical contact. They can also act as biological vectors by harboring and transmitting pathogens within their bodies, such as mosquitoes transmitting malaria parasites.
Fungi are eukaryotic organisms characterized by their filamentous structure (hyphae) and reproduction through spores. They differ from other microorganisms in their mode of nutrition (absorptive), cell wall composition (chitin), mode of reproduction (asexual and sexual), growth at low pH, and preference for organic substrates.
Protozoans are single-celled eukaryotic organisms classified under the kingdom Protista. They exhibit characteristics such as being unicellular, heterotrophic, motile (using cilia, flagella, or pseudopods), and capable of reproduction through binary fission or sexual processes. Examples of human parasites include Plasmodium (causing malaria), Giardia lamblia (causing giardiasis), and Trichomonas vaginalis (causing trichomoniasis).
Helminths are parasitic worms that infect humans. Three examples of helminths that can cause problems in humans are Ascaris lumbricoides (roundworm), Taenia solium (pork tapeworm), and Schistosoma mansoni (blood fluke). These helminths can cause diseases such as ascariasis, taeniasis/cysticercosis, and schistosomiasis, respectively. They have complex life cycles involving different developmental stages and can infect various organs or systems in the human body.
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Please help me quickly ill give brainlest
Answers
Answer:
kinda blurry so I hope I answered everything correctly!
A. The Linear equation would be x + y = 50
B. Ted spends 35 minutes practicing the breaststroke every day.
Ted spends 50 minutes every day swimming so x +y = 50 (let us say x is butterfly stroke and y is breaststroke). Since he practices the breaststroke for 20 more minutes than the butterfly stroke we have:
2x + 20 = 50
2x = 50 - 20
2x = 30
x =30 / 2
x = 15
y = 15 + 20 =35 minutes
C. No, it is not possible for Ted to have spent 45 minutes practicing the butterfly stroke every day because of the time constraint.
1. Most of the oxygen we breathe today is thought to have come from the photosynthesis of anaerobic organisms.
a. Write a balanced chemical formula for the production of oxygen by photosynthesis.
b. Oxygen is toxic to anaerobic organisms. After all, it was a waste product of the process of "food" consumption by anaerobic organisms. Like any organism forced to exist in an environment dominated by its own waste, it will die off or find another habitat. So are anaerobic organisms extinct? No! They are alive and well but not roaming the oxygen rich environment of the earth’s surface. List at least three anaerobic organisms and the conditions/habitats in which they continue to exist.
Answers
a. The balanced chemical formula for the production of oxygen by photosynthesis is:
6CO2 + 6H2O + energy (from sunlight) → C6H12O6 + 6O2
This formula shows that six molecules of carbon dioxide (CO2) and six molecules of water (H2O) are used to produce one molecule of glucose (C6H12O6) and six molecules of oxygen (O2).
b. Anaerobic organisms are still alive and well in environments that lack oxygen. Here are three examples:
1. Methanogens - These are microorganisms that produce methane gas as a waste product of their metabolism. They are commonly found in anaerobic environments such as swamps, wetlands, and the digestive tracts of animals.
2. Halophiles - These are salt-loving bacteria that thrive in extremely salty environments such as salt flats, salt lakes, and salt marshes. They are able to survive in these harsh conditions because they have adapted to the high salt concentration.
3. Thermophiles - These are heat-loving bacteria that are able to survive and grow in very hot environments such as geothermal springs, volcanic vents, and deep-sea hydrothermal vents. They are able to withstand extreme temperatures because they have special enzymes and proteins that are stable at high temperatures.
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Some say habilines were mainly hunters and Homo erectus was primarily a scavenger. True False
Answers
The given statement, Some say habilines were mainly hunters and Homo erectus was primarily a scavenger is False because The habilines, also known as Australopithecus habilis, were a species of hominids that lived approximately 2.3 to 1.4 million years ago in Africa.
Homo erectus, on the other hand, is a later hominid species that lived from approximately 1.8 million to 100,000 years ago in Asia and Africa. There is no concrete evidence that indicates that habilines were mainly hunters, and it's unlikely that they had the physical and mental capabilities required to hunt effectively.
They were most likely scavengers who fed on the remains of dead animals. Homo erectus, on the other hand, was a versatile species that had the physical and mental abilities to hunt and gather food. They were excellent hunters who utilized their hunting skills to capture large animals and gather meat for their communities. So, it's incorrect to say that Homo erectus was primarily a scavenger.
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The stars appear to move across the sky every day, but
their paths change throughout the year. Here is a model of
the Sun-Earth system.
Based on the model, which three factors might cause this change in the
apparent movements of the stars?
Answers
Answer:
Earth's Revolution around the sun, The tilt of Earth's Axis, and Earth's rotation on its axis.
Explanation:
I have done this test
1. The Earth's revolution around the Sun: As the Earth revolves around the Sun, the stars appear to move across the sky each day. This is because the Earth is rotating on its axis, which causes the stars to appear to be moving from east to west.
2. The Earth's tilt: The tilt of the Earth's axis also has an effect on the apparent movement of the stars. As the Earth rotates around the Sun, the tilt of the Earth's axis changes throughout the year. This causes the stars to appear to move slightly differently at different times of the year.
3. The Precession of the Equinoxes: The precession of the equinoxes is the gradual wobble of the Earth's axis which takes place over thousands of years. This has an effect on the apparent movement of the stars, as the angle of the Earth's axis changes over time. This causes the stars to appear to move in a slightly different pattern than they did thousands of years ago.
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Richard Pyle turned to Bill Stone when he wanted to learn more about rebreathers and other diving technology.
OA. True
OB. False
Answers
Answer:
True
Explanation:
How is respiration and combustion similar
A. Both produce water and oxygen
B. Both produce fuel and oxygen
C. Both use carbon dioxide and water to produce fuel
D. Both use oxygen and fuel to produce carbon dioxide and water
Answers
Answer:
Both Respiration and Burning uses oxygen. Both Respiration and Burning produces energy. Both Respiration and Burning gives out carbon dioxide as the end product. The overall chemical reactions of both Respiration and Burning are the same.
Answer:
D
Explanation:
Both Respiration and Burning uses oxygen. Both Respiration and Burning produces energy. Both Respiration and Burning gives out carbon dioxide as the end product. The overall chemical reactions of both Respiration and Burning are the same.
Part A - Carbon bonding Which molecules show an appropriate number of bonds around each carbon atom? Select the three that apply: H_ 8 C-H H-C-C-C-0-H X8Lo_h Submit Hints My_ Answers Give Up Review Part
Answers
Due to the fact that carbon possesses four such sharable electrons on its own, it frequently forms four bonds with other atoms. \
Carbon is the fourth most prevalent element in the universe by mass, following hydrogen, helium, and oxygen, and the fifteenth most plentiful element in the crust of the Earth. Because of its abundance, distinctive variety of organic compounds, and exceptional capacity to form polymers at Earth's typical temperatures, carbon serves as the building block for all known life. In terms of mass, it is second only to oxygen in terms of abundance in the human body (approximately 18.5%).
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What process in the nitrogen cycle converts nitrogen back into its gaseous state?.
Answers
Denitrification is the process by which nitrogen is converted back into its gaseous state in the nitrogen cycle.
Denitrification is the process of converting nitrate to nitrogen gas, which removes bioavailable nitrogen from the environment and returns it to the atmosphere. Denitrification is the process by which nitrate (NO3-) is converted back to gaseous nitrogen to complete the nitrogen cycle (N2). The agents of this process are denitrifying bacteria. These bacteria obtain energy from nitrate rather than oxygen, releasing nitrogen gas into the atmosphere. When organisms expel waste or die and are decomposed by bacteria and fungi, nitrogen returns to the soil. Bacteria generate energy by breaking down nitrate and nitrite into nitrogen gas, which is then released back into the atmosphere.
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describe hooke's contribution to the history of the cell .
Answers
Answer:
of the law of elasticity (Hooke's law), for his first use of the word cell in the sense of a basic unit of organisms (describing the microscopic cavities in cork), and for his studies of microscopic fossils
Explanation:
100 POINTS ASAP- hardy Weinberg problem, please solve for all of the frequency's!
Answers
Answer:
q^2 = 0.0025
q ≈ 0.05
p ≈ 0.95
p^2 ≈ 0.9025
2pq ≈ 0.095
Explanation:
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_____ development involves growth and changes in the body and brain, the senses, motor skills, and health and wellness. group of answer choices cognitive learning physical psychosocial
Answers
Physical development involves growth and changes in the body and brain, the senses, motor skills, and health and wellness. group of answer choices cognitive learning physical psychosocial.
What are different types of development?
Cognitive development
Cognitive development relates to a child's ability to think, inquire, and solve problems. The acquisition of information, skills, problem-solving abilities, and attitudes helps children consider and grasp their surroundings.
Learning development
Learning development is the process of collaborating with students and faculty to develop academic practices, with a focus on assisting students in developing academic practices in higher education that assess how well knowledge is retained through the use of structural techniques.
Physical development
Physical development is the expansion and maturation of the body and brain during early childhood and adolescence. The development of muscle control and physical coordination is a component of physical development, which involves the growth and development of both the brain and the body.
Psychosocial development
The phrase psychosocial development refers to the process through which a person's personality evolves over childhood and maturity, as well as the acquisition of social skills.
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The amount of energy transferred from the phytoplankton to the
zooplankton is shown to be 6,000 kJ/m?. Determine the amount of energy that will end up as biomass in the body of the large fish.
Answers
The large fish is a tertiary consumer. Therefore, the amount of energy that will end up as biomass in the body of a large fish is 60 kJ/m.
Zooplankton is a primary consumer. The transfer of energy between trophic levels is typically not 100% efficient due to factors such as metabolic processes, heat loss, and incomplete digestion.
The efficiency can vary depending on various factors, including the species involved, environmental conditions, and the overall ecosystem dynamics. Only a fraction of the energy available at one trophic level is transferred to the next trophic level as biomass.
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What is cleisthenes in 2000 BCE - Ancient Greece
Answers
Answer:
Cleisthenes Greek was an ancient Athenian lawgiver credited with reforming the constitution of ancient Athens and setting it on a democratic footing in 508 BC.
Explanation:i dont have one
Whale primary functions
Answers
The primary functions of whales include feeding, reproduction, communication, and migration.
Whales are primarily filter feeders or predators, depending on the species.
Filter-feeding whales, such as baleen whales, have baleen plates in their mouths that allow them to filter out small prey, such as krill or small fish, from large volumes of water.
Predatory whales, such as toothed whales, hunt and feed on various marine organisms, including fish, squid, and marine mammals.
Reproduction is another important function for whales. Most whale species have a gestation period of several months, with females giving birth to a single calf.
The calves are nursed with milk from their mothers and rely on their care for a period of time until they become independent.
Communication is vital for whales, as they rely on vocalizations to communicate with other members of their pod.
Whales produce a variety of sounds, including songs, clicks, and whistles, which serve purposes such as mating, social interactions, and navigation.
Migration is a common behavior observed in many whale species. Whales undertake long-distance migrations, often covering thousands of kilometers, to reach feeding grounds in nutrient-rich waters or to reproduce in specific breeding areas.
These migrations are driven by seasonal changes in food availability and environmental conditions.
In summary, the primary functions of whales encompass feeding, reproduction, communication, and migration, all of which are essential for their survival and successful adaptation to their marine environments.
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Describe what happened. When was there more potential energy in the system? when was there more kinetic energy in the system?.
Answers
Potential lnergy increases when charges move in the opposite direction of electric force. If kinetic energy increases, potential energy decreases.
Potential energy is the energy an object has due to its position relative to other objects, voltages within it, its electric charge, or other factors. There are two types of potential energy, and they are: gravitational potential energy, elastic potential energy. Kinetic energy is the form of energy an object or particle has for its motion, equal to half the mass of the body times the square of its velocity. The temperature of an object is directly related to its kinetic energy.
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