which of the following statements about blood clotting is true? the first response to an injury is dilation of the damaged blood vessels. during the clotting response, platelets rapidly congregate in the interstitial fluid. fibrin is enzymatically converted to fibrinogen. threads of fibrin form a fibrin clot.
Answers
The true statement about blood clotting is that threads of fibrin form a fibrin clot. When an injury occurs, the first response is actually constriction of the damaged blood vessels to reduce blood loss.
Platelets then aggregate and release chemicals to promote further clotting. Fibrinogen is actually enzymatically converted to fibrin during the clotting response, and it is the threads of fibrin that form the clot.
The true statement about blood clotting among the provided options is: threads of fibrin form a fibrin clot. This occurs during the coagulation process where fibrinogen, a soluble protein, is converted into insoluble fibrin strands, which help form a stable clot to prevent further bleeding.
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Related Questions
Which statement best describes how a catalyst can speed up a chemical reaction?
The catalyst decreases the activation energy needed.
The catalyst increases the concentration of products.
The catalyst binds to enzymes to release substrates.
The catalyst increases the concentration of reactants.
Answers
Explanation:
The catalyst decreases the activation energy needed.
Catalyst can speed up a chemical reaction by decreasing the activation energy needed. Thus option a is correct.
What is catalyst?Catalyst is defined as a material that allows a chemical process to happen under new circumstances or at a typically faster rate.
It can also be defined as an additive ingredient that can speed up a reaction without being consumed during the process.
There are basically four types of catalyst.
Homogenous catalystHeterogenous catalystHeterogenized homogenous catalystBiocatalystNickel, When making margarine out of palm oil, Ni is employed. In the Haber process, iron (Fe) is employed etc. are some of the example of catalyst.
Thus, catalyst can speed up a chemical reaction by decreasing the activation energy needed. Thus option a is correct.
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Which of the following is true of the Protist Kingdom? (there may be more than one answer)
-they are eukaryotic
-they can be heterotrophs
-they can be beneficial
-they are prokaryotic
-they can be autotrophs
-they can be harmful
Answers
Protist Kingdom they are eukaryotic, they can be heterotroph, can be beneficial, they can be autotrophs.
What are the characteristic features of kingdom protist?The kingdom Protista are eukaryotic organism in nature which include both unicellular and multicellular eukaryotic organisms which are the intermediate between plants and animals.
They ack differentiated vegetative tissues, except the reproductive structures, variable in shape, found in variety of places such as soil, fresh water, ocean floor, decomposing organic matter, etc.
The protists exhibit both autotrophic and heterotrophic mode of nutrition, or phagotrophic, saprobiotic or parasitic strategies.
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what level of ecology is concerned with groups of individuals of different species? group of answer choices
Answers
The level of ecology that is concerned with groups of individuals of different species is called community ecology. It is a subfield of ecology that focuses on the study of interactions between species within an ecosystem. Community ecology studies the structure, composition, and dynamics of biological communities and how they respond to changes in the environment.
Community ecology deals with the interactions among different species in a community and how they influence each other. It focuses on the factors that affect the diversity, abundance, and distribution of species in a community. The interactions among species include predation, competition, mutualism, parasitism, and commensalism.
Community ecology also examines the role of physical and chemical factors such as temperature, water availability, soil type, and nutrients in shaping the community structure.
Community ecology is concerned with both abiotic and biotic factors that affect the interactions among species. Abiotic factors refer to non-living components of the environment such as temperature, water availability, and soil type.
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Which of the following describes the perspective of
environmental determinism?
O A contemporary ecological view that human activity is affecting the global
environment toward a negative outcome
O A former scientific viewpoint stating that factors within the physical geography
of a region shape the local population's culture and behaviors
O A twentieth-century idea that human cultures are imprinted on the landscape
in different forms of land use and architecture
O A belief system based on an ideology that humans have dominion over Earth
and its natural resources
Answers
Answer:
The correct answer is "former scientific viewpoint stating that factors within the physical geography of a region shape the local population's culture and behaviors".
Explanation:
The idea of environmental determinism rise during the early part of the twentieth century, when concepts such as "culture" and "society" had not been studied the way they do today. Environmental determinism states that the geographical and physical conditions of a region defines human society, including its economics and cultural features. Nowadays, environmental determinism is considered a simplistic way of studying humans, since it implies that social conditions have no impact on human's development.
A researcher collected a single-celled organism from birdbath water and grew the organism in a laboratory. The researcher observed the organism reproducing by cell division, which resulted in identical offspring generations. This organism exhibits a form of
Answers
Answer: The organisms exhibit a form of Asexual reproduction.
Explanation:
This is a form of asexual reproduction because Asexual reproduction is a form of reproduction where a single celled organisms or muiticellular organisms produce or divide to produce offsprings that are genetically identical without fusion of gametes and exchange of genetic materials.
This type of reproduction includes binary fission( where an organism divides into two), fragmentation( where an organism divides into fragments), budding, spore formation e.t.c.
6. clostridium, a known obligate anaerobe, does not grow in the gaspak jar. what might be the reason for this lack of growth?
Answers
The reason for the lack of growth of Clostridium, an obligate anaerobe, in the gaspak jar could be the absence of the necessary anaerobic conditions required for its growth.
Clostridium species are known as obligate anaerobes, meaning they require an oxygen-free environment for growth. The gaspak jar is designed to create an anaerobic atmosphere by removing oxygen and replacing it with a mixture of hydrogen and carbon dioxide. However, if Clostridium is not growing in the gaspak jar, it suggests that the anaerobic conditions inside the jar are not adequately maintained.
There are several possible reasons for the lack of growth. It could be due to a failure in the gaspak system, such as insufficient removal of oxygen or inadequate generation of the necessary anaerobic gases. Another possibility is the presence of oxygen leaks in the jar, which can compromise the anaerobic environment. Additionally, the culture media or other components used may not be suitable for the growth of Clostridium.
To ensure proper growth of Clostridium, it is important to carefully check and optimize the gaspak system, monitor for oxygen leaks, and use appropriate culture media and conditions that support the anaerobic requirements of the organism.
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what makes up the genetic code in the dna molecule?
Answers
Nucleotide bases makes up the genetic code in the DNA molecule.
The creation of particular amino acids is coded for by a series of nucleotide bases in DNA and RNA, which make up the genetic code. Proteins are created by the fusion of amino acids. Codons are triplet groupings of nucleotide bases that identify particular amino acids and are read as the code.
A codon is a group of three continuous nucleotide bases that codes for an amino acid or marks the start or stop of protein production. The instructions for producing amino acids are provided by these triplet sets. Proteins are created by the fusion of amino acids. Specific amino acids are designated by RNA codons. The amino acid that will be generated depends on the arrangement of the bases in the codon sequence.
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List statements from the reading passage that seem to indicate that watson and crick reached conclusions based on speculation rather than experimental evidence.
Answers
Watson and Crick had shown that in DNA, form is function: the double-stranded molecule could both produce exact copies of itself and carry genetic instructions.
The DNA model put out by Watson and Crick is explained by the following points:
1. Right-handed coiling of the polynucleotide chains that make up DNA's double helix creates the structure.
2. The two strands are in opposition to one another. In one stand, the polarity is 5'-3', whereas in the other, it is 3' to 5'.
3. The polynucleotide strands' backbone is made up of the deoxyribose sugar and the phosphate group that is connected to it.
4. The inner core is made up of nitrogenous bases that are joined to deoxyribose sugar by glucosidic linkages.
5. In accordance with their complimentary nature, the nitrogenous bases of the two strands create hydrogen bonds, with adenine forming two H-bonds with thymine and guanine forming three H-bonds with cytosine.
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what happens when light hits a mirror
Answers
Answer:
pretty sure it reflects the light back
Explanation:
Please answer fast!
worth 100 points
Answers
Answer:
self feeder; E from sun or chemicals - autotrophs
has a nucleus & membrane-bound organelles - eukaryote (5)
the smallest taxonomic division - species (4)
no nucleus or membrane bound organelles - prokaryote (6)
one organism living inside another, both benefit - mutualism
two term - binomial (1)
Explanation:
The lungs contain all of the
that move oxygen into the blood.
The
allow(s) the muscles in the chest to expand and contract the lungs.
A damaged lung may not be able to move fresh air into the body; this would cause a decrease in the
amount of
in the body.
A damaged lung may be unable to remove used air; this would cause an increase in the amount of
in the body.
DONE
Answers
Answer:The answer is C:)
Answer:
ITS A C B C
Explanation:
im right so... God i hate
How can environmental changes itnpact
natural selection and adaptations?
Answers
Answer:
Variation within a population makes it possible for a population to evolve over time in response to changing environmental conditions. Natural selection/survival of the fittest occurs when more offspring are produced than the environment can sustain.
Explanation:
A recipe for a cake calls for both liquid and dry ingredients. If you are following the recipe, how will the order in which you add the ingredients affect the mass of the batter?(1 point) It will have no effect because the order in which ingredients are mixed will not change the fact that matter cannot be created nor destroyed. It will have no effect because the order in which ingredients are mixed will not change the fact that matter cannot be created nor destroyed. If you add the liquid ingredients first, the final result will have less mass than if you added the dry ingredients first. This is because the dry ingredients will dissolve in the liquid ingredients. If you add the liquid ingredients first, the final result will have less mass than if you added the dry ingredients first. This is because the dry ingredients will dissolve in the liquid ingredients. If you add the dry ingredients first, the final result will have less mass than if you added the liquid ingredients first. This is because the dry ingredients will be dissolved by the liquid ingredients. If you add the dry ingredients first, the final result will have less mass than if you added the liquid ingredients first. This is because the dry ingredients will be dissolved by the liquid ingredients. It will have no effect because the order in which ingredients are mixed will not change the fact that the mass of the batter will be greater than the masses of the ingredients. It will have no effect because the order in which ingredients are mixed will not change the fact that the mass of the batter will be greater than the masses of the ingredients.
Answers
It will have no effect because the order in which ingredients are mixed will not change the fact that matter cannot be created nor destroyed.
Effect occurs on massThe order in which we add the ingredients do not affect the mass of the batter because the order in which ingredients are mixed will not change the fact that matter cannot be created nor destroyed.
The mass of the batter remains the same due to the incorporation of same quantity of ingredients so we can conclude that option A is the right answer for this question.
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Answer:It will have no effect because the order in which ingredients are mixed will not change the fact that matter cannot be created nor destroyed.
Effect occurs on mass
The order in which we add the ingredients do not affect the mass of the batter because the order in which ingredients are mixed will not change the fact that matter cannot be created nor destroyed.
The mass of the batter remains the same due to the incorporation of same quantity of ingredients so we can conclude that option A is the right answer for this question.
Explanation: 100% mark brainlist
Define Metabolism.. !
Answers
Answer:
Metabolisms are the chemical processes that occur within a living organism in order to maintain life
Explanation:
which is the answer ?
Answers
D is ur answer Explanation is because its crossed with both which means its 50/100 for both tall and short and that would make a hybrid and that hybrid would be a medium plant btw
list examples of renewable and nonrenewable resources
Answers
Answer:
Resource Types
Renewable resources include timber, wind, and solar while nonrenewable resources include coal and natural gas.
Explanation:
how does an electromagnet help in our daily life
Answers
Study the cladogram.
Which two organisms are the most closely related?
A:lamprey and gorilla
B:salamander and lizard
C:tiger and shark
D:lizard and lamprey
Answers
Answer:
B. Salamander and Lizard
Explanation:
Answer:
B
Explanation:
Which type of muscle is found in the digestive system
Answers
Answer:
the smooth muscle. hope that helps :)
Describe 2 chemical conversions that are part of nitrification
Answers
Explanation:
NH3+1.5O2 GIVES NO2- + H+ + H2O
having no natural protection against bad weather is called ?
Answers
Answer:
tornadoes and severe storms and where to find disaster-related resources
Explanation: Damage caused by flooding, earthquakes and hurricanes is generally not covered by your regular home owner's policy, but can be purchased separately.
Which of the following is NOT a cause of hearing loss?
Answers
Answer:
honestly they can all cause hearing loss.
The earwax is not a cause of hearing loss.
So, first option is correct one.
Is earwax causes hearing loss?Earwax is a substance in your ear canal that keeps out debris and bacteria. Since, earwax is designed to help ear to keep from getting infected. It can cause problem by irritating your ears and it preventing you from hearing well. Earwax is also know as Cerumen . So, earwax use to hearing well not for loss of hear.
Some chemical like pesticides , solvents , and pharmaceuticals that contains ototoxicants have negatively effects on functioning of ear and cause hearing loss.
Any type of damage to the inner ear cause hearing loss of ear.
The ruptured eardrum which is tympanic membrane perforation.
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The posterior pituitary is not really an endocrine gland. Why not? What is it?
Solution
Answers
The posterior pituitary is not considered a true endocrine gland because it does not produce hormones itself, but rather stores and releases hormones produced by the hypothalamus.
The posterior pituitary, also known as the neurohypophysis, is a part of the pituitary gland located at the base of the brain.
While the anterior pituitary is an endocrine gland that synthesizes and releases its own hormones directly into the bloodstream, the posterior pituitary has a different function.
The posterior pituitary does not produce hormones itself. Instead, it acts as a storage and release site for hormones produced by the hypothalamus, a region of the brain.
The hypothalamus produces two hormones: oxytocin and antidiuretic hormone (ADH), also known as vasopressin. These hormones are transported along nerve fibers from the hypothalamus to the posterior pituitary, where they are stored.
When signals from the hypothalamus trigger their release, the hormones are then released into the bloodstream by the posterior pituitary. From there, they act on their target tissues and exert their effects.
Therefore, the posterior pituitary is considered a neurohypophysis rather than a true endocrine gland because it does not produce hormones itself but acts as a storage and release site for hormones produced by the hypothalamus.
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all my points plz help Match the Macromolecule with its corresponding monomer. Carbohydrate Lipid Il Protein Nucleic Acid :: Glucose :: Fatty Acid * Amino Acid :: Nucleotide
Answers
Answer:
Carbohydrate: glucose
Lipid: Fatty Acids
Proteins: Amino Acids
Nucleic Acids: Nucleotides
The correct macromolecules 1, 2, 3 and4 with its corresponding monomers are B, C, D and A respectively.
Carbon, hydrogen and oxygen atoms make up chemical molecules called carbohydrates. The simple sugar glucose serves as the monomer of the carbohydrate.
Fats, oils, phospholipids, and steroids are just a few of the various macromolecules that make up the class of lipids. Fatty acids are the basic unit of lipids.
Complex macromolecules called proteins are in charge of many essential cellular processes. An amino acid is the monomer of a protein. Organic substances known as amino acids have two chemical groups: an amino group \(\rm (-NH_2)\) and a carboxyl group (-COOH).
In living things, polymers called nucleic acids store and transfer genetic information. A nucleotide, which is the monomer of nucleic acids, is composed of three elements: a nitrogenous base (adenine, thymine, cytosine, and guanine in DNA; adenine, uracil, cytosine, and guanine in RNA), a phosphate group, and a sugar molecule (RNA). ribose in or deoxyribose in DNA).
Therefore, the correct macromolecules 1, 2, 3 and4 with its corresponding monomers are B, C, D and A respectively.
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Your question is inappropriate, the proper question is:
Match the Macromolecule with its corresponding monomer.
1. Carbohydrate A. Nucleotide
2. Lipid B. Glucose
3. Protein C. Fatty Acid
4. Nucleic Acid D. Amino Acid
A company packages facial tissues into cube-shaped tissue boxes. Which units are most appropriate for measuring the side lengths of the boxes?.
Answers
The units that are most appropriate for measuring the side
of the boxes are meters.
The area of a cubeThe cube is made up of 6 square faces, 8 vertices and 12 edges. This means that to calculate the area of the cube, the area of a side is determined and then times by 6.
Area of a cube= (length×width) × 6
The length of an object and the distance between two objects are measured in meters and it is an internationally accepted method.
Therefore, the units that are most appropriate for measuring the side lengths of the boxes are meters.
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in an alligator, the integumentary system includes scales, fat, and claws. an organ such as the skin is composed of
Answers
in an alligator, the integumentary system includes scales, fat, and claws. an organ like
What is an alligator's body like?Its color is greenish, almost brown, with a yellowish belly, a broad and flat snout, and it can measure up to 3 meters in length. Alligators are nocturnal animals and during the day they form groups to sunbathe. It feeds on fish, birds and mammals.
With this information, we can conclude that Alligators are large reptiles and members of the order Crocodylia. The two existing species of alligators and the many worldwide species of crocodiles are closely related, and people often confuse one with the other. An alligator is distinguished by its wide, rounded snout and black color.
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Which of the following statement(s) about the digestive system is (are) correct? SELECT ALL THAT APPLY: O Vitamin K promotes blood clotting, and it is synthesized by bacteria in the large intestíne. O Lactose intolerance means that a person is allergic to lactose. O Peristalsis and segmentation result from contractions of the smooth muscle of the muscularis externa. O Chylomicrons are absorbed by lacteals.
Answers
The statement(s) about the digestive system is (are) correct are a, c and d are correct.
Regarding the digestive system, the following is accurate:
Vitamin K is produced by microorganisms in the large intestine and aids in blood clotting. The liver's ability to produce clotting factors depends on vitamin K.
The muscularis external's smooth muscle contracts to cause peristalsis and segmentation. Food is moved along the digestive tract by smooth muscles coordinately contracting and relaxing. Lacteals are capable of absorbing chylomicrons.
Large lipid droplets called chylomicrons are produced in the small intestine when dietary fats are absorbed. Since these chylomicrons are too big to pass through blood capillaries directly, they are instead absorbed into lacteal-shaped lymphatic channels.
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Complete question
Which of the following statement(s) about the digestive system is (are) correct? SELECT ALL THAT APPLY:
a. Vitamin K promotes blood clotting, and it is synthesized by bacteria in the large intestine.
b. Lactose intolerance means that a person is allergic to lactose.
c. Peristalsis and segmentation result from contractions of the smooth muscle of the muscularis externa.
d. Chylomicrons are absorbed by lacteals.
The principle force holding the subunits of an oligomeric protein to each other are ________
Answers
The principle force holding the subunits of an oligomeric protein to each other are noncovalent interactions.
Oligomeric proteins are made up of multiple subunits that come together to form a functional protein complex. These subunits are held together by different types of noncovalent interactions, including hydrogen bonds, van der Waals forces, and hydrophobic interactions. These forces are weaker than covalent bonds but are crucial for maintaining the stability and structure of the protein complex.
The specific arrangement and interactions between the subunits determine the overall function and properties of the oligomeric protein. In summary, noncovalent interactions play a vital role in the assembly and stability of oligomeric proteins.
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How did the ancestors of NWMs get to South America from their genetic ancestral "home" in Africa?
a) By crossing a land bridge between continents
b) Through a series of migrations by sea
c) By following migratory patterns of their prey
d) Through human intervention and transportation
Answers
The ancestors of NWMs (New World monkeys) got to South America from their genetic ancestral "home" in Africa through the following means: By crossing a land bridge between continents.Option (a) is correct.
What are New World Monkeys?New World monkeys are native to Central and South America, and are characterized by their flattened noses, prehensile tails, and a broad range of physical sizes. They are very much distinct from Old World monkeys, who are native to Africa and Asia.What was the significance of the land bridge between South America and Africa?
A land bridge that connected South America and Africa existed around 30-40 million years ago. The animals, including primates, were free to migrate back and forth between the two continents, and this migration route may have been used by New World monkeys' ancestors to travel to South America and colonize it.Thus, the ancestors of NWMs got to South America from their genetic ancestral "home" in Africa by crossing a land bridge between continents.
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Describe the movement of water if cells are in a hypertonic solution, hypotonic solution, and isotonic solution.
Why?
Answers
Water molecules move outside the cell in a hypertonic solution causing it to shrink
Water molecules in an isotonic solution does not move inside or outside the cell and the cell’s volume will remain stable