Answer:
A blood vessel is severed.
Blood and blood components leak out the breaks.
Chemicals are released from the injury site and from underlying callogen.
The smooth muscle in the vessel wall contracts near the injury point, reducing blood loss.
Fibrinogen is converted to fibrin.
The platelets become activated making them spiked and sticky.
Fibrin forms a mesh that traps more platelets and erythrocytes, producing a clot.
Explanation:
Hemostasis is the process by which the body prevents and stop blood loss through bleeding.
Hemostasis occurs in three steps:
1. Vasoconstriction: Once a blood vessel is severed or cut, the smooth muscles of the blood vessels start to constrict or get narrower around the severed vessel in order to reduce blood flow through it. This vasoconstriction occurs in response to chemicals released from the cut vessel and the underlying collagen.
2. Platelet-plug formation: the platelets become activated by a glycoprotein called Von Willebrand factor (vWF), which is found in plasma and begin to clump together sticking together. This is known as primary hemostasis.
3. Clot formation: in response to platelet-plug formation, several clotting factors are activated which eventually convert fibrinogen to fibrin. Fibrin is mesh-like and holds the platelets as well as red and white blood cells in place, thereby forming blood-clots over the wound.
Would you rather burn to death or freeze to death? Hmm...
A. approach-approach conflict
B. avoidance-avoidance conflict
C. approach-avoidance conflict
D. double approach-avoidance conflict
Answer:
c
Explanation:
PLS HELP I WILL AWARD BRAINLIEST
Answer:
I would think it would be A
How does the mercalli scale differ from the richter scale
Answer:
The Richter scale measures seismic waves while the Mercalli scale measures things that humans can see and the intensity people can feel.
plzzzzzzzzzzzzzzz help
Answer:
c.
Explanation:
What will be the long-term consequences if the hunts of baby deer continue? If they stop?
Answer:
If people continue to kill baby deer then the population will start to decrease and if they stop killing them then the deer population will increase. If the deer population increase than that won't be a good thing for the environment because they will then be everywhere. Plus where there is prey there is predator so the predators of the deer will also increase in population.
Which of these contribute to the reduction in the population of harvested organisms?
a) harvesters
b) government
c) scientific research
d) all of the above
Answer:
D
Explanation:
I think I think I think I think
How one variable affects another happens in:
A. surveys.
B. case studies.
C. observations.
D. experiments.
The one variable affects another happens in experiments. Thus, option D is correct.
What is experiment?An experiment, or experimental research, is a research method in which the researcher manipulates or changes the value of one variable, (the independent variable) and measures the variable that is considered the dependent variable, in order to find how the change affects it.
The other three posible answers, observational research, survey and case study are also research methods, but the researcher can't manipulate or control any of the variables, these methods are used only to measure a specific variable.
Therefore, The one variable affects another happens in experiments. Thus, option D is correct.
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How does a destructive force differ from a constructive force?
Answer:
Destructive Forces break down features on the Earth's surface. Constructive Forces build up features on the surface of the Earth.
When are leaf and leaf-bud cutting used
Answer:
when there is a shortage of propagating material, as these cuttings can give one and perhaps two plants from each node
Explanation:
1.
Define sunshine Vitamin?
Answer:
Vitamin D is sometimes called the “sunshine vitamin” because it's produced in your skin in response to sunlight. It's a fat-soluble vitamin in a family of compounds that includes vitamins D-1, D-2, and D-3. Your body produces vitamin D naturally when it's directly exposed to sunlight.
Explanation:
Answer:
Vitamin D is called the sunshine vitamin.
Explanation:
This is because in humans, a type of vitamin D comes from sun exposure.
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Someone suffering tension headaches might achieve relief through
Answer:
biofeedback
Explanation:
Hope that helps
if a cell does not go through the s phase of the cell cycle before mitosis what might be wrong with the daughter??
Answer:
If a cell has not properly copied its chromosomes or there is damage to the DNA, the CDK will not activate the S phase cyclin and the cell will not progress to the G2 phase. The cell will remain in S phase until the chromosomes are properly copied, or the cell will undergo programmed cell death.
Explanation:
I hope it's help
Which of the following biomolecules is NOT correctly paired with its monomer (subunit)?
Answer:
I think its proteins..good luck
True or False. Crossing-over refers to the crossing over of genes in meiosis. This creates variation among organisms
Explanation:
It would be true because crossing over does happen in meiosis
Think: What is Evolution? Brainstorm some ideas.
Answer: where different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth
What is the codon-anticodon complementary base pairing system
Answer:
Anticodon
An anticodon is a trinucleotide sequence complementary to that of a corresponding codon in a messenger RNA (mRNA) sequence. An anticodon is found at one end of a transfer RNA (tRNA) molecule.
Explanation:
All the following are parts of plant and animal cells EXCEPT:
Cell wall
Nucleus
Cell membrane
Cytoplasm
Answer:
All the following are parts of plant and animal cells EXCEPT: Cell Wall
Explanation:
Both plant and animal cells have a Nucleus, Cell membrane, and Cytoplasm, but only the plant cell has a cell wall.
As the earth moves in space, it ___ on its axis
Answer:
As the earth moves in space, it ROTATES on its axis
How far away is the edge of the universe?
2. What do you call the structure of the DNA?
DNA is made up of molecules called nucleotides. ... Nucleotides are attached together to form two long strands that spiral to create a structure called a double helix. If you think of the double helix structure as a ladder, the phosphate and sugar molecules would be the sides, while the bases would be the rungs
Explanation:
This is a nucleotide. Using the diagram, identify the parts of a DNA nucleotide.
A)
A: phosphate group
B: deoxyribose
C: nitrogenous base
B)
A: phosphate group
B. ribose sugar
C: nitrogenous base
c)
A: phosphate group
B: nitrogenous base
C: deoxyribose
D)
A: phosphate group
B: nitrogenous base
C: ribose sugar
Answer:
A
Explanation: A, Gg ez this gets your question right
Why do cells need to replicate their DNA?
Answer:
Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell. ... Once the DNA in a cell is replicated, the cell can divide into two cells, each of which has an identical copy of the original DNA.
Explanation:
Cells must replicate their DNA before they can divide. This ensures that each daughter cell gets a copy of the genome, and therefore, successful inheritance of genetic traits. DNA replication is an essential process and the basic mechanism is conserved in all organisms.
Laroi
Answer:
Cells need to reduplicate their DNA because this ensures that each cell gets a copy of the genome ( inheritance of genetic traits ). DNA replication is an essential process and the basic mechanism in all organisms.
Explanation:
When one or more nucleotides are lost, this is called
Answer:
Deletion mutation
Explanation:
A deletion mutation can remove a single nucleotide, or entire sequences of nucleotides
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A yeast cell that forms a bud is called the "mother cell." Why is there no mother cell after a paramecium divides?
There is no mother cell after a paramecium divides because it is divided by binary fission and the paramecium is divided into two identical cells, called daughter cells, there is no mother cell left.
What is paramecium?Paramecium is a protist. It is oval-shaped with cilia all over the body, and it is minute and can be seen only under a microscope. It engulfs its food through the body cavity, which is its mouth.
Binary fission means when the cell is divided into two daughter cells. The division is asexual reproduction. The cell divided DNA into two copies and then each cell gets the DNA.
Thus, there is no mother cell after a paramecium divides since binary fission is used and the paramecium is split into two identical cells, known as daughter cells.
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What is the benefit of genetic variation in a population of organisms
a It increases the species' chances of survival in a changing environment
b It decreases the species' chances of survival in a changing environment
c It increases the species' chances of survival if the environment does not change
d It changes the environment to become more suitable to other organisms
Answer:
a
Explanation:
as the genetic variation increases, the species develops new adaptations for survival.
Answer:
a It increases the species' chances of survival in a changing environment.
Explanation:
Which two of the following organisms are decomposers in this food web?
1. Bolete fungus
2. Persimmon tree
3. Parasol fungus
4. Pine vole
5. Beaver
Answer:
parasol fungus is the rite answer
Auxin is the hormone is a chemical substance affect the cells growth towards light
true
false
Answer:
Explanation:
True is the correct answer
Because that is the reason they grow on the darker side
Caroline is sick with a bacterial disease. In addition to antibiotics, which of the following should be used to treat the disease? A. Vaccinations B. Increased physical activity C. Antigens and anthelmintics D. Rest and water
Answer:
D: Rest and Water
Explanation:
Sleep improves the potential ability of some of the body's immune cells to attach to their targets, according to a new study. The study helps explain how sleep can fight off an infection.
Answer:
D
Explanation:
because the water is resting and you need to rest
another name for exponential growth?
In mammals, which of the following substances is produced in a muscle that operates anaerobically?
Acetyl COA
Citrate
NADPH
Lactate
Oxygen
Answer:
The answer is D) Lactate
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