Answer:
a blood clot is a gelatinous mass of fibrin and blood cells formed by the coagulation of blood
Explanation:
Answer:
Blood ClotThe process of forming a clot or thrombus in order to prevent excess loss of blood from the body is called the clotting of blood. A jelly mass like substance is formed by the platelets and fibrin in the blood. Platelets play a vital role in the clotting of blood.
Given below is the flow chart representing the major steps involved in the process of clotting of blood:
Injury to blood vessel and platelets release prothrombin
⇓
Activation of prothrombin to thrombin
⇓
Splitting up of fibrinogen to fibrins by thrombin
⇓
A mesh is formed around the wound controlling RBC and platelets by fibers present in fibrins
⇓
Bleeding is stopped
⇓
The clot hardens and becomes smaller in size
⇓
New cells are grown to rebuild the wounded site
⇓
Plasmin enzymes are released and the clot is dissolved
If bacteria are exposed to an antibiotic for the first time. they will: A. lack resistance because without previous exposure to the antibiotic they cannot develop resistance. B. have resistance because their ancestors were exposed to this antibiotic or a similar antibiotic. C. lack resistance because their immune system needs to see the antibiotic in order to develop resistance. D. have resistance if mutations or horizontal gene transfer provide some members of the population with resistance.
Answer: A
Explanation:
Their immune system lacks the antibodies to combat the antibiotic and need to be exposed to it first before it develops.
Two enzymes are tested at various pHs to determine where they would function the
best. Which of the conclusions is supported by the data collected?
Answer:
C. Enzyme A will be inactive at a pH above 1o
Explanation:
Enzymes are sensitive to temperature and pH. If the temperature or pH, are altered one way or the other, it will no longer be able to speed up a reaction.
20 points + brainliest to first correct answer! :))
Which outcome would most likely suggest that data collected is unreliable?
Other scientists conduct the same study but find different data.
The data is put on a scatterplot but does not show any trend.
Each data point is considered by many scientists to be accurate.
Many tools were used in the same laboratory to measure the data.
Each data point is considered by many scientists to be accurate. This is answer.
PLEASE MARK ME BRAINLIESTI believe your answer is.. A.) Other scientists conduct the same study but find different data.
I hope this is correct and helps!
Is the stomach anterior or posterior to the navel?
Answer: Anterior
Explanation:
What is prokaryotic cell and a eukaryotic cell?
Answer:
Prokaryotic cells are cells without a nucleus.
Eukaryotic cells are cells that contain a nucleus.
Explanation:
Answer:
The cell which is well developed and have nuclear membrane is called eukaryotic cell whereas the cell which is under-developed and lacks nuclear membrane is called prokaryotic cell.
Answer these questions.
a. What is renewable source of energy?
b. What are different forms of energy?
c.What is non-renewable source of energy? Give some examples.
d.What are the various uses of electrical energy?
e. What is magnetic energy? Mention its uses.
f. Why is the sun regarded as the main source of energy?
Answer:
a) The resources which can be regenerated and replaced at the shorten period of time is called renewable source of energy.
b) The different forms of energy are:
1) Mechanical energy
2) Heat energy
3) Light energy
4) Chemical energy
5) Sound energy
6) Electrical energy
c) The resources which cannot be replaced shortly after they are finished is called non-renewable sources of energy. For example: coal, petrol, minerals etc.
e) The energy which affects the magnetic bodies is called magnetic energy .
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Answer:
teachers teachings n my brain b like
Explanation:
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identify science vs. pseudoscience ?
Answer:
The big difference Popper identifies between science and pseudo-science is a difference in attitude. While a pseudo-science is set up to look for evidence that supports its claims, Popper says, a science is set up to challenge its claims and look for evidence that might prove it false.
One example of scientists taking different approaches that lead to the same result is
two scientists testing different hypotheses about the same question.
two scientists repeating a third scientist’s experiment as published.
two scientists working on one experiment at the same time in different labs.
two scientists performing one experiment at different times in the same lab.
Answer:
Could have Just said its A
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Explanation:
what makes the pelvic girdle more rigid than the pectoral girdle
Explanation:
The pectoral girdle is weaker than the pelvic girdle because the pelvic girdle is the primary weight bearing and locomotory structure for the body through the attachment of the legs where as the pictoral girdle is the site of the arm attachment which is more for dexterity
5 things that cellular respiration and photosynthesis have in common
Which of the following is an example of anaerobic respiration?
A. Plant roots respiring in soil
B. Lactic acid building up causing sore muscles
C. Oxygen diffusing into a plant cell through stomata
D. Breaking down of glucose with oxygen inside an animal cell
Answer:
Answer: Lactic acid building up causing sore muscles
Explanation:
Got it right on the test.
An example of anaerobic respiration is lactic acid building up, causing sore muscles. The correct option is B.
What is anaerobic respiration?
Anaerobic respiration is respiration that occurs in the absence of oxygen. When we exercise or run, more amount of oxygen is needed, so there is less oxygen remaining for the reactions, these reactions occur in absence of oxygen.
Thus, the correct option is B.
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Please help quickly! I don’t know how to fill this out!
Answer:
biosphere-sugar cane fields,earthworm in soil,moss in a forest
hydrosphere-iceberg,river,clouds
lithosphere-rock formation,sand dunes,soil
atmosphere-top of earths atmosphere,The region of space occupied by Earth's atmosphere.
Explanation:
Explain how observation, interpretation, and explanation are important to the study of science.
Answer:
Observation is essential in science. Scientists use observation to collect and record data, which enables them to construct and then test hypotheses and theories. Scientists observe in many ways – with their own senses or with tools such as microscopes, scanners or transmitters to extend their vision or hearing.
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how do we know where the oceans separate?
Answer:
Simplesmente pelo contorno dos continentes e por linhas imaginárias que cortam a porção líquida do planeta.
Explanation:
confia
What fields listed under the Fields of Biology heading were made possible by the ability to read and/or alter genetic information?
Diseases can alter an organism’s homeostasis. When you get sick and have a fever, what internal condition has changed?
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Answer:
uses of measurement? I jump on it, but it was going out for a gate, the only birds who bob their heads. Hello my name of measurement, and pigeons in the
Which of the following statements best describes the relationship between genes and DNA?
A
Genes are regions in the DNA that code for important products, such as proteins.
B
Genes are made up of proteins, which provide instructions for making DNA.
C
Genes are made up of multiple protein-encoding DNA molecules.
Answer:
A
Explanation:
Genes are composed of DNA arranged on chromosomes. Some genes encode structural or regulatory RNAs. Other genes encode proteins. Replication copies DNA; transcription uses DNA to make complementary RNAs; translation uses mRNAs to make proteins
Relationship between Genes and deoxyribonucleic acid are that - Genes are created of Proteins, which give directions for creating deoxyribonucleic acid.
What is DNA?DNA stands for Deoxyribonucleic acid that may be a chemical compound composed of 2 polynucleotide chains that coil around one another to create a spiral carrying genetic directions for the event, functioning, growth and replica of all renowned organisms and plenty of viruses.
DNA is the hereditary material in humans and most different organisms. Nearly each cell in every person’s body has an equivalent deoxyribonucleic acid.
DNA was discovered by famous Scientist Watson and Crick in the year 1950.
Most deoxyribonucleic acid is found within the nucleus (where it's known as nuclear DNA), however a tiny low quantity of deoxyribonucleic acid can even be found within the mitochondria (where it's known as mitochondrial deoxyribonucleic acid or mtDNA).
The information in deoxyribonucleic acid is hold on as a code created of four chemical bases: Adenosine (A), Guanine (G), Cytosine (C), and Thiamine (T).
Human DNA consists of about 3 billion bases, and more than 99 percent of those bases are the same in all people. The order, or sequence, of these bases determines the information available for building and maintaining an organism.
DNA bases combine up with one another, A with T and C with G, to create units known as base pairs. Every base is additionally hooked up to a sugar molecule and a phosphate molecule.
Together, a base, sugar, and phosphate are known as a Nucleotides. Nucleotides are organized in 2 long strands that type a spiral known as a Double Helix .
The structure of the double helix is somewhat like a ladder, with the base pairs forming the ladder’s rungs and the sugar and phosphate molecules forming the vertical sidepieces of the ladder.
An important property of deoxyribonucleic acid is that it will replicate and create copies of itself. Every strand of deoxyribonucleic acid within the spiral will function as a pattern for duplicating the sequence of bases.
This is vital once because cells divide as a result of which every new cell must have a certain copy of the deoxyribonucleic acid within the previous cell
What is a gene?A Gene is the basic physical and purposeful unit of heredity created of deoxyribonucleic acid.
Some genes act as directions to create molecules known as proteins. However several genes don't code for proteins.
In humans, genes vary in size from a couple of hundred deoxyribonucleic acid bases to quite two million bases.
Gene is a basic unit of heredity and a sequence of nucleotides in deoxyribonucleic acid that encodes the synthesis of a factor product, either RNA or Proteins.
Genes will acquire mutations in their sequence, resulting in totally different variants, called alleles, within the population.
These alleles cypher slightly totally different variant of proteins that cause totally different composition traits.
Genes evolve because of action / survival of the fittest and genetic drift of the alleles.
An endeavor known as the Human order Project, that worked to see the sequence of the human order and determine the genes that it contains, calculable that humans have between 20,000 and 25,000 genes.
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HELP PLEASE!!!!!
Compare a virus to a unicellular organism. (1 point)
O Viruses need energy, unicellular organisms do not need energy.
O Unicellular organisms have a cell membrane made from a lipid bilayer, viruses have a protein coat
O Viruses reproduce through asexual reproduction; unicellular organisms need a host cell,
O Neither unicellular organisms nor viruses respond to stimuli.
Answer:
differences : Viruses need energy while unicellular organisms donot need energy
Unicellular organism has cell membrane but virus has protein coat.
Unicellular organisms have a cell membrane that is made from a lipid bilayer whereas viruses have a protein coat which is called capsid. Unicellular organisms reproduce through asexual reproduction whereas virus need a host cell for their survival because virus use the cell engine to extract food for their survival so it is conclude that unicellular organisms have cell membrane but virus has protein coat.
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If the body is cut superiorly and inferiorly during an incision, this would be a
plane.
O Coronal
O Frontal
O Sagittal
O Transverse
Answer:
Transverse
Explanation:
transverse plane: a horizontal line which divides the body into an UPPER (SUPERIOR) and LOWER (INFERIOR) section
Identify the organelles in the cell to the right.
A
B
C
D
E
F
Answer:
A=Vacuole
B=chloroplasts
C= cell membrane
D= endoplasmic reticulum
E= nuclear envelope / or nucleus in general
F= The cell wall.
Which of these correctly demonstrates the biomolecule with its function?
A)
steroids; separate the cytoplasm from the environment
B)
waxes, prevents water loss and repels water
c)
triglycerides; make up sex hormones
D)
phospholipids, store energy
Answer:
B) Waxes, prevents water loss and repels water
Explanation:
Waxes, steroids, phospholipids, and triglycerides are types of lipids. All of them are made of Hydrocarbon chains that are hydrophobic.
Triglycerides (fats) - Storage molecules for the body's energy
Steroids - Sex hormones and cholesterol
Phospholipids - Cell membrane (Separates cytoplasm from the environment)
Therefore, Answer choice B) Waxes, prevents water loss, and repels water, is the only answer that correctly matches with the provided answers.
Carbon atoms are able to
give off electrons to form negative carbon ions
bond with other carbon atoms to form long chains
gain four extra electrons to form positive carbon ions
form five single covalent bonds with their valence electrons
Answer:
Gain four extra electrons for form positive carbon ions
Need Help!!!Due today!!!!I will give Brainliest for the correct answer!!!!
Answer the questions below:
•Name 3 properties of carbon
•To make a new polymer, what process must you use?
•To separate the monomers from its polymer, what process must you use?
Answer:
• carbon is unreactive under normal conditions
• 3 isotopes
• atomic mass is 12.011 g.mol ^-1
•polymerization
•Hydrolysis
Explanation:
• basic facts that are found int he period table
• this process can only be used to make polymers
• this process is used to break down polymers to monomers
Salt dissolves in water because?
At the molecular level, salt dissolves in water due to electrical charges and due to the fact that both water and salt compounds are polar, with positive and negative charges on opposite sides in the molecule. ... Water molecules pull the sodium and chloride ions apart, breaking the ionic bond that held them together.
Which of the following structures in the human body has the highest level of organization?
atoms
OOOO
tissue
cells
organ systems
Answer:
Organ Systems
Explanation:
in level of organization, its arrange in these order
cells-tissues-organs-organ systems
Which system covers and protects the tissues of the body from UV light and from infections due to bacteria and viruses?
Answer:
integumentary system
Explanation:
The integumentary system is an organ system consisting of the skin, hair, nails, and exocrine glands. The skin is only a few millimeters thick yet is by far the largest organ in the body. The average person’s skin weighs 10 pounds and has a surface area of almost 20 square feet. Skin forms the body’s outer covering and forms a barrier to protect the body from chemicals, disease, UV light, and physical damage. Hair and nails extend from the skin to reinforce the skin and protect it from environmental.
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The system covers and protects the tissues of the body from UV light and from infections due to bacteria and viruses is - the integumentary system,
The integumentary system is the outer covering of the body that is made up of the skin with other outer structures such as nails, and hairs. The integumentary system has several functions in the body.
It protects the body internal organs from infection from viruses and bacteria. It avoids dehydration.secrete oils that enhances the barrier function of the skin from UV radiation from the sun.provide the first line of defense against infection. sweat glands present on skin help in thermoregulation. produce vitamin D from by sun exposure by cholesterols. neurons imbedded on the integumentary layer to sense the outside world.Thus, the correct answer is - the integumentary system
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How do the oceans affect the climates of the world?
Explanation:
by absorbing solar radiation and releasing heat is needed to keep making the atmospheric circulation, and by releasing aerosols influence cloud cover, by emitting the most water that falls on land as rain.
what defines a living system
I need help with 5-10
Answer:
36.6 19.1 96.6 73.5 89.9 663
WILL GIVE BRAINLIEST TO WHOEVER IS RIGHT.
9.967×10^-5 to standard notation
Answer:
0.00009967
Explanation:
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