When blood is drawn from your arm, what type of vessel does the phlebotomist use? Why?
Answer:
1. Median cubital vein A superficial vein, most commonly used for venipuncture, it lies over the cubital fossa and serves as an anastomosis between the cephalic and basilic veins. 2. Cephalic vein Shown in both forearm and arm, it can be followed proximally where it empties into the axillary vein.
Explanation:
How do you think the systems on Earth work together to create what we see on Earth?
Answer:
Explanation:
Like this
what do Entropy mean
Answer:
lack of order or predictability; gradual decline into disorder.
Explanation:
Answer:
Entropy means the amount of energy in a system that is unable to work
(randomness)
Explain why lamarckism is currently not a widely accepted theory
Answer:
Its not really taught in schools that much.
Explanation:
If anyone knows this please let me know and explain??
Answer:
I am pretty sure the answer is Melting
Explanation:
What would happen if a cell couldn't make catalase?
Answer:
If hydrogen peroxide is not broken down by catalase, additional reactions convert it into compounds called reactive oxygen species that can damage DNA, proteins, and cell membranes. ... A shortage of this enzyme can allow hydrogen peroxide to build up to toxic levels in certain cells
If hydrogen peroxide is not broken down by catalase, it can be converted into reactive oxygen species, which can damage DNA, proteins, and cell membranes.
What is catalase?Catalase is an important enzyme that uses hydrogen peroxide, a non-radical ROS, as a substrate.This enzyme breaks down and neutralizes hydrogen peroxide to maintain optimal molecular levels within cells.It is also essential for cell signaling processes. The catalase enzyme breaks down hydrogen peroxide (H2O2) into water and molecular oxygen, protecting cells from oxidative damage by reactive oxygen species.Commercially available catalase is produced from Aspergillus niger by a solid-state fermentation process.Peroxidase or catalase is an enzyme of the oxidoreductase class. The peroxidase enzyme catalyzes the breakdown of hydrogen peroxide into water and molecular oxygen as shown.Catalase is a tetrameric heme protein that detoxifies H2O2 into oxygen and water.It is a metalloprotein oxidoreductase and when present in high concentrations he efficiently removes H2O2.To learn more about catalase, refer
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What are condensation nuclei?
Answer:
Cloud condensation nuclei or CCNs are small particles typically 0.2 µm, or 1/100 the size of a cloud droplet on which water vapor condenses. Water requires a non-gaseous surface to make the transition from a vapour to a liquid; this process is called condensation.
MAYBE I THINK ;)
Decision as to the cause or nature of a disease given by the M.D.
_____________.
it gives no choices but this is medical terminology
please help
Please help me. <><><><><<>
Answer:
I would say D
Explanation:
what insects are missing from the tundra
Answer:
ant
Explanation:
Which statement is true regarding the transmission of sex-linked traits in a population?
O Males cannot carry recessive alleles for sex-linked traits.
O Males cannot express dominant alleles on the X chromosome.
O Males cannot express recessive alleles on the X chromosome.
O Males cannot pass alleles for sex-linked traits to their daughters.
Answer: none of the statements are true
Explanation: Males can have a recessive copy of a X-linked gene, and can pass that on in the X containing gamete and so pass it on to daughters, but not to male offspring. Males will express whichever allele, dominant or recessive that they carry.
Summary
Food is chemical energy stored in organic molecules.
Food provides both the energy to do life's work and the carbon to build life's bodies.
• Autotrophs make their own carbohydrate foods, transforming sunlight in photosynthesis
or transferring chemical energy from inorganic molecules in chemosynthesis.
Heterotrophs consume organic molecules originally made by autotrophs.
All life depends absolutely upon autotrophs to make food molecules.
Questions:
Use the text above to answer the following questions.
1. Water and carbon dioxide mdlecules are reactants in the process of photosynthesis. Does
this mean they are "food" for plants, algae, and blue-green bacteria? Use the definition of "food
to answer this question.
2. Compare autotrophs to heterotrophs, and describe the relationship between these two grou
3. Name and describe two types of food making found among autotrophs, and give an example of each. which is quantitatively more important to life on earth (Which are there more of)
Which of the following is false about DNA?
A. DNA is made up of units called nucleotides.
B. Any base can pair to any other base.
C. DNA contains the instructions to make proteins.
D. DNA is found in a cell's nucleus.
Answer:
b. any base pair can pair to any other base
Explanation:
Any base pair cannot pair with any other base, Adenine pairs with thymine and cytosine pairs with guanine.
• The hereditary material in humans and almost all of the living species is known as DNA or deoxyribonucleic acid.
• The majority of the DNA is present within the nucleus of the cell.
• DNA comprises the instructions to make proteins that helps to perform essential functions within the body of an organism.
• Within the DNA, information is stored in the form of a code formed of four chemical bases, that is, Adenine, guanine, cytosine, and thymine.
• The base pairs present within the DNA pairs up with each other, that is, adenine pairs with thymine only, and guanine pairs with cytosine, no other kind of pairing is found within the DNA. Each base of also attached with a molecule of phosphate and sugar.
• Together, a phosphate, base, and sugar are known as a nucleotide.
Thus, statement B is incorrect.
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What happens to the amount of energy as it moves up through an energy pyramid?
A. Some of the energy is lost.
B. Organisms double their energy as they move up the pyramid
C. Energy is transferred from the top to the bottom
D. The energy levels stay the same
Answer: some energy is lost from the pyramid, energy is transferred from bottom (producers) to top, but in decreasing amounts.
Explanation: total energy is conserved, but not necessarily within the energy pyramid, which is an open system where energy is lost from the pyramid, mainly as heat but also as sound.
Energy is transferred up the pyramid but the amount transferred at each stage is less because of losses outside the pyramid.
Order the following words from smallest to largest. Cell, atom, organ, tissue, electron element, molecule, organ system, organism, macromolecule.
Answer:
Electron, Atom, Element, Molecule, Macromolecule, Cell, Tissue, Organ, Organ Systems, Organism
Explanation:
Electron, atom, element, molecule, macromolecule, cell, organ, organ system, organism.
In the organization of life, it is usually arranged from the smallest to the most complex.
The electrons: This is the negative part of an atom that revolves round the nucleus of an atom.
The atom: This is the smallest unit of an element.
The element: This is a substance that is made up of atoms and cannot be further broken down.
The molecule: This is made up of elements that are usually held together by a chemical bond.
The macromolecule: This is a large molecule .which consists of smaller molecules combine together.
The cell: This is the structural and functional unit found in a living organism.
The organ: This is made up of a collection of tissues that carry out the same function.
The organ system: This is made up of different organs that work together to perform a similar function.
The organism: This can either be animal or plants that are capable of functioning independently.
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Do you think humans go through a simple life cycle? Explain your reasoning.
Answer: no
Explanation: we complex
A group of squirrels living in the same area and competing for similar resources is called a
A sample of a meteorite has a density of 23 g/ml. It takes up a volume of 147 ml.
What is the mass of this unknown sample?
Answer:
3,381 grams
Explanation:
The problem can be solved by using the formula for "Density." The formula for density is: Density (ρ) = [tex]\frac{mass}{Volume}[/tex]
Now that we know the formula, we can get the formula for the "mass."
mass = ρ x VolumeThe given density above is 23 g/mL while the given volume is 147 mL. We have the values of the density and volume, thus, it is easy to solve the problem.
Let's solve.
mass = 23 g/mL x 147 mLmass = 3,381 gramsThe mass of the meteorite is 3,381 grams.
10. What is the difference between predation and parasitism? *
Answer:
Predation involves an indivudal creature hunting, killing, and then consuming an animal. An example of this would be a fox hunting a rabbit and then eating it. A parasite is something that can live on or inside another organism, feeding off of it without outright killing it (at least not right away). An example of a parastie would be a tapeworm.
Answer:
C) Predators typically kill their victim, while parasites mostly want to keep the victim alive for continued resources.
Explanation:
-3-
What portion of the DNA molecule is variable and serves as the “GENETIC CODE
The picture shows a model of a cell. What is the main function of the cell part labelled Y in the model
I need help it’s hard help please
Having pierced ears is an example of a trait.
Answer:
physical trait because you can observe it directly
Explanation:
Among cattle, coat color is controlled by 2 codominant alleles, RR (producing a red coat) and WW (producing a white coat). The 2 alleles together, RW, produce a “roan” coat. The presence or absence of horns is controlled by the alleles H (hornless) and h (horned), with H completely dominant over h. show what the genotypes and phenotypes would be in both the F1 and F2 generations of a cross between RRHH x WWhh parents.
I will mark branliest to the first good answer
gene expression is a regulated process due to the fact that-
Answer:
-almost all the cells of your body contain the exact same DNA.
Explanation:
Gene regulation is how a cell controls which genes, out of the many genes in its genome, are “turned on”.
Answer:
Genes are regulated to preserve energy and space.
Explanation:
The process of expressing genes is an energy-requiring process since it requires the breaking and synthesis of proteins. When genes are regulated energy is saved as only the gene required to perform a certain job is turned on and after the function is completed it is turned off. Therefore, continuous protein synthesis is not required to express the genes at all times.If the genes were not regulated i.e., turned off and turned on at required times then it would take a never-ending spree of gene expression which in turn would require a lot of time in transcription and translation.For more information:
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Please help u have to do this today
Answer:
A
Explanation:
Both are igneous because lava/ magma form igneous rocks.
Limestone form as ocean water evaporates and leaves calcium carbonate behind, which is the deposited in the seabed. What type of rock can be formed this way?
Answer:
Sedimentary rock.
Explanation:
Limestone form as ocean water evaporates and leaves calcium carbonate behind, which is then deposited in the seabed. Thus, the type of rock that can be formed this way is a sedimentary rock.
The texture of inorganic land-derived sedimentary rocks is fragmental or clastic. Sediments come from land to form inorganic sedimentary rocks.
Some examples of inorganic land-derived sedimentary rocks are conglomerate, brescia and sandstone.
What are the energy producing organelles and under what conditions do they produce energy
Answer: mitochondria are the site of aerobic respiration, for which of course, they require oxygen.
Explanation: mitochondria are the site of aerobic respiration and energy production for which they require a supply of oxygen
The energy-producing organelle is the mitochondria, and the mitochondria make the energy in the aerobic cellular respiration where the cell uses oxygen and makes the energy that is the ATP.
What is the function of the mitochondria?The mitochondria are cellular organelles in which energy is produced, which happens when the cell gets enough oxygen and the glucose is broken down completely to form ATP. The ATP is formed due to the proper oxygenation of the glucose, and the proton gradient is formed. The proton gradient gives the energy to the cell for energy production, and the energy is used by the cell for the overall body metabolism and growth.
Hence, the energy-producing organelle is the mitochondria, and the mitochondria makes the energy in the aerobic cellular respiration where the cell uses oxygen and makes the energy that is the ATP.
Learn more about the mitochondria here.
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What are the signs and symptoms of sickle cell anemia?
symptoms
Explanation:
swelling
frequent infections
delayed growth or puberty
vision problems
sickle cells break apart easily and die leaving you with to few red blood cells
whick factor is a density dependent limting factors on poplation of a species
Answer:
I need to see an image of something to help u out