What is the first procoagulant that the extrinsic and intrinsic pathways have in common?.
Answer:
Prothrombin is activated to thrombin.Factor X is the first procoagulant that the extrinsic and intrinsic pathways of the blood clotting system have in common. Thus, option D is correct.
What is the blood clotting pathway?Blood clotting is the process to stop the flow of blood from the injury. There are two pathways the extrinsic and the intrinsic that have Factor X as the common procoagulant.
Factor X or the Stuart factor is synthesized in the liver and interacts with the other procoagulant in the blood clotting pathway to form a clot and stop bleeding.
Therefore, Factor X is the common procoagulant in the intrinsic and extrinsic pathways of blood clotting.
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The complete question is attached to the image below.
Which of the following best describes
which living organisms create the community of an ecosystem?
A. any living thing from single to multicellular plants or
animals
B. anything that is a multicellular organism
C. anything that has the ability to hunt for its own food
D. anything living that is considered to be plant life
Answer:
A
Explanation:
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When using punnett squares to determine the patterns of inheritance of an organism, the phenotype of an individual is determined by his or her Question 2 options: genotype. Mother's allele only. Father's allele only. Incomplete dominance.
Answer:
wheres the punnett square
Explanation:
what are some other types of trees that do not change color
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Coniferous trees are what you might generally refer to as pine or evergreen trees; they have thin, waxy needles instead of broad leaves. In stark contrast to they're deciduous counterparts, conifers needles don't change colors and aren't shed annually, but only every few years.
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The type of endocytosis that involves formation of vacuoles following engulfment of whole cells or large particles is called
The type of endocytosis that involves engulfment of whole cells or large particles is called phagocytosis. It is important in the immune system.
What is endocytosis?Endocytosis is a cellular process by which cells take materials from their surrounding environment.
Endocytosis can be divided into pinocytosis and phagocytosis. By pinocytosis, a cell can take fluids with dissolved molecules.
Phagocytosis refers to the cellular process where a cell internalizes larger molecules or even cells (e.g., damaged cells).
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Which statements about the Milky Way are true? Choose more than one answer.
It is constantly moving
Stars and planets make up most of its mass
It contains very little dust and gas
It contains millions of stars
It has a spiral shape
It has an undefined shape
Answer B, D, E
Explanation:
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Answer: There is a 100% chance of a heterozygous offspring, or an offspring with the allele Pp
Explanation: This percentage is calculated by looking at the total number of Pp divided over the number of possiblities. In this case there are 4 Pp, divided by 4 possible variations from the two parent alleles, making it a 4/4 or 1/1 orrr 100% chance of getting a Pp, or heterozygous offspring.
What happens in telophase of mitosis?
•This is the cell's normal functioning stage
•Chromosomes are on opposite sides of cell, nucleus is reforming
• Chromosomes line up in the middle
•Two separate cells are made
What rarely reacts with metals? acids , bases or both?
Answer:
bases
Explanation:
Bases don’t occasionally react with metals.
I hope It helps! Have a great day!
Lilac~
Bases rarely react with metals.
Do bases react with most metals?
Some metal reacts with a base to form salts and hydrogen gas. Most metals do not react with bases but zinc metal does because it is amphoteric. That is, it reacts with acids as well as bases. When sodium hydroxide solution is heated with zinc, then sodium zincate and hydrogen gas are formed.
Which metals do not react with bases?Metals form salts by transforming themselves into cations and combining with the anions present in the acids. Hence, not all metals react with bases, only amphoteric metals like zinc and aluminium react with bases.
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Why is dna synthesis considered to be discontinuous? what are some other terms associated with discontinuous dna synthesis?.
Which of the following is not a potential consequence of Earth reaching its global capacity? Degradation of land Scarcity of resources More spread of disease Fewer mass extinctions.
Fewer mass extinction is not a potential consequence of Earth reaching its global capacity. Thus, the correct option for this question is D.
What is mass extinction?Mass extinction may be characterized as a type of event in which a large number of species vanish at a much faster rate than they are replaced in the natural ecosystem. This event is ultimately responsible for the reduction in the biodiversity present on the surface of the Earth.
An event of mass extinction is thought to take place when multiple Earth systems are thrown off kilter and when these changes happen rapidly more quickly than organisms evolve and ecological connections adjust innately.
Processes like the degradation of land, scarcity of resources, more spread of disease, and large or huge mass extinction are some of the potential consequences of Earth reaching its global capacity.
Therefore, less mass extinction is not a potential consequence of Earth reaching its global capacity. Thus, the correct option for this question is D.
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Describe the components and structure of a DNA nucleotide
Answer:
Nucleotide
A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base. The bases used in DNA are adenine (A), cytosine (C), guanine (G), and thymine (T). In RNA, the base uracil (U) takes the place of thymine.
Which gymnosperm is often confused with a palm tree?.
Answer:
Cycads (phylum Cycadophyta)
Explanation:
Cycads (phylum Cycadophyta) resemble palm trees and grow in tropical climates. Gingko biloba is the only representative of the phylum Gingkophyta. The last phylum, Gnetophyta, is a diverse group of shrubs that produce vessel elements in their wood.
Jena is reviewing her notes on action potentials for a quiz. She makes an extra notation that before the action potential when the neuron is at rest, sodium channels _____.
Before the action potential when the neuron is at rest, sodium channels are closed and don't allow sodium to pass-through. These channels are proteins.
What are sodium channels?Sodium channels are specific channels composed of proteins that allow the passage of sodium ions in cells (e.g., neurons).
This passage is fundamental to generating a membrane potential during the transmission of electrical impulses.
When one action potential has been produced the depolarization of cells activates sodium channels.
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How does prokaryotic dna differ from eukaryotic dna?.
Answer:
hope this helps
Explanation:
Prokaryotic genomic DNA is attached to the plasma membrane in the form of a nucleoid, in contrast to eukaryotic DNA, which is located in a nucleus. Prokaryotes contain circular DNA in addition to smaller, transferable DNA plasmids. Eukaryotic cells contain mitochondrial DNA in addition to nuclear DNA.
(I will put the correct answers for the whole quick check in the comments)
If you were analyzing a microscopic model of a freshwater ecosystem, what is one
autotroph you might encounter? (1 point)
O ciliates
o algae
O bacteria
O flagellates
Answer:
Explanation:
1. ecosystem
2. arthropods
3. Microscopic models move at a much faster rate than large-scale systems.
4. algae
100%
If you were analyzing a microscopic model of a freshwater ecosystem, one autotroph that you might encounter is an alga. Thus, the correct option for this question is B.
What is an Ecosystem?An ecosystem may be defined as a type of place or an area where individuals of different species live together and interact with one another for the purpose of food, shelter, and space.
According to the context of this question, algae are generally found in the freshwater ecosystem as well. They significantly utilize the nutrients from other water bodies and grow appropriately. While organisms like ciliates, bacteria, and flagellates are found in polluted or salty/marine water.
Therefore, if you were analyzing a microscopic model of a freshwater ecosystem, one autotroph that you might encounter is an alga. Thus, the correct option for this question is B.
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Why are start and end amino acids encoded by only one codon?
Answer:
The nucleotide triplet that encodes an amino acid is called a codon. Each group of three nucleotides encodes one amino acid. Since there are 64 combinations of 4 nucleotides taken three at a time and only 20 amino acids, the code is degenerate (more than one codon per amino acid, in most cases).
2 ____ are equal to one whole
Answer:
2 halves are equal to one whole
1/2 + 1/2 = 1
The study of how the same genotype may lead to different phenotypes is known as.
Answer:
In other words, researchers study how the same genotype can lead to very different phenotypes Genotype. Phenotype. The hereditary information of the organism in the form of gene in the DNA and remains the same throughout the life. The characters of an organism which are visible are known as phenotypes.
Explanation:
Hope this helps! :)
The study of how the same genotype may lead to different phenotypes is known as epigenetics.
What is epigenetics?Epigenetics is the study of how environmental factors and behaviour can alter how your genes function.
While epigenetic alterations are reversible and do not alter your DNA sequence like genetic changes do, they can alter how your body interprets a DNA sequence.
In biology, the study of persistent phenotypic changes that do not entail changes in the DNA sequence is known as epigenetics.
The word "epigenetics" comes from the Greek prefix epi, which denotes characteristics that are "on top of" or "in addition to" the conventional genetic basis for heredity.
Epigenetic patterns may be affected by a number of lifestyle factors, including food, obesity, physical activity, alcohol consumption, smoking, exposure to environmental toxins, stress, and working night shifts.
Thus, the answer is epigenetics.
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What effect dose changing the number of electrons, protons and neutrons have on an atom?
Answer:
Change the number of neutrons in an atom and it becomes an isotope, change the number of electrons, it becomes an ion. When you change the number of protons in an atom, you will change the atom from one element to a different element. Sometimes, when you add a proton to an element, the element will become radioactive.
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What does a small size of a cell allow for
Answer:surface area to volume ratio
Cell size is limited by a cell's surface area to volume ratio. A smaller cell is more effective and transporting materials, including waste products, than a larger cell. Cells come in many different shapes. A cell's function is determined, in part, by its shape
Explanation:
The fatty acid tails of phospholipids are ______ and are found in the ______ of the phospholipid bilayer.
In addition to observing living organisms, Darwin studied the perserved remains of ancient organisms called
Answer: Darwin studied the perserved remains of ancient organisms called Fossils.
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Which if the following mutations would change the amino acid sequence of a protein?
Help hurry pleaseeeeeee
During their mating season, male song sparrows sing to attract female song sparrows. A healthy male song sparrow is able to learn songs from other male song sparrows, and then produce a more complex song. Female song sparrows are attracted to more complex songs.
Why is the difference in song complexity important during mating season?
A.
The healthy males will teach the females the complex songs so they can attract males.
B.
The females will mate with healthier males, so they can produce stronger offspring.
C.
The females will know to stay away from the song sparrows with complex songs.
Answer:
A
Explanation:
Because Female song sparrows aren't just attracted to the song and rhe sparrow but also the ability they had to learn how to sing those complex songs.
Suppose a herd of dairy cows is given an excess of antibiotics, which enter their stomachs. What biological process will the cows now have difficulty performing
Excess antibiotics will hinder the digestion of grasses in dairy cows.
Digestion in cowsCows are able to digest grasses through a symbiotic association with some cellulose-digesting bacteria in their stomach.
Without these bacteria, the digestion of cellulose (the main component of grasses) would become impossible.
Excessive usage of antibiotics by cows may end up killing some of the symbiotic bacteria, thus making the digestion of grasses difficult.
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Summarize the relationship between proteins and genes.
Which type of metabolic reaction is an example of a process that does not require coupling to atp hydrolysis?.