The embryonic germ layer of tissue in animals that develops into the skin and nervous system is the:
Answers
Answer:
The embryonic germ layer of tissue in animals that develops into the skin and nervous system is the ectoderm.
Explanation:
During embryonic development, three primary germ layers form early on: the ectoderm, mesoderm, and endoderm. The ectoderm is the outermost layer of cells in the developing embryo and gives rise to structures such as the skin, nervous system, and sensory organs. The mesoderm is the middle layer and gives rise to structures such as muscle, bone, and blood vessels. The endoderm is the innermost layer and gives rise to structures such as the digestive and respiratory systems.
The ectoderm gives rise to a diverse array of tissues and organs, including the epidermis of the skin, hair, nails, and sweat glands. It also gives rise to the cells that form the central and peripheral nervous systems, including the brain, spinal cord, and peripheral nerves. The ectoderm is a critical embryonic germ layer that plays a fundamental role in the development of many important structures in the body.
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Related Questions
tRNA molecules deliver amino acids to ribosomes where protein synthesis takes place. At the ribosome, the new amino acid attached to the tRNA
Answers
tRNA molecules deliver specific amino acids to ribosomes during protein synthesis, where they are incorporated into the growing polypeptide chain based on mRNA codons.
During protein synthesis, tRNA molecules play a crucial role in delivering the correct amino acids to the ribosomes. Each tRNA molecule has a specific three-nucleotide sequence called an anticodon that is complementary to a corresponding codon on the mRNA molecule. This ensures the accurate pairing between the codons and anticodons during translation.
The process begins when an aminoacyl-tRNA synthetase enzyme attaches a specific amino acid to its corresponding tRNA molecule, creating an aminoacyl-tRNA complex. This complex is then recognized by the ribosome.
At the ribosome, the mRNA strand passes through the small and large subunits, with the codons being exposed in the ribosome's active site. As the ribosome moves along the mRNA molecule, it reads each codon and facilitates the pairing with the anticodon of the appropriate tRNA molecule. This complementary binding occurs through base-pairing interactions.
Once the correct tRNA molecule with its attached amino acid is bound to the ribosome, a peptide bond forms between the growing polypeptide chain and the incoming amino acid. The ribosome catalyzes this reaction, transferring the amino acid from the tRNA molecule to the polypeptide chain. The tRNA molecule is then released from the ribosome, and the ribosome moves to the next codon on the mRNA, repeating the process.
This sequential addition of amino acids continues until a stop codon is reached, signaling the termination of protein synthesis. The completed polypeptide chain is then released from the ribosome and may undergo further modifications before becoming a functional protein.
The role of tRNA molecules in protein synthesis is vital for ensuring the accurate translation of the genetic code from mRNA to protein. Their ability to carry specific amino acids and recognize the corresponding codons allows for the precise assembly of amino acids into polypeptide chains, ultimately determining the structure and function of proteins in the cell.
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The term "hydrophobic" means water-fearing true or false
Answers
Answer:
true
Explanation:
hydro/hydra = water
phbic/phobia = scared
What steps do you take to make a good science fair project?
Answers
Pick a topic.
Research.
Hypothesis.
Experiment.
Construct an exhibit for results.
Write a report.
Practice presenting.
Pick something you are interested in, something you'd like to think about and know more about
Then do some background research on the topic.
Decide whether you can state a hypothesis related to the topic (that is, a cause and effect statement that you can test), and follow the strict method listed above, or whether you will just observe something.
Design and carry out your research, keeping careful records of everything you do or see and your results or observations.
Construct an exhibit or display to show and explain to others what you hoped to test.
Write a short report that also states the same things as the exhibit or display, and also gives the sources of your background research.
Practice describing your project and results, so you will be ready for visitors to your exhibit at the science fair.
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Explain how body plan and anatomy enables chordates to preform the essentials functions it needs to survive
Answers
Chordates share five morphological characteristics with deuterostomes, including a muscular postanal tail, a notochord, a dorsal neural tube, an endostyle, and pharyngeal gill slits.
The chordate notochord is a rigid rod with a fibrous sheath and a turgid core. It holds the creature back from shortening when locomotory waves are delivered through solid compression. Fluid in the body cavities provides support for the chordate body. The tunic provides additional support in tunicates.
A group of structural and developmental characteristics known as a body plan can be used to identify an animal species, such as a phylum. At some point during their development, whether they are in the embryonic, larval, or adult stages, all of the members of a particular group share the same body plan.
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Q-Explain how the body plan as well as the anatomy of a clownfish enables chordate to perform the essential functions that it needs in order to survive. Explain how the clown fish chordate fits into the cladogram of chordates.
cushing's disease is a result of which of the following? cushing's disease is a result of which of the following? hyposecretion of mineralocorticoids hypersecretion of epinephrine and norepinephrine hypersecretion of glucocorticoids hyposecretion of corticosteroids
Answers
Cushing's disease is a hormonal disorder characterized by the excessive secretion of glucocorticoids, specifically cortisol, in the body.
Cortisol plays a crucial role in the body's response to stress and helps regulate various physiological functions. However, prolonged exposure to high levels of cortisol can have detrimental effects on the body.
Cushing's disease is typically caused by the presence of a tumor in the pituitary gland, a small gland located at the base of the brain.
This tumor leads to the overproduction of cortisol, disrupting the normal hormonal balance.
The symptoms of Cushing's disease can be severe and may include obesity, hypertension, diabetes, mood disorders, and more.
To address Cushing's disease, treatment options often involve surgical intervention to remove the tumor causing the excessive cortisol production. In some cases, medications may be prescribed to reduce cortisol levels and alleviate the associated symptoms.
Early diagnosis and appropriate management are crucial to prevent complications and improve the overall well-being of individuals with Cushing's disease.
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How does the energy from the sun influence the water Cycle ?
Answers
Answer:
the suns energy heats up the ocean and other water and causes evaporation, beginning the cycle!
Explanation:
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What gas is made and released during Cellular respiration? What step does this happen in? A) CO2, Krebs Cycle B) O2, Calvin Cycle C) O2, Krebs Cycle D) CO2, Calvin Cycle
Answers
Answer:
Option A CO2,Kreb's cycle is the correct option
Explanation:
Epistasis is where one gene hides the effects of another gene. In labrador dogs, the dominant allele (E) determines whether the skin will have pigment. The dominant allele (B) determines how dark it is (color). Match the color dog with the correct genotype. Black lab Chocolate (brown) lab Yellow lab
Answers
Complete question:
I failed in finding the complete question. However, in the answer and explanation boxes, I will determine the genotypes of labrador for each color.
Answer:
For black-haired dogs: BBEE, BBEe, BbEE, BbEeFor brown (chocolate) color: bbEE, bbEeFor Yellow color: BBee, Bbee, bbee.Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files.
Which statement best describes succession?
A. An ecosystem's organisms become larger as succession
progresses.
B. Only communities with resistant species can avoid succession.
C. Succession causes a disturbedecosystem to become less stable.
D. Parts of all communities are constantly undergoing succession.
Answers
Succession is the change in either species composition, structure, or architecture of vegetation through time. Therefore, option (D) is correct.
What is succession?Ecological succession refers to the process by which the structure of a biological community changes as a function of the passage of time. Primary and secondary succession are the two distinct types of succession that have been distinguished.
Primary succession takes place in essentially lifeless areas, which are regions in which the soil is unable to support life as a result of factors such as lava flows, newly formed sand dunes, or rocks left behind by a receding glacier. Secondary succession happens in places where an older community that used to be there has been eradicated; it is characterized by smaller-scale disturbances that do not eradicate all life and nutrients from the environment. Secondary succession is a natural process.
Primary and secondary succession both result in a constantly shifting species composition within communities as a consequence of the various types of disturbances that occur on the landscape at varying intensities, sizes, and frequency.
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What choice best describes a wind that is caused by a convection current?
A: Warm air is more dense than cool air, so the warm air rises and cool air sinks and takes it's place creating wind.
B: Warm air is less dense than cool air, so the warm air rises and cool air sinks and takes it's place creating wind.
C: Cool air is more dense than warm air, so the cool air rises and warm air sinks and takes it's place creating wind.
D: Cool air is less dense than warm air, so the cool air rises and warm air sinks and takes it's place creating wind.
Answers
Answer:
The answer is actually " a ", " Warm air is less dense than cool air, so the warm air rises and cool air sinks and takes it's place creating wind. "
Explanation:
I took the quiz and picked " C " and it was wrong and it told me the answer was A .
Why did Portuguese sailors round the southern tip of Africa in 1488?
Answers
Answer:
In 1488, Portuguese explorer Bartolomeu Dias (c. 1450-1500) became the first European mariner to round the southern tip of Africa, opening the way for a sea route from Europe to Asia. ... A major maritime victory for Portugal, Dias' breakthrough opened the door to increased trade with India and other Asian powers.
Explanation:
Portuguese sailors around the southern tip of Africa in 1488 because his voyage showed that the Indian and Atlantic oceans flowed into each other.
Why southern tip of Africa named the cape of good hope?The Portuguese navigator Bartolomeu Dias gave the Cape its original name, the Cape of Storms, in the early 1500s. Later, it was changed to Good Hope to draw more travelers to the southern African coast-passing Cape Sea Route.
The Flying Dutchman supposedly resides at the Cape of Good Hope. The ship is crewed by tortured and ghostly sailors, and according to mythology, it is destined to endlessly beat its way across the nearby waters without ever succeeding in reaching the peninsula.
Thus, Portuguese sailors around the southern tip of Africa in 1488 because his voyage showed that the Indian and Atlantic oceans flowed into each other.
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Use the word bank below to fill in the blanks in the next question. Be careful, spelling counts! histone modification genomic conflict genetic maternal effect genomic imprinting environmental maternal effect DNA methylation induced pluripotent stem cells embryonic stem cells
usually inactivates genes, while We discussed two different types of epigenetic marks for "tags") in lecture. can activate or inactivate genes The hypothesis suggests that there are opposing evolutionary pressures on alleles of maternal versus paternal origin with respect to genes that affect early embryonic and fetal growth. Ideally, the cloning of whole organisms flike pets) should involve because these have very few or no epigenetic markers silencing specific genes. are usually used instead because they are easier to obtain, but they retain epigenetic tags that make cloning less successful The phenomenon in which a gene's expression is determined by its parental origin is called
Answers
DNA methylation usually inactivates genes, while histone modification can activate or inactivate genes. Genomic imprinting is the phenomenon in which a gene's expression is determined by its parental origin. Embryonic stem cells are usually used instead of induced pluripotent stem cells in cloning due to the retention of epigenetic tags that make cloning less successful.
DNA methylation plays a role in gene inactivation by adding methyl groups to DNA, while histone modification can activate or inactivate genes by modifying the histone proteins associated with DNA. Genomic imprinting refers to the phenomenon where gene expression is influenced by the parent of origin. In cloning, embryonic stem cells are preferred over induced pluripotent stem cells due to the retention of epigenetic tags that affect gene expression and may impact the success of cloning.
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Tropical rain forests tend to have soils that are nutrient poor, and most of the nutrients are found in the top few inches of the soil.
Which adaptation is most likely found in tropical trees?
deep root systems
shallow root systems
needles
pine cones
Answers
Answer:
B)- shallow roots systems
Explanation:
cause it the ground is always wet.
thank you
Answer:
its B- shallow roots systems.
Explanation:
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in a one celled organism cell division is responsible for
Answers
In a one-celled organism, cell division is responsible for reproduction.
In a one-celled organism, cell division is responsible for reproduction because all living things arise from a single cell. In unicellular organisms, such as bacteria and algae, cell division is the means by which new individuals are created. The entire organism is a single cell that reproduces asexually to create a new individual. Even in multicellular organisms, cell division is required for reproduction and growth.
The fertilized egg divides repeatedly during embryonic development, resulting in the creation of all of the cells in the body. After birth, cells continue to divide to replace old or damaged cells, resulting in growth and tissue repair. In summary, cell division is responsible for reproduction in one-celled organisms, while in multicellular organisms, it is necessary for both growth and reproduction.
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What is an important characteristic of an index fossil?
A. It must have been very small.
B. It must have lived in a very wide geographic region.
C. It must have lived for a long geologic period of time.
D. It must not be extinct.
Answers
can someone help as soon as possible!
Answers
Answer:
Option 3
Explanation:
The sperm and egg cell have 23 chromosomes whereas the parent has 46
The sperm and the egg cell's structure and genetic make-up is different from each other.
Generation
1
2
3
4
5
6
7
8
9
10
Number of deer
2
4
8
16
32
58
60
60
60
56
The data table above shows the growth of a deer population over 10 generations. Which number best
represents the concept of “carrying capacity” of the deer population?
a. 58
b. 32
c. 60
d. 120
Answers
Answer:
so many deer
Explanation:
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True or False: Immediate treatment is always necessary for those who have an arrhythmia.
*F
Answers
Answer:
False
Explanation:
Some heart arrhythmias do not need treatment. Heart arrhythmia treatment is usually only needed if the irregular heartbeat is causing significant symptoms, or if the condition is putting you at risk of more-serious heart problems.
Answer:
false
Explanation:
Suppose an ecosystem suddenly loses all of its consumers to a disease. Which of the following scenarios would most likely happen?
A} Carnivores and omnivores would starve to death.
B} Energy would no longer enter the ecosystem.
C} The ecosystem would become overgrown with plants.
D} Plant-eating organisms would become abundant.
Answers
PLZ HELP!! ASAP!!
Carbohydrates have chemical bonds that are a good source of energy for living things. A monosaccharide is a carbohydrate made by plants when energy from the sun combines water and carbon dioxide.
How are the two other types of carbohydrates formed? Give examples of each type.
Answers
Explanation:
The other two types of carbohydrates, disaccharides and polysaccharides, are formed when monosaccharides link together to form larger molecules and chains. A disaccharide is a sugar that is made from two monosaccharides (di=two). For example, sucrose is a disaccharide that is made from the bonding of glucose with fructose, which are both monosaccharides. Sucrose is known as table sugar, and is found naturally in plants. Polysaccharides are large, complex molecules that are formed when monosaccharides or disaccharides link together in repeating units to form long chains. The most abundant polysaccharide in the world is cellulose, the substance that makes up the cell wall of plant cells. Starches are also examples of polysaccharides, and these are stored in plants such as grains, corn and wheat.
All living organisms must obtain energy in order to survive, and most organisms rely on carbohydrates as energy sources. These molecules are made through the process of photosynthesis, and they store the sun's energy within them.
"If a scientist isolates genes for Hepatitus B antigens from a Hepatitus virus, then inserts them into a bacterial plasmid and replicates the bacteria in a fermenter, what product will be collected?"A. Transgenic bacterial plasmidsB. Hepatitus B frusesC. Hepatitus B vaccineD. Hepatitus resistant bacteria
Answers
If a scientist isolates genes for Hepatitus B antigens from a Hepatitus virus, then inserts them into a bacterial plasmid and replicates the bacteria in a fermenter, the product collected will be transgenic bacterial plasmids, inside the bacteria, in order to proove if the transgenic plasmid actually gives the bacteria resistance to the virus, it has to be grown in an infected medium.
The correct answer is option A.
Part 2
1. Go to Phet Reversible Reactions Simulation (click here).
2. Add in 5 of each A and B molecules
3. After observing for 10 seconds, what is happeningto both the A and B molecules? Other
observations?
Answers
It is observed that after adding 5 each to molecules A and B; of Phet Reversible Reactions that the equilibrium goes right, away from the reactant
However, on the other side, If we add product, equilibrium goes left, away from the product
This is because in reversible reactions, both forward and backward or reverse directions of the reaction usually occur at the same time.
What are reversible reactions?Reversible reactions can be defined as a type of chemical reaction in which the reactants form the products that; and in turn, react together to give the reactants back.
Generally, reversible reactions usually will reach an equilibrium point where the concentrations of the reactants and products will no longer change.
Please note that the " Phet " mentioned above means Physics Education Technology. It is a research based simulations for tutoring science subjects
So therefore, it is observed that after adding 5 each to molecules A and B; of Phet Reversible Reactions that the equilibrium goes right, away from the reactant
Complete question:
What happens when you add 5 each to molecules A and B in a reversible reaction?
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At what degree both North and South does air begin to sink back to the surface?
A. 30°
B. 45°
C. 50°
D. 60°
Answers
Given a polynucleotide sequence such as GAATTC, can you tell which is the 5' end? If not, what further information do you need to identify the ends?Chargaff's rule about base ratios states that in DNA, the percentages of A and T are essentially the same, as are those of G and C.You can't tell which end is the 5' end. You need to know which end has a phosphate group on the 5' carbon or which has a -OH group on the 3' carbon.In the cell cycle, DNA synthesis occurs during the S phase, between the G1 and G2 phases of interphase. DNA replication is therefore complete before the mitotic phase begins.
Answers
To determine the 5' end of a polynucleotide sequence, information about the presence of a phosphate group on the 5' carbon or -OH group on the 3' carbon is necessary. DNA replication takes place in the S phase of interphase, between G1 and G2 phases, and is finished before the mitotic phase.
The 5' and 3' ends of a polynucleotide sequence refer to the positions of the phosphate and hydroxyl groups on the sugar molecules of the nucleotides. Without additional information, it is not possible to determine the 5' end of a polynucleotide sequence such as GAATTC.
To identify the 5' end, one would need to know which end of the sequence has a phosphate group on the 5' carbon or which end has a -OH group on the 3' carbon. In the cell cycle, DNA replication occurs during the S phase, which takes place between the G1 and G2 phases of interphase. DNA replication is complete before the mitotic phase begins.
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Cells (biology): What are the steps of cellular respiration?
Answers
Glycolysis, pyruvate oxidation, TCA cycle, ETS
An {{c1::inversion}} has occured when part of a chromosome is reversed
Answers
An inversion is a type of chromosomal mutation where a segment of DNA is flipped in orientation, resulting in the reversal of the gene sequence. This can cause issues during meiosis and genetic recombination, leading to abnormal gametes and potential genetic disorders in offspring.
Inversions can be either pericentric, meaning they involve the centromere, or paracentric, meaning they do not involve the centromere. The effects of inversions depend on the size and location of the inverted segment, as well as any genes contained within it.
An inversion occurs when part of a chromosome is reversed. In this process, a segment of the chromosome breaks off, flips 180 degrees, and reattaches in the reversed orientation. This can lead to changes in the genetic information and may have various effects on an organism's phenotype.
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sublimation process diagram
Answers
Explanation:
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which of the following would not be considered a nontraditional sport
Answers
Answer:
theres no options..?
Explanation:
. . . . . . .
Question
Which formula represents a covalent compound?
Responses
MgS
H2O2
NaCl
CaO
Answers
The formula that represents a covalent compound is H₂O₂.
What are covalent compounds?Covalent compounds are the compounds having strong intra-molecular bonds. This is because the atoms within the covalent molecules are very tightly held together.
Covalent bonds form when two or more nonmetals combine. For example, both hydrogen and oxygen are nonmetals, and when they combine to make water, they do so by forming covalent bonds.
According to this question, hydrogen and oxygen are both non-metals, hence, when they combine to form hydrogen peroxide, a covalent bond is formed.
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Which blome could an animal who hibernates in
the winter to survive the cold live in?
Answers
Answer:
Tundra
Explanation:A tundra is mostly Antarctica or the Arctic or mostly an area that's covered with loads of ice and snow.Arctic tundra is a very cold, windy, and treeless biome that's snow-covered for much of the year.