Answer:
gulf stream
Explanation:
it transports warm water from the equator past the east coast of north america and across the atlantic to europe
The map of ocean currents shows that the surface ocean currents create loops called gyres. The Gulf stream current is a warm ocean current that flows completely around Earth.
What is gulf stream?Gulf stream is a strong ocean current bringing warm water into Atlantic ocean to Gulf of Mexico.
The Gulf Stream is in the western North Atlantic Ocean. It moves north with the coast of Florida and then moves eastward off of North Carolina, flowing northeast across the Atlantic.
Thus, the correct option is d.
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John is a 22-year-old professional skateboarder. He has recently fallen on his left shoulder which caused a severe dislocation of the joint. The clinician fears the impact and the dislocation may have caused damage to all or part of the brachial plexus. After performing a nerve conduction velocity test on Johnâs left arm, it was determined that the ulnar nerve was compromised. Which area of the brachial plexus was affected by the accident?
Answer:
The lower left area where the brachial plexus is, was affected in the axillary fossa.
Specifically in the area of the inferior nerve ramification, in the medial endings.
Explanation:
The brachial plexus is a nervous plexus that is classified into three nerve areas, the upper middle and lower areas, where the upper one faces the lateral nerve branches, the middle one to the posterior, and the lower one to the medial, within the medial nerves. is the ulnar nerve or the ulnar nerve that is the one that damaged John.
Explain how substitution, insertion, and deletion mutations are similar and different from one another.
Substitution:
Substitution is the switch of codons. A C could be switched to an A, but the original is now substituted for the new codon. This can change the amino acid present or it can be a silent mutation. If the stop codon is switched in, the protein will be cut short and the effects could be very serious.
Insertion:
Insertion is where base pairs are inserted into the DNA. This is different from substitution because nothing is getting switched out, just new ones are getting inserted. The original codons will still be present, just new ones are coming in. Insertions result in a frame-shift, which means everything after the mutation is shifted and nothing will be correct after this. Insertions are more harmful than substitution because it doesn't affect just one amino acid, but many.
Deletion:
Deletion is where some codons or DNA is deleted. This will result in everything after the mutation being incorrect and can cause drastic effects. Deletion is very similar to insertion because they both cause a frame-shift, but also very different because they do the opposite from one another. Deletion is also more harmful than substitution because of the frame-shift and the change in future amino acids.
Which type of stem cell is described below?
stem cells are available from a variety of sources, including blood from an umbilical cord, or cells in the
placenta, the bone marrow, and even human fat.
Answer:
Multipotent Stem Cells
Explanation
these are stem cells that can differentiate to multiple but limited cells / tissues
Select the correct answer.
Which type of energy is thermal energy a form of?
A.
chemical energy
B.
kinetic energy
C.
magnetic energy
D.
potential energy
Answer:
right answer is
B
Kinetic energy
Nucleic acids and carbohydrates are both types of what?
A. Macromolecules
B. Proteins
C. Elements
D. Atoms
SUBM
Based on the objective you should feel comfortable calculating expected genotype frequencies when given observed allele frequencies. You should also be able to compare expected genotype frequencies from HWE to observed frequencies and determine if evolution is occurring. Here's a sample problem. You can do this without a calculator! Let's take the noob gene, a gene with two known alleles that determines feather color in the eastern lark. The two alleles, let's call them delta and gamma, can be sequenced. In fact, looking at a population in southern GA, you discover that 60% of the alleles in the population are the delta allele. So question 1, what is the percentage of the gamma allele in the population
Answer:
40% is the percentage of the gamma allele in the population.
Explanation:
Available data:
Two alleles, delta and gamma60% of the alleles in the southern GA population are the delta alleleWhat is the percentage of the gamma allele in the population?
According to Hardy-Weinberg, the allelic frequencies in a locus are represented as p and q, referring to the allelic dominant or recessive forms. The genotypic frequencies after one generation are p² (Homozygous dominant), 2pq (Heterozygous), q² (Homozygous recessive). Populations in H-W equilibrium will get the same allelic frequencies generation after generation. The sum of these allelic frequencies equals 1, this is p + q = 1.
In the same way, the sum of genotypic frequencies equals 1, this is
p² + 2pq + q² = 1
Being
p the dominant allelic frequency, q the recessive allelic frequency, p² the homozygous dominant genotypic frequency q² the homozygous recessive genotypic frequency 2pq the heterozygous genotypic frequencyIf the percentage of delta allele in a population is 60%, this means that its frequency is 0.6. By clearing the equation p + q = 1, we can calculate the gamma allele frequency. This is:
p + q = 1
0.6 + q = 1
q = 1 - 0.6
q = 0.4
Then the percentage of gamma allele in the population is 40%.
We can also think about it like this:
If the sum of the allelic frequencies equals 1, then 1 is 100% of the allelic frequencies. And if the percentage of delta allele in a population is 60%, then 40% is the percentage of gamma allele.
How was the present-day theory of evolution developed?
Answer:
The theory of evolution by natural selection, first formulated in Darwin's book "On the Origin of Species" in 1859, is the process by which organisms change over time as a result of changes in heritable physical or behavioral traits.
Explanation:
Choose the correct definition and two examples of radiative energy.
radiative energy is energy in light. Sunlight carries this form of energy, as do other forms of light including X-rays and radio waves.
Chemical equilibrium results if____.
Answer:
forward reaction rate equals reverse reaction rate
Explanation:
According to the calendar, it has been about 14 days since the beginning of the last lunar
cycle. Usually, the moon is bright white, but today a dark red moon hangs in the night sky.
What are you witnessing?
A. a northern light
B. a solar eclipse
C. a lunar perihelion
D. a lunar eclipse
Why are tanning beds not safe
Answer:
skin damages.
Explanation:
it hads UVA and UBV rays which cost the skin to be damaged by the rays. it can also make you have skin cancer.
Why is carbon the element of life?
Answer:
the ability to form stable bonds
How N-formylmethionine (fMet) is only associated with the 5' AUG initiation codon and not with internal AUG codons, given that methionine in both cases in encoded by an AUG in the mRNA.
Answer:
Different transfer RNAs (tRNAs) selectively bind to N-terminal and internal AUG codons of bacterial polypeptides .
Explanation:
In prokaryotic organisms, N-formylmethionine (fMet) is coded by the start codon (AUG), thereby generating the most N-terminal residue of bacterial proteins. This residue (fMet) is a modified methionine amino acid that contains attached a formyl group to its amino group. Remarkably, it has been shown that formylmethionyl-tRNA only can bind to this initial AUG codon, while methionyl-tRNA binds to internal AUG codons.
Each phospholipid is made up of:
A. Two phosphate groups and one fatty acid chain.
B. A phosphate group and two fatty acid chains.
O
C. A phosphate group and a fatty acid chain.
O
D. Two phosphate groups and two fatty acid chains.
Answer:
The correct answer is B. A phosphate group and 2 fatty acid chains.
Explanation:
A P3 X
Each phospholipid is made up of a phosphate group and two fatty acid chains. The correct option is B.
What are phospholipids?Phospholipids are lipids that have two types of edges. It has a hydrophobic tail and a hydrophilic head. The plasma or cell membrane, according to the fluid mosaic model, comprises substances like proteins and phospholipids.
A phosphate head and a fatty acid (lipid) tail make up the phospholipid layer, also known as the phospholipid layer, which is formed by the phospholipid.
Small molecules like oxygen gas can diffuse through the phospholipid layer, which facilitates the passage of small molecules but not larger ones. Biological membranes are formed by two lipid layers, proteins, and glucans.
Therefore, the correct option is B. A phosphate group and two fatty acid chains.
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negatives about gypsy moths?
Answer:
Gypsy moths do not kill trees directly they defoliate them. Severe defoliation can add to other stresses such as weather extremes or human activities. This cumulative stress can leave trees vulnerable to disease or other pest infestation that can cause death.
Explanation:
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Answer:
The rise of the gypsy moth population will eventually kill many trees, as they won’t be able to perform photosynthesis. This event will negatively affect the lumber and construction industries, as well as the beauty of public and private landscapes.
Explanation:
PLATO
please send me labeled scorpion
H
Br
H
Br
H
Br
Br
H
What best describes these two molecules?
They are not isomers.
They are structural isomers.
They are geometric isomers.
They are both structural and geometric isomers.
Answer:
It's C
Explanation:
They are geometric isomers. Thus option C is the correct answer.
what is isomers ?Two chemical species with the same number and types of atoms but different configuration are called as isomers, the spontaneous process by which isomers are formed called isomerization.
This process is independent of bond energy of the configurations.
Different types of isomers are structural isomers, geometric isomers, stereoisomers, optical isomers.
The major type called structural Isomers where atoms and functional groups are differently joined with each other. For example, 1-fluoropropane and 2-fluoropropane positional change.
Another types is stereoisomers formed between atoms and functional groups with differential geometrical positioning.
This class include enantiomers which are non-superimposable mirror images of each other and have chiral centers. example are D-threose and D-erythrose.
In stereoisomers, the class of diastereomers have different physical properties and reactivities.
Thus option C is the correct answer.
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Hamilton’s rule states that:
a. altruism evolves only among nonkin.
b. selfish genes swamp altruistic genes.
c. altruistic behavior is favored if the cost to the actor is less than the benefit to the recipient, devalued by the degree of relatedness.
d. altruistic behavior is favored if the benefits to the actor are greater than the costs to the recipients, devalued by their degree of relatedness.
Answer:
The correct answer is option D.
Explanation:
Hamilton rules state that any trait that helps in benefiting others, B, is multiplied by genetic relatedness, R, which is greater than cot to self, C, it is favored by the process of natural selection.
As indicated by Hamilton's rule, the kin selection makes qualities increment in recurrence when the hereditary relatedness of a beneficiary to an actor multiplied by the advantage to the beneficiary is more noteworthy than the regenerative expense to the actor.
Thus, the correct answer is option D.
Why are fats considered as high energy compounds?
What is the function of mRNA?
What is the general formula for amino acids?
Answer:
1. Fats contain mostly C-H bonds, it has less oxygen therefore making it a high energy compound
2. mRNA plays a vital role in protein synthesis. It's a single stranded RNA molecule that contains genetic information that can be taken outside the nucleus (unlike DNA which cannot leave the nucleus). Its created during transcrption, and is used during translation to create proteins
3. (Look at image)
1. The organic molecules that contain esters of fatty acids and a mixture of compounds are called fats. They provide energy to the body for functioning. They provide slow energy but the most efficient energy.
The amount of calories supplied by fats is twice as compared to carbohydrates and proteins. The excess of fats is stored in the body for future purposes.
2. mRNA is a type of RNA and plays a vital role in the process of translation. It is a single-stranded molecule that contains genetic information transcripted from DNA and is transported out from the nucleus into the cytoplasm.
The main function of mRNA is in protein synthesis. It helps in the formation of amino acid sequence that undergoes modification to form proteins.
3. The general formula of amino acid is [tex]\rm R-CH(NH_{2})-COOH[/tex].
The side chains of different amino acids vary accordingly. The structure consists of a carboxylic group along with an amino group and an organic side chain.
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ASAP PLEASE HELPP
In a DNA strand with the sequence of C-G-G-T-A-G, the letters represent different...
A.) Monosaccharides
B.) Amino Acids
C.) Nitrogenous Bases
D.) Fatty Acids.
Answer:
C) nitrogenous bases
I think its C since the rest are types of molecules bigger than DNA
When jared gets to work, he looks at the latest data on wind speed, temperature, and humidity. Then, he uses a computer model to help him predict where storms may occur. In what field of earth science does jared work?
A.astronomy
B.meteorology
C.environmental science
D.geology
Answer:
B. meteorology
Explanation:
Someone who predicts weather based on patterns, models, and current atmospheric conditions is a meteorologist.
╭☞ When jared gets to work, he looks at the latest data on wind speed, temperature, and humidity. Then, he uses a computer model to help him predict where storms may occur. In what field of earth science does jared work?
ANSWER:╭☞ B. meteorology
Explanation: Because meteorology is a branch of the atmospheric sciences that includes atmospheric chemistry and atmospheric physics, with a major focus on weather forecasting. like your question.– Meteorologists are scientists who study and work in the field of meteorology.
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___________
#KeepInMind
The goal of applied behavior analysis is to __________.
Answer:
To establish and enhance socially important behaviors.
Explanation:
This is a form of therapy that helps individuals improve on certain important behaviors which affects our daily life. We are likely to socialize and it’s imperative to have the necessarily social skills or behavior.These behaviors include punctuality,social, communication and learning skills etc.
The main aim of applied behavior analysis is to establish and enhance socially important behaviors.
One element found in all living and dead organisms is ______.
Answer:
hydrozen............
......
i think!b..
Is it important before a blood transfusion to know blood types? Why? What are the benefits or consequences?
Answer:
It is extremely important to know all types of blood because if you donate the wrong type of blood to another person, he/she will get sick.
Explanation:
Hemolytic transfusion reactions can cause the most serious problems, but these are rare. These reactions can occur when your ABO or Rh blood type and that of the transfused blood do not match. If this happens, your immune system attacks the transfused red blood cells. This can be extremely life-threatening.
Pigment of chicken feathers is regulated by two genes, the gene for feather pigment C, and a gene that inhibits pigment production, I. A mother chicken, who is heterozygous for gene C, and heterozygous for gene I, is crossed with a father chicken, who is homozygous recessive for the pigment gene, and heterozygous for gene.
1) What are the potential haplotypes of the gametes produced by the mother for these two genes?
2) What are the potential haplotypes of the gametes produced by the father for these two gametes?
3) What is the probability of one of the offspring of these two chickens having pigmented feathers?
4) In a population of 100 chickens, produced from the same parents, how many chickens would you expect to have white feathers?
Answer:
(1) CI Ci cI ci
(2) CI Ci
(3) 25
(4) 75
Explanation:
Mother is in this case is heterozygous for C & I, genotype of mother would be : CcIi
Father is on other hand is homozygous for C (dominant) and heterozygous for I, genotype : CCIi
1. Gametes produced by the mother will be:
CI Ci cI ci by the combinantion of C, I, c, and i alelles present in mothers genotype.
2. Gametes produced by the father :
CI Ci by the combinantion of alleles present i genotype of father CCIi
3. probability of one of the offspring of these two chickens having pigmented feathers:
2/8 × 100 = 25% ( punnet is attached)
4. chicken with white feather in population of 100 chickens:
probability of being white × 100
probability of being white : 1 - 2/8
thus, (1-2/8) × 100 = 6/8 × 100
= 75%
Which types of mutation are most damaging to an organism?
a) Substitution & Deletion
b) Deletion & Insertion
c) Insertion & Substitution
[tex]answer \\ = deletion \: and \: insertion \\ explanation \\ insertion \: and \: deletion \: results \: in \: a \: \\ frame \: shift \: that \: changes \: the \: \\ reading \: of \: subsequent \: codons \: and \: \\ therefore \: alters \: the \: entire \: amino \: \\ acid \: sequence \: that \: follows \: the \: \\ mutation ,insertion \: and \: deletions \: \\ are \: usually \: more \: harmful \: than \\ a \: substitution \: in \: which \: a \: single \\ amino \: acid \: is \: altered. \\ hope \: it \: helps[/tex]
The following are examples of characteristics that can be inherited except
(a)intelligence (b) complexion (C) type of blood (d) shape of head (e) sex of the child
Answer:
sex of the child
Explanation:
I need to figure out the structure of an unknown organism and what the main type of cell it is by only knowing: Organism’s cell are able to move Internal structures appears to be made of protein fibers Internal structures protein fibers measured 7.0 nanometers diameter Internal structures protein fiber appears to be two strands intertwined with each others
Answer:
the structure: microfilaments or actin filamentsthe main type of cell: eukaryoticExplanation:
In eukaryotic cells, the cytoskeleton is composed of three well defined filamentous structures: microtubules, microfilaments, and intermediate filaments. Each of these filamentous structures is a polymer of proteinic subunits united by weak, not covalent connections.
The microfilaments are the thinnest of the three structures. They have a diameter of 7 nanometers and are composed of many proteinic monomers united. This monomeric protein is called actin. Many monomers get combined to form a structure that assembles a double helix.
Due to the fact that these microfilaments are made of actin monomers, they are also known as actin filaments.
Actin filaments have directionality which means that their extremes have different structures.
Microfilaments interact with myosin filaments. These are associated with transmembrane proteins that have one domain in the cytosol and another in the cell exterior, therefore they participate in the processes of cell mobility.
Diffusion is a passive process that accounts for the movement of respiratory gases across the capillary membranes of alveoli.
True
False
Answer:
True
Explanation:
Diffusion is a passive process (no energy required) in which the substance such as liquid and gases moves from an area of high concentration to an area of low concentration.
During respiration, carbon dioxide diffuses from the blood into the alveoli and oxygen diffuses from alveoli to blood across the respiratory membrane. The partial pressure of oxygen is low in the blood of the pulmonary capillaries and high in the alveoli. so diffusion allow movement of oxygen across the respiratory membrane from the alveoli into the blood.
Hence, the given statement is true.
Name 3 hormones that have a direct impact on calcium metabolism relating to the skeletal system
Answer:
Three major hormones (PTH, vitamin D, and calcitonin) interact to maintain a constant concentration of calcium, despite variations in intake and excretion.
Explanation:
The second major hormone involved in the regulation of calcium metabolism and skeletal remodeling is vitamin D, which includes cholecalciferol (vitamin D3) of animal origin, as well as ergocalciferol (vitamin D2) of plant origin.
