Answer:
The more alcohol you drink, the higher your heart rate gets,
Explanation:
The more you drink, the faster your heart beats. A recent study confirmed that binge drinking and long-term heavy alcohol use are associated with different types of cardiac arrhythmia, especially sinus tachycardia.
If evolution is based upon there being genetic diversity between generations, how does the lack of genetic differences existing between daughter cells created via mitosis impact the theory of evolution
Answer:
See the answer below
Explanation:
If evolution is based upon genetic diversity, it means that evolution in organisms that only reproduce by mitotic division will depend largely on the frequency of random mutation of genes.
The only way that genetic diversity can occur between daughter cells formed from mitosis is if mutation takes place. Mutation general means a sudden change to the gene sequence of an organism.
Without mutation, evolution in mitotic organisms will be non-existence because there are no new genes or alleles being introduced into the gene pool.
Assume that a cell is carrying out its day-to-day activities. At one point, the nucleotides GAT are paired with the nucleotides CUA. This pairing occurred __________.
Answer:
Explanation:
Yes!
How does epithelial tissue respond to a bruise or wound?
Answer:
Epithelial tissue helps bruises and wounds by reducing the risk of infection.Explanation:
Plzzzzz help ASAP
Which step of desalination must be done before water is condensed and collected?
Water is heated until it evaporates.
Water is frozen, so it becomes ice.
Water is transported from one area to another area that has little water.
Water is collected and salt is allowed to settle at the bottom.
Answer:
Water is transported from one area to another area that has little water. Water is collected and salt allowed to settle at the bottom.
Explanation:
Desalination of water is a process of the removal of salts and minerals from the water. This process is used for the production of water suitable for human consumption or irrigation.
Natural desalination occurs trough the hydrologic cycle when seawater evaporates. On the other hand, manipulated desalinization is an energy expensive alternative to natural desalination.
Answer:
A. Water is heated until it evaporates.
Explanation:
Traditionally, the best way of taking salt out of water has been through vacuum distillation. The salt water is enclosed at a low pressure to reduce its boiling point, making it easier to vaporize to separate the salt from the water.
Which is one way that analyzing ice benefits scientists who study ancient climates?
Scientists can analyze frozen volcanic dust to help predict eruptions.
Scientists can drill deep into the ice to collect ice cores.
Scientists can use pollen grains in ice to make inferences about the c
Scientists can study tree rings in ice to learn more about past climates.
ate area
Answer:
Scientists can drill deep into the ice to collect ice cores.
Explanation:
Scientists can drill deep into the ice to collect ice cores as this method helps to find out the past properties of the atmosphere and how it acted in the past.
It also ensures and explains how the climate was when there were precipitation which includes snow, rain etc and also how the size of ice sheets and glaciers have changed in the past in response to different climate and different eras.
the person above is correct
Explanation:
Stem cell transplants may someday be used to treat Parkinson's disease. Researchers are hopeful that these cells would alleviate the symptoms of Parkinson's disease by
Answer:
Researchers are hopeful that these cells would alleviate the symptoms of Parkinson's disease by secreting the neurotransmitter dopamine.
Explanation:
Dopamine is a neurotransmitter released by the brain that plays a role in pain processing at various levels of the central nervous system. This includes the spinal cord, periaduectal gray matter, the thalamus, the basal ganglia, the insular cortex, and the cingulate cortex. Low dopamine levels are associated with the painful symptoms that frequently occur in Parkinson's disease. Parkinson's is generated from a neurodegenerative disorder that mainly affects dopaminergic neurons, responsible for producing and secreting dopamine within the brain. When these neurons degenerate, dopamine levels decrease and the consequences are tremor, muscle stiffness and difficulty making voluntary movements, among others. In Parkinson's disease, there is a loss of dopaminergic neurons and a potential treatment would be that the lost neurons could somehow be replaced. One possibility is to transplant stem cells that differentiate into dopamine-producing nerve cells.
What are gyres?
1.Large plants that move in circles in the ocean.
2.Large circulating parts of the ocean
3.Large animals in the ocean that move in circles in the ocean.
Answer:
A gyre is a circular ocean current formed by the Earth's wind patterns and the forces created by the rotation of the planet..
Explanation:
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Imagine that one of your parents had Huntington's disease. What is the probability that you, too, will someday manifest the disease? There is no cure for Huntington's. Would you want to be tested for the Huntington's allele? Why or why not?
Answer:
There is a 50% chance of getting Huntingdon's disease.
Explanation:
Assume the affected parent is Hh, where H is the Huntingdon's disease allele and h is the unaffected allele. One parent is unaffected, or hh. You have a 50% chance of getting the H allele from the affected parent.
If I had the choice to get tested, for Huntingdon's disease, I would do it. I would want to know so that I wouldn't live my life worrying about it everyday.
Huntington's disease is an inherited genetic disorder that affects the nervous system, leading to progressive loss of motor function, cognitive decline, and psychiatric symptoms.
How much chance that you would inherit the disease?If one of my parents had Huntington's disease, there is a 50% chance that I would have inherited the mutated gene responsible for the disease. This means that I would also have a 50% chance of developing Huntington's disease in the future.
The decision of whether or not to get tested for the Huntington's allele is a deeply personal one, and there are many factors to consider. On one hand, knowing whether or not I carry the gene would allow me to make informed decisions about my future, including family planning and career choices. It could also help me to prepare emotionally and psychologically for the possibility of developing the disease.
However, there are also potential downsides to genetic testing for Huntington's disease. If I were to test positive for the gene, it could lead to anxiety, depression, and social stigma.
Ultimately, the decision of whether or not to get tested for the Huntington's allele is a personal one that depends on many individual factors, including my age, family history, and personal beliefs.
While the possibility of developing Huntington's disease can be frightening, it is important to remember that there are many resources available to help individuals and families cope with the disease, including counseling, support groups, and medical care.
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describe some of the basic trends in hominid evolution (brain size, jaw size, language, and manufacturer tools) using at least five sentences.
which is a type of star system?
A. dim stars
B. galaxies
C. wobbling stars
D. globular clusters
Answer:
D) Globular Clusters
Explanation:
A star system or stellar system is a small number of stars which orbit each other, bound by gravitational attraction. A large number of stars bound by gravitation is generally called a star cluster but, broadly speaking, they are also star systems. A star cluster is a group of stars that share a common origin and are gravitationally bound for some length of time. The two basic categories of stellar clusters are open clusters, also known as galactic clusters, and globular clusters.
Globular clusters is a type of star system.
What is star system?A star system, also known as a stellar system, is a group of stars that circle each other and are held together by gravitational pull. A stellar cluster or galaxy is a huge group of stars that are gravitationally bonded together, however they are also known as star systems. Planetary systems, which comprise planets and other similar bodies, are not to be mistaken with star systems such as comets.What is globular clusters?Globular clusters are clumps of old stars that are firmly packed together. They have a roughly spherical form and contain hundreds of thousands, if not millions, of stars. Astronomers can use them to determine the age of the cosmos or the location of a galaxy's core by studying them.Hence, the correct option is D.
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About Galileo Galilei : Why was he allowed to serve his sentence from home?
Early in 1616, Galileo was accused of being a heretic, a person who opposed Church teachings. ... Galileo was sentenced to life imprisonment in 1633. Because of his age and poor health, he was allowed to serve his imprisonment under house arrest.
Explanation:
The highlighted structure contains part of the brain system that maintains cortical alertness. What is the name given to this brain system
Answer:
Reticular formation
Explanation:
The Reticular formation consists of nuclei which are connected together. They are found in the Brain Stem. The Brain stem and Reticular formation are also both found in the Medulla Oblongata.
They however contain rich volume of cells which helps in the cortical alertness and they also help in the control of the activities of the skeletal and some parts of the muscular system.
a) _____ is used to find the gene that codes for a protein by matching amino acid sequences to codons, mRNA to cDNA, and cDNA to natural DNA. (1 point) g
Answer:
mRNA
Explanation:
Messenger RNA (mRNA) is a single-strand RNA derived from the process of transcription, in which one strand of DNA serves as template to synthesize this molecule. The mRNA has an identical sequence to the gene, with the exception of thymine nucleotides that are replaced by uracils. During this process, the RNA polymerase synthesizes a precursor mRNA molecule (pre-mRNA), which contains both intronic and exonic regions. Subsequently, the introns are eliminated by RNA processing enzymes in a process known as RNA splicing, thereby resulting in a mature mRNA. Finally, this mature mRNA is decoded by the ribosome during the synthesis of proteins in a process named translation. The translation involves another type of RNA molecule: the transfer RNAs (tRNAs), which recognize codons in the mRNA and act as adaptors by the incorporation of specific amino acids in the protein sequence.
Answer:
mRNA is the answer
Explanation:
A.p.e.x.
USF The chromosomes of the species known as Vulcans together contain 24% adenine. Apply Chargaff’s rules to calculate the percentages of thymine, guanine, and cytosine bases in their genomes, respectively. Group of answer choices 26%, 24%, 26% 76%, 24%, 76% 24%, 26%, 26% 26%, 26%, 24% 24%, 52%, 52% Not enough information has been provided to calculate the other percentages. 24%, 24%, 24%
Answer:
Thymine = 26%,
Adenine = 26%
Guanine = 24%
Cytosine = 24%
Explanation:
Chargaff's stated that the DNA of any cell has the same content of purine (A and G) and pyrimidine (T and C) bases. In the DNA molecule, T pairs with A (T–A), and G pairs with C (G–C). In consequence, according to this base pair-rule, the amount of Thymine (T) should be equal to the Adenine (A), and the amount of Cytocine (C) should be equal to the Guanine (G).
In this example, the content of A is 26%, and thereby the amount of the remaining bases is: 48 % (26 + 26 = 52 >> 100 - 52 = 48), where C= 24% and G=24%.
In a DNA molecule, the proportion of Adenine equals the one of thymine, while the proportion of cytosine equals the one of guanine. The chromosomes contain 24% adenine, 24% thymine, 26% guanine, 26% cytosine.
----------------------------
We know that in a DNA molecule, adenine pairs thymine, and cytosine pairs guanine. So,
the percentage of thymine equals the percentage of adeninethe percentage of guanine equals the percentage of cytosinethe sum of all the percentages equals 100%In the exposed example, we know that the chromosome has 24% of adenine. So it must have 24% thymine as well.
24% + 24% = 48%
100% - 48% = 52% ⇒ This percentage corresponds to guanine and cyosine.
26% Guanine + 26% cytosine, because they must be in the same proportion.
The chromosomes of the species known as Vulcans together contain 24% adenine, 24% thymine, 26% guanine, 26% cytosine.
Options:
26%, 24%, 26% ⇒ NO
76%, 24%, 76% ⇒ NO
24%, 26%, 26% ⇒ YES
26%, 26%, 24% ⇒ NO
24%, 52%, 52% ⇒ NO
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You are interested in studying if scalloped alleles follow the expected Mendelian inheritance patterns. What crosses will best allow you to study the inheritance pattern from a single generation and why?
Answer:
Reciprocal crosses
Explanation:
Reciprocal cross is crossing in all possible ways. Such that a parent used as a male can be further used as a female while the parents used as a female can be used as a male. This cross helps to show if indeed the inheritance follows the simple mendelian pattern of inheritance if not the inheritance is somewhat complex and an allele of the gene has more domineering power over the other when used as a specific parents.
The first cross will be between the parental genotypes to obtain the first filial generation offspring. This crosses will be done on both ways
Example
AA × bb
Where AA is the female and bb is the male
bb × AA
Here bb has been used as female while AA is used as a male
If the offspring of the two crosses are the same there is no reciprocal difference and the pattern of inheritance is mendelian fashion if they are different there is reciprocal differences.
In the intrinsic pathway, the reaction begins with clotting factors from the _.
Answer:
Clotting factors are circulating in the blood.
Explanation:
In the intrinsic pathway, the body is responding intravascular damage through binding of platelets, exposure of chemicals or even collagen from endothelial membranes. The most of the clotting factors are synthesized by the liver and circulate around the blood stream until they are needed or until they are degraded based off their half lives.
When the platelets start to aggregate they release chemicals and have proteins that can attract the clotting factors. In the intrinsic pathway, clotting Factor XII starts off the cascade. Hope that helped :)
What can a line graph be used to do? Select the best answer.
O A. Identify positive correlation
B. Identify negative correlation
C. Make predictions
D. Make comparisons
Reset Selection
Answer:
From the choices listed I would say that the answer is (D) make comparisons.
Explanation:
Line graphs are used to track changes over short and long periods of time. Line graphs are used to compare changes over the same period of time for more than one group.
A line graph is used to make predictions. Thus, the correct option is C.
What is a line graph?A line graph may be defined as a kind of chart utilized to illustrate the information that altered over time.
Identification of positive correlation and negative correlation is done by using a scatter plot.
A Line graph is extremely an easy process to make predictions because it illustrates the alterations over a specific period of time.
Therefore, the correct option for this question is C.
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The “somatic” cells are different from the “gametes” in one specific way. What do somatic cells do that Gametes dont? A. Divide B. Get passed to offspring C.build the body D. Grow inflexible walls
Answer:
option B
Explanation:
Gametes are haploid because a sperm and an egg fuse during fertilization to create a new organism with diploid cells. Mutations in somatic cells can affect an individual organism, but they do not affect the offspring since they are not passed on during reproduction.
a. What are the two genotypes of the grandparents? ________ b. What is the genotype of Jane's husband? ________________ c. What are the chances that Peter is the carrier of the PKU allele that resulted in his having an affected son? _________%
Answer:
a. Rr, Rr
b. rr
c. 0% because its the women who transmits the disorder.
Explanation:
PKU allele is an autosomal recessive disorder which is caused by mutations in both alleles of gene for phenylalanine hydroxylase. Alleles are either dominant or recessive. When two alleles are identical means that mother and father cells are homoozygous recessive. They both are combining the same alleles causing it to have a higher chance of genetic disorder.
Jose Salazar has been hospitalized following a motor vehicle accident. He has several broken bones, including his left jaw, two ribs on the left side, and a compound fracture of his left leg. According to his medical record, he is 47 years old, his height is 5'9", and his weight is 171 pounds. During the course of his hospital stay, he was diagnosed with a heart arrhythmia. His current medications include lovastatin to lower his cholesterol, an MAO inhibitor to treat depression, and an analgesic to treat his pain. Mr. Salazar's wife also reports that he takes several herbal products including yohimbe, kava, valerian, and St. John's wort. Which herbal product taken by Mr. Salazar may be causing his heart arrhythmia?a. yohimbeb. kava kava onlyc. St. John's wortd. valerian onlye. both valerian and kava kava
Answer:
a. yohimbeb
Explanation:
Heart arrhythmia is a heart disease in which the heart does not work properly. The main cause of heart arrhythmia is yohimbeb which is used as a medicine for increasing sexual desires but this herbal product also has side effects such as causing heart problems such as heart arrhythmia and kidney diseases. So the Jose Salazar should avoid the consumption of yohimbeb in order to control the heart disease.
The nebular hypothesis suggest that our solar system evolved from a huge
Answer:
The correct answer is - Rotating Cloud.
Explanation:
According to the nebular hypothesis presented by the Swedish philosopher Emanuel Swedenborg in 1734 that says that the Sun and all the other planets of our Solar System evolved from a giant cloud of molecular gas and dust. This huge cloud could have been the result of a shock waves from a supernova or any passing star, but the end result was a gravitational collapse at the center of the cloud.
Thus, the correct answer is - our solar system evolved from a huge Rotating cloud.
4. In the background, the presence of naturally occurring enzymes in fruits and vegetables was discussed. Using your results from this exercise as a basis to guide your thoughts, do you think that cooked, frozen, or raw fruits and vegetables would contain the most active enzymes?
Answer:
The fruits inside do not have enzymes, but if our body when digesting them, if these fruits are cooked they are much easier to digest by our digestive enzymes and if they are raw, digestion will be more laborious since it will have to break more masses chemicals that were not destroyed by cooking.
Regarding freezing, it does not intervene in digestion.
Explanation:
The cooking of vegetables or fruits like meats generates that some chemical unions are destroyed, thus exposing the most internal structures in enzyme activity.
In Pennsylvania, wolves have been extinct for many years. They used to feed on white-tailed deer, but not that the wolves are gone, the population of white-tailed deer has exploded. This means that this community:______
a. Was under top down control
b. Was under bottom up control
c. Lacks a fundamental niche for wolves
d. Lacks a fundamental niche for deer
Answer:
The correct answer is a: The community was under top-down control
Explanation:
Top-down control refers to scenarios where superior predators control the structure and dynamic of an ecosystem. These systems are affected by the presence/absence of the superior predator influences all the lower links in the trophic chain.
In the exposed example wolves, that are considered to be the top predators, affected the white-tailed deer populations being the cause of its decrease. As wolves used to feed on white-tailed deer, they kept these populations under control, but once the wolves got extinct, the deer population increased again. Probably, this explosion in the deer´s population also affected its lower link in the trophic chain.
The central (Haversian) canal that runs through the core of each osteon is the site of ________. adipose tissue and nerve fibers cartilage and interstitial lamellae blood vessels yellow marrow and spicules
Answer:
Blood vessels and nerve fibers
Explanation:
The Haversian canal serves as the bone tissues and it runs through the core of each osteon. The osteon surrounds the Haversian canal and contain structures called lamellae.
These lamella are made largely of collagen fibers and also various network of rich blood vessels and cells which produces blood cells in the body. Nerve cells which helps in the relay of impulses are also present. The rich contents of the bone gives it its strength and durability.
Answer:
The correct answer is: blood vessels and nerve fibers.
Explanation:
Haversian Canals are a group of tubes that are located in the more peripheral region of the bone, known as the cortical bone. The cortical bone is hard and compact and is composed of several concentric layers of bone cells (osteocytes and osteoblasts) that circle around a haversian canal, which contains capillaries and nerve fibers. This structure is called an osteon.
Haversian Canals are very important for the correct functioning of the bone, as they give the cells their needed blood supply and innervation.
which question most closely relates to the fosters observation and the collective scientific data on forest
Answer:
The options are:
A. Did a lack of Rain cause the hemlocks to stop reproducing?
B. Are deer eating most of the young hemlocks?
C. Do the young hemlocks have a disease?
D. Why are there so many deer in the forest?
The answer is B. Are deer eating most of the young hemlocks?
Hemlocks are referred to as plants which are considered poisonous when eaten by animals. Since Deers are herbivorous and eats plants alone then the most suitable option will be B which talks about if the deers are eating most of the young hemlocks as a result of it being closely related to the relates to the fosters observation and the collective scientific data on forest.
Question 21 (5 points)
Which of the following terms describes a collection of hollow cells that implants on
the uterus wall after fertilization, but is not yet differentiated (in other words, all cells
are the same type of cell still)?
Fetus
Haploid
Mitosis
Blastocyst
Answer:
The answer is option D.
Blastocyst
Hope this helps
Answer:
Blastocyst
Explanation:
Once an egg is fertilized by a sperm, it begins to divide by mitosis into a 2, 4, and then 8 celled structure. Eventually, this large collection of cells keeps dividing and becomes a hallow collection of undifferentiated cells called a blastocyst. The blastocyst will implant on the wall of the uterus where it will begin to grow and develop during pregnancy into a fetus.
when enzymes in your body digest your food what type of biomacromolecule is at work
Answer:
Fat, starch, sugars and protein.
Explanation:
Enzymes break these biomacromolecule bcoz cells get energy by breaking them.
Answer: Protein.
Explanation:
Why are all food service workers required to understand and apply food safety knowledge?
Select one:
a. To prepare the best tasting food possible.
b. To prevent the spread of illnesses through food.
c. To reduce customer injury such as cuts and burns.
d. To reduce the amount of food thrown away due to spoilage.
Answer:
B.
Explanation:
Keeping and understanding food safety knowlege prevents the consumer from getting sick.
Caffeine prolongs and intensifies the effects of epinephrine. Which of the following potential mechanisms of action of caffeine is consistent with this effect?
a. inhibits cAMP phosphodiesterase, the enzyme that converts cAMP to AMP.
b. a competitive antagonist of cAMP binding to PKA.
c. stimulates phospholipase Cb.
d. inhibits sarcoplasmic/endoplasmic reticulum Ca 2 + - ATPase.
e. activates PKC.
Answer:
a. inhibits cAMP phosphodiesterase, the enzyme that converts cAMP to AMP.
Explanation:
The phosphodiesterases are a group of enzymes that are capable of breaking phosphodiester bonds such as those between nucleotides in nucleic acids. The Cyclic adenosine monophosphate (cAMP) is a second messenger involved in intracellular signaling pathways. This molecule (cAMP) is hydrolyzed by the cAMP-dependent phosphodiesterase, which catalyzes the enzymatic breakdown of phosphodiester bonds (i.e., hydrolyzing cAMP to 5-AMP). The cAMP levels are modulated by the balance between its generation and the degradation via cyclic nucleotide phosphodiesterase.
Blood is vital for transporting substances through the body. When a person bleeds, that person is hemorrhaging. Blood loss over 30% can be fatal if not replaced by a blood transfusion.
A. A person with type AB- blood could receive type B- blood, type A- blood, type AB- blood, or type O- blood.
B. A person with type O+ blood could receive type O+ blood or type O- blood.
C. A person with type A- blood could receive type A- blood or type O- blood.
D. A person with type B+ blood could receive type B+ blood, type B- blood, type O- blood, or type O+ blood.
Answer:
A and C
Explanation:
The signs for blood (positive or negative) from the donor always has to match the blood for the patient.
Type A- blood can only donate to A- blood or AB- blood.
Type B- blood can only donate to B- blood or AB- blood.
Type AB- blood can only donate to AB- blood.
Type O- blood can only donate to O- blood, AB- blood, A- blood, or B- blood.
Type A+ blood can only donate to A+ blood or AB+ blood.
Type B+ blood can only donate to B+ blood or AB+ blood.
Type AB+ blood can only donate to AB+ blood.
Type O+ blood can only donate to O+ blood, AB+ blood, A+ blood, or B+ blood.