Answer:
Allele frequencies
Explanation:
The only component that is transmitted from generation to generation is the genetic material (genes), the fact that an individual leaves more descendants implies that their genetic variants (alleles) will be more represented in the next generation. The frequencies of the different alleles will change from one generation to another, and this change will be irreversible when the set of genes in the population is considered, since it is highly unlikely that a previous configuration will be returned in all gene variants. Hence, from a population point of view, evolution is ultimately a cumulative and irreversible change in the proportions of different gene variants in populations. The agents that change the allele (or gene) frequencies of populations, that is, factors of evolution, are mutation, genetic drift, migration, and natural selection. Mutation is a factor that increases genetic diversity. Natural selection is the process by which the gene frequencies involved with certain traits vary from generation to generation, since some variants of the trait have a greater capacity than others to survive and produce offspring. The mutation rate of a gene or DNA sequence is the frequency at which new mutations occur in that gene or sequence in each generation. In each generation there is a gene raffle during the transmission of gametes from parents to children which is known as genetic drift. In the absence of gene flow, gene drift will also lead to local differences in allele frequencies.
them 261.25mg every 6 hours.
Part F: Section 1: Practice problems: Be sure
to show all your work including the units to
receive points.
1. A 25 lb. infant is prescribed medication A. The
recommended dose is 25 mg/kg every 6 hours.
What is the dose that should be given to this
infant?
Ih natient is nrescribed medication B The
Answer:
100 mg/kg/day.
Explanation:
The recommended dose of medication A is 25 mg/kg and given to the infant after every 6 hours so 100 mg/kg of medication A is given to the infant per day. The medication A is given in small doses not as a whole at one time because it cause problems in the infants instead of treatment. There is no need for medication B if the medication A works effectively on the infant so the per day dose of medication A is 100 mg/kg/
A wave has a frequency of 5Hz and a wave speed of 20m/s, what is the wavelength?
Answer:
4v/f
Explanation:
wavelength = wave velocity/frequency
What is the difference between a haploid, diploid, and zygote?
Answer:
[tex]\color{Blue}\huge\boxed{Answer} [/tex]
Haploid" refers to any cell that has 23 chromosomes (half of the total 46). "Gametes" are specifically sex cells that have 23 chromosomes. "Diploid" refers to any cell that has all 46 chromosomes. "Zygote" is the result of two gamete (haploid) cells fusing, and becoming a diploid cell.
Haploid means n, Diploid means 2n, while zygote is the fusion of two gametes that possess a nature of 2n.
What do you mean by Gametes?A Gamete may be defined as a cell containing only one set of dissimilar chromosomes, or half the genetic material necessary to form a complete organism.
Haploid is the quality of a cell or organism having a single set of chromosomes. A Diploid is a cell or organism that has paired chromosomes, one from each parent. In the case of humans, the haploid number is equal to 23, while the diploid number is equal to 46. A zygote is the fusion of two gametes that possess a nature of 2n, which is equal to 46.
Therefore, Haploid means n, Diploid means 2n, while zygote is the fusion of two gametes that possess a nature of 2n.
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Identify the structure of the human heart described as the main vessel in the arterial network that conveys oxygen-rich blood from the heart to all parts of the body except the lungs. Question 34 options:
aorta
atrium
coronary artery
pulmonary artery
Answer:
the answer is A:aorta
Explanation:
I took the k12 quiz and got 100%
Which measure would be MOST effective in increasing the human population's immunity against contagious diseases?
A. Getting vaccinated against contagious diseases
B. Treating the first person infected with the contagious disease
C. Isolating the first person infected with the contagious disease
D. Distributing antibiotics in the community to avoid the contagious disease
The measure that would be most effective in increasing the human population's immunity against contagious diseases is getting vaccinated against contagious diseases, which is option A.
What are contagious diseases?The most effective measure for increasing the human population's immunity against contagious diseases is getting vaccinated against them. Vaccines are designed to stimulate the immune system to produce a response against specific diseases without causing the disease itself. When people get vaccinated, their immune systems are able to recognize and fight off the disease if they come into contact with it in the future. Vaccination is a safe and effective way to prevent the spread of contagious diseases and protect individuals and the community as a whole.
Hence, the measure that would be most effective in increasing the human population's immunity against contagious diseases is getting vaccinated against contagious diseases, which is option A.
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10 Claims • Evidence • Reasoning What
would happen if meiosis did not occur?
State your claim. Summarize evidence
to support this claim and explain your
reasoning
Answer:
The baby would have another chromsome or 1 less. They wouldnt be normal, they would be different from the others. Ive studied this before and I know.
Explanation:
Name given to bacteria that do not require oxygen, but neither are they killed in
its presence.
Answer: Anaerobes
I hope this helps, I'm currently learning the same thing.
A rooster with gray feathers is mated with a hen of the same phenotype. Among their offspring, some chicks are gray (BW), some of them are black (BB), and some of them are White (WW). What offspring would you predict from the mating of a gray rooster and a white hen?
Answer:
BW | BB
WW | BW
Explanation:
im doing the best i can do lemme kno if its wrong
A ____________ is a series of nucleotides that encodes a protein product. This coding DNA may have different forms, or varieties, called ____________ . An individual with two different versions of a gene is genetically ____________ . In traits with a simple pattern of inheritance, only the trait conferred by the ____________ form of the gene will be visible. The other form of the gene is ____________ : it confers a trait that is only visible when the individual is genetically ____________ , or has two identical copies of the gene.
Answer:
Gene; alleles; heterozygous; dominant; recessive; homo-zygous.
Explanation:
Genetics can be defined as the scientific study of hereditary in living organisms such as humans, animals and plants.
A nucleotide can be defined as an organic molecule which forms the building block of nucleic acid such as deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
Basically, nucleotide comprises of the following parts;
1. Nitrogenous base: this includes adenine (A), thymine (T), guanine (G), and cytosine (C) which are mainly found in the DNA while adenine (A), guanine (G), uracil (U) and cytosine (C) are found in the RNA.
2. A phosphate group.
3. A penrose sugar: it is either deoxyribose in DNA or ribose in RNA.
The two parts or chemical components of a nucleotide which do not change throughout the structure of DNA are;
I. Five-Carbon Sugar also known as deoxyribose and it has hydrogen on its second carbon.
II. Phosphate: this is the structural backbone that provides support to DNA.
Filling up the blanks in the question, we have;
A gene is a series of nucleotides that encodes a protein product. This coding DNA may have different forms, or varieties, called alleles. An individual with two different versions of a gene is genetically heterozygous. In traits with a simple pattern of inheritance, only the trait conferred by the dominant form of the gene will be visible. The other form of the gene is recessive: it confers a trait that is only visible when the individual is genetically homo-zygous, or has two identical copies of the gene.
what are the two types of hair
Explanation:
Vellus hair is the short, fine, almost invisible hair that grows on much of your body, while terminal hair is thicker and longer and grows in places like your scalp etc
How do stalactites and stalagmites form? Select both correct processes. View Available Hint(s) Select both correct processes. Stalagmites form on the ceiling when water seeps through the ceiling and deposits calcite. Eventually a soda straw develops, which develops into a stalagmite after many more depositions of calcite. Stalagmites form when calcite-rich water falls to the floor from the ceiling, splattering minute amounts of calcite on the floor. Eventually, a soda straw forms, and after many more such depositions, a stalagmite begins to take shape. Stalactites form when calcite-rich water falls to the floor from the ceiling, splattering minute amounts of calcite on the floor. After many such depositions, a stalactite begins to take shape. Stalactites form on the ceiling when water seeps through the ceiling and deposits calcite. Eventually a soda straw develops, which develops into a stalactite after many more depositions of calcite. Stalagmites form when calcite-rich water falls to the floor from the ceiling, splattering minute amounts of calcite on the floor. After many such depositions, a stalagmite begins to take shape.
Answer:
Stalactites form on the ceiling when water seeps through the ceiling and deposits calcite. Eventually a soda straw develops, which develops into a stalactite after many more depositions of calcite.
Stalagmites form when calcite-rich water falls to the floor from the ceiling, splattering minute amounts of calcite on the floor. After many such depositions, a stalagmite begins to take shape.
Explanation:
In general, we can say that stalactites form on the ceiling of a cave and grow towards the floor, while stalagmites form on the floor and grow towards the ceiling.
More fully, we can say that a stalactite forms when a quantity of water rich in calcite flows through the fissures of a rocky soil and infiltrates the roof of a cave where it also flows, due to the action of gravity. However, this drop of water and calcite does not fall on the cave floor and gets stuck in the ceiling. Over time, the water in this drop will evaporate, but the calcite will sediment in the shape of a ring, still attached to the cave ceiling. This process is repeated countless times, until a hollow calcite tube, called straw, is created. Over time this Straw will start to accumulate sediment and will clog. This promotes a modification of its shape, which changes from a tube to an inverted cone, with a point facing the cave floor. At that point the stalactite is formed.
Stalagmite occurs when the drop of water and calcite falls on the floor of the cave and likewise, the water in the drop will evaporate and the calcite will settle. The more drops that undergo this same process, the calcite sediments accumulate, but this time, they will not form a hollow tube, but a solid tube. This is how stalagmite is formed.
The formation of stalactites and stalagmite lasts for many years and when a stalactite meets a stalagmite, it can form a single structure, called a column.
The calcium rich water gets deposited on the roof and also get deposited on the floor of the caves. This calcite deposition form ring like structures.
The correct answer is:
Stalactites form on the roof when water flows through the roof and sediments calcite. Eventually, a soda straw forms, that grows into a stalactite after many more accumulations of calcite.Stalagmites form when calcite-rich water falls on the ground from the roof, dispersing little amount of calcite on the ground. After many such depositions, a stalagmite starts to take shape.This can be explained as:
Stalactite grows on the ceiling towards the floor while the stalagmite form on the floor and form the structure in an upwards direction.When the roof caves get infiltrated by the calcium-rich water the stalactite is formed.The calcite water gets accumulated over and over and a ring is formed.This tubular structure is called straw.When the calcite water drops on the floor of the cave then the water will evaporate leaving the calcite behind.Over time, this calcite will sediment and will form a solid structure.Therefore, this is how stalagmite and stalactite are formed.
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Adenine is the last nucleotide at the 3' end of one strand of DNA. It is base-paired with thymine on the other DNA strand. Which of the following statements about these nucleotides is FALSE? If the adenine has an unlinked 3' hydroxyl group, then the thymine must have an unlinked 5' phosphate group The adenine and the thymine are each bonded to the previous nucleotide in the strand by a phosphodiester bond The two nucleotides are located on DNA strands that are parallel to each other There are two hydrogen bonds between the adenine and thymine nitrogenous bases.
Answer:
The two nucleotides are located on DNA strands that are parallel to each other
Explanation:
Deoxyribonucleic acid, commonly known as DNA, is one of the two types of nucleic acids. It is a molecule composed of a nitrogenous base, pentose sugar and a phosphate group. According to the information given in this question, Adenine is the last nucleotide at the 3' end of one strand of DNA. The following are factual about the nucleotide;
- Since DNA is a double-stranded molecule, the Adenine nucleotide will be base-paired with Thymine nucleotide (complementary base pairing) on the other DNA strand.
- Since complementary DNA strands are opposite to one another, this means that if the adenine has an unlinked 3' hydroxyl group, then the thymine must have an unlinked 5' phosphate group.
- Nucleotides in a DNA strand are joined to one another via a covalent bond called PHOSPHODIESTER BOND. Hence, the adenine and the thymine are each bonded to the previous nucleotide in the strand by a phosphodiester bond.
- In the complementary base pairing between two nucleotide bases, there are two hydrogen bonds between the adenine and thymine nitrogenous bases i.e. A=T.
- DNA strands that make up a molecule are complementary and opposite to one another, hence, they are said to be ANTIPARALLEL.
What other traits are highly variable like human skin color ?
Multiple Choice
Which of the following is a good source of DNA, useful in determining identity in a forensic case
medical records
O teeth and dental records
O laundered clothing
O x-rays of the corpse
Which of these happens to astronauts in space without the pull of gravity?
A
Their vertebrae spread out.
B
They cannot eat solid food.
C
They shrink a few inches.
D
Their hair all falls out.
Answer:A
Explanation: I looked it up
Astronaut's vertebrae spread out in space without the pull of gravity.
What do you mean by pull of gravity?Gravity is a force that attracts all objects towards each other – every object with mass pulls on every other object with mass. When a person jumps off a chair, the person is attracted to the Earth and the Earth is attracted to the person.
The average gravitational pull of the Earth is 9.8 meters per second squared (m/s2). The Earth is made of different substances like air, rock, and water. These substances have a different amount of mass in a certain amount of space (density).
The measure of the pull of gravity on an object is called weight. For an object to have weight it must have mass. Weight can be calculated on Earth by multiplying the mass of an object in kilograms by the acceleration of gravity, which is 9.8 m/s2.
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YO IF OUR FINGERS HAVE FINGER TIPS AND OUT TOES DONT HAVE TOE TIPS DEN HOW CAN BE TIP TOE
Answer:
I don't know like what does it basically mean??
Answer:
HUH???? wdym
?
Summarize symbiosis.
Answer:
Symbiosis is a close relationship between two species in which at least one species benefits. Mutualism is a symbiotic relationship in which both species benefit. Commensalism is a symbiotic relationship in which one species benefits while the other species is not affected.
In which part of the water cycle is water getting the MOST energy from the sun?
Answer:
Evaporation
Explanation:
Cause then sun evaporates the water and turns them to water vapor which turns into clouds which then the clouds release the water if there is to much water in them and then the cycle keeps on going on and on
:D
what are the advantages and disdadvantages of dams that are changing the flow of water?
Explanation:
Advantages :
1}These are the main source of power generation.
2}These projects control the floods because water can be stored in them. These projects have converted many, 'rivers of sorrows' into 'rivers of boon'.
3}These projects are the main source of irrigation and also help in conserving soil.
Disadvantages:
1}Dams also fragment rivers making it difficult for aquatic fauna to migrate for spawning, i.e, to produce eggs.
2}It resulted in the displacement of local communities.
3}The multipurpose projects induced earthquakes, caused waterborne diseases.
Just tell me which one is the DNA and Spindel.
Green or Blue
Which evidence supports the theory of ocean floor spreading?
A) The rocks of the ocean floor and the continents have similar origins.
B) In the ocean floor, rocks near the mid-ocean ridge are cooler than rocks near the continents.
C) The pattern of magnetic orientation of rocks
is similar on both sides of the mid-ocean ridge
D) The density of oceanic crust is greater than the density of continental crust.
Answer:
C
Explanation:
Abundant evidence supports the major contentions of the seafloor-spreading theory. First, samples of the deep ocean floor show that basaltic oceanic crust and overlying sediment become progressively younger as the mid-ocean ridge is approached, and the sediment cover is thinner near the ridge.
The evidence supports the theory of ocean floor spreading which is the pattern of magnetic orientation of rocks and is similar on both sides of the mid-ocean ridge.
The theory of ocean floor spreading was formulated in 1960 by Harry Hess after studying different ocean floor patterns and formation.
The oceanic crust forms along submarine mountain zones involves the formation of oceanic crust along mid-ocean ridges which then later spread out to other areas. The farther the oceanic seafloor from the mid-ocean ridges , the older they are.
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Examine the weather map.
What does the symbol indicated by the arrows most
likely represent?
O a hurricane
O low pressure
Seattle
73/53
Billings
87159
H
Minneapolis
82/59
Detroit
New York
88/65 80/1
Chicago
87165 Washington
DC
86/70
O high pressure
O high temperatures
San Francisco
75/55
Denver
89/60
Houston
91/76
Atlanta
9271
H
Miami
93/76
Mark this and return
Save and Exit
Next
Sub
Answer:
High pressure
Explanation:
Based on the weather map, the arrows most likely represent a high pressure.
What is pressure?Pressure can be defined as a measure of the force exerted per unit area of an object or physical body. Also, atmospheric (air) pressure is usually measured in Pascal or atm.
The types of pressure.In Geography, there are different types of pressure and these include the following:
Hydrostatic pressureOsmotic pressure Filtration pressureAtmospheric (air) pressureBased on the weather map, the arrows most likely represent a high pressure of 82/59 in Minneapolis and 91/76 in Houston respectively.
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One autumn, a beech seed blows into a sunny meadow. Following a cold, wet winter, it sprouts. The seedling grows into a sapling. The sapling grows into a taller tree. After several years, it grows lateral branches. Each spring, these leaf, making a shady, cool space under the tree. Over the years, leaf litter decays, forming deep, rich soil. Nevertheless, over time the population of meadow grass under the tree declines. What limiting factor has affected the grass's growth?
Answer:
Accumulation of waste products.
Explanation:
The accumulation of the waste products under the tree is the limit factors that affects the growth of the grass. The accumulation of the waste products proposes that the molecules are damaged by the oxidation process and they are accumulated on the soil.
The leaves of the beech tree shades and falls on the ground and it decays there forming a rich soil. It covers the grassland nearby. Also the beech tree branches out making a small canopy over the grassland. So sunlight is prevent to reach the ground. This limits the growth of the meadows and thus the population of the meadow grass is seen to decline under the tree.
Which questions are statistical?
Select EACH correct answer.
Select 3 correct answer(s)
What do second graders like to do on rainy days?
Do you like to read on a rainy day?
How many movies typically sell out on rainy days at each movie theater in a city?
How many inches of rain did each county get in Florida in July?
u
How many inches of rain fell at the local airport yesterday?
Answer:
The first, third, and fourth one
Explanation:
statistical question is a question that can be answered by collecting data that vary
What is Florida’s state tree (don’t search guess)
Sabal Palm.
I used to live in Florida so hopefully I’m correct.
Answer:
A Peach Tree
Explanation:
They have a Peach Tree on there state sign
DNA is in what form during interphase?
Answer:
During interphase (1), chromatin is in its least condensed state and appears loosely distributed throughout the nucleus. Chromatin condensation begins during prophase (2) and chromosomes become visible. Chromosomes remain condensed throughout the various stages of mitosis (2-5).
DNA is in form during interphase During interphase, the cell DNA isn't condensed and is loosely distributed.
What happens during interphase?A stain for heterochromatin (which shows the placement of chromosomes) indicates this large distribution of chromatin. The equal stain additionally indicates the organized, aligned shape of the chromosomes in the course of mitosis.
Nuclear DNA remains in a semi-condensed chromatin structure throughout the interphase. During the S phase, DNA replication results in the creation of identical pairs of DNA molecules, known as sister chromatids, which are tightly linked to the centromeric region.
During the S phase, the centrosome is duplicated.
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Which of the following would be the best description of the atmosphere? Please!
Answer: Layers of gases surrounding earth
Explanation:
Explanation:
The answer is D. Layer of gases that surround the Earth.
i don’t get how to do this part lol i’m slow
what are the two large lightweight organs of the respiratory system?
Answer:
Pleura and Bronchi
hi please help i’ll give brainliest
Answer:
B
since the moon is in front of the sun and infront of the earth it casts a shadow