Answer:
159.01 mmHg
Explanation:
position of Heart = 2m below the top of the head given that the neck is fully extended
Determine the minimum diastolic pressure
Minimum diastolic Pressure = 1060 kg/m^3 * 10 m/s^2 * 2m
= 21200 kg/m^2
convert the value to Pa
21200 kg/m^2 = 21200 Pa
( 1 pa = 0.00750062 mmHg )
Therefore : minimum diastolic pressure = 21200 * 0.00750062 = 159.01 mmHg
The minimum diastolic pressure that a giraffe must have is 150 mmHg
Diastolic Blood pressureDiastolic Blood pressure is the pressure on the walls of your arteries between heartbeats, that is when the heart is resting.
The minimum diastolic diastolic blood pressure = absolute minimum blood pressure a giraffe could have at the very top of its head.Pressure formulaP = hpg
where;
P = pressure
h = height difference
p = density
g = acceleration due to gravity
Density of blood = 1000 kg/m^3
h =2.0 m
g = 10 m/s^2
Pressure = 1000 × 2.0 × 10
Pressure = 20000 Pascal or 20 kpa
Converting to mmHg1 kpa = 7.50 mmHg
20 kpa = 20 × 7.50
Pressure = 150 mmHg
Therefore, the minimum diastolic pressure that a giraffe must have is 150 mmHg
Learn more about diastolic blood pressure at: https://brainly.com/question/14661197
3. A bacterial isolate from a urine specimen was grown in culture, Gram stained, and then tested for its ability to ferment sugars and hydrolyze various subtrates. What approach to bacterial identification is this an example of
Answer:
Phenotypic approach for bacterial identification
Explanation:
Bacterial identification can be done by conventional methods, which are based on phenotypical characteristics. These methods are much affordable and reasonable.
Phenotypical identification is based on bacteria´s observable characteristics, such as their morphology, development, and biochemical/metabolic properties.
It is important to consider that these methods do not provide absolute certainty. They can only indicate the genera or species to which the bacteria under study may belong.
Some primary evidence is usually used for fast bacteria identification:
Gram staining, morphology, growth at different media or different incubation atmospheres, glucose fermentation, spores production, motion, aerobiosis/anaerobiosis, among others.Knowing that the bacteria in the exposed example was isolated and grown in culture, then Gram-stained and tested for biochemical reaction, we can assume that the approach for its identification is phenotypic.
In a certain population, the allele causing sickle cell anemia has a frequency of 0.2. If the population is in genetic equilibrium for this allele, what fraction of the population would be heterozygous for this gene
Answer:
32% population would be heterozygous for this gene.
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
Which of the following is a disadvantage of geothermal energy?
Answer:
B
Explanation:
The collection process of geothermal energy itself creates large amounts of pollution which damages the environment - especially toxicity in water.
Answer:
B. Collecting it damages the environment.
A scientist is tracking an object orbiting the Sun that is found between Mars and Jupiter. Which additional feature can
be used to determine the object is an asteroid?
O produces a coma
O has an irregular shape
O has a tail of ice and dust
O produces a streak of light
Answer:
The correct answer is actually B. Has an irregular shape.
There is a Y chromosome gene in humans that has two alleles influencing hair growth on the pinna (external ear). One allele causes very hairy ears. The phenotypic effect of the other allele is to not have hairy ears. A man with hairy ears and a woman without hairy ears are starting a family. What is the probability their first child will be a girl with hairy ears
Answer:
Since the gene is located on the Y chromosome, and the Y chromosome is absent in females, the probability their first child will be a girl with hairy ears is zero
Explanation:
Y-linkage, also known as holandric inheritance is a form of sex linkage in which inherited traits in offsprings are produced by genes located on the Y chromosome. The Y chromosome is one of the sex-determining chromosomes and is present only in males. Males have a copy of the Y chromosome and an X chromosome while females have two copies of the X chromosome.
For a trait that is linked to the Ychromosome, the phenotypic effect occurs only in males and is always manifested in these males. Since the Y chromosome is absent in females, the character and its phenotypic effect are absent from daughters of trait carriers. Therefore, all daughters will be normal.
Since the gene for hair growth onnthe pinna is located on the Y chromosome, and the Y chromosome is absent in females, the probability their first child will be a girl with hairy ears is zero.
The probability that their first child will be a girl with hairy ears is zero.
The sex chromosomes in humans are the X and Y chromosomes. They determine the sex of a baby and also carry the sex linked traits. A baby girl results from XX and a baby boy results from XY.
We are told that this gene for hairy ears is located on the Y chromosome. This chromosome is absent in a girl child. hence, the probability that their first child will be a girl with hairy ears is zero.
Learn more: https://brainly.com/question/16243729
The importance of water properties on plants and animals
The importance of water properties on plants and animals.
Answer:The importance of water in plants is that it helps plants to make their own food, because water plays a very important role in Photosynthesis, and as well it helps them to grow.
The important of water in animals is that it is main need for animals to survive as well as humans. Without water even a single organism won't exist in this Earth.
Hope it helps you :)The human body is made up of more than three-fourths of water, and all animals and plants require water to thrive.
Why water is essential for plants and animals?Water is used by all living things to transport nutrients throughout the body and remove waste. Among its many crucial functions, water aids in the digestion of food and the preservation of organisms' heat.
The term "universal solvent" refers to water's enormous capacity to dissolve a wide range of molecules, and it is this capacity that makes water such a priceless life-sustaining agent.
Water's function as a solvent aids cells in the transfer and utilization of molecules like oxygen or nutrients on a biological level.
Therefore, to do all the cellular processes by plants and animals there is need of water.
Learn more about water, here:
https://brainly.com/question/7977819
#SPJ2
explain how misuse of human resources can be harmful
Which of the following sentences uses commas correctly? Carol was the last person out of the house wasn't, she? Carol was the last person, out of the house wasn't she? Carol was the last person out of the house, wasn't she? Carol, was the last person out of the house wasn't she?
Answer:
The third sentence......................
Explanation:
The correct sentence is Carol was the last person out of the house, wasn't she?
Why is a comma important?Commas help your reader figure out which words go together in a sentence and which parts of your sentences are most important. Using commas incorrectly may confuse the reader, signal ignorance of writing rules, or indicate carelessness.
What are the Rules of commas?Comma Rules
Use a comma after an introductory phrase or clause. Use commas before and after a parenthetical phrase or clause. Use a comma to separate two independent clauses linked by a coordinating conjunction (and, but, for, nor or, so, yet) Use a comma to separate items in a series.Learn more about the use of commas here https://brainly.com/question/2251561
#SPJ2
Below is a mature eukaryotic mRNA transcript. Translate this mRNA into a protein, also showing the tRNA anticodons involved. Make sure you start and end translation in the right place! Label the ends of the polypeptide chain as N and C terminus.
mRNA: 5'GMUUACAUGCGGCUCAGUUGAGGCGAAAAAA 3'
tRNA:
amino acids:
Answer:
mRNA ⇒ 5'GMU UAC AUG CGG CUC AGU UGA GGC GAA AAA A 3'
tRNA ⇒ UAC GCC GAG UCA ACU
protein ⇒ N - MET ARG LEU SER Stop - C
Explanation:
In protein synthesis, the ribosome reads mRNA in the 5´ to 3´ direction, and, according to the codons that are being readen, tRNA transfers the correct amino acids to build the polypeptide chain. A codon is a short sequence of three nucleotides that store the genetic information for the aminoacids´ assembly. Each tRNA has two important sites. One of them that couples with the codon of the mRNA molecule, named anticodon. The other site couples with an amino acid. tRNA allows amino acids to align according to the nucleotidic sequence in the mRNA molecule.
Once the new amino acid links to the growing peptidic chain, the binding between the amino acid and the tRNA molecule breaks. The tRNA is now free to join another amino acid and repeat the cycle.
The protein is synthesized from the amino terminus to the carboxy terminus, while the added amino acids to the chain are coded by a codon formed by three bases in the mRNA. mARNs also have a start and end codon that are the signals of the synthesis initiation and finish. When the ribosome reaches the end codon, protein synthesis is over.
Each of the codons represents one of the 20 amino acids used to build the protein. Each amino acid can be codified by more than one codon. From the total 64 codons, 61 codify amino acids, and one of them is a start codon. The left three codons are stopping translation points.
The codons indicating the initiation or stop points during the translation process are:
• The start codon AUG is the most common sequence used by eukaryotic cells and places near the 5´extreme of the molecule.
• The end codons are UAA, UAG, UGA.
Protein synthesis initiates in the AUG start codon -Metionin-, and ends when reaching either of the stop codons UAA, UAG, UGA.
In the exposed example we have the following mRNA.
mRNA ⇒ 5'GMU UAC AUG CGG CUC AGU UGA GGC GAA AAA A 3'
Codons are separated by a space left between them. AUG is the start codon placed near the 5´ extreme. UGA is the end codon near the 3´ extreme. tRNA will add amino acids from the start codon, not before.
tRNA ⇒ UAC GCC GAG UCA ACU
Anticodons are separated by a space left between them.
protein ⇒ N - MET ARG LEU SER Stop - C
Each mRNA codon codifies for an amino acid. The start codon codifies for methionine. AUG = Met, CGG = Arg, CUC = Leu, AGU = Ser, UGA = Stop codon. The amino terminus is represented as an N and the carboxy terminus is a C. The first extreme to be translated carries the amino-terminal group, while the other extreme carries the carboxy-terminus group.
which is more vulnerable to disturbances, a simple food web with only a few species or a more complex one
Answer:
few species
Explanation:
in a complex one im not sure as to how the question measures complexity but a complex one may have more options and more things to adapt to
Take the gram seeds. Divide the seeds into three sets A, B and C.
➢ Put the seeds of set A onto the moist cotton.
➢ Soak the seeds of set B in the water overnight and then put on the moist cotton for seed germination.
➢ Put the seeds of set C in the boiling water for some time then allow it to germinate on the moist cotton.
➢ Grow a plant in another set.
➢ Note the observations every week.
Set A
Set B
Set C
Plant 1 st week 2 nd week So on….
Explanation:
set A ,seeds will germinate
set B,seeds will rot due to the presence of alot of water
set C,seeds will not germinate
Describe how table salt dissolves in water in 300 words.
Answer:
salt disloves in 300 words
Answer:
Salt (sodium chloride) is made from positive sodium ions bonded to negative chloride ions. Water can dissolve salt because the positive part of water molecules attracts the negative chloride ions and the negative part of water molecules attracts the positive sodium ions.
Explanation:
When sodium chloride is dissolved in water, the polar water molecules are able to work their way in between the individual ions in the lattice. The water molecules surround the negative chloride ions and positive sodium ions and pull them away into the solution. This process is called dissociation.
What do proteins, nucleic acids, and carbohydrates all have in common?
an ion is formed when an atom
Answer:
The basic unit of the chemical elements
2. What is the percentage likelihood that the couple will have a child that has the allele for cystic fibrosis
Answer:
the answer I got for the question you asked is 75%
How old is the sun?
Our little teenage Sun is nearly 4.6 billion years old.
Discuss the origin of the Neandertals in terms of biological adaptation and other forces of evolution.
Answer:
Neandertals are closest relative to modern humans as their large brains size had to do with their meat diets. There were many theories including the Allens theory or Bergman theory their larger nasal apertures to cold environments.
Smaller bodies are adapted to more hot climates, and larger bodies are adapted to more cold climates as per Bergman's rule. Allen's rule says that the principle that limbs are longer in hot environments and shorter in cold environments.
g 20. Name two bones connected by an interosseous membrane found in the crus and/or sural region. Which one is the medial bone
Answer:
Tibia and fibula. Tibia (medial bone)
Explanation:
The tibia is the medial bone of the lower leg (it is the second-largest bone next to the femur), whereas the fibula is the lateral bone of the lower leg. The tibia functions to transmit the majority of the force in the lower leg. The tibia articulates at the proximal end with the femur and fibula; where this bone (tibia) articulates at the distal end with the fibula and the talus bone of the ankle. The tibia and fibula are connected via an interosseous membrane, which is a thin sheet of connective tissue that spans the space between two bones.
The genetic code is defined degenerate or even redundant because:
A. the same codon codes for different amino acids
B. an amino acid can be encoded by several codons
C is different in all organisms, except in monozygotic twins
D. the sequence of codons is not separated by intervals, but is continuous
E. the structure of the genes is constantly mutating
Answer:
B. an amino acid can be encoded by several codons
Explanation:
The genetic code refers to the set of rules that govern how the four nitrogenous bases (A,U,G,C) is arranged to form amino acids. The genetic code is a collection of all the CODONS formed. There are different characteristics of the genetic code and one of them is its REDUNDANCY.
Since there are 4 nitrogenous bases combined in three's to form a codon i.e. 4³, there are 64 possible codons that could form 20 maximum amino acids. This means that there are more codons in relation to amino acids. Hence, more than one codon can encode an amino acid, and this is referred to as REDUNDANCY of the genetic code.
For example, LEUCINE amino acid is encoded by 6 codons as follows: UUA, UUG, CUU, CUC, CUA, CUG.
ssons
sts & Quizzes
essages
What mistake(s) can you identify in this graph?
1. Poor scale, wasted space
II. No units for independent variable
III. No units for dependent variable
IV. One axis uses decimals and the other does not.
140
astant Teacher
Sradebook
120
100
80
volume of gas produced in 1 minute
60
40
20
o
0.0
3.0
0.5 1.0 1.5 2.0 2.5
acid concentration (M)
Type here to search
o
HE
Answer:
I. Poor scale, wasted space
III. No units for dependent variable
Explanation:
Given
See attachment for graph
Required
Identify the mistakes
The mistakes are
(I) Poor scale
The unused space on the vertical axis is much. A better scale would have reduced the amount of unused space.
(II) There is a unit (1 minute) in the independent variable; so, this is not a mistake
(III) No unit on the dependent variable
Yes, this is part of the mistake, as there is no units on the x-axis
(IV) Decimals
This is not a compulsory requirement of plotting graphs; so, this is also not a mistake
Hence,
Hence (I) and (III) are mistakes on the graph
Answer:
II
Explanation:
Cuz it is
are oxygen and glucose products in cellular respiration?
Answer:
no the oxygen and glucose are used to produce ATP in cellular respiration
Most streams result from _____.
a. altitude
b. melted snow
c. oceans
d. rivers
Answer:
....b........ melted snow
n
Mauna Loa is the most active volcano on Earth.
O True
O False
h
Answer:
it's "True"
Mauna Loa is the most active volcano on Earth
Answer:
True
Explanation:
Because A^2+B^2=C^2
Which statement is true?
A.Peat is a fossil fuel because rewetting it takes only 3–5 years.
B.Peat is a fossil fuel because the total time for restoration is lengthy.
C.Peat is not a fossil fuel because it has biologic origins, making it a biofuel.
D.Peat is not a fossil fuel because humans can promote the replenishment of peat.
Peat is not a fossil fuel because humans can promote the replenishment of peat is a correct statement.
What do you mean by Fossil fuels?Fossil fuels may be defined as fuels that are derived from decomposed plants and animals. It includes coal, petroleum, oil, and natural gases.
Peat is considered forgotten fossil fuel because through the activity of humans it may be replenished into other forms for different use. It may maximum takes 3-5 years for rewetting.
Therefore, the true statement is Peat is not a fossil fuel because humans can promote the replenishment of peat.
To learn more about Fossil fuels, refer to the link:
https://brainly.com/question/79954
#SPJ2
Which of these molecules are used for short term energy by
organisms?
Select one:
a. Proteins
b. Nucleic Acids
O c. Carbohydrates
d. Lipids
Write an experiment to show that sunlight is necessary for photosynthesis.
Answer:
Explanationwe have two or three plants, they both get the same water every day they both get the same amount of soil and fertilizer, one is without sunlight and one is with, after a 2 weeks our results will be found
hope this helps
number of chiasmata during the stage of diakinesis:
a) increases
b) decreases
c) remains the same
d) there is no kiazma
Explain the answer
Answer:
a because it harm the people
Warfarin acts by inhibiting the activity of the VKORC1 protein, which helps to produce functional clotting factors. There is a variant in the VKORC1 gene that lowers the dose of warfarin required for treatment, and individuals with this variant have increased risk of bleeding when they are treated with warfarin. This variant is found 1639 base pairs upstream of the translational start site. This variant likely:______.
a. decreases the activity of the VKORC1 protein.b. increases the activity of the VKORC1 protein.c. decreases expression of the VKORC1 gene.d. increases expression of the VKORC1 gene.
Answer:
The correct answer - c. decreases expression of the VKORC1 gene.
Explanation:
Mutation of Guanine nucleotide into Adenosine is the reason for this particular type of mutation. This mutation expresses the less expression of the VKORC1 protein.
The mutation results in a decrease in the affinity of the binding site of the transcription factor which causes less expression. Since the VKORC1 protein is less in the body so Warfarin doses are decreased
Thus, the correct answer is - decreases expression of the VKORC1 gene.
Fill in the blanks: Antibodies are produced by _______________________________________ and bind to specific ________________________________ on erythrocytes, causing ________________________________, or clumping of erythrocytes.
Answer:
Antibodies are produced by _white cells__ and bind to specific _antigens_ on erythrocytes, causing __agglutination__, or clumping of erythrocytes.
Explanation:
Macrophages are one of the different types of cells that intervene in the organism's defense system against strange substances and pathogen agents. These cells are the principal actors in the immune response.
Macrophages have several functions. They are the principal phagocytes of tissues, capable of recognizing different strange molecules that penetrate the organism, such as bacterias, parasites and, viruses. Macrophages phagocyte these substances and eliminate them, a process known as phagocytosis. When macrophages are activated, they release cytokines that favor inflammation response, which is used to neutralize the pathogen agent. When macrophages phagocyte strange substances, they show the antigens in their surfaces to be recognized by lymphocytes.
Antigens are defined as the strange substances that enter the organism and trigger a series of cellular events that produce defense mechanisms. Antibodies recognize antigens as invaders.
In the organism, there are leucocytes or lymphocytes (white cells) in charge of immune defense. These are B cells, which produce antibodies, and T cells that can destroy infected cells from the body. They all circulate in the blood.
Antibodies are globular proteins produced by lymphocytes in response to the presence of strange molecules. Each type of antibody recognizes and combines with a particular antigen, immobilizing it. After that, the antigen is destroyed by other components of the immune system.
Prokaryotes and eukaryotes are similar in all of these aspects except
A. having all four types of macromolecules.
B. the size of their cells.
C. having at least one cell.
D. the presence of DNA
Answer:
D its D its D its D ddddddddddddddddd
