Answer:
D
Explanation:
PCR, assuming sufficient primers, dNTP’s, and polymerase molecules, doubles the number of target DNA molecules per cycle. 5 cycles corresponds to 5 doublings of the target DNA. 2x2x2x2x2, or 2 to the 5th power is 32.
What term includes all the biotic and abiotic factors in an area
Answer: Ecosystem
Explanation: An ecosystem consists of all the biotic and abiotic factors in an area and their interactions. A niche refers to the role of a species in its ecosystem. A habitat is the physical environment in which a species lives and to which it is adapted.
Answer and Explanation:
An ecosystem is a particular area of which both biotic and abiotic factors consist. An ecosystem is a community of living organisms in joining with the nonliving components of their environment, all interacting as one system. Biotic and abiotic components are linked together through nutrient cycles and energy flows.
Hope this helped you out! Have a wonderful day!
what's the important parts of earth's magnetic field
Answer:
The Main Field creates a cavity in interplanetary space called the magnetosphere, where the Earth's magnetic field dominates in the magnetic field of the solar wind. The magnetosphere is shaped somewhat like a comet in response to the dynamic pressure of the solar wind.
Explanation:
How do you access the "My Course Content" established by your instructor so you know what structures to study in APR?
Answer:
Enter the custom code (alphanumeric) provides to you by your instructor.
Explanation:
Which of the following is not a model organism?
a. Mus musculusCell
b. Drosophila melanogaster
c. Homo sapiens
d. Arabidopsis thaliana
e. Caenorhabditis elegans
Answer:
The correct option is c. Homo sapiens
Explanation:
All options stated are model organisms except Homo sapiens (that is, us humans). One of the conditions to be a model organism is to be easy to breed with in a laboratory setting, which is obviously not possible with humans. The rest (mice, plant, fruit fly, worm) are easy to maintain and have been extensively studied to broaden our understanding of biological processes.
Hom sapiens is not an example of model organisms.
Model organisms are organisms which are used for various studies and
experiments.
They are usually non-human such as insects, animals etc. They are usually
bred in the laboratory under specific conditions to obtain accurate data
about their functions.
It helps scientists in research works to understand biological and other
processes that takes place in them.
Read more about Model organisms on https://brainly.com/question/8611026
Two autosomal genes control horn color in dragons. Pure-breeding gold-horned dragons were mated to pure-breeding silver-horned dragons. All of the F1 were gold. The F1 were intermated and the F2 generation consisted of 147 gold, 16 silver and 93 bronze. Choose the genetically based phenotypic ratio that should be hypothesized to explain the F2 data.
Answer:
The correct option for the phenotypic ratio in this case is the following
9 : 6 : 1
Explanation:
In order to calculate the ratio, divide the two larger numbers each by the smallest one - which here would be 17.
So, 147 ÷ 17 = 8.7 (rounded off to 9)
And 93 ÷ 17 = 5.6 (rounded off to 6)
This way, '17' is considered as 1. Hence,
Gold : silver : bronze
9 : 6 : 1
Which is a possible mechanism for why we observe the correlation that red cars are more dangerous than other colored cars?
a. Younger people prefer red cars and have less driving experience
b. Red cars are more difficult to view in the evening and are therefore more prone to accidents in medium-light conditions
c. More sports cars are painted red and people who buy them are more risk-taking
d. All of the above
Answer:
b. Red cars are more difficult to view in the evening and are therefore more prone to accidents in medium-light conditions
Explanation:
Red colored cars are more dangerous than other colored cars because red color cars can not be seen in the evening or dark environment so that's why more accidents were observed with red color cars as compared to another color cars. Red is a vibrant color and one of the most dangerous cars colors. People sometimes confused with traffic lights, brake lights etc and accident happen.
Which of the following digestive system structures releases sodium bicarbonate into the small intestine, resulting in a change in the pH of chyme from acidic to basic? a. Gallbladder b. Appendix c. Liver d. Pancreas
Answer:
d. Pancreas
Explanation:
The digestive system structure which releases sodium bicarbonate into the small intestine, resulting in a change in the pH of chyme from acidic to basic is called the pancreas. It makes use of the pancreatic duct in releasing the bicarbonates into the small intestine.
The bicarbonates aids the digestive processes and also neutralizes the duodenum from acidity. This is due to the the acidic food from the stomach and is as a result of the stomach being acidic and having acids such as dil. Hcl.
The system that breaks food molecules into smaller pieces and components for absorption and excretion is called the digestive system. It includes organs and secretions required for digesting liquids and food.
The digestive system that releases sodium bicarbonate is:
Option d. Pancreas
The system can be explained as:
The pancreas is an organ that releases sodium bicarbonate and enzymes rich in pancreatic juices to send them to the small intestine through ducts.The acidic chyme produced in the stomach gets passed to the small intestine where the pancreatic secretion along with sodium bicarbonate buffers the acidic juices and inactivates the enzyme pepsin which changes the pH of chyme to basic.The bicarbonate salt neutralizes the acidic nature of chyme and protects the further digestive organs from acidic food.Therefore, the pancreas secretes sodium bicarbonate.
To learn more about the functions of the pancreas follow the link:
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If a honeybee is flying 7.0 m/s, what is the kinetic energy (Joules) if its mass is 0.1 g? *
Answer:
2.45 × 10^-3 Joules
Explanation:
Kinetic energy is the energy assumed by a moving object. The kinetic energy, which is measured in Joules (J) is calculated using the formula:
K.E = 1/2 mv^2
Where K.E= kinetic energy
m = mass ( 0.1 g)
v = velocity (7 m/s)
Since Joules is Kgm^2/s^2, the unit of mass must be kilograms (kg), and velocity must be in metre per seconds (m/s).
Hence, we need to convert 0.1 grams to kg by dividing by 1000
1000g = 1kg
0.1g = 0.1/1000 = 0.0001kg
K.E = 1/2 mv^2
K.E = 1/2 × 0.0001 × 7 × 7
K.E = 1/2 × 0.0049
K.E = 0.00245
Hence, K.E = 2.45 × 10^-3 Joules
How would you describe the resulting molecule?
A.) both polar and hydrophilic
B.) Polar
C.) Nonpolar
D.) Hydrophobic
E.) Hydrophilic
F.) Both Nonpolar and hydrophobic
1. Which of the following would be least likely to decrease your impact on the environment?
A. Buying used goods to preserve natural resources
B. Eating seafood instead of cattle, because animal agriculture requires more resources
C. Eating less meat, because animal agriculture accounts for 9% of global greenhouse gas emissions
D. MChecking for sustainable seafood labels at the grocery store to prevent overfishinh
Answer:
A. Buying used goods to preserve natural resources
HOPE IT HELPS!
PLS MARK AS BRAINLIEST!!!
What happens when the chlorophyll breaks down in the leaves? Help please, tysm if you do!
Answer:
Hey!
When the Chlorophyll breaks down, the leaves LOSE ITS GREEN COLOUR...this is then seen physically as when the leaves change colour in the Autumn...(red,,,yellow...orange etc)
Explanation:
This happens for so many reasons : *here's a couple*
LACK OF SUNLIGHT (reduced daytimes)
TEMPERATURE (as the temperature reduces, Photosynthesis processes slow down, so there's no need for excess Chlorophyll)
HOPE THIS HELPS!!
Jonah and Cathy were sure that they had correctly answered most of their exam questions. However, they each scored less than 60 percent on the exam. This BEST illustrates the flaw in thinking known as?
Answer:
The correct answer is : Overconfidence.
Explanation:
A person who thinks his or her sense of direction or judgement is more accurate than it is actually is is known as overconfident, and this phenomenon is known as the overconfidence.
In this case, Jonah and Cathy attempted most of the question of the exam and secured less than 60% on the exam which suggests they have less knowledge than they thought they know, it is a sign of overconfidence.
Thus, the correct answer is overconfidence.
This BEST illustrates the flaw in thinking known as Overconfidence.
The following information should be considered:
A person when he or she thinks that his or her sense of direction or judgement is more correct as compared in actual situation so it is actually is is known as overconfident.So it is the example of the overconfidence.Learn more; https://brainly.com/question/20492533?referrer=searchResults
Please help me with this!!!
Answer:
I can't see your picture
Explanation:
Because of hemoglobin, blood is able to carry ____ times more oxygen than what can dissolve in the blood.
Answer:
The answer will be 70
Explanation:
Penicillium (the source of the antibiotic penicillin) is a mold that secretes a toxin that kills bacteria and other organisms. Penicillium, however, is not harmed by this toxin. This is an example of:_______
a. predator-prey.
b. commensalism.
c. mutualism.
d. amensalism.
Answer:
This is an example of amensalism (Option d).
Explanation:
The interaction between penicillium and bacteria is a typical example of amensalism.
Amensalism refers to a biological relationship established between two organisms, in which one of them avoids the growth, development, or survival of the other one. In this interaction, one of them is strongly affected by the other one, which does not seem to be affected at all. Antibiosis is referred to as amensalism interaction.
Antibiosis is the interaction in which one of the species secretes a chemical that kills the other species organism or inhibits its actions by causing severe damage. The organism that releases the toxic substance is called the inhibitor. For the inhibitor species, this relationship is neutral because it does not seem to be beneficiated or affected.
Another classic example of amensalism is those plants that secrete chemicals to damage or kill other plants that live near them. In this way, the secretory plants may live and grow with no competition.
the identity and arrangement of amino acids on the surface of a globular protein are important because
Explanation:
The Identity and arrangement of amino acid on the surface of a global other proteins are important because they produce a loss of Lawrence
Observe the two plants. Which cellular change affected the structure of second plant?
is husk or flour lighter
Answer:
repeat the question again please
Answer:
As to me I think husk is lighter than flour (not so sure)
Which is one piece of information that "9” gives about an atom of fluorine? The atomic mass is different than the atomic number, and the number of neutrons is the difference between the atomic mass and the atomic number. the atomic number the atomic mass the mass of protons the number of neutrons
Answer:
A.-The atomic number
Explanation:
Answer: A OR B
Explanation: hope this helps its A on edg
Christopher wants to grow pineapples but doesn't have enough arable land. Therefore, he decides to grow pineapples with their roots in mineral-nutrient solutions or in inert mediums such as gravel, minerals, and wood. Which technology is he using
Answer:
He is using Hydroponics.
Explanation:
It is hydroponics because
Hydroponics is an horticultural method of cultivating plants or growing plants without soil but by using water and nutrients or minerals solutions to cultivate the plants.
Hydroponics plants or herbs are cultivated inside a growing media and necessary nutrients, oxygen and water are supplied to boost their growths.
Examples of plants cultivated using hydroponics are tomatoes, lettuce, spinach, spring onions, blueberries e.t.c.
Answer:
hydrophonics
Explanation:
just took test PLATO
A planet's gravity is related to which of the following?
Answer: Weight and density
In my research, I found that the levels of "gonadotropins" in the body are critical to understanding how the drugs Clomid and Ortho Tri-Cyclen work. What are gonadotropins? What role do they play in fertility?
Answer:
Gonadotropins are hormones secreted by the pituitary gland and the placenta.
Explanation:
Gonadotropins are heterodimeric glycoprotein hormones secreted by the endocrine system in vertebrates. Gonadotropins include pituitary hormones such as follicle-stimulating (FSH) and luteinizing (LH) hormones, and placental gonadotropins such as chorionic gonadotropin (CG) chorionic gonadotropin (CG) hormones which are secreted during pregnancy. Gonadotropins play critical roles in growth, ovarian germline cell mitosis/meiosis decision and sex hormone production. In humans, menopausal gonadotropin hormones are secreted by the pituitary gland in order to stimulate ovulation.
What did B. F. Skinner believe drove one's behaviors? (Site 1)
Answer:
Environment
Explanation:
B.F Skinner was of the belief that the environment of a person drove or influenced his behavior. His opinion was that human beings have a particular way of behaving which requires special kinds of responses and that as this goes on, humans will adapt and start behaving in a certain kind of way.
He strongly believed that because we learn things differently and in different environments, that is why there are differences in human behavior and one's environment can shape his personality.
The first law in U.S. environmental policy
What is active transport?
A. The movement of molecules down a concentration gradients from high to low , using no energy.
B. The movement of molecules up a concentration gradient from low to high , using energy
C. The movement of molecules down a concentration gradient from high to low , using energy
D.the movement of molecules up a concentration gradient from low to high , using no energy
Answer:
B. The movement of molecules up a concentration gradient from low to high, using energy
Explanation:
In active transport, the molecules move against the concentration gradient.
This means that the molecules move from an area of low concentration to an area of high concentration.
Because it goes against the concentration gradient, it requires the use of ATP energy.
So, B is correct because it is the movement of molecules from a low to high concentration using energy.
Based on the above image, how can a gene determine whether a person has albinism?
Answer:
They can look at the parents, and see their color and compare
Explanation:
hurry pls :)
Tundra is colder and in a higher latitude than taiga.
True
False
Why do insects use sound
Answer:
Insects use sound to communicate with other insects, to navigate, and to hear the sounds of a predator approaching.
Explanation:
Prompt Comparing amino acid sequences in proteins has been used to determine the relatedness of organisms. Below is a graphic that shows the amino acid sequence differences between different organisms for a protein keratin. Changes in amino acid sequences are known to cause changes in structure of proteins. Part A. Consider species A, D, and E. Using the data provided, describe how the structures of their keratin proteins would compare. Part B. Keratin is made up of about 450 amino acids. Determine the similarity in percentages between species A and B, A and C, and B and C. Explain how amino acid sequences can be used in determining how closely related two species are. Part C. Based on this data, predict which two species would be more closely related to one another. Part D. Justify your predictions to part C.
Answer:
A) Species A and E are very closely related more than species A or E are related to species D.
B) Between A and B = 99.1%
Between species A and C =97.5%
Between species B and C = 97.3%
Similarity in amino acids sequence reflects similarity in DNA sequence, therefore they are used to determine how closely species are related.
C) Species A and E are most closely related
D) Since species A and E are most similar in amino acid sequence, it then means that there genetic sequences are most closely related.
Explanation:
A) The amino acid sequences of keratin, in species A and D have a difference of 19 whereas species A and E are different for only one amino acid. Therefore, it means that keratin in species A and D will have significant differences in their structure whereas between species A and E, they would have very similar structures.
Species D and E have a difference of 20 in their amino acids sequences, therefore, the structure of keratin in both species will have significant differences in their structures.
B) Similarity between A and B:
450 - 4 = 446
As a percentage: 446/450 × 100% = 99.1%
Similarity between A and C:
450 - 11 = 439
As a percentage: 439/450 × 100% = 97.5%
Similarity between B and C:
450 -12 = 438
In percentage: 438/450 × 100% = 97.3%
The DNA sequence of species determines their amino acid sequences because information in DNA is transcribed to RNA which are then used to make proteins. Therefore, if a species are very closely related, they are expected to have very similar genetic sequences (or genes) and thus similar proteins too. This similarity in proteins is observed in the similarity between amino acid sequences in their respective proteins.
C). Species A and E are most closely related.
D) Species A and E have only a single difference in their amino acids sequence for Keratin. This is equal to about 99.7% similarity, the highest similarity observed among all the species compared.
I FOUND THE ANSWER TO THE SHORT WROTING YOU ASKED ABOUT!!!
This is the answer to A) Describe how allosteric enzymes are regulated by activator and inhibitor regulatory molecules.
B) Explain how ATP and ADP act as allosteric regulators of enzymes that are responsible for ATP production, and how that is an example of feedback inhibition.
C) What is feedback inhibition? How is the ATP generating pathway discussed in part B an example of feedback inhibition?
Answer:
a} Allosteric regulation is just any form of regulation where the regulatory molecule (an activator or inhibitor) binds to an enzyme someplace other than the active site.The shape of the active site is changed, allowing substrate to bind at a higher affinity.
b) The molecules that bind cellular respiration enzymes act as signals, giving the enzyme information about the cell's energy state. ATP, ADP, and NADH are examples of molecules that regulate cellular respiration enzymes. ATP, for instance, is a "stop" signal: high levels mean that the cell has enough ATP and does not need to make more through cellular respiration.
c) This is a case of feedback inhibition i in which a product feeds back to shut down its pathways.
Briefly define and explain the differences between nature and nurture (GENERAL PSYCHOLOGY QUESTION BTW !!!!!!).
Proper nutrition promotes growth, leads to health and longevity, and promotes intellectual growth by affecting the brain and psyche.
Nature in general refers to the phenomenon of the physical world as well as life; It also extends from subatomic particles to the universe itself.
Nuture you are taking care of something, helping it grow, usually (under a roof/in a house) For say, you have a baby you nuture your baby meaning you feed it, change it, teach it etc. If the baby was growing up in nature, it wouldnt be taught it would have to do those things on its own.
Explanation: