Answer:
Antigen or antibody?
Explanation:
Assuming that you observed similar patchy bacterial growth pattern in plates "B-Amp, phage" and "C-LB, phage". The T4 phages greatly affected the growth of E. coli strain CR63 in the LB plate ("C-LB, phage" plate), creating a patchy bacterial growth pattern similar to the expected result in the ampicillin plate of strain BE with phage ("B-Amp, phage" plate). Besides experimental errors, describe the possible reasons why the bacterial colonies were isolated in these two plates. "B-Amp, phage" Plate (strain BE)?
Answer:
Some bacterias show a great resistance power to fight against T4 phages That leads to great growth in the medium given that resistance power may be given by plasmids As plasmids show the resistant genes that great work in the medium.
T4 phage is a virus that shows a lytic cycle after affecting bacteria and going to kill the bacterial cells in bacterial strain So no growth in LB media. Some bacteria are sensitive due to the lack of resistant genes therefore, their growth may affect by many factors of the medium. If the bacteria are recombinant, they show greater growth in the medium.
* B-Amp, Phage plate (strain Be), there is ampicillin, so inhibits the growth of bacteria but still there is patchy growth of bacteria and they still show the growth but due to presence of phage T4, they show patchy growth.
Mutations in which of the following cells would get passed on to the next generation?
I. sperm
II. Skin cell
III. Egg
IV. Neuron
A. II, III, and IV
B. III only
C.I and III
D. I, III, and IV
Answer:
C. I and III
Explanation:
A mutation needs to occur in a gamete cell in order to be passed down to the next generation.
If it occurs in a somatic (body) cell, the mutation will only be present in that organism.
On the other hand, in a gamete cell, the mutation will pass down because gamete cells are directly involved in the genetic makeup of the offspring.
So, since sperm and egg cells are gametes, mutations in those cells would get passed on.
The correct answer is C. I and III
These bacteria rapidly divide until they run out of space. Their growth then slows down, and their population size stabilizes. What kind of curve would accurately show these changes in the population?
The correct answer is B. S-curve
Explanation
There are two models of population growth. One of them is the J-curve in which the population grows constantly without stabilizing, forming a J-shaped graph. Second, the S-curve is a model in which the population grows to a point, and from there it stabilizes, forming an S-shaped graph. According to the above, bacteria that divide rapidly until they run out of space and their growth slows down stabilizing the size of their population has an S curve model because the population does not grow unlimitedly but stabilized under specific circumstances. So, the correct answer is B. S-curve
what is the source of food for germinating seed ?
All human impacts on the environment, such as the depletion of natural resources, are significantly worsened by __________. air and water pollution climate change human population growth agricultural practices
Answer:
overpopulation
Explanation:
this along with the others listed have triggered climate change and soil erosion
Apply logarithm to evaluate T given 644 204=400 000 (1+10%)^T,by first simplify the equation.
The value of T after applying logarithm to evaluate the function is 4.9988
Given the expression
[tex]644 204=400 000 (1+10 \%)^T[/tex]
Since 10% = 0.1, the expression becomes;
[tex]644 204=400 000 (1+0.1)^T\\644 204=400 000 (1.1)^T\\\frac{644204}{400000} =1.1^T\\1.61051=1.1^T[/tex]
Take the logarithm of both sides
[tex]log1.61051=log1.1^T\\log1.61051=Tlog1.1\\Swap\\Tlog1.1=log1.61051\\T=\frac{log1.61051}{log1.1}\\T=\frac{0.2069}{0.04139} \\T=4.9988[/tex]
The value of T after applying logarithm to evaluate the function is 4.9988
Learn more on logarithm here: https://brainly.com/question/11582285
The erosion of rock by wind is an example of an interaction
between:
A. Atmosphere and Lithosphere
B. Atmosphere and Hydrosphere
C. Hydrosphere and Lithosphere
D. None of these
The erosion of rock by wind is an example of an interactionbetween:
B. ɑtmosphere ɑnd Hydrosphere
The erosion of rock by wind is an example of an interaction
between: B) Atmosphere and Hydrosphere.
What is erosion explained?
Erosion is the geological system in which earthen materials are worn away and transported by means of natural forces consisting of wind or water. A similar technique, weathering, breaks down or dissolves the rock, but does no longer involve movement.
What are erosion and weathering?Weathering is the breaking down or dissolving of rocks and minerals on Earth's floor. as soon as a rock has been damaged, a process called erosion transports the bits of rock and minerals away. Water, acids, salt, flora, animals, and modifications in temperature are all dealers of weathering and erosion.
Learn more about erosion here: https://brainly.com/question/17905503
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What is Alzheimer's disease??
Answer:
Alzheimer's disease is a progressive neurologic disorder that causes the brain to shrink (atrophy) and brain cells to die.
Explanation:
Hope it is helpful.
Thankyou
Answer:
Alzhimers disease is a progressive neurologic disorder that causes the brain to shrink and brain cells to die . Alzhimers disease is the most common causes of dementia - a continious decline in thinking behavorial and social skills that affects persons ability to function indepedently .
In Gregor Mendel's work with pea plants, he found that when a tall pea plant, with genes TT, was crossed with a short pea plant, with genes tt, that _____ % of the first generation of offspring plants were _____.
Answer:
In Gregor Mendel's work with pea plants, he found that when a tall pea plant, with genes TT, was crossed with a short pea plant, with genes tt, that _100_ % of the first generation of offspring plants were tall pea plant_.
Explanation:
After crossing the two types of plants, Mendel observed that among the F1 there were only tall variants, while the other variant (short) disappeared. Mendel named "dominant" the expressed variant. Mendel then let these new plants auto pollinate and observed the results in the second generation, F2. He saw that the short variant that had previously disappeared, reappeared again. Both tall and short plants were present in the F2. Mendel named "recessive" the second alternative variant.
Mendel explained his results by arguing that discrete factors were responsible for these phenotypes. These factors should have been present in the F1 in pairs. One of them came from one parental plant, and the other factor came from the other plant. These factors then separated again when sex cells were produced, giving two types of gametes, each with only one factor.
Mendel concluded that each plant had a pair of factors -which he named alleles-, and that each factor coded for one trait -tall and short-. He thought that these factors -T and t- separate -segregate- during gamete formation. This conclusion is known as the segregation principle (First Mendels´ Low).
What is produced during the replacement reaction of Ba(NO3)2 and Na2SO4?
2BaNa + 2NO3SO4
2NaNO3 + BaSO4
NaNO3 + BaSO4
BaNa2 + (NO3)2SO4
Answer:
2NaNO3 + BaSO4
Explanation:
Answer:
2NaNO3 + BaSO4
Explanation:
Hydrocarbons are burned to produce water and carbon dioxide. Propane (C3H8) is a homologous series alkane that belongs to the hydrocarbon family. As a result, when propane is burned, three molecules of carbon dioxide and four molecules of water are produced.
Because there is an overabundance of oxygen, carbon dioxide is created when butane is completely burned.
Indicate whether each statement is true or false: 1. Compliance is the tendency for blood vessel volume to increase as blood pressure decreases. True 2. Blood vessels with a large compliance exhibit a small increase in volume when the pressure increases a small amount. True 3. Venous compliance is approximately 24X greater than arterial compliance, so as venous pressure increases the volume of veins greatly increases. True
Answer:
1. False
2. False
3. True
Explanation:
1. Compliance is the capacity of a container to increase in size to allow it hold more content. Blood vessel, arteries and veins expand (increase in volume) to be able to accommodate a surge in blood flow, which is as a result of an increase in pressure of the blood from the heart pumping of the blood
Therefore, compliance in the tendency for blood vessel volume to increase as the blood pressure increases not decrease
The statement is false
2. A large compliance is indicative of being highly sensitive to changes in pressure
Compliance, C = ΔV/ΔP
From the above equation, a blood vessel with a large compliance, exhibit a large increase in volume when the increase in pressure is small
Therefore, the statement 'Blood vessels with a large compliance exhibit a small increase in volume when pressure increases a small amount; is false
3. The compliance of the vein ranges from 10 to 20 times (30 times in some literature) greater than arteries. A factor which can be affected by the vascular smooth muscle contraction or relaxation
Therefore, the statement, 'venous compliance is approximately 24 times larger than arterial compliance, so as venous pressure increases the volume of veins greatly increases' is true
Locate each of the following general areas of your body as listed in the background by pointing to areas on your body in reference to body orientation terms. Become familiar with these terms so you can eventually recall their meanings without referring to the background.
a. Anterior
b. Caudal
c. Cephalic
d. Deep
Answer:
a. Anterior: Refers to the front of the body, which comprises the face and abdomen.
b. Caudal: Refers to the lower structures of the body, starting from the waist towards the foot.
c. Cephalic: Refers to the entire head region.
d. Deep: Refers to the inner core regions of the body, such as the bones within the muscle, the organs, among other internal structures.
Explanation:
The regions of the body presented above are very important for all health professionals, as it facilitates the study and understanding of the human body and the structures that make it up. In addition, the memorization of these terms allows health professionals to talk clearly about the injuries that patients have and the best way to treat them.
Ġ Surface area te volume ratio plays a vital role in À. growth rate of organisms B. exchange of materials between organisms and their environment C. the life-span of organisms D. efficiency of various systems in organisms
Answer:
Exchange of materials between organisms and their environment
Explanation:
DNA and RNA are structurally similar in some ways but different in others. Identify whether each of the statements applies to DNA, RNA, both RNA and DNA, or neither DNA nor RNA.
plz give a correct answer for the question how do canine and molar differ.
Answer:
gshshshs
Explanation:
shsjejjsjsjejejdjs
Answer:
canine help in tearing the fod while molar chew the food
Explanation:
xyz
Location 1
Process that occurred
Location 2
Process that occurred
Location 3
Process that occurred
Location 4
Process that occurred
Location 5
Process that occurred
Location 6
Process that occurred
Location 7
Process that occurred
Location 8
Process that occurred
Location 9
Process that occurred
Location 10
Process that occurred
Answer:
what is your question 1 ,2 ya 3 wha
In Drosophila melanogaster the recessive alleles for brown and scarlet eyes (of two independent genes) produce a novel phenotype so that bw/bw;st/st is white. If a pure-breeding brown is crossed to a pure-breeding scarlet, what proportion of the F2 will be white
Chinstrap and Gentoo penguins are two species of penguins that feed on krill in the Antarctic Ocean.
a. True
b. False
What is microbiology?
Microbiology is the study of microscopic organisms, such as bacteria, viruses,
What is the relationship between coronary artery disease and a heart attack?
A. Coronary artery disease is a symptom of heart attacks.
B. Heart attacks reduce blood flow to the heart and cause coronary artery disease.
C. Coronary artery disease can reduce blood flow to the heart and cause heart attacks.
D. Heart attacks occur when coronary artery disease is treated.
C) Coronary artery disease can reduce blood flow to the heart and cause heart attacks
CAD (or atherosclerosis) affects the vessels that supply blood to the heart muscle. It is caused by deposits of calcium, fat, cholesterol and fibrous tissues, which makes the lumen of arteries narrower. And due to inadequate supply of blood, the heart muscles get damaged. This can lead to a heart attack!
Lebell the picture from A to H
Answer:
I don't know it can I search it in my laptop and tell you the answer
Which of the following statements are true
A calorie is a unit of heat
B one calorie is the energy required to raise 1 kilogram of water
C the preferred unit in metabolism studies and nutrition label is a kilogram
Answer:
Calorie is a unit of heat
Assuming that a person going to community college can't afford to go to a four-year college is an example of a) a generalization. b) discrimination. O c) a stereotype. O d) tolerance.
Answer: stereotype
Explanation: i am not sure, but my intutions says that.
If the time interval is 55 seconds, what is the distance to the epicenter?
The immunoglobulin light chain does not have a D segment. In humans, there are two different possible light chain proteins, termed kappa and lambda. Assume that there are 35 V segments and 5 J segments in the human kappa light chain region, and there are 30 V segments and 4 J segments in the human lambda light chain region. How many possible light chain genes can be created from these different segments, simply due to combinatorial diversity
Answer:
295
Explanation:
Antibodies (also known as immunoglobulins) are immune system-related proteins that circulate in the bloodstream in order to recognize pathogenic harmful substances (antigens) and neutralize them. An antibody consists of two immunoglobulin heavy chains and two immunoglobulin light chains. There are two types of immunoglobulin light chains: 1-the kappa (κ) light chain, which is encoded by the immunoglobulin κ locus; and 2-the lambda (λ) light chain, which is encoded by the immunoglobulin λ locus. The immunoglobulin light chain is a multidomain protein composed of two domains: 1- the N-terminal variable (V) domain and 2-the C-terminal constant (C) domain. V(D)J recombination is a type of somatic rearrangement process by which T and B cells can assemble different gene segments, which are referred to as variable (V), diversity (D) and joining (J) gene segments. In the question above the number of possible genomic recombination events between immunoglobulin gene segments can be calculated as >> (5 x 35) + (4 x 30) = 295.
if you look away from this sentence and focus your eyes on a distant object, the eye muscles _______ to focus images on the retinas
If you look away from this sentence and focus your eyes on a distant object, the eye muscles relax to focus images on the retinas.
Please help please ???? I need help lol
In order to attract females, the male Bowerbird of Australia constructs elaborate structures called "bowers" on the forest floor. His bower is made from twigs, leaves, and moss, and is decorated with colorful ornaments such as feathers, pebbles, berries, and shells. If a female is sufficiently impressed with a bower, she will mate with the male who built it. This is an example of which of the five evolutionary forces? mutation gene flow non-random mating genetic drift
Answer:
non-random mating
Explanation:
In animals, most cases of non-random matings are related to behavior. There are three main possible ways of non-random mating:
Harem reproduction ⇒ Dominant males mate with their group of femalesDiscriminated mating ⇒ Individuals mate with genetically similar partnersSexual selection ⇒ One of the couple members chooses the other one.Sexual selection
In many bird and mammal species, and even in some fish species, one of the sexes selects the other one to mate. In general, the one that chooses is the female.
Intrasexual competition between males to get access to females plays a significant role in sexual selection. Males can develop weapons that make them greater fighters.
There is also intersexual selection, in which members of each sex apply selective pressures on the other sex, modeling their phenotype by choosing partners.
As notorious structures and behavior make males be more vulnerable to predation, sexual selection seems to operate against other types of natural selection, as it might affect males´ survival.
However, there seems to be a compensation between sexual selection and natural selection.
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In the exposed example, the construction of elaborated and noticeable structures is done to attract females. If females are impressed with a bower, she will choose the male that built it to mate. The better the nest is, the better the male genetic quality. So the female chooses this male because his genetic charge is significant and reflects a higher fitness for their progeny.
Help .....plz help....
Answer:
2. sedimentation (decantation follows sedimentation)
3. immiscible (water and oil never mix with each other)
4. size
5. evaporation (condensation chills the mixture where evaporation heats the mixture )
pls mark it as brainliest
Answer:
pls mark it as brainliest
sedimentation
immiscible
evaporation
pls mark it as brainliest
Describe the similarities and differences between the cheek cell wet mount and dental plaque wet mount.
Answer:
Cells from the cheek are a type of epithelial cell, similar to skin. ... They can be seen faintly even at 40x (scanning power), but the most dramatic images are at 400x where the nucleus is clearly visible as a dark spot in the center of the cell.
Explanation:
