The presence of the minute growth near the disc signifies that the bacterial innoculum contains mutant microorganisms that are able to grow in the presence of toxic substances.
What are zones of inhibition?The sensitivity testing in a microbiology laboratory is done to determine the effect of antibiotics on various bacteria organisms
The zone of inhibition when a disk method is used signifies the area of media where bacteria are unable to grow, due to presence of a drug that impedes their growth.
If there are presence of minute growth near the disc, it means that the bacterial innoculum contains mutant microorganisms that are able to grow in the presence of toxic substances such as disinfectants.
If these mutant bacteria organisms are not cleared by the disk method, it means that they cannot be killed by the disinfectant/antiseptics that is being tested.
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If an object is being pulled toward the
center of the Earth, what force is acting
on it?
Gravitational force the force acting on the object.
Which two sentences best explain what happens to the energy snails get
from the plants they eat?
. A. The snails use about 1% of the plants energy to carry out life
processes.
. B. About 90% of the energy is lost as heat escapes into the
surroundings.
. C. The snails use about 10% of the plants energy to carry out life
processes.
D. About 90% of the energy IS passed on to the birds that eat the
snalls
Pls hurry
Answer:
B. About 90% of the energy is lost as heat escapes into the
surroundings.
C. The snails use about 10% of the plant's energy to carry out life
processes.
Explanation:
In humans, separation of the cells at the two-cell state following fertilization may lead to the production of twins, which in this case would be ________.
In humans, separation of the cells at the two-cell state following fertilization may lead to the production of twins, which in this case would be identical.
Which of the following will occur immediately after ovulation?The corpus luteum prepares to become a corpus albicans. The corpus luteum secretes estrogen only. The secretion of anterior pituitary gonadotropins is enhanced.
Thus, in this case would be identical.
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The hereditary material in corn plants can be altered by scientist so the plants produce more corn. which term identifies this process?
Answer:
Genetic engineering
Explanation:
So there's Environmental degradation ,Ecological succession
Genetic engineering , Selective breeding . and so all the other ones aren't related to the materiel in corn so that makes it Genetic engineering ing
Removal of the fallopian tubes and ovaries: a.Salpingectomy b.Conization c.Total hysterectomy d.Bilateral salpingo-oophorectomy e.Partial hysterectomy
Answer:
D: bilateral salpingi-oophorectomy
Which of the following situations would someone who advocates for animal rights prefer?
A. a lion at a popular zoo
B. a cat in a wealthy home
C. a horse living in the wild
D. a goat kept on a farm
On edge
The situations would someone who advocates for animal rights prefer a horse living in the wild
What is animal rights?Animals deserve to live their lives freely without suffering and exploitation called animal rights.
So Animal rights are the principles formed in the belief that non-human animals deserve the ability to live as they wish, without being subjected to the desires of human beings.
The animal rights movement will make the public aware about the fact that animals are sensitive, emotional, and intelligent beings who also deserve dignity and respect.
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in a certain plant, tall stems (T) is dominant over short stems (t). A farmer crosses two heterozygous long-stemmed flowers. What are the expected genotypic and phenotypic ratios
Answer:
Tt = 50%
tt = 50%
tall = 50%
short = 50%
I hope this helps you
:)
What is a renewable resource?
This is what I have so far...
a renewable source is a natural resource that can be used and replaced in a short period of time
Hi! Here to help.
The question asks, "What are renewable resources?"But really, what are renewable resources?
A renewable resource is a type of resource that can always be restocked, replaced, or renewed, regardless of conditions.
Examples of Renewable Resources;
Plants Living thingsSunlight WaterRenewable resources help us survive in many ways every single day.
Which of the following structures is not present in some chordates?
A a tail
B a backbone
C a notochord
D a hollow nerve cord
Part A
You will create a molecular clock model for an arthropod gene. Follow these guidelines to make your model:
Your timeline will span from 90 million years ago to the present. The common ancestor in your model is an arthropod that lived 90 million years ago. The gene that you’ll track codes for a protein in the species’ venom.
The DNA sequence you’ll track contains 10 nitrogen bases. You can choose the order of the bases and where the mutations occur.
This gene mutates at a rate of approximately 0.76 base pairs every 17.1 million years. To build your model, calculate the estimated time period it takes for 1 base pair to mutate.
The first time period will only show the common ancestor. At the beginning of the second time period, three lineages will diverge from the common ancestor, each with a different mutation in their gene sequences.
The first and third descendant species will survive for the rest of the timeline. The second descendant species was extinct 50 million years ago.
Calculate how long it will take for one full base pair mutation to occur. Explain your reasoning by constructing a mathematical equation.
Based on the mutation rate of the molecular clock, it will take 22.5 million years for one full base pair mutation to occur.
What is a molecular clock?A molecular clock is a biomolecule which is chosen to serve as a clock due to its periodical changes in a regular pattern.
Mutation in genes can serve as molecular clock.
The mutation in the gene of coding for the venom mutates at a rate of 0.76 base pairs every 17.1 million years.
It will take 17.1/0.76 = 22.5 million years for 1 base pair to mutate.
Therefore, it will take 22.5 million years for one full base pair mutation to occur.
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What is the base pair rule? Which base pairs bond together to form the "steps" of the DNA
ladder.
What happens to an enzyme when a competitive inhibitor binds to it?.
Answer:
The competitive inhibitor binds to the active site and prevents the substrate from binding there. The noncompetitive inhibitor binds to a different site on the enzyme; it doesn't block substrate binding, but it causes other changes in the enzyme so that it can no longer catalyze the reaction efficiently
Select all that apply.
A food chain or food web can provide good information including _____.
how much energy is transferred from one organism to another
the types of food that are best for you to eat
the eating patterns of organisms
the flow of energy in an ecosystem
Answer:
the flow of energy in an ecosystem
the eating patterns of organisms
how much energy is transferred from one organism to another
Explanation:
A food web is an interconnection of multiple food chains and a practical representation of what-eats-what in an ecosystem, while a food chain is a linear sequence of how nutrients and energy (in the form of food) are transferred from one organism to another organism in an ecosystem. A food web contains many interconnected food chains. A food web or food chain provides information about how organisms are connected, the eating patterns of organisms, and the flow (or the amount) of energy that is transferred from one level to another through different organisms in an ecosystem.
(20 points) pls help
Use the map below to describe the type of weather the
town at the arrow will be experiencing in the next few hours.
Answer:
rain, I think because I watch the news a lot an d the triangles usually mean rain
What are three ways to reduce the use of energy at home?.
How does your digestive and musculoskeletal system work together
Explanation:
The muscular system allows for movement within the body, for example, during digestion or urination. Smooth muscles in the gastrointestinal or GI tract control digestion.
Carl jung established __________ after disagreeing with sigmund freud on a number of issues regarding the psychodynamic perspective on personality please select the best answer from the choices provided inferiority-compensation theory psychoanalytic theory analytical psychology individual psychology
Answer:
analytical psychology
Nerves designated by Roman numerals and by names that indicate their primary functions and/or the general distribution of the their fibers are
Cranial Nerves are paired nerves, since there is one for each side of the body, there are a total of 12 nerves and they are named with Roman numerals and by names that indicate their primary functions.
What are Cranial Nerves?They are a set of nerves that come directly from the brain, unlike the rest of the nerves of the nervous system.
Each pair is numbered with a Roman numeral depending on whether the position from which they leave the brain more or less near the frontal area.
Therefore, we can conclude that Cranial Nerves are paired nerves, since there is one for each side of the body, there are a total of 12 nerves and they are named with Roman numerals.
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What muscle covers the ventral, abdominal region in rats?
Answer:
the external oblique.
Explanation:
the external oblique covers the ventral, abdominal region in rats.
Please help me its my last queston
Answer:
Top right- bb. Bottom left = Bb. Bottom right- bb
Explanation:
Find the two letters that interset the box and fill them the upper or lowercase letter depending on where and what the letter are outsde the Pennet Square
What if the gas molecules collide at very low temperatures? will that change what happens? why?.
Answer:
At low temperatures, gas particles have less kinetic energy, and therefore move more slowly; at slower speeds, they are much more likely to interact (attracting or repelling one another) upon collision
If the gas molecules collide at very low temperatures then the collision will be slower as the intermolecular forces are stronger at the lower temperature and it is demanding situation to give high energy in order to break the bonds.
What is the fate of collision of gas molecules ?The fate of gas molecules is the formation of making gases compounds by making the elements bind together in order to form a new compound.
At the lower temperature, the average velocity of the molecules that are possessed by the molecules is decreased therefore the gas molecules will have lesser kinetic energy and they will move very slowly in order to form a new compound.
Gases do not exert much of force on each other but they do possess a collision with each other and the collision molecules are elastic so as they are able to do collision.
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A man with type A blood marries a woman with type B blood. Their child has type O blood. What is the genotype of the woman
Answer:
The genotypes of the two parents are AO and BO. Blood types A and B are dominant over blood type O,
Explanation:
An offspring inherits their genotype (genetic makeup) from their parents with each parent providing one allele for a given trait. An offspring need only inherit one dominant allele to have the phenotype (observable physical characteristic) of that trait and must inherit a recessive allele from each parent in order to have that phenotype. For example, brown hair is a dominant trait and only one parent must provide that allele for hair color in order for their offspring to have brown hair. In order for the recessive trait of blonde hair to be the phenotype of the offspring, each parent must provide the blonde hair allele.
By the end of the second trimester of pregnancy,
A.
all a human's body parts have been formed.
B.
a human's brain has not yet formed.
C.
a human's brain has not yet begun to function.
D.
all a human's body parts are fully developed.
Answer:
D
Explanation:
The baby is done growing and body parts are fully developed.
Answer:
Option C
cacause the fetus will be 13-16 inches longer and weight will be3 -5 pounds
Explanation:
what are the negative effects of eating unhealthy food?
Answer:
Unhealthy food can affect the human body.
Explanation:
Eating unhealthy foods on a regular basis may contribute to health problems. Studies continue to show the negative effects of many common unhealthy food products. For optimal health and wellness, eat a balanced diet with plenty of fruits, vegetables, and whole grains -- and save the empty calories for occasional treats.
the specific heat of a wax coating on a plant is 2400 j/kg degrees Celsius. During the day a 0.0055 kg coating of wax on a lead heats up from 15 to 22 degrees Celsius. How much radiant energy was absorbed by the wax?
The radiant energy was absorbed by the wax coating on the plant is determined as 92.4 J.
Heat absorbed by the waxThe heat absorbed by the wax is determined as follows;
Q = mcΔT
where;
m is mass of the waxc is specific heat capacityΔT is change in temperatureQ = 0.0055 x 2400 x (22 - 15)
Q = 92.4 J
Thus, the radiant energy was absorbed by the wax coating on the plant is determined as 92.4 J.
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How do the final products of meiosis differ in reproductively capable humans that produce sperm versus eggs?.
Answer:
In males the result is 4 sperm cells
In females the result is one ovum and 3 polar bodies
The final products of meiosis in males is four sperm cells and in females it is one ovum and three polar bodies. Thus, the final product of meiosis is four sperm cell in male and one ovum in female with three polar bodies.
What is meiosis?
Meiosis is a process in which a single cell divides into two identical daughter cells and the process is known as cell division.
Meiosis is a type of cell division in sexually reproducing organisms that reduces the number of chromosomes in gametes.
The main functions of meiosis are mentioned below:
1) Meiosis in humans causes the decrease or reduction of the number of chromosomes in normal cells which is specifies as production of gametes.
2) Meiosis induces genetic variation by the process of recombination.
The main objective of meiosis is to produce gametes, the sperm and eggs, with half of the genetic character of the parent cell.Meiosis is a process in which a single cell divides into two identical daughter cells and the process is known as cell division.
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How do living organisms affect different parts of the biosphere?
Answer:
inhale oxygen and exhale carbon dioxide (CO 2) from the atmosphere.
Explanation:
The blood flow through the kidney is special because:.
Why is it important to ask a person who has an insect sting if they have had any prior serious reactions to insect stings
It is important to ask about the reactions caused by an insect bite because this will allow you to act quickly if there are health effects.
What is an insect sting?The insect sting is the way in which insects defend themselves when they feel attacked by other organisms. Insects generally have stingers or spikes on their bodies to defend themselves against predators.
Why is it important to be aware of the effects of a sting?When a person suffers a sting, it is necessary to report all the symptoms that they experience because some insects have substances that affect the body and can cause allergic reactions that put the health and life of the individual at risk.
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a cell model is shown. students were instructed to review the types and number of structures that are present in this cell model. which three cell types could be represented by the model?
Answer:
M. Temperature of the reaction
P. Amount of enzyme
T. pH of the reaction