Answer:
C. Neither Salmonella nor E. Coli can send genes to CJ bacteria. :))
Explanation:
The conclusions of the experiment are that Neither Salmonella nor E. Coli can send genes to CJ bacteria.
How can you tell the difference between E. coli and Salmonella in a lab?
The main contrast between E. coli and salmonella is that E. coli is a type of commensal bacteria that commonly lives in the lower intestine of warm-blooded animals whereas Salmonella is a facultative, intracellular pathogen in both warm-blooded and cold-blooded animals.
Thus, Neither Salmonella nor E. coli can send genes to CJ bacteria.
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how much is 14 pennies?
Answer:
14 cent
Hope this helps :)
Answer:
14 cents
Explanation:
$0.14
An Objective lens has three times the magnification of the eyepiece. If the total magnification is 160X. What will be the magnification of both the Objective lens and that of the eyepiece. (show your work)
Answer:
53.3
Explanation:
If the objective lens is 3 times the magnification
and the magnification lens is 160X
160÷3=53.33 recurring, rounded down to be
53.3
the role of enzymes in seed germination
Answer:
yes!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
All the answers please and thank you
Answer: 1. In CF, the body makes abnormal CFTR protein or none at all. Without normal CFTR protein, the cells lining the pathways (tubes) inside some organs make thick, sticky mucus rather than the normal thin, watery kind. Thick mucus can trap bacteria in the lungs, leading to infection, inflammation, and breathing problems. 2. When the CFTR protein is defective, epithelial cells can't regulate the way that chloride (part of the salt called sodium chloride) passes across cell membranes. 3. Mutations in the DMD gene cause the Duchenne and Becker forms of muscular dystrophy. The DMD gene provides instructions for making a protein called dystrophin . This protein is located primarily in skeletal and cardiac muscle, where it helps stabilize and protect muscle fibers. Collapse Section. DMD, the largest known human gene, provides instructions for making a protein called dystrophin. This protein is located primarily in muscles used for movement (skeletal muscles) and in heart (cardiac) muscle. 4. Lack of the dystrophin protein in muscle cells causes them to be fragile and easily damaged. DMD carriers are females who have a normal dystrophin gene on one X chromosome and an abnormal dystrophin gene on the other X chromosome. Most carriers of DMD do not themselves have signs and symptoms of the disease, but a minority do. Symptoms can range from mild skeletal muscle weakness or cardiac involvement to severe weakness or cardiac effects and can begin in childhood or adulthood. 5. Scurvy happens when there is a lack of vitamin C, or ascorbic acid. The deficiency leads to symptoms of weakness, anemia, gum disease, and skin problems. This is because vitamin C is needed for making collagen, an important component in connective tissues. 6. composed of ground substance and fibers. The extracellular matrix of connective tissue is composed of ground substance and fibers. In ordinary connective tissue, the ground substance consists mainly of water. The principal fiber type is collagen (the most abundant protein in the body), with elastic fibers as a minor element. brainliest?
Explanation:
When the hilum of the kidney faces anteriorly, posteriorly, or laterally instead of medially, it is called
Answer:
Answer: skeletal system. When the hilum of the kidney faces anteriorly, posteriorly, or laterally instead of medially, it is called. a malrotated kidney.
Explanation:
PLEASE HELP ASAP
Which of these is an example of a population in a desert ecosystem?
A. a saguaro cactus
B. the amount of rainfall
C. a fennec fox and it's young
D. hawks and the lizards they feed on
Answer:
A
Explanation:
because cactus are in the desert
Why would a normally aquatic or marine species adapt to the supralittoral fringe where they have to deal with desiccation and temperature stress?
Answer:
In order to survive.
Explanation:
A normally aquatic species adapt to the supralittoral fringe in order to survive in that environment. Supralittoral zone also referred to the area on coastlines and estuaries, that is regularly splashed, but not submerged by ocean water. This environment is different for the marine organisms that causes adverse effect on the marine organisms but these marine animals has the ability to adapt that environment by using certain mechanism in order to survive and easily reproduce in that environment.
help plz..............
Answer:
Should be 50% tell me if Im right
Helicobacter pylori, the bacterium responsible for gastric ulcers, can survive in the stomach (where the pH is as low as 1.5) in part because it synthesizes large amounts of the enzyme urease. (a) Write the reaction for urea hydrolysis by urease. (b) Explain why this reaction could help establish a more hospitable environment for H. pylori, which tolerates acid but prefers to grow at near-neutral pH.
Answer:
a) (NH₂)₂CO + H₂O ---> CO₂ + 2NH₃
b) The hydrolysis of urea by the urease enzyme generates ammonia which is a weak base. The ammonia thus produced, acts as a base by accepting the hydrogen ions present in the acidic environment of the stomach. This reactions serves to neutralize stomach acid in order to create a suitable pH environment that the bacterium requires to survive and colonize.
Explanation:
a) Urease catalyzes the hydrolysis of urea into carbon dioxide and ammonia. The equation of the reaction is shown below:
(NH₂)₂CO + H₂O ---> CO₂ + 2NH₃
b) The hydrolysis of urea by the urease enzyme generates ammonia which is a weak base. The ammonia thus produced, acts as a base by accepting the hydrogen ions present in the acidic environment of the stomach. This reactions serves to neutralize stomach acid in order to create a suitable pH environment that the bacterium requires to survive and colonize.
The reaction of ammonia with hygrogen ions from HCl is shown below:
NH₃⁺ + H⁺ ----> NH₄⁺
Therefore, the continuous activity of the enzyme urease, helps to establish a more hospitable environment for Helicobacter pylori
What would happen to the living things in the pond if you increase the concentration of salt?
Answer:
they would perish
Explanation:
biological term for the germ layer that gives rise to the nervous system
Answer of the question
Why are maritime air masses more often associated with weather disturbances?
associated with unstable air and stronger weather disturbance, there is more moisture in the air of a maritime air mass, increasing the possibility of rain, snow, and storms. forms over Canada, move down from North Pole, bring bitterly cold and dry air to the northern United States during the winter:
name two processes for which dna is responsible for
Answer:
Explanation:
DNA contains the instructions needed for an organism to develop, survive and reproduce.
Contains the genetic instructions for the development and function of living things
The main role of DNA in the cell is the long-term storage of information.
The two major processes that the DNA performs in the cell include:
Storage of genetic information Synthesis of protein for the regulation of cellular activities.The DNA stores the genetic information relating to the cell and ensures that the integrity of stored information is preserved and inherited by subsequent generations. It does this by replicating itself in a semi-conservative way and copies of the replicated DNA are inherited by subsequent generations. This is why the DNA is otherwise known as the molecule of hereditary.
DNA is also at the center of protein synthesis. It forms the template for the synthesis of RNA in a process known as transcription and the RNA forms the genetic codes for the synthesis of protein.
Hence, storage of genetic information and indirect regulation of cellular processes are two major processes attributable to the DNA.
More about the functions of the DNA can be found here: https://brainly.com/question/12535449
name the type of body symmetry
Answer:
If you want to know the types, here they are: radial symmetry, bilateral symmetry, and asymmetry.
Explanation:
CAN SOMEONE PLEASE HELP ME WITH THIS SCIENCE QUESTION I WILL MARK YOU BRAINLIEST THANK YOU !!!
Answer:
C. Non-depletable
Explanation:
Answer is C. because it is replaced often and cannot be completely used up
Notice the differences in the number of amino acids in cytochrome c between each organism and humans. How might these differences explain the relatedness for each organism to humans
Answer:The closer to the human cytochrome c sequence (identity then similarity of amino acid sequence) the more related the species to humans.
Explanation:
The more similar an organism's amino acid sequence is to the human cytochrome c sequence, the closer the organism is to humans. protein to compare them to human genes can help us determine which is more closely related to humans.
How do organisms differentiate according to amino acid sequence?None of the organisms differ from human Cytochrome C by the same number. In cases like this, examining anatomical structures, an evolutionary tree, or utilizing another protein to compare them to human genes can help us determine which is more closely related to humans.
Cytochrome c has undergone extremely sluggish evolution. Humans and chimpanzees share the same amino acid sequence, however, the rhesus monkey has a single amino acid variation from humans.
Therefore, amino acids in cytochrome c make the result about the relation between humans and other organisms.
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If a nation has 120 million employed people and 15
million unemployed people, what is the unemployment rate?
What property of water enables it to make the journey from the roots to the leaves? The fact that it is a liquid The fact that it is cohesive The fact that it has the ability to flow in any direction o The fact that it is found in the ground
Answer:
The correct answer is - The fact that it is cohesive
Explanation:
Capillary action is the attraction and property that allows water to move from the roots to the leaves and other parts against the force of gravity. It includes cohesion and adhesion property that combinedly makes the capillary action. The capillary action helps in the water movement to the xylem tubes to the parts of the stem and leaves.
Cohesive property is a property that holds the particles or molecules together of an object or a liquid, it is an intermolecular attraction that helps in developing surface tension of the liquid.
Interaction between multiple, individual polypeptide chains to form a complex is ______ structure
Answer:
alternative structure
The sun create what kind of light
1. White light
2. Bright light
3. Colored light
4. Empty light
Only 1 answer someone help!!
Answer: Colored light
Explanation: Sunlight is emitted from the Sun's photosphere. A fraction of the light that travels from the Sun reaches Earth. It travels as light in a range of wavelengths, including visible light, ultraviolet, and infrared radiation. Visible light is all the light we can see with our eyes.
Question 3 of 10
In an ecosystem in Africa, lions are predators for zebras. The lion population
increases, and they eat more zebras. This decreases the zebra population,
What happens next?
A. The death rate of lions increases.
B. The lion population increases.
C. The birthrate of lions increases.
D. The birthrate of zebras increases.
Answer:
a
Explanation:
the lions would no longer have enough food to feed on
Which of these would be a model of diffusion?
A. a student passes through a revolving door
B. two students pass by each other in a hallway
C. two students bump into each other in a crowded subway car
D. many students pass from a crowded room into an empty hallway
Diffusion can be described as the movement of molecules from a region of higher concentration to a region of lower concentration.
A model of diffusion could be many students pass from a crowded room into an empty hallway (option D).
A model is used to describe/illustrate a particular event or situation. In this case, the crowded room is the region of higher concentration. And the empty hallway is the region of lower concentration. The molecules refer to the students. And their movement from the crowded room to the empty hallway refers to diffusion.Learn more about diffusion: https://brainly.com/question/2135861
Nerve cells do not replicate their DNA after reaching maturity. A cell biologist observed that there was x amount of DNA in a human nerve cell. In four other types of human cells, labeled A-D, she measured the following amounts of DNA:
cell A, 2x; cell B, 1.6x; cell C, 0.5x; cell D, x
Match the four cell types with the following choices: (1) sperm cell; (2) bone cell just beginning interphase; (3) skin cell in the S phase; (4) intestinal cell beginning mitosis. (Hint: review the phases of the cell cycle and mitosis in chapter 12 if needed!).
Cell Types, Amount of DNA - Specific Cell
cell A, 2x:
cell B, 1.5x:
cell C, 0.5x:
cell D, x:
Answer:
Cell A= Intestinal cell begining mitosis
Cell B= Skin cell in S phases
Cell C= sperm cell
Cell D= bone cell just beginning interphase
5. An organism with the same appearance as their surrounding will pass on their genes,
while organisms that don't die off
A. Natural Selection
B. Sexual Selection
C. Camouflage
D. Overproduction
Answer:
A. Natural Selection
Explanation:
The following is a type of plastic found in personal care products.
O A. polyethylene
B. vanilla
C. ammonium
OD. sodium laureth sulfate
Answer:
A
Explanation:
polyethylene. hope i got it right
What is the meaning of vida
Answer:
lifetime
Explanation:
it's lifetime in Spanish
Choose one of the bubbles state whether you think we should develop this technology, and explain your reasoning
Answer:
The green buble
Explanation:
Antibiotics are added to the animal feed or drinking water of cattle, hogs, poultry and other food-producing animals to help them gain weight faster or use less food to gain weight.
Because all uses of antimicrobial drugs, animals contribute to the development of antimicrobial resistance, it is important to use these drugs only when medically necessary.
the production (e.g. growth enhancement) purposes as well as for the treatment, control or prevention of animal diseases. Even today, it is not entirely understood how these drugs make animals grow faster. The drugs are primarily added to feed, although they are sometimes added to the animals’ drinking water.
One of the ways the lymphatic system aids in maintaining normal blood volume is due to ... the lower pressure of the systemic capillaries pushing interstitial fluid out to enter the lymphatic capillaries. the higher pressure of the systemic capiillaries pushing interstitial fluid out to enter the lymphatic capillaries. the lower pressure of the lymphatic capillaries pushing interstitial fluid out to enter the systemic capillaries. the higher pressure of the lymphatic capillaries pushing interstitial fluid out to enter the systemic capillaries.
Modifications to chromatin can affect transcriptional activity by changing the accessibility of DNA to the transcription machinery. The given descriptions are examples of various processes that may or may not cause remodeling of chromatin. Match each description to the effect it has on transcriptional activity caused by chromatin remodeling. a. Activates b. Inactivates c. Activates and inactivates d. No effect1. Histone methylation occurs at different amino acids2. A transcriptional binds an enhancer sequence3. Histone acetyltransferase attach acetyl groups to the N-terminus of histones.4. Histone deacetylases remove acetyl groups from the N-terminus of histones
Answer:
1. Histone methylation occurs at different amino acids: c. Activates and inactivates
2. A transcriptional binds an enhancer sequence: d. No effect
3. Histone acetyltransferase attach acetyl groups to the N-terminus of histones: a. Activates
4. Histone deacetylases remove acetyl groups from the N-terminus of histones: b. Inactivates
Explanation:
Epigenetics refers to the mechanisms associated with changes in gene expression which do no involve alteration in DNA sequence. Epigenetic marks include DNA methylation and histone modifications (acetylation, methylation, phosphorylation, etc). These mechanisms act together in order to regulate gene expression at specific genomic sites (loci). Histone methylation is an epigenetic mark involved both in transcriptional repression and transcriptional activation. For example, trimethylation of the histone H3 at lysine 4 (H3K4me3) has been associated with transcriptional activation, while dimethylation of histone H3 at lysine 9 (H3K9me2) is often involved in transcriptional repression. Moreover, histone acetylation by histone acetyltransferases (HATs) is an epigenetic mark that is involved in transcriptional activation and chromatin decondensation, while histone deacetylation by deacetylases (HDACs ) is generally associated with gene repression. However, it is important to highlight that there are exceptions to this rule (for example, acetylation of the histone H4 lysine 20 is associated with gene repression). Finally, transcriptional activators are proteins that bind to enhancers in order to recruit coactivator proteins/complexes and thus activate transcription.
