Answer:
The correct answer would be - "bacterial populations evolve in response to the selection pressure imposed by antibiotics".
Explanation:
The given information provided in the question about the bacterial infection supports the hypothesis that the bacterial population shows the evolution in response to the selection pressure caused by the antibiotics due to the fact that bacteria increased resistance gradually with time. This resistance towards antibiotics increased the percentage of bacterially infected children in the late 1980s and early 1990s.
In this case, the population of bacteria having resistance genes is selected to evolved selected to increase their offsprings.
6. Which is the youngest holiday: "Earth Day" or "Arbor Day"?
HELP!!!! QUICK PLEASE ILL GIVE BRAINLIEST
Each tissue and organ in the body has a function, and its metabolism is adapted to its function. For example, one tissue may synthesize fatty acids that are stored and oxidized by another tissue. Classify each phrase as describing the liver, adipose tissue, muscle tissue, the brain, or blood.
my brain can't process this lol
The brain is the tissue in the human body that cannot use fatty acid or glycogen as energy source.
Adipose Tissue:
These tissue store fat and use fat as the energy source.
Muscle:
It generate ATP as energy to provide energy for contraction.
Blood :
It transport nutrients and other metabolic substances between tissue and organ.
It process the
Brain:
It is the organ that cannot use fatty acid or glycogen as energy source,
Liver:
Use fatty acid, glucose or ketone bodies as fuel to generate energy.
Therefore, the brain is the tissue in the human body that cannot use fatty acid or glycogen as energy source.
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Signal Sequences: 1)A signal sequence is made of: a.Nucleotides b.Amino acids c.Lipids d.Carbohydrates 2)All protein synthesis starts on ribosomes that are located in the _________________. 3)If a molecule lacks a signal sequence it will end up in the ______________ 4)Proteins with a nuclear localization sequence (NLS) are generated on ribosomes located in the ___________________. 5)Proteins with a mitochondrial signal sequence are generated in ribosomes located in the _________________.
Answer:
1. Option B
2. cytoplasm
3. cytosol
4. nucleus
5. mitochondria
Explanation:
1. Option B
A signal sequence consists of hydrophobic amino acids .
2. cytoplasm in prokaryotes
3. cytosol
4. nucleus
5. mitochondria
What is the functions of the digestive, excretory, respiratory, circulatory, and lymphatic systems, and how do they interact to maintain the body's homeostasis?
Explanation:
Food and liquids are processed by the digestive system. After nutrients are absorbed during digestion, the excretory system removes solid waste products, or feces, through the rectum. The excretory system also works with the respiratory and circulatory systems and removes carbon dioxide (CO2) from the body.
Homeostasis, which refers to the body's capacity to maintain a steady internal environment despite changes in the external environment, is a state that is maintained by the respiratory, circulatory, lymphatic, excretory, and digestive systems working in concert. Although each of these systems has a unique job to do, they are all interrelated and dependent on one another to keep the body running smoothly.
What is a digestive system charge of ?The digestive system is in charge of converting food into nutrients that the body can absorb. It consists of the liver, pancreas, small and large intestines, stomach, mouth, oesophagus, and stomach. After then, the circulatory system delivers nutrients to the body's cells.
The kidneys, ureters, bladder, and urethra are part of it. The circulatory system and the excretory system collaborate closely to move waste materials to the kidneys for filtering and expulsion from the body.
The respiratory system is in charge of supplying the body with oxygen and expelling carbon dioxide. It consists of the lungs, trachea, bronchi, nose, and mouth. The respiratory system collaborates with the circulatory system to eliminate carbon dioxide and provide oxygen to the body's cells.
Nutrients, oxygen, and waste products are moved throughout the body through the circulatory system. It consists of the blood, blood vessels, and the heart. To provide nutrition and oxygen to the cells and eliminate waste, the circulatory system collaborates closely with the respiratory and digestive systems.
It is the job of the lymphatic system to remove extra fluid from bodily tissues and transport it back to the circulatory system. It consists of lymphatic organs like the spleen and thymus, lymph nodes, and lymphatic arteries. The lymphatic system contributes to immunological function and aids in the body's defence against illnesses and infections.
Overall, through controlling the body's internal environment, these systems cooperate to preserve homeostasis. For instance, the excretory system eliminates waste while the digestive system supplies nutrients for the body. These nutrients and waste materials are delivered to and removed from the body's cells via the circulatory system. The lymphatic system helps the body fight infections while the respiratory system supplies oxygen for cellular respiration.
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mixing carbon and iron to make steel is a physical change or chemical change
Green eyes and brown eyes are two different forms of a single gene. This is an example of what?
1.alleles
2.chromosomes
3.genes
4.DNA
Answer:
Chromosomes
Explanation:
Chromosome 15 is what plays a major role in eye color
Please help!! I'll give brainlist!!!
Answer:
C. The Bluegill population would increase, but the other organisms would not be affected.
Explanation:
Bluegill are eaten by bass. Bass would be what keeps the Bluegill population under control, but with the bass population decreasing, Bluegill would eventually overpopulate.
help pliz :3 I need your help and thank you <3
Answer:
need to answer all??tell
antipyretics such as ibuprofen and acetaminophen work in which of the following manners?
Answer:
Decrease production of prostaglandins
Explanation:
Match the statements on the left to the choices on the right.
Increase transcription of a gene. [ Choose ]
DNA binding protein [ Choose ]
Block the promoter region of a gene. [ Choose ]
Found associated with the gene encoding HCl production in a skin cell. [ Choose ]
Found associated with the genes encoding hemoglobin in a red blood cell [ Choose ]
Answer:
Increase transcription of a gene - Activator
DNA binding protein - Ribosome
Block the promoter region of a gene - Repressor
Found associated with the gene encoding HCI production in a skin cell - mRNA
Found associated with the genes encoding hemoglobin in a red blood cell - mRNA
Explanation:
Hemoglobin is an iron containing compound present in red blood cells which carries oxygen in the body. mRNA molecule contains exon coding for two proteins. mRNA molecule becomes associated with four to six ribosomes.
The statements on the left are correctly matched with the choices given on the right are:
Increase the transcription of a gene -------- Activator.DNA binding protein ------ Ribosome, Polymerases.Block the promoter region of a gene ------ Repressor. Found associated with the gene encoding HCl production in a skin cell -------- mRNAs.Found associated with the genes encoding hemoglobin in a red blood cell -------- mRNAs.What do you mean by a Gene?
A gene is a basic unit of heredity and a sequence of nucleotides in DNA that encodes the synthesis of a gene product, either RNA or protein.
An activator is known to increase the transcription of a gene, while a repressor binds to the promoter region and inhibits the transcription process. The molecules of mRNA get associated with the gene HBA, HBB which encodes for hemoglobin in red blood cells. Ribosomes and polymerases are known for DNA binding protein.
Therefore, above are all the statements on the left that are correctly matched with the choices given on the right.
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What are the similarities between the coastal oceans and coral reefs
Answer:A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. ... Unlike sea anemones, corals secrete hard carbonate exoskeletons that support and protect the coral.
Coastal oceans are commonly defined as the areas from the shoreline to the outer edge of the continental margin. They connect the continents to the open ocean and serve as a link for transporting organic and inorganic, natural and anthropogenic material from land to sea.
Coastal oceans in tropical areas have similar characteristics to their temperate counterparts. ... Coral reefs are biologically diverse and rich habitats that occur in relatively nutrient-poor environments along coastlines. Areas that have too many nutrients often harbor too much algal growth to sustain coral growth.,
What do you think of when you hear the word heat?
Answer:
A Fireplace, the desert heat or the song "heat"
Explanation:
Answer:
ice cream and ac, heat comes to my mind as heat wave and those are horrible... they are monsters
Explanation:
describe the structure of the ovule and the formation of the embryo sac
brainliest to the first well detailed correct answer
Answer:
An embryo sac is said to form when the haploid megaspore nucleus divides. It possesses two haploid nuclei and six haploid cells which do not have cell walls.
Explanation:
List the effects of collecting and burning fossil fuels.
Answer:
mix with rain water in clouds and form acids
release unburnt carbon particles
This cause asthma
habitat destruction increased
volcanic activity air pollution add to greenhouse effect water pollution
major driver of climate change
creates climate change and releases pollutants that lead to early death, heart attacks, respiratory disorders, stroke
Explanation:
A segment of a DNA strand is shown
3’ AGGTCAGGT 5’
Which of these is the correct complementary DNA strand for the segments shown?
A)5’ AGGYCAGGT 3’
B)5’ ACCUGAGGU 3’
C)5’ TGGACTGGA 3’
D)5’ TCCACTCCA 3’
Answer:
5’ TCCAGTCCA 3’
Explanation:
The correct complementary DNA strand for segment 3’ AGGTCAGGT 5’ is 5’ TCCACTCCA 3’. Thus, the correct option for this question is D.
What is a Complementary DNA strand?A complementary DNA strand may be defined as a type of DNA strand in which the series of the constituent molecules on one strand of the double-stranded structure is chemically similar to the sequence on the other strand.
According to Chargaff's rule, the complementary DNA strand is formed with the concept of base pairing, where Adenine is complementary to Thymine and cytosine is complementary to Guanine.
Due to this, A=T, G=C, G=C, T=A, C=G, A=T, G=C, G=C, and T=A. This matches option four given in the question.
Therefore, the correct complementary DNA strand for segment 3’ AGGTCAGGT 5’ is 5’ TCCACTCCA 3’. Thus, the correct option for this question is D.
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Siphos brother is an actor.
Answer:
good for siphos lol
Explanation:
1. Sunlight heats the Earth using _______________ heat transfers.
A.Convection
B. Radiation
C. Conduction
Explain your answer for #1 in detail.
Answer:
b radiation
Explanation:
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Which of the following was a control variable in this experiment?
A Type of soil
B Amount of water
C Height of plants
Answer:
b
Explanation:
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Molecular formula of 5 glucose molecule
What came first? The chicken, or the egg?
:3
Answer:
easy
Explanation:
the egg obviously
WHAT HAPPENS WHEN THERE ARE EXTRA CHROMOSOMES IN A KARYOTYPE?
Answer: For example, an extra copy of chromosome 21 causes Down syndrome (trisomy 21). Chromosomal abnormalities can also cause miscarriage, disease, or problems in growth or development. The most common type of chromosomal abnormality is known as aneuploidy, an abnormal chromosome number due to an extra or missing chromosome. brainliest?
Explanation:
Match the statement with the correct term from the list.
Any ____________ is a blank that you are filling with a choice from the list. Choices may be used once, more than once or not at all.
1. Enzyme which transcribes DNA ______________
2. Location of transcription in a eukaryotic cell __________
3. Specific sub cellular structure completes translation _____________
4. Product of transcription ___________
5. Transportation of amino acids _____________
6. Product of translation ____________
7. Druing translation complimentary base pairing occurs between mRNA and ______________
8. Start codon for translation_________
Answer:
Explanation:
1.RIbonucliec acid (RNA) polymerase
2. Nucleus
3. Ribosome
4. Intermediate messanger RNA(mRNA)
5. tRNA(transfer RNA)
6. Amino acids
7. tRNA that specifies for each codon of amino acids read on the mRNA
8. 5'AUG Methionine
RNA polymerase is the enzyme that helps in transcribing DNA and it occur in the nucleus before it is being transferred to the ribosome where translation occurs. The end product of translation is amino acids who are functional protein.
Explain the difference between a data table and a graph.
When do you use a data table?
When do you use a graph?
HELP ME!!!
Answer:
A data table is a visual instrument comprised of labeled columns and rows, while a graph is a diagram showing the relation between variable quantities, typically of two variables, each measured along one of a pair of axes at right angles.
They are used for different purposes, depending on the problem
A data table is a visual instrument comprised of labeled columns and rows, while a graph is a diagram showing the relation between variable quantities, typically of two variables, each measured along one of a pair of axes at right angles.
Which animal in a pond food chain would be on the same trophic level as a snake in a grassland ecosystem?
(A) Algae
(B) mosquito larva
(C) fish
(D) racoon
In a pond food chain ecosystem, a fish feed on mosquito, a producer. The fish may get eaten by a racoon, which in turn is consumed by a snake. In a pond, algae is autotroph. So the correct option is D (racoon).
What is trophic level in ecosystem?
Trophic level is defined as the ranking of an organism in the food chain and which differ from a value of 1 for primary producers to 5 for marine humans or mammals.
Racoon is mammal and omnivorous whereas the snake is carnivorous animal. In a pond ecosystems, the biomass pyramid is inverted.
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That’s the right answer for that question
Answer:
ok better learn from your mistakes
Explanation:
A 1.0-kb DNA fragment from the 5' end of the mouse gene is examined by DNA footprint protection analysis. Two samples are end-labeled with 32P, and one of the two is mixed with TFIIB, TFIID, and RNA polymerase II. Both samples are exposed to DNase I. The results are displayed below. The DNA exposed to proteins is run in the right-hand lane of the gel. Control DNA is in the left-hand lane.
Required:
What length of DNA is bound by the transcriptional proteins?
Answer:
Explanation:
Proteins, such as RNA (ribonucleic acid) polymerase, were loaded into lane 2. TFIIB and TFIID are two forms of TFII. These proteins attach to the fragment of DNA. Furthermore, these proteins shield DNA from the DNase enzyme, which may trigger DNA to split. As a result of the above findings, we may conclude that the inserting proteins(RNA polymerase, TFIID and TR 8 proteins) cover the area between 500 and 800 bp (base pair) in the DNase I footprinting experiment.
As a consequence, the length duration is 300bp since the promoter area is about 500-800bp and is not digested by DNase after incubation of inserting proteins.
Plzzzz help me with this (the words to fill the blank are at the top)
Answer:
The organisms and environments that make up a community, called an *ecosystem*, are constantly changing. Sudden and violent events, such as *storm surges or tornadoes* and *put the second option on whatever you choose first*. *Flooding* results when rainfall exceeds the holding capacity of a drainage system. *Hurricanes* are storms that develop over warm water. Tree's and plants are *uprooted* from the ground. By studying the histories of violent storms, *meteorologists*...
Explanation:
I did the most I could. I hope it helps!
3
The cell shown in the diagram is a protist called euglena. Early scientists were not sure how to classify
this organism. What is one way that euglena cells are similar to plant cells, and one way they are similar
to animal cells?
all of the following gases are naturally occurring in the atmosphere EXCEPT—
a) CO2
b) H2O
c) NO2
d) CFCs
Answer:
CFCs
Explanation:
because CO2,H20,NO2 are all naturally occurring and CFCs are man made
1.
If a person gets a stab wound to the chest cavity where the lungs are located, how
would this affect the person's ability to breathe? Why?
2. Explain how a build-up of mucus in the bronchi can affect your daily activities.
3. Explain how a problem in your respiratory system can affect your circulatory
system
Answer:stop use brainly for cheat n go do your own work
Explanation: