Answer:
D
Explanation:
The antibiotics are targeting bacteria that are not resistant to the antibiotic and any that are will survive treatment. Bacteria can reproduce and share their resistance quickly.
A scientist has been tracking and studying a population of deer in Yellowstone National Park. He surveys the population every six months. Usually, the population is thriving and has a gene pool with a wide variety of traits. But during one six-month period, an event occurred that affected the population, and when the scientist returned, the amount of genetic variation had decreased significantly. Which of the following is most likely the event that occurred to change the population? Yellowstone National Park expanded its borders. A population of wolves was introduced into Yellowstone National Park. The amount of disease in the deer population decreased. More grass and shrubs were planted in Yellowstone National Park.
Answer:
[tex]\boxed {\boxed {\sf B. \ A \ population \ of \ wolves \ was \ introduced \ to \ Yellowstone \ National \ Park }}[/tex]
Explanation:
Let's evaluate each choice. Remember we are looking for an event to decrease the genetic variation and population.
A. Yellowstone expanded its borders
If the park expanded, it's likely the population would increase. There would be more space and resources for the deer.B. A population of wolves was introduced
A wolf is a predator that preys on deer. If they were introduced, they would use the deer as a food source and decrease the population.B seems like a good answer, but let's check the others.
C. The amount of disease in the deer population decreased.
This would help the deer population. Less disease means fewer deaths and a greater population.D. More grass and shrubs were planted in Yellowstone
Deer are herbivores, so grass and shrubs would provide more food. This would keep the deer nourished and healthy, meaning a greater population.The best answer choice is B: A population of wolves was introduced into Yellowstone National Park
Answer:
answer B is correct I just took the test!
In one or two sentences, explain how the chemical equation for cellular respiration shows that plants cycle matter. Include the numbers of molecules and atoms involved to support your explanation.(2 points)
Hello user!
Cellular Respiration Equation is,
Cellular Respiration: C6H12O6 + 6O2 → 6CO2 + 6H2O
Also if u even forget what is the equation of it just remember that it is the opposite of photosynthesis
Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules and complex structures into adenosine triphosphate (ATP), and then release waste products. Remember when complex substances are broken down into simpler it releases energy. The enzymatic reactions of cellular respiration begin in the cytoplasm, but most of the reactions occur in the mitochondria. Cellular respiration occurs in the double-membrane organelle called the mitochondrion. The folds in the inner membrane are called cristae. plz mark brainlist
Cellular Respiration Equation is,
Cellular Respiration: C6H12O6 + 6O2 → 6CO2 + 6H2O
What do you mean by cellular respiration?Cellular respiration is the process by which biological fuels are oxidised in the presence of an inorganic electron acceptor such as oxygen to produce large amounts of energy, to drive the bulk production of ATP.
Cellular respiration is a series of chemical reactions that break down glucose to produce ATP, which may be used as energy to power many reactions throughout the body.
There are three main steps of cellular respiration: glycolysis, the citric acid cycle, and oxidative phosphorylation.
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How are amphibians different from reptiles?
a) They do not breathe using lungs.
b) They cannot be fully terrestrial.
c) They do not have a backbone.
d) They are not ectothermie.
Answer: b) They cannot be fully terrestrial
Explanation:
I took the test
Amphibians are different from reptiles because the amphibians do not breathe using lungs however reptiles have lungs which help them breathe on land. Thus, the correct option is A.
What are the characteristics of Amphibians?
Amphibians are the four-limbed, ectothermic vertebrates who belongs to the Amphibia class of Phylum Vertebrata. All the living amphibians belong to the group Lissamphibia. They inhabit a wide range of habitats, with most of the species living within terrestrial, fossorial, or freshwater aquatic ecosystems.
Amphibians are different from reptiles in characteristics such as amphibians lay eggs in the water, and their young ones have gills which help them to survive in the water. They venture onto land only when fully mature. Reptiles, on the other hand, have adapted to live completely on the dry land. They are viviparous and breathe through lungs and not gills.
Therefore, the correct option is A.
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The brain, bones, and muscles work together to help people move. What other organs work together to support movement in the body?
A
liver and lungs
B
liver and bladder
C
heart and bladder
D
heart and lungs
The diagram shows a cross section of a eukaryotic cell.
Cytoplasm
How does the cytoplasm interact with the other organelles in the cell?
A. Cytoplasm creates lipids that are absorbed by other organelles in the cell.
B. Cytoplasm removes waste from other organelles and transports it out of the cell.
C.
Cytoplasm translates genetic information into proteins for other organelles in the cell.
D
Cytoplasm provides support to the other organelles and helps maintain the shape of the cell.
‼️PLSS HELP!! ASAP!‼️What would be a possible disadvantage of asexual reproduction?
A. Ability to reproduce in the absence of a mate
B. Results in low genetic of the space
C. Allows for more genetic variation in the offspring
D. Takes less time to produce offspring
Answer:
I think B
Explanation:
A dosen't make sense. If you are asexual you are not attracted to either gender. So, you could not reproduce unless (*cOuGH cOuGh*) ya get it.
05: describe the methods employed to reduce fatality in patients carrying the gene for familial breast and ovarian cancer.
Another method for lowering the risk of breast cancer in mutation carriers is chemotherapy.
The greatest potential benefit has been linked to risk-reducing surgery for women who have a gene mutation that increases their risk of breast cancer.
What is Breast and ovarian cancer ?An inherited cancer-predisposition condition is the hereditary breast and ovarian cancer (HBOC) syndrome. Affected people are far more likely to acquire specific types of cancer, especially ovarian cancer in women and breast cancer in both men and women.
BRCA1 and BRCA2 are the two main genes associated with the majority of families with HBOC. Breast cancer is referred to as BRCA. A woman has a higher lifetime risk of getting breast and ovarian cancer if she has either a BRCA1 or BRCA2 "mutation," or unfavourable genetic alteration.Learn more about Ovarian cancer here:
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Identify three factors that affect the Jet Stream.
Answer
The seasons of the year, location of low and high pressure systems and air temperature all affect when and where a jet stream travels. Jet streams form a border between hot and cold air.
Explanation:
brainlist??
The table shows a DNA sequence and three types of mutations that can change the DNA sequence.
Which mutation will cause translation to stop?
Answer: The answer is sample 1 if I’m not mistaken
Explanation:
Because it is :) but yeah...
sample 1 mutation will cause translation to stop. nonsense mutation can cause the termination of translation
What is mutation ?Mutations are defined as the change in the nucleotide sequence of genetic material due to different process such as substitution, deletion or insertion of the nucleotides leading to changed or faulty protein.
The type of mutations leads to the early and delayed termination of the transcription of a gene, mutation of a single nucleotide leads to termination of transcription otherwise called as nonsense mutation.
If a mutation shows no effect on the protein, known as the silent mutation.
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1. Under unfavourable conditions, microorganisms
form a—— around themselves
Answer:
Under unfavourable conditions, microorganisms form a cyst around themselves.
Explain over production and reproduction
Explanation:
Overproduction in Natural SelectionNatural selection occurs in specific populations of organisms because of several factors. It begins with overproduction. Overproduction by definition, in biology, means that each generation has more offspring than can be supported by the environment. Because of this, competition takes place for limited resources. Individuals have traits that are passed down to offspring. Some of these traits give individuals an advantage when it comes to surviving to reproduce. The organisms with these traits are more likely to live and have offspring who will inherit the helpful traits.
if scientists wnat to solve an eviromental proble, they are most likely to use___
If scientists want to solve an environmental problem, they are most likely to use the scientific method.
What is the scientific method?The scientific method is defined as a series of sequential steps used by scientists to collect empirical data and evidence that serves to raise questions that emerged from observations of the real world.
In conclusion, if scientists want to solve an environmental problem, they are most likely to use the scientific method.
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How does increasing thermal energy affect kinetic energy AND the rate of particle movement?
I'm in first grade so please answer this question as a 7-year-old would. thanks
The particles gather kinetic energy and accelerate as the temperature rises. The actual average speed of the particles is influenced by both their mass and temperature; at a given temperature, larger particles travel more slowly than lighter ones.
What is the kinetic energy?A particle or an item that is in motion has a sort of energy called kinetic energy. When work, which entails the transfer of energy, is done on an object by applying a net force, that object acquires kinetic energy.
The relationship between a substance's temperature and its average particle kinetic energy is direct. These particles must move more quickly as the temperature rises because their mass is constant.
Therefore, increasing thermal energy affect kinetic energy AND the rate of particle movement.
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what is the name for the tendency of a mineral to break,creating a new smooth edge
Answer: Mineral Cleavage
Explanation: Cleavage is the tendency for a crystalline solid to break along smooth, even flat surfaces. These are correctly known as planes of weakness. Cleavage planes are the lines of weakness in the structure of a crystal.
What are the advantages of the simple streak technique?
Answer:
There isn't really any.
Explanation:
Except it give you fun little facts that are actually really cool
Which pathway is correct?
1) DNA to rna to proteins
2) rna to dna to proteins
3) proteins to RNA to DNA
4) dna to proteins to rna
Placing solar panels on the roof of every home would be beneficial to the environment because:
Select one:
Solar panels produce energy but not greenhouse gases.
Solar panels increase the greenhouse effect.
Solar panels allow homes to be warmer in temperature.
Solar panels allow homes to be cooler in temperature.
Placing solar panels on the roof of every home would be beneficial to the environment because solar panels produce energy but not greenhouse gases.
What are Solar panels?Solar panels are structures composed of materials capable of absorbing solar radiation in order to be converted into electricity, thereby representing a renewable source of energy.
In conclusion, Placing solar panels on the roof of every home would be beneficial to the environment because solar panels produce energy but not greenhouse gases.
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Please help me with this it’s the last one I need
Answer:
species
Explanation:
please mark me brainliest and 5 star
patterns and location of velopharyngeal valving problems: atypical findings on video nasopharyngoscopy
In 246 consecutive nasopharyngoscopy examinations, patterns of velopharyngeal (VP) valving and the location of velopharyngeal gaps were examined.
Velopharyngeal: What is it?Normal speech production depends heavily on the velopharyngeal valve. The structures that make up this valve are as follows:
Velum (also called soft palate) The side walls of the throat are called lateral pharyngeal walls. The back wall of the throat is known as the posterior pharyngeal wall.The coronal pattern of closure predominated (68%) and was followed by circular (23%), circular with a Passavant's ridge (5%) patterns, as well as sagittal (4%) patterns. In 181 patients, gaps were discovered, in 121, they were deemed typical (centrally located), in 28, they were in one of the lateral aspects of the valve, and in 32, they were attributed to abnormalities in the anatomy or function of the posterior border of the soft palate or to the shape of the adenoid tissue. Patients with a coronal valving pattern tended to have abnormal results. These findings highlight additional concerns regarding the care of patients with unusual valving issues.
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Situation 2: If your blood sugar gets too high or low, your pancreas releases a hormone
(either insulin or glucagon) to return the blood sugar back to normal.
A. Negative feedback
B. Positive feed back
I GIVE BRAINLIEST
Help please
Answer:
19.00
Explanation:
the answer is d because in most periodic table the atomic mass is below
Answer:
19 (D)
Explanation:
It is the one with the 19 on the periodic table and it is atomic below it.
the inner membrane of the mitochondria in muscle cells should have more folds to increase the surfac
The inner membrane of the mitochondria in muscle cells should have more folds to increase the surface area, that will allow the production of more ATP.
Mitochondria is the double membranous cell organelle, found in eukaryotes. The inner membrane has various folding called cristae to increase the surface area. It also exhibits the ATP synthase enzyme, therefore due to folding the ATP synthesis process is maximized by many folds.
ATP is the energy currency of the cell. Its full form is Adenosine Triphosphate. The cell breaks down glucose to form the ATP and perform all the vital processes in the body.
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What features do all cells have?
Answer: plasma membrane
Explanation: an outer covering that separates the cell's interior from its surrounding environment.
Answer:
All cells share four common components: (1) a plasma membrane, an outer covering that separates the cell’s interior from its surrounding environment; (2) cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found; (3) DNA, the genetic material of the cell; and (4) ribosomes, particles that synthesize proteins. However, prokaryotes differ from eukaryotic cells in several ways.
Explanation:
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how to get a fever in an hour or less
(other then the onion/garlic trick I tried it and it didn't work)
ASAP I'll mark branliest
Answer:
Expecting you are from India or any cold countries,just bath in ice cold water and and dry yourself as many time you can until you feel dizzy or feverish.Explanation:
I hope l helped you ❤❤a web of proteins in the cytoplasm that keeps a cell's membrane from collapsing is a?
Answer: Cytoskeleton
Explanation: The cytoskeleton is the web of proteins in the cytoplasm. -It acts as a muscle and a skeleton. -It keeps the cell membrane from collapsing.
What would happen to the moons orbit if the sun suddenly disappeared? GIVING BRANLIEST!!!.
Answer:
If that were true, then the first thing that would happen when the sun disappeared is that Earth, along with all the other planets, would go flying off into space. It would be complete and utter chaos in our solar system. ... Therefore, we would still see the sun in our sky eight minutes after it was gone.
Hope this helps! :) )
Which of the following structures have a role in plant reproduction?
-cones, fruit, seeds, flowers
-cones, flowers, roots, stems
-fruit, stems, seeds, stomata
-stomata, cambia, leaves, fruit
Answer:
Fruit stems seeds stomata can i have brainiest
Explanation:
Answer:
C) Fruit, Stems, Seeds, Stomata. ❤
Why have the tortoises evolved on the Galapagos Islands?
Answer:
The splitting of context es and better envirnment for them more adaptfull
Explanation:
inhibition of proteolysis enhances aluminum-induced perikaryal neurofilament accumulation but does not enhance tau accumulation
AlCl₃-induced aberrant phosphorylation of Tau is degraded by the ubiquitin-proteasome pathway (UPP), however this process is site-specific and varies in different types of cells.
Why does aluminum cause an increase in perikaryal neurofilaments but not tau accumulation?Phosphorylated neurofilament (NF) epitopes are typically clustered within the axonal cytoskeleton of NB₂a/d₁ cells, as has been seen for neurons in situ. However, following exposure to aluminum salts and proteolysis inhibition, accumulations of phosphorylated NFs form in NB₂a/d1 perikarya. In the current study, we found that perikarya of cells exposed to both aluminum and the protease inhibitor C₁ (also known as "AllNal") were more strongly labeled by monoclonal antibodies directed against both non-phosphorylated and phosphorylated epitopes than cells treated with either aluminum or the protease inhibitor alone.
We also immunostained cells treated under these conditions with monoclonal antibodies targeted against phosphate-insensitive (5E2) and phosphorylated (PHF-1) tau epitopes because these monoclonal antibodies cross-react with tau. A rise in 5E2 immunoreactivity indicated that aluminum therapy, but not C₁ treatment, caused an accumulation of total tau isoforms. PHF-1 immunoreactivity was not increased by either medication, whether used alone or in combination. According to these results, changes in immunoreactivity with SMI antibodies corresponded to a rise in NF epitopes. Analyses using an immunoblot confirmed this. These findings suggest that deficiencies in proteolytic mechanisms contribute to the development of neurofibrillary pathology and highlight the possibility of multiple etiologies for human neuropathological conditions because proteolysis is apparently essential for maintaining the normal distribution patterns of phosphorylated NF epitopes.
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recamonde-mendoza, m., a.v. werhli, and a. biolo, systems biology approach identifies key regulators and the interplay between mirnas and transcription factors for pathological cardiac hypertrophy. gene, 2019
The increased heart failure risk and sudden cardiac death are associated with Pathological cardiac hypertrophy.
Many transcription factors and miRNAs were implicated in cardiac hypertrophy, and In gene expression regulation their high combinatorial action is becoming more clear. Parallel expression profiles for messenger RNA (mRNA) and miRNAs were integrated from an in vitro model of cardiac hypertrophy with experimentally validated interactions from seven curated databases in order to build the cardiac hypertrophy-related transcription factors -miRNA regulatory network. Based on Borda count aggregation of distinct network-based properties they suggested a completely unsupervised technique to identify core regulatory elements.
By combining node scores derived from active pathways, motif-based centrality, and k-shell index which was able to prioritize biologically meaningful transcription factors and miRNAs as central nodes in the point potential active and network regulatory pathways in cardiac hypertrophy. Moreover, we identified recurrent associations in the crosstalk feed-forward loop motifs between transcription factors and miRNAs.Most transcription factors and miRNAs were immersed in specific interconnection patterns.
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