Answer:
The correct answer is ''necrotizing fasciitis.''
Explanation:
Streptococcus pneumoniae belongs to the Streptococcaceae family. It is a Gram positive bacterium, normally facultative anaerobic, catalase negative, immobile, with an oval shape, surrounded by a capsule (does not present Lancefield antigens) and is usually grouped into chains of two (diplococcus) or more bacteria. It can give rise to a wide range of manifestations, among them, the most frequent but the least serious are upper respiratory tract infections, such as: otitis media, sinusitis, etc; while the less frequent but the most serious are: pneumococcal pneumonia, invasive pneumococcal disease, meningitis and septicemia. Necrotizing fasciitis is a rapidly progressive infection that affects the skin, subcutaneous cellular tissue, superficial and deep fascia, causing tissue necrosis and severe systemic toxicity, which, if not treated in a timely manner, is invariably fatal. The most common germs in immunocompetent people are Streptococcus pyogenes and Staphylococcus aureus. In patients with a defined gateway in the skin, the incidence of S. aureus is high. Deep necrotizing processes can be mono- or polymicrobial. In monomicrobial processes, pathogenesis is largely mediated by toxins (FN by S. pyogenes, FN by S. aureus, clostridial myonecrosis). In polymicrobial processes there is a synergism between aerobic and anaerobic germs. The most common aerobes are Enterobacteriaceae, Streptococcus group A, and S. aureus. The predominant anaerobes are Peptostreptococcus spp, Bacteroides fragilis group, Prevotella sp, Porphyromonas spp and Clostridium sp. Streptococcus pneumoniae belongs to the Streptococcaceae family.
The heart is important for transporting oxygen to the muscles when we exercise. How does the heart rate change when we go from sitting on a chair to running up the stairs?
A. The heart rate stops.
B. The heart rate gets slower.
C. The heart rate gets faster.
D. The heart rate stays the same.
Answer: C. The heart rate gets faster.
Explanation:
its true also give brainliest
The heart rate gets faster
Explanation:
C. Because when you are sitting your heart rate is chill put if you're moving really fast that means your heart rate is going up because you have to deep breaths over and over when you stop running.
Haploid cells have _____ and diploid cells have _____ of its DNA.
A.
two copies, one copy
B.
one copy, two copies
C.
two copies, four copies
D.
one copy, four copies
Answer:
B. one copy, two copies
Explanation:
Haploid is 23 chromosomes, so there is one copy of each human chromosome while diploid is 46 chromosomes, so there are two copies of each human chromosome.
Halpoid refers to a cell with a single set of chromosomes
Diploid refers to a cell with two sets of chromosomes.
What two materials does the cardiovascular system deliver to the cells of the body?
A. carbon dioxide and nutrient
B. oxygen and nutrients
C carbon dioxide and waste materials
D. oxygen and waste materials
B. It delivers nutrients and oxygen.
how is zero, oxidation numbers, and noble gases related
Of its valence electrons or the no. Of valences in its Valence shell .In case of noble gases, their outermost shell is absolutely crammed so no emptiness is available in the outer maximum shell. Thus the oxidation kingdom is 0(zero)for Noble gases. Because, they've complete electrons in their out maximum shell.
hope this helps
Compare the reproduction in Hydra and Amoeba?
Answer:
Hydra:
Reproduction by budding in Hydra.
Amoeba:
Reproduction by binary fission in Amoeba.
Hydra:
Budding means sexual reproduction in which a new organism develops from a bud in the parent.
Amoeba:
Binary fission is the type of asexual reproduction in which the parent divides to give rise to two daughter organisms.
Hydra:
In budding process, bud is simply an outgrowth of cells at one particular site.
Amoeba:
The parent replicates its genetic material and divides it equally between the two daughters in binary fission.
Hydra:
The bud or the newly formed organism remains attached to its parent until maturation.
Amoeba:
Both the cytoplasm and the nucleus of the parent divides into two.
1. Which of the following events is not a source of genetic variation in eukaryotic organisms?
J. Mutation
K. Independent assortment
L. Mitosis
M. Fertilisation
Answer:
Mitosis
Explanation:
Mitosis is not a source of genetic mutation because it take place mostly in the somatic cells. This is because it does not lead to the production of gametes . In mitosis, the parent cells divide into two daughter cells and each daughter cells are genetically identical to the parent cell because they carry the same number of chromosomes as the parent cell. There is no genetic variation in this.
How many hydrogen bonds are present in the base pairing of guanine and cytosine?
3
Answer:
3 Hydrogen bonds
Explanation:
Cytosine and guanine pairing can be found in both DNA and DNA-RNA hybrid formed during replication and transcription. The two nitrogenous bases are held together by three hydrogen bonds.
Study the following statements, which compare the method of fermentation preferred by yeasts to they type of fermentation that may occur in human muscle cells. i. Yeasts produce CO2 during fermentation, but human muscle cells do not. ii. Different metabolic end products result from the two types of fermentation. iii. Yeasts produce more ATP per glucose in their fermentation than do human muscle cells. Choose the correct answer from below.
Answer:
Only one of the three statement is true; and that is,
(ii.) Different metabolic end products result from the two types of fermentation
Explanation:
Fermentation is the process by which organic molecules such as glucose are broken down into smaller molecules to extract energy as ATP in the absence of oxygen.
Fermentation is carried out by many organisms including man.
In man, fermentation occurs in very active skeletal muscles such as in an athlete running. It involves the reduction of pyruvate produced from the glycolytic pathway to lactate in the muscles. The net yield of ATP from glucose breakdown to produce lactate is 2 ATP molecules.
In microorganisms such as yeast, the fermentation product of py ruvate derived from glycolysis is ethanol and carbon dioxide, CO₂. The net ATP yield in fermentation of glucose in yeast cells is also 2 ATP molecules.
From the options provided in the questions, the correct option is:
Only one of the three statement is true and that is that, ii. Different metabolic end products result from the two types of fermentation.
Describe how the environment (predation, shelter, wind, access to water) might affect a population/ species?
Drag the tiles to the correct boxes to complete the pairs. Identify the type of energy described in each sentence.
Pairs:
The body stores lipids ingested as fat and uses Thai energy when needed.
A persons hat falls off and lands on the ground.
A wave of water pushes a surfer to shore.
A burner on a stove heats up a tea kettle.
A power plant splits atoms to generate power for a city.
A nerve sends an impulse to another nerve.
A plant absorbs the suns rays to start the process of photosynthesis.
Tiles:
Gravitational Energy
Mechanical Energy
Chemical Energy
Electrical Energy
Thermal Energy
Nuclear Energy
Radiant Energy
Answer:
chemical energy
gravitational energy
mechanical energy
thermal energy
nuclear energy
electrical energy
radiant energy
Explanation:
Edmentum users .
Please Help!! Due soon! I need this grade
What are ancestral traits?
What is a derived trait?
Explain how organisms are placed in a cladogram.
How do genetic connections help to organize species?
What are some disadvantages of using genetics for categorization?
What is a virus?
How are viruses categorized?
List and describe the four main viral shapes.
1.
2.
3.
4.
Describe a lytic infection.
What is a lysogenic infection?
What are the steps of a lytic infection?
What are the steps of a lysogenic infection?
How are viruses used in gene therapy?
What is the main difference between bacteria and virus?
Answer:
1. An evolutionary trait that is homologous within groups of organisms (see homology) that are all descended from a common ancestor
2. Derived traits are those that just appeared (by mutation) in the most recent ancestor -- the one that gave rise to a newly formed branch.
3. A cladogram uses lines that branch off in different directions ending at a clade, a group of organisms with a last common ancestor.
4. It helps us to form a cognitive framework of understanding complexity.
5 Because it is a learned trait. For some domains, like Bacteria and Archeabacteria, DNA is transferrable
6. A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.
7 Polyhedral, Helical, Complex, Spherical
8. Sometimes referred to as temperate or non-virulent infection, does not kill the host cell, instead using it as a refuge.
Explanation:
Hope that helps sorry I could not get all of it done, but I am busy doing my school work
Which component of biodiversity takes into account the number of different habitats and niches present in an ecosystem?
Select one:
A. Genetic
B. Stabilizing
C. Ecosystem
D. Species
Answer:
D is the answer hope it helps
Explain the relationship between mutations, adaptations,
natural selection, and extinction.
Answer: A mutation results in different alleles for a gene and these different alleles will cause adaptations that may be favorable or unfavorable. If no species in an area has adaptations suited for the environment after it changes, extinction will occur.Adaptations result from random mutations in the genes of organisms. Depending on the environment, these adaptations may be favorable or unfavorable. If an adaptation is favorable, it is selected by nature and, over time, more and more organisms in a population will have it. If the environment changes so much that the adaptations of a species are no longer enough for the species to survive, extinction will occur.Mutations is very different because it results in different alleles for a gene.Adaptations is where an animals ADAPTS to an environment.Natural selection consists of overproduction,variation, favorable adaptations.extinction is when a species completely disintegrates.
Explanation:
Answer:
A mutation results in different alleles for a gene and these different alleles will cause adaptations that may be favorable or unfavorable. If no species in an area has adaptations suited for the environment after it changes, extinction will occur.Adaptations result from random mutations in the genes of organisms. Depending on the environment, these adaptations may be favorable or unfavorable. If an adaptation is favorable, it is selected by nature and, over time, more and more organisms in a population will have it. If the environment changes so much that the adaptations of a species are no longer enough for the species to survive, extinction will occur.Mutations is very different because it results in different alleles for a gene.Adaptations is where an animals ADAPTS to an environment.Natural selection consists of overproduction,variation, favorable adaptations.extinction is when a species completely disintegrates.
Explanation: got it on ed :)
what is cell and its function
Cells are the basic building blocks of all living things.
They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions.
[tex]\sf\huge\underline\purple{Cell:-}[/tex]
Definition:-
“A cell is defined as the smallest, basic unit of life that is responsible for all of life’s processes.”[tex]\rightarrow[/tex] Cells are the structural, functional, and biological units of all living beings. A cell can replicate itself independently. Hence, they are known as the building blocks of life.
[tex]\rightarrow[/tex]Each cell contains a fluid called the cytoplasm, which is enclosed by a membrane. Also present in the cytoplasm are several biomolecules like proteins, nucleic acids and lipids.
[tex]\sf\large\underline\purple{Functions:-}[/tex]
Following are the various essential functions of cells:
Cells provide structure and support to the body of an organism.The cell interior is organised into different individual organelles surrounded by a separate membrane.The nucleus (major organelle) holds genetic information necessary for reproduction and cell growth.Every cell has one nucleus and membrane-bound organelles in the cytoplasm.Mitochondria, a double membrane-bound organelle is mainly responsible for the energy transactions vital for the survival of the cell.Lysosomes digest unwanted materials in the cell.______________________________
Which of the following which of the following organism would be in the first trophic
level?
a caterpillar
b mouse
C bee
d maple tree
Answer:
D
Explanation:
The first trophic level is the producer, which makes its own food, so it has to be a plant / algae / cyanobacteria
What are the products in 6CO2 + 6H2O C6H12O6 + 6O2
Answer:
the product of photosynthesis is starch(sugar) and oxygen.
Name the stage (include the I or II in the name)
Explanation:
1. Prophase I
2.Interphase
3.Anaphase I
4.Anaphase
5.Telophase II
6.Prophase I
Is the following sentence true or false? Liquid magma is formed when small amounts of mantle rock melt?
Answer:
Absolutely True!
Explanation:
which of the following best describes a frameshift mutation. A. When a segment of nitrogen bases gets added into a strand of DNA. B. When a segment of nitrogen bases gets removed from a strand of DNA. C. When a segment of a chromosome gets removed. D. Both A and B.
How is the instructions for your traits carried on a DNA molecule?
Sequence of the nitrogen bases
In the bond between the phosphate and the sugar
O In the Deoxyribose Sugar
O In the phosphate group
Sequence of the nitrogen bases
What is not a cause of wind?
Answer:
can u explain it more I might know the answer
When considering the entire period of time during which life on Earth has been evolving, we must look at:
thousands of years
hundreds of millions of years
hundreds of years
billions of years
millions of years
Answer:
we must look at billions of years
When considering the entire period of time during which life on Earth has been evolving, we must look at: D. billions of years.
Evolution can be defined as a process of gradual change in the characteristics of various species of living organism over several generations.
Basically, these characteristics refer to gene expressions that are typically transferred from parent organisms to their offspring or successive generations.
The earliest life forms known to humans existed about 3.7 billion years ago and they are microscopic organisms (microbes) whose fossils were found on rocks.
In conclusion, when you are considering the entire period of time during which life on Earth has been evolving, you must look at billions of years.
Read more: https://brainly.com/question/23088172
state two functions of bile juice in digestion of food
Answer:
1. breaks down fats for digestion
2. it obliterates bacteria
Explanation:
What is the primary source of energy for all food chains?
Answer:
sunn
Explanation:
this is my alt acc
Which units are used in a pyramid of biomass?
A Individuals
B. g C/m2
C. m/s2
D. Klocalories
Answer:
g/m2 is the unit used in a pyramid of biomass. Kilocalories is Unit of measure for energy pyramids
which role do plants play in the nitrogen cycle?
Answer:
C .they take up the usable forms of nitrogen found in the soil .
Explanation:
The____ of an ecosystem is based on wheather the population in the system destorys the natural resources of the system
Answer: immense
immense in the blank
please make me brainliest
These weeds are growing in a farmer's field. The weeds compete with the soybean plants the farmer grows, so he needs to get rid of them. For a few years, the former relies on manually removing the woods, but that is labor intensive and limits how much crop he can grow. The farmer decided to change his crop to genetically modified soybeans that are herbicide resistant. This allows the farmer to use chemicals to remove the weeds. With this GM soybean, the chemical kills the woods but does not harm the crop. For many years this works, and allows the farmer to expand his farm and grow more soybeans. But then, one of the farmer's fields has a large weed plant remaining after the field has been sprayed with herbicide
1. Which of the following is the likely reason the weed has remained?
a. The weed needed to be resistant in order to survive, so it became resistant
b. A mutation appeared in one weed plant that made that weed not susceptible to the herbicide
2. Which of the following is likely to happen if that weed stays in place?
a. The trait will spread to nearby weeds
b. The weed will survive long enough to reproduce
c. In time, the herbicide will no longer be effective on that field.
Answer:
1) A mutation appeared in one weed plant that made that weed not susceptible to the herbicide ( B )
2) The weed will survive long enough to reproduce ( B )
Explanation:
1) The most likely reason the weed remained is : A mutation appeared in one weed plant that made that weed not susceptible to the herbicide
The weed plant must have undergone some mutation in order to be resistant to the herbicide which would kill the weed before now
2) The most likely thing that will happen if the weed stays in place in that farm is : The weed will survive long enough to reproduce
The trait or mutation of the weed cannot just spread to other weeds nearby it can only spread by reproducing more weeds of same mutation
None of the above
5) Which of the following statements is true?
a. An ecosystem is an area where abiotic components (from organic or living source) and
biotic components (from inorganic or non-living source) interact between interdependent
subsystems within a spatially regulated organisation using energy from the sun and a
b. An ecosystem is an area where biotic components (from inorganic or living source) and
abiotic components (from organic or non-living source) interact between dependent
subsystems within a spatially regulated organisation using energy from the sun and a
variety of raw materials.
variety of raw materials.
C. An ecosystem is an area where biotic components (from organic or non-living source)
and abiotic components (from inorganic or living source) interact between interdependent
subsystems within a spatially regulated organisation using energy from the sun and a
variety of raw materials.
d. An ecosystem is an area where biotic components (from organic or living source) and
abiotic components (from inorganic or non-living source) interact between interdependent
subsystems within a spatially regulated organisation using energy from the sun and a
variety of raw materials.
e. An ecosystem is an area where biotic components (from organic or living source) and
abiotic components (from organic or living source) interact between interested dependent
subsystems within a spatially regulated organisation using energy from the sun and a
variety of raw materials.
Answer:
E
Explanation:
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