Options
A. Mitosis
B. Meiosis
C. Apoptosis
D. Phagocytosis
Answer:
A
Explanation:
Mitosis is a type of cell division which takes place in living organism during growth and development.Therefore it is ensures the regenerations of cells and tissues during healing.
Therefore the restoration of new cells to the skin following injuries is due to mitosis.Since this is a multiplication division(2n) in which the daughter cells are exactly like the parents' cells the new tissues of the skin by mitosis, look exactly like the previous one that was injured.
In cases where the mitotic growth control is lost, the scare tissues of the injured part overgrows with granulation tissues and this leads to Kaloids.
Its is a mass of Collagen Type 1.(Collagen is an fibrous proteins which has largest proportion in mammals).
Keloids is characterized with pink or red coloration and elevation of the area,excessive growth of the area, with irritating patch skin
What relationship will blood volume have on blood pressure?
Answer:
Answer:I HOPE THAT ABOVE INFORMATION WILL HELP YOU A LOT.
Answer:I HOPE THAT ABOVE INFORMATION WILL HELP YOU A LOT.
While performing an experiment, it is important to:
a. change the control setup
b. test many different variables at the same time
c. reach a conclusion
d. record observations and measurements
Answer:
D
Explanation:
While performing an experiment, it is important to record observations and measurements, as in Option d. Option d is correct regarding the facts of the experiments, while the others are wrong.
What is an experiment?The experiment is carried out to observe the hypothesis, and in this process, a control set-up is taken whose value or result is already known, and the variables are taken and compared with the control. The controls set should never change in the experiment because the variables are tested with reference to them, and the measurements and observations of the experiment should be taken into consideration to prove the hypothesis. All the variables should not be tested at once because if this is done, it would introduce error into the experiment, and not all the experiments are done to get the conclusion.
Hence, while performing an experiment, it is important to record observations and measurements, as in Option d.
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In CaF2, the oxidation number of Ca is , and that of F is . In H2SO4, the oxidation number of H is , that of S is , and that of O is . In CaSO4, the oxidation number of Ca is , that of S is , and that of O is . In HF, the oxidation number of H is , and that of F is
Answer:
1. The oxidation number of Ca is 2, F is -1 in CaF₂
2. The oxidation number of H is 2, S is 6, O is -8 in H₂SO₄
3. The oxidation number of Ca is 2, S is 6, O is -8 in CaSO₄
4. The oxidation number of H is 1, F is -1 in HF
Explanation:
To get the oxidation number, we need to take the oxidation number of the whole compound 0. Then we need to know the oxidation number of the other elements and we need to take 'x' as the oxidation number of the unknown element.
Example:
In case of CaSO₄,
We can write an equation as-
CaSO₄ = 0
If we need to know the oxidation number of S
We can write the equation like this-
→2+ x+ (-2*4) = 0 (as we know the oxidation number of Ca is 2 as it has two electrons in its last shell which it gives to other elements to form bonds and the oxidation number of O is -2 as it takes 2 electrons to complete its outer shell)
→2+ x+ (-8) = 0
→2+ x- 8 = 0
→x- 6 = 0
→x = 6; which is the oxidation number of S
The following are the oxidation numbers:
In CaF2, the oxidation number of Ca is +2, and that of F is -1.
In H2SO4, the oxidation number of H is +1, that of S is +6, and that of O is -2.
In CaSO4, the oxidation number of Ca is +2, that of S is +6, and that of O is -2.
In HF, the oxidation number of H is +1, and that of F is -1.
What is oxidation number?Oxidation numbers are a way of representing the degree of oxidation (loss of electrons) or reduction (gain of electrons) of an element in a chemical compound. The oxidation number of an element is calculated based on the number of valence electrons (electrons in the outermost energy level of an atom) and the rules for assigning oxidation numbers.
In general, the oxidation number of an element is equal to the charge it would have if all the bonds in the compound were ionic (made up of positive and negative ions). This allows chemists to predict the behavior of elements in a compound and to balance chemical equations.
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What is conjunctivitis
Answer:
[tex] \underline{ \underline \orange{see \: below}}[/tex]
Explanation:
Conjunctivitis is an inflammation, infection of the conjunctiva. It is the most common ocular disease worldwide.It is characterized by a pink appearance because of subconjuctival blood vessels hemorrhage.
Simply, we can define it as :
Conjunctivitis ( pink eye ) is an inflammation or infection of the transparent membrane ( conjunctiva ) that lines your eyelid and covers the white part of your eyeball.
Pink eye is commonly caused by a bacterial or viral infection , an allergic reaction or in babies.
The most common pink eye symptoms include:
Redness in one or both eyesItchiness in one or both eyesA gritty feeling in one or both eyesHope I helped !
Best regards!
Climate change is a threat to polar bears and other species that thrive on sea ice. Melting sea ice and changing precipitation patterns impact the bears’ ability to hunt and survive. In the past few decades, the number of polar bears in the Arctic region has dropped considerably. How might humans help to save these species?
Answer:
c.
Explanation:
Breed Polar bears in captivity , and then release them in the colder areas.
The colder the area the less of a chance there would be for the ice to melt fast enough sweeping away the bears shelter.
Climate change is the long-term alteration in weather patterns. It impacts the polar bears of the arctic region that can be saved by breeding them in captivity and then releasing them into their natural habitat.
What is the impact of climate change?Climate change is the pattern of the disturbance in the weather and the temperature condition of the earth and its various places. It is a result of increased global warming caused by pollution.
Climate change affects the oceans and sea by raising their temperature leading to the melting of the ice caps and glaciers. This results in habitat destruction and decreases the population of arctic animals like polar bears.
To increase the population of polar bears, humans can breed them in an artificial environment and then can release them into their natural habitat like the colder places.
Therefore, the population can be increased by breeding.
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When an action potential from a motor neuron arrives at the neuromuscular junction (NMJ), a series of events occurs that leads to muscle contraction. What events will occur last?
Answer:
conformational change in troponin
Explanation:
The troponin complex plays an essential role in the thin filament regulation of striated muscle contraction.
brain is considered as the centre of all senses, why ?
Answer:
the brain transfers and receives all signals from different parts of the body and controls what we do. it stimulates all our moves.
if something we touch is hot the brain will receive signals from the sensory cells in the skin, it'll tell us to move away, we'll move our hand away as a reaction.
Explanation:
Algae in the genus Caulerpa typically grow to a length of over half a meter and have structures similar to stems,leaves,and roots.Reproduction occurs when adults produce sperm and eggs that fuse to form offspring.Each adult Caulerpa consists of just a single cell,however.Which of the following statements is true?
A) Caulerpa violate the pattern component of the cell theory that all organisms consist of cells.
B) Caulerpa violate the process component of the cell theory that all cells come from preexisting cells.
C) Caulerpa violate both the pattern and process components of the cell theory.
D) The existence of Caulerpa is consistent with the cell theory.
Answer:
D) The existence of Caulerpa is consistent with the cell theory.
Explanation:
This question describes species of algae in the genus, Caulerpa, which is a unicellular organism that possesses structures similar to leaves, stems and roots in plants. It also grows to a length of about 0.5metres. it reproduces sexually by fertilization of gametes (sperm and egg).
According to all these described characteristics of Caulerpa, it's existence is in conformity or accordance with the unified cell theory, which was proposed by three scientists namely: Matthias Scleiden, Theodor Schwann, and Rudolf Virchow in the 1830's. The three components of the cell theory states that:
1. Cell is the fundamental and basic unit of life existence.
2. All living organisms are composed of one (unicellular) or more cells (multicellular).
3. All cells come from already preexisting cells.
Hence, based on the components of the cell theory and the life pattern of Caulerpa i.e. Caulerpa is made up of one cell, it is made from the fusion of preexisting parental cells etc. It is consistent with the cell theory.
What process is similar in function to genetic engineering but different in the mechanism it uses? A. Replication in a bioreactor B. Cellular Respiration C. Breeding for specific traits D. Genetic Calculus
Option C. Breeding for specific traits is a similar process in function to genetic engineering but different in the mechanism it uses.
Genetic engineering refers to the process of using recombinant DNA methodologies to alter the genome of a particular organism and thus obtain the desired characteristics/traits in organisms derived from them. An example of genetic engineering is the use of recombinant DNA methodologies to develop Escherichia coli strains that generate human insulin.Moreover, selective breeding refers to the process aimed at developing organisms with desirable characteristics by choosing parents with these traits in order to cross them and produce offspring with these phenotypic traits.For example, wheat plants with better yields can be obtained by crossing between wheat varieties that exhibit desired phenotypic traits.In conclusion, Option C. Breeding for specific traits has a similar objective that genetic engineering but the mechanism to reach this objective is different.Learn more in:
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Why does Pakistan experience frequent earthquakes?
A It does not experience earthquakes.
B. It lies on a convergent collision plate boundary between India and Eurasia.
C. It is located near many volcanoes and the pressure from the magma buildups causes earthquakes.
D. It lies on a divergent plate boundary between Eurasia and the Middle East.
B is the answer for this question
Your patient has a rash, a fever, and a very high white blood cell count. Blood specimens are taken, put into sterile culture bottles, and sent down to the microbiology lab for incubation and analysis. Select the statement that best reflects why microbial analysis of blood is an important step in this patient diagnosis: SP Select one or more:
a. A lack of microbes in the blood means that the patient's health is critical
b. minimal microbial growth in the blood sample is normal and should be ignored
c. Blood culture analysis would not provide any useful information to the diagnostic team
d. Blood specimen are often obtain through poor aseptic technique by the healthcare worker
e. microbial growth in the blood sample may possibly indicate sepsis in the patient
Answer:
e. microbial growth in the blood sample may possibly indicate sepsis in the patient.
Farming, grazing of livestock, mining, and drilling combined account for: Over 1/2 of deforestation About 1/3 of deforestation 3/4 of deforestation All of deforestation
Answer:
Over 1/2 of deforestation
Explanation:
Farming, grazing of livestock, mining, and drilling combined account for Over 1/2 of deforestation or more than half of deforestation.
These are few of the major causes of deforestation which is continuously destroying forests and wildlife that leads to global warming.
Forests are destroyed for farming purposes, overgrazing by cattles, urbanization of forests in industries and towns, mining, and drilling should be controlled to save deterioration of the earth.
Hence, the correct answer is "Over 1/2 of deforestation ".
All of the following are protozoans except Mushrooms Amoebas Paramecium Euglena
Answer:
because they belong in the fungi kingdom
Explanation:
Answer:
Mushrooms
Explanation:
Mushrooms belong to the fungi kingdom
Genetic engineering involves various stages.
1 human DNA is inserted into bacterial plasmid DNA
2 recombinant plasmid inserted into bacteria
3 restriction enzyme cuts bacterial plasmid DNA
4 restriction enzyme cuts human DNA
What is the correct sequence for genetic engineering?
Answer:
4, 3, 1, 2
Explanation:
FIRST: cDNA is synthesized to be used as a gene of interest: processed (spliced) mRNA (no introns) is reverse transcribed to cDNA using reverse transcriptase, an enzyme from retroviruses
SECOND: Restriction enzyme used to cut GOI
THIRD: Same Restriction enzyme used to cut plasmid (sticky ends are created)
FOURTH: GOI connects/hybridizes with plasmid due to base-pairing
FIFTH: DNA ligase connects the recombinant DNA strands
what are top consumer
Answer:
it is a food chain.
I can't write more it's not allowed
explain why there is more carbon dioxide in expired than inspired air
Answer:
Exhaled air has more carbon dioxide than inhaled Air because during respiration the food breaks down with the help of oxygen to produce Carbon dioxide and water. ... Therefore Exhaled air contains more Carbon dioxide than inhaled Air.
"Wow! This rose bush is doing so much better on this side of the house than
on the other side. I wonder why that is?"
East or South side is best
Explanation:
Roses do best in full sun and morning sun is the best place. so always plant roses the along an east wall or south side of your home
What is the basic unit of structure and function of all living organisms?
Answer:
Cells is the basic units of structure and function of all living things.
Hope it helps you.Along the inferior surface of the liver are several structures that collectively resemble the letter H. The ______ and the round ligament of the liver form the vertical superior parts of the H; the inferior vena cava and the ligamentum ______ form the vertical inferior parts.
Along the inferior surface of the liver are several structures that collectively resemble the letter H. The gallbladder and the round ligament of the liver form the vertical superior parts of the H; the inferior vena cava and the ligamentum venosum form the vertical inferior parts.
The gallbladder is a pear-shaped organ localized on the right side of the body, directly under the liver. This organ functions to store a digestive fluid called bile until it's needed for digestion.The round ligament of the liver (also called ligamentum teres hepatis) is a remnant of the fetal umbilical vein. This ligament is part of the coronary ligament of the liver.The ligamentum venosum (also called the hepatogastric ligament) is a deep cleft on the posterior surface of the liver. It is a fetal remnant ligament attached to the left branch of the portal vein within the porta hepatis.Learn more in:
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Escherichia coli infections Multiple Choice can cause an inflammatory disease similar to Shigella dysentery. include urinary tract infections from normal flora strains. All of these choices are correct. are often transmitted by fecal contaminated water and food. involve enterotoxin in traveler's diarrhea.
Answer:
E. All of the choices are correct.
Explanation:
Escherichia coli infections
A. are often transmitted by fecal contaminated water and food.
B. include urinary tract infections from normal flora strains.
C. involve enterotoxin in traveler's diarrhea.
D. can cause an inflammatory disease similar to Shigella dysentery.
E. All of the choices are correct.
Which of these does not affect an individual’s metabolic rate?
A-their height
B-The genes they inherited
C-The muscle to fat ratio
D-The amount of exercise They do
The study of structure or how organisms are organized on the cellular, tissue, organ, system, or organism levels is called what
Answer:
Anatomy.
Because Anatomy is the study of internal body organs
In the autumn, many birds will collect seeds and then hide them in various caches throughout their habitat. The birds will guard their caches from other birds, and move the caches if they start to dry out. These caches provide a food source for the birds during the winter. What is an abiotic factor that contributed to the evolution of this set of behaviors? A. being preyed upon by larger birds B. competition with other birds for space C. limited food availability D. cold winter climate
Answer:cold winter climate
Explanation:During winter specially in the eastern and western part of the world....snows bury grounds and food that enables this organisms live....and cold can also affect them
Answer:
Answer: c. limited food availability
Explanation:
Both biotic and abiotic factors are responsible for shaping the evolutionary framework of the population. Resource availability can be one of the important abiotic factor in determining the evolutionary dynamics of the population or species. Limitations in resource can result in increase in competition. According to population exclusion principle when two species compete for the same limiting resource this results in co-evolution of both the species. But the extent of evolution may vary among the species. The one which undergoes more favorable evolution will be stronger competitor and drive more resources and will be fit for survival in adverse limiting conditions.
What are the uses of the whorls of the flower
Answer:
The outermost whorl of the flower has green, leafy structures known as sepals. The sepals, collectively called the calyx, help to protect the unopened bud. The second whorl is comprised of petals—usually, brightly colored—collectively called the corolla.
how do each of the following factors affect the productivity in this process of photosynthesis ? 1)Temperature 2) Water 3) carbondioxide
Answer:
without the right amount of temperature and water photosynthesis won't take place and without the presence of carbon dioxide...there is nothing like photosynthesis
Explanation:
1) Temperature- Above 28°C of temperature photosynthesis will not take place faster as necessary. At this temperature, the enzymes responsible for photosynthesis will not work efficient as needed . 2)Water and 3)Carbon Dioxide-Water and carbon dioxide are the reactants in Photosynthesis which means they are taken in to produce energy. Six molecules of water and six molecules of carbon dioxide are needed to break apart glucose and produce energy.
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Proton pumps embedded in the cell membrane use ATP to move hydrogen ions across the membrane. Which of the following best describes a function of the proton pump? A. It decreases the pH inside the cell to prevent toxicity. B. It generates a voltage across the membrane as a way to store energy. C. It helps maintain homeostasis by absorbing electrical charges. D. It increases the fluidity of the cell membrane as energy is used.
Answer for anyone who may still need it: B. It generates a voltage across the membrane as a way to store energy.
what is the utility of tissues in multi cellular organisms
Answer:
A tissue is classified as a cluster of cells that work together to perform a particular task and are structurally similar. In multicellular species, the use of tissues provides structural and mechanical strength and enables division of labour.
What is the potential disadvanatges of external digestion
Answer:
Environmental hazards such as predators reduce the change if surviving into adulthood, Large amounts of gametes go unfertilised and wasted, Not guaranteed that sperm will come in contact with eggs, Greater chance of desiccation of gametes/zygotes.
Explanation:
How do the leaves help trees survive in their respective biomes? A. The temperate leaves are broad and flat to maximize sunlight absorption, while the taiga leaves are long and thin to minimize sunlight absorption. B. The temperate leaves are thin to minimize absorption of sunlight, while the taiga leaves are specialized to store water during the dry season. C. The temperate leaves shed water during the wet season, while the taiga leaves can enter long periods of dormancy during colder weather. D. The temperate leaves grow in the spring and shed in the cold, while the taiga leaves are dark and wax-coated to prevent the tree from freezing.
Answer:
The correct answer is option D.
Explanation:
The temperate leaves grow in temperate forests found in America, Europe, and Asia. This biome comprise of trees have evergreen conifers with needle like leaves. Such leaves can endure wide change of temperature and light. Some vegetation of temperate biome are conifers such as Pine, Hemlock and other. The trees shed their leaves with the beginning of fall and new leaves are delivered in late-winter to protect from the cold.
On other hand, Taiga forest is the biggest biome on the planet. This biome contain conifers with long, slender waxy needles like leaves. These waxy leaves provide security against freezing temperature and from dying drying out. In contrast to temperate they don't sheds their leaves in winter and keep their needles throughout the entire year.
Thus, the correct answer is option D.
Answer:
D. The temperate leaves grow in the spring and shed in the cold, while the taiga leaves are dark and wax-coated to prevent the tree from freezing
Explanation:
Got it right on Edmentum
_____ are related to poor productivity of harvest due to poor care for soil.
Answer:
Soil Tillage, Climate Change and Soil Carbon Sequestration
Explanation: