Answer:
As you might think, bacterial infections are caused by bacteria, and viral infections are caused by viruses. Perhaps the most important distinction between bacteria and viruses is that antibiotic drugs usually kill bacteria, but they aren't effective against viruses.
Explanation:
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1.what did magnesium and oxygen atoms had to do to bond ?
2. why did the oxygen atom needed two sodium atoms to bond ?
3. why did the magnesium atom needed two fluorine atoms to bond ?
please put the numbers in order so i know which answer is for the questions thanks <3
Answer:
1. Magnesium and oxygen atoms bond to form an ionic compound; this is evident because one forms a cation and the other an anion. When an ionic compound is formed, one atom "steals" an electron (or electrons) from another. In this case, an oxygen atom (which is pretty electronegative by the way) "steals" 2 electrons from a magnesium atom. The resulting oxygen anion and magnesium cation attract one another to form a bond (more specifically, an ionic one).
2. The oxygen atom needed two sodium atoms to bond because it needs two additional electrons to achieve a stable octet of electrons. 1 sodium atom provides 1 additional electron after it is "stolen" by oxygen, so 2 sodium atoms are needed in total to form the bond.
3. The magnesium atom needed two fluorine atoms to bond because it needs to lose two electrons to achieve a stable configuration/octet of electrons. 1 fluorine atom "steals" one electron, so 2 are needed in total.
Happy Holidays!
How much energy is converted into chemical energy or heat when it transfers between trophic
levels?
A
90%
B. 50 %
C. 25%
D
10%
Answer:
I think the answer is D
Explanation:
Where does the second phase Cellular Respiration occur (in the animal cell)?
Cells start to divide when they receive a signal. They continue to divide until they get another signal to stop. A cell with damaged DNA may not respond to the stop signal. The cell can become cancerous and divide uncontrollably. The cancerous cell and all its daughter cells can form a tumor. During which step of the cell cycle does a cell get a signal to begin cell division?
Answer:
Prophase.
Explanation:
Prophase is the stage of cell cycle which receive the signal to start cell division. Due to this signal, the nucleus dissolves inside the cell and the chromosomes begin movement to the middle line of the cell where these chromosomes condenses and then division of the cell occurs in later steps of mitosis cell division. So we can conclude that prophase step started when it got signal.
Reina is making museum exhibits about two different rock types. How could energy have played a role in the different rock types forming? *
a. Energy causes different types of rock to change in different ways. Energy changes igneous rock into liquid rock and changes sedimentary rock into small pieces of rock.
b. Energy caused one rock type to form, but not the other. Rock that forms because of energy is a different type of rock than rock that forms without energy.
c. Energy from different sources leads to different types of rock. Energy inside Earth melts rock into liquid rock, but energy from the sun causes rock to weather into small pieces.
d. Energy changes rock on different continents in different ways. Each continent on Earth has different rock that might form liquid rock or small rock pieces when exposed to energy.
Answer:
c. Energy from different sources leads to different types of rock. Energy inside Earth melts rock into liquid rock, but energy from the sun causes rock to weather into small pieces.
Explanation:
Energy is the ability to do work. The availability of energy in a system leads to diverse changes.
A rock is an aggregate of minerals and they are formed in diverse ways.
It is the internal heat energy of the earth that causes rocks to melt into liquid rock. The liquid rock is called magma and on getting to the earth surface, it is a lava. Also, the surface processes driven by the external heat engine causes the weathering of rocks into smaller bits and fragments. Both the internal and external heat engine are energy sources that causes rocks to change from one form to another.explain digestion Process
Answer:
Digestion is the process of converting complex food any individual eats, into the smaller components and nutrition that is absorbed and assimilated into the body to produce energy and nutrition for the cell and body. The digestion process takes place in the digestive system that includes the gastrointestinal tract and organs like the liver and pancreas.
It includes ingestion of food through the mouth or buccal cavity, propulsion of food, physical digestion by making it small pulp with help of peristalsis, chemical digestion by the enzymes and acid, absorption through the intestine into the blood, and defecation of waste.
the life of the cell is called the ____ _______
Answer:
Unit Of Life
Explanation:
Which of the following would lead to a lower rate of photosynthesis?
A
decrease in CO2
B
decrease in O2
C
increase in CO2
D
increase in O2
Answer:
A. Decrease in CO2
Explanation:
This is due to the fact that in photosynthesis plants use carbon dioxide, water and sunlight to make sugar and oxygen. So Oxygen would have no impact on the rate photosynthesis occurs. And a increase in CO2 would increase its rate. Only when there is a lack of CO2 will the plant rate be impacted
what is the difference between the process of photosynthesis in dark and in sunlight
Answer: The main difference between light and dark reaction is that light reaction is the first stage of photosynthesis, which traps light energy in order to produce ATP and NADPH whereas dark reaction is the second stage of photosynthesis, which produces glucose by using the energy form ATP and NADPH produced from the light.
The difference between the process of photosynthesis in dark and in sunlight is that the light reaction utilizes direct use of sunlight, it runs in the thylakoid region, and the final products are ATP and NADPH. While the dark reaction utilizes an indirect source of sunlight, it runs in the stroma region, and the final product is carbohydrates (glucose).
What is Photosynthesis?Photosynthesis may be defined as the process through which green plants and some algae synthesize their own food (glucose) with the help of carbon dioxide and water in the presence of sunlight.
Therefore, it is well described above.
To learn more about Photosynthesis, refer to the link:
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what is sex explain the procedure
Answer:
It’s where you get a girl and boy together then they have sex
Explanation:
If there is plenty of sunshine and rain for producers to grow and increase in numbers, which of the following will result?
I. Increase in 1st Level Consumers
II. Increase in 2nd Level Consumers
III. Increase in Biodiversity
WORLD POPULATION GROWTH
20,000
people
of
Millions
10,000
World
5,000
2,000
Asia
Africa
1,000
Europe
500
United States,
Mexico,
Canada, & Greenland
100 Central America,
50 Caribbean Islands, &
South America
20
Oceania (Australia &
nearby islands in the Pacific)
200
10
2010
Year
1950
1960
1970
1980
1990
2000
2020
2030
2040
2050
Based on the information in the graph, what is the best conclusion to draw
about Africa?
The best conclusion regarding Africa population can be observed in the graph.
What is population?Population refers to the number of people living in a geographical area. The question is incomplete hence the graph was not shown. However I can still try to help you.
The conclusion to be drawn is based on the graph. We must look at the graph and determine the trend, by so doing we can predict and make a good conclusion regarding Africa.
Learn more about population: https://brainly.com/question/16894337
Anyone knows this one?
Help please!!!!!
Answer:
Mitosis results in two diploid daughter cells that have the same genetic makeup.
Meiosis results in four haploid cells that are all genetically different from each other.
Need help please ASAP
Answer:
i thing c is yeur answer plasama mwmba
what is blood circulation?
Answer:
blood circulation is where blood circulate.
Explanation:
In this procees the heart purifies the blood, then oxygen is dissloved in blood
it takes oxygen to all over our body.
Which of the following forms of plant reproduction is likely to produce a new plant that is different from the parent plant?
Answer:
Sexual Reproduction
Explanation:
Asexual reproduction is when the parent reproduces by its self and the offspring that comes from it has the same genes as the parent and sexual reproduction is when the off spring has different genes because there are more than 2 parents so if the plant is different and my child looks different from me and i sexually reproduced with someone that means the plant has been sexually reproduced.(can i get brainliest)
All cells can synthesis ATP by way of glycolysis. Many cells have to metabolize pyruvate without oxygen by doing...?
Answer:
Anaerobic respiration
Explanation:
As rightly stated in this question, cells of all living organism synthesize ATP via the process of cellular respiration. Cellular respiration, however, occurs in stages starting with GLYCOLYSIS, which breaks down glucose to form PYRUVATE.
The metabolism of pyruvate in subsequent steps depends on whether the respiration process is occuring with or without oxygen. Without oxygen, pyruvate is metabolized in a process called ANAEROBIC RESPIRATION. Anaerobic respiration employs other molecules asides OXYGEN for last electron acceptor.
what is this?? pls help
Answer:
I think Density
Explanation:
Single-celled pond organisms have contractile vacuoles that maintain water balance within each cell. This is a an example of what scientific principle?
Answer:
The correct answer is homeostasis.
Explanation:
A self-regulating procedure taking place within an organism, which permits them to sustain a stable internal condition level is termed as homeostasis. In case, if an organism fails to sustain homeostatic balance, the eventual result would be death. Water balance, temperature, salt concentration, and pH are some of the several internal conditions, which are required to maintain comparatively stability.
Some of the single-celled pond organisms like paramecium comprise contractile vacuoles, which remove additional water out of the cell. As water balance is a part of sustaining homeostatic balance for an organism, thus one can study homeostasis by witnessing the modifications within the contractile vacuole when the species is placed in distinct solutions.
According to the map above, which language family is most commonly used in the country of China?
A.
Indo-European
B.
Afro-Asiatic
C.
Sino-Tibetan
D.
Altaic
Please select the best answer from the choices provided
A
B
C
D
Answer:
the correct answer is C
Answer:
C) Sino-Tibetan
Explanation:
got it right edg 2017
what are the events that occur during fertilization and birth of the fetus?
Explanation:
Stages of development: During the fetal stage, the brain develops and the body adds size and weight, until the fetus reaches full-term development. Throughout the fetal stage the brain continues to grow and develop, nearly doubling in size from weeks
Cytokinesis occurs after which phase?
What four structures are required of all cells?
Explain Lamarck's ideas about how organisms changed over time.
Answer:
Lamarckism, a theory of evolution based on the principle that physical changes in organisms during their lifetime—such as greater development of an organ or a part through increased use—could be transmitted to their offspring.Body structures can change according to the actions of the organism.have an innate tendency toward complexity and perfection. The actions of organisms as they use or fail to use body structures.
Lamarck claimed that organisms changed how they behaved in response to environmental change. Their altered behavior caused their organs to undergo modification, which their progeny inherited.
What are the main points of Lamarck's theory of evolution?Lamarck asserts that when the environment changes, animals develop new demands (besoins). This results in novel behaviors that make use of already-existing organs.
Darwin proposed hypotheses like inheritance, different survival, species variety, and extinction, whereas Lamarck proposed theories like the inheritance of acquired features, use and disuse, growth in complexity.
According to Lamarck's theory of evolution, an organism's traits that evolve over the course of its existence in reaction to its environment are inherited by or passed on to its children.
Learn more about Lamarck's theory:
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A gene is a segment of DNA that controls the production of____?
Answer:
protein
Explanation:
Answer: Proteins
Explanation: Most genes contain the information needed to make functional molecules called proteins.
Tim and Stephanie (from #2) are pregnant again! This time with a baby girl. They are nervous that she too may get hemophilia. Based on what you know about Tim and Stephanie, what is the probability that they do have a daughter with the disease? Show a Punnett square to support your answer.
Answer:
The probability that they will have a daughter with the disease is zero, 0.
Note: Further information about the couple is given in the previous question shown below:
Tim and Stephanie are devastated when they find out their newborn son has hemophilia - a sex-linked recessive disease. Tim is shocked because he doesn't have hemophilia, and figures if his son has it he would have gotten it from him. Is Tim correct in his thinking? Explain. Also explain what their genotypes must be in order for neither of them to have the disease but have a son who does.
Explanation:
Hemophilia is a sex-linked recessive disease which results in the inability of the blood to clot normally. The abnormal gene for the inheritance of this disease is present in the X-chromosome. Males are not carriers of this disease as any male who have the abnormal X-chromosome will always have the disease but women can be carriers of the disease if the abnormal gene is only on one XX-chromosome.
From the information provided above, it can be determined that the genotype of Tim and his wife is XY and XhX, such that the wife is a carrier (Xh is the abnormal gene for hemophilia while X is the normal gene) and Tim is a normal male.
In the event that Tim and Stephanie now have a baby girl, the likely genotype of the baby girl can be obtained using the Punnett square shown in the attachment below.
The probability that they will have a daughter with the disease is zero, 0.
A day on saturn takes about 10 earths hours. Which fact would best explain this short day?
Answer:
Saturn rotates faster than Earth!
Explanation:
A day is one rotation of a planet, so a planet that rotates faster has "shorter" days.
Hope this helps!
The rotation and revolution of the planets around the Sun determine the length of day and night on the planets. The Earth takes 24 hours to rotate, Mars takes 24.6 hours, while Saturn takes 10 hours.
The fact that described the short day of Saturn is that Saturn rotates faster than the Earth.
It can be explained as:
Earth is the only habitable planet in the solar system, which rotates on its axis in approximately 24 hours. Earth takes 365 days to revolve around the Sun. Mass and density of the planet determine the rotation of the planets. Saturn is a gaseous planet, which is also an outer planet. The day length on Saturn is 10 hours long, which is shorter than the Earth hours.
Thus, Saturn rotates faster than Earth and has a shorter day length.
To know more about Saturn rotation, refer to the following link:
https://brainly.com/question/11698873
FINAL QUESTION!!! #20
J. The offspring inherits traits from the parents
what do you mean by blood circulation
The circulation of blood refers to its continual flow from the heart, through branching arteries, to reach and traverse the microscopic vessels in all parts of the body, reconverging in the veins and returning to the heart, to flow thence through the lungs and back to the heart to start the circuit.
How is energy released from a molecule of ATP?
Answer:
When ATP is broken down to ADP
Explanation:
Energy is released from a molecule of ATP when the substance is broken down to ADP
ATP is the energy currency of a cell. It is called Adenosine Triphosphate
When a phosphate is removed, it become ADP - Adenosine Disphosphate.
In like manner, the breaking down releases inherent chemical energy and converts it to other forms of energy.
This is how the body system derives sufficient amount of energy for every of its activities.
When an organism undergoes cellular respiration, this is the process that is in play to release energy needed for the body to function