Answer:
forest fires.
Explanation:
Carbon on Earth is found in both living and nonliving matter. In order for carbon to be continuously available, it must be recycled. The process through which carbon is made available in the atmosphere is through forest fires.
The burning of forest trees and plants is known as combustion.
Combustion can be defined as an exothermic chemical reaction between physical substances, usually in the presence of oxygen and hydrocarbons to produce heat, light and carbon.
This ultimately implies that, the burning of a forest (forest fires) makes carbon available in the atmosphere. It is usually released in the form of either carbon dioxide or carbon monoxide.
I’ll mark brainiest if your right need ASAP
Answer:
im on a school laptop and its blocked can you right it out plz
Explanation:
Answer:
A. Genes are segments of DNA that are located on the chromosome of each cell
Explanation:
Select the correct statement about current hypotheses for the cause of the Cambrian explosion.
A.Oxygen levels reached a critical threshold at the start of the Cambrian explosion, making the evolution of big, mobile animals possible.
B. With the evolution of algae, oxygen was produced by oxygenic photosynthesis for the first time in the history of life on Earth.
C. Key developmental toolkit genes arose early in the Cambrian, leading to the Cambrian explosion of animal phyla.
D. There are no plausible hypotheses accounting for the rapid adaptive radiation known as the Cambrian explosion.
Answer:
A. Oxygen levels reached a critical threshold at the start of the Cambrian explosion, making the evolution of big, mobile animals possible.
Explanation:
The Cambrian explosion was an event that happened approximately 541 million years ago and it lasted for about 13 – 25 million years.
The current hypothesis for the cause of the Cambrian explosion is that oxygen levels reached a critical threshold at the start of the Cambrian explosion, making the evolution of big, mobile animals possible.
Option A. is correct.
The statement 'oxygen levels reached a critical threshold at the start of the Cambrian explosion, making the evolution of big, mobile animals possible' is TRUE (Option A).
The Cambrian explosion refers to the extraordinary and sudden emergence of different life forms during the Cambrian period approximately 540 million years ago.During this period, the emergence of photosynthetic organisms contributed to the change in the composition of the atmosphere.The Cambrian explosion contributed to the appearance of many major phyla in different groups of animals.In conclusion, the statement 'oxygen levels reached a critical threshold at the start of the Cambrian explosion, making the evolution of big, mobile animals possible' is TRUE (Option A).
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How does blood connect to the respiratory system ?
Answer:
The circulatory and respiratory system cooperate to circulate blood and oxygen all through the body.
Explanation:
which of the following statements listed below is TRUE about the function of the filament?
a.it carries female sex cells
b.it holds the stigma in place
c.it is a thin tube which holds the anther up.
d.it produces pollen grains
pls answer i need the answer plssss
Answer:
Answer is C
Explanation:
The filament is used to hold up the anther with out the filament there is no cross-pollination.
Answer:
c is right answer
Sequence the forensic history events in chronological order.
British sees the publication of the first
forensic textbook.
Italian authorities legalize autopsies
for crime investigations.
The ancient Romans perform an autopsy
of Julius Caesar's body.
Answer:
1. Italian authorities legalize autopsies
for crime investigations.
2. The ancient Romans perform an autopsy of Julius Caesar's body.
3. British sees the publication of the first forensic textbook.
Explanation:
Chronology can be defined as an arrangement of data, items or documents in the order in which they occurred or happened (in time), from the earliest to the most recent or latest.
Simply stated, ordered events are organized in order of time and this process is known as chronology.
Generally, a chronology can be used as a filing process in various areas such as schools, hospitals, hotels, and business firms to help put data (informations) in order by time or date.
Critically looking at the facts presented above, it can be deduced that autopsy is the common factor.
Hence, the order of events in a chronological order is;
1. Italian authorities legalize autopsies
for crime investigations.
2. The ancient Romans perform an autopsy of Julius Caesar's body.
3. British sees the publication of the first forensic textbook.
Answer and I will give you brainiliest
Answer:
The orange on the top is the frontal lobe. The blue part is the parietal lobe. The yellow part is the temporal lobe. the orange lower part is the cerebellum.
Explanation:
Will give brainliest Lions are the predator that most often hunt both wildebeest And Buffalo, what do you predict is happening to the lion population between 1960 and 1975?
Answer:
Fewer than 500 lions remain in West Africa, the study estimated. The team and a panel of lion experts used the savannah data to refine estimates of lion populations, which had ranged between 20,000 and 40,000 across Africa. Their estimate: 32,000 lions remain, down from an estimated 100,000 in 1960.
In the lungs, there are tiny sacs called alveoli. Gas exchange will need
to occur here between which two gases?
When air is inhaled, oxygen diffuses from the alveoli into the blood to be used for respiration by the body’s cells. Carbon dioxide is a waste product made by the body’s cells during respiration.
Answer:
carbon dioxide and oxygen
Explanation:
50 points!
As a person exercises, this causes several body systems to work together. For 2 points each, answer the following questions: 1. Define organ system and what they are made up of to be able to do specific functions 2. Identify TWO organ systems (other than the nervous system) that would be involved in exercise. 3. Explain how the NERVOUS system would be involved in the exercise.
Answer:
The parasympathetic nervous system conserves energy as it slows down heart rate, increases intestinal and glandular activity, and relaxes the sphincter muscles of the gastrointestinal tract. It gets the nickname "rest and digest" for doing exactly so. Typically most active when sleeping, however is also the explanation for post-prandial fatigue, or being tired after eating (especially a large meal).
Explanation:
Define organ system and what they are made up of to be able to do specific functions An organ system is made of a few organs that perform multiple functions.
Identify TWO organ systems (other than the nervous system) that would be involved in exercise. parasympathetic nervous system
Explain how the NERVOUS system would be involved in the exercise.The peripheral system allows the brain and spinal cord to receive and send information to other areas of the body, which allows us to react to stimuli in our environment.The peripheral nervous system itself is divided into two parts: the somatic nervous system and the autonomic nervous system.Each of these components plays a critical role in how the peripheral nervous system operates.
Motor neurons: Also called efferent neurons, motor neurons carry information from the brain and spinal cord to muscle fibers throughout the body. These motor neurons allow us to take physical action in response to stimuli in the environment.
Sensory neurons: Also called afferent neurons, sensory neurons carry information from the nerves to the central nervous system. It is these sensory neurons that allow us to take in sensory information and send it to the brain and spinal cord.
Mark’s doctor found that he had severe plaque buildup inside his arteries. What procedure would Mark’s doctor recommend to treat his condition?
Answer:
It would be hard knowing which procedure Mark would need, but here are some possible options: (this was copied from the University of California San Francisco, UCSF).
Explanation:
Angioplasty
Angioplasty, also called percutaneous transluminal coronary angioplasty or PTCA, involves inserting a long flexible tube called a catheter into a blood vessel through a small incision in your skin. The catheter has a deflated balloon on its tip. Once the catheter reaches the blocked blood vessel, the balloon is inflated and compresses the plaque against the sides of the blood vessel. The balloon may be inflated and deflated several times. Often, the procedure is done in conjunction with a small metal tube called a stent that is left in the artery to serve as a scaffold to keep the artery open and prevent the plaque from springing back toward the center of the vessel.
Coronary Artery Bypass Graft
Coronary artery bypass graft (CABG) surgery is an open-heart operation in which an artery or a piece of vein taken from your leg is attached to the blood vessel to detour blood around the blockage. During part of the operation, your heart will be stopped and a heart-lung machine will be used to pump your blood and help you breathe. As with most major large incision operations, it takes about six weeks to recover. CABG is the most successful and most common major heart surgery in the Western world.
Coronary Stent
A coronary stent is a small, latticed, high-grade stainless steel tube that is used to hold the coronary artery open and minimize the chance of abrupt closure after angioplasty. It is placed in the coronary artery using the same procedure as the angioplasty. The stent is typically positioned at the narrowed area of the artery. When the catheter's balloon is inflated, the stent expands and is pressed against the vessel wall. The balloon is deflated and withdrawn, leaving the stent permanently in place. After a stent is placed, you will be prescribed an antiplatelet medication, Clopidogrel, also known as Plavix, for one month. This is used to minimize the risk of clot formation in the stent while tissue grows around the stent to incorporate it into the blood vessel wall. Within a month, the body no longer "sees" the stent, and the medication is no longer needed. You should continue to take aspirin, if it has been prescribed, along with the Clopidogrel.
Rotational Atherectomy
Rotational atherectomy widens narrowed arteries using a high-speed rotational device to "sand" away plaque. This technique is used in particular situations, such as with plaque with large amounts of calcium or to widen blockages within a stent.
UCSF Health medical specialists have reviewed this information. It is for educational purposes only and is not intended to replace the advice of your doctor or other health care provider. We encourage you to discuss any questions or concerns you may have with your provider.
I'm not sure if this helps any, but I'm glad to try.
why would plants and animals store carbohydrates
Answer:
Why would plants store their energy as carbohydrates and not as fats, if fats are a more efficient energy store? Plants synthesize glucose from carbon dioxide, animals ingest carbohydrates in their diet and break them down into monosaccherides.
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Begin by creating a list of questions to guide your research and help you form a convincing argument. Your presentation should answer some of these questions:
What is the definition of a pandemic?
How does a pandemic differ from an endemic or epidemic?
What is the life cycle of the HIV virus once it enters the body? How does the genetic code of the virus change?
How does HIV affect the body?
How do people become infected with HIV?
How does AIDS develop from an HIV infection?
What are the current infection rates of HIV across the globe?
Where is HIV/AIDS most prevalent?
What treatments are currently available for HIV/AIDS?
Do some regions of the world have better access to treatments than others?
What is the average life expectancy for someone with HIV? Does life expectancy differ around the globe?
Now write four additional questions about HIV/AIDS that could help strengthen your argument in the presentation.
Answer:
1)A pendemic is a disease that spreads over the world and country is known as pendemic
2)An epidemic is a disease that affects a large number of people within a community, population, or region. A pandemic is an epidemic that's spread over multiple countries or continents. Endemic is something that belongs to a particular people or country.
3)When HIV infects a cell, it first attaches to and fuses with the host cell. Then the viral RNA is converted into DNA and the virus uses the host cell's machinery to replicate itself during a process called reverse transcription. The new copies of HIV then leave the host cell and move on to infect other cells.
Answer:
-How many estimated people, ages 16-40 die from AIDS every year?
-In 2019, 2020, and 2021, how many people were diagnosed with AIDS?
-What are the long term affects AIDS can have on someone?
-What are the yearly death rates caused by AIDS from this decade?
Explanation:
Oxyhemoglobin releases its oxygen to the body tissues when there is a[n]:
A)constant amount of nitrogen in the plasma.
B) increase in oxygen in the plasma.
C) decrease in carbon dioxide in the plasma.
D) increase in hydrogen ions.
The proteome solution was fractionated by ion-exchange chromatography. What type of ion-exchange resin will bind RNAP at pH 7.4
Answer:
Explanation:
There is a lot of missing information in the question but I will help you with the explanation that can help you understand the question and at the end provide a solution to it correctly.
Ion exchange chromatography is necessary and is used for the separation of charged molecules. In this method or process, ionic solutes display reversible electrostatic interactions accompanied by the charged stationary phase, this usually comprises an insoluble matrix together with a covalently attached ion (ion exchanger). The solutes which are introduced in the column, perhaps(- ve) charged, (+ ve) charged, or neutral under a given condition.
So, the higher the charge density, the stronger the interaction.
pI of RNAP= 5.34
The pH of the experimental condition = 7.4
So, if pH is > pI of a solute, the solute gives H+ ion and converts to be (- ve) charged.
Thus, in this scenario (- ve) charged RNAP attaches to the (+ ve) charged ion exchanger. So, an anion exchanger (which is a basic ion exchanger) is imbibed in the separation of the anion in ion exchanger chromatography.
sample of such anion exchanger is DEAE - cellulose (Diethylaminomethyl).
Help please:( Which of the following shows methods of harvesting corn in order from the
highest rate of resource consumption to the lowest?
Answer:
Option A is the answer.
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Why are watersheds important for the maintenance of water quality? Choose all that apply.
Select 2 correct answer(s)
Question 3 options:
their soil and plants can filter and clean water
they can transfer pollutants
they cause precipitation and acid rain
they cause floods
Answer:
This may be a little late but the answers are A. their soil and plants can filter and clean water and B. they can transfer pollutants and
Explanation: just trust me it was on my quiz these are the correct answers
Answer:
A & B is correct i took the quiz
Explanation:
1. Define Carrying Capacity:
describe the 10 disorders that result from the description of homeostasis
Answer:
Diseases that result from a homeostatic imbalance include heart failure and diabetes, but many more examples exist. Diabetes occurs when the control mechanism for insulin becomes imbalanced, either because there is a deficiency of insulin or because cells have become resistant to insulin.
diabetesBlood oxygen content homeostasis. Homeostatic Imbalances of the BloodPlasma ionized calcium homeostasis. Arterial blood pressure homeostasis. Core body temperature homeostasis. The volume of body water homeostasis. Extracellular sodium concentration homeostasis.When a region of DNA that contains the genetic information for a protein is isolated from a bacterial cell and inserted into a eukaryotic cell in a proper position between a promoter and a terminator, the resulting cell usually produces the correct protein. But when the experiment is done in the reverse direction (inserting the eukaryotic DNA into the bacterial cell), the correct protein is not produce. Why is this the case?
Answer:
Explanation:
Eukaroytes are orgamsims with membrane bound organelles
In eukaryote, the DNA sequence contains introns (which are the non-coding part of the DNA that should be removed through a process called splicing) which cannot be spliced out properly by the bacterial cell and therefore resulting in protein other than the initial template(Incorrect protein) reading from the information in the bacterial RNA(ribonucleic acid)transcript. For Eukaryotes with correct protein the introns are spliced properly and corresponding amino acids or protein are formed in ordered succession leading to a correct protein.
When dendrochronologists use tree rings to reconstruct climates, what does a thinner than normal ring tell them about the year that ring formed?
Question 25 options:
A. that it was very humid
B. that it was very windy
C. that there was high precipitation
D. that there was low precipitation
what is the most sensitive part of the malebody
brainliest get 50 points
The input to glycolysis is __________, and under aerobic conditions, the outputs of the Krebs cycle include _______________.
The input to glycolysis is glucose , and under aerobic conditions, the outputs of the Krebs cycle include ATP/GTP.
sorry if im wrong, you can report it if you think its wrong
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Answer:
Picture is upside down and is very blurry sorry!
What is the main job of the cell membrane ?
Which term describes this group of stars?
Moon
Solar System
Galaxy
Universe
Answer:
I think Galaxy hope this help in anyway!
Explanation:
Can you please answer this fast? Grade: 9 Subject: Science
Answer:
69
Explanation:
i lock ur rod in my butt
When would it be possible for an allele to show up in your genotype but not in your phenotype?
A.
when it is dominant
B.
when it is hybrid
C.
when it is recessive
D.
when it is mutated
Answer:
C
Explanation:
A genotype is genetic take for example if you have a dad with black hair and a mom with blonde hair. You would probably be Ab where A is black allel dominant while b is recessive.
Now the phenotype is physical such as will you end up with.
So if b is reccesive to A you will end up with black hair.
using breast cancer as an example calculate the percentage of survival for this cancer type
A student drew the following flowchart in her notes.
Crushing - Sizing → Concentrating - Dewatering
What does the process show?
A. Crystallizing magma
B. Blending coal
C. Processing minerals
D. Refining crude oil
Answer:
processing minerals
Explanation:
The flowchart which is shown here include: Crushing→ Sizing→ Concentrating→ Dewatering. This process is showing processing minerals. Thus, the correct option will be C.
What is Mineral processing?Mineral processing is the process which includes separation of the commercially valuable minerals from their ores in the Earth's crust. Depending on the processes which are used in each instance, it is often also known as the process of ore dressing or ore milling.
The profitability of an ore or a mine is based on how much concentrate of the desirable mineral can be extracted or mined from the ore. As a result of this, mineral processing can be designed to yield the maximum amount of mineral concentrate which is possible before products hit the market.
Therefore, the correct option will be C.
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