Answer:
From 280 ppm to 393 ppm.
Explanation:
In 1750, the amount of carbondioxide in the atmosphere was 280 ppm which increases by 393 ppm in 2012. This is because of the pollution occurs due to industrialization and number of vehicles increased in the world. More carbondioxide gas is released due to the smoke produced from burning of fossil fuels in industries and vehicles. So we can say that pollution is the main reason for increasing carbondioxide concentration in the atmosphere.
Explain the role of different parts of renal tubules of nephron in urine formation
Answer:The nephrons of the kidneys process blood and create urine through a process of filtration, reabsorption, and secretion. Urine is about 95% water and 5% waste products. Nitrogenous wastes excreted in urine include urea, creatinine, ammonia, and uric acid.
Explanation:
PLEASE HELP!
1. How does a clock and its internal and intricate mechanical parts make up a system(Explain)
2. Is it a living or nonliving system? (Explain)
3. How may it support a living system? (Explain)
4. Therefore what is an good example of a definition of a system?
Answer:
1. A clock with internal mechanical parts comprises a system because it is a combination of various parts that a heterogeneous in nature and function working together to achieve one end - indicating the time accurately.
Some mechanical clocks comprise of at least 10 parts namely:
Gear train: This component alone is a sub-system that comprises of at least 8 parts. These parts are broadly classified into wheels, pinions, and barrels.Main SpringPalletEscapement Escapement WheelBarrell Barrell WheelBalance Spring etc2. A clock is a non-living system.
Living systems have certain characteristics. Some of them are:
Stimuli: Response to the environmentGrowth and development: The are able to increase in size and dimensionsHomeostasis: this is the capability of self-regulation regardless of external conditions such as temperature and pressure. etc3. A cannot support a living system. It can however help a human being (which is essentially a combination of various systems) to tell the time.
4. a system is a combination of heterogeneous parts that work in unison to form a whole complex entity that can perform one or more functions.
Cheers
The Convention on Biological Diversity has goals that ________.
a. that ensure the distribution of biodiversity's benefits to wealthy countries who can pay for them
b. that require biodiversity be used in a sustainable manner
c. designed to reduce biodiversity
d. that include a set of international laws
e. spelling out future management plans for all biomes
Answer:
b. that require biodiversity be used in a sustainable manner
Explanation:
The Convention on Biological Diversity is a multilateral treaty that focuses on the use of biodiversity in a sustainable manner. The Convention on Biological Diversity is ratified by 196 nations.
There are majorly three goals of The Convention that include conservation of biodiversity; sustainable use of biodiversity; and equal sharing of genetic resources benefits.
Hence, the correct answer is "b. that require biodiversity be used in a sustainable manner".
Matter and energy can never bee created or destroyed. Explain how photosynthesis and cellular respiration demonstrate this law of nature.
They're linked. Cellular respiration uses oxygen and glucose from photosynthesis. Photosynthesis uses carbon dioxide, water, and energy from cellular respiration. Energy is transferred to other processes, not created or lost.
What is law of conservation of matter and energy?According to the law of conservation of mass or principle of mass conservation, any system that is closed to all exchanges of matter and energy must have a constant mass over time since the system's mass cannot vary and neither add nor subtract quantity.
Photosynthesis and cellular respiration are connected. Oxygen and glucose are obtained through photosynthesis and used in the process of cellular respiration. Carbon dioxide, water, and the energy released during cellular respiration are the three primary components of photosynthesis. Energy is not created nor destroyed; rather, it is transferred to other processes.
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We could tell by the rotten smell, that something putrid was in our trash can
Explain the word putrid
A ample
B alive
C Rotten
D appealing
Answer
The answer is c
Explanation:
it helps to promoting growth of roots and absorption of nutrients.
Answer:oil is a major source of nutrients needed by plants for growth. The three main nutrients are nitrogen (N), phosphorus (P) and potassium (K). Together they make up the trio known as NPK. Other important nutrients are calcium, magnesium and sulfur.
Draw an arrow between two points on earth that used to be connected
What is the function of NADPH and ATP
A. they are light-reflecting pigments
B. They transfer energy from light to the Calvin cycle
C. They absorb light
D. They power the light-dependent reactions
Which two factors are responsible for seasons on Earth?
A. Greenhouse gases and ozone in the atmosphere
B. Earth's tilted axis and its rotation around it
C. Trade winds and sea breezes
D. Earth's tilted axis and its revolution around the sun
Answer:
D
Explanation:
The short explanation is how the earth is tilted towards the sun, and it's revolution will cause certain parts to be closer or farther relatively to the sun. Hope this helps
The change in season is brought on by the earth's tilted axis and its revolution around the sun. Therefore, option (D) is correct.
The seasons are caused by Earth's tilted axis. Different regions of the Earth are exposed to the Sun's strongest rays at various times of the year. Therefore, the Northern Hemisphere experiences summer when the North Pole tilts toward the Sun. Additionally, winter in the Northern Hemisphere occurs when the South Pole tilts toward the Sun.
The Northern Hemisphere experiences summer in June because the Sun shines more intensely there than at any other time of the year. The Northern Hemisphere experiences winter in December because it is the month when the South Pole is oriented toward the Sun.
Therefore, option (D) tilted axis and revolution are reasons for the seasons.
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What do bacteria need to live and reproduce?
A. Food
B. Water
C. Nutrients
D. All of the above
Answer:
D is obviously the right answer.
Answer:
D
Explanation:
Which best describes the relationship between genetic variation and adaptation?
Answer:
Genetics are something that everyone (or only you) have. And adaptation is getting something from someone. Or Adapting to that.
Explanation:
Which of these is describing a Eutrophic Lake?
Mucky Water
Cold Water
Low Biodiversity
Rocky Bottomed
Plz answer I need help thank you
Answer:
Mucky water and rocky bottom
Answer:
mucy water ..........
How is the moon involved in the
hydrologic cycle?
B. it helps water evaporate
A. it provides light
C. it cools the Earth
D. it causes tides
Answer:
Explanation:
it cools the Earth
Really Need This >:3
A
B
C
Answer:
I'm pretty sure it's A
Explanation:
To compress means to push together. I hope this helps
PLEASE HELP URGENT!!! I WILL GIVE BRAINLIEST
Answer:
Explanation:
2. amoxicillin works against a wider variety of bacteria
3. narrow spectrum antibiotics work on a few types of bacteria and broad spectrum antibiotics target many types of bacteria
4. the overuse of antibiotics can lead to bacteria becoming resistant to treatment, which can lead to needing stronger antibiotics
What would be the expected result if a competitive, nonhydrolyzable analog of ATP were applied to the cytoplasmic side of a plasma membrane that contained a large concentration of the Na+/K+ pump? What would be the expected result if a competitive, nonhydrolyzable analog of ATP were applied to the cytoplasmic side of a plasma membrane that contained a large concentration of the Na+/K+ pump? The cell would accumulate Na+, but there would be no effect on K+. The cell would accumulate K+, but there would be no effect on Na+. The cell interior would experience higher than normal Na+ concentrations and lower than normal K+ concentrations. Both Na+ and K+ would accumulate outside of the cell.
Answer:
The cell interior would experience higher than normal Na+ concentrations and lower than normal K+ concentrations.
Explanation:
The Na/⁺K⁺ pump is an ATPase pump which is responsible for maintaining low Na⁺ and high K⁺ concentrations within the cytoplasm while maintaining high Na⁺ and low K⁺ concentrations in the extracellular fluid.
Since these two ions are moved against their concentration gradient, ATP hydrolysis is required to provide the energy for this process. This is done by moving in two K⁺ ions inside while moving three Na⁺ ions outside the cell for every molecule of ATP hydrolysed to ADP and Pi.
If a competitive non-hydrolyzable analog of ATP is applied on the cytoplasmic side of a plasma membrane that contained a large concentration of the Na/⁺K⁺ pump, it will act by inhibiting the action of the Na/⁺K⁺ pump. This will result in an accumulation of Na⁺ ions inside the cell and lower than normal K⁺ ions concentration.
Cells that become the _________ undergo a ____________ to __________ transition first. Fill in the blanks.
what is the last thing that happens when a cell divides to produce two new identical cells
Answer:
The last phase of cell division is cytokinesis. In this phase the cytoplasm of parent cell divides in to two cells called as daughter cells. It occurs during late stages of nuclear division.
The visible change of cytokinesis in an animal cell can be observed as formation of Furrow or Pucker on the cell surface.
A strategy for fighting bacterial infections uses viruses. Viruses that infect bacteria are called bacteriophages. Phage comes from the Greek word for “eater.” Explain why it is not accurate to call a virus that kills bacteria a “bacteria eater." What happens when a virus attacks a cell?
help!!
Answer:
Viruses are not living organisms, and for that reason a bacteriophage virus does not feed on bacteria, but uses them to replicate, producing lysis of the bacterial cell in the process.
Explanation:
Viruses are structures formed by genetic material —DNA or RNA—covered by a protein envelope called the viral capsid. These structures do not perform the vital functions of a cell, so they are not considered living organisms.
A bacteriophage virus is characterized by using prokaryotic cells to replicate, destroying them in the process.
Viruses need a living cell to be able to replicate, so they introduce their viral genome into them to replace the genetic material of their nucleus and be able to multiply. They can do this:
Introducing the genetic material from outside the cell. Entering directly into the cell to be able to replicate.Bacteriophage viruses do not eat the bacteria, they simply use it to reproduce, and then happens the lysis of the bacterial cell.
Answer:
Viruses are not living organisms, and for that reason a bacteriophage virus does not feed on bacteria, but uses them to replicate, producing lysis of the bacterial cell in the process.
Explanation:
You're a forensic scientist who discovers a frozen body with a broken leg. There's highly visible bruising around the fracture site. What could you safely estimate about the length of the time between the leg breaking and the time of death?
The victim dies within a few days of breaking their leg.
the victim died within a week of breaking their leg.
The victim died about two weeks after breaking their leg.
The victim died at least three weeks after he broke their leg?
I just took the test, the correct answer is “The victim dies within a few days of breaking their leg.”
From the forensic investigation, it can be estimated that the victim with a broken leg has been died within a week of breaking their leg. Thus, the correct option is A.
What is Forensic Science?Forensic science is also known as criminalistics. It is the application of science to study the criminal and investigation purpose. In civil laws, mainly, it is used on the criminal side. During criminal investigation, as governed by the legal standards of admissible evidence and the criminal procedure.
Forensic scientists are the experts who do the investigation of a crime scene and find what and how the crime has been taken place and who is the criminal.
In the given question, a frozen body has been discovered with a broken leg with highly visible bruises. Bruises on the body indicates injury which could be the result of defending self from the criminal. Thus, it can be estimated that the victim died within a week of breaking their leg.
Therefore, the correct option is A.
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NEED HELP ASAP! 100 POINTS!!
A lab experiment is created to see how the amount of solute affects the temperature needed to dissolve the solute completely. 2, 4, 6, and 8 grams of a salt are place in a small test tube with 15mL of water. The test tubes are then heated until the salt completely dissolves. Unfortunately, the test tube with 8 grams of salt never completely dissolves at any temperature. Suggest two changes to the procedure that might solve this problem.
Answer:
Rise the heat and lower the amount of salt
Explanation:
Changes in species can be seen in fossils trapped
in sedimentary rock.
What is the maximum magnification of most classroom compound light microscopes?
O 100x
O 500x
O 1,000x
O 5,000x
Answer:
C. 1,000x
Explanation:
Answer: 1000x c
Explanation:
The football team has a total of 25 jerseys . There are 5 mediums-sized jerseys . What percent of the Jerseys are médium-sized Jersey?
Answer:
20% or 0.2
Explanation:
if u divide 5 by 25, u get 0.2, which in decimal form is 20%
Which compound is a hydrocarbon?
A. C2H6
B.CO2
C. C6H12O6
D. H2O
we the people of the United states in order to form a more perfect union..."what was the purpose of the introduction that begins with these words?
Answer:
The preamble sets the stage for the Constitution, It clearly communicates the intentions of the framers and the purpose of the document. The preamble is an introduction to the highest law of the land; it is not the law. It does not define government powers or individual rights.
Establish Justice is the first of five objectives outlined in the 52-word paragraph that the Framers drafted in six weeks during the hot Philadelphia summer of 1787. They found a way to agree on the following basic principles:
"We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defense, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America."
I think.
Explanation:
Which type of rock is non-foliated metamorphic rock?
Answer:
slate, phyllite,schist and gneiss
Answer:
Letter A: Gneiss
Explanation:
The knee ________.
a. is completely enclosed by a strong articular capsule
b. is a multiaxial joint
c. has ligaments present inside as well as surrounding the articular capsule
d. is the simplest joint in the body
Answer:
The correct answer is: C) has ligaments present inside as well as surrounding the articular capsule.
Explanation:
The knee joint is a hinge (ginglymus) type synovial joint that is formed by three different bones: the femur, the tibia, and the patella.
Given the nature of the hinge joint, it should only allow flexion and extension, but it also grants a small degree of internal and external rotation. For this reason, the knee joint cannot be considered a multiaxial joint, since it only fully moves in one axis and slightly moves in a second one (this is why most people consider the knee joint a uniaxial joint, but some others say it is actually a biaxial one).
The knee joint isn't completely enclosed by a strong articular capsule. The knee joint is rather thin and it contains the patella, menisci, bursae, and ligaments of the knee.
The knee is not the simplest joint in the body. It is formed by three bones and there's also the menisci, which are fibrocartilaginous structures that help increase the stability of the joint and act as shock absorbers as well.
The knee does have ligaments both inside and outside the articular capsule. The intracapsular ligaments are two cruciate ligaments (one anterior and one posterior), which hold the tibia in place; the transverse ligament that connects both menisci; and the posterior and anterior meniscofemoral ligaments. The extracapsular ligaments are the patellar ligaments (connects the patella to the tibia), the two collateral ligaments (medial and fibular, one on each side of the knee, connecting the femur to the tibia and to the fibula, respectively), and the anterolateral ligament.
in high elevation forests n Pennsylvania, ecologists have noticed a serious decline in certain tree species. Some scientists propose that increased soil acidity might be the cause. Whats the phenomenon? A. Mercury contamination B. Decreased in pH caused by climate change C. Acid rain, which is caused by SO2 from combustion mixed with atmospheric water vapor D. Ozone depletion
Answer:
I would choose answer B.
Explanation:
Acid rain is caused by combustion chemicals mixing with water vapor in the atmosphere. It normally results in high amounts of acid in the soil, and surrounding bodies of water.
I've had my cat for three years. In that time she's gained half a pound. Explain the origin of her increased mass and whether atoms are still the same atoms as when she consumed them.
