Where is Earth's Water?
"Water, Water, Everywhere...."
You've heard the phrase, and for water, it really is true. Earth's water is (almost) everywhere: above the Earth in the air and clouds, on the surface of the Earth in rivers, oceans, ice, plants, in living organisms, and inside the Earth in the top few miles of the ground.
For an estimated explanation of where Earth's water exists, look at this bar chart. You may know that the water cycle describes the movement of Earth's water, so realize that the chart and table below represent the presence of Earth's water at a single point in time. If you check back in a million years, no doubt these numbers will be different!
Left bar: All water, freshwater, and saline, on, in, and above the Earth.
Center bar: All freshwater
Right bar: Only the portion of freshwater residing in surface water (rivers and lakes, etc), snow and ice, and relatively-shallow groundwater.
Here is a bar chart showing where all water on, in, and above the Earth exists. The left-sidebar chart shows how almost all of Earth's water is saline and is found in the oceans. Of the small amount that is actually fresh water, only a relatively small portion is available to sustain human, plant, and animal life.
Bar chart showing the distribution of water on, in, and above the Earth.
Sources/Usage: Public Domain.
Notice how of the world's total water supply of about 332.5 million cubic miles of water, over 96 percent is saline. And, of the total freshwater, over 68 percent is locked up in ice and glaciers. Another 30 percent of freshwater is in the ground. Fresh surface-water sources, such as rivers and lakes, only constitute about 22,300 cubic miles (93,100 cubic kilometers), which is about 1/150th of one percent of total water. Yet, rivers and lakes are the sources of most of the water people use every day.
Fermentation and aerobic respiration break down glucose to make
energy. Which statement correctly compares the two processes?
Fermentation uses more oxygen than aerobic respiration uses.
A.
B.
Aerobic respiration uses more glucose than fermentation uses.
C.
Aerobic respiration produces less energy than fermentation
produces
D.
Fermentation produces less energy than aerobic respiration
produces.
Answer: Fermentation produces less energy than aerobic respiration produces.
Explanation:
Just took the quiz
Fermentation has been the process that occurs in the bacteria and yeasts to break sugar in absence of oxygen. It produces less amount of energy than the process of aerobic respiration. Thus, option D is correct.
What are fermentation and aerobic respiration?Fermentation has been the process of producing energy by the chemical breakdown of the carbohydrates molecule by the enzymes in absence of oxygen molecules in yeasts, bacteria, etc. The end products also produced carbon dioxide gas as an effervescence.
On the other hand, aerobic respiration has been one of the processes of cellular respiration that uses oxygen to break the carbohydrate molecules into energy in the form of ATP. This type of respiration is the most common and occurs in the majority of organisms.
Both processes use carbohydrate molecules to produce energy, adenosine triphosphate (ATP) at the end of the reaction. Aerobic respiration is metabolic and fermentation has been the catabolic process. The amount of energy produced in fermentation is relatively less compared to aerobic due to incomplete oxidation of glucose.
Therefore, in option D. the amount of energy differs in both processes.
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Suppose a volcano sent large amounts of ash into the air that blocked the sunlight over a large area of ocean water for several months. Would this affect life in the ocean? Explain why or why not.
Answer:
Explanation:
Certain types of volcanic ash do not dissolve easily in water. Instead, they clump on the surface of the ocean in pumice rafts. These rafts can clog salt water intake strainers very quickly, which can result in overheating of shipboard machinery dependent on sea water service cooling.
Select All of the characteristics of natural selection
Answer:
Edit with options and I will comment my answer
Explanation:
2. Explain the purpose of alternation of generations
Answer:
The alternation of generations allows for both the dynamic and volatile act of sexual reproduction and the steady and consistent act of asexual reproduction. When the sporophyte creates spores, the cells undergo meiosis, which allows the gametophyte generation to recombine the genetics present.
Explanation:
Which best describes the result of Mendel’s work with pea plants
Answer:
He has found the basic ideas about genetics.
Explanation:
If less dense crust collides with less dense
crust, then this must be an example of
A. continental crust to continental crust collision..
B. continental crust to oceanic crust collision.
C, oceanic crust to oceanic crust collision.
D, a subduction zone.
The subduction zone is the area where a less dense plate collides with a denser plate, causing the subduction of this last one. The correct option is D. a subduction zone
What is a subduction zone?
The term subduction refers to the sinking process of one plate under another plate after a collision event.
Subduction zones are the areas in which plates approximate, collide, and one of them must subduct under the other one.
The plate that subduces is always the denser and older one. The less-dense plate superpose over the denser one and push it down toward the mantle. At this point, rocky material from the subductive plate melt again.
The correct option is D. a subduction zone.
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Answer:
A. Continental crust to continental crust collision
Explanation:
Did the lesson and got it right
What is most likely to occur if different plant species compete for the same
requirements in an ecosystem?
a. One species will be eliminated from the ecosystem
b. the species will develop different requirements
c. the species will atler the eviroment so that both survive
d. one species will adapt to a different environment
Which of the following does not occur during anaphase?
A. Centromeres divide
B. Chromosomes move toward opposite poles
C. Spindle fibers pull on the chromosomes
D. Nuclear envelope dissolves
Answer:
D. nuclear envelope dissolves
Explanation:
this happens in prophase
Anaphase is a part of meiosis. In anaphase, the nuclear envelope does not dissolve. In this phase, centromeres divide, spindle fibers pull on the chromosomes, and the chromosomes move toward opposite poles. Hence, opton D is true.
What is anaphase?
Anaphase is a part of both meiosis and mitosis in the cell division process. In mitosis, the anaphase separates the daughter chromatids of the homologous chromosome by pulling them via their centromeres to the opposite poles. In meiosis, there are two stages of anaphases, such as anaphase I and anaphase II, and in each stage there are different types of chromosome separation.
In meiosis I, in anaphase I, each chromosome of the homologous chromosome is attached with a spindle fiber, but this phase only separates the homologous chromosome. The further separation of sister chromatids takes place in meiosis II, with each cell getting a haploid set.
Hence, in anaphase, the nuclear envelope does not dissolve, as this takes place in prophase. The last option is true.
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When going down a slope on a roller coaster, does your stomach actually move up?
Yes
No
Answer:
Yes
Explanation:
A proteinâs function is determined by the properties of its amino acids. Which replacement of one amino acid with another is least likely to affect the proteinâs function?
a. A hydrophilic amino acid is replaced by a hydrophobic amino acid. an amino acid with a C=O group is replaced by an amino acid with an O-H group.
b. A charged amino acid is replaced by an amino acid with a side chain consisting of a group with three C-H bonds.
c. A hydrophobic amino acid is replaced by a charged amino acid.
b. A negatively charged amino acid is replaced by a positively charged amino acid.
Answer:
an amino acid with a C=O group is replaced by an amino acid with an O-H group
Explanation:
When an amino acid is substituted by another with opposite properties the replacement will modify the structure (and consequently also the function) of the resulting protein. For example, it is expected that the replacement of amino-acid residues with different solubility will alter the protein’s structure and this protein will establish different interactions with water, cell structures, or further segments of the protein. Therefore, in the cases above enumerated, only C-O and O-H groups have similar properties (i.e. they are hydrophilic and have polar bonds), and thereby it is expected that this replacement has no significant incidence on the protein’s structure and function.
Tongue rolling is dominant. A father cannot roll his tongue but a mother can. Of their three children, one daughter and one son cannot roll her tongue. The other daughter can roll her tongues.
For the Tongue Rolling pedigree, what is the genotype of a tongue roller?
A.RR and rr
B.rr and Rr
C.Rr and RR
D.rr
Answer:
C. Rr and RR
Explanation:
I believe this is the answer because they said that it was a dominant geen.
Daoism can be summarized by which statement?
Answer:
A philosophical thought or school that teaches beliefs and religions, another way of passing on traditions and important legacies in China.
I hope this helps!
Can some body pls give me a description of genetically modified foods?
Answer:
Foods generated from genetically modified (GM) species have had their genetic material (DNA) altered in a way that does not occur naturally, for as by introducing a gene from another creature.
Explanation:
How are cells organized in complex organisms? List the levels of organization in animals
such as humans.
Answer:
Humans—and other complex multicellular organisms—have systems of organs that work together, carrying out processes that keep us alive. The body has levels of organization that build on each other. Cells make up tissues, tissues make up organs, and organs make up organ systems.
Why it is important veterinary?
Answer:
The veterinary profession contributes to improvement of human and public health by improving agriculture and food systems, advancing biomedical and comparative medical research, preventing and addressing zoonotic diseases, enhancing environmental and ecosystem health, and helping manage 21st century public health
Explanation:
When certain molecules are pumped across biological membranes against a concentration gradientvia active transport, ATP is used. In the cells of our bodies, for example, sugars are activelytransported and metabolized within the membrane-enclosed mitochondria. Prokaryotes, incontrast, lack mitochondria but are nonetheless able to metabolize the same sugars. Based on the details provided in this scenario, whiat would be expected to beTRUE?
Answer:
tyher are 12 cells
Explanation:
IK
There's a block of metal with the dimensions below that weighs 2500 grams. What is the density of
the metal?
The correct answer is 37.72 g/[tex]cm^{3}[/tex]
Explanation:
To find the density of this block the first step is to find the total volume or space occupied by the block. This is because the volume is one of the factors that determines density (Density = mass ÷ volume). Now, to find the volume multiply the three sides given or the length, width, and heigh:
6 cm × 3 cm × 4 cm = 72 [tex]cm^{3}[/tex]
Finally, calculate the density:
2500 grams ÷ 72 cubic centimeters = 37.72 g/[tex]cm^{3}[/tex]
Give one example of an eco system in New Mexico?
Answer:
New Mexico is dominated by five major ecosystems: (1) alpine-conifer, (2) desert and basin, (3) juniper-scrub, (4) plains-mesa, and (5) riparian habitats such as cottonwood bosque and willow marshes. Each of these ecosystems brings a characteristic flora and fauna to our state.
Provide 2 examples of enzymes and the pH of the environment in which it works.
Answer:
12. Provide 2 examples of enzymes and the pH of the environment in which itworks.13. Describe the effect of temperature on enzyme function.14. Click onirtual_labs_2K8/labs/BL_02/index.html. In this experiment you will determine theeffects of substrate concentration and pH on the initial rate of an enzyme-catalyzedreaction.15. What is different in people who suffer from lactose intolerance when comparedwith“normal individuals”?16. Read the objectives and procedures. Click the monitor and watch the videoabout enzyme action. Summarize the video.
Two examples of enzymes and their pH in the environment in which it works are pepsin whose pH is 2 and Lipase whose pH is 8.
What are enzymes?Enzymes are biocatalysts made up of proteins to increase the speed of the reaction.
Enzymes do not involve in the reaction and in the end of the reaction they separate from the reaction and their substance is specific. They are specific to reactions whose speed is increased by these enzymes in high temperatures and pH their structure changed as they are protein and with extreme where they also get the nature.
The two enzymes are pepsin works best in strongly acidic environments and lipase works best in a basic environment.
Therefore, Pepsin, an enzyme with a pH of 2, and lipase, an enzyme with a pH of 8, are two examples of enzymes and the environments in which they function.
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Plants provide___to breath?
Answer:
oxygen
Explanation:
Plants use our carbon dioxide to create oxygen.
Answer:
Oxygen
Photosynthesis and respiration are the two essential processes that allow life to sustain on earth. In a way, they are a cycle — plants help humans breathe by providing us with oxygen, and humans help plants "breathe" by providing them with carbon dioxide.
Which is a major component of the respiratory
system?
o pharnyx
O heart
Oaorta
Answer:
The pharynx is the major component of the respiratory system
Who conquered England?
William of Normandy
Charlemagne
Pope Gregory VII
Henry IV
Answer:
William, duke of Normandy
Explanation:
Answer:
A ez pez edg 2021
Explanation:
One's motivation can lead people to interpret the same situation differently.
Please select the best answer from the choices provided
T
F
Answer:
True
Explanation:
Motivation can influence one’s perception by influencing focus and expectations. Got it right on the quiz.
Answer:
true
Explanation:
WHOEVER RESPONDS FIRST WILL GET MARKED BEST!
Which of the following is NOT an
advantage of selective breeding?
A maintains certain stable traits to pass
down to the offspring
B traits help the animal prosper in
confinement
C breedin for only one trait can cause
problems in other traits
D makes the species stronger
PLEASE I NEED THIS ASAP If you had a cell that was cube-shaped with a side length of 20µm, calculate the surface to volume ratio of the cell. Round your answer to the tenths place.
Answer:
Ratio = [tex]3\times 10^5[/tex]
Explanation:
Side of a cube, a = 20 µm
[tex]a=20\times 10^{-6}\ m[/tex]
The surface area of a cube, A = 6a² (a is side of the cube)
The volume of a cube, V = a³
The ratio of the surface to volume ratio of the cell will be given by :
[tex]R=\dfrac{6a^2}{a^3}\\\\R=\dfrac{6}{a}\\\\R=\dfrac{6}{20\times 10^{-6}}\\\\R=3\times 10^5[/tex]
So, the ratio of the surface to volume ratio of the cell [tex]3\times 10^5[/tex].
Answer:
0.3
Explanation:
I got it right on my AP Bio assignment on edge
If the Earth suddenly stopped having seasons, what could be the likely cause?
The Earth moved farther away from the Sun
The Earth is no longer tilted
The Moon disappeared
The Earth’s rotation has increased
Answer:
The Earth is no longer tilted.
Explanation:
From my understanding, the reason we have season's is because the Earths axis is tilted.
Which muscle can you find closest to the femoral region of the body?
O Internal Oblique
O Soleus
O Trapezius
O Quadriceps femoris
Help me
The muscle that you would find closest to the femoral region of your body is: D. Quadriceps femoris.
What is the Quadriceps Femoris?The quadriceps femoris can be described a large group of fleshy muscles that is found covering the front and sides of the thigh.
The quadriceps femoris consists of the rectus femoris, vastus lateralis, vastus medialis, and the vastus intermedius.
The thigh is also called the femoral region.
Therefore, the muscle that you would find closest to the femoral region of your body is: D. Quadriceps femoris.
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The second law of thermodynamics tells us that when energy changes forms, ___________.
A: It always moves to a lower and then a higher level
B: IT becomes more easily recycled
C: Some of it is lost, usually as heat
Answer:
C
Explanation:
Entropy occurs as heat is gradually lost in the second law of thermodynamics.
What is the term that refers to knowledge of where a person's body parts are located in space?
Answer: Proprioception
Explanation:
2. What is exponential growth? When does it occur?
Answer:
Exponential growth is a pattern of data that shows greater increases as time goes on. you can recognize exponential growth when there is a curve of an exponential function. If a population of mice doubles every year starting with two in the first year, the population would be four in the second year, 16 in the third year, 256 in the fourth year, and would keep rising. The population is growing to the power of 2 each year in this case which means exponentially. It occurs when a pattern of data shows high increases over time