oxygen is a substance that dissolves in water. fish absorb from the water. When dissolved oxygen levels are low, it can be hard for organisms to survive. Is this a chemical property, or a physical property. please explain
Answer:
Physical Property
Explanation:
Chemical properties relate to an actual chemical change. In this case only the quantity of oxygen concentration changes, there is no chemistry change.
Chemical property change example: Iron nail falls into the water and oxidizes/rusts.
Hey yall you don't know me but can someone help ill do anything
Answer:
D is the answer
Explanation:
cause if you make it illegal for them to be hunted the population will grow (it wouldn't let me send without the sentence being 20 characters sorry)
Sharks and dolphins are not closely related but have many similar features due to the
environment where they are found. This is an example of:
A:Convergent evolution
B:Artificial selection
C:Natural selection
D:divergent evolution
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What is the mass of a falling rock if it produces a force of 145N while accelerating at a rate of 5 m/s^2
Answer:
29 kg
Explanation:
I just did the math. My bad if it's wrong
Why is the cell membrane often called the plasma membrane?
Answer:
The plasma membrane, also called the cell membrane, is the membrane found in all cells that separate the interior of the cell from the outside environment.
Explanation:
a real DNA molecule consists of THOUSANDS of these pairs of nucleotides. What is the pairing arrangement of nitrogen bases
Answer:
The correct answer is - Cytosine pairs with guanine and thymine pairs with adenine.
Explanation:
In a real DNA or B-DNA the interaction or arrangement of the nitrogen bases are defined and almost remain the same. The bond between the nitrogen bases is hydrogen bonds.
The hydrogen bond between the purine and pyrimidines (types of nitrogen bases) are as follows:
Adenine always pairs with Thymine and Guanine always pairs with Cytosine in a real DNA molecule.
true or false- ebola virus is spiral in nature
Answer:
TRUE (￣ω￣)/
Explanation:
Ebola viruses are mainly found in primates in Africa and the Philippines; there are only occasional Ebola outbreaks of infection in humans. Ebola hemorrhagic fever occurs mainly in Africa in the Republic of the Congo, Gabon, Sudan, Ivory Coast, and Uganda, but it may occur in other African countries.
Plants and animals exchange materials through the process of photosynthesis and cellular respiration. Which of these statements is true about the way these two processes are related?
A.The products of photosynthesis inhibit (stop) cellular respiration.
B.The products of photosynthesis are also the products of cellular respiration.
C.The reactants of photosynthesis are also the reactants of cellular respiration.
D.The products of photosynthesis are the reactants of cellular respiration.
Answer:
the product of photosynthesis ara the reactants of cellular respiration
what is the difference between the flowing water model and the flowing water on earth?
Answer:
Stream running down a mountain; the water flows over rocks and trees. ... river—complete the hydrologic cycle by returning precipitation that falls on land to the oceans
Explanation:
Answer:
Because the model flowing water is not real
Explanation:
give meh a crow Arghhhh
homologous chromosomes move toward opposite poles of a dividing cell during ______.
Answer:
anaphase
Explanation:
Explain the Role of the Most
bucco in Living Organisms
Click the statement that best describes the role of each element in living organisms.
Carbon
Oxygen
Hydrogen
DONE
Answer:
carbon
Explanation:
The purpose of both mitosis and meiosis is to create new cells. Both processes involve the replication of genetic material within the cell, and
both take place within a sexually reproducing individual. There is a difference between the processes, however. What is one crucial
difference?
SC.912.L. 16.17
Meiosis creates an exact replica of the parent cell, while mitosis shows genetic diversity.
Mitosis creates an exact replica of the parent cell, while meiosis shows genetic diversity.
Only meiosis allows for the possibility of gene point mutations.
Only mitosis allows for the possibility of translocation.
Answer: Mitosis creates an exact replica of the parent cell, while meiosis shows genetic diversity.
Explanation:
I did the test too
The one crucial difference between meiosis and mitosis is mitosis creates an exact replica of the parent cell, while meiosis shows genetic diversity.
The correct option is (B).
What is the difference between meiosis and mitosis?Mitosis and meiosis both are the process of cell division.
Mitosis occurs generally when cell growth happens, the cell divides itself to produce two identical daughter cells.
Meiosis, in cell division, occurs in germ cells and in the division there is a formation of four daughter cells.
Mitosis produce exact identical cell with equal number of chromosome, whereas meiosis produce four haploid cells with genetic diversity.
Thus, the option (B)Mitosis creates an exact replica of the parent cell, while meiosis shows genetic diversity is correct.
Learn more about cell division, here:
https://brainly.com/question/725029
Which of the following are reactants in the process of photosynthesis?
Answer:
Photosynthesis requires sunlight, carbon dioxide, and water as starting reactants (Figure 5.5). After the process is complete, photosynthesis releases oxygen and produces carbohydrate molecules, most commonly glucose. These sugar molecules contain the energy that living things need to survive.
Explanation:
Answer:
carbon dioxide and water
Explanation:
which of the following are reactants in the process of photosynthesis?
1. Why do you have a dedicated circulation pathway for the spleen, stomach, pancreas, gallbladder, and intestines that passes through the liver
Answer:
Because the liver is a crucial organ that processes the nutrients that the blood carries. Also, we storage blood when the volume of it is above the normal levels.
Explanation:
The blood that circulates through the spleen, stomach, pancreas, gallbladder, and intestines has to pass through the liver. This organ will metabolize proteins, lipids, cholesterol, bilirubin, toxins, and steroid hormones, also store glycogen, fats, Ferrum, and vitamins, and produce bile. The nutrients that the blood carries are processed in the liver to keep the body healthy and to eliminate substances through bile. The bile will also help with the digestion of nutrients in the intestine.
When the blood from these organs (spleen, stomach, pancreas, gallbladder, and intestines) goes to the liver via the hepatic vein, the hepatic cells process it and deals with the functions previously mentioned. Once that blood is filtered, it goes to the hepatic veins, and from there, to the heart.
The liver and Spleen are the two primary organs of the body, through which blood circulates and purifies. The organs like the gall bladder, spleen, liver, and pancreas are involved in the circulation of blood.
The blood circulated between the organs like the spleen, stomach, intestine, and pancreas is sent to the liver.
The liver plays a crucial role in the metabolism of toxins, bilirubin, proteins, lipids, and cholesterol. Also, glycogen, hormones, and vitamins are also stored in the liver.
The nutrient-rich blood is present in the blood, which helps in maintaining the health and proper functioning of the body.
The blood from these organs is delivered by the hepatic vein to the liver, and the hepatocytes metabolize the nutrients. The blood once filtered and purified, is delivered to the heart via hepatic veins.
Thus, the blood circulation between the liver and other organs like the spleen and gall bladder is necessary to metabolize nutrients before sending them to the heart.
To know more about blood circulation, refer to the following link:
https://brainly.com/question/25350976
Which of the following is an example of heat transfer by conduction?
Answer:
Explanation:
Everyday Examples of Heat or Thermal Conduction
As the pad heats up, it transfers heat to the part of your body that it is in contact with. The heat from a hot liquid makes the cup itself hot. If you grab a cup that has hot coffee, tea or broth in it, the cup itself will be hot and your hands will feel it.
The burning of fingers on a hot iron is an example of heat transfer by conduction. Therefore, option A is correct.
What is heat transfer by conduction?When two objects with different surface temperatures come into contact, conduction takes place. At the point of contact, energy is transferred directly from the material in the hotter object to the material in the cooler item.
When a substance is heated, the particles become more energetic and vibrate more. Then, as these molecules collide with surrounding particles, some of their energy is transferred to them. The energy is then transferred from the hot end of the material to the colder end by repeating this process.
The act of heating a skillet on a stovetop is a typical illustration of conduction. The surface of the pan receives direct contact with the burner's heat. Hence, option A is correct.
Learn more about conduction, here:
https://brainly.com/question/10219972
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Which example listed below is not a population?
A. all the plant life in a meadow
B. all the red maple trees in a forest
C. all the Saguaro cacti in a desert
D. all the sunshine in a lake
Answer:
D. all the sunshine in a lake
Describe the nervous response pathway when you taste something bad and spit it out.
Answer:
you taste it and then you're brain says this is disgusting so then you spit it out
Explanation:
its simple science
MULTIPLE CHOICE
Put the following items in order from smallest to largest.
А
gene, chromosome, nucleus, cell, base, DNA
B
DNA, gene, chromosome, base, nucleus, cell
с
cell, nucleus, chromosome, gene, DNA, base
D
base, DNA, gene, chromosome, nucleus, cell
Answer:
D
Explanation:
Base would be the smallest and cell would be largest
Answer:
D
Explanation:
The base is the smallest out of everything in these choices, then it should be the DNA, Gene, and so forth
An empty field has no plants growing on it. When it rains, some of the field's sail washes away downhill.
Which statement best explains how planting grass on the field might help reduce soil erosion?
O A Grass will make the soll more wet
B. Grass will help hold the soil together.
c Grass will increase the amount of soil.
O O D. Grass will stop water from moving over the field.
O
Answer:
b grass will help hold the soil together
why could an ecosystem be unable to sustain an increase in carnivores?
A. There is not enough prey
B. The carnivores now have more space
C. plants growth increases
D. It is a marine ecosystem
What is a fossil? Different types?
Answer:
a fossil is a bone under the ground
Explanation:
and ex of a fossil is a dinosaur fossil
In summary, transgenic _______________ flies will produce light in a pattern that reflects the _________________________________ activity of the _______________ gene.
Answer: per-luc; transcriptional; period
Explanation: While the transgenic fly is expected to have normal transcriptional activity per gene, and a normal biological clock, however, the transgenic fly can have red eyes and per transcriptional activity can be reported as light emissions. Transcription of the transgene results in production of the enzyme luciferase, which acts on luciferin substrate. Therefore, in summary, transgenic per-luc flies will produce light in a pattern that reflects the transcriptional activity of the period gene.
Why might intermittency be a problem with new energy system?
expenses in establishing new energy system
I need someone to answer number 9 please
If phosphofructokinase experienced a mutation that interfered with substrate binding, then what other enzyme is going to be most immediately impacted in terms of accessing substrate
Answer: Aldolase
Explanation:
In the metabolism of glucose( glycolysis) phosphofructokinase is an enzyme that catalyzes the conversation of fructose-6-phosphate into fructose-1,6-bisphosphate. This in turn is converted to pyruvate after various steps of enzymatic activity in the glycolytic pathway.
If phosphofructokinase experienced a mutation that interfered with substrate binding, the enzyme that is going to be most immediately impacted in terms of accessing substrate is the ALDOLASE.
Aldolase enzymes cleave fructose-1,6-bisphosphate to triose phosphates( glyceraldehyde 3-phosphate and dihydroxy-acetone phosphate) facilitating an increase in anaerobic production of ATP in muscle.
Therefore, the substrate for binding of aldolase, which is fructose-1,6-bisphosphate is lacking due to mutation of phosphofructokinase enzyme.
According to the fossil record above, during which era did mammals first appear?
A)
Cenozoic
B)
Mesozoic
0
Paleozoic
D)
Modern Day
Answer: The answer is A
Explanation:
took the quiz on usatestprep
Answer:A)
Explanation: Mammals first appeared in the Cenozoic era. My teacher explained it and it's visable in the picture.
Could I get help on these 2 questions .
Answer:
The ocean, clouds, and under the earth
Which of the following systems of the body interact when a stressful situation causes a person's heart rate to increase and pupils of the eyes to dilate?
A.
nervous system and excretory system
B.
endocrine system and nervous system
C.
respiratory system and nervous system
D.
nervous system and digestive system
Answer:
B
Explanation:
Some scientific computer models predict that crop yields for corn and wheat, two food staples that provide for two thirds of the worlds calorie consumption, will decline due to global warming. Which of these is the least likely cause for crop production reduction as caused by climate change?
Answer:
its "D" I got it right.
Explanation:
put the answer choices, it's not hard
40 Points
What is the movement of air during the day where land and water meet?
Question 1
options:
Cooler air over land moves toward the water, where it is warmed by radiation.
Cooler sea air moves toward land, where conduction from the land warms it.
Direction cannot be predicted; it must be observed.
Why are climate and latitude so closely related?
Question 2 options:
Lines of latitude are based on climate zones.
Radiant energy from the sun heats locations closest to the equator the most.
Higher latitudes have fewer buildings and a greater ability to absorb radiant energy.
Answers:
Question 1: Cooler air over land moves toward the water, where it is warmed by radiation.
Question 2: Radiant energy from the sun heats locations closest to the equator the most.