what are the similarities and differences between Atoms and molecules?
Answer:
Physical matter is made up of atoms and molecules. An atom is the sub-component of a molecule, or the smallest unit of matter. It is the smallest part an element can divide into. A molecule is made up of atoms that are bound by ionic, covalent or metallic bond.
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Explanation:
Difference
atom is the smallest unit of an element that can or cannot exist freely whilst on the other hand, a molecule is a set of atoms that are held together with the help of a bond and is the smallest unit of a compound.
Similarities
both atoms and molecules react with each other and other molecules and atoms.
In which case would you use a dissecting microscope rather than a compound microscope? D.to view the cells of the skin B.to determine the shape of the bacteria A.to view the surface of a plant leaf C.to determine the type of virus in a specimen
What conclusion from the study of Mesopotamia can be used in irrigation practices today?
A.Continuous irrigation is a good thing.
B.Irrigation methods with the least impact on the water table may be beneficial.
C.Irrigation should not be used in hot climates,
D.Farming should not be done in hot climates.
Answer:B
Explanation:
Mesopotamia has been the Western Asian region that is known for early civilization. The method that has the least impact on the water table is the best irrigation method. Thus, option B is correct.
What are Mesopotamian irrigation practices?Mesopotamian irrigation practices have been the use of canals and shadufs for direct use in agricultural fields. They irrigated their land by digging holes and storing the water. They also built canals and connected them to the ditches.
For modern practices, the Mesopotamian irrigation system is a model as it defines the best irrigation method to be the one that has the least impact on the water content and table.
Therefore, option B. the best irrigation method is that uses the eater most efficiently and does not negatively impact the water table.
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Our cells have 23 pairs of chromosomes to replicate for cell division. While picking apples in the orchard, you accidentally cut your hand on a sharp twig. Your skin must make new cells to heal the cut. What part of the cell cycle is shown and how many pairs of chromosomes are in the new formed cells? a S- duplication of the DNA, 23 pairs chromosomes b G2 Checkpoint- checking cell size and DNA replication, 46 pairs of chromosomes c G1 Checkpoint- checking cell size and for enough proteins, 46 pairs of chromosomes d M-complete cell division, 23 pairs chromosomes
Answer:
the answer is a
Explanation:
hope this helps
The part of the cell cycle shown in the image and the number of pairs of chromosomes in the newly formed cells is as follows: M-complete cell division, 23 pairs of chromosomes.
CELL CYCLE:
Mitosis is a cell division used for growth and repair of damaged tissues in our body. Mitosis results in the formation of two daughter cells that are genetically identical to one another. The cell cycle comprises of the G1, G2, S and M phases. The M phase is the mitotic phase where the the nucleus of the cell divides resulting in two daughter cells. In this question, skin that was cut by a sharp twig must make new cells to heal the cut using mitosis. The image attached in this question shows the mitotic division process. Therefore, the part of the cell cycle shown in the image and the number of pairs of chromosomes in the newly formed cells is as follows: M-complete cell division, 23 pairs of chromosomes.Learn more at: https://brainly.com/question/12327654?referrer=searchResults
Explain in your own words an atom and an element.
Answer:
Explain in your own words an atom and an element.
Explanation:
A particular atom will have the same number of protons and electrons and most atoms have at least as many neutrons as protons. An element is a substance that is made entirely from one type of atom. For example, the element hydrogen is made from atoms containing just one proton and one electron.
HELP!
The answer to which of these scientific questions would MOST likely explain why all life on Earth is
based on carbon?
O A. How many carbon isotopes are stable?
O B. How much carbon is found in Earth's crust?
O C. What are the naturally occurring states of carbon?
D. What is the configuration of carbon's valence shell?
Answer: A is the answer
Answer:
D. What is the configuration of carbon's valence shell?
Explanation:
Carbon is considered special and very versatile because of the number of valence electrons it has. Because it has four valence electrons, it's able to combine with many other elements, which makes it an essential building block of life.
the building block (monomers) of dna are?
Answer:
nucleotides are the monomers of dna
You are required to make 10mL of a 0.5M solution of HCl. Your stock solution of HCl is 90M. Using distilled water (dH2O) as a solvent, how much of each component will you need to make the desired final solution?
Answer:
0.0556 mL of 90 M HCl would be taken and 9.944 mL distilled water added to make 0.5 M, 10 mL HCl solution.
Explanation:
From the dilution equation:
Initial molarity (m1) x initial volume (v1) = final molarity (m2) x final volume (v2).
In this case, m1 = 90 M, v1 = ?, m2 = 0.5 M, and v2 = 10 mL
v1 = m2 x v2/ m1 = 0.5 x 0.01/90 = 0.0000556 L
v1 = 0.0556 mL
This means that the initial volume of 90 M HCl to be taken is 0.0556 mL. Since the final volume to be prepared is 10 mL,
10 - 0.0556 = 9.944 mL
Hence, 0.0556 mL of 90 M HCl would be taken and 9.944 mL distilled water added to make 0.5 M, 10 mL HCl solution.
The attractive force between two bodies of different substances that are
in contact with each other. *
Activation Energy
Enzyme
molecule
Adhesion
what type of reaction does carbon dioxide, water and energy make
Answer:
Chemical reaction
Explanation:
Respiration is a chemical reaction that takes place in cells and allows them to release energy. Reactants are the substances that react together in a chemical reaction.
Glucose+Oxygen---Water+Carbon Dioxide(+energy)
A human-centered worldview states that humans, as the owners of Earth, can treat resources as
they see fit
true
false
What are three products of cellular respiration?
Answer:
Cellular respiration is this process in which oxygen and glucose are used to create ATP, carbon dioxide, and water. ATP, carbon dioxide, and water are all products of this process because they are what is created.
Explanation:
Interpret and explain this graph on photosynthesis
Answer:
This graph is showing how different rates of light intensity, environmental temperature, and Carbon dioxide affect the rate of photosynthesis. It looks like the greatest rate of photosynthesis has .13% Co2 at 30 degress celsius.
Explanation:
I was always taught that they y-axis is the dependent variable and going off that, all the other variables can be controlled and changed.
Solve for the value of p.
(9p-6)
(6p+6)
Answer:
1908#’idjmdms,s
Explanation:
Answer:
If 9p-6=6p+6 then p=4
Explanation:
Since 9*4-6=30 and 6*4+6=30 then the answer is 4 for p.
Which molecule separates the contents inside of the cell from the contents outside of the cell
Answer:
Which molecule separates the contents inside of the cell from the contents outside of the cell
Explanation:
cell membrane
Every cell in the body is enclosed by a cell (Plasma) membrane. The cell membrane separates the material outside the cell, extracellular, from the material inside the cell, intracellular. It maintains the integrity of a cell and controls passage of materials into and out of the cell.
The molecule that separates the contents inside of the cell from the contents outside of the cell is LIPIDS.
Lipids represent a broad range of biomolecules made up of carbon (C), hydrogen (H) and oxygen (O) atoms.In some cases, lipids also contain phosphorus (P), nitrogen (N) or sulfur (S).Lipids (i.e., phospholipids and cholesterol) represent the main biomolecules of the cell membrane whose function is to separate the interior of the cell from its surrounding environment.In conclusion, the molecule that separates the contents inside of the cell from the contents outside of the cell is LIPIDS.
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Name two ways that atoms can combine to become more stable in compounds
Answer:wo processes by which elements can combine to form stable compounds are transferring electrons from one atom to another (ionic compounds) or by sharing electrons (covalent compounds).
Explanation:
i had that question before:)
Answer:
Covalent bonding and Ionic bonding.
Covalent bonding is when atoms share electrons in order to form a stable electron arrangement. The two positive nuclei are attracted to the positive shared electron which holds the molecule together.
Ionic bonding is a giving and accepting of electrons between a metal and non metal. A metal will give the non-metal one or more electrons in order for both to form a stable electron arrangement.
Explanation:
Photosynthesis is the main source of energy for these
eukaryotes. This multicellular organism has cell walls
around all of its cells. .
and cell membranes around all lf its cells
A ____ is the basic unit of structure and function of living things.
Answer:
Cell
Explanation:
A cell is the basic unit of structure
Answer:
Cell
Explanation:
The answer is a cell. Cells are the building blocks of the living.
About how long ago did our solar system start to form?
About 5 million years ago
About 14 million years ago
About 5 billion years ago
About 14 billion years ago
Answer:
About 5 billion years ago
Sorry:
Sorry this is so late.
Answer:
C. 5 billion years ago
Explanation:
The real answer is about 4.6 billion years ago but that rounds up to 5 billion years.
Please:
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James adds some magnetic marbles to a glass jar full of ordinary marbles, and then shakes up the jar. What do you think will happen to the magnetic marbles?
Answer:
Magnetic marbles will tend to attract each other.
Explanation:
Magnetic marbles are composed of ferromagnetic materials, which indicates that they function as a magnet and have the ability to attract other objects formed by ferromagnetic materials. In this case, we can say that the magnetic marbles attract each other and inside a jar containing magnetic marbles and common balls, the magnetic marbles will tend to attract and group together.
When James shakes the glass jar ; The magnetic marbles will attract each other
The magnetic marbles will attract each other because of the ferromagnetic materials that each magnetic marble contains. marble is a rock ( metamorphic ) that is made up mainly of calcium carbonate .
when rocks/compounds contain ferromagnetic materials they will act as magnets thereby attracting any metallic object or any magnetic material within close proximity. therefore the magnetic marble will attract each other inside the glass jar
Hence we can conclude that When James shakes the glass jar ; The magnetic marbles will attract each other.
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What is one function of proteins?
Answer:
. It helps repair and build your body's tissues, allows metabolic reactions to take place and coordinates bodily functions.
Explanation:
For each food listed below, choose whether it has all single carbon-to-carbon bonds or at least one double carbon-to-carbon bond.
Answer:
Peanut Butter: All single carbon-to-carbon bonds
Sunflower Oil: At least one double carbon-to-carbon bond
Cheddar Cheese: All single carbon-to-carbon bonds
Explanation:
Which of the following options shows how energy is stored for immediate use?
immediate use?
a
Phosphate group added to adenosine diphosphate (ADP + P)
b
Phosphate group is added to adenosine triphosphate (ATP + P)
c
Adenosine diphospate has a phosphate group removed (ADP - P)
d
Adenosine triphosphate has a phosphate group removed (ATP - P)
Answer:
The answer would be A.
Explanation:
I don't have an explanation but I have this:
Prompt
Explain how scientific theories differ from scientific laws.
Answer:
Some scientists will tell you that the difference between them is that a law describes what nature does under certain conditions, and will predict what will happen as long as those conditions are met. A theory explains how nature works.
What part of the nervous system is very well protected by bone? (1 point)
A. interneurons
B. sensory neurons
C. peripheral nervous system
D. central nervous system
Will mark brainlest for quick and correct answer
Answer:
The CNS
Explanation:
First, the entire CNS is enclosed in bone. The brain is protected by the skull, while the spinal cord is protected by the vertebra of the spinal column. The brain and spinal cord are both covered with a protective tissue known as meninges.
The nervous system has been the most crucial organ system that acts as the command center. The CNS of the nervous system is very well protected by the bones. Thus, option D is correct.
What is CNS?CNS has been abbreviated for the central nervous system which comprises the spinal cord and the brain. The spinal cord is located at the dorsal surface and the brain is at the anterior location of the body.
The CNS has been enclosed by the skeletal system as the spinal cord is confined inside the vertebral column and the brain inside the skull. They have cerebrospinal fluid that acts as the cushion that protects these structures from shock and injuries.
Therefore, option D. CNS has been the part of the nervous system that is protected by the skeletal system (bones).
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If the Sun heated our atmosphere and the molecules began
spreading apart and rising but our planet's gravity was too
weak to keep them down, what would happen?
the atmospere would drift off into space
none needed
Due to the planet's global warming caused by solar radiation, the atmosphere would float away into space. It also maintains the Earth warm whenever the sun is hidden from view at night.
What does "molecular" mean?The smallest component of a material that possesses both its chemical and physical characteristics. One or even more atoms make up molecules.
What are molecules? What are some examples?A molecule is the smallest unit of the any material that is composed of one or more elements and is capable of existing alone while maintaining all of the substance's physical and chemical properties. Further atom cell divides within molecules. For example, the symbol for the oxygen atom or molecule are O and O2, respectively.
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Which color circle includes the peptide bond? -red -green -none of them -blue
what is a living factor ?
Answer:
A factor of something that all living matter has
Explanation: like we have organs and lungs and a pancreas whiles rocks dont
Monomers and polymers how do they affect the molecules that organisms are made of?
Answer:
The monomers combine with each other using covalent bonds to form larger molecules known as polymers. In doing so, monomers release water molecules as byproducts. This type of reaction is known as dehydration synthesis, which means “to put together while losing water.” ... In the process, a water molecule is formed.
Explanation:
Sorry it's long hope it helps!
You plug in an extension cord and have to be very careful around the electrical outlet. However, you can handle the extension cord without the worry of being shocked by the electrical charge. Which statement best explains why you can do this?
Answer:
The extension cord is made of copper wire, which is a good conductor of electricity; however, it is covered with plastic, an insulator, which does not allow the electrical current to flow to you (C)
Explanation: