Amino acids. These class of compounds are considered the building blocks of most organisms, and around 500 of these are known and indentified. All proteins, carbohydrates, and nucleic acids are polymers ("many units") and each unit is an amino acid.
Answer:
Most large biological molecules are polymers, long chains made up of repeating molecular subunits, or building blocks, called monomers. ... Carbohydrates, nucleic acids, and proteins are often found as long polymers in nature.
explain the importance of ATP at cellular level
How was the grand canyon formed?
Horses and zebras can be bred to produce a zorse, which is sterile. Which is most likely the reason zebras and horses are considered separate species?
What would happen to the circulatory system if the muscular system stopped working?
The muscular system aids in your ability to move, speak, and breathe.
What is Circulatory system?You would become entirely paralyzed if your muscular systems stopped working, and you would eventually cease breathing, which would result in no oxygen getting to your brain and decreasing blood pressure, which would finally lead to circulatory system failure and your death.
Since the muscular system regulates breathing and the circulatory system relies on oxygen to support the heart and other critical organs.
Blood arteries in the circulatory system move blood away from and toward the heart. Blood leaves the heart through arteries and returns through veins.
Therefore, The muscular system aids in your ability to move, speak, and breathe.
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two ways water travels from land to enter the ocean
Final answer:
Water enters the ocean from land via runoff and groundwater flow, integral parts of the water cycle.
Explanation:
Two ways water travels from land to enter the ocean as part of the water cycle are through runoff and groundwater flow. Runoff occurs when water from precipitation like rain or melting snow flows over the surface of the land and into rivers, lakes, and eventually reaches the ocean. Groundwater flow refers to water that infiltrates the soil, becoming groundwater, which moves through the ground and discharges into the ocean, completing the cycle.
The codes for making proteins are carried from the nucleus to the ribosomes in the cytoplasm by _____________. a. RNA b. mRNA c. tRNA d. rRNA
how are mass and volume alike and what is density?
Is a spider unicellular or multicellular organisms
A field geologist collected data for two nuggets of copper and determined their density. Which two pieces of equipment did the geologist most likely use to determine the density of the copper nuggets?
Answer:
The answer is b
Explanation:
Grasses → mice → cat → coyote As matter and energy move from grasses to coyotes the amount of available energy
a) Always decreases and population size always increases
b) Always increases and population size always decreases
c) Always decreases but population size may increase or decrease
d) Increases or decreases but population size remains the same
Answer:
The most reasonable answer would be c.
Hope I helped:)
Explanation:
Of the three states of matter, molecules are moving the fastest and are the farthest apart in a _____.
A.Solid
B.Liquid
C.Gas
Please answer fast!
Gas granules frequently hit with one another and the container's side as they move fast in all directions. As the temperature rises, the particles accumulate kinetic energy and quicken. Thus, option C is correct.
What are the movement of gas molecules?As the temperature rises, the particles accumulate kinetic energy and quicken. Due to their kinetic energy, the molecules of a gas, liquid, or solid are always in motion.
The collision of molecules occurs because they are constantly moving. The molecules travel in erratic paths as a result of these encounters.
The temperature and the particles' mass both have an impact on the actual average speed of the particles; at a given temperature, heavier particles move more slowly than larger ones.
Therefore, Of the three states of matter, molecules are moving the fastest and are the farthest apart in a Gas.
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A platypus has 26 types of chromosomes. How many total chromosomes would be present in an intestinal cell from a platypus?
if you let all of the liquid evaporate out of the pitcher, would you be able to see the solid particles of the drink mix? Explain
which of these elements is essential to making up all organic molecules?
A. hydrogen
B oxygen
c. carbon
d nitrogen
Answer:
carbon
Explanation:
How are kelp holdfasts similar to proper root systems?
A. anchor parts to stable positions
B. carry water to the body
C. carry nutrients from the body
D. use photosynthesis
Answer: A
Explanation: Unlike roots, holdfasts do not take in nutrients – they simply anchor the seaweed to a solid structure.
what type of molecules diffuse through the cell membrane without using a channel protein ?
The molecules diffuse through the cell membrane without using a channel protein are as follows:
Gases (such as O₂ and CO₂), hydrophobic molecules (such as benzene), and small polar but uncharged molecules (such as H₂O and ethanol) are able to diffuse across the plasma membrane. Other biological molecules, however, are unable to dissolve in the hydrophobic interior of the phospholipid bilayer.Ions such as [tex]Na^+, K^+, Cl^-[/tex] can't get through due to their charge.Molecules such as glucose, sucrose, proteins, and starch cannot diffuse through cell membrane due to their large size.Learn more:
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Which of the following terms describes a solution with a higher concentration of dissolved substances relative to another solution?
hypertonic
hypotonic
isotonic
polytonic
I believe it would be Hypotonic because is a solution in which the water concentration is high and the solute is lower than other solutions
Hypotonic is the term describes a solution that has a lower solute concentration and higher water concentration than another solution Hypertonic describes a solution with a higher solute concentration compared with another solution.
Which one of these is not an example of intercellular communication? Question 5 options:
A message travels between gap junctions.
An electrical signal causes muscle cells to contract together.
A message is distributed across plasma membrane.
A molecule stimulates a target cell via a receptor.
PLEASE HELP!
*Please and Thank You*
It is C. A message is distributed across the plasma membrane.
The correct answer is (C) A message is distributed across plasma membrane.
Intercellular communication means the communication that takes place between two cells, gap junctions, target-receptor. This means the message is transferred between two cells and then carry forward by other cells like a cascade or signal transduction. When a message is transferred across plasma membrane this means that no other cell is involved in it. The message is transferred from one organelle to other within the cell. Inter cellular response is not restricted only upto a single cell.
A scientist conducted one trial of an experiment and got unexpected results. How can the scientist increase confidence in the results?
A by repeating the experiment several times
B by changing the experimental procedure
C by asking other scientists what they think about the results
D by modifying the results so they are close to the expected results
Answer:
A by repeating the experiment several times
Explanation:
One of the main characteristics of the scientific research is the ability of running the experiments with the same circumstances and context several times, in order to be able to confirm the results of the research and by doing this if sometime a scientist gets a result too far away from the expected he can run again the experiment to see if the experiment wasn´t compromised.
Explain the statement “ nutrients do not flow in one direction in the ecosystem, they recycle through the ecosystem “
Nutrients in an ecosystem are constantly recycled and reused through a biogeochemical cycle, involving both living organisms and non-living components.
Explanation:The statement 'nutrients do not flow in one direction in the ecosystem, they recycle through the ecosystem' means that nutrients in an ecosystem are constantly being reused and recycled. They do not flow in a linear direction but instead go through a cycle, being passed from living organisms to non-living matter and back again. This recycling process is known as a biogeochemical cycle, which involves both the living organisms and the non-living components of the ecosystem.
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Which description states a characteristic property of the noble gases?
A.
relatively unstable
B.
highly reactive
C.
colorful and shiny
D.
very stable
I NEED HELP W/ THESE QUESTIONS!!!
The subject of this question is biomolecules. In summary, carbohydrates are quick energy sources and are consumed heavily by athletes, proteins are involved in muscle development and the immune system, nucleic acids contain genetic material, and lipids are key for energy storage, insulation, and making up cell membranes.
This is a categorization task about biomolecules. Let's categorize each statement.
1. C: Carbohydrates are useful for a fast source of energy.
2. P: Proteins play a large role in muscle development.
3. N: A mutation in DNA, which is a nucleic acid, would initially start with it.
4. P: Enzymes, which speed up reactions, are proteins.
5. C: Carbohydrates contain elements C, H, and O and can often have a ring-like structure.
6. P: Proteins are involved in the immune system, such as antibodies.
7. N: The category of nucleic acids includes genetic material.
8. L: Lipids are helpful for long term energy storage.
9. C: If athletes 'pasta load,' they are consuming a lot of carbohydrates.
10. L: Lipids make up cell membranes.
11. L: Lipids are important for insulation.
12. L: Lipids contain long fatty acid chains.
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If Tyler does not eat a diet that includes essential amino acid's hair cells will not be able to build
In a faraway city called Grant City, the main export and production product is the steel widget. Everyone in the town has something to do with steel widget making and the entire town is designed to build and export widgets. The town hall has the instructions for widget making, widgets come in all shapes and sizes and any citizen of Grant can get the instructions and begin making their own widgets. Widgets are generally produced in small shops around the city; these small shops can be built by the carpenters’ union (whose headquarters are in town hall).
After the widget is constructed, they are placed on special carts which can deliver the widget anywhere in the city. In order for a widget to be exported, the carts take the widget to the postal office, where the widgets are packaged and labeled for export. Sometimes widgets don't turn out right, and the "rejects" are sent to the scrap yard where they are broken down for parts or destroyed altogether. The town powers the widget shops and carts from a hydraulic dam that is in the city. The entire city is enclosed by a large wooden fence, only the postal trucks (and citizens with proper passports) are allowed outside the city.
A. Mitochondria
B. Ribosomes
C. Nucleus
D. Endoplasmic Reticulum (ER)
E. Golgi Apparatus
F. Protein
G. Cell Membrane
H. Lysosomes
I. Nucleolus
1. Widget ____
2. Town Hall ____
3. Small Shops ____
4. Carpenters Union ____
5. Special Carts ____
6. Postal Office ____
7. Scrap Yard ____
8. Hydraulic Dam ____
9. Fence ____
Happy Halloween!!
The compound light microscope is most useful for viewing
detailed structures inside of cells
leaves, stems, and molds
surface details of a specimen
tissue samples and cells
Compound Light Microscope is a type of microscope made up of two lenses to obtain a high resolution of specimens. It has an ocular and objective lens and uses light as the source.
The correct answer is:
Option D. tissue samples and cells
The uses of compound microscopes are:
The microscope is used to visualize the specimen at a high resolution of 400 to 1000 X. It is due to the combined effect of two sets of lenses. The compound microscope is used to visualize the cells, scrapes, different types of cells, and microorganisms. Electron microscopes are used to visualize the detailed structure of the specimen, and also provide 3-D images of surface details of the specimen.
Thus, the correct answer is Option D.
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A compound light microscope is most effective at viewing intricate internal structures of cells and tissue samples. By magnifying the specimen's image, elements such as the cell nucleus, mitochondria, and ribosomes can be seen. It can also be used for histology but is not suitable for larger or surface structures.
Explanation:A compound light microscope is most useful for viewing detailed structures inside cells and tissue samples. It uses a system of lenses to magnify the image of a specimen, enabling us to observe small and intricate internal cellular elements like the nucleus, mitochondria, and ribosomes. However it also has broader applications in histology, the study of tissue structure. Using staining techniques, tissue samples can be thoroughly examined under this type of microscope. It is not as ideal for observing surface structures or larger objects like leaves, stems, and molds as they might be too large to view under this microscope.
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Some plants release toxic chemicals that kill or harm nearby plants. What type of example is this?
A. cooperation
B. mutualism
C. competition
D. parasitism
Answer: C. competition
Explanation:
Competition can be define as the ecological relationship in which one species is more superior over the other in deriving resources. In competition usually one species live and the population of other species may either decrease in abundance, or may extinct.
The release of toxic chemicals by the plants to harm nearby plants is an example of competition. This is because of the fact that the plants may face competition with other plants for resources such as sunlight, water and minerals. Therefore, a physiological response will be generated inside the plants so as to kill the neighboring plants.
Which one of these is not an example of intercellular communication?
A Bacteria share information about nutrients
B Ribosomes make protein
C Endocrine cells send hormones into blood
D Hypothalamus signals pituitary gland
Where in this area would a lake or marsh most likely form? A. A B. B C. C D. D
Answer:
Option (B)
Explanation:
Lakes and marshes are generally formed in the areas where the elevation is less. They are the region where the water bodies remain stagnant i.e. no flowing of water takes place. These are not a part of the huge oceans and are usually surrounded by land on all the sides. They can be comprised of salt water or fresh water and are comparatively larger than ponds in terms of size.
Thus, the point B is the most favorable location for the formation of lakes and mashes as it is located near the mean sea level.
Hence, the correct answer is option (B).
how have scientists determined the earth's core is composed of iron and nickel?
Final answer:
Earth's core is predominantly iron and nickel, inferred from seismic data, its density compared to the Earth's overall density, and its composition mirroring that of metallic meteorites. The solid inner and molten outer core composition, along with the generation of the Earth's magnetic field, supports a dense, metal-rich core.
Explanation:
Scientists have determined the Earth's core composition through various methods that overlap in the fields of seismology, geochemistry, and astrophysics. Seismic waves, created by earthquakes, have different speeds when they travel through solid and liquid matter, allowing scientists to characterize the inner and outer core. Observations show that the inner core is solid, primarily composed of iron and nickel, while the outer core is liquid, believed to be mostly molten iron potentially mixed with lighter elements such as sulfur and oxygen.
Another critical piece of evidence comes from the overall density of the Earth, as established by its gravitational effects and rotation, which suggests a denser metallic core when compared to the less dense surface layers. Additionally, the similarity in composition to metallic meteorites rich in iron and nickel supports the theory that these heavy elements sank to form the Earth's core during its early formation when the planet was still molten, and density stratification could occur.
Furthermore, the Earth's magnetic field, generated by the motion of electrically conductive material in the outer core, implies the presence of a metallic, iron-rich fluid. Laboratory experiments under conditions replicating the core's environment suggest iron alloys are conductive and match the observed density, thereby confirming a metal-based core and its role in geomagnetic phenomena.
What stage of cellular respiration does not involve any carbon-based compounds as a reactant or product? Electron transport chain Krebs cycle Glycolysis Fermentation
Answer:
Option A , Electron transport chain
Explanation:
In Electron transport chain(ETC), no carbon based reactant or product are involved.
Usually in ETC (taking place in the inner membrane of the mitochondria), NADH and FADH2 releases high-energy electrons. Some energy of these electrons is capture while passing through the chain. This stored energy is then used for pumping hydrogen ions into the intermembrane space from the matrix.
Since in this entire process no carbon element is involved and hence, option A is correct