Which of the following activities is most likely to result in nutrient pollution?
a. cutting down trees
b. pouring motor oil down the drain
c. excess fertilizer use
d. none of the above
Answer:
a or c
Explanation:
Most likely c
Good luck!
Answer:
C. excess fertilizer use
Explanation:
How do stars produce energy through nuclear fusion
Answer: Stars produce energy from nuclear reactions, primarily the fusion of hydrogen to form helium. These and other processes in stars have lead to the formation of all the other elements.
The table below shows the number of the sub-atomic particles in an atom of nitrogen.
Sub-atomic Particles
Sub-atomic Particle Number
Protons 7
Neutrons 7
Electrons 7
What is the amu of a nitrogen atom?
!PLZ I WILL REWARD BRAINLIEST!
Answer:
14amu
Explanation:
Given subatomic particles:
Number of protons = 7
Number of Neutrons = 7
Number of electrons = 7
Unknown:
Atomic mass unit; amu of nitrogen
Solution:
The atomic mass unit of a substance is the number of protons and neutrons in such an atom;
Atomic mass unit = number of protons + number of neutrons
This is because the mass of an atom is concentrated in the nucleus;
For the given specie;
Atomic mass unit = 7 + 7 = 14amu
i need this answer now pls help
Answer:
the answer is not h20 for it is not made
the answer is b im really really sure cuz
Which statement best describes the Earth’s energy budget?
The temperature increases when energy in is greater than energy out, and temperature decreases when energy out is greater than energy in.
The temperature decreases when energy in is greater than energy out, and temperature increases when energy out is greater than energy in.
Energy in never equals energy out.
Energy in and energy out are unrelated.
Answer:
Earth's energy budget accounts for the balance between the energy that Earth receives from the Sun, and the energy the Earth radiates back into outer space after having been distributed throughout the five components of Earth's climate system. This system is made up of Earth's water, ice, atmosphere, rocky crust, and all living things. Read It And Get your answer
Explanation:
Answer:
Its either A or B Sorry if im wrong
Explanation:
Have a good day!
Which statement best describes a direct result of damage to a phospholipid bilayer?
The balance of ions inside a cell will be disrupted and proteins could leak out because the phospholipid bilayer forms the cell membrane.
Energy storage will be disrupted because the phospholipid bilayer is responsible for storing energy in the body.
Chemical messages could not be sent to different parts of the body because the phospholipid bilayer forms hormones.
A person would be vulnerable to disease because the phospholipid bilayer helps to fight infections in the body.
Answer: A: The balance of ions inside a cell will be disrupted and proteins could leak out because the phospholipid bilayer forms the cell membrane.
Explanation:
Answer:
A. The balance of ions inside a cell will be disrupted and proteins could leak out because the phospholipid bilayer forms the cell membrane.
what are the components of photosystem 1
Answer:
Photosystem I of Synechococcus elongatus consists of 12 protein subunits, 96 chlorophyll a molecules, 22 carotenoids, three [4Fe4S] clusters and two phylloquinones. Furthermore, it has been discovered that four lipids are intrinsic components of photosystem I
Can you help me with this question, and have a good day.
Answer:
Phenotype
Explanation:
A Phenotype refers to the observable physical properties of an organism. Hope this helps
DOODS IF YOU KNOW ABOUT BIOLOGY HERE ARE 2 QUESTIONS...YOU GET 10 POINTS IF YOU ANSWER BOTH AND BRAINLY!!
Answer:
mRNA
Explanation:
.......
explain how we can get energy out of ATP. What has to happen for us to get energy out of ATP?
Answer:yes
Explanation:
Predict which temperature 20 degrees Celsius, 39 degree Celsius, 50 degree Celsius you would expect a human to function best. Plan a simple investigation to test your hypothesis
Answer:
39 degree Celsius
Explanation:
Human body functions well at 36 degree Celsius. All the body functions and the enzymes secretion and processes works best on the temperature 36 degree Celsius.
The enzyme of humans will function good on temperature 39 as it is the very near to the body temperature of the human. The optimal temperature would be between temperature 35 to 40 degrees for most of the enzymes.
Testing hypothesis :
Add amylase which is an enzyme present in the saliva to a concentration sugar, which acts as the reactant in a small container having a lid. Use a thermometer to mark the changes in the temperature. We have to take two identical samples of our experiment. Place one sample at a room temperature of 25 degree Celsius and the other to be heated to 40 degree Celsius. Now we have to check the concentration of the product for each temperature. And while checking the sample which is heated, we see that at some point, the rate where the substrate is being converted in to product decreases as the enzyme denaturation and the reaction will stop. The optimal temperature is the one where the product is produced at the maximum rate.
Electron transport in mitochondria results in a chemiosmotic gradient of which particle across the mitochondrial membrane?
1. ADP
2. ATP
3. Protons
4.neutrons
Answer:
ATP
Explanation:
"The electron transport chain forms a proton gradient across the inner mitochondrial membrane, which drives the synthesis of ATP via chemiosmosis."
-Khan Acadmey
Which two stars are most similar in luminosity?
Answer:
Procyon B and Proxima Centauri
Explanation:
Procyon B and Proxima Centauri are most similar in luminosity but Alpha Centauri and the Sun have most similar luminosity and temperature.
The primary star in the system, Procyon A, is a bright yellow-white star and one of the brightest stars in the night sky. The two stars that are most similar in luminosity are Procyon B and Proxima Centauri.
Procyon B is a white dwarf star that is part of the Procyon binary star system, located approximately 11.4 light-years away from Earth in the constellation Canis Minor.
Proxima Centauri is a red dwarf star and the closest known star to our solar system, located approximately 4.24 light-years away in the southern constellation of Centaurus. It is a part of the Alpha Centauri star system, which also includes the binary pair of stars, Alpha Centauri A and Alpha Centauri B.
To compare the luminosity of stars, astronomers often use a classification system called the Hertzsprung-Russell (H-R) diagram. This diagram plots stars based on their luminosity and temperature. Stars of similar luminosity can be found within the same region of the H-R diagram.
Therefore, the two stars that are most similar in luminosity are Procyon B and Proxima Centauri.
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what travels through the nucear pores?
Answer:
molecules
Explanation:
Nuclear pore complexes allow the transport of molecules across the nuclear envelope.
Answer:
Molecules
Have a good day!
What chemical digestion occurs in the stomach? PLZZZZZ HELP MEEE with BIOLOGY!!!!
Answer:
Explanation:
Protein digestion occurs in the stomach and the duodenum through the action of three main enzymes: pepsin, secreted by the stomach, and trypsin and chymotrypsin, secreted by the pancreas. During carbohydrate digestion the bonds between glucose molecules are broken by salivary and pancreatic amylase.
The pedigree below traces the inheritance of alkaptonuria, a biochemical disorder. Affected individuals, indicated here by the colored circles and squares, are unable to metabolize a substance called alkapton, which colors the urine and stains body tissues.
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which chemical equation is balanced …
PLEASE HELP ILL MARK U BRAINLIEST - THANKYOU
D is correct answer as shown in the picture .
Write a food chain from this food web with six tropic levels
Answer:
tiny water plants water fleas diving beetles small fish perch and heron
Explanation:
Gene, DNA, cell Cell Membrane, Cell Wall, Chromosomes, and Nucleus in order from small to large
Answer:
DNA, Gene, Chromosome, Nucleus , Cell membrane, cell wall , cell
Explain life cycle of bryophytes with example?
Please mark as Brainliest .......
Explanation:
Yes it is your answer I think it will help you
What is The Cell Theory?
Answer:
cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells.
Answer:
all living things are made of one or more cells. cells are the basic unit of life; and new cells arise from existing cells. it goes on and on
Explanation:
Which best defines a diploid cell during meiosis?
two diploid cells after the first meiosis. To provide clear explanation, in contrast haploid cells only contain 23 chromosomes and are created after meiosis II which is 4 in number.
Answer:
a cell that has double the number of chromosomes as the daughter cell
Explanation:
please help Which diagram illustrates metaphase? A B C D
C diagram best illustrates metaphase.
What is mitosis and its stages?Prophase, metaphase, anaphase, and telophase are the four stages of mitosis.
1) Prophase: chromatin forms chromosomes, the nuclear envelope breaks down, and chromosomal centromeres bind to spindle fibers.
2) Metaphase: the chromosomes align on the metaphase plate (center of the cell)
3) Anaphase: sister chromatids are drawn to opposing poles of the cell;
4) Telophase: nuclear envelope recovers, chromosomes unroll into chromatin, and cytokinesis can begin.
hence A shows anaphase, B shows prophase and D shows telophase and cytokinesis
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Read the sentences.
I always spill on myself when cooking dinner. However, professional chefs themselves tend to maintain clean aprons and work areas when they cook.
Which choice correctly identifies two pronouns from the sentences?
I (reflexive), they (intensive)
I (intensive), they (reflexive)
myself (reflexive), themselves (intensive)
myself (intensive), themselves (reflexive)
Answer:
myself (reflexive), themselves (intensive)
Explanation:
"Reflexive Pronouns" refer to pronouns that are used when the subject and the object in the sentence are the same. The reflexive pronoun above is "myself." This pronoun functions as an object, but also refers to the subject "I."
"Intensive Pronouns" refer to pronouns that emphasize the noun that was already mentioned. In the example above, the intensive pronoun is "themselves" because it emphasizes the "professional chefs," which was mentioned beforehand.
It is easy to spot the reflexive and intensive pronouns because they end in "self" or "selves."
Examples: myself, yourself, himself, herself, itself, ourselves, yourselves, themselves.
Answer: myself (reflexive), themselves (intensive)
Explanation: I took the test I'm on k12 right now!
Jade described one of the components of weather as follows:
It drops as you go higher.
It is usually higher on summer days.
Its low and high are usually shown on weather map.
Which weather component is Jade describing?
Air temperature
Humidity
Precipitation
Wind speed
Answer:
Air temperature
Explanation:
Air temperature is being described by Jade according the properties highlighted.
The degree of hotness or coldness of a body is known as its temperature.
As you go higher it becomes cooler. The surface causes the warming of the air around. With height, the surface is distant from the body of air. On summer days, air temperature is higher due to more insolation. Weather maps gives a good description of air temperature from places to places.[tex]\mathrm {Hey, there!}[/tex]
Your answer is: air temperature
Air temperature drops as you go higher above.Air temperature is Higher on sunny days.Air temperature's low and high are usually shown on weather map.The answer is air temperature.
Which organelle packages proteins into vesicles? *
A chloroplasts
B nucleus
C ribosomes
D Golgi apparatus
Which organell
Answer:
The Golgi Apparatus
What is the absolute brightness of a white star?
Answer: 10 parsecs from earth
Explanation:
The two amino acids animated above are joined together by a
molecule of
in the process.
and form a
DONE
Intro
Answer:Peptide Bond and Water
Explanation:
The two amino acids animated above are joined together by a peptide bonds.
What do you mean by peptide bond?Along a peptide or protein chain, a peptide bond is an amide-type covalent chemical bond that connects two consecutive alpha-amino acids from C1 of one alpha-amino acid to N2 of another.
A covalent bond between two amino acids is known as a peptide bond. Peptide bonds are used by living things to make long chains of amino acids called proteins. Proteins play a variety of roles, including providing structural support, catalyzing crucial reactions.
When the carboxyl group of one molecule reacts with the amino group of the other molecule, a molecule of water H20 is released, forming a peptide bond between the two molecules.
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What characteristic defines this organism as eukaryotic
a.
ability to move
c.
ability to repond
b.
presence of a nucleus
d.
irregular shape and size
Answer:
b
Explanation:
its an organism consisting of cells in the form of chromosomes with a distinct nucleus.
Plants are different from animals because
Answer:
Plants and animals share many characteristics, but they are different in some respects. Animals usually move around and find their own food, while plants are usually immobile and create their food via photosynthesis. ... Animal cells absorb nutrients from food, while plant cells use plastids to create energy from sunlight.
Explanation: