A jet flies over the ocean. A sound wave travels from the jet to the surface of the ocean. Almost none of the energy from the sound passes into the water. The diagram below illustrates the path of the sound wave.
Which of the following statements about this scenario is true?
A.
The sound wave's direction, speed, and wavelength change.
B.
The sound wave's direction and wavelength change, but its speed remains the same.
C.
The sound wave's direction changes, but its speed and wavelength remain the same.
D.
The sound wave's direction and speed change, but its wavelength remains the same.
Answer:
D
Explanation:
Hope I’m right...
Help due tomorrow what is it please help?
Answer:
Whether or not it affects the composition of rocks.
Explanation:
They both composite rocks differently;
For example, mechanical weathering breaks rocks into smaller pieces without changing their composition, whereas chemical weathering breaks down rocks by forming new minerals that are stable at the Earth's surface.
i do hope that this helps!
O C. mitochondria 2. Where is the major site of photosynthesis in a plant? * O A. the stem O B. the roots O C. the leaves
Answer:
Option C
Explanation:
The answer to this question is option C or "the leaves." The major site of photosynthesis in a plant is where the chloroplasts are located because it contains chlorophyll which is where photosynthesis takes place, chloroplasts is in all the green parts of a plant stem, leaves, and even the branches but it takes place mainly in the leaves of a plant because there is more leaves then roots or branches.
Hope this helps.
Grade Science
V1.29.31
Red blood cells need iron. They store iron and typically contain more iron than the fluid around them does. Which
action would show the blood cells doing active transport?
O pushing iron out
O bringing iron in
O swelling
O shrinking
Answer:
pushing iron out
Explanation:
Excess iron will be push out of the cell to regulate the internal environment of cell, this active transport involve osmosis.
if this type of reaction occur in a plant cell, the plant cell will shrink which may/will leads to death of the plant.
Hope it is helpful
don't mind my grammatical blunders.
Thank you.
A skin cell divides to make a new skin cell. Which component of cell theory does this best illustrate?
All living things are made of cells.
Cells are the basic unit of structure and function of all living things.
All cells come from other cells.
Cells are generated from nonliving materials.
Answer:
its C
Explanation:
all cells come from other cells
Which biomolecule provides the instructions to build enzymes?
A. Carbohydrates
B. Lipids
C. Nucleic acids
D. Proteins
Proteins are the building blocks of enzymes, and proteins are made up of amino acids that are linked together in one or more polypeptide chains. Therefore, option (D) is correct.
What are enzymes?Enzymes are proteins that aid in the acceleration of metabolic processes, also known as the chemical reactions that take place in our bodies. They are responsible for the creation of some chemicals while also decomposing others. Enzymes are present in everything that is alive. Enzymes are something that are produced by our bodies spontaneously.
Enzymes regulate most biochemical reactions in animals, plants, and microbes, thus there are many examples. Animal digestive enzymes are well-known. Gastric juices break down food with the enzyme pepsin. Salivary amylase turns starch into sugar, starting digestion.
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write ten ways by which water bodies are polluted
Answer:
A few ways could be
-toxic waste
-trash and plastic
-sewage
-indirect contamination
-bacteria and parasites
-mining
-burning fossil fuels
-direct marine dumping
-oil leak
-chemical pesticides
Explanation:
These are the 10 I found and came up with but there are many detrimental ways that we directly and indirectly effect the pollution of water.
What Intermediary Products are produced in the Kreb Cycle that “feed “ the E.T.C.?
Answer: These products from the citric acid cycle are made in the mitochondria of your cells.. During oxidative phosphorylation, NADH and FADH 2start subscript, 2, end subscript are transported to the electron transport chain, where their high energy electrons will ultimately drive synthesis of ATP.
please help me
thank you
What its saying is:
for the chain chart: list a dangerous weather phenomonon you experienced and list words that specify the weather condition you experienced. For example:
you experienced: hurricane Catrina
Details: Had wrecked my house, was very scared then, other people were scared aswell, etc.
( Note that these details come in handy later for the next part.)
The next part wants you to organize the parts of the story kevin made about his hurricane. as a cheat key, its: 2, 1, 3, 4.
Drafting: Its asking you to make a sentence that describes how you felt during that time. You have to use the I before anything else in order to count for the grade if there is any grade given for this lesson.
The next part just wants you to write a story on teh event that you experienced, in this case the hurricane or other weather condition you have brought up.
Revising and proofreading:
were > was
think > thought
was > we
ever > remove this word
The last part just wants you to check off everything, like a grocery list.
Hope this helped!
Which part of photosynthesis is represented by the diagram to the right
Answer:
Light-dependent reactions
Explanation:
Photosynthesis occurs in two stages: light-dependent reactions and light independent-reactions. This last stage is often called Calvin cycle.
The diagram shows reactions occurred in the thylakoid membranes which are located inside the chloroplasts. Therefore, we can identify that these reactions are the light-dependent reactions. During this part of photosynthesis, the energy from the sunlight is absorbed by a pigment called chlorophyl (Chl). Then, it is sequentially coverted into chemical energy stored in the form of molecules: NADPH (nitotinamide adenine dinucleotide phosphate) and ATP (adenosine triphosphate).
Nucleotides in a row on mRNA determine a specific amino acid in the polypeptide
Answer:
This statement is true. Nucleotides in the mRNA strand determine a specific amino acid, and its position, in the polypeptide.
Explanation:
Messenger RNA (mRNA) contains the information it has received from the DNA transcription, arranged in a nucleotide sequence, necessary to perform protein synthesis.
The sequence of nitrogenous bases in the mRNA can be distributed in trios of bases, called triplets or codons. Each of the codons encodes an amino acid, the beginning of the synthesis of a polypeptide or the completion of such synthesis. The order in which the nucleotides are found also determines the order or sequence of amino acids in a polypeptide.
Electrical energy is:
the energy form originated by electromagnetic waves or fields
the energy type due to the movement of electrons
the energy form which is present in vibrations of air
Answer:
The energy form originated by electromagnetic waves or fields.
Meiosis is necessary for_____
reproduction.
A. Somatic
B. Zygote
C. Asexual
D. Sexual
Answer: D
Explanation: Meiosis is necessary for sexual reproduction because haploid cells which fuse during sexual reproduction to form a diploid zygote results from meiotic cell division.
The process of genetic engineering may include either four or five steps. The diagram represents the five-step process.
Which best describes step 2?
A) Restriction enzymes cut the DNA into fragments; the fragments join with the host DNA to create recombinant DNA.
B) Recombinant DNA is inserted into a biological vector; the vector houses the recombinant DNA and can produce copies of DNA for itself and the recombinant DNA.
C) Cloning of the recombinant DNA occurs; the DNA is cloned in the biological vector to create more DNA for use in the host.
D) Recombinant DNA is inserted into a mechanical vector; the mechanical vector allows the DNA to be inserted into the DNA clone for use in the host.
Answer: Correct answer is B) Recombinant DNA is inserted into a biological vector; the vector houses the recombinant DNA and can produce copies of DNA for itself and the recombinant DNA.
Explanation: got it right on edge 2021
Answer:
B on 3dge
Explanation:
Recombinant DNA is inserted into a biological vector; the vector houses the recombinant DNA and can produce copies of DNA for itself and the recombinant DNA.
hellppppp please will give brainliest
Answer: biodiversity
Explanation: it makes sense as the best answer from all the choices, could be wrong tho lol
water makes up what percentage of our body weight?
Answer:
Water represents between half and two thirds of a person's average weight. Adipose tissue has a lower percentage of water than lean tissue, and women tend to have more fat, which is why the percentage of water in women is lower (52% to 55%) in relation to the average body weight of a male (60%).
Explanation:
Answer:
60% of the body is made up of water
Explanation:
What cell parts are common to What cell parts are found only in plant cells? What are found only in animal cells?
all of these cells?
Answer:
The organelles found only in plant cells include- chloroplast, cell wall, plastids, and a large central vacuole. The chloroplasts contain a green pigment chlorophyll that is responsible for the process of photosynthesis. What is the composition of a plant cell wall? The cell wall of a plant is made up of cellulose
Animal cells are eukaryotic cells or cells with a membrane-bound nucleus. Unlike prokaryotic cells, DNA in animal cells is housed within the nucleus. In addition to having a nucleus, animal cells also contain other membrane-bound organelles, or tiny cellular structures, that carry out specific functions necessary for normal cellular operation
Answer: the plant cell has a cell wall, chloroplasts, plastids, and central vacuole structures not found in animal cells. Plant cells do not have lysosomes or centrosomes.
Scientists study salamanders and their ability to regenerate lost legs and tails. What additional information is essential for scientists to understand in order to apply this ability to humans who have lost limbs?
how quickly the body parts regenerate
how similar salamanders are to humans
which body parts are most often lost
which genes control regeneration
Answer:
The answer could be:
(/) which genes control regeneration
(/) how similar salamanders are to humans
(x) how quickly the body parts regenerate (salamanders' size and form does not equate to human beings)
(x) which body parts are most often lost (it was already given that it's legs and limbs)
Answer:
d
Explanation:
Cause i am the smartest
this is the question
Answer:
the green part will be blue-black
Explanation:
which represent the presence of starch and the none green part do not change to blue-black hope this help friend
Which fossil fuel is made when plants from swamps are covered, pressed and heated for millions of
years?
A Coal
B Petroleum
C Natural Gas
D Nuclear
Answer:
petroleum i think , i may b wrong
Answer: A Coal
Explanation:
We use blank as the matrix through which DNA will travel. In order to physically see the samples that we put in the gel, we first have to add blank to each sample. When we have the samples loaded, we want to make sure we also add what's called a blank which acts as the standard curve in a tube; it's made up of DNA fragments of known sizes. Before running the gel, it's important to make sure that there is blank covering the gel in the gel rig. This will make sure that the electrical current runs through the gel and the gel stays cool
Answer:
This question is asking to fill in the blank spaces with the correct terms. The correct terms to the four blank spaces are:
1) GEL
2) DYE
3) DNA MARKER
4) LID
Explanation:
This question is describing the Gel electrophoresis technique which is used to separate DNA fragments using electric current. The DNA fragments of different sizes migrate through a GEL which serves as the matrix made from Agarose.
In order to physically see the samples that we put in the gel, we first have to add DYE to each sample of DNA. After loading the samples to be separated, a substance made up of DNA fragments of known sizes referred to as DNA MARKER, which acts as the standard curve in a tube is used.
Before running the gel, it's important to make sure that there is LID covering the gel in the gel rig. This will make sure that the electrical current runs through the gel and the gel stays cool.
What would best describe the structure of the plasma membrane?
1.rigid (not flexible)
2.gaseous
3.solid
4.fluid (flexible)
Answer:
4. Fluid (Flexible)
Explanation:
Plasma membranes must be very flexible in order to allow certain cells, such as red blood cells and white blood cells, to change shape as they pass through narrow capillaries. The primary function of the plasma membrane is to protect the cell from its surroundings. Composed of a phospholipid bilayer with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells.
Which compound is a reactant in cellular respiration?
oxygen
carbon dioxide
water
ATP
Answer:
Oxygen
Explanation:
........... ......
Oxygen and glucose are the reactant in process of cellular respiration. ATP is the primary product of cellular respiration, and carbon dioxide and water are waste products. Thus, option A is correct.
What is the importance of cellular respiration?During the process of photosynthesis, which creates glucose from water and carbon dioxide, solar energy is transformed into chemical energy. The byproduct is the emission of oxygen.
In the process of breaking down glucose during cellular respiration, oxygen is consumed, which also produces heat and chemical energy.
The terminal electron acceptor in cellular metabolism is oxygen. H2O is produced when oxygen takes hydrogen ions and electrons.
After passing via ATP synthase, hydrogen ions from the intermembrane space move from the mitochondrial matrix to produce ATP.
Therefore, oxygen molecule is a reactant in cellular respiration.
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A researcher is investigating the of effects a chemical that makes thylakoid membranes permeable to hydrogen ions (H+). Which of the following is most likely direct effectof adding the chemical to plant cells?
Answer:
B. The chloroplasts will generate less ATP
Explanation:
Photosynthesis, occurs in the chloroplasts of plants. Solar energy is converted into chemical energy in the form of stable carbohydrates.
6 CO2 + 6 H2O + light → C6H12O6 + 6 O2
Carbon Dioxide + Water + Light Glucose + Oxygen
Chloroplasts, are small membrane-bound organelles of multi-folded membranes containing pigments, enzymes, and other molecules that facilitate the process. The thylakoid contains multiple folded membranes called granum stacked together. They contain light-absorbing pigments like chlorophyll.
Here, absorbed light is used in photolysis, to split water produce H+, O2 and high-energy electrons for the high-energy producing electron transport chain.
Protons are pumped into the stroma within granum, producing ATP. ∴ Without ATPase, less ATP is produced.
Chloroplasts are the membrane-bound organelles, which carry out the process of photosynthesis. The correct answer is:
Option B. The chloroplasts will generate less ATP.
Photosynthesis is the process of preparing the food in presence of sunlight. It occurs in the plant. The chloroplasts are the membrane-bound organelles, which consists of pigments, enzymes, and other molecules. The thylakoid membrane consist of stacked membranes, known as grana. The light-absorbing pigment, chlorophyll is found in grana.
The following points can be used to explain photosynthesis:
The absorbed light initiates photolysis, which is the breakdown of water molecule into hydrogen and oxygen. During photolysis, high-energy electrons are also released. These electrons are utilised in the electron transport chain to provide energy.Therefore, the permeability of the protons into the granum will yield ATP. The less ATP will be produced without ATPase.
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4. Compare and contrast the role of plants in the carbon and nitrogen cycles.
Answer: There are many important processes in the carbon cycle that primarily relate to ... CO2 is absorbed by various plants and vegetation and converted into carbohydrates via photosynthesis. ... The nitrogen cycle takes place in Earth's various "spheres" ... What is the difference between Carbon 12, 13, and 14?
1 answer
Explanation:
Nitrogen cycle
This is the combination of the biological, chemical and geological aspects of the elements in the nitrogen cycle. The main component of this cycle is Nitrogen and has a relationship between the different habitats in the ecosystems.
Carbon cycle
This cycle is a biogeochemical one that interchanges carbon with other elements in the atmosphere, biosphere, etc of the Earth. here, plants and animals share resources and have a relationship that helps both of them to function well.
The roles of plants in carbon cycle
Plants perform the functions of:
Absorbing the sunlight through photosynthesis to produce their foodKeeping the air clean from harmful substancesTurning to fossil fuel, etcThe roles of plants in nitrogen cycle
Plants perform the functions of:
Absorbing nitrates in order to make proteinThey serve as food to animalsThey increase the value of the soil b acting as fertilizers,etcRead more here:
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If a culture in the lab starts with one human cell, how many cells will there be after 24 hours?
Answer:
2 cells
Explanation:
I had a similar question, the cell cycle takes 24 hours to create 2 daughter cells, so 2
If the culture in the lab starts with one human cell there will be a cell after 24 hours - 2 cells.
Cell divisionIt is the process by which a cell divides to form to nearly equal daughter cell which resembles the parent. The cell cycle is the sequence of events that occur during cell growth and cell division.
It is completed into two steps interphase and M-phase. The total time s around 24 hours to complete one cell to divide in two.
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During _____ in plant cells, a cell plate forms
separating the parent cell into two daughter cells.
Answer:cytokinesis
Explanation:
can someone help me do this please
Answer:
1. False, That person should go to jail instead because the crime is not that bad
2. False, there should not be another trial unless the police have some evidence for it or if the person being trialed has confessed to whatever crime
3. False, the person needs to know what they did in order to learn their lesson.
Answer:
Situation 1: FALSESituation 2: FALSESituation 3: FALSEExplanation:
SITUATION: 1 The death penalty is only used in extreme cases. Depends in each state but a petty theft is never treated with that level of justice. If a person were to commit domestic terrorism or murder several people, kidnapping in WORST conditions, and the judge believes that it is better for the defendant to never go back to society, then execution is permitted.
SITUATION 2: A person who is tried for a crime they did not commit and found not guilty, will be set free. If the police try that same person again for the same reason, they will need proper evidence to try that individual. If found not guilty again, the person can take legal actions for invalid reasons of persecution and the police will be charged instead of the individual being wrongfully charged.
SITUATION 3: It is the law to be told why you are arrested. Even with a warrant with your name on it, you are fully allowed to read the warrant to verify if you are the correct suspect.
how is atmospheric carbon in the form of CO2 converted into a molecule that is usable to all organisms?
Answer:
The carbon-dioxide exists in the atmosphere, and it is dissolved in the water.
Explanation:
With the process of photosynthesis, it becomes organic, and by breathing, the organic gas goes back to carbon-dioxide.
The assimilation of carbon is the process when the carbon-dioxide converts to organic carbon with the help of living organisms. This organic carbon is then used for energy.
1. What is vascular tissue?