Answer:
Redi proved spontaneous generation theory by showing that maggots come from meat, not from other flies.
Explanation:
As rightly stated in the options of this question, the theory of Spontaneous generation is a theory that life forms can be generated from non-living or inanimate objects. Several scientists including Needham, Redi, Pasteur contributed to this theory experimentally by either proving or disproving it. Their contribution are as follows:
- John Needham boiled a broth containing living matter but noticed cloudy appearance representing microbial growth. Hence, when microbes grew in Needham's flask of broth, he proposed it was an example of spontaneous generation occurring in microorganisms.
- Francesco Redi, on the contrary, disproved the theory by conducting an experiment using meat. Redi DISPROVED the theory by concluding that flies were responsible for appearance of maggots on the meat. Hence, the statement that "Redi proved spontaneous generation theory by showing that maggots come from meat, not from other flies" is FALSE.
- Loius Pasteur also disproved the theory of spontaneous generation by using swan-necked flasks. His swan-neck flask experiment demonstrated that spontaneous generation does not occur
Answer:yo
Explanation:
help bruhhh idkk mannn help
Answer:
Circumstellar Habitable zone (CHZ)
Explanation:
im sorry if it didnt help
The habitable zone, also known as the Circumstellar Habitable Zone (CHZ).
What’s the answer ????????
Answer:
D: Electrons are transferred from one atom to another.
Explanation:
Protons are not involved in the covalency, and C, electrons are shared between two atoms, is the definition of a covalent bond, such as water. Ionic bonds form when two atoms, share (transfer) electrons to one another in order to fill the outer electron ring.
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4. Root cells of plants take in some minerals from the surrounding soil by spending
energy. After the plant obtains enough minerals to maintain health, the plant will
continue to absorb minerals from the soil. Which reason best explains why root cells
need to spend energy in order to transport some minerals into cells?
Answer:
i know its 3
Explanation:
yes buddy
After the plant obtains enough minerals to maintain health, the plant will continue to absorb minerals from the soil.
This is because Mineral concentration is higher in root cells than in the surrounding soil. Thus option D is correct.
What are the effects of minerals do plants growth ?
For a better growth plants need minerals, can be absorbed through the roots by active transport in the form of mineral ions.
Minerals have a major role in electron transport, enzyme activation, development, maintenance of structural components etc.
The two most essential minerals are magnesium ions and nitrate ions needed for proper growth of plants.
Beside this various fertilizer are used like Nitrogen fertilizers which increase the growth as well as high yield of the crops.
Excess use of mineral cause mineral toxicity, for example eutrophication happens when excess nitrate enters into aquatic system causes the death of aquatic animals.
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How might the lack of water affect life process at the cellular level and how would this affect an organism?
Answer:
Water creates pressure inside the cell that helps it maintain shape. ... Without water, cell membranes would lack structure, and without proper membrane structure, cells would be unable to keep important molecules inside the cell and harmful molecules outside the cell..
This central organelle in plant cells helps to keep the plant cell turgid:
Answer:
The central vacuole
Answer:
The large central vacuole.
Explanation:
can someone please help me convince my biological mother to let me on testosterone....ive been out for 4 years and am 17 and she still wont allow it.....
Answer:Try explaining to her why you want or need them,try explaining what’s going on in your brain and what your feeling.
i have a best friend who does and he has become way happier since he’s out!!
When an organism consumes other organisms for food they are?
Answer:
Consumer
Explanation:
Producer An organism that can make its own food
Consumer An organism that obtains energy by feeding on other organisms
herbivores consumers that eat only plants
carnivores consumers that eat only animals
The apicoplast is a potential target for the development of antimalarial drugs. If it is important for the creation of precursors for all classes of biomolecules, explain what you would expect to find within it.
Answer:
Answer is b
Explanation:
I took the test
What are machines fueled by?
1. Energy
2. Electricity only
3. gasoline only
4. Sun
Machines are fueled by energy and which kind of energy is used does not matter, hence option 1 is correct.
What are machines?A machine is a physical system that uses power to exert forces, regulate movement, and carry out an activity, and energy is provided by any source which lead machine to work.
The phrase is frequently used to refer to both manmade devices that use engines or motors as well as natural biological macromolecules like molecular machines.
They may also include mechanical systems, sometimes known as computers and sensors that track activity and coordinate movement.
Therefore using manpower or other energy source machines are fueled by energy, hence option 1 is correct.
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7. PLEASE HELP ALSO A LOT OF POINTS
Answer:
what is the ?
Explanation:
I need the brainliest lol
Because the bodies of animals contain carbon molecules, the animal kingdom stores huge amounts of carbon. Which of the following processes returns carbon from this vast reservoir to the active carbon cycle?
Answer:
burning fossil fuels and decomposition of dead organisms
Explanation:
A significant amount of the carbon in the biosphere is returned to the carbon cycle through decomposition by fungi and bacteria. Much of what is not decomposed becomes fossil fuels. When humans burn fossil fuels for energy, carbon is returned to the atmosphere.
The process that returns carbon from the vast reservoir of animal bodies to the active carbon cycle is called decomposition, which is present in Option A, as when an animal dies, its body is broken down by decomposers, such as bacteria and fungi.
What is decomposition?The decomposition process is essential for the cycling of carbon in the environment. When an animal dies, the organic molecules that make up its body become available to decomposers. These decomposers use enzymes to break down the complex organic molecules into simpler compounds, such as sugars, amino acids, and fatty acids.
Hence, the process that returns carbon from the vast reservoir of animal bodies to the active carbon cycle is called decomposition, which is present in Option A.
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complete question is below
Because the bodies of animals contain carbon molecules, the animal kingdom stores huge amounts of carbon. Which of the following processes returns carbon from this vast reservoir to the active carbon cycle?
A)decomposition
B) nitrogen fixation
3. The metric system of measurement is based on the number 1
What?...............
Which one of these are not protected under
the freedom of speech?
Your right to criticize your mayor.
Your right to criticize the president.
Your right to criticize your senator.
Your right to criticize your boss.
Answer:
Your right to criticize the president
planet earth is considered uniquely difference from any other planets in the solar system.Which among the given choices correctly answer the statement?
The missing part of the question that is a group of statements is given as follows:
A. Earth is the only planet that changes structure.
B. Earth is the only planet that turns around in space.
C. Earth is the only planet that is mostly covered with water.
D. Earth is the only planet that is mostly made from rocks.
Answer:
The correct answer is - option C. Earth is the only planet that is mostly covered with water.
Explanation:
Earth is the only planet in our solar system that has liquid water, and it covers 75% of the total surface of the planet that gives it a unique identity as the blue planet of the solar system.
There are some other differences as well like plate tectonics, atmosphere and life make earth totally different from other planets.
Thus, the correct answer is - option C. Earth is the only planet that is mostly covered with water.
a potential, testable answer to a scientific question is called a(n) ____ (blank)
Answer:
Hypothesis.
Explanation:
Also known as a theory or theorum.
Suggest why a cell within the trunk of a tree cannot carry out photosynthesis.
Answer:
The water needed for photosynthesis is absorbed through the roots and transported through tubes to the leaf. Note that root cells do not contain chloroplasts, as they are normally in the dark and cannot carry out photosynthesis.
Explanation:
The trunk of a tree consists of dead tissues and serves only to support the weight of the tree crown. This portion of the tree does not contain chloroplast, hence photosynthesis is not carried.
What is Photosynthesis?Photosynthesis may be defined as a process through which green plants and some photosynthetic algae synthesize their food in the form of glucose with the help of carbon dioxide and water in the presence of sunlight.
The part of the trunk region of the tree does not have chloroplast, chlorophyll pigments, and other required machinery which is significantly utilized by the leaves of the tree in order to perform photosynthesis. Due to this, the trunk part of the trees is not capable to carry out the same process.
Therefore, the most prominent reason why a cell within the trunk of a tree cannot carry out photosynthesis is well described above.
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А
is an agent that can cause infections and diseases.
Bacteria, viruses, fungi, Protozoa, and Helminths
Which graph shows logistic growth of a population? *
(2 Points)
OA
OB
A and B
neither A or B
Answer:
OB
Explanation:
im preeeeety sure
Which situation is a good example of the transfer of energy through radiation?
A. Energy passes from one person’s hand to another person when they shake hands.
B. A snake’s body temperature increases when the snake lies in the Sun.
C. Warm air that is less dense rises to the ceiling of a room.
D. A fan cools the CPU in a computer.
Radiation has been the mode of thermal energy transfer from a source. "A snake’s body temperature increases when the snake lies in the Sun" is an example of radiation. Thus, option B is correct.
What is radiation?Radiation has been the type by which the thermal heat energy passes from the source to the other site. It has been independent of contact and involves traveling in space with the equivalent speed of light. Unlike conduction and convection, radiation does not need matter.
The particles tend to move in space like the sun's rays heating the earth. When a snake lies in the sun its body temperature rises due to tradition as the solar energy from the sun (high temperature) moved in space to the lower temperature (snake's body).
Therefore, option B. heating the snake's body under the sun is an example of radiation.
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Give the symbols for the element that makes up each of the following:
______Carbohydrates.______ Lipids. _____DNA. _____Proteins.
Answer:
The correct answer is :
1. CHO
2. CHO
3. CHONP
4. CHON
Explanation:
Carbohydrates are composed of the carbon, hydrogen, oxygen in the ration of 1:2:1 which means hydrogen atoms are double than oxygen and carbon atoms. Carbohydrates are also known as sugars or polymer of sugars.
Lipids are composed of long chains of fatty acids made up of carbon, hydrogen, and oxygen molecules that are insoluble however ade up of organic molecules.
DNA or deoxyribose nucleic acid is the basic unit of cell and known as genetic material. It is made up of ribose sugar, a nitrogenous base, and phosphate backbone so elements that make these nutrients are Carbon, hydrogen, and oxygen with nitrogen and phosphorus.
Proteins are made up of amino acids that have carbon, hydrogen, oxygen, and nitrogen element in them.
The 4 macromolecules are namely Carbohydrates, Proteins, Nucleic acids, and Lipids. The composition of each macromolecule is defined by the elements present.
The symbols for the element that makes up each macromolecule are listed below:
Carbohydrates-H, C, and O(Hydrogen, Carbon, and Oxygen) Lipids-H, C, and O(Hydrogen, Carbon, and Oxygen) DNA-O, H, N, C, and P(Oxygen, Hydrogen, Nitrogen, Carbon, and Phosphorus) Proteins-O, H, C, and N(Oxygen, Hydrogen, Carbon, and Nitrogen)Thus, the symbols of the element that make up Carbohydrates, Proteins, Nucleic acids, and Lipids are defined.
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Compare and contrast bodily reactions driven by two parts of the ANS: the sympathetic nervous system and the parasympathetic nervous system. Provide examples where each system would be highly active.
Difference
The sympathetic nervous system prepares the body for the “fight or flight” response during any potential danger. On the other hand, the parasympathetic nervous system inhibits the body from overworking and restores the body to a calm and composed state.
Examples of parasympathetic responses
An easy acronym to remember how and where the PSNS works is SLUDD. This stands for:
Salivation: As part of its rest-and-digest function, the PSNS stimulates production of saliva, which contains enzymes to help your food digest.
Lacrimation: Lacrimation is a fancy word for making tears. Tears keep your eyes lubricated, preserving their delicate tissues.
Urination: The PSNS contracts the bladder, which squeezes it so urine can come out.
Digestion: The PSNS stimulates the release of saliva to promote digestion. It also enacts peristalsis, or the movement of the stomach and intestines, to digest food as well as release bile for the body to digest fats.
Defecation: The PSNS constricts the sphincters in the intestine and moves digested food material down the digestive tract so a person can have a bowel movement.
Examples of the Sympathetic Nervous System Response
The classic case of SNS response is a physical danger, especially with a potential predator, and the preparation of the body for either fight-or-flight. The overall system is designed to enhance voluntary muscle activity while shutting down all non-essential functions.
Arterioles and veins in most vascular beds constrict, reducing blood flow to the skin and digestive organs. Sphincters in the digestive organs also constrict, to control the flow of food from one organ to the next. However, coronary blood vessels, pulmonary circulation and parts of the respiratory tree respond with dilation, to enhance cardiac output. The heart beats with greater contractile force and at a higher frequency as well. Vasoconstriction in many parts of the body also increases blood pressure.
Similarity
Both are the part of ANS. Both originate from the spinal cord. Both have huge influence on physiological process of the body such as respiration, circulation, digestion, urination and reproduction.
The SYMPATHETIC nervous system drives fight-or-flight responses, whereas the PARASYMPATHETIC nervous system drives “rest and digest” responses.
The autonomic nervous system (ANS) comprises the sympathetic system and parasympathetic system.
The sympathetic nervous stimulates 'fight or flight' responses, whereas the parasympathetic system activates 'rest and digest' responses.
The sympathetic nervous system is involved in body reactions such as the acceleration of the heart, constriction of the blood vessels, etc.
The sympathetic nervous system is involved in body reactions such as lowering the heart rate, lowering the flow of blood to skeletal muscles, etc.
Some examples that activate the parasympathetic system include:
Get a massageMeditationSlow breathingSome examples that activate the sympathetic system include:
StressOverstimulationIn conclusion, the SYMPATHETIC nervous system drives fight-or-flight responses, whereas the PARASYMPATHETIC nervous system drives “rest and digest” responses.
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3. Which tenet of the cell theory is being demonstrated by the graph below?
O Cells are the smallest unit of life
All living things are made of cells
Cells come from existing cells
Cells can never be destroyed
Answer:
Cells comes from existing cells and structures
How can citizens protect civil liberties?
Which choice shows the correct sequence or order of events for a scientific experiment?
A) Perform experiment -> Form hypothesis -> Analyze data -> Draw conclusions
B) Analyze data -> Form hypothesis -> Perform experiment -> Draw conclusions
C) Perform experiment -> Analyze data -> Draw conclusions -> Form hypothesis
D) Form hypothesis -> Perform experiment -> Analyze data -> Draw conclusions
Answer:
b
Explanation:
analyze data, form hypothesis, perform experiment, draw conclusions
D
Took the test on usatestprep
The difference between osmosis and active transport is that-
Osmosis is the diffusion of water across a membrane, where the water at a higher concentration naturally moves to the side of the membrane that has a lower concentration to even it out. Active transports move any ions or molecules, not just water, and require energy to move in and out of a membrane.
Hope this helps! Feel free to simple it down in your answer :)
An investigation is a example of what?
In the gene TATTCATTGTTA—TGATTT—ATTCG, CATTGTTA encodes for pepsin, a digestive enzyme. The rest of the sequence doesn’t code for any protein. Which sequence contains a mutation that will affect the formation of pepsin?
A.
TATTCATTCATTA—TGATTT—ATTCG
B.
TATTCATTGTTA—TGACTTT—ATTCG
C.
TATTCATTGTTA—TGATTT—ATTGGCG
D.
TATTCATTGTTA—TGAT—ATTCG
E.
TGCATTCATTGTTA—TGATTT—ATTCG
Answer:
A. TATTCATTCATTA—TGATTT—ATTCG
Explanation:
TATTCATTGTTA—TGATTT—ATTCG
The bold and underlined part is the only part of the sequence that codes for pepsin. Therefore, only mutations in this area will affect the formation of the protein.
The only sequence where the "CATTGTTA" part of the sequence is affected is option A.
Answer: A. TATTCATTCATTA—TGATTT—ATTCG
Explanation: CATTGTTA - CATTCATTA
how would removing the oak trees from our words affect the environment
Answer:
the remove black carbon from the urban atmosphere. Their findings may offer a natural way to improve climate and air quality.
THIS WILL HELP ME WITH MY GRADE PLS HELP!
Describe the steps necessary to turn a gene into a protein using the word bank and sentence frame below.
Word Bank:
transcription, nucleus, amino acid, nucleotide, folds, mRNA, translation, ribosome, genes, protein
Sentence Frame:
Initially, _____, meanwhile _____, finally ____.
BRAINLIEST What stage of cellular respiration uses the high-energy electrons from NADH and FADH2 to form ATP molecules?
Krebs cycle
Electron transport chain
Fermentation
Glycolysis
Answer:
Krebs cycle
Explanation:
Electron transport chain
AD+ and NADH: NAD+ is an electron carrier that accepts a pair of high-energy electrons to become NADH. The NADH carries the high-energy electrons to the electron transport chain where they are used to build high-powered ATP molecules.
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