Answer:
Im not 100 percent sure but I think C because a chemical change occurs when the chemical has broken composure so I think its C.
A chemical change occurs when both the physical properties of a substance and its identity change. The correct option is C.
What are chemical changes?A chemical change is a change when the identity of a substance changes, and it converts into a new substance with new characteristics and a new identity.
When iron comes in contact with oxygen, it changes into rust, and it is a chemical change. A chemical change is a transformation in which the substance's chemical composition is altered through atom rearrangement. Atomic alterations cause changes in the molecular structure.
Chemical properties are those property properties of a substance that does not depend on the quantity of that substance.
Therefore, the correct option is C. both the physical properties of a substance and its identity change.
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The largest amount of DNA in plant cell is contained in
Answer:
In plant cells, most DNA is located in the nucleus, although chloroplasts and mitochondria also contain part of the genetic material
your friend has an aquarium with several exotic fish, a turtle and some plants. She is moving and can't take the aquarium with her. Explain why it would not be a good idea to dump them all into the nearby pond.
Answer:
Fish and turtles are living organisms so they should not be thrown in a pond
Explanation:
God created living things and its not nice to kill them we can eat them too but dont kill them they can feel pain too.
PLS I need help with this
Answer:
The answer is C
Explanation:
prophase is first, meta is second, ano is third and telo is last
Answer:
prophase,metaphase,anaphase,telophase
Since the atoms in sugar come from water and air, plants are built mainly from material in blank and blank
3:54 4/5/22
Answer:
look im not 100% sure but i beleive it would be Carbon Dioxide and Sunlight
Explanation:
Sorry if im wrong
A species that remains when an acid has lost a proton is a.
Which is most reactive iron or potassium
Answer:
Potassium is more reactive because it is in group one
Explanation:
What is the first step in the cell cycle?
Answer:
Prophase
Explanation:
parent chromosomes are condensed into an x shape
Answer:
The cell cycle is a four-stage process in which the cell increases in size (gap 1, or G1, stage), copies its DNA (synthesis, or S, stage), prepares to divide (gap 2, or G2, stage), and divides (mitosis, or M, stage). The stages G1, S, and G2 make up interphase, which accounts for the span between cell divisions.
Explanation:
pa brainlest
scientific explanation of how a trait like less pigmentation became common in populations that live far from the equator
Answer:
selection favored lighter skin
Explanation:
This delicate balancing act explains why the peoples that migrated to colder geographic zones with less sunlight developed lighter skin color. As people moved to areas farther from the equator with lower UV levels, natural selection favored lighter skin which allowed UV rays to penetrate and produce essential vitamin D.
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Which trait is least likely to be modified by environmental influences? life span height blood type weight
Answer:
It's blood type
Explanation:
im in k12 and had a quiz about it.
What causes a river delta to form?
A. deposits of sediment
B. a newly formed mountain
C. a convergent plate boundary
D. a divergent plate boundary
Answer:
A
Explanation:
Deposists of sediments causes river delta, that is carried by a river as the flow exits its mouth and enters slower-moving or stationary water such as ocean, sea, and lakes.
Without the greenhouse effect, temper on Earth would (F) be too cool or too hot. G) become constant. (H) increase sharply. (I) vary too much.
Answer: (F): Be too cool or too hot.
Explanation: The Greenhouse Effect on Earth is a process of when gases in the atmosphere capture the heat produced by the Sun. Without the Greenhouse Effect, the heat reflected by Earth's surface would be lost in space. The temperature on Earth would drop drastically low and this could lead to oceans/lakes freezing over and some living organisms to die out. This would make most life incapable of living on Earth.
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Niche overlap indicates
(a) mutualism between two species
(b) active cooperation between two species
(c) sharing of one or more resources between the two species
(d) two different parasites on the same host
Answer:
(c) sharing of one or more resources between the two species
Explanation:
The total interaction of a species with its environment, or its functional position or status in an ecosystem, is referred to as its ecological niche. The structural adaptations, physical responces, and behaviour of a species determine its ecological niche.
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Match the key terms to their corresponding definition!
Answer:
Denature - Break down, Substrate- What an enzyme acts on, Inhibitor- Decrreeses activity, Transition state- Highest energy
Explanation:
The sea dog francis drake sailed along the coast of _______
Answer: West African Coast
Explanation:Hawkins sailed with his cousin (and soon-to-be Sea Dog) Francis Drake to the West African coast in order to capture slaves for trade in the Caribbean and South America, privateering along the way.
what is vegatative propogation?
Answer: Vegetative propagation is an a s exual method of plant reproduction that occurs in its leaves, roots and stem.
Answer:
VEGETATIVE PROPAGATIONregeneration of new plant from the vegetative part or organ of the parent plant is called vegetative propagation vegetative propagation is used full to separate the plant in wider region mother plant get favourable condition if then colonized to the reason by vegetative propagation the offspring adapted
1 NATURAL VEGETATIVE PROPAGATION-
BY ROOT -
the interact root of several Woody plants such as guava sisoo grow just below the soil produce advantages but should just below the soil produce but should develop from this bird which give rise to new plant
BY STEM -
stamp is the source of natural vegetative reproduction in several plants modification or found in stem to perform vegetative propagation
a Runners- the weak stem of creep forward on the soil that downwardly from node axillary bud are present in the axils of scale leaves node
b s ucker - rise time in similar to runner but it is underground its main stem grow upward and develop advantages root from underground
c offset- the thick and fleshy runner of hydrophytes plant is called offset
BY LEAVES
Titan plant develop adventirious bud on their leaves this word after separating from Mother plant give rise to new plant
BY BULBILS
they are fleshy but which are produced in the axils of leaves in the auxiliary Bud
ARTIFICIAL VEGETATIVE PROPAGATION-GRAFTING
it is the most common method of vegetative reproduction in this method variety of shame spices can be converted into plant of better variety in the technique of trade off to plant are joined in such portion of one part called stock is joint with another plant is called scion
BUDDING-
it is the superior and modern method of plant propagation in this method but of plant are superior varieties grafted in the stem of plant in variety after making oblique you cut up to the bark of stem after fue with this but join with plant as result formed on the new plant
LAYERING-
the method of inductor root formation the branches while they are still attached to a mother plant is called layering
CUTTING -
any part of plant root stem or leaf which has the power to develop itself into a new plant after separating from the mother plant is called cutting
IMPORTANCE OF PROPAGATION
the plant which have lost their power to produce seeds like Banana grapes Rose in it can be propagated by vegetative means only the plant which produce seed in less number are usually propagated vegetative leaf the change of some chemical x-ray and environmental variation as temperature can be studied easily in plant which vegetative propagation the tissue culture technique of vegetative propagation is used to raise disease free plantIf your heart beats 70 times per minute, everyday of the year, how many times does it beat in a year?
Answer:
36,792,000
Explanation:
Using some math, if you say that it beats at 70 pm, then you should look for how much it beats in an hour, which is 4200 (60x70). Then you have to take that number and multiply by 24, which is 100,800. In a day it beats about that amount. Then you take that number and multiply by 365, which is 36,792,000.
Calculate the amount of energy needed to increase 0. 500l of water from 25. 0c to 35. 0c
Answer:
yeet
Explanation:
Which of the following (i-iii) will a person suffer from if he/she is travelling in a train which is overcrowded?
i.Heart attack
ii.Tuberculosis
iii.Typhoid
b. Justify your answer and also mention any two symptoms of the same.
Answer:
ii
Explanation:
tuberculosis is an airborne disease if one is affected he or she can spread the disease especially in closed crowded areas.
symptoms are continuous coughing over a week,loss of weight
Why is it significant that the two strands of dna are antiparallel.
Answer:
because of its hydrogen bonding between the complementary nitrogenous base pairs.
Which of the following is not a future consequence of bioenergy use?
Increased ethanol production
Fewer greenhouse gas emissions
Increasing prices for biofuel crops
Less deforestation and land use
We can confirm that Increased ethanol production is not a consequence of bioenergy use.
Why is ethanol production not a consequence of bioenergy?This has to do with the fact that there would be no need for increased production of ethanol when using bioenergy. This is due to the fact that biomass naturally produces ethanol and that most bioenergy does not rely on ethanol to be created.
Therefore, we can confirm that Increased ethanol production is not a consequence of bioenergy use.
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Answer: less deforestation and land use
Explanation: took test
Models of both atmospheric and oceanic circulation show predictable patterns of air and water movement across the globe. The
phenomenon that MOST directly causes these atmospheric and oceanic circulation patters is
Coriolis effect is the phenomenon that most directly causes these atmospheric and oceanic circulation patterns.
What is Coriolis effect?This is defined as an apparent deflection of the path of an object that moves within a rotating coordinate system.
Atmospheric and oceanic circulation patterns aride from deflection of the direction of air and water currents moving towards or away from the poles.
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15. What is atherosclerosis?
A. the build up of fats and cholesterol in the walls of blood vessels
B. the field in which scientists investigate how many people have a disease
C. a method used to correct arrhythmias
D. another word for high blood pressure
Atherosclerosis refers to the build-up of fats and cholesterol in the walls of blood vessels (Option A).
What is atherosclerosis?Atherosclerosis is a disease characterized by the build-up of fats and cholesterol in the walls of blood vessels.
This build-up of fats narrows the blood vessels, thereby difficulting the movement of blood in the bloodstream.
The symptoms of atherosclerosis include, among others, chest pain, shortness of breath and fatigue.
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Answer:
I hope this helps.
Explanation:
Which of the following is a negative consequence associated with both slash-and-burn and monoculture?
O Decreased yield
O Increased pollution
O Ecosystem disruption
O Reduced biodiversity
Answer:
Increased pollution I think is the right answer
The use of dna fingerprinting relies on the fact that:.
Which of the following statements about energy and trophic levels is not true? a. the amount of available energy decreases at each higher trophic level. b. the energy conversion efficiency decreases at higher trophic levels. c. the net production of energy is higher at lower trophic levels. d. none of the above please select the best answer from the choices provided a b c d
All statements are true about the energy and trophic levels. So, the correct option is D. None of the above.
What are trophic levels?Trophic levels are the levels of energy transfer from lower to higher levels.
There are five levels of trophic level.
The lower level contains autotrophs or producers. And the uppermost level contains big animals or tertiary consumers.
The energy level decreases on going to the higher levels because some amount of energy always lapses as entropy.
Thus, the correct option is D.
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Answer: D
Explanation: fr fr
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Mycorrhiza is an example of
(a) ectoparasitism
(b) mutualism
(c) endoparasitism
(d) predation
Explanation:
Mycorrhiza is a symbiotic association between plant roots and fungi, so the answer should be Mutualism.
If the following events are arranged in the order in which they occur for an animal hiding and holding still in response to seeing a predator, which is the fourth event in the series?.
Animal hiding-holding still response follows the reflex arc sequence. The fourth event in the series is option B) signaling by efferent PNS neurons.
When the animal receives the stimuli, it responds to them. In the case of hiding-holding still response, the animal might freeze due to motor inhibition that reduces excitatory signals.
The reception and reaction to stimuli follows the reflex arc sequence.
What is reflex arc?The reflex arc refers to the sequence of events since the body receives an external stimulus until it reacts.
The correct answer is B) signaling by an efferent PNS neurons.
Note: Due to technical problems, you will find the complete explanation in the attached files.
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According to the histogram, how many shipments had more than 20 light bulbs broken? A) 4 B) 6 C) 7 D) 12
The histogram depicts that the number shipments that had more than 20 light bulbs broken is D. 12.
What is a histogram?A histogram simply means a graphical representation that is used to organize a group of data points into ranges.
From the complete question, the histogram shows that the number shipments that had more than 20 light bulbs broken is 12. This can be interpreted based on the ranges shown in the histogram.
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Answer:
7
Explanation:
I did the USA test prep!!
How many constitutional isomers are obtained when the following compound undergoes monochlorination?.
The constitutional isomers that are obtained when the compound -methyl cyclopentane undergoes monochlorination are five in number.
What is Monochlorination?This term is used to describe the process by which chlorination occurs using a single chlorine atom.
Monochlorination is used to convert lots of chemicals into commercially viable chemicals.
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why did mammals evolved so quickly after the extinction of the dinosaurs
“When the dinosaurs went extinct, access to different foods and environments enabled mammals to flourish and diversify rapidly in their tooth anatomy and evolve larger body size,” said lead author Madelaine Atteberry from the University of Colorado Geological Sciences Department.