Physical and chemical changes may be similar because neither can change the number of atoms of each element that are present.
What do you mean by Physical changes?Physical changes may be defined as those changes which appeared physically like color, odor, texture, mass, and density.
Chemical changes may lead to the formation of new chemicals with definite properties. It involves when the chemical identity of any substance may alter.
Therefore, physical and chemical changes may be similar because neither can change the number of atoms of each element that are present.
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Answer:
Neither can change the number of atoms of each element that are present.
Explanation:
took test
Why are fuel cells better for the environment than fossil
fuels?
Answer:
option a
Explanation:
because When hydrogen is used to power a fuel cell, the only byproducts are water and heat—no pollutants or greenhouse gases are produced.
Periodic inventory systems are used most commonly by companies that sell
Periodic inventory systems are used most commonly by companies that sell low-priced, high-volume merchandise.
What do you mean by Periodic inventory systems?Periodic inventory systems may be defined as a strategy of inventory valuation in which a material count of inventory is executed at specific intervals.
Periodic inventory systems regularly updated their inventory balance to analyze their expenditure, profit, and loss.
Therefore, periodic inventory systems are used most commonly by companies that sell low-priced, high-volume merchandise.
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The sun’s atmosphere contains the
Answer:
the photosphere, the chromosphere and the corona
Explanation:
Which process tends to occur more quickly, natural selection or artificial selection? Why do you think this is so?
Are plant cells shaped so they can stack?
Answer: Yes
Explanation:
Plant cells come in all shapes and sizes. Some are round, some are brick shaped, others look like shoe strings. The one thing they have in common is a rigid cell wall. This means that they cannot change shape very easily. The straight, strong walls give the plant cells tensile strength and allow them to stack on top of each other. This enables plants to grow upwards.
What is earth’s position in the hierarchy of organizations within the universe?
Answer:
Big Bang, the universe is still expanding. Slowly the planets get further away from each other. It's the third planet from the sun, some believed that the earth was in the center of the universe and now we believe the sun is in the middle.Explanation:
2. 40% of the students on a field trip love the museum. If there are 20 students on the field trip, how many love the
museum?
8. Maya spent 40% of her savings to pay for a bicycle that cost her $85.
How much money was in her savings to begin with?
b. How much money does she have left in her savings after buying the bicycle?
a.
Answer:
2. 8 students love the museum
8. $212.5
she will have $127.5 left
Which of the following determines the order the amino acids are moved into the ribosome by the transfer RNA?
Answer:
This order is determined by the attraction between a codon, a sequence of three nucleotides on the mRNA.
Explanation:
Which experimental design below would provide students with information about how the presence or absence of enzymes affect organisms?
(A) Monitor the energy level earthworms where one group has unlimited water available and one group has limited water availability.
(B) Placing plants in phosphorus rich environments and monitor their growth compared to plants placed in an environment without phosphorus.
(C) Placing plants in hypertonic environments and monitor their growth compared to plants placed in a hypotonic environment.
(D) Monitor the energy level of earthworms where one group has very few mitochondria and therefore lower levels of ATP synthase.
Answer:
Monitor the energy level of earthworms where one group has very few mitochondria and therefore lower levels of ATP synthase.
Explanation:
I did the quiz.
The experimental design that would provide students with information about how the presence or absence of enzymes affects organisms is as follows:
Monitor the energy level of earthworms where one group has very few mitochondria and therefore lower levels of ATP synthase.Thus, the correct option for this question is D.
What are Enzymes?Enzymes may be defined as biological catalysts that assist in increasing the speed of the biochemical reaction inside the body of living organisms. Such types of compounds regulate the process of biochemical reactions without being consumed in them.
Among the options given above, the mitochondria is a type of cell organelle that produces energy in the form of ATP with the action of an enzyme known as ATP synthase.
If this enzyme is present in a normal amount, then the synthesis of ATP or energy is normal for the organism. But if this enzyme is lower than the actual level, it is found that mitochondria would not produce sufficient energy.
Therefore, the correct option for this question is D.
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Which are two states in the
us that have faults that don't
follow plate boundaries?
a. maine and florida
b. south carolina and missouri
c. california and texas
d. ohio and minnesota
Answer: a. maine and florida
Explanation:
Is it true that bacteria and viruses are a type of disease?
Answer:
yes
Explanation:
There are many bacteria and viruses that are harmful and can cause diseases but there are some bacteria that are helpful
Hope it helps! Mark it as brainiest please
Answer:
The simplest I can put it is, they are not diseases, but can cause diseases. Let's say I got the cold. I got that cold because I had the virus that gives me the cold, so that is why I have the cold. Bacteria is often helpful over harmful, so bacteria can only cause viruses but it not fully classified as a disease.
Can u answer the quest
Answer:
but I don't see a quest in this question
What is budding, cutting and grafting and how are they used in Agriscience
(LEGIT QUESTION DO NOT DELETE Y'ALL DONT HAVE AN AGRISCIENCE OPTION)
Answer:
Grafting and budding are horticultural techniques used to join parts from two or more plants so that they appear to grow as a single plant.
Explanation:
Grafting and budding are horticultural techniques used to join parts from two or more plants so that they appear to grow as a single plant. In grafting, the upper part (scion) of one plant grows on the root system (rootstock) of another plant. In the budding process, a bud is taken from one plant and grown on another.
Answer :Grafting and Budding are used so that a two plants can grow together
Explanation:
Grafting and budding are horticultural techniques used to join parts from two or more plants so that they appear to grow as a single plant. In grafting, the upper part (scion) of one plant grows on the root system (rootstock) of another plant. In the budding process, a bud is taken from one plant and grown on another.
Write the systematic (iupac) names for the amines. The names should have the format alkanamine
The systematic names for the amines following the format alkanamine is : 4-Methyl-2-hexanamine
What is Systematic ( IUPAC ) name ?IUPAC name is the standard way of naming organic compounds in chemistry following the chemistry rules as setout by IUPAC. The systematic names for the amines as attached below is 4-Methyl-2-hexanamine.
Hence we can conclude that The systematic names for the amines following the format alkanamine is : 4-Methyl-2-hexanamine.
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Sue is visiting a natural history museum. She reads a sign for a dinosaur fossil that states that the fossil is from 78 million years ago.
What dating method did scientists use to determine the age of this fossil?
Answer:
it is absulute dating
Explanation:
How are mitosis and meiosis similar?
A.) They both produce new cells.
B.) They both reduce the chromosome number.
C.) They both produce reproductive cells.
D.) They both make new cell walls.
Answer:
Explanation:
They both produce new cells
Explanation:
Mitosis and meiosis both represent cell division that occur in humans and other animals. These cell division processes share many aspects, including the production of new cells and replication of genetic material.
Answer:
They both reduce the chromosome number.
Explanation:
(2) Over-Reproduction: How could making too many polar bears cause competition between the different polar bears types?
The energy of microwaves is less than the energy of ultraviolet light. Which comparison of the energies of electromagnetic waves is correct?
Gamma rays have higher energy than microwaves because gamma rays have shorter wavelengths.
Gamma rays have higher energy than microwaves because gamma rays have lower frequencies.
Infrared light has lower energy than X-rays because infrared light has shorter wavelengths.
Infrared light has lower energy than X-rays because infrared light has higher frequencies.
Answer:
The energy of microwaves is less than the energy of ultraviolet light. Which comparison of the energies of electromagnetic waves is correct? X-rays have lower energy than gamma rays because X-rays have higher frequencies.
Which human body part is the epidermis of a leaf similar to?
1 lungs
2 skin
3 blood vessels
4 heart
Answer:
skin
Explanation:
skin skin skin skin skin skin
Plum Island is divided into two diverse areas. (A) What are the differences between the two sides? What are the relative fractional sizes of the sides. (B) During a storm what are the differences in effect on the flora and base of the island?
Plum Island is divided into two different areas, the differences between the two sides are few, but one was human activity and the other was not.
During a storm, what are the differences in effect on the flora and island base?
On the one hand, being more preserved than the other, soil erosion will be lower on the side with greater vegetation, and the area where there was human activity suffers more from strong winds and rains.
With this information, we can conclude that Plum Island is divided into two different areas, the differences between the two sides are few, but one was human activity and the other was not.
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What is the order of the relationships Jane saw at the farm ?
Answer:
Parasitism, competition, and finally mutualism
Explanation:
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In a particular plant, having smooth seeds is a dominant trait. Having wrinkled seeds is a recessive trait. Two plants with smooth seeds would have what kind of offspring?
A.
The offspring must have smooth seeds.
B.
The offspring may have smooth or wrinkled seeds.
C.
The offspring must have wrinkled seeds.
D.
The offspring have a 25% chance of having smooth seeds.
The statement 'offspring may have smooth or wrinkled seeds' is correct about the offspring of two plants with smooth seeds.
What is a dominant trait?In genetics, a dominant trait is a phenotypic feature associated with the expression of a dominant allele.
An individual can exhibit a dominant trait and be heterozygous for the trait, thereby its offspring can exhibit the recessive trait.
In conclusion, the statement 'offspring may have smooth or wrinkled seeds' is correct about the offspring of two plants with smooth seeds.
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What element is group 5 period 7
Group 5 contains vanadium (V), niobium (Nb), tantalum (Ta) and dubnium (Db). This group lies in the d-block of the periodic table. The group itself has not acquired a trivial name; it belongs to the broader grouping of the transition metals.
The element in group 5, period 7 is Nihonium (Nh). It has the atomic number 113.
What is Nihonium?Nihonium (Nh) is a chemical element with the symbol Nh and atomic number 113. It is a synthetic element and was first synthesized in 2003 by a team of scientists at the RIKEN institute in Japan. Nihonium is a member of the group 5 elements, also known as the Nitrogen group, and is located in the 7th period of the periodic table.
It is a highly unstable element and has only been produced in very small quantities for scientific research. Due to its short half-life, it does not occur naturally on Earth. It is also known as Ununtrium.
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Which of the following statements best describes why most animal fats are formed from saturated fatty acids?
A) The hydrocarbon chains of saturated fatty acids are straight so they can be tightly packed to store more energy in less space.
B) The hydrocarbon chains of saturated fat cannot pack together closely, which keeps the animal from becoming too large.
C) The hydrocarbon chains of saturated fatty acids allow fewer hydrogen atoms to bond, which makes the molecule stable for energy storage.
D) The hydrocarbon chains of saturated fatty acids have bends so they can be loosely packed to store more energy in less space.
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While looking in a microscope, you see this same specimen, which is magnified 100X. Determine its type of cells and the level of biological organization. Give evidence used to make your determination.
Which hormone are part of the ovarian cycle and what do each of them do?
Answer:
Progesterone and Estrogen are the part of ovarian cycle
They regulate the development and function of the uterus. These hormones act by regulating the transcription of specific genes in the uterus.
PLEASE HELP!! ASAP favorable adaptations are genetic mutations that
A are acquired by increased use of an organ
B improve the organism’s chances of survival
C cannot be passed on to the next generation
D reduce the organism’s chances of survival
Answer:
[B] improve the organism’s chances of survival
Explanation:
Favorable adaptation are individual better suited to survive and reproduce in their environment. Meaning that will become more and more common in the population. Which also means they increase an organism's chances of surviving or reproducing, so they are likely to become more common over time.
Basically, improve the organism's chances of survival and reproducing. As a result we can see that the best answer choices is [B] improve the organism’s chances of survival
Kavinsky
Explain Natural Selection
Answer:
Those who adapt, survive. Those who don't adapt, die off. Offspring with healthy mutations, (evolution), outlive their siblings who slowly die off in ways from the mundane to the horrifying. They have children who then repeat this process. It is a dog-eat-dog world.
Explanation:
When temperature goes up in
water, dissolved oxygen goes
down. What type of relationship
is this between the amount of
dissolved oxygen in water and the
water's temperature?
A. an uninvolved relationship
B. an exponential relationship
C. an inverse relationship
D, a reverse relationship
Answer:
C) an inverse relationship
Explanation:
As temperatures rise, dissolved oxygen levels fall; and as temperatures fall, dissolved oxygen levels rise. This is called an inverse relationship.
What are the starting compounds in the process of cellular respiration?
Answer:
Sugar and oxygen
Explanation:
The chemical equation for cellular respiration is: C6H12O6+602 yields 6CO2+6H2O+Energy (Sugar plus oxygen yields carbon dioxide plus water plus energy). Not to be confused with photosynthesis, which is the exact opposite (Energy+6H2O+6CO2 yields C6H12O6+6O2) (Energy plus water plus carbon dioxide yields sugar plus oxygen).
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