Answer:
Mass is not conserved in chemical reactions. ... This means that the total mass and energy before a reaction in a closed system equals the total mass and energy after the reaction. According to Einstein's famous equation, E = mc2, mass can be transformed into energy and energy can be transformed into mass.
Explanation:
Answer:
Mass is not conserved in chemical reactions. The fundamental conservation law of the universe is the conservation of mass-energy. This means that the total mass and energy before a reaction in a closed system equals the total mass and energy after the reaction. According to Einstein's famous equation, E = mc2, mass can be transformed into energy and energy can be transformed into mass. This is not some exotic process, but in fact happens every time there is a reaction. Mass is therefore never conserved because a little of it turns into energy (or a little energy turns into mass) in every reaction.
Which of the following organisms contributes to the production of soil on a newly formed area of land during primary succession?
Answer:
The settling of a pioneer community marks the start of the colonizing phase of primary succession. Examples of pioneer species are lichens, algae, and fungi. These species are more tolerant and eventually contribute to the formation of the soil by breaking down rocks into smaller particles.
Explanation:
please help me fill out this concept map!! it’s about Cultural Eutrophication
Okay where is the map
please answer this for me (9)
Answer:
A.
Explanation:
All living things (whether a plant or an animal) will have cells
Answer:
A, All living things
Explanation:
Animals, plants, bacteria, fungi, etc. are compossed of cells: the most basic and smallest unit of life.
Myth: An organism's kingdom only describes physical characteristics.
Answer:
No it does not because an organism's Kingdom describes a set of Organisms. The organisms in each Kingdom. There are six of them. They are Archaebacteria, Eubacteria, Fungi, Protista, Plants and Animals
Explanation:
The set of human tail bones is an example of a(n)
Answer:
wisdom teeth, and inside corner of the eye
Explanation:
In what positions are the sun, moon, and Earth during a full moon?
Answer:
they would be straight the sun behind the moon
Explanation:
shining light on it to seem lite
All of the following statements are true about enzymes, EXCEPT
A)They are biological catalysts.
B)They lower the amount of activation energy needed for a reaction.
C)They bind with the substrate.
D)They can be used only once.
A base is a substance that
Please help me with this.
Choose one of these career fields:
- astronomer
- geologist
- meteorologist (this)
- oceanographer (or this)
- List three tasks this type of scientist completes most days.
- List a location where such a scientist may work.
- Identify three reasons why this type of scientist's work is important.
- Identify what course of study is necessary to work in this field of science, as well as how many years of study are necessary to complete a degree in this field.
Students planted the same type and number of seeds in pots A and B. The amount and type of soil in both pots were also the same. Each plant received the same amount of water each week. Pot A was placed by a sunny window. Pot B was placed in a closet. After four weeks, the students observed the plants in both pots. The plants in pot A were green with thick stems. The plants in pot B were yellow with thin stems. Which statement best explains why the plants in pot A were different from the plants in pot B?
Answer:
C) Pot A received more sunlight than pot B.
Explanation:
Seeds or plants require some very important factor to grow that include carbon-dioxide, water and sunlight to undergo the process of photosynthesis.
Photosynthesis is the process by which plants make their own food by utilizing carbon-dioxide and water in the presence of sunlight and releases oxygen and energy.
In the given example, both the plants received equal amount of water and soil but the difference is in the position of the plant, in which plant A was placed by a sunny window from where plant have undergoes the photosynthesis process and grew with green with thick stems. while plant B was placed in a closet where no sunlight was present and the plant grew with yellow with thin stems.
Hence, the correct answer is "C) Pot A received more sunlight than pot B. "
Answer:
Answer: C) Pot A received more sunlight than pot B
Explanation:
Here's why: Pot A received more sunlight than pot B is correct. Plants need sunlight in order to make chlorophyll. Chlorophyll is the chemical that makes plants green.
please help asap i will mark brainliest
Answer:
An ionic bond is one formed between two ions with opposing charges. In covalent bonding, molecules are formed by the constituent atoms sharing electrons so they both have full valence (outer) shells, but some electrons occupy the outer shells of both elements at the same time.
63.5 cm
23 cm
43 cm
Calculate Find the volume of the suitcase
Answer:
the volume 62801.5 cm
Explanation:
dont forget the formula for volume of a rectangular prism is v = LWH
These always contain DNA as the main genetic material
A. Virus
B. Both
C. Cells
Answer:
C
Explanation:
The one that always contain DNA as the main genetic material is cell nucleus. The correct option is C.
What is genetic material?The genetic material is the molecule that contains genes and is passed down from parents to children. It contains instructions for the growth and function of living organisms.
DNA and RNA are the two main types of genetic material. DNA is stored in the nucleus of eukaryotic cells, which have a nucleus and membrane-bound organelles, and is wrapped around round proteins called histones. DNA is ended up finding in the cytoplasm of prokaryotic cells.
A virus is composed of a core of genetic material surrounded by a protein-based protective coat called a capsid.
Viruses have either RNA or DNA as their genetic material, but neither. Single-stranded or double-stranded nucleic acid
Thus, the correct option is C.
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A botanist discovers a plant that has the ability to form different forms of starch grains in response to nutrient availability. What can you conclude about the various molecules responsible for these
responses?
A. They alter the amount of energy available to the plant.
B.They respond to air temperature changes.
C.They are modified by soil composition changes.
D. They are modified by changes in moisture.
Please help!!!
Answer:
They are modified by soil composition changes
Explanation:
Answer:
I think it is C i am taking the test right now and that is what i am putting
Explanation:
Explain how a global temperature increase could affect plants.
Answer: When temperatures rise, Plants grow taller to cool themselves off.
Explanation:
Their stems grow taller and their leaves become narrower and grow farther apart.
Which is the set of odd numbers between three and five? O null set 0 [3, 4, 5) o {4} O all real numbers
Answer:it’s 5 and 3
Explanation:because I think
Answer:
Null set
Explanation:
I just took the quiz lol
Someone can please describe what happens to the valence electrons when two elements form an ionic compound?
Answer:
ionic bond / electrovalent bond.
electrostatic attractions between oppositely charged ions .
eg: NaCl.
Na - 2, 8 ,1 Na^+ 2, 8
Cl - 2, 8 ,7 Cl^- 2 , 8, 8
Na^+ + Cl^- gives Na^+Cl^-
sodium loses one electron to attain nearest noble gas configuration.
Chlorine gain one electron from sodium to attain nearest noble gas configuration .
Identify the labeled structures. A B C D E
Answer:
A Golgi body
B vacuole
C mitochondrion
D nucleus
E cell membrane
Explanation:
Answer:
A: Golgi body
B: Vacuole
C: Mitochondrion
D: Nucleus
E: Cell membrane
Explanation:
I did the assignment on Edg2021
dean is studying an organism. It is heterotrophic, multicellular, and eukaryotic. And sometimes undergoes sexual reproduction.
A.Fungi
B.Bacteria
C.Animalia
D.Plantae
Answer:
A) Fungi
Explanation:
Why do apples, potatoes, and onions all taste the same when you eat them with your nose plugged?
Answer:
You won't get to smell so your brain won't know the difference is my guess
Answer:
Apples, potatoes and onions will all taste the same if somehow you were to block your sense of smell (plug your nose).
Explanation:
Which structures are not found in simple leaves?
HELP!!! WILL MARK BRAINLIEST
ITEM BANK: Move to Bottom
Cell Membrane
Cell Wall
Central Vacuole
Chloroplast
Mitochondrion
Nucleus
Answer:
wait what's the question ❓
What do you call the tool that summarizes all the chemical elements into a table?
C. Elemental Table
D. Periodic Table
A. Table of Symbols
B. Periodic Tale of Elements
b) periodic table of elemnts
Answer:
d the periodic table
Explanation:
it is split in to two sides metals and non metals and the chemical elemnts are on the non metal side
Development is:
A. Multidimensional
B. Multidirectional
C. Pliable
D. All of these are correct
Answer:
D
Explanation:
Apex :)
Development is multidimensional, multidirectional and pliable. So, the correct option is D.
What is Development?Economic and social development is a procedure through which the financial stability and standard of life of a nation, area, community, or an individual are enhanced in accordance with specific aims and objectives, according to the economics study of the public sector.
The following list of development's numerous facets is summarised:-
• Individuals can have various developmental aspirations.
• Development for one person need not always be unsuitable for another. It might even be harmful to other people. For instance, industrialists may need dams to generate electricity to power their businesses. Those that are uprooted might harbour resentment towards the same dams.
• It is crucial to remember that various people may have contradictory or divergent ideas about a nation. Development is multidimensional, multidirectional and pliable.
So, the correct option is D.
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in your own words, explain why osmosis is really just a special case of facilitated diffusion
Answer: It describes water molecules moving across a membrane, which allows the water molecules to pass in and out freely, but forbids the motion of other molecules.
Explanation:
A in Biology class last year.
Osmosis is really just a special case of facilitated diffusion because it
doesn't permit the movement of some molecules.
Osmosis can be defined as the movement of solvent molecules such as
water from a region of higher concentration to a region of lower
concentration through a semi-permeable membrane.
Osmosis is however a special case of facilitated diffusion because it permits
the movement of water molecules and inhibits the movement of other
molecules such as sugar etc.
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what are the similarities and differences between facilitated diffusion and active transport by a protein pump
The similarities between facilitated diffusion and active transport by a protein pump are firstly facilitated diffusion and active transport are two membrane transport mechanisms, which transport molecules across the plasma membrane, secondly transmembrane proteins are involved in both facilitated diffusion and active transport.
The differences between them are facilitated diffusion takes place down the gradient of concentration. active transport takes place toward the gradient of concentration. Facilitated diffusion is a passive method and needs no energy. An active method is an active transport.
What do you understand by facilitated diffusion?
"Facilitated diffusion is the passive movement of molecules along the concentration gradient. It is a selective process."
What do you understand by active transport?
"Active Transport is defined as a process that involves the movement of molecules from a region of lower concentration to a region of higher concentration against a gradient or an obstacle with the use of external energy."
What is a protein pump?
"Protein pump– a kind of protein that is capable of pumping out compounds that could pose a threat to the cell."
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17. How do we get macromolecules and what do we use them for?
A.food we eat / energy only
B.air we breathe / new cells and energy
C.air we breathe / energy only
D.food we eat / new cells and energy
Answer:
D. food we eat / new cells and energy.
Answer:
b
Explanation:
googled it ;)
Describe the similarities between enzymes and receptors.
Answer:
Receptors and enzymes are both located in the cell membrane. Receptors and enzymes are both proteins that can cause a reaction or response. Receptors and enzymes both speed up chemical reactions. Receptors and enzymes do not have any similarities.
Explanation:
Enzymes are known as biological catalysts. They speed up a chemical reaction taking place inside the body. Receptors can be defined as the chemical structures that transduce and receive signals.
The similarities between enzymes and receptors are as follows:
Both are composed of proteins.Both contain specified sites for their substrates.Receptor causes a response and enzymes facilitates a reaction.Both are proteins and both are crucial for the completion of different functions in the body.
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Place the phases of a stem cell into the correct order.
A.differentiation, mitosis, specialization
B.gene expression, differentiation, mitosis
C.mitosis, gene expression, differentiation
D.mitosis, specialization, gene expression
Answer:
C. Mitosis, Gene expression, differentiation
Explanation:
Stem cells are referred to as undifferentiated cells which has the ability to develop into new specialized cells via cellular differentiation. The stem cell initially undergoes MITOTIC division to form new stem cells.
This stem cells then undergo GENE EXPRESSION by turning off some genes and turning on some in order to specialize the cell type. After this, the cell becomes DIFFERENTIATED i.e becomes another type of cell
Place the phases of a stem cell into the correct order.
The correct order would be mitosis, gene expression and then differentiation.
Stem cells can be defined as undifferentiated cells that possesses the ability to develop into many other different cells of the body. Before a stem cell becomes differentiated, the stem cell undergoes growth, mitosis and then information from the gene (DNA) in the cell will be needed to determine the type of cell it will become and be expressed before differentiating and becoming specialized to give rise to a particular type of cell.
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!!!! PLEASE ANSWER !!!!! What factors increase the likelihood that all alluvium will be deposited ???
Answer:
Any thing that decreases the stream's velocity such as a bend in the river, a change in gradient or something blocking its path.
Explanation:
Any thing that reduce the stream's speed such as a turn in the river, a change in angle or something prevent its path.
What is soil explain?Soil is the thin layer of material covering the earth's surface and is formed from the weathering of rocks. It is made up mainly of mineral particles, organic materials, air, water and living organisms all of which interact slowly yet constantly.
Thus, reduce the stream's speed such as a bend in the river, a change in angle or something prevent its path.
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