Answer:
hey, Can you help me with my questionn pls
Explanation:
DNA is one of the features common to all known forms of life; it
forms the protective outer membrane of cells.
is used to transfer information from parents to their offspring.
is used to obtain energy from the environment.
is used in sensing changes within the environment.
Answer: B: is used to transfer information from parents to their offspring.
Explanation: DNA is inherited from each parent by the process of reproduction. Reproduction is the process of forming a new individual to pass down the genetics by the process of fusion of the male and female gamete. DNA is passed from the mother in the egg. It is passed down from the father in the sperm. The DNA in these cells is haploid i.e., n. When they fertilize, it becomes 2n. This ensures that both parents' genetics are passed on without disturbing the chromosome number. It is essential to note that there is a lot of variation between brothers and sisters as well. This is due to the large variety of genetics available from both parents and their ancestors. All variations are not visible or dominant in the case of a person. They might be visible in one progeny and not in the next. The only case there is a similarity is the case of identical twins. On recombination, the genes from various previous distant relatives weaken.
Same thing happens with animals, too. That's how natural selection happens. Due to a change in the environment, animals with better traits to survive can pass those down to their offspring.
Wave collectors in oceans do which of the following?
A. slow the erosion of coastal areas
B. increase coastal biodiversity
C. convert kinetic energy into electrical energy
D. modify the tides in estuaries
D. modify the tides in estuaries
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Answer:
B.) Made of cells
Explanation:
A cell has three main parts: the cell membrane, the nucleus, and the cytoplasm. The cell membrane surrounds the cell and controls the substances that go into and out of the cell. The nucleus is a structure inside the cell that contains the nucleolus and most of the cell's DNA. It is also where most RNA is made.
what might happen in the ecosystem if the fox was removed
Label the parts of the cell
Answer: The attached image will help you identify the parts of the cell
Explanation:
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Answer:
c
Explanation:
c is the answer .......
Drag each characteristic to the correct category.
Viruses do not possess all the characteristics of life. Identify those characteristics that viruses display and those they don't display.
made up of one or more cells
has a defined boundary
uses energy
exhibits growth and development
possesses internal organization
eliminates waste
Characteristics of Life
Present in Viruses
Characteristics of Life Absent
Viruses
Following are the characteristics that viruses display-
- have a defined boundary
The characteristics that viruses don't display-
- made up of one or more cells
- uses energy
- exhibits growth and development
- possesses internal organization
- eliminates waste
What are viruses?A virus is a submicroscopic infectious entity that can only replicate inside of live cells. All forms are susceptible to virus infection. More than 9,000 virus species have been reported in detail out of the millions of different types of viruses in the environment since Dmitri Ivanovsky's 1892 publication revealing a non-bacterial disease infecting tobacco plants and Martinus Beijerinck's discovery of the tobacco mosaic virus in 1898. The most common kind of living organism, viruses can be found in practically every environment on Earth. Virology is a branch of microbiology that focuses on the study of viruses.
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Where does protein production start and finish 
Answer:
In prokaryotes, it occurs in the cytoplasm. In eukaryotes, it initially occurs in the nucleus to create a transcript (mRNA) of the coding region of the DNA. The transcript leaves the nucleus and reaches the ribosomes for translation into a protein molecule with a specific sequence of amino acids.
Explanation:
What can scientists gain from taking core samples of ice sheets?
Answer:
Core samples are cylindrical pieces of earth that are extracted from the ground in order to study the composition of the earth below the surface.
An ice sheet is a mass of ice that blankets land for thousands of years.
Chemical analysis of core samples for ice sheets can provide information about climate conditions in the past. For example, analysis of the ratios of different isotopes of oxygen can reveal information about past sea surface temperatures.
Explanation:
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Plants receive their nutrients mainly from what
Explanation:
Plants recieve their nutrients mainly from soil because it is soil which contains humus, water and minerals for proper growth of the plant.
Part A. Interpreting Graphs
1. The type of graph that best shows the relationship
between two variables is the line graph. A line
graph has one or more lines connecting a series
of points. See Figure 1. Along the horizontal axis,
or x-axis, you will find the manipulated variable
in the experiment. Along the vertical axis or y-axis,
you will find the responding variable.
Numerical scale
y
Line Graph
Numerical scale
Figure 1
Biology Laboratory Manual A/Laboratory Skills 49 which plant grew the tallest
There are two plants being compared in the graph, the graph B will grew the tallest by the end of third week as being shown in the daigram
In the graph, two variables i.e, Height (in cm) and weeks are being compared. Height is given on the vertical axis or Y -axis and number of weeks is given on the horizontal axis or the X-axis. Here the manipulated variable which is number of weeks is given on the X axis as mentioned in the question and the responding variable which is the height of the plant is given on the Y axis.
After two weeks, Plant A was 7 cm tall, and
It was 9 cm high after three weeks.
After two weeks, Plant B was also 7 cm tall.
It was 10 cm high after three weeks.
Plant A grew on the third week by 9 cm - 7 cm = 2 cm.
Plant A grew the most during the second week, according to (e).
Plant B had the smallest first-week growth (f).
Plants A and B were the same height at the conclusion of the second week.
From the end of the second week to the end of the third week, Plant B expanded by 10 cm- 7 cm, or 3 cm.
So the plant B grew the highest.
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The Diagram was missing in your question please refer to the picture attached to see the Diagram.
Compare the rate of pepsin-catalyzed reaction to ph 3 with the rate of the trypsin-catalyzed reaction at ph 3
When pepsin is in a pH 3 medium it will be active but not in its most active form and trypsin in a pH 3 medium will be inactive since it is at a more acidic pH than it acts.
What is the optimal pH at which these enzymes act?Pepsin will be at a high speed, but not the most optimal since the pH at which it works best is between 1.5-2.5 and at a higher pH it begins to deactivate. While trypsin needs a pH greater than 7.7 to start reacting since this is its optimal pH, then being in a medium with pH 3 it will not reach alkalinity to be able to react
Therefore, we can confirm that when pepsin is in a pH 3 medium it will be active but not in its most active form and trypsin in a pH 3 medium will be inactive since it is at a more acidic pH than it acts.
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Below are the reduction half reactions for chemolithoautotrophic denitrification, where hydrogen is a source of electrons and energy and nitrate is the terminal electron acceptor.
NO3- + 10e- -> N2 (E0 = +0.74 V)
H+ + 2e- -> H2 (E0 = -0.42 V)
If you balance and combine the reactions so that 90 moles of H2 gas are oxidized to H+, how many moles of N2 gas will be produced?
39462 KJ of Gibbs free energy will produce. Number of moles of nitrogen = 90 moles, E0 = 0.74 + ( - 0.42) = 0.74 - 0.42 = 0.32
What is a Balanced chemical equation?A balanced chemical equation has the same number of reactants and products. We can balance a chemical equation by adding a number to adding the same number of molecules on both sides.
In this equation,
10NO3 + 10 e - -> 5N2
4H + 2 e - -> 2H2
In this equation, 5 moles of N2 and 2 moles of Hydrogen are produced.
5 * 0.74 = 3.7 V
2 * ( -0.42) = - 0.84 V
ΔG = -nFΔE,
where F = 96.48 kJ (mol e-)
= 90 * 96.48 * (3.7 + 0.84)
= 90* 96.48* 4.54
= 39462 KJ
Therefore, 39462 KJ of Gibbs free energy will produce. Number of moles of nitrogen = 90 moles, E0 = 0.74 + ( - 0.42) = 0.74 - 0.42 = 0.32.
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What is the Polymer name for unsaturated fat?
When particles are moving in both directions across the membrane at even distribution, what has been reached? A. maximum concentration B. exocytosis C. equilibrium
When particles are moving in both directions across the membrane at even distribution equilibrium has been reached.
So, the correct option is (c).
No, it continues; it maintains equilibrium. A solution containing a certain reactant was saturated to achieve equilibrium, then after a period of time, a radioactive form of the reactant was added to demonstrate the effect. The solution had became radioactive when the radioactive reactant was removed.Particles of a solution will continue to flow over the membrane in both directions even after equilibrium is attained. There is no further change in concentration, though, as nearly identical numbers of particles flow in each direction. When a solute's concentration in a system is, the system has reached equilibrium.Molecule movement continues at equilibrium. Material movement in both directions is equal at equilibrium. A molecule can enter a cell membrane freely if it can.To learn more about equilibrium.
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Which is an example of an adaptation?
A. bald spots on an old cougar
B. new foods found by squirrels
C. viruses passed to humans
D. white hair of adult polar bears
The correct answer is D. White hair of adult polar bears
Explanation:
Adaption refers to a natural process that involves a change in behavior or traits in a species or population to make this more suitable to survive. Indeed, adaptations help an organism to survive in a specific environment or adapt to changes. Besides this, adaptation is the result of processes such as natural selection through which more fit organisms survive and pass fitness traits to new generations.
According to this, the one that is an example of adaptation is the "white hair of adult polar bears" because this phenotype (visible trait) helps polar bears to camouflage in the Artic, in this way, polar bears can avoid possible predators and have more chances to hunt. This means, this trait makes polar bears more suitable to survive and due to this, it is an adaptation.
Question 1 of 25
Which sentence best describes the role of the Calvin cycle in a plant cell?
OA. The cycle regenerates carbon dioxide through carbon fixation.
OB. The cycle causes new organic matter to be added to the body of a
plant.
C. The cycle forms new water molecules by combining oxygen and
hydrogen atoms.
D. The cycle changes one type of organic matter into inorganic
matter.
SUBMIT
A. The cycle regenerates carbοn diοxide thrοugh carbοn fixatiοn. The Calvin cycle is a prοcess in phοtοsynthesis that cοnverts carbοn diοxide intο glucοse.
What is phοtοsynthesis?Phοtοsynthesis is a prοcess by which plants, algae, and certain bacteria cοnvert light energy frοm the sun intο chemical energy. This chemical energy is stοred in the fοrm οf οrganic mοlecules, such as glucοse, which plants use tο fuel their grοwth and develοpment.
Phοtοsynthesis is essential tο all life οn Earth, as it is the main sοurce οf energy fοr all οrganisms. During this prοcess, carbοn diοxide and water are used tο create glucοse and οxygen. The οxygen is released intο the atmοsphere, while the glucοse is used fοr energy.
It is alsο knοwn as the dark reactiοn οr the reductive pentοse phοsphate cycle, and it invοlves the regeneratiοn οf carbοn diοxide frοm οrganic mοlecules. It is the main way in which plants use carbοn diοxide tο make οrganic mοlecules.
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why do the cytoplasmic strands pass nearer to the cell wall than to the sap vacuole
Transport from vacuoles happen through osmosis and diffusion, they lack plasmodesmata required for the passage of cytoplasmic strands.
All cells with a nucleus have cytoplasmic strands, which are spindle-shaped strands. Their major function is to keep the nucleus in place so that it doesn't move from its original position in the cytoplasm. They are additionally known as plamodesmata.When water enters the cell's vacuole but not the nucleus, plant cells experience turgor pressure.Plant cells have channels called plasmodesmata that cross their cell walls to allow for movement and communication. Strands of cytoplasm from a nearby cell communicate through these open channels called plasmodesmata, which are found in plant cell walls.As a result, unlike sap vacuoles which lack communicating channels, cell walls feature plasmodesmata that let cytoplasmic strands move from one cell to another.
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Which of the following chemical reactions represents the Catalase reaction?
Question 3 options:
2H2O2 —--> 2H2O + O2
2H2O + O2 —--> 2H2O2
H2O + O2 —---> H2O2
H2O2 —---> H2O + O2
The chemical reaction that represents the catalase reaction is as follows: 2H₂O₂ —--> 2H₂O + O₂ (option A).
What is the catalase reaction?Catalase is an enzyme found in the liver that catalyses the decomposition of hydrogen peroxide to water and oxygen.
Ideally, a chemical reaction forms products from substances called reactants.
Hydrogen peroxide is a chemical compound that has a chemical formula of H₂O₂ . The decomposition reaction is given as follows:
2H₂O₂ —--> 2H₂O + O₂
Therefore, the chemical reaction that represents the catalase reaction is as follows: 2H₂O₂ —--> 2H₂O + O₂
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Will give brainy. 50 points.
What are the differences of cytokinesis in animal and plant cells?
Karyokinesis, or the partition of a nucleus into two daughter nuclei, comes before cytokinesis. All eukaryotes go through cytokinesis in a manner that is remarkably similar. However, it frequently varies between cells with a cell wall, like plant cells, and cells without a cell wall, like animal cells.
Answer: The main difference is the formation of a new cell wall surrounding the daughter cells.
Explanation:
In a plant cell, a cell plate is formed between the two daughter cells.
In animal cells, a cleavage furrow is formed between the two daughter cells.
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Anatomy and physiology 4 epithelial tissue with labels
Epithelial cells are of different types and are involved in the protection of the body's organs.
The epithelial tissues are important and they are the ones present on the topmost layer of the body and are responsible for the protection of the skin, and also form the lining of the urethra, uterus, etc.
Epithelial cells are divided on the basis of cell shape and it layering and cell shape, they are divided into squamous epithelium, cuboidal epithelium, and columnar epithelium and on the basis of layering, they are divided into simple, stratified, and pseudostratified.
The pseudostratified epithelial cells also have cilia which are hair extensions and they also have unicellular glands called goblet cells which secrete the mucus.
Stratified epithelium differs from simple epithelium because they are multilayered so help in mechanical and chemical support.
Keratinized epithelia are also present which are the upper layers or apical layers having resistant protein called keratin some epithelia also have a lower layer or basal layers due to which these cells also show polarity.
Transitional is helpful in stretching and that's why found in the lining of the urinary bladder.
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How is the energy of waves passed in water?
Answer:
wind produces waves, and then waves produce energy.
Explanation:
So, a water wave transfers energy through the vibration of the water particles. sound waves travel through the vibration of air particles or the particles of a liquid or solid, and. electromagnetic and magnetic fields vibrate to transfer energy through electromagnetic waves.
Click to arrange puzzle pieces. Enter the correct 3 digit code (no spaces)
To begin assembling a challenging problem, group the pieces into groups of edge, corner, and center pieces. To create the foundation, arrange your corner pieces into a sizable square. The puzzle will then resemble a frame when you join the edge pieces to fill in the corners.
Set up a workspace, such as a table or counter, and empty the puzzle box before beginning to put it together. So that you can view the images on the pieces, arrange them all face-side up. Then, begin identifying your edges and categorizing the pieces according to color. You should first locate and assemble the frame using the pieces from the outside.
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what is the formula for Quantum physics
Answer:
E=hν
Explanation:
What does tissue look like in biology
Answer:
In biology, tissue is a biological organizational level between cells and a complete organ.
Explanation:
A tissue is an ensemble of similar cells and their extracellular matrix from the same origin that together carry out a specific function. Organs are then formed by the functional grouping together of multiple tissues.
Think about your favorite food. Explain how the sun played an important role in its growth.
Which major process were needed for the origin of life on earth
PLEASE HELP!!! what is the effect of light on growth of sunflowers? SEE ATTACHED!
Summarize Name the early individuals who had a major impact on the American public’s awareness of the environment and sustainability, and explain their accomplishments.
The first conversation efforts that were by Marsh, the preservation to fully protect the wilderness was Muir, the managing public lands wisely for their natural resources was Roosevelt and Pinchot, the blending of the preservation was Leopold, and the silent spring was Rachel Carson.
Natural resources are the resources that are drawn from the nature and that used with the few modifications. This includes the sources of the valued characteristics such as the commercial and the industrial use, the aesthetic value, the scientific interest and cultural value. the Natural resources that include oil, Rachel Carson. coal, the natural gas, metals, the stone, and sand. Air, sunlight, the soil, and water are other natural resources. Thus, the Natural resources are valuable as they are used to support the life and meet the needs of the people
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Sarah and Michael were visiting their friend Regina. They were in Regina's backyard, enjoying some ice-cold lemonade. They noticed that there were droplets on the outside of the pitcher of lemonade. The 3 friends made the following claims: A. Sarah said, "Those droplets must be lemonade leaking from inside the pitcher." B. Regina said, "The droplets on the outside of the pitcher are water. They came from the air outside the pitcher." C. Michael said, "I agree that the droplets on the outside of the pitcher are water, but the water comes from the melting ice cubes inside the pitcher." Choose the claim that you most agree with. Support the claim with evidence and reasoning based on what you have learned.
Answer:
it b
Explanation:
The water droplets formed on the surface of the lemonade because Regina said, "The droplets on the outside of the pitcher are water." They came from the air outside the pitcher, which is option B.
What are the different forms of water?Water is present in liquid form, but as the temperature rises, it converts into a gas, which is water vapor. This vapor is present in the atmosphere as a gas, but when it comes into contact with the colder surface, which is the outer surface of the lemonade glass, due to the condensation, the vapor converts into the liquid. When the temperature drops further, the water condenses into a solid, which means ice.
Hence, water droplets formed on the surface of the lemonade because Regina said, "The droplets on the outside of the pitcher are water." They came from the air outside the pitcher, which is option B.
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