Answer:
what is the question. ??
Answer:
Experiment to demonstrate diffusionmaterials:a 250cm³ glass beaker,a long tube,a holed rubber bung or stopper,a colored crystal such as potassium permanganate and water.method: set up the experimentfirst insert one end of the tube halfway into the rubber stopper place the rubber stopper and glass tube into the beaker, keeping the rubber firmly pressed to the bottomintroduce the colored crystal of potassium permanganate down the tubeclose the open end of the glass tube with a finger and fill the beaker halfway with waterwith one end of the glass tube still closed,gently lift the glass tube and rubber stopper out of the beaker without disturbing the crystalobserve what happens in the beaker until there are no further changesobservation: at the beginning,the clear water and colored crystal are each clearly visibleafter sometime,the color of the crystal starts spreading out of the water still remains cleareventually,all the water is evenly colored by the color of the crystalconclusionthe particles spread out in the water by the process of diffusion.I hope this helps
What season comes before spring
Answer:
Winter season comes before spring
what are 3 characteristics that adenoviruses, tv virus, and papilloma viruses have in common
Answer:
The three characteristics that adenoviruses, T7 viruses and papillomaviruses have in common include the following:
1. The three types of viruses possess icosahedral structures.
2. The viruses possess DNA.
3. Their DNA is double stranded.
Adenoviruses are naked (non enveloped) icosahedral nucleocapsid viruses, which has double stranded DNA genome. They are specific to vertebrate hosts and cause different types of diseases. T7 virus is a bacteriophage that infect bacterial cells. Most strain of E.coli are susceptible to this virus. Humanpapilloma viruses are small,naked icosahedral viruses which infect higher vertebrates.
plzzzzzzzzz. helppppp...
Answer:
Retina: membrane at the back of the eye that changes light into nerve signals.
lens focuses light rays onto the retina
Please help me, I’m desperate.
Write a micro-theme (a short 100-300 word essay) on the importance of the study of biology.
Match the features plates with their corresponding plate boundaries.
Answer:
please see picture for answer
Name the water-conducting tissue into which the two probes were inserted...
Answer:
Tracheids and vessels are two water conducting hollow tubes present in the vascular tissue called is xylem. Xylem in a plant is responsible for transporting water from the roots to other parts of the plant.
Xylem is the water-conducting tissue into which the two probes were inserted in the diagram shown.
What is Xylem?This is a vascular tissue found in plants which convey water and nutrients from the root to other parts for its survival.
Tracheids and vessels are the two water conducting hollow tubes present in the xylem.
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what is science in societal perspective
Explanation:
.In societal perspective science is called as influences society through its knowledge and world view. Scientific knowledge and the procedures used by scientists influence the way many individuals in society think about themselves, others, and the environment.
HOPE IT'S HELPFUL FOR U MATE
The nuclear lamina is an array of filaments on the inner side of the nuclear membrane. If a method were found that could cause the lamina to fall into disarray, what would you most likely expect to be the immediate consequence
Answer:
The nuclear lamina is an array of filaments on the inner side of the nuclear ... If a method were found that could cause the lamina to fall into disarray, ...
Explanation:
1. The nuclear lamina is a network inside the nucleus which maintain the shape of nucleus.
2. It is composed of intermediate filaments and many proteins.
3. It providing mechanical support to the nucleus and play many other rolls in the cell.
4. In a cell if the nuclear lamina fall into disarray, the nucleus is misshapen and all these processes run awry. Such cells in which nuclear lamina is broken, they tend to become senescent in response to internal dysfunction, and cause damage to surrounding tissue.
Amoeba sisters:video recap biomolecules
Which of the following is the only safe way to observe the Sun without the use of a telescope and a solar filter?
Indirectly by projecting the image onto a surface.
Directly while wearing your sunglasses.
Directly with your naked eye as long as you don’t look at it too long.
Directly through a magnifying glass.
Answer:
indirectly by projecting an image
Explanation:
the gamma rays and radiation from the sun would damage your I while looking at the sun. however since the sun is a projected image it won't produce harmful gamma rays and radiation.
7. Explain why there is a difference in the amount of oxygen taken in at rest and during the vigorous activity, (2
Answer:
Physical exercise leads to an increase in the arteriovenous oxygen difference in all individuals. As exercise intensities increase, the muscles increase the amount of oxygen they extract from the blood, and this therefore results in further increases in a-vO2 diff.
Explanation:
There is a difference in the amount of oxygen intake during rest and vigorous activity due to the higher amount of energy required during vigorous activity.
What is aerobic respiration?The breakdown of glucose in the presence of oxygen to generate carbon dioxide water and energy in the form of ATP and heat energy is called aerobic respiration.
Aerobic respiration is a characteristic of higher animals because of a higher level of energy required by them. The process of aerobic respiration produces higher levels of energy compared to the process of anaerobic respiration which is a characteristic of lower organisms.
When a person is performing a vigorous activity, the energy requirement increases. This increases the process of cellular respiration which requires oxygen.
Therefore, when a person is performing vigorous activity their oxygen intake is higher compared to when they are at rest.
Read more about aerobic respiration, here
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On a graph, the vertical axis is
the y-axis and the horizontal
axis is the x-axis. Onəwhat axis
should the INDEPENDENT
VARIABLE be placed?
A
on the vertical or y-axis
B
on the horizontal or x-axis
Answer:
x-axis
Explanation:
you control those values/variables
On a cartesian plane, the independent variable belongs on the x-axis.
What are coordinates?A pair of numbers called coordinates are used to locate a point or a form in a two-dimensional plane. The x-coordinate and the y-coordinate are two numbers that define a point's location on a 2D plane.
The independent variable is the variable that is being manipulated or controlled in an experiment, and its values are typically plotted along the horizontal or x-axis.
The dependent variable, which is the variable being measured or observed in response to changes in the independent variable, is usually plotted on the vertical or y-axis.
This convention allows us to easily visualize and analyze the relationship between the two variables.
therefore, The independent variable belongs on the x-axis (horizontal line) of the graph and the dependent variable belongs on the y-axis (vertical line). The x and y axes cross at a point referred to as the origin, where the coordinates are (0,0).
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Easy question :D
What are 3 facts about a alligator?
hehe
Explanation:
1:Alligators eat their young. ...
2:An alligator's stomach can dissolve bones. ...
3:Alligators have antibiotic blood.
different between annual plant and Biennial plants
hii I am . here are u or not
What is the difference between genus and species?
Answer:
The genus is the generic name where the species is the specific name in a binomial nomenclature.
Why must an mRNA copy be made for Protein Synthesis?
A. Ribosomes cannot read DNA, only RNA.
B. DNA is too degenerate to use without mRNA.
C. DNA must stay inside the nucleus.
D. Ribosomes are too big to enter the nucleus.
Which is an example of molecules
that can fit through the small
spaces of the cell membrane?
A. glucose
B. oxygen
C. amino acids
D. fats
Explanation:
Oxygen is the answer. (option B)
Which of the following phrases best describes a solvent?
A) can be dissolved by the solute
B) has a high concentration of solutes
C) usually a sugar or protein
D) present in a greater concentration that solutes
A solvent is a substance present in a greater concentration than solutes (Option D).
A solvent is a substance (usually a liquid) that dissolves another substance/s in order to form a solution.The solvent has the ability to dissolve other substances present in the solution that are referred to as solutes.Some of the most common solvents include water, ethanol and methanol.In conclusion, a solvent is a substance present in a greater concentration than solutes (Option D is correct).
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Which would be least helpful in reducing indoor pollution?
Answer:
A fan probably would be least helpful because it would spread the dust, hair etc, around rather than removing it.
Explanation:
1. Your friend needs quick energy! What kind of biomoleciste should he eat a lot of? 2. Why? Be specific, what do your cells do with this biomolecule that would help him run? 3. Name two kinds of foods have high amounts of this biomolecule.
Nuclear fusion produces _____________ nuclei.
Answer:
it produces heavier nucleus.
Explanation:
in nuclear fusion two light nuclei fuse together to form a heavier nucleus.
HELP THIS IS 100 POINTS
In a scientific experiment, the one variable that is purposely changed to
test a hypothesis is called the:
the manipulated variable (also called the independent variable)
Mr. Doe wanted to perform an experiment to determine if doing a class review before a test would increase test scores. Mr. Doe normally does not review. To perform this experiment, Mr. Doe reviewed material with 2nd period before a test and did not review with 3rd period. After grading papers, he found that 2nd period had an average grade of 93 and 3rd period had an average grade of 72. He determined that reviewing before a test might increase test scores. 2. Which of the following is the control group?
Answer:
3rd Period
Explanation:
2nd period reviewed material with Mr. Doe
3rd period did NOT reviewed material with Mr. Doe
Experimental group is the group being affected.
Control group is the group not being affected.
Based on this image of a
container with a
selectively permeable
membrane, which way
will the water move if the
solute concentration is
higher on the left than
the right?
A. Water will move from right to left
to get the concentration of solutes
at equilibrium.
B. Water will move from left to right
to get the concentration of solutes
at equilibrium
C. The water will not move because
equilibrium is not necessary.
Answer:
(A):Water will move from right to left to get the concentration of solute at equillibrium.
You are building a birdhouse when you cut your finger. Predict which body systems would be immediately involved with your
reaction to the cut.
Answer:
A.
Explanation:
These systems will be involved!
Hope this helps, have a great day.
The nervous system, circulatory system, and integumentary system are body systems involved immediately when you cut a finger.
The integumentary system is the system that groups the natural covering of an organism, for example:
SkinBarkShellThe nervous system is in charge of electrical signals. These signals are those produced by the senses such as taste, smell, sight. Also, they are responsible for sending signals of pain, satisfaction, pleasure, and others to the brain.
The circulatory system is the system in which blood is transported throughout the body for oxygenating and energizing the entire body.
When someone cuts themselves they feel pain (nervous system), blood comes out (circulatory system) and their skin opens and some of its lower layers (integumentary system) can be seen. Therefore, the correct answer is A.
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What about cellulose makes it ideal for structural support?
Explanation:
Cellulose is ideal as a structural material which give its fibers give strength and toughness to a plant's leaves, roots, and stems.
if my answer helps you than mark me as brainliest
explain the working method of tongue
Explanation:
Chewing, grinding, pressing, salivating
When we chew, the tongue and the cheeks work together to constantly move the food between the teeth so that it can be chewed. The tongue presses the crushed food against the palate and moves this bolus, which is then ready to be swallowed, to the throat.
what does social comparison theory propose?
That people have an innate drive to evaluate themselves, often in comparison to others.
List all the ways you can think of that carbon passes from the biosphere to the lithosphere
Answer:
Carbon is stored on our planet in the following major sinks (1) as organic molecules in living and dead organisms found in the biosphere; (2) as the gas carbon dioxide in the atmosphere; (3) as organic matter in soils;
HELP////What is the purpose of an enzyme?
A. To decrease the activation energy of a reaction to make it occur more slowly.
B. To increase the activation energy of a reaction to make it occur more slowly.
C. To decrease the activation energy of a reaction to make it occur more quickly.
D. To increase the activation energy of a reaction to make it occur more quickly.
Answer:
Una enzima es un catalizador biológico. ... El objetivo de un catalizador es aumentar la velocidad con que ocurre una reacción. Hay muchas, muchas enzimas que son codificadas por el genoma para producir proteínas o ARN que aceleran las reacciones químicas y hacen varios miles de funciones diferentes dentro de una célula.
Explanation:
L -- A
Answer:
To increase the activation energy of a reaction to make it occur more quickly.
Explanation:
Enzymes create chemical reactions in the body. They actually speed up the rate of a chemical reaction to help support life. The enzymes in your body help to perform very important tasks. These include building muscle, destroying toxins, and breaking down food particles during digestion.
