Answer:
Litmus paper is a tool used to test whether a substance is an acid or base. When a substance is dissolved in water, the resulting solution causes the litmus paper to change color. The acidity or alkalinity of a solution is determined by the concentration of hydrogen ions, or power of hydrogen, expressed as a pH value.
(I think this is right I'm not totally sure.)
This contains chromosomes, genes, and DNA. *
A. Nucleus
B. Cell
C. Membrane
D. Vacuoles
Answer:
cell
Explanation:
because I know this stuff
Chromosomes, which are shaped like threads and house the DNA molecule in each cell, are found in the nucleus. The DNA that makes up each chromosome is tightly coiled around histone proteins several times to support its shape. Thus, option A is correct.
What are the important composition of nucleus?The chromosomes in the cell nucleus and mitochondria contain DNA (deoxyribonucleic acid), which is the genetic material of the cell.
With the exception of certain cells, every cell's nucleus contains 23 pairs of chromosomes (such as sperm and egg cells and red blood cells). One chromosome has a large number of genes.
DNA composition. The most of DNA is located in the nucleus of a cell, where it is organized into chromosomes. Chromosomes contain histone proteins, which attach to DNA. When two strands of DNA are twisted together, they take the shape of a helix.
Therefore, the Nucleus contains chromosomes, genes, and DNA.
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which level will tell you the most similarities in an organism?
What kind of organism might use cell division as a form of reproduction.
Answer:
multicellular organisms
Explanation:
Answer:
yes multicellular organisms
Thread-like structures that are found in the nucleus of a cell that contains all DNA. *
A. DNA
B. Genes
C. Chromosomes
D. Nucleus
Answer:
chromosomes
Explanation:
Thread-like structures that are found in the nucleus of a cell that contains all DNA. Each chromosome is made of protein and a single molecule of DNA. Human cell nucleus contains 46 chromosomes or 23 pairs. Half of these chromosomes come from one parent and half come from the other parent.
What are some factors that affect an element’s reactivity?
Answer:
Four major factors affect reactivity of metals: nuclear charge, atomic radius, shielding effect and sublevel arrangement (of electrons). Metal reactivity relates to ability to lose electrons (oxidize), form basic hydroxides, form ionic compounds with non-metals.
Explanation:
ASAP I NEED THIS NOW!!!!!!!
Planet A Planet B Planet C Distance from Sun 0.718 AU 1 AU 5.20 AU Mass 4.8676 × 1024 kg 5.9726 × 1024 kg 1,898.3 × 1024 kg Planet Composition rocky mantle, iron core rocky mantle, iron core hydrogen, helium Gases in Atmosphere 96% carbon dioxide, 3% nitrogen, 1% other 78% nitrogen, 21% oxygen, 1% other mostly hydrogen and helium Atmospheric Pressure on Planet’s Surface 92 bars 1 bar > 1,000 bars Average Temperature 464°C 15°C -108°C Part A Which of these planets is Earth? Explain your answer.
These contain the specific instructions that make each type of living creature unique. *
A. DNA
B. Genes
C. Chromosomes
D. Nucleus
Answer:
Either A. DNA or B. Genes
What is the Author’s message in the Passage?
D. People should save water.
E. Water will soon be limited.
F. We need to use more water.
Answer:
D.
Explanation:
In the passage, the Author lists many ways that you can conserve or save water.
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why do large food molecules like complex carbohydrates seem to disappear in the digestive system?
What is the selective pressure
Answer:
If i have permission to make a pun here is a good time to do that....................wait you wan't to hear it..................okay here is the joke...........ItS a PrEsSuRe yOu CaN cHoOsE
(sorry if you didn't need this nonsense)
Consider a large group of seedlings growing beneath an oak tree. Why would they compete for space?
Answer:
for growth
Explanation:
just think about it
Why do cats meow? (Brainliest if right, if both answers are right the first one will get it)
A. to get the attention of hooman
B. to get the attention of other cats
C. to scare off doggos
D. "This is MY territory! Back off!"
E. They do it for no reason
Transverse and longitudinal waves can combine. Describe what kind of wave is formed and how matter moves as the wave passes through.
plz help lol
Answer:
surface wave!
Explanation:
hope this helps you!
What arguments would you use to convince people they should conserve water? What are two suggestions you would make about ways to conserve water?
pleasee choose the correct answer
Answer:
Between mars and Jupiter
Explanation:
between mars and jupiter is where the astriod belt is located. (between the rock and gas planets)
How can I do this? Thanks! I am really confused :/
A bird is flying at 10 miles per hour east: Speed = 10 miles per hour, velocity = 10mph in eastward direction, Acceleration = 0 m/s².
What is speed, velocity and acceleration?Speed is the rate at which an object covers distance; Velocity is the rate at which an object changes its position in a particular direction and Acceleration is the rate at which an object changes its velocity over time.
(1) Speed = 10 miles per hour
Velocity = 10mph in eastward direction
Acceleration = 0 m/s²
(2) Speed = The car's speed when traveling at 50 miles per hour is 50 miles per hour. When the car slows down to 20 miles per hour, its speed becomes 20 miles per hour.
Velocity = initial velocity is 50 miles per hour in the direction of travel. When it slows down to 20 miles per hour, its velocity becomes 20 miles per hour in the same direction.
Acceleration = Acceleration = (20 miles per hour - 50 miles per hour) / 10 seconds
= -3 miles per hour per second
(3) Speed = 2 feet per second
Velocity = Cannot determine
Acceleration = Cannot determine
(4) The distance traveled in a given time is known as "displacement"
(5) Speed = 2 meters per second east.
Velocity = 2 meters per second north
Acceleration = zero
(6) Speed = 5 meters per minute.
Velocity = 5 meters per minute east
Acceleration = cannot determine
(7) Speed = 70 miles per hour
Velocity = 70 miles per hour (North)
Acceleration = cannot determine
(8) Speed = 1/3 miles per hour
Velocity = 1/3 miles per hour
Acceleration = 0 miles per hour per hour
(9) Speed = Cannot be determined
Velocity = Cannot be determined
Acceleration = Cannot be determined
(10) Speed = 3 meters per second
Velocity = 3 meters per second
Acceleration = 0 meters per second per second (since light always travels at a constant speed and does not accelerate)
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As a result of a mutation, the DNA sequence AGT - TGA - CAT changes to AAT - TGA - CAT.
Which best describes the mutation?
It is a substitution in which the DNA base, G, was replaced with a different DNA base, A.
It is a deletion in which the DNA base, G, was replaced with a different DNA base, A.
It is a substitution in which three DNA bases, AGT, were replaced with three different DNA bases, AAT.
It is a deletion in which three DNA bases, AGT, were replaced with three different DNA bases, AAT.
Answer:
It is a substitution in which the DNA base, G, was replaced with a different DNA base, A.
Explanation:
Sorry for just now answering this for you. Hope This Helps!
can someone give me an example on how to write dichotomous keys please
Answer:
"For example, in tree identification, a dichotomous key might ask whether the tree has leaves or needles. The key then directs the user down one list of questions if the tree has leaves, and a different question list if it has needles."
Explanation:
What type of acid is used in automobile batteries? How does this acid cause a battery to work?
Help me please
With 6th grade science
help What characteristic do all organic compounds have in common?
Answer:
All organic compounds contain carbon.
Explanation:
we doing the same thing and this was the possible answer.
Answer:
1. They all contain carbon.
2. Most of them are flammable.
3. They are all soluble in non-polar solvents.
4. They are most, if not all, are covalently bonded molecules.
Explanation:
i need help with this please help me!!!!!
compare how plant and animal cells to direct cell activity and make needed materials.
When animals eat plants it works thru the body
Which of the earth systems does NOT transfer energy through convention cells
pleasee fill in the blanks
What led scientists to discover cells and cell theory?
The invention and improvement of microscopes.
Eyeglasses led to the discovery of cells.
The invention of the internet.
The invention of satellites.
Answer:
The invention and improvement of microscopes.
Explanation:
The internet and stellites were not invented until after this, eyeglasses were invented but they could not see things that small
1. What factors shaped the cliffs of Victoria, Australia over time?
2. How do you know a rock has been or is being weathered?
3. How are weathering and erosion different?
When is the speed equal to 0.0 km/hr?
A.between hour 1 and 2
B. between hour 2 and 3
C. between hour 3 and 4
D. between hour 4 and 5
Answer:
its B
Explanation:
How does an adult sponge asexually reproduce?
Answer:
Sponges are able to reproduce both sexually
Using gametes and asexually by budding
Explanation:
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