Answer:
22%
Explanation:
According to Erwin Chargaff in his complementary base pairing rule, a DNA molecule consists of four nucleotide bases that pair with one another in the follow order: Adenine (A) to Thymine (T), and Guanine (G) to Cytosine (C).
According to Chargaff, the amount of Adenine in the DNA equals the amount of Thymine while the amount of Guanine in the DNA equals the amount of Cytosine. The sum of all the bases equals 100%. That is;
A + T + G + C = 100%
In this question, if 28% of the bases in a DNA strand are Guanine, the amount of Cytosine will also be 28%. Hence,
28% + 28% + A + T = 100
56% + A + T = 100
A + T = 100% - 56%
A + T = 44%
Since, A = T
A/T = 44/2
A/T = 22%
Hence, the amount of Thymine in the DNA strand will be 22%
how do bacteria in hydrothermal vents produce food?
A. photosynthesis
B. chemosynthesis
C. osmoosis
D. by respiration
What property of water allows water
to soak up so much CO2 gas?
Answer:Carbonic acid releases hydrogen ions, which combine with carbonate in seawater to form bicarbonate, a form of carbon that doesn't escape the ocean easily. As we burn fossil fuels and atmospheric carbon dioxide levels go up, the ocean absorbs more carbon dioxide to stay in balance.
Explanation:
please help will mark brailiest!!
Answer:
active transport through protein channels
Explanation:
im pretty sure
I need help on this question please!
Explanation:
single stranded
where do convection currents occur.
A. in areas with the same temperature.
B. in areas with the same altitude.
C. in areas with different air pressures
D. in areas with different cloud types.
Answer:
the answer is C-in areas with different air pressures
Explanation:
Convection occurs when particles with a lot of heat energy in a liquid or gas move and take the place of particles with less heat energy. Heat energy is transferred from hot places to cooler places by convection. Liquids and gases expand when they are heated.
Answer:C. in areas with different air pressures
Explanation:
Where does the carbohydrate reside ? Where is it found in cells ? What types of food is it found in ?
To obtain the energy needed for life processes, plants break down(blank)
of
to release stored chemical energy through the process of (blank)
А.
water photosynthesis
B
sugar respiration
С
sugar photosynthesis
D
water respiration
The mechanism by which plants convert carbon dioxide, water, and sunshine into oxygen and sugar-based energy is known as Photosynthesis.
What steps are involved in a plant's photosynthesis?Green plants and various other organisms convert light into chemical energy through a process called photosynthesis. Light energy is gathered and utilised during photosynthesis in green plants to change waters, carbon dioxide, and minerals into oxygen- and energy-rich organic molecules.
What makes photosynthesis so crucial?The significance of photosynthesis Solar or radiant energy is converted into chemical energy during photosynthesis. The production of agricultural crops is directly impacted by the rate of photosynthesis. All living things require oxygen, which it provides for the atmosphere. It keeps the ecosystem's carbon dioxide and oxygen levels in check.
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which of the following correctly describes a reaction that forms a disaccharide from two monosaccharides?
Answer Options:
a. glycogen + fructose = maltose
b. galactose + glucose = lactose
c. glucose + sucrose = fructose
d. maltose + lactose = cellulose
Answer:
b. galactose + glucose = lactose
Explanation:
Monosaccharides are single units. Disaccharides are molecules of two monosaccharides joined together.
Examples of monosaccharides include glucose, fructose, and galactose.
Examples of disaccharides include lactose, maltose, and sucrose.
The only example that shows this is b.
What class is the sting ray in?
Answer:
Cartilaginous fishes
Explanation:
Answer:
math lol what he said so yah
ALOT OF POINTS
what are some pros and cons of fire suppression?
Answer:
It is good because it keeps the fire under control but is bad because of pollution and it is harder to see.
Explanation:
Which cell has the GREATEST surface area to volume ratio?
O Chicken egg
O Skin cell
O Bacterial cell
O Liver cell
The cell with the greatest surface area to volume ratio is the smallest cell, in this case, the bacterial cell.
As a cell increases in size, the proportional increase in volume is higher than that of its surface area. This tells us that the bigger a cell becomes, the lower its surface area to volume ratio will be.
The chicken egg is just one large cell, the largest cell produced by most animals. The skin and liver cells are much smaller, measuring roughly 25-30 micrometers. However, the smallest of the list by far is the bacterial cell, measuring a mere 1-3 microns. This size tells us that the greatest surface area to volume ratio belongs to the bacterial cell.
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state the doctorine of original evolution.
Answer:
because it is life
Explanation:
Identify the phase of mitosis described in each step, and then put the steps in the correct order.
EASY 7TH GRADE SCIENCE QUESTION FIRST PERSON BRAINLIEST!!!!!
A. Velocity varies with the compass direction of motion
B. Measurement error causes multiple observations of motion to conflict
C. All motion is relative to the frame of reference chosen for measurement
D. Acceleration and velocity have different values because they are different measures of motion
Answer:
C. All motion is relative to the frame of reference chosen for measurement
Explanation:
why are some planets harder to see than others planets in the solar system
Answer:
Because they are farther away
Explanation:
Use the results of Demetri's experiment to explain why the color changed on some test strips but not others.
Answer:
It did this because some of the soultions didnt have glucose.
Explanation:
Please help part 1. I have another paper
Choose the description that best matches the labeled part of the ear.
Answer:
The second to last
Explanation:
The longitudinal sound waves enter the ear canal.
please help me, i dont like this :(
Answer:
This is false.
Explanation:
Plants are eukaryotes, meaning they contain a nucleus in their cells. Prokaryotes, such as bacteria, do not contain a nucleus, and their genetic material, better known as DNA, floats about freely in their cytoplasm.
A jumbo jet has more gravity acting on it than a single engine plane.
true or false
Answer:
true
Explanation:
do all planets move in the same way and the same speed
Answer:
no
the speed is affected by the mass of the planets and venus moves in the opposite direction to the other plants
Which molecule has the most energy?
a. carbon dioxide
b. ATP
C. oxygen
d. glucose
Answer:
D glucose
Explanation:
the original molecule at the beginning of the pathway would have the highest amount of free energy.
The nitrogen, oxygen, and other gases surrounding Earth
A.are pulled toward Earth by gravity
B.are found mainly near the outer edge of the atmosphere
C.exert pressure only at sea level
D. exert pressure that works against atmospheric pressure
Answer:
option A is correct
Explanation:
What could be the reason that Jesse cannot lose weight, despite help from his friends?
a) He may have a high set point.
b) His pituitary could be overactive.
c) He may have a high RAS.
d) None of these
Answer:
a) He may have a high set point.
Explanation:
Which of the different levels of classification is the most specific?
A. species
B. genus
C. domain
D. class
Answer:
A. Species
Explanation:
Species is the most specific level of classification in taxonomy.
One mnemonic that can be used to remember the order of ranks is:
Dear King Philip Came Over For Good Soup
This stands for domain, kingdom, phylum, class, order, family, genus, species.
And, this is in order of the most broad to the most specific rank.
So, A is the correct answer.
Answer:
the Answer is A
Explanation:
because is you look up the classification levels you will see species is the smallest
What makes petroleum a nonrenewable resource?
O A. When burned, it adds pollutants to the air.
O B. It takes millions of years to form.
O c. It can be replenished within a person's lifetime.
D. When burned, it contributes to global warming.
Help me please this is my last question
Answer:
Inflammation
Explanation:
Innate Response:
"The innate immune system is the body's first line of defense against germs entering the body. It responds in the same way to all germs and foreign substances, which is why it is sometimes referred to as the "nonspecific" immune system. It acts very quickly: For instance, it makes sure that bacteria that have entered the skin through a small wound are detected and destroyed on the spot within a few hours. The innate immune system has only limited power to stop germs from spreading, though. The innate immune system consists of: Protection offered by the skin and mucous membranes AND Protection offered by the immune system cells (defense cells) and proteins."
Acquired Response:
"The adaptive immune system takes over if the innate immune system is not able to destroy the germs. It specifically targets the type of germ that is causing the infection. But to do that it first needs to identify the germ. This means that it is slower to respond than the innate immune system, but when it does it is more accurate. It also has the advantage of being able to "remember" germs, so the next time a known germ is encountered, the adaptive immune system can respond faster. The adaptive immune system is made up of: T lymphocytes in the tissue between the body's cells AND B lymphocytes, also found in the tissue between the body's cells AND Antibodies in the blood and other bodily fluids."
I'm sure it's Inflammation, so here is the definition for that:
"Inflammation refers to your body's process of fighting against things that harm it, such as infections, injuries, and toxins, in an attempt to heal itself. When something damages your cells, your body releases chemicals that trigger a response from your immune system."
I hope this helped! Enjoy the rest of your day!
what do chemical reactions do
Answer:
A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.
Explanation:
What term describes the strings of ribosomes that are attached to an RNA transcript at one time?
A. release factors
B. spliceosomes
C. transcription factors
D. mutagens
E. polyribosomes
Answer:
Polyribosomes.
Explanation:
During translation, the subunits of a ribosome surround the transcript and read down stream until they reach the start codon and begin polypeptide synthesis. Once the start codon is exposed, it is available for another ribosome to form around it, thereby initiating another locale for translation. Together the strings of ribosomes are called polyribosomes.
Once blood delivers oxygen, what does it pick up from cells on its way back to the heart?
nutrients
nitrogen
carbon dioxide
Answer:
Your answer is C) Carbon Dioxide.
Answer:
I'm fairly sure its carbon dioxide .