Answer:
28% Thymine
Explanation:
DNA molecule is made up of four nucleotides namely: Adenine (A), Thymine (T), Cytosine (C), and Guanine (G). These nucleotides make up the DNA molecule unevenly, however, according to Chargaff in his rule, he stated that the amount of Adenine&Thymine, Guanine& Cytosine in a DNA must be equal, which must all equate to 100% i.e. (A = T) + (G = C) = 100%
Based on this Chargaff's rule, if a DNA sample is analyzed and found to contain 22% of cytosine. This means that the amount of Guanine in that DNA sample must also be 22%.
Therefore; 22% C + 22% G = 44%
100 - 44 = 56%. This means that Adenine and Thymine will share this 56% among each other i.e. 56/2 = 28% Adenine and 28% Thymine.
The diagram shows the life cycle of a fern. HELP ASAP!!!!
What does stage 3 show?
A) A mature spore-producing fern plant has fonds and produces spores.
B) A spore grows into a mature gamete-producing plant.
C) A zygote forms when a sperm fertilizes an egg cell
D) A gamete-producing fern plant is flat and shaped like a heart.
Answer:
D
Explanation:
Answer:
d
Explanation:
ap3x
Normally, arteries are depicted in red and veins are depicted in blue. The pulmonary arteries are colored ______________________________ because they contain ______________________________ blood that flows to the lungs to pick up ______________________________ and unload ______________________________. The pulmonary arteries exit the heart from the ______________________________ (chamber). The pulmonary veins are colored ______________________________ because they carry freshly ______________________________ blood back to the ______________________________ (chamber) of the heart.
Answer:Normally, arteries are depicted in red and veins are depicted in blue. The pulmonary arteries are colored BLUE because they contain DEOXYGENATED blood that flows to the lungs to pick up OXYGEN and unload CARBONDIOXIDE. The pulmonary arteries exit the heart from the RIGHT VENTRICLE (chamber). The pulmonary veins are colored RED because they carry freshly OXYGENATED blood back to the LEFT ATRIUM (chamber) of the heart.
Explanation:
The circulatory system ensures a continuous flow of blood to all body cells. The heart is a muscular organ that is divided into four chambers which includes the right atrium, left atrium, right ventricle and the left ventricle.
The heart pumps blood into vessels that vary in structure, size and function and there are several types which includes:
--> arteries
--> arterioles
--> capillaries,
--> venules and veins.
The ARTERIES are the blood vessels that transport blood away from the heart. They are normally depicted in red because they carry oxygenated blood with the exception of the PULMONARY ARTERY which carries deoxygenated blood to the lungs.
The VEINS are blood vessels that return blood to the heart. They are normally depicted in blue with the exception of the PULMONARY VEIN because they carry deoxygenated blood from the lungs to the heart.
What would a person drilling a well most likely reach immediately after drilling through the unsaturated zone
Answer:
C. the water table
Explanation:
edge 2021 :)
brainliest plz ;))
Which of the following do most
living things use carbohydrates
for?
A. water
B. sunlight absorption
C. energy
D. DNA replication
Answer:
c
Explanation:
carbs are known for energy production! let me know if you got the answe right
URGENT PLZ ANSWER
Natural selection would be possible in a population of clones (all organisms are genetically identical).
A) True
B) False
Photosynthesis vs Cellular Respiration differences and similarities
1
6
What are the similarities and differences between photosynthesis and cellular respiration?
Recovering from an attack is no easy task.
Monica Lopez
Answered September 19, 2016
How is photosynthesis similar to cellular respiration? How do they differ?
Similarities Between Photosynthesis And Cellular Respiration
Similarities ...
→ Both involve in production of energy
→ Both involve the exchange of gases
→ Both the process takes place in cell organelle which was considered as endosymbiotic organism. They are chloroplast and Mitochondria, Photosynthesis takes place in Chloroplast where as respiration takes place in mitochondria.
→ At critical condition both have alternate pathway.
Differences...
→Photosynthesis takes place in chloroplast, where as respiration takes place in mitochondria.
→Photosynthesis involve production of carbohydrate and respiration involve breaking of carbohydrate.
→ Photosynthesis occur only during presence of sunlight where as respiration occurs all the time.
→ In photosynthesis process Oxygen is released where as in respiration Oxygen is utilised.
These are the main differences between Photosynthesis and respiration.
pls help i really need it
Answer:
the awnser is b chickens live up to 18 months with there head cut off
Explanation:
the rate of cell division(how often cells divide)?
A is the same for all cells
B is different depending on the type of cell and /or the conditions the cells is in.
C is different depending on the type of cell
D is the same for most cells except for sperm and egg cells.
Answer:
i dont know
Explanation:
What will happen if you plant a bean seed upside down?
The roots will not grow, and the seeds will die.
The roots will grow up, and the plant will die.
The roots will change to stems, and the stems will change to roots.
The roots will still grow down.
Answer:The roots will still go down.
Explanation:As they can sense gravity, the plant would just grow normally.
If you plant a bean seed upside down, the roots will still grow down.
The correct option is D, The roots will still grow down.
What is a bean seed?A bean seed can be of any bean plant.
The seed that is planted knows its gravity.
The roots always grow with gravity, downwards side.
Whether you plant the seed upward or downward, the roots will always go downwards, and the plant goes upward.
Thus, the correct option is D.
Learn more about bean seed
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PLEASE HELP!!!
What are sections of a DNA molecule called ? Genes
Proteins
Amino acids Carbohydrates
Explanation:
Genes
..................
Which of the following processes includes all of the others?
Select one:
a. Passive transport
b. Osmosis
c. Facilitated diffusion
d. Diffusion
Diffusion is described as the flow of individual molecules through a semipermeable barrier from a region of higher concentration to a region of lower concentration. Therefore (D) is the correct option.
Diffusion is the flow of molecules down the concentration gradient. Various types of diffusions are :
name the three major parts of a cell and their functions
Answer:
cell membrane cytoplasm nucleus
Explanation:
cell membrane controls what goes inside and out the cell
cytoplasm is where chemical reactions happen
nucleus contains genetic information and controls what happens inside the cell
According to cell theory, all new
cells...
A. must share DNA with existing cells.
B. must eat.
C. come from other cells.
Answer:
C. come from other cells.
Explanation:
Who was credited with the discovery of the virus?
Answer:
Dmitri Ivanosky in 1892
Explanation:
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Read the passage below and answer the question that follows.
Jake is continually laughing at other co-workers when they express feelings of frustration about work. He often sits by
himself and ignores requests for assistance when others ask him to help. Jake also does not participate in any work-
related extracurricular activities.
personality disorder.
Based on this information, Jake most likely has
A. avoidant
B. borderline
C. Schizoid
D narcissistic
Since Jake also does not participate in any work-related extracurricular activities so he has option d. narcissistic
What is narcissistic disorder?It is a personality disorder that refers to a mental condition where they have trouble in the relationship, also it has the lack of empathy for the other people.
Also, in the given situation, he ignored the request for the assistance.
So based on this, we can say that the option d is correct.
Learn more about disorder here: https://brainly.com/question/12266927
3. All of the following are true of fresh vegetables EXCEPT
they spoil quickly.
they are very nutritious.
they are cheapest when in season.
they keep as long as canned vegetables.
they are vert nutritious
Do food chains and food webs show the pathway that energy travel through an ecosystem?
Answer:
Yes
Explanation:
Yes, because everytime an animal eats another animal or plant the energy that was inside that plant or animal transfers to the consumer.
6. When an action potential reaches an axon's terminal it will
a. Trigger the release of neurotransmitters into the cleft
b. Cause voltage gated ion channels to open on the postsynaptic cell
c. Cause ligand-gated ion channels to open on the presynaptic neuron
Answer:
Cause voltage gated ion channels to open on the postsynaptic cell
Explanation:
Brainliest
Light reactions occur inside of the thylakiod membranes and they produce oxygen, ATP, and NADP
True
False
Which refers to the vascular tissue that carries water and nutrients from the roots up the plant?
Answer:
nothing
Explanation:anyways the x value is on your teachers but
All cells come from existing cells. On top of that, they all have a cell membrane surrounding the _____ and most plants and bacterium have a cell wall.
Whats the missing word?
A. DNA
B. Cytoplasm
C. Mitochondrion
Answer:
b
Explanation:
cytoplasm
hope this helps and is right :)
All cells have a cell membrane surrounding their cytoplasms.
What are cell membranes?They are organelles of cells that surrounds the cytoplasm.
They delimit cells and act as a selectively permeable membrane that allows the passage of some materials in and out of the cell and limits the passage of others.
Cell membrane composition varies depending on the type of cell.
More on cell membranes can be found here: https://brainly.com/question/13524386
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Oxygenated blood returns to the heart from the lungs via four pulmonary ____.
a. arteries
b. arterioles
c. veins
d. venules
Answer:
C. Veins.
Explanation:
Within the body, there are a total of four pulmonary veins, and all of them connect to the left atrium of the heart. The heart pumps oxygen-depleted blood into the lungs via the pulmonary arteries.
What might happen to the magma convection currents if there were no radiogenic heat produced in the core?
How would this affect life on Earth?
Plz help me
Answer:
If there were no radiogenic heat produced in the core, there would be no convection currents, and life on the Earth would not be possible.
Explanation:
The convection currents are the result of heating by temperature gradients. Differences in temperature and density produce these currents. Warm materials are lighter and can ascend, while cold materials are heavier and denser, so they tend to descend. These materials movements create a circular motion pattern known as convective currents. They occur in the atmosphere, in the water, and the Earth mantle. In the last case, while the hot material emerges from the bottom areas, the cold mantle sinks, creating a circular convection current. These play a significant role in fluids circulation and might be responsible for the movements of the lithospheric plates that are over the mantle. The temperature on the surface is much inferior that the mantle´s temperature, so the lithospheric pieces sink, creating a descendent current. Near the terrestrial core, the heat might reach up to 3,500ºC, and solid materials in these areas melt and fuse. When fusing, materials lose density, becoming lighter and ascending again to the surface, creating the ascending currents. The currents of ascending materials are known as thermal feathers or plumes.
Hot ascending material keeps the surface warm, making life possible. Also, radiogenic heat produced in the core is responsible for the electromagnetic field.
The electromagnetic field protects the Earth from many particles that come forward to the surface from space, specifically from the sun. The electromagnetic field also influences the atmosphere, keeping it in its place, necessary for life on Earth.
The plate´s movement produces earthquakes and volcanic activity. Both of them also necessary for many reasons, such as keeping fertile soils and producing necessary atmospheric gasses.
Through the years, the core losses heat, and eventually, it will become solid. When this happens, convective currents will stop because there will be no heat from the bottom to make them move. The electromagnetic field will disappear, and the atmosphere will be affected as well. The Earth surface will become cold. Mantle movement will stop, and there will be no earthquakes nor volcanic activities. Every living being on Earth will be affected by this fact. Life on Earth will not be possible.
A(n)
reaction removes a functional group to a substrate.
Answer:
a
Explanation:
a
5 Clear Mark for Review Sacculina carcini is a barnacle that attaches to the underside of the green crab. The barnacle finds a hole in the green crab's exoskeleton, then uses microscopic hairs to feed on nutrients from the green crab's blood. The barnacle also lays its eggs in the green crab reproductive system, which sterilizes the green crab. Which term describes the role of S. carcini in this relationship?
Answer:
S. carcini is a parasitic barnacle species
Explanation:
Parasitism: In this case, one of the species is beneficiated, while the other suffers a consequence, reducing its fitness. These interactions are mostly about nutrition, although there might be other benefits too. Some parasite species might coexist with their host, while some others might get them ill to the point of causing death. Parasitic attacks might be very nocive, and even though they are not lethal in a short period of time, they might slowly kill the host.
Parasitic species consume part of the host, but not the whole body. They develop an intimate relationship with their host.
The Host increases the fitness of the parasite speciesThe parasitic species decreases the fitness of the host.By taking the nutrients from the green crab's blood and sterilizing it, the barnacle causes a decrease in the fitness of the crab. The crab becomes weaker and its survival chances decrease, and they have no opportunity to reproduce. Meanwhile, the barnacle gets stronger and reproduces normally.
which of the following terms would blue eyes represent in an organism?
A. genotype
B. phenotype
C. appearance
Answer:
phenotype
Explanation:
Genotype is the term which is responsible for the blue eyes in an organism because it occurs due to changes in genes.
What is genotype?The genotype of an organism refers to genes or genetic material of an organism. Genotype can also be refer to the alleles or variants an individual carries in a particular gene.
So we can conclude that genotype is the term which is responsible for the blue eyes in an organism because it occurs due to changes in genes.
Learn more about genotype here: https://brainly.com/question/22117
HELP PLS
Definition: This is the growth or movement of a organism (usually a plant), in response to a stimulus. Example: The stimulus can be gravity, light, touch, or temperatre.
What structure is found only in eucaryotic cells
Answer:
only eucaryotic have a nucleus and membrane-bound structures called organelles.
Explanation:
Which graphic organizer is commonly used to compare and contrast ideas?
Venn diagram
mind map
word web
problem-solution chart
Answer:
Venn diagram
Explanation:
The Venn diagram is a graphical organizer which is commonly used to compare and contrast ideas.
The Venn diagram is represented by several number of circle that represents different areas in order to compare one area to another. If the circles are overlapping it shows commonality or similarity between those both areas are. The Venn diagram makes easy to understand the difference or similarity between two areas.
Hence, the correct answer is "Venn diagram".
Answer:
A- Venn diagram
Explanation:
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see the screenshot and answer the question