Answer:
the S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA. in this way, the genetic material of a cell is doubled before it enters mitosis or meiosis, allowing there to be enough DNA to be split into daughter cells.
in S phase, the cell synthesizes a complete copy of the DNA in its nucleus. it also duplicates a microtubule-organizing structure called the centrosome. the centrosomes help separate DNA during M phase.
Explanation:
Do dams purify water?
Answer:
I dont think so but i really dont know.
Explanation:
I dont know.
Answer:
Dams that divert water for power and other uses also remove water needed for healthy in-stream ecosystems. Peaking power operations can cause dramatic changes in reservoir water levels. This can leave stretches below dams completely dewatered.
So yah~
Explain why scientirsts concluded that the instructions for species characteristics were carried in DNA.
Answer:
Explanation:
Deoxyribonucleic acid is said to contain instruction for species characteristics because it carries the information that characterize an individual.
DNA are made up of Nitrogenous bases that are unique codes specify by an individual and no two person has the same the DNA.
Genes are genetic information or instruction that specify an individual. it is located in the chromosome in the nucleus. DNA contains gene which helps to make molecules called proteins. It is the basis of all inheritance and the expression of the gene is what produces the phenotype that is visible.
Which of the following best summarizes how hormone levels are controlled?
Hormones are controlled by a feedback loop; information about a system is sent back to the controller of the system to improve its function.
Hormones are controlled by oxygen levels; the internal environment maintains all systems, including endocrine functions.
Hormones are controlled by muscles; hormones are released when muscles contract and stopped when muscles relax.
Hormones are controlled by the nervous system; the spinal cord sends messages about hormone levels to the brain.
Answer:
The answer is A
I took the quiz and got it right
Answer:a
Explanation:
Which of these is a secondary crop?
A. Sugar
B. Latex
C. Wheat
D. Plums
Answer:
B I think. let me know if I'm right because I might be wrong.
Answer:
D. Plums
Explanation:
Just took the quiz
Information about biomedical scientist.
To which structure does an anticodon bind?
Answer:
the anticodon sequence will blind to the codon of the mRNA
What types of organisms give the soil essential nutrients for new plants to grow?
A.
primary consumers
B.
secondary consumers
C.
producers
D.
decomposers
Answer:
D. decomposers
Explanation:
primary, secondary consumers and producers all eventually die. Decomposers break the dead organisms down to nitrogen, carbon and other basic elements that can then be used as nutrients for the new plants.
Which two types of organisms are found in the domain Eukarya?
A. Archaea
B. Animals
C. Bacteria
D. Protists
Answer:
d and b
Explanation:
I have done middle school science.
Answer:
D. B.
Explanation:
These two types of organisms are found in the domain Eukarya.
Hope this is correct, have a great day.
When water TRANSPIRES from the stoma into the atmosphere, what phase is it in?
Answer:
it's called transpiration when stomata opens and release extra water
(GIVING BRAINLIEST!!)
Kendra wonders what would happen if the oceans did not exist on Earth. Based on her understanding of the oceans and the water cycle she predicts that Earth would become warmer, with less rain, more clouds, and that living things would not survive. Which part of her prediction is incorrect?
A) That living things would not survive
B) That Earth would get warmer
C) That there would be less rain
D) That there would be more clouds
Answer:
That there would be more clouds is the incorrect answer
Explanation:
Why would reaching the center of the Earth be difficult? In your opinion, could we one day reach the center of the Earth? Explain why or why not.
Answer:
At the very center of the earth is the inner core, a 760-mile-wide ball of iron. Seismic studies show that it consists of iron crystals that are kept solid by tremendous pressure even though it is hotter than the surface of the Sun.
The strength of gravity at the center of earth is zero because there are equal amounts of matter in all directions, all exerting an equal gravitational pull. With such thick air, you eventually lose momentum and stop your yo-yo motion about the center of the earth. You would end up stuck floating at the center of the earth.
Explanation:
I majored in Biology
A researcher discovers that a cell is using a particular molecule to store energy for time spans longer
than several minutes. Which 2 molecules could possibly be the type of molecule that the researcher
examined? Hint: Biochemistry Unit.
i. ATP or ADP
ii. ATP or carbohydrate
iii.Carbohydrate or lipid
iv. Lipid or protein
Answer:
the answer is atp or adp
Explanation:
hopeit helps and carry on lorneg
A sparrow will build its nest under the nest of an osprey. The smaller birds get protection because other predators will not mess with the osprey. The osprey is unaffected.
What kind of symbiotic relationship do they have?
Mutualism, Commensalism, Parasitism.
Answer:
Commensalism
Explanation:
Long-term biological activity in which advantages are obtained by members of one species while those of the other species do not benefit or are harmed.
Answer:
commensalism
Explanation:
Plz help me I dont know this
Answer:
Primary - 500
Secondary - 50
Teritary - 5
Which two factors will increase the rate of a stream’s flow?
Answer:
Flood Erosion and Deposition: As flood waters rise, the slope of the stream as it flows to its base level (e.g., the ocean or a lake) increases. Also, as stream depth increases, the hydraulic radius increases thereby making the stream more free flowing. Both of these factors lead to an increase in stream velocity.
Explanation:
Flood erosion and deposition, as flood waters rise, the stream's slope rises as it descends to its base level, which may be an ocean or a lake.
What is the stream’s flow?Additionally, when stream depth rises, the hydraulic radius rises as well, increasing the stream's ability to flow freely, these two elements cause the stream velocity to rise.
The volume of water flowing into a stream channel from the watershed directly affects the stream's flow. The weather has an impact on it; it rises during downpours and falls during dry spells.
The force of gravity, which pushes water downhill, is what gives moving river water its energy. A river will flow more quickly and with greater energy at a higher slope.
Therefore, flood erosion and deposition factors will increase the rate of a stream’s flow.
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PLEASE HELP ME mendel studied heredity by experimenting with
A.hybrid
B. recessive
C. pea plants
D. gregor mendel
E. genes
F. are the same
G. dominant
H. pure
I. two
Answer:
Pea plants mendel used pea planta
nonononononononononononono
In what type of organs are the cells that enter meiosis 1 found
Answer:
gonads, ovaries and testes
Explanation:
if im right, can i get the crown
Which type of tectonic plate boundary would most likely result in metamorphic rocks?
Answer:
convergent plate boundaries
Answer:
convergent
Explanation:
Which of the following is the best explanation for why the chromosome numbers above are all even?
Diploid Chromosome Number
Fruit Fly 8
Human 46
Goldfish 94
1)
The diploid chromosome number represents two sets of chromosomes, one from each parent, so it is always an even number.
2)
Animal cells always have an even number of chromosomes, and plant cells always have an odd number of chromosomes.
3)
The number of chromosomes present in a diploid cell doubles for each generation because there are two parents.
which molecules are used to create the biomass of our cells ????
Answer: The glucose molecules serve as fuel for cells: their chemical energy can be harvested through processes like cellular respiration and fermentation, which generate adenosine triphosphate— ATPstart text, A, T, P, end text, a small, energy-carrying molecule—for the cell's immediate energy needs. Fixed carbon.
Explanation:
Answer:The glucose molecules serve as fuel for cells: their chemical energy can be harvested through processes like cellular respiration and fermentation, which generate adenosine triphosphate— ATPstart text, A, T, P, end text, a small, energy-carrying molecule—for the cell's immediate energy needs. Fixed carbon.
Explanation: i looked it up
Which parent's X chromosome matches Calix's DNA?
Mother's
Father's
Both parents
Neither parents'
If Calix is a male, then the X chromosome is from the mother, but if Calix is a female, then the X chromosome is from both parents. Males can produce two types of gametes, such as X and Y.
What, exactly, is a chromosome?There are two sets of chromosomes: autosomes, and the X ,Y chromosome. The autosomes are passed down to the male and female offspring from each parent. The other X and Y chromosomes are passed down differently. In the case of male offspring, there are both X and Y chromosomes. The X chromosome comes from the mother while the Y chromosome is from the father, but in the case of a female offspring, there are two X chromosomes. Each X chromosome comes from each parent.
Because males can produce two types of gametes, one with the X chromosome and one with the Y chromosome, the gender of offspring is determined by the gametes produced by the male. The female can produce only one type.
Hence, if Calix is a male, then the X chromosome is from the mother, but if Calix is a female, then the X chromosome is from both parents.
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Answer: Both parents
Explanation:
the microarray has gene matches for all three X chromosomes; for the 2 X chromosomes from the mother and 1 from the father
e) What specific diseases or disorders can be studied with the use of a whole chromosome probe? (2
points)
Answer: a whole chromosome probe is most useful for examining chromosomal abnormalities such as Down Syndrome, miscarriages, and problems with growth and development
is chemical reaction between limestone and acid in groundwater responsible for its formation
Answer: Geysers are water that comes out of the ground spurting into the air, wetlands are self-explanatory, while volcanoes are full of magma, not of acid and limestone.The upper layers of soil above the groundwater contains carbon and limestone. The water being combined with carbon becomes acidic which erodes limestone this results in formation of sinkholes and caves.
hope this helps have a nice night❤️
Explanation:
When glucose is made, which of the following can happen to it
Answer:
It can be stored, transported throughout the tree, and converted into energy which is used to power all cellular processes.
hope this helped :)
Explanation:
What term describes a type of active transport where the cell membrane forms a pocket around liquids and then folds it into the cell by a vesicle?
Answer:
Endocytosis is the process of capturing a substance or particle from outside the cell by engulfing it with the cell membrane. The membrane folds over the substance and it becomes completely enclosed by the membrane.
Explanation:
Natural selection relles on natural variations in organisms that make them more likely to
survive. Where do these natural variations come from?
Describe the differences between the structure of the circulatory system of a fish and the human circulatory system.
4 marks
Answer:
In mammals (like us) there is a double circulation. The right side of the heart receives blood returning back from the body; this blood is low in oxygen (blue in the figure to the right). ... In fish, the heart only has one atrium and one ventricle.
Hope it helps
What type of pressure means the air around you is densely packed?.
In the atmosphere, the density of air debris decreases with height, with greater fuel online debris the last close to the floor of Earth. When simplest thinking of humidity, dry air is greater dense than wet air due to the molecular weights of the gases.
Solids have a tendency now no longer to transport very much - they have an exact form and normally live wherein they are put. Liquids and gases then again are lots greater willing to transport - they are fluid. That's why fluid is both a liquid and gas.
What is atmospheric pressure?It is described as the pressure in the atmosphere also called barometric pressure, within the earth's atmosphere.
Hence concludes that the air around you is densely packed due to the fact that The accurate announcement is denser exerts extra strain than much less dense air. Explanation: that is due to the fact with the boom in the density there are extra molecules of air that can be packed inside a selected extent of air.
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Х Flag A lake borders a housing subdivision and a golf course. Over time, algae in the lake begin to grow uncontrollably. Which is the most likely cause of the algal bloom? A runoff of topsoil from construction on the golf course B runoff of nitrates from fertilizers applied to the golf course runoff of gasoline from roads through the golf course D runoff of animal waste from pets walked on the golf course
Answer:
B. runoff of nitrates from fertilizers applied to the golf course
Explanation:
Algal bloom is defined as the rapid growth of algae in freshwater or marine water. Algal bloom is green or yellowish in color that cover the top layer of water systems.
Algal bloom in the given case is caused by the excess of nutrients that is nitrates from fertilizers into waters and higher concentrations of nitrates causes uncontrollable growth of algae.
Algal blooms are harmful for environment as they may produce toxins and can block the sunlight from reaching the plants and animals in the water systems.
Hence, the correct answer is "B. runoff of nitrates from fertilizers applied to the golf course".
Name three different types of this nucleic acid found in a cell
Answer:
RNA and DNA are the main ones, but mRNA and rRna are some, too
Explanation:
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