Answer: Five
Explanation:
A positively supercoiled DNA is a overwound DNA. It forms a twisted shaped of figure eight. The lobes of the figure will appear rotated in clockwise or anticlockwise direction with respect to each other. The base pair per turn for the helix in positively supercoiled DNA molecule is five. This conformation of DNA inhibits the replication and transcription processes due to overwound nature of DNA.
How do long term environmental impacts change subsequent
populations?
Answer:
Third effect... cause the organisms end up going extinct. A long-term environmental changes are... ice age, deforestation, urbanization, Earth's orbit, Sun's intensity, Global Warming, radioactive waste/pollution, extinction of species this could happen to anyone of the food webs.
Explanation:
hope this will help you
100 points if you answer this!PLEASEE
Based on the data, which environment did the coal bed used to be?
A. a dry desert
B. a wet swamp
C. a cold tundra
O D. a mountain top
Answer:
a mountain top mam
Explanation:
do alabama cavefish stay in groups or seperated
Answer: I think they stay in groups
As scientists, politicians and concerned citizens recognize the threat of global warming to the ongoing climate change, reductions in greenhouse gas emissions become the forefront of the discussions. To reduce the presence and persistence of greenhouse gases in the atmosphere their sources must be fully understood. Natural and anthropogenic greenhouse gases can impact their presence in the atmosphere. Which of the options best matches the anthropogenic sources and the greenhouse gas accurately?
Answer:
Methane- livestock farming and landfill decomposition
CFCs- refrigerants and propellants
Carbon dioxide- combustion of fossil fuels
Explanation:
Methane is released by anaerobic decomposition, which often occurs in landfills, and during the breakdown of cellulose, which occurs in the rumen (stomach) of some herbivores like cows. This increase in methane significantly contributes to greenhouse gas emissions. CFCs are entirely man-made, and are a chemical release as a byproduct of refrigerants, coolants, and propellants from items made prior to the 1990s.
In guinea pigs, smooth coat(S) is dominant over rough (s) and black coat (B) is dominant over white coat (b). In the cross SsBb x SsBb, how many of the offspring will have a smooth black coat on average
Answer:
9/16
Explanation:
Smooth coat (S) is dominant over rough coat (s) and black coat (B) is dominant over white coat (b).
SsBb x SsBb
Offspring (You can also see the attached image for the Punnet's square analysis)
9 S_B_ = Smooth black coat
3 S_bb = smooth white coat
3 ssB_ = rough black coat
1 ssbb = rough white coat
Hence, on average, 9/16 of the offspring will have a smooth black coat
how is the mid-Atlantic ridge the same as the east pacific rise
Answer:
East pacific rise is the mid oceanic ridge located in the Pacific Ocean. The mid Atlantic ridge separates the Pacific ocean and forms a rift valley of Great Canyon.
Explanation:
East Pacific rise and Mid Atlantic ridge is spread at a rate of 5 centimeters approximately. It runs from Salton sea basin approximately 55 degrees south. The volcanic chain of South East Pacific runs parallel to the West Coast of South America.
Help!
How many dolphins are usually in a pod??
25 Pointss!
Answer: Most pods contain anywhere from 2 – 30 dolphins depending on the species and the situation, however there are occasions when pods gather with other pods to form superpods of 100 or even several thousand dolphins!
Explanation:
Answer:
It really depends but around 5-20.
Explanation:
This is from and educational site by the way.
which abiotic factor in an ecosystem helps to control population size?
A. plant growth
B. plenty of sunlight
C. species of animals
D. availability of space
Answer:
The correct answer is - B. plenty of sunlight
Explanation:
Abiotic factor in an ecosystem is a factor that shapes its environment such as temperature, water, sunlight, and many more factors in a terrestrial ecosystem.
The ecosystem abiotic factors affect the population size in the ecosystem. Among the options sunlight that affects the whole ecosytem included herbivore, carnivore and many other aspects.
A horse's cells carry out many processes at once. Some cells are involved in growing fur and some are involved in muscle contraction Which sentence describes how cells continue to carry out their many processes?
Answer:
i dont know
Explanation:
i just dont
In corn plants, tall (T) is dominant to
short (t). What are the chances of two
heterozygous tall plants producing
| short offspring?
Answer:
The probability that one of wear their offspring will be short is 1/4 .
Explanation:
Answer:
1/4
Explanation:
In mice, black fur color (B) is dominant over brown fur color(b). In a cross between two heterozygous mice. What is the probability of a black male mouse?
A
1/4
B
1/2
C
3/8
D
3/4
Answer:
vdjxvskevjveuvedigxeievxvexigdeu
What happens if chlorine is added to large amount of water?
(pls no hard answers)
Answer:
Any type of chlorine that is added to water during the treatment process will result in the formation of hypochlorous acid (HOCl) and hypochlorite ions (OCl-), which are the main disinfecting compounds in chlorinated water.
Explanation:
Helppppp pleaseeeeee
Answer:
Prokaryote: lack of membrane-bound nucleus, DNA in cytoplasm, single circular chromosome
Eukaryote: Membrabe-bound nucleus, DNA inside nucleus, multiple chromosome.
Explanation:
Prokaryotes are one of the two domains, which consists of organisms that do not possess a membrane-bound nucleus. Due to this fact, the genetic material (DNA) of prokaryotic organisms like bacteria is found located in their cytoplasm. The DNA is found as a single circular chromosome in a region called NUCLEOID.
On the contrary, eukaryotes are the second domains of organism characterized by their possession of a membrane-bound nucleus that houses their genetic material (DNA). All the DNA of an eukaryotic organism like plants, animals etc. are found inside its NUCLEUS. They are made up of multiple linear chromosomes.
Is temperature a resource? Yes or no?
Answer:
yes it is
Explanation:
No it's not, This is because Whether it's hot or cold, heat is lost energy. Just because you get the heat for stuff, It's being given off of something, like fire, you use the fire because it gives off heat, however it is not an actual resource, more of an energy.
^-^ Hope it helps (Can I have Brainliest?)
During mitosis two identical cells are produced from the parent cell these are called...
Answer:
Daugter cells
Explanation:
thses are called Daughter cells
Answer: Daughter Cells
Explanation: The process results in four daughter cells that are haploid, which means they contain half the number of chromosomes of the diploid parent cell. Meiosis has both similarities to and differences from mitosis, which is a cell division process in which a parent cell produces two identical daughter cells.
Which of the following includes cellular structures found in BOTH plant AND animal cells? *
A.) Chloroplasts, cell wall, cell membrane, cytoplasm
B.) Vacuoles, cell membrane, nucleus, mitochondria
C.) Cell membrane, cytoplasm, nucleus, cell wall
D.) Chloroplasts, vacuoles, cell wall, cytoplasm
Answer:
Hey! The answer is B
Explanation:
Cell walls only belong to plants, and chloroplasts also only belong to plants. Besides that everything else belongs to both, and that means that B is the only right answer
Answer:
A.) Chloroplasts, cell wall, cell membrane, cytoplasm
Explanation: The plant cell and the animal cell can be differentiated by the presence of organelles in them.although both are classified as eukaryotes, the presence of the cell wall, vacuoles, and chloroplasts are the most remarkable and distinguishing components of the plant cells which are absent in the animal cells.
What type of metamorphic rock is formed from only pressure like the
crayon shavings?
a. non-foliated metamorphic rock
b. foliated metamorphic rock
c. extrusive rock
d. clastic rock
Answer:
Foliated metamorphic rock
Explanation:
PLEASE HELP URGENT!!
Using the picture, explain how you can determine the Rick ages. How can scientists use these fossils to help age the rocks? Give an explanation on how one of these fossils was made.
why are the models of solar systems that you can purchase in stores not to scale?
Answer:
It's impossible to find a solar system model that is to scale because of how large the solar system is. The solar system is about 287 billion km, making it impossible to purchase or even create a solar system model that is to scale.
The models of the solar systems purchased in stores are not to scale because they are too large to be replicated to scale.
The solar system is a series of planetary bodies which consists of the sun and planetary bodies which orbits around the sun. The solar system is immensely huge with an approximate diameter of about 287.46 billion kilometers.
The entire earth itself has an approximate Circumference of about 40,075 km which is extremely small in comparison to the solar system's diameter.
This means that to produce a model of the solar system to scale, the diameter of the replicated model will be 287.46 billion kilometer which is impossible as it is too large to be replicated to scale even immensely larger Than the diameter of the earth.
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Protein found in red blood cells that carries oxygen
O A. positive Rh factor
O B. luminol
O C. plasma
O D. hemoglobin
Answer: hemogoblin
Explanation: Red cells contain a special protein called hemoglobin, which helps carry oxygen from the lungs to the rest of the body and then returns carbon dioxide from the body to the lungs so it can be exhaled. Blood appears red because of the large number of red blood cells, which get their color from the hemoglobin. Please give me brainliest :)
What are the components of a river system?
on Savvas realize
Answer:
lg3algeagl3al4ya5suh4smgeamgea5ri5iedyn6kiikeikke5jwuke5 and and rest k8k8eki6e6ke6ikekr6i6iek6ikik6e6r
What is the range for the following set of measurements?
3.1 mL, 2.7 mL, 4.6 mL, 1.9 mL, 8.7 mL
A. 1.9 mL to 8.7 mL
B. 0.0 mL'to 21 mL
C. 3.1 mL to 8.7 mL
D. 0.1 ml
Answer:a
Explanation:
1.9 mL to 8.7 mL is the range for the following set of measurements which are 3.1 mL, 2.7 mL, 4.6 mL, 1.9 mL, and 8.7 mL. Therefore, the correct statement is option A.
What is the range?The range is the difference between the highest and lowest values in a given set of measurements. The range can be calculated from a given set of measurements by subtracting the lowest value which is 1.9 mL and the highest value which is 8.7 mL, thereby, giving a range of 6.8 mL.
In the given set of measurements which are 3.1 mL, 2.7 mL, 4.6 mL, 1.9 mL, and 8.7 mL, 1.9 mL to 8.7 mL is considered to be the range.
Therefore, 1.9 mL to 8.7 mL gives the range of lowest and highest values present in the given set of measurements. However, the range of values cannot be negative and represents the highest and is only represented by the lowest values and highest values in the set.
Therefore, in the 3.1 mL, 2.7 mL, 4.6 mL, 1.9 mL, and 8.7 mL set of measurements, 1.9 mL to 8.7 mL is the range.
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Which best describes the electromagnetic force?
weak, but stronger than the strong force
strong, but weaker than the weak force
weak, but stronger than the gravitational force
strong, but weaker than the gravitational force
Answer:
weak, but stronger than the gravitational force
Explanation:
Answer:
c
Explanation:
What characteristics describe living things? NEED HELP ASAP PLEEE
Answer:
able to reproduce, needs nutrients in order to live, growth, able to move, gets rid of waste
what is the description of white light coming from the sun
Answer:
The Sun *emits* white light, which is actually a composite of all of the visible frequencies of light. (A prism shows you the visible frequencies of white light.) The distribution of solar frequencies is uneven, the most intense frequency is in the yellow-green part of the spectrum.
: Non living and living organisms have things in common o Fact: o Evidence:
Answer:
Things they have in common..
Explanation:
Non living things and living things are made up of matter.Both occupy spaceThe also have weight,colour,shape etcBoth Non living and living things are characterized by their type..The genetic code of a strand of dna is determined by a specific sequence of
Answer:
genetic code, the sequence of nucleotides in deoxyribonucleic acid ( DNA) and ribonucleic acid ( RNA) that DETERMINES the amino acids sequence of proteins.
The genetic code of a strand of DNA is determined by a specific sequence of three nucleotides.
What are nucleotides?The sequence of nucleotides in deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) that determines the amino acid sequence of proteins is known as the genetic code.
The genetic code for each amino acid is a three-nucleotide sequence. A codon is a three-nucleotide sequence in messenger RNA that specifies a certain amino acid.
The sequences of DNA are made up of nucleotide bases. These bases are thymine, adenine, cytosine, and guanine. The letters A, C, G, and T in DNA determine our unique genetic code and offer instructions for the body to produce molecules.
Therefore, a precise sequence of three nucleotides determines the genetic code of a strand of DNA.
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Which of the following is true about daughter cells?
A.They are genetically identical.
B.They each have their own nucleus.
C.They will most likely undergo mitosis.
D.all of the above
Cell division creates daughter cells. After DNA replication, mitosis produces two daughter cells. Therefore, option (D) is correct.
What are daughter cells?The cell that undergoes the process of cell division and results in the production of two daughter cells is referred to as the mother cell or the parent cell. The genetic make-up of the mother cell is maintained in both of the daughter cells that are formed when mitosis is carried out.
These freshly generated daughter cells have the potential to further divide and expand, so giving rise to a new cell population. This new cell population is formed by the division and expansion of a single parental cell and its daughter cell.
Therefore, all the above options are correct about daughter cells.
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Final Question:
Explain how biological diversity is increased by the origin of new species (a new species being created) and how it is
decreased by the natural process of extinction.
Answer:
the more the species the more diverse
Explanation:
when a species goes extinct it is gone and there is less species
The deepest part of the ocean is...
Answer:
Challenger Deep
Explanation:
In the Pacific Ocean, somewhere between Guam and the Philippines, lies the Marianas Trench, also known as the Mariana Trench. At 35,814 feet below sea level, its bottom is called the Challenger Deep — the deepest point known on Earth.
Answer:
about 7 miles down, the mariana trench
Explanation: