Answer: C.O2
..............
Answer:
B) Ethanol ..hope this helped.
Explanation:
what are the two forms of oxygen found in the atmosphere
please give me the answer of this question
don't spam
Answer:
hi tauheed where are u from
What is our heart made out of?
Explanation:
blood and veins i guess.
what can you infer about an average star's brightness and temperature?
Answer:
Stars with a high temperature are blue and bright, while stars with a low temperature are red and dim. For example, Spica is a blue star at approximately 25,000 K with a high brightness, and Barnard's star is a red star at approximately 3,000 Suns with with low brightness.
Explanation:
please give me a heart
scientists infer that oxygen first began to enter Earth's atmosphere after the appearance of
Oxygen entered the Earth's atmosphere after the appearance of the Great Oxidation Event (Great Oxygenation Event). The Great Oxidation is the first mass extinction on Earth.
The Great Oxidation lasted 2.4 to 2.0 billion years ago.
Oxygen appeared on Earth thanks to cyanobacteria using photosynthesis.
Oxygen first began to enter Earth's atmosphere after the appearance of cyanobacteria.
The ability to generate oxygen via photosynthesis likely first appeared in the ancestors of cyanobacteria. These organisms evolved at least 2.45–2.32 billion years ago, and probably as early as 2.7 billion years ago or earlier.Why cyanobacteria was important for evolution?Cyanobacteria carry out oxygen-evolving, plant-like photosynthesis. Earth's oxygen-rich atmosphere and the cyanobacteria origin of plastids in plants are the two major evolutionary contributions made by cyanobacteria. Certain cyanobacteria are able to carry out nitrogen fixation.To know more about evolution here
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DNA replication is a process that involves copying the DNA molecule if a single base was miscopied what would be a possible result of this for the cell in which it happened
Answer:
If a single base is miscopied during replication then there is a possibility that the new base which has been incorporated will specify the same amino acid just like the old base. It happens because genetic code is degenerate which means that more than one codon can specify same amino acid.
Answer:
I think it would create two identiacle daughter cell soory for my spelling
Explanation:
Which is the expected outcome of combining the DNA of two parents during sexual reproduction?
Answer:
A child...? Sorry if I'm wrong, this one's kind of confusing me.
Explanation:
Counting how many sunflowers turned toward the sun is an example of -
A-Qualitative data
B-pinions
C-Quantitative data
D- Beauty
Answer:
answer is (c) quantities data
All of the offspring produced in a test cross involving a brown rabbit and a white rabbit are brown. The result of this cross is best explained by A. Incomplete dominance B. Codominance C. Crossing over D. Dominance
Answer:
D
Explanation:
The result of the cross is best explained by dominance.
According to Mendel, when the alleles that make up a gene are different and one of the alleles is dominant over the other, the dominant allele would mask the effects of the recessive allele.
In the same vein, when the alternate version of the same trait is dominant, such trait would be expressed over the other version in heterozygous state.
Assuming that the genotype of the brown rabbit is BB and that of the white is bb. When the two rabbits are crossed:
BB x bb
Bb Bb Bb Bb
All the offspring would be heterozygous and brown in color because the brown allele is dominant over the white allele.
Hence, the correct option is D.
The Pelagic zone is divided into 5 vertical layers.
True
False
Answer : I thank its True I Hope it Can Help : )
Explanation:
Answer:
false
Explanation:
The vertical zones in the ocean include the epipelagic, mesopelagic and bathypelagic zones. The zones are based on the amount of light that penetrates the ocean waters. The epipelagic zone is also called the sunlit zone because it receives enough sunlight to support photosynthesis.
it is divided into three vertical layers
What are the two types of digestion that occur in the human body? (Select 2)
Enzymase
Technical
Mechanical
Chemical
Answer:
its Mechanical digestion and Chemical digestion
Explanation:
I dONt WaNt TO `PLaY wItH a FisHEy On Me :)
Answer:
better slap your knee
Explanation:
tiko
Answer:
your life your choice.you is free to choose
cause ice erosion.
Waterfalls
Hurricanes
Rain storms
Glaciers
Answer:
Glaciers
Explanation:
Compare and contrast passive transport, active transport, and osmosis
Answer:
Passive transport moves molecules and ions from a higher concentration to a lower concentration without any energy while active transport does the same thing only it uses energy. Osmosis deals with the net movement of solvent molecules through a membrane with a higher solute concentration. Osmosis and active transport both work together, while osmosis does its own movement the active transport moves the dissolved solutes across a membrane against a concentration gradient.
Active transport and passive transport are almost the same they function the same only one doesn't require energy while the other one does. Hence why active transport and osmosis work well together it's because of the energy that helps transport dissolved solutes.
Hope this helped :)
when a person has heartburn acidic juices enter the esophagus and cause a burning sensation. where do these acidic juices come from?
Answer:
Stomach
Explanation:
The acids are gastric acids.
Hope this helps! :)
Which of the following statements correctly identifies the location of the hydrogen bonds in DNA?
Between the sugar and the phosphate of adjacent nucleotides
Between the phosphate and the complimentary nitrogen base
Between adenine and itsliyomplementary nitrogen base uracil
Between thymine and its complementary nitrogen base adenine
Answer:
answer 1
Explanation:
Answer:1
Explanation:ok
What four characteristics of an aquatic environment might make photosynthesis or life processes difficult for aquatic plants? List each characteristic, and describe how it can impact photosynthesis and the plant as a whole. (8 points)
Answer:
Hello there, I will give the answer
Explanation:
Aquatic plants require special adaptations for living submerged in water, or at the water's surface. The most common adaptation is the presence of lightweight internal packing cells, aerenchyma, but floating leaves and finely dissected leaves are also common.
List six alternative energy sources.
Answer:
Tidal power, solar power, energy, wind power, biofuel, and hydrogen are six alternative energy sources.
what is the discussion for the lab ( to determine if both water and oxygen are necessary for rusting)
Answer:
Rust is iron oxide or Fe304, water is H2O
3Fe + 4H2O → Fe3O4 + 4H2
Explanation:
Examine the diagram representing a section of an organic molecule.
What process is most directly controlled by this molecule?
A) digestion of nucleic acids
B) regulation of salt levels
C) storage of lipids
D) synthesis of proteins
Answer:
b
Explanation:
The process is most directly controlled by this molecule - D) synthesis of proteins.
DNA The diagram is given is the DNA molecule or sequence which is made of chemical building blocks called nucleotides.These building blocks are made of three parts: a phosphate group, a sugar group, and one of four types of nitrogen bases.To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating.DNA contains the instructions needed for an organism to develop, survive and reproduce.DNA sequences must be converted into messages that can be used to produce proteins.Thus, The process is most directly controlled by this molecule - D) synthesis of proteins.
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Please explain how cellular respiration and photosynthesis are considered opposite processes. Do not tell me on how the equations are reverse of each other, that is not what I am looking for.
Answer: when the 6CO2 and the 6H2O in photosynthesis go in and they break up in to partials and they change and form in to 6O2 and C6H12O6, and then when the 6O2 and the C6H12O6 go in to cellular respiration and they do the same thing only 6CO2 and 6H2O comes out and the process start all over again.
Explanation:
Why do some scientists believe that dinosaurs were warm blooded?
Answer:
Some paleontologists think that all dinosaurs were 'warm-blooded' in the same sense that modern birds and mammals are: that is, they had rapid metabolic rates. ... Some scientists think that very big dinosaurs could have had warm bodies because of their large body size, just as some sea turtles do today.
Explanation:
Hope this will help you
Some scientists believe that dinosaurs were warm-blooded because of evidence from their fossilized bones, growth rates, and the presence of features similar to modern warm-blooded animals.
The belief that dinosaurs were warm-blooded is based on several lines of evidence. First, studies of fossilized dinosaur bones have revealed features such as Haversian canals, which are characteristic of fast-growing, metabolically active animals. This suggests that dinosaurs had high metabolic rates similar to warm-blooded animals.
Second, researchers have analyzed the growth patterns in dinosaur bones and found that they exhibit characteristics of rapid growth, which is consistent with the growth rates observed in warm-blooded animals. Slow-growing reptiles, on the other hand, show different growth patterns.
Furthermore, some dinosaurs show evidence of insulation in the form of feathers or other types of integumentary structures. These structures would have provided insulation and helped regulate body temperature, similar to how feathers function in modern warm-blooded birds.
Additionally, the presence of large predators among the dinosaur species suggests an active and energetic lifestyle that is more characteristic of warm-blooded animals than cold-blooded reptiles.
While these pieces of evidence suggest that dinosaurs were warm-blooded, it is important to note that the debate among scientists is ongoing, and there is still no consensus. The study of dinosaur physiology is challenging due to the limited information available from fossil remains. Nonetheless, these lines of evidence contribute to the hypothesis that some dinosaurs may have exhibited warm-blooded characteristics.
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A change is a single nitrogenous base can cause a mutation called which of the following
A. evolutionary mutation
B. point mutation
C. micromutation
D. zoomatic mutation
During replication, enzymes called ____________________ untwist the double helix, separating the two parental strands. The point at which the two chains separate is known as the _______________________.
Answer:
During replication, enzymes called helicases untwist the double helix, separating the two parental strands. The point at which the two chains separate is known as the replication fork.
Explanation:
Replication is the process of multiplication of DNA molecules where, from one molecule, two molecules with the same information as the original can be obtained.. Each new replicated DNA molecule has an original strand and a new strand, so replication is semi-conservative.
For replication to occur, the double strand of DNA must be separated, a process that requires the participation of a group of enzymes called helicases. The helicases are responsible for breaking the hydrogen bonds between the complementary bases of one strand and another.
The DNA strands, when separated, form a zipper-like image, and the point of separation between the two is called the replication fork.
The study of genes is called genetics.
The correct answer is During replication, enzymes called helicases untwist the double helix, separating the two parental strands. The point at which the two chains separate is known as the replication fork.
What is replication?Replication is the process of multiplication of DNA molecules where, from one molecule, two molecules with the same information as the original can be obtained. Each new replicated DNA molecule has an original strand and a new strand, so replication is semi-conservative.
For replication to occur, the double strand of DNA must be separated, a process that requires the participation of a group of enzymes called helicases. The helicases are responsible for breaking the hydrogen bonds between the complementary bases of one strand and another.
The DNA strands, when separated, form a zipper-like image, and the point of separation between the two is called the replication fork.
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Determine whether the statement is true or false, and why. “If a point mutation occurs in a tumor gene it can become activated. This allows the rate of cell division to increase unregulated.”
A. False, it should read “If a point mutation occurs in a tumor suppressor gene it can become inactivated. This allows the rate of cell division to increase unregulated.”
B. True
C. False, it should read “If a point mutation occurs in a tumor suppressor gene it can become inactivated. This inhibits the rate of cell division decreasing it drastically.”
D. False, it should read “If a point mutation occurs in a Proto-oncogene gene it can become inactivated. This allows the rate of cell division to increase unregulated.”
Answer: A. False, it should read “If a point mutation occurs in a tumor suppressor gene it can become inactivated. This allows the rate of cell division to increase unregulated.”
Explanation: I already know this for a fact.
The statement “If a point mutation occurs in a tumor gene it can become activated. This allows the rate of cell division to increase unregulated" is false.
What is Point mutation?Point mutation may be defined as a method of genetic alteration that is caused by the substitution of a single nucleotide for another nucleotide in the DNA sequences. In this type of mutation, a single nucleotide base is altered through insertion or deletion from the sequence of DNA or RNA.
The above statement is false because if a point mutation occurs in a tumor suppressor gene it can become inactivated which terminates the expression of suppression of tumors.
And now the cell has the capability to grow unexceptionally with an irregular pattern. This allows the rate of cell division to increase unregulated and have a most potent threat of being infected with cancers.
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In order for protein synthesis to occur, both transcription and translation must occur. Which of the following statements describes the difference between transcription and translation?
In transcription, the genetic code of a DNA molecule is encoded. Translation is the process of converting the DNA code into a code that RNA can use.
In transcription, an amino acid chain is encoded in a DNA molecule. Translation is the process of turning the amino acids into nucleic acids in an RNA molecule.
In transcription, a double helix DNA molecule is split into two separate single strands. Translation is the process of joining each single DNA strand with a single strand of matching RNA.
In transcription, the genetic code of a DNA molecule is transferred to a messenger RNA molecule. Translation is the process of creating an amino acid chain using the encoded messenger RNA.
Answer:
1
Explanation:
In transcription, the genetic code of a DNA molecule is transferred to a messenger RNA molecule. The translation is the process of creating an amino acid chain by using the encoded messenger RNA. So the correct option is D.
What are transcription and translation?The first step in the process of gene expression is called transcription. In this process, the DNA sequence of a gene is copied for the formation of an RNA molecule.
RNA polymerase enzymes link the nucleotides of DNA to form an RNA strand. The DNA strand is the template. For every gene in the genome, transcription is separately controlled.
The translation is the process by which an mRNA molecule encodes for a protein. The process of translation happens with the help of tRNA in the ribosomes.
Translation requires ATP which is produced by the tRNA. The tRNA in the ribosomes supplies energy to RNA for the transcription of proteins The entry of mRNA occurs by the smaller subunit of RNA and the amino acid chain extends from the larger subunit.
Therefore the correct option is D.
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Give the phenotype for HH
a. Long hair
b. Medium hair
C.Short hair
Answer:
B
Explanation:
Answer:
i will go along with b
Explanation:
go get the answer right
what are the differences between RNA and DNA
Answer:
The difference between RNA and DNA is the sugar present in the molecules
Explanation:
In RNA,the sugar molecule present is Ribose while in DNA the sugar molecule present is Deoxyribose.
Complete a Punnett square that shows a test cross for a tall pea plant (RR x rr). Place the plant to be tested at the top of the Punnett Square.
[ ] [ ] [ ]
[ ] [ ] [ ]
[ ] [ ] [ ]
Answer:
Rr, Rr, Rr, Rr.
the pea will be heterogeneous.
Explanation:
2x^2+x-6=0 solution(s)?
Answer:
-2 and 1.5
Explanation:
USE DESMOS! IT IS A FREE GRAPHING CALCULATOR SUPER USEFUL!
BRAINLIEST IF CORRECT!!!!! One line of evidence that evolution occurs through the theory of natural selection is..... Question 3 options:
A. Sailing around the Galapagos to observe multiple species
B. DNA is used to show where adaptations come from.
C. Peppered moths were observed to illustrate natural selection.
D. Breeding turtles to show their adaptations.
all I know is its not B
Answer:
the answer is C
Explanation:
I took the test
Answer:
C
Explanation: I took the K-12 test