Answer:
The correct answer is option 1. Before and After Cell Division
Explanation:
Point mutations are frequently the result of mistakes made during DNA replication, although modification of DNA, such as through exposure to X-rays or to ultraviolet radiation, also can induce point mutations. But they may also occur after as well as before the division of a cell.
Which nitrogenous base is NOT found in RNA?
1 Adenine
2 Cytosine
3 Guanine
4 Thymine
5 Uracil
Uracil is a nitrogenous base found in all RNA but not present in DNA. There are multiple unusual modified bases found in tRNAs not found in DNA as well: Dihydrouridine, Pseudouridine, 1-methyl adenosine, N2,N2-dimethylguanosine, inosine, and 1-methyl-inosine. There are other nitrogenous bases that are metabolic intermediates that are not found in nucleic acids such as inosine (also in tarna), hypoxanthine, xanthine, dihydroorotate, orotate, and the purine break down product uric acid.
love ur pfp btw!
Explain how the number of electrons in a energy level affects bond formation
for an enzyme to be able to catalyze a reaction, the active site must —
Answer:
Active site of an enzyme must be attached to a substrate
Explanation:
Active site of an enzyme must be attached to a substrate
For an enzyme to be able to catalyse a reaction, the active site must bind with the specific substrate. This is referred as 'enzyme-substrate' complex.
Why do enzymes catalyse a reaction?Enzymes have the property of catalytic activity. All the enzymes are proteinaceous in nature. Enzymes specifically bind with the substrate and thus initiates a catalytic reaction. This is referred as enzyme-substrate specificity.
Enzymes associate with the substrate at a specific site by lowering the activation energy. This forms the active site where the reaction occurs. The substrate thus transforms into the product upon the action of enzyme.
Enzymes are unique as they speed up any chemical reaction. They help in achieving the equilibrium at a faster rate. Daily thousands of enzymatic reactions are carried out in the body.
Thus, enzymes are important in the biochemistry as they persuade chemical reactions.
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which explanations accurately describe how cell structures interact in order to maintain homeostasis? select all that apply.
Answer:
Maintaining homeostasis requires that the body continuously monitors its internal conditions. From body temperature to blood pressure to levels of certain nutrients, each physiological condition has a particular set point. A set point is the physiological value around which the normal range fluctuates.
Explanation:
Question
Tell whether x and y show direct variation. Explain your reasoning. If so, find k.
8=xy
Answer:
PREGUNTA:
INDICA SI XEY MUESTRAN VARIACIÓN DIRECTA .EXPLICA TU RAZONAMIENTO .SI ES ASI, BUSQUE K.
8=XY
Explanation:
ESPERO QUE TE AYUDE
Photosynthesis reactants
Answer:
The reactants for photosynthesis are light energy, water, carbon dioxide and chlorophyll, while the products are glucose (sugar), oxygen and water.
Using your knowledge of non-specific defenses, how could someone prevent Lyme disease in the first place?
Given what we know, we can confirm that the most effective way prevent Lyme disease in the first place is to take steps to ensure that there are no ticks in the area.
What is Lyme disease?Lyme disease is an infection that can cause illness with symptoms similar to the flu, as well as additional effects. This disease is vector-born, meaning it is carried from one host to the other by a vector. In this case, the said vector is a tick, a small insect that feeds on human and animal blood. How to combat ticks.-Some methods include:
Wear insect repellant.Check pets and children often.Use insecticide on all shared outdoor spaces.Therefore, we can confirm that the most effective way prevent Lyme disease in the first place is to take steps to ensure that there are no ticks in the area.
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2 H2O 25) Examine the chemical formula shown here. Which of the statements are supported by the information shown here? Select ALL that apply.
A) There are six total atoms present
B) There are three total atoms present There are a total of two oxygen atoms
D) There are a total of four hydrogen atoms
E) There are two total atoms present hydrogen and oxygen
Examine the chemical formula shown here there are three total atoms two of which are hydrogen and one of which is oxygen and this chemical formula can be seen in the process of photosynthesis also.
What is photosynthesis?The process of photosynthesis has been defined as the process in which green plants prepare their own food in the presence of sunlight and during this process heat energy has been converted into the chemical energy and this process has been taken place in the green plant only.
Photosynthesis has the process through which plant cells use carbon dioxide & water to create oxygen & energy rich organic compounds. They do so by converting sunlight ie light energy into chemical energy. This is possible due to presence of chlorophyll in them. Animals can't do so, as they dont have chlorophyll.
Therefore,Examine the chemical formula shown here there are three total atoms two of which are hydrogen and one of which is oxygen and this chemical formula can be seen in the process of photosynthesis also.
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HELP. Are gills located internally or externally in the body of animal? DO NOT COPY FROM GÔO.GLE. I'VE ALREADY SEEN THAT AND I DON'T GET IT.
Answer:
sometimes.
Explanation:
external gills are most typically found in amphibians however fishes have internal gills.
The answer isnt yes or no, different species have different gills. Some of them internal others external. Hopefully this answers your question :)
how does the mitochondria produce energy for the cell worksheet answers
Answer:
How does the mitochondria produce energy for the cell answers key?
Explanation:
Mitochondria are the powerhouses of the cell because they "burn" or break the chemical bonds of glucose to release energy to do work in a cell
question and options are in the picture
Halophiles live in areas of ____
salt concentration.
Answer:
High.
Explanation:
what part does chlorophyll play in photosynthesis?
Answer:
Explanation:
Chlorophyll's job in a plant is to absorb light—usually sunlight. The energy absorbed from light is transferred to two kinds of energy-storing molecules. Through photosynthesis, the plant uses the stored energy to convert carbon dioxide (absorbed from the air) and water into glucose, a type of sugar
how how does absorption of materials play a role in diffusion
The combined processes of absorption and diffusion are very necessary in the process of digestion.
The combined processes of absorption and diffusion are very necessary in the process of digestion especially in the intestines. The process by which nutrients enter the blood from the intestines is diffusion.
Diffusion occurs when the nutrients must have been absorbed into the blood from the intestines.
Hence, the combined processes ofabsorption and
diffusion are very necessary in the process of digestion.Learn more about digestion: https://brainly.com/question/1283194
What is the equation for a photosynthesis???????????????
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6CO2 + 6H2O → C6H12O6 + 6O2.The equation for photosynthesis is given as:
6CO₂ + 6H₂O ----> C₆H₁₂O₆ + 6O₂
PhotosynthesisPhotosynthesis is the process by which green plants manufacture their food from carbon dioxide and water in the atmosphere using sunlight as an energy source.
Carbohydrates are produced while oxygen is given off as a by-product in photosynthesis.
During photosynthesis, the energy from the sunlight is trapped by the chlorophyll found in the chloroplast and used to energize the reactions involved in photosynthesis.
The equation for photosynthesis is given as:
6CO₂ + 6H₂O ----> C₆H₁₂O₆ + 6O₂
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Maggots get their energy by breaking down dead and decaying animals. What are maggots? autotrophs producers decomposers heterotrophs.
Food is the source of energy that is used by the organism for the process of metabolism. Maggots are the larva of flies and depend on dead and decaying matters.
Maggots are:
Option C. Decomposers
This type of organism can be explained as:
The organism is classified into different classes according to the nature of its feeding habits.Autotrophs are called the primary producer and break inorganic compounds into organic for energy.Producers are the organism that produces their food by converting solar energy into chemical energy.Decomposers are small-sized organism that lives in soil and breaks the organic compound of dead and decayed bodies.Heterotrophs are organism that depends on other sources and producers for energy.Therefore, maggots are decomposers.
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Answer: C- Decomposers
Explanation:
quiz
how important are mangrove swamp in the population of fishes?
Answer:
They help the area of vegetation around it grow and also gives a lot of craba's a place to stay
Eukaryotes are __________________ and include __________________________.
Answer: Eukaryotes are the cells of animals, plants, and fungi and include membrane-bound organelles such as a nucleus and mitochondria.
Explanation: Hoped this helped! :D
If a chromosome fragment breaks off and then reattached to the original chromosome, but in the reverse direction, the resultant chromosomal aberration is called:
Answer:
An inversion
Explanation:
An inversion occurs when a chromosome breaks in two places; the resulting piece of DNA is reversed and re-inserted into the chromosome. Genetic material may or may not be lost as a result of the chromosome breaks.
which mutations are beneficial? which might not make a difference? which ones are most harmful?
Answer:
Mutations are random Mutations can be beneficial, neutral, or harmful for the organism, but mutations do not “try” to supply what the organism “needs.”
Explanation:
Bob has brown hair and Sally has blonde hair. If brown hair is dominant and blonde hair is recessive, is it possible for Bob and Sally to have a blonde-haired child? Use the GENOTYPE of each parent to EXPLAIN your answer.
Answer:
Yes, it is possible.
Explanation:
Bob could either be h.o.m.ozygous (BB) for brown hair or h.e.terozygous (Bb) for brown hair. If Bob is h.e.t.erozygous for brown hair, this means he has a blonde hair allele. For a child to be blonde, the child needs one blonde allele from each parent and this is possible if Bob has a blonde hair allele. However, it is not possible if Bob is h.o.m.ozygous for brown hair.
In the image, there is a punnet square showing the possible genotypes of the children if Bob is h.e.t.erozygous for brown hair.
4
1
Which of the following lines does not pass
through the north and south poles?
A prime meridian
B equator
C 90-degrees W longitude
D International Date Line
The Equator line does not pass through the north and south poles. This line divides the Earth's planet into two hemispheres.
The Equator can be defined as an invisible line located at the center of the Earth (0 degrees latitude).
This invisible line (Equator) divides the Earth into two hemispheres: the northern hemisphere and the southern hemisphere.
The Equator is a circle of latitude, and the distance of this imaginary line is approximately 40,000 km in circumference.
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what molecular process is occurring at a higher rate to result in an increase in lacz mrna?
Answer:
RNA Polymerase
Explanation: General transcription factors position RNA polymerase at the start of a protein-coding sequence and then release the polymerase to transcribe the mRNA. Activators enhance the interaction between RNA polymerase and a particular promoter, encouraging the expression of the gene.
How does carbon atom work on plants
Answer: Carbon moves from the atmosphere to plants. In the atmosphere, carbon is attached to oxygen in a gas called carbon dioxide (CO2). Through the process of photosynthesis, carbon dioxide is pulled from the air to produce food made from carbon for plant growth.This energy makes carbon molecules an excellent source of fuel for all living things. During photosynthesis, plants absorb carbon dioxide and sunlight to create fuel glucose and other sugars for building plant structures. This process forms the foundation of the fast (biological) carbon cycle.
Explanation: (credits to the internet) Hope this helped! <3
In some cases, the spinal cord and associated structures of a newborn may be exposed. This abnormality is called a
Answer:
Spina bifida
Explanation:
Myelomeningocele is a severe type of spina bifida in which the membranes and the spinal nerves protrude at birth, forming a sac on the baby's back. The exposed nervous system may become infected, so prompt surgery is needed after birth
Read this paragraph from "How Water Loss Affects Biodiversity."
“When a region experiences a significant drought, many animals may die from lack of water and food. […] If tourism declines due to high wildlife casualties, then the locals who depend on income from tourism will lose their livelihood. People may then turn to farming to earn money, but crops require water to grow. This can place further strain on the water supply and worsen the original problem of the drought.”
What event can cause many animals to die from lack of water and food?
Answer:
Eggs and fried chicken with mentally stabled fries
thylacosmilus is a marsupial and smilodon is a mammal
Answer:
whats the question?
Organisms that live in a homogenous abiotic environment and cooperate to avoid being eaten would likely show a(n) __________ pattern of dispersion.
Answer:
clumped
Explanation:
What is 0.0000914 in scientific notation?
a b c or d
Answer:
The Answer is A
Explanation:
the salivary glands under the tongue are described as
Answer:
A tissue in our mouth that produces saliva to help swallow food! :)