Answer:
Nondisjunction is the failure of homologous chromosomes or sister chromatids to separate properly during cell division (mitosis/meiosis). There are three forms of nondisjunction: failure of a pair of homologous chromosomes to separate in meiosis I, failure of sister chromatids to separate during meiosis II, and failure of sister chromatids to separate during mitosis. Nondisjunction results in daughter cells with abnormal chromosome numbers (aneuploidy).
Explanation:
Which of the following is true about adaptation?
I. It is random.
II. It results from genetic mutations.
III. It only affects an individual in a population.
I, II, and III
I and II
II and III
I only
Answer: I and II
Explanation: so basically, when adaptation occurs, it usually happens over a long period of time due to climate, predators, etc. because of these adversities, Genetic mutations occur, helping that animal and its species as a whole survive, which checks number 2. number one is also correct because adaptation can not be predicted. it happens randomly at some point in time. 3 is incorrect because multiple offspring in a species could have adaptations that provide more of an advantage.
which is a possible effect on a bay ecosystem if the clams
disappear?
(A) debris on beaches
(B) fewer game fish
(C) reduced algae growth
(D) poor water quality
Answer:
D
Explanation:
Clams naturally filter out contaminants in water
Without the clams, the water quality will drop dramatically, as the local ecosystem will lose its natural filtration system
Which of the following is a distinction between the Krebs cycle in eukaryotes and prokaryotes?
A. Prokaryotes do not use acetyl CoA.
B. The process occurs in the cytoplasm of Eukaryotes.
C. The process occurs in the mitochondria of Eukaryotes.
D. Eukaryotes do not produce carbon dioxide.
E. Prokaryotes do not produce FADH2.
Answer:
C. The process occurs in the mitochondria of Eukaryotes.
Explanation:
In eukaryotes: glycolysis takes place within cytosol, Krebs cycle within mitochondrial matrix & ETC within inner mitochondrial membrane. Prokaryotes undergo binary fission(only cytokinesis) & conjugation.Prokaryotes undergo binary fission(only cytokinesis) & conjugation. Eukaryotes perform mitosis, meiosis(both karyokinesis and cytokinesis).Therefore in prokaryotic cells, the citric acid cycle occurs in the cytoplasm; in eukaryotic cells, the citric acid cycle takes place in the matrix of the mitochondria.
Acetyl-CoA reacts in the first step of the eight step sequence of reactions that comprise the Krebs cycle, all of which occur inside mitochondria of eukaryotic cells. While the Krebs cycle does produce carbon dioxide, this cycle does not produce significant chemical energy in the form of adenosine triphosphate (ATP) directly, and this reaction sequence does not require any oxygen. Instead, this cycle produces NADH and FADH2, which feed into the respiratory cycle, also located inside of the mitochondria. It is the respiratory cycle that is responsible for production of large quantities of ATP and consumption of oxygen. In addition, the respiratory cycle converts NADH and FADH2 into reactants that the Krebs cycle requires to function. Thus, if oxygen is not present, the respiratory cycle cannot function, which shuts down the Krebs cycle. For this reason, the Krebs cycle is considered an aerobic pathway for energy production.
Hope this helps!
If you have any queries please ask.
Which scientist do you
think had the greatest
impact on our current
understanding of life?
Explain your answer.
Answer:
I think Sir Issac Newton is the correct answer
Isaac Newton, an English mathematician and physicist, is considered the greatest scientist of all time.
I think it will help you.
roots of trees slows down the breaking of rocks ture or false
Answer: true
Explanation: as roots of the plants grow deep it crushes the rocks causing a mechanical weathering process
What is kyphosis caused by?
Answer:
Back Pain and Stiffness; kind of relation to Hunchback?
Explanation:
It happens when we have poor posture; positioning our arms & shoulders not how we normally position them - it can also happen when carrying heavy stuff or slouching.
Answer:
The ligaments and muscles that support the vertebrae can extend as a result of poor posture in childhood, such as leaning back in seats and carrying heavy backpacks. Kyphosis occurs when the thoracic vertebrae are pulled out of their usual position.
Synthesize What instruments would you take along if you were going on a 3-month field study to measure how the weather on a mountaintop changes over the course of a season?
The instruments which will be taken along include the following:
ThermometerPsychrometerAnemometerWind vaneBarometerRain gaugeWhat is an Instrument?This is defined as a tool or device for doing a particular kind of work such as weather study etc.
The instruments listed above will help measure how the weather on a mountaintop changes over the course of a season.
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Two animals of different species would be least likely to
A) produce fertile offspring
B) have similar body structures
C) consume the same food
D) live successfully in the same
habitat
Answer:
A) produce fertile offspring
Explanation:
two paragraphs
explaining how carbon is
transferred within and
between organisms and the
environment.
Answer:
For example, in the food chain, plants move carbon from the atmosphere into the biosphere through photosynthesis. They use energy from the sun to chemically combine carbon dioxide with hydrogen and oxygen from water to create sugar molecules.
Describe: Carbon moves from living things to the atmosphere. Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants get rid of carbon dioxide gas through a process called respiration. Carbon dioxide is added to the atmosphere naturally when organisms respire or decompose (decay), carbonate rocks are weathered, forest fires occur, and volcanoes erupt. Carbon dioxide is also added to the atmosphere through human activities, such as the burning of fossil fuels and forests and the production of cement. Organisms play an important role in the carbon cycle in the following ways: Plants absorb carbon from the environment in photosynthesis and return it in respiration. Animals obtain their carbon by eating plants; they release carbon in respiration.
Explanation:
Which personality test breaks down the personality into five traits and can be used by job recruiters to select candidates?
The big five personality test is personality test breaks down the personality into five traits and can be used by job recruiters to select candidates.
What is Big five personality model?The big five personality trait model is the test that access the individual characteristics and what job role is best suited for them.
personality test evaluates candidates across five personality traits like openness , agreeableness ,experience, conscientiousness, extraversion and also neuroticism.
Therefore, The big five personality test tralit is personality test breaks down the personality into five traits and can be used by job recruiters to select candidates.
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Explain how a mutation may affect the evolution of a species.
Answer:
Mutation is important as the first step of evolution because it creates a new DNA sequence for a particular gene, creating a new allele. Recombination also can create a new DNA sequence (a new allele) for a specific gene through intragenic recombination.
Which of the following diagrams illustrates the position of t3
he sun an earth on the longest day of the year i in the northern hemisphere
Answer:
please provide clean image.......
Explanation:
in your desktop ️ I can't able to see anything....
Which statement describes the difference between ectothermic and endothermic animals?
Question 5 options:
Ectothermic animals live in cold climates, and endothermic animals live in warmer places.
Ectothermic animals live in the water, and endothermic animals live on the land.
Ectothermic animals have a lower body temperature than endothermic animals.
Ectothermic animals have a body temperature that is the same as their environment, and endothermic animals have a constant body temperature.
Answer:
Statement D
Explanation:
Ectothermic means cold-blooded, which means they can not generate there own heat or maintain a constant body temp.
But us as humans are Endothermic because we remain at a constant body temp, also known as warm-blooded.
How are 2 different dogs breeds different from a species ?
Answer:
The fact human skip them apart is crucial here. this is a commonly defined as "groups of interpreting natural populations that are reproductively isolated from other such groups."
Can anyone give a help with this please I have to submit it tomorrow!!
Answer:
Q.1: I can't help you with this, sorry :(
Q.2: Seaweed is the producer because it takes energy from the water and sun in thermal reactions.
Q.3: Phytoplankton is the second-order consumer because they eat first-order consumers.
Q.4: Whelks and crabs because they eat limpets, which eat producers, and they also eat seaweed.
Q.5: Gulls are carnivores because they eat the crabs, and so are crabs because they eat mullets
Q.6: Limpets and lobster would become less populated, but not yet endangered. Gulls would starve and probably disappear from this ecosystem.
Q.7: Whelks' numbers would decrease because of the number of lobsters consuming them, but then lobsters would starve because of the decline in their food. Then this would repeat, shaking the whole ecosystem.
Answer:
Question 2-7
Explanation:
Question - 2: Seaweed is the producer because it takes energy from the water and sun in thermal reactions.
Question - 3: Phytoplankton is the second-order consumer because they eat first-order consumers.
Question - 4: Whelks and crabs because they eat limpets, which eat producers, and they also eat seaweed.
Question - 5: Gulls are carnivores because they eat the crabs, and so are crabs because they eat mullets
Question - 6: Limpets and lobster would become less populated, but not yet endangered. Gulls would starve and probably disappear from this ecosystem.
Question - 7: Whelks' numbers would decrease because of the number of lobsters consuming them, but then lobsters would starve because of the decline in their food. Then this would repeat, shaking the whole ecosystem.
The study of fossils is called Paleontology
True
False
Answer:
True
Explanation:
The answer is fact checked
Which biologically-based therapy uses a drug to remove toxic amounts of
metal from the blood?
A. Herbal medicine
B. Diet therapy
C. Chelation therapy
D. Orthomolecular therapy
Answer:
Your answer is C) Chelation therapy
Explanation:
Chelation therapy is a method for removing heavy metals, such as mercury or lead, from blood. It's one of the standard treatments for many types of metal poisoning. Hope this helped :)
Chelation therapy is used to remove toxic amounts of metal from the blood. So, the correct option is C.
What do you mean by Drug therapy?Drug therapy may be defined as the process of treating, diagnosing, and preventing any specific disease with the help of chemical substances known as drugs.
Chelation therapy is given intravenously to the patients for the treatment of heavy metals exposure like mercury, lead, and chromium in the blood. After successful completion of chelation therapy, toxic heavy metals are removed via urination.
Therefore, chelation therapy is used to remove toxic amounts of metal from the blood. So, the correct option is C.
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Can somebody help please
Explanation:
what role did the south africa women play against the violation of human rights the 1950s to 1960s
1. What is the significance of the specific gravity of the abnormal urine?
Answer:
A very high specific gravity means very concentrated urine, which may be caused by not drinking enough fluid, loss of too much fluid (excessive vomiting, sweating, or diarrhea), or substances (such as sugar or protein) in the urine.
Explanation:
Urine specific gravity is a significant and convenient way to measure the abnormal urine. It indicates dehydration or presence of substances in the urine as in case of diabetes.
What is Specific gravity?
Urine specific gravity (USG) measures the concentration of particles which are present in the urine and the density of urine compared with the density of water. Measurement of USG is an easy way and very convenient way to know a patient's hydration status as well as the functional ability of kidneys.
Urine specific gravity falls between the range of 1.002 and 1.030 if the kidneys are functioning normally. However, if specific gravity results above 1.010 this can indicate mild dehydration in that person. The higher the number of specific gravity, the more dehydrated a person may be.
A very high specific gravity means very concentrated urine, which may be due to not drinking enough fluid, loss of too much fluid, or substances such as sugar or protein in the urine.
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Nitrogen makes up most of the Earth's atmosphere in the form of N2, a gas that does not easily undergo chemical reactions. What would ultimately happen if nitrogen stayed in the form of N2 and did not leave the atmosphere?
A.
Animals would run out of food.
B.
All life on Earth could end.
C.
Plants would eventually stop growing.
D.
all of these
Answer:
it must be denitrified.
Explanation:
Decomposition makes the nitrogen available to go through nitrification again. For nitrogen to return to the atmosphere in its gaseous N2 form,
list 7 things that hormones regulate.
Answer:
heart rate
metabolism
mood
appetite
reproduction
sleep cycles
growth
Explanation:
1. What is the purpose of the lab? Lab for modeling water
Answer:
The purpose of a lab is to entertain people and also give them a better understanding of science and it also makes you have fun
Explanation:
I did it before
A red blood cell has a diameter of about 7 micrometer. a microscope of resolving power 240nm ,can it resolve the details of the red blood cell of size 7 micrometer
Yes, it resolve the details of the red blood cell of size 7 micrometer because the microscope has more than 30 times magnification power.
What is magnification?Magnification is the ability of a microscope to produce an image of an object at a scale larger (or even smaller) than its actual size so we can conclude that it resolve the details of the red blood cell of size 7 micrometer because the microscope has more than 30 times magnification power.
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The diagram shows that a cottontail rabbit gained 400 KJ of energy when it consumed a plant. The cottontail rabbit was later eaten by a barn owl, but the owl only gained 50 KJ of energy from consuming the rabbit. Which statement best explains why only 50 KJ of energy was passed on to the barn owl?
Answer: The total energy passed from one level to the next is only about one-tenth of the energy received from the previous organism. This means that an animal eating a plant will only get about ten percent of the energy that is stored in the plant
Explanation: it may be lost as faeces, thermal energy or may not be digested properly to get the derived energy
Why can’t penguin fly?
Answer:
No they cannot fly
Explanation:
Penguins dont have any feather to fly with
Answer:
Well, in a sense they really do fly, only through the water, not through the air. Their wing bones are fused straight, making the wing rigid and powerful like a flipper. Penguins don't really need to fly because they dive deep, and swim so that they can catch their prey. Their bodies have huge fat supplies, heavy muscles, and densely packed feathers. There’s no way they could fly with such short wings and heavy bodies.
Explanation:
Hope this helps:)...if not then sorry for wasting you time and may God bless you:)
(PLEASE ANSWER WILL GIVE 20 BRAINLEST)
Gene therapy is a form of ______
Answer:
Gene therapy is a form of Narration.
Explanation:
Gene therapy is an experimental form of treatment that uses gene transfer of genetic material into an individual's cell to cure the disease. The idea is to modify the genetic information of the individual's cell that is responsible for a disease, and then return that cell to normal conditions.
Is any component more important than the others? Explain why or why not.
Answer:
hmm
E
Yeah. That's a tricky one.
Cells need energy.Give reason?
Answer:
because cell is cell and it is cell
Answer:
Cells need energy to keep them alive. Processes such as cell division, Active transport, and protein synthesis all require energy.
Explanation:
What do we mean when we say DNA strands run in opposite directions? A. They are antiparallel to each other. B. They are parallel to each other. C. They are perpendicular to each other. D. Their direction cannot be predicted.
They are antiparallel to each othe when DNA strands run in opposite direction.
What is antiparallel position?Antiparallel refer to two molecules of DNA that place side by side but in opposite directions and they never meet. The two strands of DNA are antiparallel. The head of one strand is laid against the tail of the other strand of DNA.
Therefore, They are antiparallel to each othe when DNA strands run in opposite direction.
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I need two paragraphs
explaining how carbon is
transferred within and
between organisms and the
environment.