Answers
Answer:
1st question:
Cell division is fundamental to all living organisms and required for growth and development. As an essential means of reproduction for all living things, cell division allows organisms to transfer their genetic material to their offspring.
2nd question:
Meiosis creates more genetic variation. This is because it produces 4 daughter cells, none of which are genetically identical, while mitosis produces 2 identical daughter cells (which are identical to the parent cell).
Related Questions
PLEASE HELP MEEEEE (AG)
Which of the following statements is true about photosynthesis and cellular respiration?
Both photosynthesis and cellular respiration occur in all living things.
Only cellular respiration occurs in all living things.
Photosynthesis occurs in the nucleus of the cell.
Only photosynthesis occurs in all living things.
Answers
Answer:
The answer is D.
Explanation:
Photosynthesis is the process through which plants utilize water and carbon dioxide to form glucose and oxygen.
You put a cat in an open cage with cat food, water, and a litter box (where the cat poops and urinates). The cage cat water food litter box weighs 2000 grams. Two weeks later, the cat has eaten all the food, has drunk all the water, and has grown a little bit bigger. The cat's waste (urine and poop) is still in the litter box. How much would you expect the cage cat litter box with poop and urine to weigh now
Answers
Answer:
it would weigh more than before
Explanation:
Which of the following is NOT an example of a biological model? (all answers choices 2nd slide)
Answers
Answer:
pictures of different ecosystems
Explanation:
i got it right
state the average value of GFR
Answers
Since GFR decreases with age , then the average value of GFR will be 90 to 120mL/min/1.73 m2
What is GFR?
GFR (Glomerular Filtration Rate) can be said to be the amount of plasma entering Bowman’s capsule per minute. It is the renal plasma flow × the fraction that enters the renal capsule (19 percent).578*0.19 = 110 mL filtrate/min. Glomerular filtration rate (GFR) is referred to as a blood test that checks to control how well your kidneys are working.
What is a normal GFR?We can deduce from the National Kidney Foundation, normal results range from 90 to 120 mL/min/1.73 m2. Older people will have lower than normal GFR levels, since GFR decreases with age
How can I improve my GFR?In other to improve and have a healthy GFR it is important to avoid regular in-take of processed foods and choose fresh fruits and vegetables instead. Following a low-salt diet is essential because of it effect on blood pressure.
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Having a weakness along a specific plane will allow a mineral to?
A. magnetize
B. cleave
C. fracture
D. streak
Answers
Explanation:
split or sever (something), especially along a natural line or grain.
pos, it is not too late to put some excellent strategies in place, hing up on exam writing techniques and creating a positive study environment to natrics can achieve their best results. Overall, Grade 12 learners can focus on ways to Er anxiety on the day of the exam, -making the experience a more pleasurable one. Adapted from https https://www.news24.com Accessed on the 28th October 2022 sly completing a task in a thorough and responsible manner. QUESTIONS Define the term 'stressor' and mention IWO reasons why Grade 12 learners could view their National Senior Certificate (NSC) exams as a stressor. (1+2) (3) Mention THREE study methods that matrics/Grade 12s could use to study their work more effectively. (3x1) (3) Describe THREE physical symptoms of stress which could make it difficult for Grade 12 learners to effectively study for their National Senior Certificate examination. (3x2) (6) Discuss THREE exam writing techniques which could enhance the Grade 12's performance in an examination. (3x2) (6)
Answers
Answer:
Answers:
A stressor is any event or situation that causes stress or anxiety. Grade 12 learners could view their National Senior Certificate (NSC) exams as a stressor for the following reasons:
The importance attached to the exams as they are critical in determining their future academic and career opportunities.
The pressure to perform well from parents, teachers, and peers.
Three study methods that matrics/Grade 12s could use to study their work more effectively are:
Creating a study timetable to manage their time efficiently and ensure that they cover all the necessary topics.
Breaking down complex topics into smaller, more manageable chunks to facilitate easier understanding and recall.
Practicing past papers and quizzes to test their knowledge and identify areas that require more attention.
Three physical symptoms of stress which could make it difficult for Grade 12 learners to effectively study for their National Senior Certificate examination are:
Headaches or migraines
Fatigue and tiredness
Stomach problems such as indigestion, nausea, or vomiting
Three exam writing techniques which could enhance the Grade 12's performance in an examination are:
Reading the instructions and questions carefully to ensure that they understand what is being asked of them.
Planning their answers by brainstorming ideas and organizing their thoughts before starting to write.
Time management by allocating time for each question and ensuring that they complete the exam within the allocated time.
Note: The total marks for the questions are 18.
which of the following is true about steroid biosynthesis? which of the following is true about steroid biosynthesis? the biosynthesis of cholesterol uses 2 molecules of dimethylallyl pyrophosphate and four molecules of isopentenyl pyrophosphate squalene is oxidized to squalene 2,3-epoxide that then is cyclized to form lanosterol the head-to-head condensation of 2 molecules of farnesyl pyrophosphate to squalene uses a molecule of nadph the biosynthesis of isopentenyl pyrophosphate from mevalonate involves three molecules of acetyl-coa
Answers
(ii)The head-to-head condensation of 2 molecules of farnesyl pyrophosphate to squalene uses a molecule of nadph the biosynthesis of isopentenyl pyrophosphate from mevalonate involves three molecules of acetyl-coa is True about steroid biosynthesis.
Anabolic biochemical mechanism called steroid biosynthesis creates steroids from simple components. Animals follow a distinct biosynthetic pathway from many other organisms, making the process a popular target for antibiotics and other anti-infective medications. The mevalonate pathway, which employs acetyl-CoA as a building block to create dimethylallyl pyrophosphate (DMAPP) and isopentenyl pyrophosphate, is used in the production of steroids in humans and other animals (IPP). Geranyl pyrophosphate (GPP), which is created by the combination of these two chemicals, is then transformed into the hydrocarbon polyene squalene. Lanosterol, the initial steroid in the cycle, is created following an oxidation and several rearrangements. Different steroids can be produced through additional conversions.
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Corrected question:
Which of the following is true about steroid biosynthesis?
(i)the biosynthesis of cholesterol uses 2 molecules of dimethylallyl pyrophosphate and four molecules of isopentenyl pyrophosphate squalene is oxidized to squalene 2,3-epoxide that then is cyclized to form lanosterol.
(ii)the head-to-head condensation of 2 molecules of farnesyl pyrophosphate to squalene uses a molecule of nadph the biosynthesis of isopentenyl pyrophosphate from mevalonate involves three molecules of acetyl-coa
How do cells behave in a multicellular protist?They don't exhibit cell specialization.They exhibit cell specialization.They're missing mitochondria.They share nuclei between cells.
Answers
Answer: They don't exhibit cell specialization.
Explanation: Multicellular protists, however, do not show cellular specialization or differentiation into tissues. That means their cells all look the same and, for the most part, function the same. On the other hand, your cells often are much different from each other and have special jobs.
Deer mice are usually dark brown and live in forests with dark soil. However, the deer mice in the Sand Hills of Nebraska are lighter brown and live in an area with light, sandy soil.
Based on this information, what ,begin emphasis,most,end emphasis, likely caused the change in the Sand Hills deer mice?
Answer options with 4 options
A.
Lighter colored mice were preferred by females.
B.
Lighter colored mice came from snowy habitats in the north.
C.
Lighter colored mice had more dominant genes in their new habitat.
D.
Lighter colored mice were more likely to avoid predators and to reproduce.
Answers
Lighter colored mice were more likely to avoid predators and to reproduce. Therefore, option (D) is correct.
The lighter brown coloration of the deer mice in the Sand Hills of Nebraska is likely an adaptation that provides them with a survival advantage in their specific habitat. The light, sandy soil in the area may offer better camouflage for lighter colored mice, making them less visible to predators and increasing their chances of survival.
As a result, these mice would have a higher likelihood of successfully reproducing and passing on their lighter coloration traits to future generations.
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The sensor or detector tells the integrating center what needs to be done
True
False
Answers
Answer:
True
Explanation:
It is true because a sensor or detector is an organ that detects external stimuli from the environment or changes in both internal and external environment, it then send the information to the integrating center.
The integrating center receive stimulus or information from sensor and activate responses to the stimulus.
In the Landolt-C acuity test, the average threshold for accurately identifying the position of the gap in the C-like character was 0.75mm in size, at a distance of 3000mm. What angle is subtended by the gap at this acuity threshold? Show your working and give your answer in Minutes of arc.
Answers
Answer:
0.859 minutes of arc
Explanation:
The arc length for a given radius and angle in radians is ...
s = rθ
So, the angle is ...
θ = s/r
For the given geometry, the angle in radians is ...
θ = (0.75 mm)/(3000 mm) = 0.00025 radians
In minutes of arc, this is ...
(0.00025 radians)(60 minutes/degree)(180 degree/(π radians)
= (0.0025)(60)(180)/π minutes
≈ 0.859 minutes
The angle subtended is about 0.859 minutes of arc.
what is an element found in Earth's core
Answers
Answer:
Iron
Another Answer:
Nickel
Answer:
Primarily iron-nickel alloys in both solid and liquid forms.
Explanation:
Unlike the mineral-rich crust and mantle, the core is made almost entirely of metal—specifically, iron and nickel. The shorthand used for the core's iron-nickel alloys is simply the elements' chemical symbols—NiFe. Elements that dissolve in iron, called siderophiles, are also found in the core.
How did Charles Darwin's discovery of Natural Selection affect how people viewed evolution at the time? Why was it problematic?
Answers
Answer:
Darwin's theory revolved around survival of the fittest. This meant that only the organisms that were better adapted to the environment would survive, and those that didn't died (and maybe become extinct). The desired characteristics that helped the particular organism to survive, would then be classed as the dominant allele. This could now be passed onto offsprings.
People didn't know much about genetics we only really began to understand it 50 years after the theory was published. Darwin's theory started to help scientists understand how certain traits and diseases could be spread from parent to offspring. Darwin used natural selection to evaluate that humans are descendants from apes. This was problematic because many people thought that God created humans, many scientists argued that Darwin didn't have enough evidence to support his theory.
Explanation:
Hope this helps!
What is the function of nitrogen fixing bacteria
Answers
Answer:
microorganisms capable of transforming atmospheric nitrogen into fixed nitrogen (inorganic compounds usable by plants). More than 90 percent of all nitrogen fixation is effected by these organisms, which thus play an important role in the nitrogen cycle.
what do you call the very fine particles that you formed after pounding the pieces of rocks with a hammer
Answers
Answer:
fine particles (silt and clay) are moved to areas of still water (off-shore settings). the majority of these particles are made up of clay minerals, which are weathering products of feldspars and ferro-magnesian minerals.
Answer:
You call them minerals
Explanation:
For Forensics Please Help Thanks!
Estimate the approximate time of death for the following situations:
A body was found completely relaxed.
A body is found exhibiting rigor in the chest arms face and neck.
A body is found with most muscles relaxed except for the face.
A body is found with rigor in the legs but no rigor in the upper torso.
Answers
Answer:
C
Explanation:
A Body is found with most Muscles Relaxef except for the face... because your brain take sometimes to go dead after you have passed away or can be keeping alive if its added into a Jar of water
Explanation:
Contribution of prophase stage of mitosis cell division to growth of plant
Answers
Answer:
It helps organisms grow in size and repair damaged tissue some species of algae are capable of growing very quicklyExplanation:
May be this can help ❣️❣️❣️❣️
Question: Explain why you think taking care of the earth and its resources is more important than ever.
Pls pls pls, help me.
Answers
Answer:
i think that taking care of the earth important because the earth is where we live and if we do not take care of the earth we wont have a nice place to live
What are the molecules plants use in photosynthesis,
and how do these molecules get in the plants in the first place?
Answers
DNA consists of two strands with complementary pairs of nucleotides. Match each strand of DNA with its complement
CATGGAT
Answers
DNA consists of two strands with complementary pairs of nucleotides therefore each strand of DNA with its complement will be matched as the following below:
CATGGAT - GTACCTA
What is DNA?
This is referred to as deoxyribonucleic acid and it is known as the genetic material of most organisms which ensures that traits are passed from the parent to the offspring.
The nitrogenous bases are complementary such that Adenine binds Thymine and Cytosine binds with Guanine which is therefore the reason why GTACCTA was chosen as the correct choice.
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What kinda of polymer is in the image below?
Answers
Answer:
polypeptide
Explanation:
Its the answer.
HELPPPP WILL MARK BRAINLIEST David Fee studies sound waves so deep and low that humans cannot hear them. What are these low frequencies called?
A infrared
B seismology
C geosound
D infrasound
Answers
Answer: infrasound
Explanation:
The infrasound is called as the low frequency sound. The frequency of these sounds is less than 20 Hz. The sound waves of the infrasound cannot be perceived by the humans as human ear are less sensitive to the low frequency. The infrasound can be produced in extreme weather conditions, earthquakes, meteor impacts, explosive detonation, collision of oceanic waves, waves on beach, and sound produced by the air conditioner.
Answer:
Infasound
Explanation:
took it and got a hunderd
How do I do this
and any tips to get this done fast
Answers
Answer : 1/9
PLEASE HELP!!!!!!!!!!!!!!!!!! Dr. Budai is determined to find the best solution to help the hotel, the new species, the butterflies, and the flowering plants coexist in the same location. She is hoping to accomplish this goal by genetically modifying one of the three organisms: the new species, the butterfly, or the flowering plant.
Now that you have explored modifying a trait for one of the species in the previous activity, answer the following questions.
question 1.What was the species and trait you investigated?
question 2.Why do you think the modification you explored would best help the organisms and hotel coexist? Explain your reasoning.
question 3. Dr. Budai is hoping you can help design a different modification from the one you already explored. What modification would you suggest? Do you think it would be more or less beneficial than the modification you discussed in Question 2? Explain your reasoning.
Answers
The answers include the following:
The species and trait you investigated was the the flowering plant and the trait was the bright colored flowers. The modification I explored would best help the organisms and hotel coexist such that it will ensure that the hotel is beautified and the organism will be be attracted to the pollen grains as food.The modification I would suggest is for more nectar to be present and it would be more beneficial due to more pollination occurring.What is Pollination?This is referred to as the transfer of pollen from an anther of a plant to the stigma of a plant, later enabling fertilization and the production of seeds.
The modification would best help the organisms and hotel coexist such that it will ensure that the hotel is beautified and provide it with an aesthetic feeling by the visitors.
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hich of the following phrases incorrectly finishes this statement? a genetic disease that causes death in infancy and has an autosomal recessive inheritance pattern can persist in a population because
Answers
The phrase which incorrectly finishes this statement is that if both parents are carriers, they have a 50% chance of having normal children.
What is an Autosomal recessive disorder?This is the type of disorder which involves two copies of the mutation being sufficient enough to cause the disease.If both parents are carriers, then the chance of having normal children is zero and not 50 percent.
What is a typical 7-year-old?Today's kids can dress themselves, tie their shoes, and grasp a ball using their hands more easily.The need for independence from of the family has increased.Because of events like starting school, children at this age engage in a lot of outside interaction.
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Which line is the endpoint of a ray
Answers
Answer:
A ray is a part of a line that has one endpoint and goes on infinitely in only one direction. You cannot measure the length of a ray. A ray is named using its endpoint first, and then any other point on the ray
Explanation:
Answer:
the starting point of the ray
Explanation:
Background: You are a senior scientist at the CDC. While reviewing reports you see that there is a new infection that has surfaced in a local county. The agent who managed the incident wrote this in their notes:
“…..Infection spreads rapidly through physical contact. Once on the skin, this organism is able to break down keratin and infect the lower portions of the dermis. This organism has a Gram+ cell wall, is circular in appearance and very small. While not a traditional medication, the patient responded well to a drug that targeted mitochondria….” Do you think that this is the best medication to use on the patient? Explain why this medication would or would not work.
Thanks!
Answers
While the notes indicate that the patient responded well to the drug, there is no information provided about the mechanism of action of the drug or the specific type of infection that the patient had. It is also unclear whether the drug was specifically designed to treat this type of infection or if it was used off-label.
Additionally, while the notes mention that the organism has a Gram+ cell wall and is circular in appearance, there is no information about its genetic makeup or other characteristics that could provide insight into the most effective treatment options.
Therefore, it is not possible to say definitively whether the drug that targeted mitochondria is the best medication to use on the patient without further information. As a senior scientist at the CDC, I would recommend conducting further research and testing to identify the most effective treatment options for this new infection.
Lateralization is defined as
Answers
Answer:
Hola hay hola buenos días para todos ustedes que
A shared standard of acceptable behavior is.
A) a social trap
B) discrimination
C) the just world phenomenon
D) a social norm
Answers
Answer:
D) a social norm
what should we do as a society to reduce the
amount of microplastics that end up in aquatic ecosystems?
Answers
Answer: Recycle, use less plastic, don’t waste.
Explanation: those are a few, but there are many other ways.