The wolf, like other large predators, is a key species in the functioning of ecosystems, since they regulate food chains from the top link. Now, with the excessive hunting of this great predator, there is an ecosystem imbalance because the food web where the wolf is involved would be destabilized. The absence of these carnivores can cause populations of their prey such as herbivores (moose) to increase dramatically and the vegetation of the natural area to be affected due to excessive herbivorous activity. This can cause biodiversity to be affected because the riparian forests (willows, poplars, alders) can be destabilized and therefore also the banks of the rivers. Therefore, the loss and deterioration of habitats is the main cause of biodiversity loss.
We can conclude that the correct answer is:
Answer:15. Ecosystem imbalance due to the destabilization of the food web where the wolf is involved.
16. The absence of these carnivores can cause populations of their prey such as herbivores (moose) to increase dramatically and the vegetation of the natural area to be affected due to excessive herbivorous activity. This can cause biodiversity to be affected because the riparian forests (willows, poplars, alders) can be destabilized and therefore also the banks of the rivers. Therefore, the loss and deterioration of habitats is the main cause of biodiversity loss. In fact, many scavenger species (magpies, eagles, ravens, bears) depend on wolves because they can prey on the remains of wolf prey. If there is damage to the vegetation of the natural area due to the excessive hunting of wolves, many birds would be affected, as well as beavers, amphibians, reptiles, and fish.
17. First of all, new or novel herding devices and herding methods must exist so that wolves do not get used to them and lose their natural wariness and caution. Increasing risk perception in wolves can help reduce livestock deaths caused by wolves. On the other hand, it is also possible to build pens to keep the cattle overnight in a small paddock, instead of fencing off large paddocks of many hectares. Finally, sheep and goat farmers around the world have been seen to use guard dogs to guard their livestock against carnivores and in most cases, the mere presence of the dogs seems to help keep wolves away from livestock.
Keeping a good record of the number of wolves in a natural area can be a valuable tool in resolving cattle-wolf problems. Observation records can help identify trends, problem areas, and vulnerable times of the year, helping to increase the effectiveness of preventative measures. For example, keeping good records helps identify grazing areas where predator problems repeatedly occur.
help help help help......
The correct answer is as follows:
D. Anaphase
B. Prophase
E. Telophase
E. Telophase
A. Interphase
C Metaphase
E. Telophase
E. Telophase
B. Prophase
C Metaphase
A. Interphase
E. Telophase
E. Telophase
E. Telophase
What is anaphase and prophase?The mitotic phases are: The chromosomes shorten and thicken during prophase. Chromosomes align in the center of the cell during metaphase. Chromatids split off at the centromere and migrate to opposite poles during anaphase. Telophase: Following the reorganization of nuclear envelopes around each cluster of chromosomes, two nuclei are created.
The correct answer is as follows:
D. Anaphase
B. Prophase
E. Telophase
E. Telophase
A. Interphase
C Metaphase
E. Telophase
E. Telophase
B. Prophase
C Metaphase
A. Interphase
E. Telophase
E. Telophase
E. Telophase
The complete question is:
Matching: match the term to the description
A. Interphase
B. Prophase
C Metaphase
D. Anaphase
E. Telophase
F. Cytokines
1. The sister chromatids are moving apart.
2. The nuclear membrane begins to fade from view.
3. A new nuclear membrane is forming around the chromosomes.
4. The cytoplasm of the cell is completely divided.
5. The chromosomes become unorganized, reappearing as chromatin.
6. The chromosomes are lined up along the center of the cell.
7. The nuclear membrane begins to fade from view.
8. The chromosomes are moving toward the opposite poles of the cell.
9. The spindle fibers are formed.
10. Spindle fibers grow longer and attach to chromosomes at the centromere,
11. Two identical daughter cells are formed.
12. The cytoplasm is completely pinched in two.
13. Chromosomes are replicated.
14. The chromosomes return to their threadlike form.
15. The cell is growing and carrying out normal life functions.
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A person without the allele for sickle cell anemia has children with a person who is a carrier for sickle cell anemia but doesn’t have the disease. What percentage of their children will have sickle cell anemia? What percentage of their children will be carriers for sickle cell anemia? Show your work with a Punnett square. Queen pls I need help ASAP
Sickle cell anemia is an inherited autosomal recessive disease, which means that only the homozygous recessive individuals have the disease, heterozygous individuals are carriers, and homozygous dominant individuals are normal.
Let "N" represent the normal gene, i.e. without the mutation, and "S" represent the gene with the sickle cell mutation.
The genes of the parent without the disease will be NN, and it will produce gametes with the normal allele "N"
The genes of the parent that carries the disease will be NS and will produce gametes with the normal allele "N" and the recessive allele "S"
For both parents, each allele will have a 0.50 probability, this is granted by the random segregation of genes during meiosis.
To construct the Punnet square, you have to write the gametes of one of the parents in the first row and the gametes of the second parent in the first column. Write the corresponding probabilities for each gamete in each cell:
Cross each column with each row to determine the gene combination of the offspring:
When you cross the first column with the first row, the resulting genotypes will be NN, to determine its probability you have to multiply the probability of the individual inheriting each allele:
[tex]P(N)\cdot P(N)=0.5\cdot0.5=0.25[/tex]Write the result in the Punnet square:
Repeat for all combinations:
-First-row + second-column, the genotypes for the offspring will be NN, and its associated probability is equal to the product of the probabilities of each allele:
[tex]P(N)\cdot P(N)=0.5\cdot0.5=0.25[/tex]-Second-row + first-column, the genotypes of the offspring will be NS, and the associated probability is equal to the product of the probabilities of inheriting each allele:
[tex]P(N)\cdot P(S)=0.5\cdot0.5=0.25[/tex]-Second-row + second-column, the genotypes of the offspring will be NS, and, as before, the probability associated will be:
[tex]P(N)\cdot P(S)=0.5\cdot0.5=0.25[/tex]Write the results in the Punnet square:
As you can see, the offspring will have two possible genotypes NN and NS, to determine the percentage for each you have to add the probabilities of the cells that show the same genotype:
[tex]P(NN)=0.25+0.25=0.50[/tex][tex]P(NS)=0.25+0.25=0.50[/tex]So, 50% of the children will be homozygous dominant (NN) and 50% of the children will be heterozygous (carriers).
As you can see, since there was only one parent that carried the allele S, there is no possibility that their children will carry the homozygous recessive genotype SS. The probability of their children having sickle cell anemia is 0%
Tai grows plants in a container called :
terrarium, as shown below. He keeps the
terrarium on a sunny windowsill.
The terrarium is closed, so Tai cannot add water to
the plants. However, the plants have enough water
to grow. Which of these statements best explains
why the plants always have enough water?
A. The air cannot hold all of the water vapor.
B. Water is unable to evaporate from the soil.
C. The plants take up
water and store it in their
stems and leaves.
Energy from the sun cycles water through th
soil, the plants, and the air.
The plant always has enough water because of condensation, because water cannot escape from the terrarium and evaporate from the soil.
What is soil?A mixture of organic material, minerals, gases, liquids, and living things make up soil, often known as earth or dirt, and they work together to support life. Certain scientific definitions separate dirt from soil by limiting the former term to just displaced soil.
The soil matrix is a solid phase made up of minerals and organic materials, whereas the soil atmosphere is a porous phase made up of gases and water (the soil solution). Soil is a three-state system composed of solids, liquids, and gases. The interaction of the soil's parent materials (initial minerals), organisms, and the climate, as well as relief (elevation, orientation, and slope of the terrain), results in the formation of soil.
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James measured the humidity of the air in his back yard each morning for four days. His data is recorded below.
Day Humidity
1.
52%
II.
46%
75%
98%
On which day did it most likely rain?
OA. Day I
OB. Day II
OC. Day III
OD. Day IV
III.
IV.
According to the given data It most likely rain on Day 4 98%.
The correct option is D.
Briefing:The relative humidity is typically between 90 and 99 percent when it is raining, but it is rarely greater than 100 percent. Rain happens when water droplets get too large to be maintained in the atmosphere and fall to the ground. Clouds are created when invisible water vapor gas condenses to visible water droplets.
Why is humidity more on rainy days?The water vapour content controls the amount of rainfall during extremely strong downpours, in which all of the water in the atmosphere is frequently soaked out. We are more likely to experience rain when the humidity is higher because water vapor expands at a faster rate.
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The complete question is -
James measured the humidity of the air in his back
yard each morning for four days. His data is
recorded below.
Daily Humidity Chart:
Day 1 52%
Day 2 46%
Day 3 75%
Day 4 98%
On which day did it most likely rain?
A. 1
B. 2
C. 3
D. 4
Near the ground, cool high-pressure air rises descends, heats up, and drops in pressure. The air then rises descends again, cools down, and the pressure increases. Air continues to circulate, creating wind.
The air then rises descends again, cools down, and the pressure increases. Air continues to circulate horizontally creating wind.
What is Wind?This is referred to as the moving form of air which is present and it is commonly as a result of the uneven heating of the Earth by the sun and the rotation of the earth.
The air which continues to circulate horizontally creates wind and the ones with a high pressure move to the areas with a low pressure. In the atmosphere, wind is responsible for certain activities such as in the reduction of the risk of suffocation as a result f the presence of many gases.
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where can I identify the benefits associated using the various forms of energy?
Solar energy is an apparent infinite source of energy, which alleviates the pressures associated with raw materials searching. Given said that, solar energy could be conceived as the more parsimonious source of energy, as it is the motor of biological systems that gave rise to life as we know (that is, photosynthetic organisms). So, to sum up, it is "infinite", cheap, and easy to exploit (at least in tropical latitudes).
You are conducting an experiment and create a stock solution. You then add 1 ml of the stock solution to 99 ml of water. What is the dilution of this sample? X = times more dilute)
A. 0.1x
B. 10x
C. 100x
D. 1000x
The dilution of 1 mL stock in 99 mL of water is a 100-fold dilution. Option C.
What is a 100-fold dilution?A 100-fold dilution is a dilution involving 1 part of the stock solution and 99 parts of diluting solvent.
A stock solution is a standard solution from which solutions of lower concentrations can be prepared by dilution.
Thus, when you take 1 mL of a stock solution and dilute it with 99 mL of water, you are carrying out a 100-fold dilution with water being the solvent used in dilution.
A 100-fold dilution is different from a 1000-fold. The latter requires 1 part of the stock solution in 999 parts of diluting solvent.
For 10-fold dilution, 1 part of the stock is taken and diluted with 99 parts of the diluting solvent.
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Before reaching the eardrum, sound waves must pass which parts of the ear?
Question 13 options:
Pinna and stirrup
Anvil and stirrup
Auditory canal and Eustachian tube
Pinna and auditory canal
Before reaching the eardrum, sound waves travel to Pinna and the auditory canal.
Longitudinal waves square measure what conjures sound. Compressions and rarefactions also are a gift in longitudinal waves after they undergo any given medium.
Sound waves enter the external organ and undergo the meatus, a tiny low tunnel that connects to the membrane.
When sound waves enter the ear, the membrane vibrates, causing these vibrations to 3 little bones within the cavum. The auditory ossicle, incus, and stirrup square measure the names of those 3 bones.
Hence, the correct answer is (d) Pinna and auditory canal.
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How did the different environmental factors (WIND, HEAT, LIGHT) affect the transpiration rates of all plants?
These factors are the same climatic factors that can either promote or inhibit plant growth and development and, eventually, crop productivity.
in the case of WIND HEAT AND LIGHT, they all increase the transpiration rates of the plants
When leaves turn color in the Autumn, this is a sign of a______change.
A. Chemical
B. It depends, no answer
C. Both A and B
D. Physical
When leaves turn color in Autumn, this is a sign of a chemical change.
What is a chemical change?A chemical change occurs when one chemical substance is changed into one or more distinct chemicals, like when iron is changed into rust.A chemical change occurs when one material transforms into another, new materials with distinct properties are created, and one or more new substances are created.When two substances combine to create a new substance, it happens as a result.Chemical changes are what cause changes like the fall leaf color change. Chemical processes are involved.When chlorophyll degrades, the green color of the leaves vanishes and is replaced by hues of yellow to orange that contributes to the beauty of the fall season. When other chemical processes take place simultaneously, red anthocyanin pigments develop and create new colors.To learn more about chemical change, refer
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I NEED HELP RN PLSSSS
The process of evolution causes a population's genetic makeup to change throughout time. A new species, changed genes, and novel features can arise as a result of an organism's adaptations to its environment.
What is adaptive and maladaptive in an organism?When fitness costs outweigh fitness advantages, a characteristic is considered maladaptive. A trait is considered adaptive if fitness benefits outweigh costs.
Maladaptive features can arise for a variety of causes, although they can also develop as a result of environmental changes that affect an organism (due to phenomenons such as climate change.)
Therefore, adaptive and maladaptive in an organism help in survival.
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SpaceX founder and CEO Elon Musk is among many companies and of countries who is planning to establish a civilization on planet Mars, if given the chance to be part of the mission to be the first human on Mars will you consider spending the rest of your life in the planet? If yes, what will be your plans to establish a civilization on the planet? If no, what are your reasons to stay? Write your reflection in 3-4 sentences.
Answer:
No because life on mars would be very difficult as the gravity on mars is only one-third of on earth, it will cause cardiovascular diseases and bone loss so you will have to exercise a lot.
Explanation:
I need to identify if the intracelular on the picture is the part bellow or on top of the membrane
Considering the glycocalyx is associated with the external side of the membrane, we can assume the extracellular space is at the top of the membrane, while the intracellular space is below it.
What is the cell membrane composition?
The cell membrane is composed of two lipidic bilayers, cholesterol, proteins, and glucans incrusted in between.
⇒ Lipids
· Phospholipids are amphipathic molecules.
· They have hydrophilic heads facing the exterior and the interior of the cells and hydrophobic tails that arrange against each other in the interlayer space.
· Lipids can easily change places with other lipids by lateral diffusion in the same layer.
· They can diffuse transversally to the other layer but not as easily as lateral diffusion.
· There are also other lipidic movements such as rotational diffusion that imply the rotation of the molecule.
⇒ Cholesterol
These molecules are incrusted in the membrane between the hydrophobic tails of lipids.
⇒ Proteins
Integral proteins are permanently associated with the membrane. They accomplish many different functions such as substances transport, cellular receptors, and cellular adhesion, among others.
→ Transmembrane proteins ⇒ span the entire membrane
→ Monotypic integral proteins ⇒ attached to only one of the lipidic layers
Integral proteins provide structure to the plasmatic membrane.
Periferic proteins are in the internal or external surface but not incrusted in the membrane.
⇒ Carbohydrates
Carbohydrates associate with lipids and proteins to compose glycolipids and glycoproteins. They are mostly located in the external lipidic monolayer, facing the cell exterior.
When talking about glycocalyx we are referring to the whole group of carbohydrates located on the external side of the membrane.
Carbohydrates have two main functions,
cell recognition and binding spotstructural and physical barrierAccording to this information, we can assume that the extracellular space is located on tue top of the membrane, while the intracellular space is bellow the membrane.
Many more glycolipids and glycoproteins (glycocalyx) located in the superior bilayer suggests that the extracellular space is on the top.
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Which type of financial aid will not be identified in the Free Application for
Federal Student Aid (FAFSA)?
A. Pell Grants
B. Private scholarships
OC. PLUS loans
OD. Work-study programs
What is a possible reason for abnormally low heart rates?
Bradycardia is a gradual than the normal heart rate. Having bradycardia means that the heart beats lesser than 60 times in one minute. It can be caused by several medical conditions such as heart tissue damage due to aging, congenital heart defect, myocardia, hypothyroidism, and damage to heart tissue due to heart attack.
Answer - Option 2 - underlying medical condition.
why do chemicals from the endocrine system not cause every tissue to function as they pass them on thei journey through the body?
please help me T-T
Answer: Chemical messengers from the endocrine system (hormones) will only bind to specific receptors on target cells. If the cell does not have the receptor for said messenger, the messenger will not bind and the cell will not change in function.
Explanation:
Match the letters with the numbersLETTERSa. RNAb. ribosec. tRNAd. protein synthesise. transcriptionf. central dogma of molecular biologyg. rRNAh. mRNANUMBERS1. DNA -> RNA -> protein2. carries genetic code from the nucleus to the cytoplasm3. the process of building a protein from the genetic code4. sugar ir rRNA5. single stranded nucleic acid6. creates the structure of a ribosome7. brings amino acids to the ribosomes
a. RNA is a single stranded nucleic acid (number 5)
b. ribose is the sugar in RNA molecules (number 4)
c. tRNA brings amino acids to the ribosomes (number 7)
d. protein synthesis is a conceot related to the process of building a protein from the genetic. code (number 3)
e. transcription is the process of making an RNA copy, but it is not listed on the numbers category.
f. the central dogma of molecular biology states that the instructions for making a protein are contained in the DNA molecule, which are copied by RNA (DNA -> RNA -> protein) (number 1)
g. rRNA bounds itself to ribosomal proteins to create the structure of a ribosome (number 6)
h. mRNA carries genetic code from the nucleus to the cytoplasm (number 2)
How might genetic and environmental factors work together to determine the phenotype of an organism? Use human height as an example in your explanation.
The phenotype of an organism, this is the characteristics that are expressed, such as height is affected by a number of factors.
Genes play an important role influencing the organism's phenotype, but they are not the only factor. Environmental factors such as temperature, oxigen levels, light, humidity and the availability of nutrients can also affect the phenotype of an organism.
As an example, if we look at the height of a person, we can see that this phenptype is not only influenced by his or her genes, but also by environmental factors such as the person's nutrition. Also height can be influenced by other environmental factors such as the mother's health and nutrition during pregnancy (this could be directly related to the socioeconomic factors affecting the mother.
Complete the sentence unlike mitosis, meiosis results in the formation of (two or four) genetically (identical or different ) cells .
The result of meiosis is:
1. Four genetically different cells
2. Each nucleus is haploid and has a unique set of chromosomes.
3. Differences between haploid nuclei result from crossing over during prophase I and random segregation of homologous chromosomes during anaphase I.
We can conclude that the correct answer is:
Answer:unlike mitosis, meiosis results in the formation of four genetically different cells.
How does the definition of a mineral differ between a miner and a geologist?
A miner defines a mineral as any naturally occurring inorganic solid that has a particular
crystalline structure and can be represented by a chemical formula, and a geologist defines a
mineral as anything taken from the ground.
A miner defines a mineral as anything taken from the ground, while a geologist defines a mineral
as any naturally occurring inorganic solid that has a particular crystalline structure, and can be
represented by a chemical formula.
A miner defines a mineral as an organic compound, while a geologist defines a mineral as a
naturally occurring element or vitamin.
There is essentially no difference in how a miner and a geologist define minerals.
The miner does not know the composition of the mineral but the geologist does. Option B
Who is a miner?The term miner has to do with any person who have been trained to be able to extract minerals from under the ground. This implies that the person is able to excavate the ground and just get the mineral out without minding what kind of mineral that have just been extracted.
On the other hand, the geologist is concerned about the structure of the mineral that have been extracted from the ground. The geologist wants to know the kind of substances that could be found in the mineral.
We can then say that; A miner defines a mineral as anything taken from the ground, while a geologist defines a mineral as any naturally occurring inorganic solid that has a particular crystalline structure, and can be represented by a chemical formula.
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how has china's population changed since 1950? what is the relationship between the availability of resources and population?
From 1960 to 2015, the population increased to around 1.4 billion people. China's population increased dramatically under Mao Zedong, from 540 million in 1949 to 969 million in 1979. The 1979 implementation of the one-child policy caused a slowdown in this increase.
The one-child policy in China is partially to blame for China's enormous population and comparatively tiny youth population. In late 1981, China's population surpassed 1 billion.
In December 2021, there were 1.413 billion people living in China. Han Chinese made up 91.11% of the population in 2020, and minorities made up 8.89%. China has the 159th-lowest population growth rate in the world, at about 0.03%. The sixth national population census in China was held in 2010, and the seventh census was finished in late 2020, with results made public in May 2021. The data on this page, unless otherwise noted, solely applies to mainland China; see also Demographics of Hong Kong and Demographics of Macau.
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List and describe the substrates and products of TCA cycle
The TCA cycle's starting and stopping requirements include the acetyl group, oxaloacetic acid, coA, citric acid, and others.
What is the TCA cycle, and what makes up the TCA cycle?
Tricaboxylic acid (TCA), commonly known as Krebs cycle, requires acetyl coenzyme A and a particular quantity of water to begin.
An substantial amount of citric acid is produced during the initial reaction between water and acetyle coA.
A molecule of coA is released as a result of this process, which is catalysed by the enzyme citrate synthase.
The following stage is isomerization, in which a substrate is converted from citrate to isocitrate.
Following decarbocylation, alfa ketoglutaric acid is produced, and succinyl coA is then oxidised to OAA in TCA cycle.
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Which of the following is an accurate statement about the microcentrifuges we use in class?
A. The ONLY use is to pellet cellular debris
B. All of the options are correct
C. You must close both the internal and external lids
D. All of the centrifuge tubes must be on the same side of the rotor
The statement you must close both the internal and external lids is correct about the use of microcentrifuges that we can use in class (Option C).
What is a microcentrifuge?A microcentrifuge is a tool used in molecular biology laboratories to separate biological particles in function of their density and or sedimentation coefficient, which is achieved by reaching many thousands of revolutions per minute (rpm), which contain two lids that need to be closed before to use.
Therefore, with this information, we can conclude that microcentrifuges can be used to separate substances and has two different lids.
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Which of the following areas of the brain is refered to as our "emotional/motivational" brain?Select one:a.limbic systemb.sympathetic systemc.somatic sensory association aread.basal nucleie.parasympathetic system
The correct answer is the limbic system (a).
19. Choose the correct order of organization for the parts of the circulatory
system from highest to lowest degree of internal organization.
A. heart, cardiac cell, circulatory system, cardiac muscle
B. cardiac cell, cardiac muscle, heart, circulatory system
C. circulatory system, heart, cardiac muscle, cardiac cell
D. cardiac muscle, circulatory system, cardiac cell, heart
Submit
*
Clear form
The right atrium is where the blood first enters. The tricuspid valve then allows the blood to enter the right ventricle.
What is meant by circulatory system?A human or other vertebrate's complete body is circulated by a system of organs called the blood circulatory system, which includes the heart, blood arteries, and blood itself. It contains the heart and blood vessels-based cardiovascular system, often known as the vascular system.
The right atrium is where the blood first enters. The tricuspid valve then allows the blood to enter the right ventricle. When the heart beats, the ventricle pushes blood through the pulmonic valve into the pulmonary artery. The pulmonary artery takes blood to the lungs where it “picks up” oxygen.
Therefore, the correct answer is option A. heart, cardiac cell, circulatory system, cardiac muscle.
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8. Which is an abiotic factor of an ecosystem?
a) ferns
b) water
c) birds
d) fish
Fossvo
Answer:
It is Fossvo(fossils?)
Explanation:
if thats a choice
7. A niche is
a) a small population of organisms
b) a place in which organisms live
c) a large collection of ecosystems
d) the role an organism plays in an ecosystem
Answer:
its d!
Explanation:
good luck! :)
A man with cataracts and a lowered metabolic rate is likely in which stage of his life?
Question 9 options:
Late adulthood
Early adulthood
Adolescence
Middle adulthood
Answer:
Late adulthood
cataracts can be associated with aging and also diabetes
Prescription drugs can Impair your ability to drive safely.
a)
True
b)
False
Answer:
it depends, certain prescripted drugs can hinder your ability to drive (like Benadryl) and others can help you when you are driving like if you have ADHD it might help you pay attention to the road if you take your medication (i do not recommend doing this if you are told not to depending on the prescription)
how many cells there would be after a fourth cell cycle?