Please help !!!!!!
I need some to calculate this for me.
Pro Tip 1: To calculate the % of cells at rest (in interphase), divide the number of cells in interphase by the total # of cells in the slide (cells in telophase may look like they are almost 2 cells, but you can still count them as 1).
# of cells in interphase ÷ total cells = % of cells at rest
Pro Tip 2: To calculate the % of cells dividing (or mitotic index), add up the cells in prophase, metaphase, anaphase and telophase. Divide that number by the total # of cells in the slide.
# of cells in PMAT ÷ total cells = % of cells dividing (or mitotic index)
Answers
Answer:
INTERPHASE PROPHASE METAPHASE ANAPHASE TELOPHASE % of Cells at Rest (interphase)
% of Cells Dividing (Mitotic Index)
Normal Lung
13 cells 2 cells 2 cells 2 cells 1 cell 65% 35%
Cancerous Lung 6 cells 5 cells 3 cells 3 cells 3 cells 30% 70%
Normal Stomach 10 cells 3 cells 3 cells 3 cells 1 cell 50% 50%
Cancerous Stomach 5 cells 5 cells 4 cells 4 cells 2 cells 25% 75%
Normal Ovary 9 cells 5 cells 3 cells 1 cell 2 cells 45% 55%
Cancerous Ovary 3 cells 6 cells 5 cells 3 cells 3 cells 15% 85%
Explanation:
The answers are also down below in the chart if that helps you better make sense of them.
There are 20 cells in each column, to find the ones at rest we simply take the first number in the column and devide it by the number of cells (in this case 20) once we find the percent of cells at rest, we subtract from 100 to see the cells deviding!
Hope this helps another student along the way! :)
Good luck with your studies and have a fantastic winter break!
Related Questions
What are the stages of bee development (eggs,larvae,pupae)
Answers
The stages of bee development are egg, larva, pupa, and adult. Eggs hatch into larvae, which then transform into pupae. Finally, adult bees emerge and undergo further maturation.
The stages of bee development are:
1. Egg: The bee life cycle begins when the queen bee lays an egg in a honeycomb cell.
2. Larva: The egg hatches into a larva, which is a legless, grub-like creature. The larva is fed a special diet called royal jelly, which stimulates its growth.
3. Pupa: The larva undergoes metamorphosis and transforms into a pupa. Inside the sealed cell, the pupa undergoes various changes, developing into an adult bee.
4. Adult Bee: After completing the pupal stage, the fully developed adult bee emerges from the cell. The bee then undergoes further maturation, such as its exoskeleton hardening, wings expanding, and adult coloration appearing.
It's important to note that there are three castes of bees: queen, worker, and drone. The development process for each caste is similar, but the diet and size of the cells they are raised in differ, leading to their distinct roles within the colony.
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in which biome are minerals in the soil most rapidly depleted
Answers
Answer:
Boreal forest is among the largest terrestrial biomes on earth in which minerals in the soil most rapidly depleted.
Can you please help me fill in the rest of the missing facts for my assignment?
Answers
Parameciums form of prey is bacteria
Parameciums are colorless
Parameciums cleans up small particles of debris in water
I’m not sure about what they have in common. Hope this helps a bit though
Copper wire is used to transfer electricity
Answers
Answer:
couper wire is used to transmit electricity because it is a good conductor of electricity.
HELP Using your knowledge of nonrenewable energy sources, choose the answer that BEST describes the environmental impact (s) associated with these energy sources.
Non renewable energy sources such as coal, oil and natural gas contribute to air pollution and cost more money.
Non renewable energy sources do not really have any major impacts on the environment.
Solar energy is the best type of energy for the environment.
Non renewable resources such as coal, oil and natural gas contribute to air pollution, water pollution and global warming.
Answers
Answer:
Non renewable resources such as coal, oil and natural gas contribute to air pollution, water pollution and global warming.
Explanation:
Non-renewable energy sources are the energy sources that do not naturally replenish themselves. At some points in the nearest future, their sources would be become depleted.
Non-renewable energy sources such as coal, crude oil and natural gas contribute to the pollution of the environment in varying degrees. They require burning and this process leads to the release of gases such as carbon dioxide, carbon monoxide, oxides of sulfur and nitrogen,methane, water vapor, etc.
The released gases often posses different threats to organisms in the environment at certain level, constituting what is known as environmental pollution. Some of them dissolve in rain water to cause acid rain, some are directly poisonous when inhaled by living organisms, while a host of the pollutants absorb radiation from the sun and cause the warming of the planet, a phenomenon known as global warming.
Crude oil spillage or that of the any of its derivatives cause various environmental problems. They are poisonous to aquatic lives and render water useless for humans.
Which of the following statements best describes the relationship between * 1 point
genes and their outcomes?
Every gene influences a single trait.
Similar genes produce the same outcome in every individual.
O Every gene can be linked to one specific, predictable outcome.
The outcome of a gene is affected by the environment of the cells and the timing of
gene expression.
Answers
The outcome of a gene is affected by the environment of the cells and the timing of gene expression.
What is the role of gene in determining traits?Genes play a role in determining traits and they do not act alone because they are subject to environmental influences and gene regulation.
The expression of a gene can be affected by a variety of factors, including external environmental factors and the internal of the cell. Therefore, genes do not always produce a single, predictable outcome and their effects are often influenced by a variety of factors.
Thus, the statement "The outcome of a gene is affected by the environment of the cells and the timing of gene expression" best describes the relationship between genes and their outcomes.
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A scientist uses a microscope to inspect a thin piece of onion and a paramecium. A paramecium is a type of protist. How are the protist and onion sample similar? A. They are both made of a single cell. B. They are both made of structures other than cells. C. They are both made of many cells. D. They are both made of one or more cells.
Answers
Answer:
l think that the answer is A.. hope this helps
a) Look back at your hypothesis from question 2. Could this hypothesis become a theory if
you repeated your experiment 100 different times and got the same results? Can a theory be
I
created by just one person? (2 points)
Answers
A theory can be created by just one person, but it requires extensive research, experimentation, and peer review to become widely accepted. A theory is a well-established explanation that has been repeatedly confirmed through observation and experimentation, and it must be supported by a large body of evidence. Therefore, a theory cannot be created by just one person without extensive research and experimentation, and without undergoing peer review to ensure its validity.
HELP BIOLOGY 50 POINTS !!!!!!
Biology fill in the blanks
below i attatched the blanks you have to fill
heres the words you have to use
-
lactase
repressor
transcribe
dairy products
e.coli
rna polymerase
operator
transcription
repressor
operator
lactose intolerant
protein
enzymes
bases
--
in the answer just put - the # and the answer for each blank
WILL GIVE BRAINLIEST
Answers
Answer:
1. lactose intolerant
2. lactase
3. dairy products
4. e.coli
5. enzymes
6. protein
7. repressor
8. operator
9. rna polymerase
10. transcribe
11. bases
12. repressor
13. operator
14. transcription
The graph shows how the activity of an enzyme changes at different temperatures. Which
statement best describes what happens to the enzyme when the temperature of the reac-
tion increases to 45 degrees Celsius?
X = optimal temperature
Rate of reaction
20 30 40 50
Temperature / "C
А
The enzyme is used up and the reaction stops.
B
The enzyme begins to decrease the rate of the reaction.
С
The enzyme continues to increase the rate of the reaction.
D
The enzyme changes shape and can no longer speed up the reaction.
Answers
Answer: D
Explanation: The enzyme changes shape and can no longer speed up the reaction
-Just did this so it's right lol
Help pls asap
Predict the impact of a severe drought for the Georgia marshland ecosysten. yoyr response needs to includr how a drought will affect the food web.
Answers
A severe drought in the Georgia marshland ecosystem would have a significant impact. It would lead to reduced water availability, affecting the marsh plants, invertebrates, fish, and bird populations, disrupting the food web and potentially causing population declines and habitat loss.
One of the primary effects of a drought is the reduction in water availability. The marshland ecosystem relies on a delicate balance of saltwater and freshwater, which supports the unique plant and animal species found there.
With reduced water availability, the water levels in marshes would decline, leading to increased salinity and changes in the vegetation composition. Marsh grasses and other wetland plants may struggle to survive, affecting the primary producers in the food web.
The decrease in primary producers would cascade through the food web. Herbivores, such as marsh rabbits or marsh snails, may experience food shortages and face population declines.
This, in turn, would impact predators such as marsh hawks or alligators that rely on these herbivores as their prey.
As the population of higher trophic-level organisms decreases, it can disrupt the entire food web, affecting the stability and biodiversity of the ecosystem.
Furthermore, drought-induced habitat changes may force certain species to migrate or seek alternative resources, potentially leading to increased competition for limited food and space. This competition can further disrupt the balance of the food web.
In summary, a severe drought in the Georgia marshland ecosystem would result in reduced water availability, changes in vegetation, and disruptions in the food web.
The impacts would be felt across trophic levels, affecting primary producers, herbivores, and predators, and potentially leading to population declines and alterations in species interactions.
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What is a example of structural diversity
Answers
Answer:
Structural diversity refers to the variety of physical structures or habitat types within an ecosystem. It can be observed in a variety of natural settings, such as forests, grasslands, or coral reefs.
An example of structural diversity in a forest ecosystem would be the presence of different tree species with varying heights, crown shapes, and ages. This creates a diverse vertical structure, with some trees reaching high into the canopy layer while others grow lower in the understory. The presence of snags (dead trees), downed logs, and fallen branches on the forest floor also contributes to structural diversity, providing habitat for a variety of wildlife species such as insects, fungi, and small mammals. These different structural components support a range of ecological processes, such as nutrient cycling, decomposition, and predator-prey relationships, which contribute to the overall health and resilience of the forest ecosystem.
Hope it helps! : )SECTION B: QUESTION 2 2.1 The diagram below shows part of the human ear. 2.1.1 2.1.2 2.1.3 2.1.4 E A B C Explain the consequence if structure E lost its flexibility. Describe the process of hearing. D 2.Z Identify structures A and B Give the LETTER and the NAME of the parts that: (a) equalises pressure on both sides of the tympanic membrane (b) absorbs excess pressure waves from the inner ear (2) (2) (2) (2) (7) (15)
Answers
If structure E (stapes) lost flexibility, it would impair sound transmission, leading to hearing sensitivity.
Process of hearing: Sound waves enter the ear, vibrate the eardrum (tympanic membrane). Ossicles (A: malleus, B: incus) amplify vibrations to inner ear. Vibration of fluid in cochlea stimulates hair cells, converting to electrical signals for interpretation.
Structure A: Malleus
Structure B: Incus
(a) Structure C (eustachian tube) equalizes pressure on both sides of the tympanic membrane.
(b) Structure D (round window) absorbs excess pressure waves from the inner ear.
If structure E, which is the ossicles (specifically the malleus, incus, and stapes), lost its flexibility, it would have a significant consequence on hearing. The ossicles play a crucial role in the process of sound transmission. They amplify sound vibrations that enter the ear through the outer ear and transfer them to the inner ear. The flexibility of the ossicles allows them to vibrate in response to sound waves, transmitting these vibrations to the fluid-filled cochlea in the inner ear.If structure E lost its flexibility, the transmission of sound vibrations would be impaired. This would result in a reduced ability to perceive and interpret sound. Hearing sensitivity would be significantly compromised, and sounds may appear muffled or distorted. It may become challenging to distinguish different pitches or understand speech clearly.The process of hearing involves several steps. When sound waves enter the outer ear, they travel through the ear canal and reach the eardrum (tympanic membrane). The vibrations of the eardrum are then transferred to the ossicles (structures A and B in the diagram), which amplify and transmit the vibrations to the cochlea (structure C). The cochlea is responsible for converting the mechanical vibrations into electrical signals that can be interpreted by the brain. These signals are then sent to the brain via the auditory nerve, where they are processed and perceived as sound.Structure A, known as the Eustachian tube, equalizes pressure on both sides of the tympanic membrane. It connects the middle ear to the back of the throat, allowing air to flow in and out, maintaining equal pressure on both sides of the eardrum.Structure B, called the round window, acts as a pressure relief valve. It absorbs excess pressure waves from the inner ear, preventing damage to delicate structures by allowing fluid in the cochlea to move in response to the sound vibrations.Overall, the ear is a complex and intricate system that relies on the interaction of various structures to enable the sense of hearing.For more such questions on Hearing sensitivity:
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Hearing involves a process of sound wave transduction through the tympanic membrane and ossicles. If the tympanic membrane (E) loses its flexibility, sound quality may diminish. The Eustachian tube and cochlea serve to manage pressure within the ear.
Explanation:The process of hearing (audition) involves the transduction of sound waves into a neural signal. When the tympanic membrane (structure E in your diagram), or eardrum, is struck by sound waves, it vibrates. These vibrations are then transferred to the ossicles, which are three small bones in the middle ear. The ossicles are identified as structures A (Malleus or Hammer) and B (Incus or Anvil) in your diagram. Sound waves are finally transduced into a neural signal in the inner ear.
If the tympanic membrane was to lose its flexibility, it would not vibrate as effectively when struck by sound waves. This could diminish the quality of sound and potentially lead to hearing loss.
The Eustachian tube equilibrates air pressure on both sides of the tympanic membrane. This would be your answer to part (a) of the lettered question. Part (b) refers to the role of the cochlea in the inner ear, which helps to absorb excess pressure waves from the inner ear.
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What does the allele notation tt mean to geneticists?
a. two dominant alleles
b. two recessive alleles
c. at least one dominant allele
d. one dominant allele and one recessive allele
Answers
Answer:
B)
The allele notation tt means two recessive alleles to geneticists. The lowercase letter t represents a recessive allele, while the uppercase letter T represents a dominant allele. Therefore, tt indicates that an individual has two copies of the recessive allele for a particular gene. This means that the individual will express the corresponding recessive trait since there are no dominant alleles present to mask its expression.
Fatty acyl uptake into the muscle is the primary reason fat oxidation can't meet
energy demand during high intensity exercise.
True or false?
Answers
The conformational change in an enzyme after the substrate is bound that allows the chemical reaction to proceed, can be explained by
A.induced fit
B. transition
C. fit and fine
D. Pasteur
Answers
I need help with number one I want to double check that it is correct
Answers
DNA contain the sequence of nucleic acids that determine the structure of proteins. They represent the "blueprints" to sintetize a determined type of proteins. The sequence of bases that "translate" into the RNA that will lead to the sinthesis of the proteins is called a "gene"
So the structure that provides the code needed for the cell to make the proteins is the sequence found in the gene. The correct option is option C.
Which eukaryotic cell organelle contains genetic information and controls most cell
activities?
O cell membrane
O vacuole
O nucleus
chloroplast
Answers
Answer:
nucleus
Explanation:
because it contains its genetics and its like its brain
In a diploid species of plant, the genes for plant height and fruit shape are syntenic and separated by 18 m.u. Allele D produces tall plants and is dominant to d for short plants, and allele R produces round fruit and is dominant to r for oval fruit. The expected percentages of progeny phenotypes are listed below:
tall oval = 41%
short round = 41%
tall round = 9%
short oval = 9%
(a) What proportion are expected to be tall and produce round fruit?
Answers
In a diploid plant species, the proportion of progeny expected to be tall and produce round fruit is 32%.
In a diploid species of plant, the genes for plant height and fruit shape are syntenic and separated by 18 m.u. The expected percentages of progeny phenotypes are tall oval = 41%, short round = 41%, tall round = 9%, and short oval = 9%.To determine the proportion of progeny expected to be tall and produce round fruit, we need to consider the alleles for each trait. Allele D produces tall plants (dominant) and allele d produces short plants (recessive). Allele R produces round fruit (dominant) and allele r produces oval fruit (recessive).From the given percentages, we can deduce that tall ovals and short ovals combined make up 9%. Since tall oval is 41% and short oval is 9%, the proportion of progeny expected to be tall and produce round fruit is 41% - 9% = 32%.Therefore, the proportion of progeny expected to be tall and produce round fruit is 32%.For more questions on diploid plant
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Describe the reproductive system in humans.
Answers
Answer:
The human reproductive system includes the male reproductive system which functions to produce and deposit sperm; and the female reproductive system which functions to produce egg cells, and to protect and nourish the fetus until birth. Humans have a high level of sexual differentiation.#carryonlearning
Deforestation, the chopping down of large numbers trees for human use, is considered to have a negative impact on climate change. Why do you think this is the case?
Answers
Answer:
it is because plant releases oxygen into the air for other living thing to breath
The response to selection can be calculated as ______________________________. a. additive genetic variance times the selection differential b. additive genetic variance times phenotypic variance c. additive genetic variance divided by phenotypic variance d. heritability times the selection differential e. heritability times the selection gradient
Answers
I'm not sure but but i think the answer will be:
A. additive genetic variance times the selection differential.
Answer:
A. additive genetic variance times the selection differential
Explanation:
The response to selection can be calculated as additive genetic variance times the selection differential
- Sumin -
Explain how water makes its way to the leaves in the tops of the tallest trees against the force of gravity. Name what the climbing of water is called and the two other properties that are responsible for making this possible.
Answers
Answer: Capillary action occurs because water is sticky, thanks to the forces of cohesion (water molecules like to stay close together) and adhesion (water molecules are attracted and stick to other substances).
It reminds me of naruto
Alika finds a certain kind of butterfly near her house. She reads that ultraviolet light is absorbed by the butterfly’s wings, red light is transmitted through the butterfly’s wings, and green light is reflected off the butterfly’s wings. Alika’s friend Claire tells her that if you shine light on the butterfly, its wings will glow. Can light cause the butterfly’s wings to glow? Why or why not? Does it matter what type of light Alika shines on the butterfly?
Answers
The butterflies are capable to absorb Ultra violet rays and they can be viewed more precisely using dedicated microscopes.
What are Butterflies?Butterfly wings are unique in the insect kingdom because they have scales made of chitin, a protein also found in the exoskeletons of other insects.
The scales overlap like shingles on a roof, and can be brightly colored or patterned.
The colors and patterns on butterfly wings are used for camouflage, communication, and protection from predators.
The scales on butterfly wings also help the insect to stay cool, as the colors and patterns can act as a kind of sunblock.
As a result, butterflies are able to absorb ultraviolet light through the action of pterin pigments and reflect ultraviolet light as a result of the structure and makeup of their wing scales, resulting in thin layer constructive interference.
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What is the difference between meiosis I and meiosis II?
Select one:
a. Meiosis II results in four haploid cells instead of two diploid cells.
b. Meiosis I has a prophase stage, but meiosis II does not.
c. Nuclear membranes form during meiosis II but not meiosis I.
d. Cytokinesis occurs during meiosis II but not meiosis I.
Answers
Answer:
In meoisis I, homologous chromosomes separate while meiosis II, sister chromatids separate
The correct scientific names a short description and the domain and kingdom of each one
Answers
Here we have a series of different organisms belonging to different taxa, even more, some of them are extinct.
Trimerocephalus mastophthalmus
Domain: Eukarya
Kingdom: Animal
Family: Phacopida
Status: extinct
Diagnosis: Is a genus of trilobites lacking eyes, present during Devonian, they are aquatic arthropods which mean are invertebrates, with a segmented body, bilateral symmetry, and exoskeleton.
Bacillus mycoides
Domain: Bacteria
Kingdom: Does not apply, higher taxonomic level after domain, Phylum: Bacillota
Family: Bacillaceae
Status: Living
Diagnosis: Is a positive gram bacteria which means it has a very thick layer of proteoglycans in its cellular wall, rod-shaped, and it can form spores when conditions are adverse, in culture (agar) form large hairy colonies making it easy to distinguish from other bacillus species.
Raphus cucullatus
Domain: Eukarya
Kingdom: Animal
Family: Columbidae
Status: Extinct
Diagnosis: Also known as Dodo, was a non-flying bird endemic to Mauricio island close to Madagascar. Closely related to pigeons and doves, according to descriptions it was a bird of 1m in height, with grayish feathers and a weight close to 10Kg. Extinct at the end of the XVII century due to human hunt.
Ornithorhynchus anatinus
Domain: Eukarya
Kingdom: Animal
Family: Ornithorhynchidae
Status: Living
Diagnosis: It is one of the few monotremes species that are still alive, as they still retain very primitive characteristics, the reproduction is still by egg, however as any mammal, they possess mammary glands, originally from Australia the Platypus is semiaquatic and due to its unique appearance the first exhibition specimen that was presented in the royal society was believed it was a scam with a beaver, duck and an otter ensembled together.
Archaeopteryx lithographica
Domain: Eukarya
Kingdom: Animal
Family: Archaeopterygidae
Status: Extinct
Diagnosis: It was a primitive bird with intermediate traits between feathered dinosaurs and modern birds, lived during the superior Jurassic period in what today is the south of Germany. It had an aspect similar to a European magpie but slightly larger, with a great capacity to fly and glide, however, even with an aspect more similar to modern birds, it had more in common with small dinosaurs of the Mesozoic, with great sharp teeth, three fingers with claws, large bony tail as well as other characteristics of the skeleton.
_____ energy is tapped from the heat of Earth.
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices
Volcanic
Geothermal
Convection
Terra therma
Answers
Answer:
-- Geothermal energy is tapped from the heat of the Earth.
Wildlife is losing the fight against the loss of ___ which is needed for survival.
a. prey
b. government programs
c. habitat
d. forest
Answers
Select the correct answer from each drop-down menu.
In an experiment, Dr. Travis examined the effects of calcium intake on osteoporosis, a condition that causes an increased risk of bone fractures. The amount of calcium is variable. The risk of bone fractures .
Answers
Answer:
the amount of calcium is variable.
Explanation:
osteoporosis is an illness that is caused by lack of calcium in a person's body.
The human body has many types of cells. For example, muscle tissue and skin have different kinds of cells.
Muscle cells expend a lot of energy during exertion such as lifting something heavy or running. Skin cells and a muscle cells
help to protect your body from the outside world. Which statements below explain how a skin cell and a
muscle cell from the same individual are different?
OA. Only one of the cells performs respiration.
B. The cells have different genetic material.
OC. The cells express different genes.
D. Only one of the cells contains a nucleus.
OE. One cell contains more mitochondria than the other.
OF. Each cell started out as an undifferentiated cell.
Answers
E. One cell contains more mitochondria than the other.