The fragility of cancer cells when they undergo division serves as a critical intervention point in chemotherapy. ... Despite being the shortest phase of the cell-cycle, mitosis ... Therefore, there is a strong interest in developing novel drugs that do not affect .... cells. Plk1 is the most thoroughly studied member.
If you intend to study Taxol, you'd be most interested in cells during metaphase/anaphase. This is because Taxol deleteriously affects the ability of cancer cells to properly assemble a mitotic spindle, pass the metaphase/anaphase checkpoint, and produce progeny.
True or false the greater the mass the greater the gravitational pull
The question that you have asked is false
Which statement about stable air is true?
It is associated with severe storms.
It is never associated with precipitation.
It tends to resist rising.
It tends to rise.
It tends to resist rising.
Answer:
It tends to resist rising.
Explanation:
A population of frogs inhabits a lake. If the resource availability of the lake changes, the population may to use the resources that are available. As a result, the population would exhibit .
Resources in a lake can change due to climate changes. Changes in climate may affect the survival, growth and reproduction capabilities of frogs and other amphibians. Climate changes greatly influence food availability, predator-prey relationships and competitive interactions which can alter community structure.
Changes in lakes can include other factors such as UV-B radiation and contaminants.These factors are complex and are causing some amphibian population to decline or even extinct.
Hence, as a result the frog population could exhibit a decline in population.
Answer:
Adapt Evolution
Explanation:
hope you get it right
Autotrophic organisms require other organisms to produce their own food.
True ot false.
False, because An autotroph ("self-feeding", from the Greek autos "self" and trophe "nourishing") or producer, is an organism that produces complex organic compounds (such as carbohydrates, fats, and proteins) from simple substances present in its surroundings, generally using energy from light (photosynthesis) or inorganic chemical reactions (chemosynthesis).
Autotrophic organisms require other organisms to produce their own food. This statement is false because autotrophs are those organism which prepare thier own food by th help of photosynthesis that is in the presence of light ,water ,carbon dioxide and other chemical components etc . Autotrophs are also called producers because they compose their own food.
a section of dna that contains heredity information
when the elodea is underwater where is the carbon dioxide coming from
Organisms are made up of one or more _____. cells clones energies cycles
The correct answer is cells.
Some organisms are single-celled, and are only made up of once cell.
But most complex organisms are made up of billions and billions of cells.
All living creatures are composed of at least one cell.
What structural feature does glucose share with larger carbohydrates? A. a ratio of 1 carbon atom to 2 hydrogen atoms to 1 oxygen atom B. the presence of double covalent bonds between carbon atoms C. strong bonds between carbon atoms that cannot be broken D. ionic bonds between carbon atoms and oxygen atoms
The correct answer is option A, that is, a ratio of 1 carbon atom to 2 hydrogen atoms to 1 oxygen atom.
Carbohydrates are the main source of diet, they provide energy to the body, mainly via glucose, a basic sugar, which is a part of the starch and an ingredient in various staple foods.
The carbohydrates can be signified by the stoichiometric formula, that is, (CH2O)n. It can be also be stated that the ratio of the carbon to hydrogen to oxygen is 1: 2: 1 in the molecules of carbohydrates. Carbohydrates are further categorized into three sub-kinds, that is, monosaccharides, disaccharides, and polysaccharides. The monosaccharides are the simple sugars, for example, glucose.
Ann, bob, and charlie are testing to see if putting sugar in water helps flowers last longer. They buy six roses and place three in containers with plain water and three in containers with sugar water. They record the time before the first petal falls off. The ones in the sugar water lasted slightly longer than those in plain water. Before including that adding sugar to the water does not have a significant affect on how long flowers will last, what should they do?
A) use warm water in each container
B) run more trials for the experiment
C) try salt in the water instead of sugar
D) try different amounts of water in the containers
Run more trials for the experiment to ensure that the small difference is not significant. B
To determine if adding sugar to water has a significant effect on how long flowers last, Ann, Bob, and Charlie should run more trials of their experiment, keeping the conditions consistent to ensure the results are reliable and significant. Hence, the correct option is B.
Running more trials will help ensure that their observations are consistent and statistically significant. Repeating the experiment with an increased number of flowers and trials will provide a larger set of data, reducing the probability that the initial result was due to chance. They should keep the amount of water and sugar consistent across all trials to maintain experimental control. By analyzing their data, they would compare the average lifespan of the flowers in both conditions over multiple trials to determine if sugar truly has an effect on flower longevity.
Which is similar between autotrophs and heterotrophs? * A Both need to obtain energy. B Both need to produce glucose. C Both use the same method of absorbing water. D Both occupy the same position in a food chain.
The answer is A, all organisms need energy to live. autotrophs (ex plants) produce glucose and absorb water differently hetertrophs (ex animals and humans) andautotrophs are typically first in the food chain hetertrophs are not
Answer: Both need to obtain energy
Explanation:
The primary importance of the organism on earth is to obtain energy from the food for the its survival.
Both the autotrophs and heterotrophs obtain energy by different means. Plants perform photosynthesis in order to obtain energy.
Animals obtain energy from the food that is being produced by the producers. The autotrophs make food which is used by the plants itself and animals to get energy from it,
Hence, option A is the correct option.
This assignment is a creative writing assignment on the different organelles found in either the plant cell OR the animal cell. You are going to imagine you are the nucleus of a plant or animal cell and have been asked to mentor an organelle that is new to the cell. You will take your mentee on a tour of the cell, describing the major parts of the cell and their functions. You may present your tour in a variety of ways; just be sure it demonstrates a complete understanding of the organelles, their functions, and how they work together to support the cell. You may present your tour in one of the following ways: A written dialogue, from your perspective as the nucleus, explaining the parts of the cell to your mentee. A presentation including images and written descriptions of each organelle. A drawing of a cell accompanied by written descriptions. Another creative way, approved by your instructor before you begin. Your tour should include: A description of the type of cell (plant or animal) being toured and the type of organelle (your mentee/audience) being taken on the tour. Descriptions, drawn or written, of the structure and location of each organelle in the cell. Written descriptions, in your own words, of each organelle’s function and interaction with the rest of the cell.
Major parts of the animal cell:
Nucleus- controls the cell's activities and contains all the genetic material
Nucleolus- is involved in the synthesis of ribosomal RNA. It is a dark body inside the nucleus
Nuclear membrane- keeps DNA inside the nucleus but allows mRNA and proteins through. It is a double membrane with large pores
Golgi Complex- store and package cellular secretions for export out of the cell (usually through the use of vacuoles). Salivary, oil, and digestive glands have very active golgi bodies.
Rough Endoplasmic Reticulum-is a series of long canals running throughout the cell with ribosomes attached. It transports proteins to the golgi bodies for packaging.
Smooth Endoplasmic Reticulum- is a series of long canals running throughout the cell. It detoxifies the cell and converts foodstuffs.
Centrioles- anchor spindle fibers during cell division. They are composed of microtubules and are only found in animal cells.
Mitochondria- produce most of the cell's energy. They are composed of two membranes (an outer and a folded inner membrane) and are common in muscle cells
Ribosomes and Free Ribosomes- assemble proteins from RNA codes. They are found free-floating in the cytoplasm throughout the cell or attached to the endoplasmic reticulum
Lysosomes-digest and remove worn out cell organelles. In essence, they are vacuoles filled with digestive enzymes.
As the nucleus of an animal cell, I am thrilled to mentor a new organelle joining our cell community. Our cell type is specialized for various functions within the animal body.
Let's embark on a fascinating tour of our animal cell and explore the major parts and their functions!
Nucleus: I am the control center of the cell. My primary job is to store genetic information in the form of DNA and govern all cellular activities. I also coordinate the replication and transcription of DNA to maintain the cell's functions.
Cell Membrane: Look around, and you'll see the cell membrane surrounding us. It's like a security gate, controlling what goes in and out of the cell. It's crucial for maintaining cell integrity and communication with the outside environment.
Cytoplasm: This gel-like substance fills the cell, supporting various organelles and providing a medium for chemical reactions to occur. It's where many metabolic processes take place.
Mitochondria: Over there, those bean-shaped structures are the mitochondria. They are the powerhouses of the cell, responsible for producing ATP, the cell's energy currency, through cellular respiration.
Endoplasmic Reticulum: A network of membranes makes up the ER. There are two varieties: rough and smooth. The smooth ER aids in lipid metabolism and detoxification, whereas the rough ER contributes to protein synthesis.
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Name three things atmosphere dose for us
1.) it provides oxygen for humans and carbon dioxide for plants
2.) it keeps the earth warmer than it would be without the atmosphere
3.) it protects us from radiation and meteoriods
if this is helpful please click on the thanks button dear friend!
Have a great day!
Answer:
protects us from radiation, keeps earths gasses on earth, keeps the earth pressurized
Explanation:
you misspelled does, "dose" is the amount of something taken in like medicine .
What feature on a cell contains the DNA sequence to make a specific sequence
Your answer gene
Hope it helps
is forming a hypothesis the first step of the scientific method
No it is not. The first step is asking a question. here is a chart that i hope will help you
How did astronomers use technology to identify characteristics of the Crab nebula?
A star remarkably ruptured about 7,500 years ago established about 6,500 light years away. The explosion states that the star was brighter than million suns and it was visible during day light which amazed the Chinese astronomers. There were amazed at the appearance of the bright star. Many years later, the arrival of the telescope, astronomers launch a nebula which is a cloud like structure and that it is a remnant of a shattered star. The astronomers detected the promptly rotating neutron star - a pulsar surrounded by a gas envelope. Now Indian astronomers, combine powerful Cadmium-Zinc-Telluride imager on the on panel the indian astronomy satellite, AtroSat, have achieved the most absolute X-ray polarization measurement of the Crab nebula.
Answer:
radio waves
Explanation:
In the summer of 1967, U.S. Air Force officer Charles Schisler was on radar duty at Clear Air Force Base in Alaska when he noticed a fluctuating radio source. The source appeared over the course of several days, and Schisler noticed that its position coincided with the Crab Nebula. However, the findings weren't published by the Air Force at the time, and the discovery went unrealized until 2007. Astronomers in Puerto Rico discovered the same pulsing radio source. Determined to be a pulsar, the object is a rapidly-rotating, town-sized star that flashes about 30 times a second. Known as NP0532, or the Crab Pulsar,
Which type of protist is most like a fungus
They also have cell walls and reproduce by forming spores, just like fungi. Fungus-like protists usually do not move, but a few develop movement at some point in their lives. Two major types of fungus-like protists are slime molds and water molds.
Answer:
Slime molds and water molds
Explanation:
Slime molds and water molds are fungus-like protists. Like a fungus, they have a cell wall around their cells. Both slime mold and water mold are heterotrophic and can not make their own food. They also derive their nutrition from dead and decaying organic matter.
Like a fungus, these two protists also reproduced by the formation of spores.
Why is the synapse important
synapse are the communication between nerve cells , it helps one neuron to talk to the next neuron creating a continuous impulse
rocks formed from the cooling lava of volcanic eruptions are
igneous rocks that form from magma below the surface.
Question:How does soil form on an island that is made of cooled rock from a volcanic eruption?
Soil forms when parts of the lava cool into very small rocks and dust.
Soil forms from the constant movement of species in and out of the community.
Soil forms when lichens and mosses grow, break down rocks, and die.
Soil forms when large trees take over the community from small bushes.
Answer: the answer is C: Soil forms when lichens and mosses grow, break down rocks, and die.
Which of the following is not an important characteristic of a scientific investigation?
A) detailed documentation of results.
B) ignoring unfavorable results.
C) the ability to be repeated.
D) solid supporting evidence.
The characteristic 'ignoring unfavorable results' is not an important aspect of a scientific investigation; rather, all results must be considered to ensure accuracy and objectivity.
The correct answer to the question Which of the following is not an important characteristic of a scientific investigation? is B) ignoring unfavorable results. In a scientific investigation, it is crucial to consider all results, favorable or unfavorable, to maintain an unbiased view and to ensure accurate conclusions. On the other hand, detailed documentation (A), the ability to be repeated (C), and solid supporting evidence (D) are all essential characteristics of a scientific investigation.
Ignoring unfavorable results could lead to a skewed understanding of the study's findings and potentially hinder the scientific progress. Scientific integrity and reproducibility are paramount in scientific investigations which involve careful documentation, repetition, and significant evidence to support findings.
Which has the greater momentum, a car traveling at 8 m/s or an identical car traveling at 5 m/s?
The car traveling 8 m/s. Good luck.
What should you do to prevent a microscope from falling?
Practices to protect microscope from falling:
Don't place it on edge of of shelves.Don't lean on it with force.Don't move it too much while focusing.Don't set its parts force fully.What does it mean if s molecule is moved against the concentration gradient
Sample Response:
The molecule is being moved from an area of lower concentration to an area of higher concentration.
Two years of dry weather are followed by two wet years, causing the grass population to rise. How will the increase in grass affect the animal populations?
Final answer:
An increase in grass population after wet years positively affects herbivores by providing more food, which may increase net primary productivity and benefit the entire ecosystem. The exact impact on animal populations will depend on various environmental factors, including potential disturbances.
Explanation:
When the grass population increases after two wet years, this abundance of food is likely to positively affect animal populations, specifically herbivores. Herbivores that had previously inhabited the area or similar species may return to take advantage of the increased food supply. This, in turn, can increase the net primary productivity, as a thriving grass population supports a chain of consumers, eventually affecting the entire ecosystem. Predators may also benefit indirectly from the increase in herbivore populations. As the herbivores feed on the grass, they convert the energy from the plants into biomass that fuels the growth of carnivorous species.
However, the exact impact on animal populations can vary and may depend on other factors such as availability of water sources, presence of predators, and the potential for overgrazing. If the conditions remain favorable, the grasslands can support a diverse and flourishing community of organisms, contributing to greater biodiversity. On the other hand, disturbances like fires may lead to a decrease in habitat complexity and a corresponding decline in mammal diversity, as described by Bond and Archibald (2003).
a freshwater paracemin is placed in salt water. which of the following events is most likely to occue
C The salt Would dry out the cell
Which type of melanin is produced by the version of the MC1R gene most prevalent among people of African ancestry?
The MC1R gene gives directions for producing a protein known as the melanocortin 1 receptor. This receptor performs an essential function in normal pigmentation. The receptor is mainly situated on the melanocytes surface that are unique cells, which generate a pigment known as melanin.
Melanin is generated by the melanocytes located in the basal layer of the epidermis. The MC1R monitors the production of both pheomelanin and eumelanin.
The MC1R gene most prevalent among people of African ancestry produces eumelanin, a type of melanin. This melanin is responsible for their darker skin pigmentation, especially with UV exposure which stimulates melanocyte's production of more melanin.
Explanation:The type of melanin produced by the version of the MC1R gene most prevalent among people of African ancestry is eumelanin. Melanin occurs in two forms: eumelanin which is black or brown and pheomelanin which provides a red color. People of African ancestry produce more melanin, specifically eumelanin, which provides a darker pigmentation. The MC1R gene plays an essential role in the synthesis of melanosomes, causing skin pigmentation.
For instance, when skin is exposed to the Ultraviolet (UV) rays from the sun, the UV rays stimulate keratinocytes to secrete chemicals which in turn stimulate melanocytes. The melanocytes increase the production of melanin which results in the darkening of the skin, also known as sun tan.
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How many different types of molecules are shown in model 1?
In Model 1, there are two distinct types of molecules represented: the 'H' signifies a single Hydrogen atom and 'H₂' signifies a Hydrogen molecule composed of two hydrogen atoms.
Explanation:Based on the information given in Model 1 two types of molecules are shown represented by H and H₂. The term 'H' stands for a single Hydrogen atom, while 'H₂' represents a molecule of Hydrogen, consisting of two Hydrogen atoms bonded together. Therefore, although there are different quantities of each (i.e., one H atom, two H atoms one H₂ molecule, two H₂ molecules) they only represent two distinct types of molecules.
A molecular formula uses chemical symbols and subscripts to indicate the exact numbers of different atoms in a molecule or compound. In this instance H and H₂ are the molecular formulas. Additionally, Avogadro's number 6.022 x 10²³, is the number of entities present in 1 mole of a substance, which is crucial when dealing with very large numbers of atoms or molecules.
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PLEASE HELP! Imagine you are a doctor in a maternity ward. During your last shift, 20 babies were born. 10 had blue eyes, 10 had brown eyes. 15 had round heads, and 5 had pointed heads. Given the phenotypes, what are the possible genotypes for these babies?
could someone help me asap? (photo)
The five most prominent pools where carbon is stored include the Earth's crust, oceans, soil, atmosphere, and the _____________
I believe it is in rocks
Sediment
Reason -
Sediments deposits consists of carbon reserves in the form of preserved fossils beneath the earth crust. The most important type of reserves of fossils are Coal, oil, and natural gas. These on burning produce carbon dioxide or carbon mono-oxide. The carbon deposits in fossils are due to the carbon entrapped in dead organic matter that deposited beneath the earth and under the impact of pressure and heat got converted into fossils.
How does global climate change most directly impact marine life?
Decreased ability of marine reptiles to lay eggs
Decreased habitat for polar marine animals
Increased marine mammal oxygen consumption
Increased reproduction of marine migratory birds
Answer: Decreased habitat for polar marine animals
Explanation:
Global climate change is a worldwide concern this is occurring due to global warming. The global warming is directly relating to the melting of the ice of the glaciers in the polar regions. This can be directly related to the loss of habitat, change in temperature, and severe change in the weather conditions. Marine mammals such as seals, polar bears, walruses may suffer for habitat loss in future due to the global climate change.
Global climate change impacts marine life by causing a decreased habitat for polar marine animals, as a result of warming oceans and the melting of polar ice caps. It also leads to ocean acidification and deoxygenation, affecting species' health and survival.
Global climate change most directly impacts marine life by leading to a decreased habitat for polar marine animals. The warming of the oceans and the melting of polar ice caps reduce sea ice coverage, which is crucial for the survival of species like polar bears, who rely on them to hunt seals. The loss of ice also affects numerous other species adapted to arctic conditions. Additionally, a rise in sea levels due to glacial melt and the expansion of warmer water can inundate coastal habitats, leading to a reduction in habitat size and potentially causing some islands to disappear entirely. This habitat loss has significant effects on marine life and can contribute to declines in population numbers for certain species.
Furthermore, climate changes impact marine ecosystems through ocean acidification and deoxygenation, which threaten the health and reproduction of marine species. Marine organisms have evolved in a relatively stable environment, which means they are particularly vulnerable to these rapid environmental changes. The shifting climate can cause species to adjust their ranges, reduce biodiversity, and disrupt critical interactions within the marine ecosystem.