What is the most basic unit of life?
Answer:
cell
Explanation:
cell is the basic unit of life
atoms in covalent bonds___their electrons
Answer:
gain there electrons that they didn't have before
If pharmaceutical researchers want to learn how to keep cancer cells from dividing uncontrollably, which
approach are they most likely to try?
Interrupt some stage of the cell cycle, such as the formation of the spindle that separates chromatids.
Develop strong dyes that will be able to color the chromosomes for good visualization.
Provide dangerous levels of radiation to irradiate the
cancer cells in a human being.
Starve the cancer cells by starving the patients, thereby reducing chances of cell division.
Answer:
c
Explanation:
Chemotherapy i.e. use of drugs to destroy the cancer cells by inhibiting their growth and division. Therefore, option (A) of interrupting stages in cell cycle is correct.
What do you understand by chemotherapy?
Chemotherapy is a medication that employs strong chemicals to destroy rapidly developing cells in your body. Chemotherapy is most commonly used to treat cancer because cancer cells grow and proliferate significantly faster than the rest of the body's cells. There are several chemotherapy medicines available.
Taxol (Paclitaxel) and other drugs that poison microtubules and impede the mitotic spindle have been used extremely efficiently in chemotherapy. This prevents cancer cells from proliferating and kills them.
Therefore, pharmaceutical researchers uses drugs to learn cancer treatment. Option (A) is correct.
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Which feature of a bacterial cell is attacked by many antibiotics?
cell membrane
cell wall
plasmids
cytoplasm
Answer:
cell wall
Explanation:
The boiling point of a subtance is the point at which the subtance ments.
A) True
B) False
Assuming you meant melts and not ments (if it was the latter, I have no idea what you mean), the answer is False. The melting point is when the substance melts, turning from a solid to a liquid. On the other hand, the boiling point is when the substance turns from a liquid to a gas.
Certain cells, such as erythrocytes, do not contain DNA. Which of these is MOST likely true for these
cells?
o
A. They do not move.
o B. They do not reproduce.
o
C. They do not contain proteins,
o
D. They do not perform homeostasis.
Answer:B
Explanation:
How can we apply population models to real world data?
Answer:
use mathmatical representation to support explanation of factors that efect carrying capacity of ecosystems at different scales as support and revise evidence about factors affecting bio-diversity and populations in ecosystems of different scales
Explanation:
Population models have been used to analyze and study population dynamics. It can be applied to real-world data to understand the carrying capacity of the ecosystem and factors affecting biodiversity.
What is carrying capacity?The carrying capacity of the ecosystem is defined by the number of individuals or the population that can be entertained in a specific geographical area at a particular time.
The carrying capacity, population dynamics, biological invasions, conversation, and biodiversity can be explained by the population model.
The model describes the mechanistic and mathematical representation that allows a better understanding of dynamics and statistics. This is applied in the real world to understand the carrying capacity of the ecosystem.
Therefore, the population model can be used to analyze the carrying capacity.
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individuals do not evolve.Populations evolve. True or False?
Answer: false
Explanation:
Individuals do not evolve as a result of natural selection over successive generations. Populations evolve ONLY as certain traits become more common and others go away.
Answer:
False
Explanation:
Singular living beings don't evolve, they hold similar qualities for an amazing duration. At the point when a populace is advancing, the proportion of various hereditary sorts is evolving. Hope this helps!
Describe Range: (idk)
Answer:
Well if you mean species, it means the range or distribution of a species is the geographical area or habitat where the species live.
Explanation:
It would help if you could be more specific, But i hope it helps!!
Why is water necessary for living things?
Answer:
To survive
Explanation:
Without water, we wouldn't have organisms such as fish. We also need it to break down food molecules or generate energy during the respiration process.
Which of the following are health issues related to algal blooms?
i. rashes
ii. allergic reactions
iii. intestinal problems
A. i only
B. ii and iii only
C. i, ii, and iii
D. i and iii only
Answer:
C. i, ii, and iii
Explain what happens at each of the following boundaries: ocean/ocean
convergent, bcean/continental convergent, continental/continental
convergent, divergent and transform plate boundaries.
Answer:
The particularly severe winter of 1777-1778 proved to be a great trial for the American army, and of the 11,000 soldiers stationed at Valley Forge, hundreds died from disease. However, the suffering troops were held together by loyalty to the Patriot cause and to General Washington, who stayed with his men.
Explanation:
Explanation:oceanic plates are formed at divergent boundaries mainly at mid ocean ridges. The material that is poured out are basaltic lave in nature. Basalt is denser and heavier than the granite that makes up continental plates.
Oceanic plates are much thinner than the continental plates. When an oceanic plate meets a continental plate at a convergent boundary the oceanic plate is forced under the continental plate and destroyed. The convergent boundaries between ocean and continental plates create subduction zones. The oceanic plate is pushed under the continental plate and melted. This melted material becomes magma that may reach the surface as volcanos, or solidify under the surface as granite.
Continental plates are much thicker that Oceanic plates. At the convergent boundaries the continental plates are pushed upward and gain thickness. The rocks and geological layers are much older on continental plates than in the oceanic plates. The Continental plates are much less dense than the Oceanic plates. The Granite and recycled material are much lighter than the heavy basalt layers of the ocean plates.
QUICK CHECK
Choose the correct measuring device for gathering
data from the list of tools in the drop-down menu.
temperature of the water
heartbeats per minute
volume of liquid
time
DONE
distance across the pond
Answer:heart monitor
Stopwatch
Digital tape measure
Thermometer
Graduated cylinder
Explanation:
Measuring devices are used as follows -1. Thermometer, 2. Heart monitor, 3. Measuring cylinder, 4. Clock, 5. Tape measure
What are measuring devices?The instruments that are used for the measurements of various specific items based on the laws and the theories of measurement are called measuring devices.
Specific measurements have specific measurement devices. These measure the value based on the specific unit of the measurement.
For example, an inch tape measures the length of something in inches. It also has scales of centimetres and meters.
For the measurement of length, scales and tape measures are used.
For the measurement of time, clocks are used.
For the measurement of volumes, graduated cylinders are used.
For the measurement of temperature, thermometers are used.
Therefore, the measuring devices vary according to the function it needs to perform. In this case, 1. Thermometer, 2. Heart monitor, 3. Measuring cylinder, 4. Clock, 5. Tape measure.
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Which type of microscope allows you to look at 3D objects? *
compound
stereoscope
magnifying
simple
Answer:
Stereoscope
Explanation:
Stereo Microscopes enable 3D viewing of specimens visible to the naked eye.
yea i know another but please help!!!
What other three things do Volvox also likely lack?
A. Organs
B. Organ systems
C. Cells
D. Muscles
Answer:
B,D,A is the right answer.
Explanation:
The three things Volvox lack is Organs, Organ System, and muscles.
What Volvox likely lacks?
This is the most complex level of organization in life. several Volvox, one of the simplest multicellular living things. Volvox has no tissues.
What makes Volvox unique?In the northern region, the eyespots are more developed. This helps the colony to swim towards the light. This differentiation of cells makes Volvox quite unique. It is a colony that comes really close to being a multi-celled organism.
What is a fact about Volvox?
Volvox is a freshwater alga that is found in ponds, ditches, and even in shallow puddles. Volvox is nothing but a chlorophyte or green algae which exists as a grand spherical colony. Each little algae within the colony hold two flagella, whip-like hair.
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What is one way that matter moves from the atmosphere to the geosphere
Answer:
Energy is transferred through the oceans, the atmosphere, and the geosphere by convection. Energy is transferred between the geosphere and the atmosphere by conduction.
A student wants to test the effect of different amounts of caffeine on the heart rate of dogs. Describe the experimental groups in this experiment. What is the dependent variable? type of dogs amount of caffeine the heart rate number of dogs
Answer:
Experimental groups: type of dogs
Dependent variable: hearth rate
Independent variable: the amount of caffeine
Explanation:
The dependent variable is the variable being measured or tested in a given study, while the independent variable isn't changed by the other variables. In this case, the heart rate is dependent on the amount of caffeine, which is then the independent variable. The experimental groups are the groups exposed to the independent variable.
what dose it mean when we say water molecules break apart
2. If you notice a strange smell in your house, what should you be most alert for?
A gas leak
A mold colony
An electrical short
There's no need for concern
Answer:
A gas leak
Explanation:
The two most common source of a rotten egg smell are a natural gas leak.
What makes it possible for us to be able to live on the earth?
Answer:
oxygen and H20
Explanation:
...AIR AND WATER
Answer: homeostasis
Explanation: homeostasis is the regulation and maintenance of out internal environment, this also includes gas exchange, (oxygen to carbon dioxide) which enables the ability to breathe. If our body would not be able to maintain homeostasis, every system in the human body would not be balanced, resulting in a disabled environment.
Which cards are nucleic acids?
Answer:
Card 33
Explanation:
I hope this helps you :)
What kinds of things might scientist measure in a mine or well???
Answer:
In wells Scientist measure dissolved oxygen, or DO (pronounced dee-oh).
The kind of thing that might scientist measure in a mine or well is the amount of dissolved oxygen. It is also named DO.
What is the responsibility of Scientists?Scientists are widely responsible for conducting and communicating scientific works on the basis of their respect, integrity, fairness, transparency, and trustworthiness. They always considered the consequences of new knowledge and its application.
According to the context of this question, scientists perform their role for the betterment of society, reliability, and efficiency of human beings with full concentration.
The amount of dissolved oxygen delivers the significance of nutrients present in a well or mine. Scientists conduct and gather research perspectives in order to gain knowledge in a particular area.
Therefore, the kind of thing that might scientist measure in a mine or well is the amount of dissolved oxygen.
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What is the main function of endoplasmic reticulum in a cell
Answer: The endoplasmic reticulum (ER) is a large, dynamic structure that serves many roles in the cell including calcium storage, protein synthesis and lipid metabolism
Explanation: Hope this helped !
Hydrophobic substances such as vegetable oil are *
1 point
nonpolar substances that repel water molecules.
nonpolar substances that have an attraction for water molecules.
O polar substances that repel water molecules.
O polar substances that have an affinity for water.
Hydrophobic substances such as vegetable oil are nonpolar substances that repel water molecules.
What are non polar substances?Nonpolar substances are molecules that do not have a charge separation between different parts of the molecule. This means that they do not have a polar, or electrically charged, end, and as a result, they do not dissolve well in polar solvents like water.
Nonpolar substances are hydrophobic, meaning that they repel water molecules, and tend to dissolve in other nonpolar substances, such as oils and fats. Examples of nonpolar substances include hydrocarbons like gasoline, fats, oils, and waxes, as well as some gases, like nitrogen and methane. Nonpolar substances play an important role in a variety of biological and industrial processes, and their unique properties make them useful for many different applications.
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¿Que aspecto debemos considerar para desidir el uso mas adecuado de lagunos materiales en la satisfacción de necesidades humanas sin afectar la salud y el medio ambiente?
Answer:
El efecto del material sobre el medio ambiente es el aspecto a considerar.
Explicación:
Se debe verificar la estructura química del material o de qué elementos se forma un material para conocer el efecto de estos materiales en la salud y el medio ambiente de las personas. Si los materiales no afectan el medio ambiente y la salud humana, el ser humano puede utilizarlos para satisfacer sus necesidades. Si el material se forma a partir de elementos tóxicos o elementos que no se descomponen por microbios, entonces este tipo de materiales son peligrosos tanto para la salud humana como para el medio ambiente porque estos materiales contaminan el medio ambiente y debido a esta contaminación la salud humana se ve gravemente afectada.
Wolves follow their young because their young’s grazing disturbs others habitats making for a easy meal. This is an example of commensalism, mutualism or predation?
Answer:
its commensalism!!!!!
Explanation:
can someone please give me a question about genetics and heredity!
Answer:
Can cancerous cells be passed down by genetics and inherited to family?
Explanation:
hope it helps
Answer:
Genetics : Why don't identical twins look the same ?
How much information is in our DNA ?
Heredity : Can hereditary diseases be cured?
Explanation:
As seen from Earth, what causes the Moon to change its apparent shape throughout the month?
Answer:
The Moon doesn't emit (give off) light itself, the 'moonlight' we see is actually the Sun's light reflected off the lunar surface. So, as the Moon orbits the Earth, the Sun lights up different parts of it, making it seem as if the Moon is changing shape.
Explanation:
JUST ONE PLZ!
Which describes a characteristic of quartzite?
igneous
foliated
does not split into layers
grains arranged in parallel layers
Answer:
Igneous
Explanation: