Answer: Scenario 1: SEM
Scenario 2: Light
Scenario 3: TEM
Explanation:
The technique applied to observe and analyze objects that cannot be seen with the bared eye is called the microscopic technique.
1. The technique used will be SEM. A scanning electron microscope (SEM) is used to generate an image on the individual surface with the help of electron lasers.
It is useful in apprehending cell surface fabrication and topography.Therefore, to study the cell surface structure of leukaemia SEM is best.2. The light microscopy technique can be applied to study chemotaxis.
When there will be a movement in the living cell due to response towards chemical then the light microscope can be used to visualise the cells.Therefore to study chemotaxis light microscopy should be employed.3. The transmission electron microscope (TEM) method can be used to know the gap between the inner and outer layers. They are used for observing very thin segments of specimens.
Through the thin fragments, the electron flows easily and the image is produced.Therefore, TEM should be used by scientists to measure the distances.To learn more about the microscopy techniques follow the link:
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After
, following meiosis 1, each cell has half the original number of chromosomes.
Answer:
I'm assuming it's a true false question so true
Answer:
B
Explanation:
Good Luck
Which one of these is NOT a fingerprint ? A. Swirl B. Double Loop C. Radical Loop
Answer:
Radical loop
Explanation:
What was Edwin Hubble's contribution to the field of astronomy?
A. He discovered variable stars.
B. He proved that the heliocentric model accurately described our solar system.
C. He found a relationship between the period luminosity and distance of stars.
D. He proved that the universe is finite.
E. He discovered that the universe was expanding.
Answer:
B he proved that the heliocéntrico model accurately described tour solar system
Explanation:
des
i think
What is one thing viruses all have in common?
A) Nucleus
B) Genetic Material
C) Cell Wall
D) Carbohydrate
Answer:
B) Genetic Material
Explanation:
Just did this lesson on Eg 2020
Hope this helps! Happy Holidays!
Which is the best description of the cause of sound waves?
a.a decrease in pressure
b.one object bumping into another
c.molecules becoming electrically charged
d. a vibration in material causing a vibration in an adjacent area
Answer:
the answer is d
Explanation:
When we hear something, we are sensing the vibrations in the air. The number of vibrations per second is known as the frequency, measured in Hertz (1 Hz = 1 vibration per second).
Pleaseeeeeeeee helppppppp
All living things need _____________. Organisms ___________ their energy in ________ ways.
Answer:
All living things need air, water, and food. Organisms use energy to survive, grow, respond to stimuli, reproduce, and for every type of biological process
Explanation:
to which class of macromelules do anitbodies belong to
Pls answer now I am giving 40 points
Answer
:proteins
The four classes of macromolecules are carbohydrates, proteins, nucleic acids, and lipids. These biomolecules can also be referred to as polymers. In turn, we will discuss how these four classes of macromolecules are synthesized in the cell from their constituent building blocks or monomers.
Explanation:
Antibody Classes. Antibodies can be divided into five classes—IgM, IgG, IgA, IgD, IgE—based on their physiochemical, structural, and immunological properties. IgGs, which make up about 80 percent of all antibodies, have heavy chains that consist of one variable domain and three identical constant domains.
Answer:
Antibodies are proteins. An antibody (Ab), also known as an immunoglobulin (Ig), is a large Y-shape protein produced by plasma cells that is used by the immune system to identify and neutralize foreign objects such as bacteria and viruses
Explanation:
What is pressure in science ??
Answer:
Pressure is the force per unit area. This means that the pressure a solid object exerts on another solid surface is its weight in newtons divided by its area in square metres.Explanation:
Answer:
Pressure, in the physical sciences, is force on an item
Explanation:
;-;
Why did the removal of wolves affect the entire Yellowstone ecosystem?
A. It changed the balance of many different interactions.
O B. The organisms in the ecosystem did not compete for resources.
C. Wolves were the only predators in the ecosystem.
D. The wolves were the only producers in the ecosystem.
HELP ME QUICKKK PLEASE
Answer:
A
Explanation:
Since Wolves were one of the main predators (not the ONLY one) prey started to over populate causing the vegetation population to decrease. Since the vegetation decreases so does the number of prey then as well as the number of predators.
The removal of wolves affecting the entire Yellowstone ecosystem is option "A" that is It changed the balance of many different interactions.
Here wolves act as a keystone species.
What are keystone species?A keystone species is an organism that enables represent an entire ecosystem.
Without its keystone species, the ecosystem would be dramatically distinct or stop existing altogether.
Keystone species have low functional tedium.
Thus, option "A" that is It changed the balance of many different interactions.
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Is it always the employees responsibility to make sure they wear their respiratory
Answer:
Yes.
Explanation:
They’re putting others at risk if they don’t use their masks.
What type of organic compound does algae produce to make energy for fuel?
Answer:
Biogas
Explanation:
Biogas is a composed mainly of Methane (CH4) and Carbon Dioxide ( CO2) with traces of sulphide, oxygen,nitrogen,and hydrogen.
Macroalogae has high mathane production rate compared to plant biomass.
Hope that makes sense
Question: Why do you deserve this scholarship? ...
Question: What are your career goals? ...
Question: Tell me about a mistake you made. ...
Question: Why did you choose this school? ...
Question: What activities are you involved in? ...
Question: Tell me about a personal achievement that makes you proud
Answer:
I deserve this scholarship because I work hard. I feel me getting this scholarship is my dedication paying off. My career goals are to be an orthopedic surgeon, so I can give back to my community, and help others. This has been my dream for a while. I chose this school because I feel it will help me better myself along the Journey of learning. I am involved in football, I was in the National Junior Honor Society in middle school, and I did some basketball. A personal achievement that makes me proud are all of the certificates on my walls of good grades and character badges.
A scholarship is a form of financial support for students for further education. Scholarships are awarded based on various criteria such as academic merit, diversity and inclusion, athletic ability, and financial need.
• The award criteria typically reflect the values and goals of the founder or sponsor of the award.
• While grant recipients are not required to repay grants, the grants may require that the recipient continue to meet certain requirements throughout their support period, such as maintaining a minimum GPA or participating in a specific activity (e.g. recipient or as a teaching assistant for some graduate fellowships).
• Scholarships may include a cash award, a non-cash award (such as a tuition or dormitory fee waiver), or a combination there of.
What is the purpose of scholarship for students?
Scholarships are designed to reward a student's academic achievement and educational programs.Whether you are starting your career or studying in high school to acquire new skills, receiving a scholarship is a great accomplishment.Learn more about scholarship here.
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Which of the following statements correctly matches a cell part with its function?
Group of answer choices
The cell membrane packages lipids for export
The nucleus produces energy.
The mitochondria perform photosynthesis.
The lysosome digests molecules
Answer:
The lysosome digests molecules
The only true statment from above given options.
hope it helps!
The statements that correctly matches a cell part with its function is the lysosome digests molecules.
What is a lysosome?A lysosome is the organelle of the cell. It is a spherical-shaped organ, and its main function is to engulf molecules that enter the cell and are harmful to the cell.
Thus, the correct option is D.
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What kind of tropism is this??
Answer:
phototropism
Explanation:
This kind of tropism is called Positive Phototropism as the plant is growing towards the light.
Fill the blanks plz
Answer:
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Explanation:
Which of the following is NOT part of a Nucleotide?
Hydrogen Bond
Phosphate Group
Base
Sugar
Answer:
hydorgen bond is not apart of it
What organelle is the arrow pointing to
Answer:
where is the photo, arrow?
Which sequence of human body structures is ordered from most complex to simplest?
O
A. heart cells, heart tissue, heart, circulatory system
B. circulatory system, heart, heart cells, heart tissue
o
C. circulatory system, heart, hobart tissue, heart cells
D. heart tissue, heart cells, heart, circulatory system
Answer:
A
Explanation:
Heart cells are complex to find
Heart tissue is somewhat easy to find
Heart circulatory system is easy to find
How are proteins and nerve cells interrelated?
Answer:
The answer to Your Question Is down below :)
Explanation:
Working with mice, scientists have discovered that a particular protein helps nerve cells extend themselves along the spinal cord during mammalian development.
Which structures are responsible for absorbing sun energy during photosynthesis?
Answer: Chlorophyll, the primary pigment used in photosynthesis, reflects green light and absorbs red and blue light most strongly. In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll.
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1) Dominant alleles are represented by a
Describe the interactions between organisms within an ecosystem. Give an example of a specific relationship that organisms may have, and how this relationship affects the ecosystem.
Answer:
Predation: One Wins, One Loses. Predation includes any interaction between two species in which one species benefits by obtaining resources from and to the detriment of the other.
Competition: The Double Negative. Competition exists when multiple organisms vie for the same, limiting resource.
Mutualism: Everyone Wins. Mutualism describes an interaction that benefits both species.
Commensalism: A Positive/Zero Interaction. An interaction where one species benefits and the other remains unaffected is known as commensalism.
Amensalism: A Negative/Zero Interaction. Amensalism describes an interaction in which the presence of one species has a negative effect on another, but the first species is unaffected.
Explanation:
A person would never have pure water put into their veins in a hospital because their cells would what?
Answer:
causes your blood cells to become hypotonic, possibly leading to death.
Explanation:
Saline water is always used to put into the veins of the patients. Pure water is never used for the purpose:
Saline water is isotonic to the cells in the body.Pure water is hypotonic to the cells in the body.The cells when placed in a hypotonic solution will swell up due to the influx of water inside the cells and will ultimately burst.Thus, freshwater is never used to put in the veins of a person as it will make his cells burst.
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What do RNAs do in the cell?
Group of answer choices
Answer:
A wide range of functions are performed by RNA, from translating genetic information into molecular machines and cell structures to controlling gene activity during development, cellular differentiation, and changing environments.
Explanation:
None
what are two consequences of spraying insecticides to get rid of mosquitos? PLEASE ANSWER QUICK
Answer:
Pesticides used in mosquito control can contribute to immune suppression in humans. A report from the World Resources Institute notes, "Impairment of the immune system by chemical pesticides can lead to allergies, auto immune disorders such as lupus, and cancer.
Explanation:
if a cell contains 40% glucose what is the rest of the cell made up of ?
Which structure is responsible for allowing material into and out of an animal cell?
Group of answer choices
cell wall
nucleus
mitochondria
cell membrane
Answer:
4 one opi am pretty sure wait no it the 3 one
In which situation would water enter a cell through omosis?
Answer:
Water moves into and out of cells by osmosis. If a cell is in a hypertonic solution, the solution has a lower water concentration than the cell cytosol, and water moves out of the cell until both solutions are isotonic.
Explanat
Native bumblebees live in grasslands and consume pollen and nectar from flowers. The bumblebees carry pollen from one plant to another. The bees pollinate most but not all the flowers in their habitat. Amphibians and insects, such as dragonflies, eat bumblebees.
A local resident sets up honeybee hives in the habitat of the bumblebees. Honeybees are a nonnative species that eat the same food as the bumblebees. Food now becomes a limiting factor for the bumblebees.
How might the populations of flowers, bumblebees, and dragonflies change after the introduction of honeybees to the ecosystem?
Group of answer choices
Flowers will increase, bumblebees will decrease, and dragonflies will decrease in population size.
Flowers will decrease, bumblebees will decrease, and dragonflies will decrease in population size.
Flowers will increase, bumblebees will increase, and dragonflies will increase in population size.
Flowers will decrease, bumblebees will decrease, and dragonflies will increase in population size
Answer:
i think it's A. why? because bumblebees pollinate flowers making more grow but dragonflies EAT the bees so they'll decrease.
In the United States, most racial discrimination comes in the form of ________ discrimination.
A. Direct
B. overt
C. indirect
D. extra
Answer:
C, indirect because most people do not admit that they are racist and claim that they didn't do things because they're racist.
Explanation:
In the United States, most racial discrimination comes in the form of indirect discrimination. Therefore, option C is the correct option.
What is indirect discrimination?Indirect discrimination involves the policies or practices that appear neutral on the surface, but deep down have adverse effects on the people belonging to a particular race.
Indirect discrimination can be seen in various areas, such as employment. During a job vacancy, the job applicant requires to speak a high level of proficient English which appears to be a reasonable requirement for the job, but it can lead to a significant impact on non-native English speakers.
Indirect discrimination can be seen in the education field where schools give admissions to only those students who will qualify for a specific education test which may seem unfair to students belonging to a specific race, and having different educational backgrounds.
Therefore, indirect discrimination is the most common form of discrimination observed in the United States.
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