Answers
Answer: Light microscope:
use a beam of light to produce magnified images
can be used to examine living cells and tissues
Scanning electron microscope:
use a beam of electrons to produce magnified images
can be used to examine DNA
can be used to examine cells
Transmission electron microscope:
use a beam of electrons to produce magnified images
can be used to examine DNA
can be used to examine cells
Explanation: Light microscope: is a commonly used microscope also known as compound microscope. Magnifies images from 40X upto 1000X. It uses ray of visible light to produce a magnified image. The light microscope can be used to view specimen of both living and dead cells or tissues. However, it doesn't give a detailed view of a specimen like electron microscope.
Scanning electron microscope: It uses electron beam as an illuminating source. It has a much higher resolving power than light microscope because it uses electrons instead of light. It magnifies object upto 500000 times the actual size. Internal structures can also be viewed. However, only dead specimen can be used because the beam of electrons can kill the cells. They are of two types:
1. Scanning electron microscope(SEM): an electron beam passes over the specimen's surface and displaces electrons which are then focused on a screen to form an image. Images appear in 3-D
2. Transmission electron microscope: electromagnets magnify the image by passing beam of electrons through a thin specimen. Images appear in 2-D
Related Questions
what type of weather is typically associated with the air pressure system near Salem
Answers
Answer:
According to common weather maps of the region surrounding Salem, Massachusets, the weather typically associated with the air pressure system is rain.
Explanation:
Given the nature of warm air and its tendency to rise, warmer regions tend to fall under the low-pressure system category. These systems, due to the movement of the warm air, have lower pressure at their center than in the areas surrounding them. As the wind blows towards the low-pressure air systems, the cooler and warmer air meet within the atmosphere, which causes the water vapor to condense and form clouds. Oftentimes, these clouds then precipitate, causing rain.
The three most common homoglycans found in nature are cellulose, starch and __________. Group of answer choices Amylose Lactose Fructose Glycogen Sucrose
Answers
Answer:
Glycogen
Explanation:
Protecting shoreline communities from tsunamis is a struggle, especially in less developed regions of the world. Explain why your experiment supports this statement.
Answers
Protecting shoreline communities from tsunamis is a struggle, especially in less developed regions of the world because tsunamis are unpredictable. These phenomena have a higher effect on low-income shoreline families.
Tsunamis can be defined as giant ocean waves due to earthquakes and/or volcanic activity that occur under the sea.
Tsunamis may devastate entire shoreline communities because they are unpredictable and they speed along like a jet plane.
Tsunamis mainly affect shoreline low-income families in developing countries because the houses in which these people live in developing countries are rudimentary.
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what is a protein that recognizes and responds to a signal
Answers
The answer to your question is receptors.
Receptors
Explanation: any molecule present outside the cell that can elicit a response inside the cell when the molecule binds to a receptor.
Down's syndrome occurs because of a(n)
missing sex chromosome
extra sex chromosome
additional 21st chromosome
additional 18th chromosome
Answers
Answer:
C.Additional 21st chromosome
Explanation:
Hope this helped :)
can divide indefinitely, and under the right conditions, can (hypothetically) develop into a wide variety
of different specialized cells.
A Regenerated cells
B Embryonic stem cells
C Adult stem cell
D Cancer cells
Answers
57- From classes of Phylum: Annelida
A- Cestoda
B- "Trematoda
C- Myriapoda
D- Oligochnota
Answers
Answer:
D- Oligochnota.
......
how do i write an email to apply for university
Answers
Answer:
Well personally I haven't written an email to apply for a university but i'll try to help.
Composing your Email
1. Find your admissions officer
If possible, locate the email of the admissions officer for your region. For example, if you live in Florida, you want to target the email to the admissions officer that reads for the Southeast. It is important to locate the admissions officer for your region since they will be the person reading your college application when you submit it. They should be familiar with your name and remember you positively.
2. Address the admissions officer properly
Begin your email by addressing the admissions officer in a kind, proper manner. Don’t use slang or abbreviations that you might use with your peers while texting. Your writing should highlight your maturity and ability to communicate in a professional setting.
“Good morning, Ms. Smith,”
“Hello, Mr. Johnson,”
3. Introduce yourself
Admissions officers receive hundreds of emails a day from prospective students so a concise email that simply gets to the point saves time and energy. Therefore, you shouldn’t spend a great deal of time introducing yourself. You are unlikely to increase your probability of acceptance by sending an email detailing your life’s accomplishments. Instead, write a brief sentence or two, providing your name and any relevant background information that may inform their answer.
“My name is Hayley Hall and I am applying to Pomona College in the Fall of 2020. I am particularly interested in majoring in Engineering.”
4. Be specific
Once you have provided your name and relevant information, ask specific questions. Don’t ask generic questions you should already know the answer to from your college search.
Avoid questions like:
“What’s the acceptance rate for UCLA?”
“What does Yale look for?”
“How much does each credit hour cost for in-state students?”
Colleges provide lots of general information about the school on their website. Search their website thoroughly before reaching out. If you ask for information that the college already provides, it might signal to an admissions officer that you haven’t done your due diligence looking for information on your own.
Instead, ask more detailed questions like:
“What types of companies does the College of Engineering have partnerships with?”
“When do most students start performing research?”
“What would you say students are most excited about on campus?”
These kinds of questions prove that you have done your research but want more in-depth information about their university. Your curiosity will bode well with an admission officer. It will signal you are seriously considering their university. Their answers will help you make informed decisions about the schools you are considering and potentially provide information for your “Why This College” essay!
5. Do not be afraid to ask questions about your required materials
You can also email admissions officers to confirm they have received all of your materials. For example, if you have sent in your SAT/ACT scores but haven’t received a confirmation email from the school that they received it, you can follow up with the school. The email should be detailed, concise, and professional.
calculate the magnification of the drawing below, If the length of the leaf is 30mm and the length of the drawing made was 100mm
Answers
Answer:
10
Explanation:
The magnification of the drawing made was 10 because it had a length of 100mm and originally had a length of 30mm. It can also be said that the magnification is 3 since dividing by the original length (30) we get: 100/30 = 3.
explain four example of cybercrime
Answers
Answer: Hacking.
XSS: Cross-Site Scripting.
Denial-of-Service Attack.
Phishing Scam.
Spamming.
Explanation:
A local watershed carries runoff from farms, suburban lawns, and wastewater treatment plants into local rivers, and eventually into a local bay. How could this affect the health of the bay?
A. It could make water hypoxic for organisms.
B. There will be an increase of aquatic plants and fish.
C. It could increase dissolved oxygen for fish.
D. There will be decreased nutrients in the water.
Answers
Answer:
answer should be "making water hypoxic for organisms". reason is because the runoff from these treatment plants are filled with nutrients, which will cause eutrophication. eutrophication is excessive algae sprouts which create more DO but then later becomes all used up when they decompose, making it so other organisms have no oxygen.
The runoff water from farms, suburban lawns, and wastewater treatment plants into local rivers affects the health of the bay by making water more hypoxic for organisms. Thus, the correct option is A.
What is Local bay?A Local bay may be defined as an area of the sea or other water bodies which are usually smaller than a gulf. It is mostly surrounded by water.
The runoff water from farms, suburban lawns, and wastewater treatment plants contain an enormous amount of nutrients that assist the growth of algae over the surface of water bodies known as eutrophication.
These algae consume all much of the available oxygen of the water body and make the environment hypoxic i.e. oxygen deficient.
Therefore, the correct option for this question is A.
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photosynthesis and cellular respiration scientific principles
Answers
Explanation:
Photosynthesis makes the glucose that is used in cellular respiration to make ATP. ... While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide. It is the released oxygen that is used by us and most other organisms for cellular respiration.
Which is a heterotroph?
A. Grass
B. Lion
C. Dandelion
D. Oak Tree
Answers
Answer:
Lion
Explanation:
Heterotrophs are known as consumers because they consume producers or other consumers. Dogs, birds, fish, and humans are all examples of heterotrophs. Heterotrophs occupy the second and third levels in a food chain, a sequence of organisms that provide energy and nutrients for other organisms.
Mountain lions, or cougars, are carnivorous heterotrophs and feed on a wide range of prey, such as insects, small mammals, reptiles and birds, but their most common prey is deer.
Grass, like the majority of green plants, is autotrophic. Thus, Grass produces its food through the photosynthesis process, which uses solar energy, water, and carbon dioxide. Thus, it is not a Heterotroph.
Dandelion is a typical photosynthetic autotroph. (Dandelion) An autotroph is an organism that can produce its own glucose and use it as energy. The Dandelion is a plant that can preform photosyntesis by collecting sunlight, water, and nutrients and create it’s own glucose. This makes the Dandelion an autotroph.
Trees, like all other plants, are autotrophic, meaning that they can produce food through the process of photosynthesis. Oak trees are considered autotrophs because they produce their own food.
what is iris diaphragm
Answers
Answer:
noun Optics, Photography. a composite diaphragm with a central aperture readily adjustable for size, used to regulate the amount of light admitted to a lens or optical system. Also called iris.
Explanation:
Thanks!
g What is the ultimate cause of the many extinctions for the megafauna (Diprotodon, Giant Wombat, Marsupial Lion, Giant Goanna, etc) once found in Australia
Answers
Answer:
These animals are thought to have succumbed to hunting pressure related to the expansion of Australia's human population.
Biology which statement applies to cholesterol?
A. It is hydrophobic and found on the outside of the phospholipid biyaler
B. It is hydrophilic and found inside the phospholipid bilayer
C. It impacts membrane fluidity.
D. It is transported in association with glucose in the blood.
Answers
The true statement about cholesterol is that; " It impacts membrane fluidity."
Cholesterol is one of the steroids in the body and serves as a constituent of many hormones. Cholesterol consists of a hydrophilic and a hydrophobic part hence it is able to interact both with aqueous and nonpolar environments.
Cholesterol impacts membrane fluidity in the sense that it regulates the direction of membrane fluidity. At high temperatures, cholesterol raises the membrane temperature whereas at high temperatures, it intercalates between phospholipids thereby preventing stiffening.
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Which three structures are found in both prokaryotic and eukaryotic cells?
A. cytoplasm, endoplasmic reticulum, DNA
B. ribosomes, DNA, cytoplasm
C. nucleus, cell wall, cell membrane
D. cell membrane, endoplasmic reticulum, ribosomes
Answers
The answer is B. Prokaryotes do not have endoplasmic reticulum, cell wall, cell membrane or a nucleus. But they do have DNA (just not in a membrane bound nucleus), ribosomes, and cytoplasm.
Choose all options that apply. Which of the following medications are considered high-alert medications? | a) Heparin b) Insulin c) Ibuprofen d) Penicillin
Answers
Answer:
Insulin
Pls mark as brainliest answer if it helps you
L 3.2.2 Quiz: Matter and Energy
Question 5 of 10
Which substance is an example of organic matter?
A. Carbon dioxide
B. Oxygen
C. Salt
O
D. Sugar
Answers
Answer:
D
Explanation:
An example of organic matter is sugar
Carbon dioxide is inorganic. Oxygen is neither while salt is inorganic.
Norma claims she pushed the button "for us" (to benefit her husband and herself )? Do you believe her or not ? Explain
USE R.A.C.E STRATEGY AND WRITE AT LEAST ONE PARAGRAPH ( or at least 6 sentences) NO BOTS OR LINKS
Answers
Help please, am I even doing this right?
Answers
Answer:
Looks good to me :)
Explanation:
The trapezius is a(n) _____ to the pectoralis major.
Answers
Answer:
complement
Explanation:
The trapezius is a complement to the pectoralis major.
What is Trapezius?The trapezius may be characterized as one of the widest and most superficial muscles that are located in the upper back and trunk region. It is triangular in structure, wide, and thin that encircles the upper back of the shoulders and neck.
While the pectoralis major is the most superior and largest muscle that is located within the region of the anterior chest wall. This muscle is thick, fan-shaped in appearance positioned beneath the breast tissue, and constructs the anterior wall of the axilla.
Both of these muscle types complement each other in every aspect such as location, structure, appearance, etc.
Therefore, The trapezius is a complement to the pectoralis major.
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which describes fat?
A. a lipid that stores energy
B. a nucleic acid that directs cell function
C. a protein that speeds up a chemical reaction
D. a carbohydrate that produces energy
Answers
Answer:
The answer is A
Explanation:
a lipid that stores energy
brian period occurred approximately 500 million years ago, and we are currently in the Quaternary period.
PERIOD
ANIMALS
PLANTS
Humans
Flowering
plants
Mammals
Birds
Ginkos
Quatemary
Tertiary
Cretaceous
Jurassic
Triassic
Permian
Pennsylvanian
Mississippian
Devonian
Silurian
Ordovician
Cambrian
Reptiles
Pines
Amphibians
Club mosses
Horsetail rushes
Fems
Animals with shells
Fishes
Based on the chart, describe the trends that can be observed in animal and plant fossils as they evolved over time.
Use evidence from the chart to support your conclusions.
B IV x x Font Sizes
А 三星 三 三
А
Answers
The small-brained Plio-Pleistocene hominins are generally referred to as the _____. The major members of this group are divided into two major groupings, the _____ and the robust forms. Many scientists prefer to separate the robust forms even further into their own genus and/or subgenus, _____.
Answers
Scientists make archaeological findings to discover how human life began as well as the forms of life that existed in the past. The blanks in the sentences above have been filled accordingly;
The small-brained Plio-Pleistocene hominins are generally referred to as the Africanus. The major members of this group are divided into two major groupings, the gracile and the robust forms. Many scientists prefer to separate the robust forms even further into their own genus and/or subgenus, Paranthropus.The Hominin are primates under which the Paranthropus and Australopithecus. These genii are early relatives of man.
These small-brained Plio-Pleistocene hominins are generally grouped into the gracile and robust forms.
The Paranthropus are the robust genus while the Australopithecus are the gracile genus.
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Traditional Chinese culture is the general term for national civilization, customs and spirit. The definition of "culture" is often "the benevolent see benevolence, and the wise see wisdom". Simply put, traditional Chinese culture is based on the three schools of Confucianism, Buddhism and Taoism. The three are interdependent, infiltrate and influence each other, and build the whole of Chinese traditional culture. The ideas of these three traditional cultures are collectively called the "Three Religions" in China.
Answers
Answer:
Chinese traditional culture
Explanation:
Chinese traditional culture
Why don't the hydrolytic enzymes Within lysosomes destroy each other?
Answers
Answer:
A lysosome is a membrane-bound cell organelle that contains digestive enzymes. They break down excess or worn-out cell parts. They may be used to destroy invading viruses and bacteria. If the cell is damaged beyond repair, lysosomes can help it to self-destruct in a process called programmed cell death, or apoptosis.
Explanation:
Question 1: DNA remains in the nucleus. mRNA can travel in and out of the nucleus. Explain how the function of DNA and mRNA differs. ( Will Mark Brainliest and please only answer if your company 100% sure. And Do Not Repost Someone Else's Answer that is on Brainly Or Any Other Websites Please.
Answers
Answer:
DNA is a nucleic acid that carries the genetic instructions but mRNA carries information from the DNA to the cytoplasm where proteins are made
Plan for holidays and special yearly events with your advertising.
True
False
Answers
Answer: False
Explanation: True
1)
A hummingbird may need to consume up to 50% of its body weight in sugar each day, just to meet its energy needs. Some of this energy is stored and some is used for metabolic activities, but much of the energy is
A)
converted into amino acids needed for the production of starch
B)
released as heat energy back into the hummingbird's environment
C)
changed into radiant energy, which can be used by plants for photosynthesis
D)
used to synthesize inorganic compounds necessary for cellular respiration
Answers
Energy conversions are common in nature. Much of the energy from the breakdown of the hummingbird body weight is released as heat energy back into the hummingbird's environment.
According to the laws of thermodynamics, energy is neither created nor destroyed but is converted from one form to another. Living things take in food to release energy to carry out their daily activities.
Sometimes, energy is obtained from the breakdown of body fat. In either case, much of this energy is released back into the environment as heat energy.
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