Resolution is the ability that a microscope has to distinguish fine details. Without making any other adjustments the RESOLUTION can be increased by focusing properly in a brightfield microscope.
A brightfield microscope (also called compound light microscope) is a light microscope that produces dark images against a bright background.
The brightfield microscope is widely used in cellular biology and microbiological laboratories.
The resolution of the brightfield microscope is limited to 0.2 micrometers (µm).
This maximum value can be reached by changing the objective lens.
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a person with an xo genotype is classified as having
A trait is :
A: a characteristic
B:a change
C:a removal
what pathogen causes TMV
Answer:
The tobacco mosaic virus infects tobacco and lots of other closely related species like tomatoes and peppers. It is transmitted by contact between plants, either naturally or on the hands of farmers. It infects the chloroplasts of plant leaves and changes their colour from green to yellow or white in a mosaic pattern.
tissue cultures samples of cancer cells are taken from cancer patients
Answer: Not quite sure how to answer that
Explanation:
. List the measures to reduce noise pollution.
Answer:
Turn off Appliances at Home and offices. ...Shut the Door when using noisy Machines. ...Use Earplugs. ...Lower the volume. ...Stay away from Noisy area. ...Follow the Limits of Noise level. ...Control Noise level near sensitive areas. ...Go Green by planning trees.HELP NOW PLZ
Which of the following best describes what happens when an oceanic plate converges with a continental plate?
A: Both plates crumple and a folded mountain range forms.
B: Both plates become fractured, and a series of long faults form on the surface.
C: A deep-sea trench and island arc form.
D: A trench and a mountain range with many volcanoes can form.
Answer:
a
Explanation:
:)
what organelle transports materials within the cell
Answer:
The endoplasmic reticulum
Explanation:
hope this helps you if it does please mark brainliest
predict how many molecules of carbon dioxide are produced from the mitochondrial burning of one molecule of glucose?
Your awnser to the question is 3
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what makes cartilage an unusual connective tissue?
Cartilage essentially lacks blood vessels coursing through the cartilage. The elastic connective tissue is found in the large blood vessels of the body.
which features are found only on thoracic vertebrae?
Answer:
The characteristic feature of thoracic vertebrae is the presence of joints that articulate with ribs. A mid-thoracic vertebra (shown here) has two joint facets on the vertebral body for the heads of adjacent ribs, and a third joint facet on the transverse process for the neck of a rib.
Explanation:
how many bones does a human have in their body
12.What is an invasive species?
A native species which are added to an area
A keystone species in an environment
A non-native species added to an area
Answer:
An invasive species is an introduced organism that becomes overpopulated and negatively alters its new environment. Although their spread can have beneficial aspects, invasive species adversely affect the invaded habitats and bioregions, causing ecological, environmental, and/or economic damage.
To be invasive, a species must adapt to the new area easily. It must reproduce quickly. It must harm property, the economy, or the native plants and animals of the region. Many invasive species are introduced into a new region accidentally
A keystone species is an organism that helps define an entire ecosystem. Without its keystone species, the ecosystem would be dramatically different or cease to exist altogether. ... Any organism, from plants to fungi, may be a keystone species; they are not always the largest or most abundant species in an ecosystem
An invasive species is an organism that is not indigenous, or native, to a particular area. Invasive species can cause great economic and environmental harm to the new area.
Can anyone please this? ASAP
Answer:
i can't see this
Explanation:
Answer:
Answer is B
Explanation:
OK. you seem to be lazy to observe. you have to observe each nitrogenous base pair to check whether if it's paired with the right one. according to the rules of biology, two purines and two pyrimidines pair with each other. following are the mistakes of each diagram except B.
A- In the 6th pair, Guanine has paired with Guanine.
C- In the 3rd pair, Adenine has paired with Adenine.
D- In the 10th pair, Guanine has paired with Thymine.
All the above incidents are impossible in the biology of earth.
which of these is a source for particulate matter in the air?
Answer:
Particulate Matter (PM) Sources Components of particulate matter (PM) include finely divided solids or liquids such as dust, fly ash, soot, smoke, aerosols, fumes, mists and condensing vapors that can be suspended in the air for extended periods of time.
Explanation:
Automobiles, dust, and fires are source for particulate matter in the air. Therefore option D is correct.
Particulate matter (PM) refers to tiny particles suspended in the air that can have harmful effects on human health and the environment. Sources of particulate matter in the air include automobiles, dust, and fires.
Automobiles emit exhaust emissions that contain particulate matter, especially from diesel engines. Dust particles can be generated from various sources such as construction sites, unpaved roads, and agricultural activities.
Fires, including both wildfires and controlled burns, release smoke and ash particles into the air. These particles can vary in size and composition.
All of these sources contribute to the presence of particulate matter in the atmosphere, and their emissions can have detrimental effects on air quality and public health if not properly managed or controlled.
Therefore option D all of the above is correct.
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Your question is incomplete, but most probably your full question was,
Which of these is a source for particulate matter in the air?
A. automobiles
B. dust
C. fires
D. all of the above
Somebody help me please
Answer:
c
Explanation:
What is the rarest bird in the world currently?
Answer:
I believe it is the Bahama Nuthatch. But, I might be wrong, for it is a guess. Please let me know if I am correct or if I am wrong.
Answer:Madagascar Pochards
Explanation: The Madagascar Pochard, or sometimes known as the Madagascan pochard, is a very rare diving duck of the genus Aythya. Thought to be extinct in the late 1990s, individuals of the species were recovered in 2006 near Bemanevika, Madagascar, at Lake Matsaborimena. The species is only found in Madagascar's interior marshes, where it is endemic. The sole wild populations are currently found in Lake Sofia and Lake Matsaborimena. Meanwhile, there are slightly over 50 pochards at Bemanevika.
What is a sister chromatid?
1. a full-sized singular chromosome
2. an irregularly divided chromosomes
3. a complete duplicated chromosome
4. half of a duplicated chromosome
Answer:
4. half of a duplicated chromosome
Explanation:
in mitosis,when a cell splits its called a sister chromatid
which component of dna are held together by weak hydrogen bonds?
Answer:
the paired bases( nitrogenous bases )
In the 21st century, the international community tried to punish North Korea
because:
A. it refused to join the United Nations.
B. it treated racial minorities poorly.
C. it committed human rights violations.
o
O
D. it invaded several neighboring countries.
Answer:
d it invaded several neighboring countries
Explanation:
The DNA structures of prokaryotic and eukaryotic cells share similarities and differences. One way in which they are the same is that
A. both have sugar-phosphate backbones
B most of the DNA is in the form of plasmids
C both have a singular circular chromosome
D the DNA is packaged into several linear pieces
One way in which the DNA structures of prokaryotic and eukaryotic cells are similar is that both have sugar-phosphate backbones.
The DNAs of all living organisms, be it prokaryotes or eukaryotes, are similar and consists of 3 major chemical groups:
5-carbon deoxyribose sugarsnitrogenous purine or pyrimidine basesphosphate groupThe pentose deoxyribose sugar and the phosphate group form the backbone of the structure of DNA. The sugars are linked together by phosphodiester bonds formed between the carbon 4 of each sugar and the methyl group attached to the phosphate.
The similarity in the structure of DNA of all living organisms is one evidence being used to support the evolution of living organisms from a common ancestor.
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Answer:
Your answer would be A!
Explanation:
both have sugar-phosphate backbones
Name four ways synthetic fibers are different from each other?
*forensic science*
Synthetic fibers can vary greatly from one another. The main reason they can have such varying characteristics is that they can be of four distinct types.
Synthetic fibers are those that cannot be found in nature, but rather are created by man. They can be of four types:
Nylon RayonPolyesterAcrylicRayon is one of the types of synthetic fibers created by man. One of the weaker fibers, It is commonly referred to as synthetic silk, having many properties similar to those of silk. It is the result of wood pulp being fused with cotton or wool and is commonly used to create beddings and other home decorations, in varying colors.
Nylon shares few, if any, characteristics with rayon. It is a strong and elastic synthetic fiber. In fact, nylon is stronger than steel wire, even though it is created from water, coal and air. Nylon can be found in tents, climbing equipment, toothbrushes, and many more everyday appliances.
Polyester is a stranger form of synthetic fiber. As its name implies, it is formed from the repetition of esters. Polyester is often used for dressing, given its wrinkle-free properties and resistance. However, many kinds of polyesters exist, leading to its use in bottles, wires and more.
Finally, Acrylic is the final kind of synthetic fiber. Acrylic is a fiber which is normally used to replace wool. Acrylic can be seen used in blankets and sweaters. It is also often used to create panels that will imitate glass, which shows exactly how flexible and useful synthetic fibers can be.
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according to plato, where do souls have to drink before starting their new lives on earth?
According to Plato, the souls of people tend to reincarnation, that is, the souls of each person have had previous lives in which they have developed and have had different experiences.
Thus, as a way to generate an impartiality of the soul, which allows it to start a new life without influences on previous lives, they should drink water from the River of Forgetfulness.
This made the souls unable to remember anything from their previous lives or the adrenal world in which they were before coming back to life.
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please help its due today 50pts
appreciate it
You may choose either a plant cell or an animal cell. You must include the following parts of the cell:
Cell Wall (Plant only)
Cell Membrane
Cytoplasm
Nucleus
Endoplasmic Reticulum
Golgi
Ribosomes
Lysosomes
Vacuoles
Chloroplasts (Plant only)
Mitochondria
Cell City Map
Draw (or create a drawing using a program like PowerPoint) a city map and label locations that are analogous to the parts of the cell.
Your map should:
Include illustrations of each location.
A legend that identifies each location and explains how it relates to each part of the cell.
Be colorful, clear, and carefully drawn.
(Solo or Group)
Cell Story
Write a story in which the setting or the characters are analogous to parts of the cell. Throughout your story, you will include footnotes linking your setting elements or characters to parts of the cell. Your explanations must highlight a key characteristic of each part of the cell.
Your story should:
Include representations of each part of the cell.
Include footnotes explaining the links between your representations to the parts of the cells
Be written with proper grammar, spelling, and formatting.
Answer: cytoplasm: a thick solution that fills each cell and is enclosed by the cell membrane.
Nucleus:the central and most important part of an object, movement, or group, forming the basis for its activity and growth.
Explanation:
“Astro” is to do with space, stars
True or False
True
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what is a chain of molecules linked with peptide bonds
Answer:
polypeptide chain
Explanation:
each amino acid unit in a polypeptide is called a residue. A polypeptide chain has polarity because its ends are different, with an α-amino group at one end and an α-carboxyl group at the other.
A chain of molecules connected by peptide bonds forms a polypeptide, a fundamental component of proteins. Peptide bonds are chemical bonds that link amino acids, the building blocks of proteins. This chain structure determines a protein's shape and function.
A polypeptide is made up of a series of molecules connected by peptide bonds and is an essential component of proteins. The coupling of amino acids is made easier by peptide bonds, which are produced by a condensation reaction between the carboxyl group of one amino acid and the amino group of another.
These amino acids, which are the building blocks of proteins, each have a distinct side chain, or R-group, which influences their characteristics. A polypeptide chain's amino acid composition determines the protein's three-dimensional shape, which is essential to its function. This complex link between structure and function emphasizes the importance of peptide bonds in biological processes.
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Example of carbohydrates being used for structure or support in a living organism
Answer:
starch, glycogen, cellulose, and chitin
Explanation:
PLEASE HURRY!!!
In the preparation of the Krebs Cycle
a) Glycolysis will be broken down in Pyruvate
b) Pyruvate will be transformed into Acetyl-COA
c) Acetyl-CoA will be transformed into Pyruvate
d) Ethanol will be produced
Answer:
b) Pyruvate will be transformed into Acetyl-COA
Arrhythmia can cause the heart to beat in which of the following ways?
*d. all of the above
Answer:
d
Explanation:
Why does road salt cause changes to nearby plants?
Answer:
increasing water stress
Explanation:
The foliage on roadside vegetation is damaged when salted water sprays up from the pavement by passing vehicles. Salt-laden water can also percolate down through the soil profile, coming into contact with soil particles, soil microbes, and plant roots. Salt injures vegetation by: Increasing water stress
What is the difference between distance forces and contact forces? What would be an example of each?
Contact forces involve push . Contact forces involve push, pull and friction. ... At a distance At a distance force is when two interacting force is when two interacting objects are not touching, for example: the moon and the Earth's seas. At a distance forces encompasses gravity and magnetism.