Answer:
Electron microscopes differ from light microscopes in that they produce an image of a specimen by using a beam of electrons rather than a beam of light. Electrons have much a shorter wavelength than visible light, and this allows electron microscopes to produce higher-resolution images than standard light microscopes.
PLEASE HELP IM IN DESPERATE NEED OF GETTING A 100%!!!! I WILL MARK BRAINLIEST TO WHOEVER ANSWERS FIRST!!! MAYBE VENMO!
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Constructing a Device to Regulate the Release of Energy - Student Guide
Constructing a Device to Regulate the Release of Energy - Rubric
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What is a possible reason for extinction?
The number of habitats falls below a critical level.
Too many resources
Less competition
Less number of new predators
Answer:
The number of habitats falls below a critical level.
Explanation:
The possible reason for extinction is that the number of habitats falls below a critical level. This makes it impossible for organisms to survive.
A habitat is the dwelling place of living organism in an ecosystem. The resources and other materials that ensures the survival of an organism are made available in the habitat. When a habitat begins to thin out and can no longer support organisms, then extinction will ensue.Which of the following is NOT a correct statement for plant tissue sampling procedures?
O Plant tissue samples should be free of soil particles
O The samples should be taken between mid-morning and mid-afternoon
O Taking any plant part for sampling is acceptable
O Rainy weather should be avoided when taking samples
Answer:
The answer is C: Taking any plant part for sampling is acceptable.
Explanation:
I have Agriculture and I took the test and I get the answer wrong the first time, but it told me the right answer after I got it wrong and it said that it was this.
During plant tissue sampling any plant part for sampling is not acceptable.
What is plant tissue sampling?Sampling of the plant tissue is an essential component of a crop fertility program. The analysis of the plant sample is generally done to see whether the crop is taking the nutrients appropriately or whether the plant is suffering from any kind of deficiency.
At the time of plant tissue sampling, one should not sample dust or soil contaminated tissue, that is, it should be free of soil particles. One should keep in mind that generally sampling is done between mid-morning and mid-afternoon.
The sample should be free from any kind of moisture, therefore, rainy weather should be avoided. During plant tissue sampling, any part of the plant is not sampled, generally the leaves or petioles of the plant is sampled for analysis.
Thus, the incorrect statement is the third one, that is, taking any plant part for sampling is acceptable.
Find out more information about plant tissue sampling here:
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Select the correct answer.
Which part of a neuron contains the nucleus?
A.
axon
B.
cell body
C.
dendrite
D.
myelin sheath
E.
neural impulse
Answer:
the cell body contains the nucleus
Answer: The cell body
Explanation: I did the test its right!!!!
What is the main force that drives deep ocean currents?
Answer:
water density
Explanation:
These deep-ocean currents are driven by differences in the water's density, which is controlled by temperature (thermo) and salinity (haline). This process is known as thermohaline circulation. In the Earth's polar regions ocean water gets very cold, forming sea ice.
hope this helps you
state two factors that determine choice of a microscope during biological investigations
Answer:
An optical microscope is often one of the central devices in a life-science research lab. It can be used for various applications which shed light on many scientific questions. Thereby the configuration and features of the
One of the first things to consider when selecting a research microscope is the type of specimen you want to explore. For fixed samples mounted on a thin glass slide, you can use an upright microscope. Living cells demand special characteristics of the microscope because they are kept in relatively large cell culture vessels filled with cell culture media.
Explanation:
I hope this was what you were looking for and I hope it helps!
Which quality best describes a producer with an absolute advantage?
efficient
fast
accurate
prolific
Answer:
A
Explanation:
Trust me :)
The quality that best describes a producer with an absolute advantage is efficient.
What is a producer?In business, a producer can be defined as a person/industry who generates and supplies goods and/or services.
Some features of producers include:
Efficiency Versatility to challenging conditionsCreative skillsProducers need to combine different labor and capital to generate a particular output, ie, a good or service.
In conclusion, the quality that best describes a producer with an absolute advantage is Efficient.
Learn more about producers here:
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Two plants are crossed to produce offspring. One parent plant has dark blue flowers, and the other parent plant has white flowers. Flower color in these plants is a codominant trait.
Which of these is a possible description of the offspring?
some flowers with white petals and some with light blue petals
some flowers with dark blue petals and some with white petals
all flowers with light blue petals
all flowers with some dark blue petals and some white petals
Answer:
All flowers with some dark blue petals and some white petals.
Explanation:
When there is a co-dominant trait, the trait is shared.
Example: one parent has a B blood type, and the other A. Their child will have BA.
Answer:
D. all flowers with some dark blue petals and some white petals
Explanation:
got it right edge 2021
Please dont answer to my question if you dont have an answer
Here is the Homo sapiens amylase alpha 1A mRNA sequence obtained from an individual incapable of digesting starch.
AUGAAGCUCUUUUGGUUGCUUUUCACCAUUUAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
Give the sequence of the first 10 amino acids in the protein (translate the first 30 nucleotides in the coding sequence). Use the full names for each amino acid.
Answer:
AUG - methionine
AAG - lysine
CUC - leucine
UUU - phenylalanine
UGG - tryptophan
UUG - leucine
CUU - leucine
UUC - phenylalanine
ACC - threonine
AUU - isoleucine
Explanation:
Break the mRNA sequence into codons of three nucleotides each and identify what amino acid codes with each codon.
UAA is a stop codon and signifies the end of translation so any nucleotides after it will not be translated.
Hope that helps.
Which two structures have functions that are the most similar?
A. swimmerets in crustaceans and claws in centipedes
B. claws in crustaceans and antennae in insects
C. stingers in arachnids and claws in centipedes
D. fangs in arachnids and antennae in insects
Answer:
c
Explanation:
Answer:
It is C
Explanation:
Cellular respiration occurs in a series of steps. If pyruvate enters the mitochondrion,
how much total energy can we assume will be produced?
8 molecules of pyruvic acid
38 molecules of ATP
2 molecules of ATP
14 molecules of oxygen
Answer:8
Explanation:
Pyruvic acids are transformed by oxidative decarboxylation into acetyl-CoA, molecules of NADH, and molecules of CO2 when they enter step two of aerobic cellular respiration producing 38 ATP, hence option b is correct.
What is Cellular respiration?
Since it joins or links the Krebs cycle and glycolysis, this procedure is also known as the link reaction or transition step.
One glucose molecule undergoes chemical processes that result in two pyruvic acid molecules, two ATP molecules, ten NADH molecules, and two FADH2 molecules.
Therefore, as a result, we know that the four pyruvic acid molecules make acetyl-CoA, which then enters the Krebs cycle to produce at the end 38 molecules of ATP are formed.
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Bacteria have become resistant to antibiotics. This can happen in a short period because they
reproduce so quickly. What might be some of the consequences to humans
Answer:
The result is that certain antibiotics can no longer be used to successfully treat certain infections. This significantly affects our ability to prevent and treat these diseases, increasing recovery time, the length of time people stay in hospital and death rates.
Explanation:
cane toads are large non-native poison toads in Australia after cane toads entered please help
Australia scientist observed that the average head size in a population of toad eating snakes with getting smaller snakes with smaller heads are not able to eat this large cane toads what is the situation called
A. speeches richness
B. stabilizing selection
C. fitness
D. directional selection
Answer:
D. Directional selection
Explanation:
Are different dog breeds different species? Why or why not?
Answer:
They are the same species.
Explanation:
Full question: How come some similar animals are different species, while with domestic dogs, wildly dissimilar types are considered different breeds?
-- Z. Kornberg, Jerusalem
Michael Bruford, a professor of biological sciences at Cardiff University in Wales, explains the thought process behind this seeming double standard.
Scientists have been distinguishing between species on the basis of how they look, behave or live since recorded history began. However, two famous scientists stand out in terms of how we perceive species differences today: Carl Linnaeus, an 18th-century Swedish naturalist, and Charles Darwin. Linnaeus was the first person to formulate a single approach for describing species in a hierarchical manner according to their similarity, using his binomial nomenclature of genus followed by species (Homo sapiens, for instance). Darwin was among the first people, and certainly the most celebrated among them, to develop a credible theory on how species evolve (via natural selection). Both of these scientists' insights underpin most of what modern science utilizes when studying species and speciation.
Currently species are still primarily distinguished by their appearance, but it is becoming very clear that looks don't always tell us all we need to know about whether two organisms are different. Many so-called cryptic species exist that, to the untrained eye, look very similar or even identical to another organism--commonly found, for example, in nocturnal mammals such as bats and bush babies. If the two mated, however, they may never be able to produce viable offspring; this, in fact, is the primary criterion for dividing similar organisms into different species. Because of these red herrings--and also because the process of describing species is very long and labor-intensive--scientists are increasingly turning to DNA to assist them in identifying and describing species.
Which cellular communication appears to be signaling between cells that are separated by long distance?
A. autocrine
B. paracrine
C.endocrine
D.juxtacrine
Bile juices help in the breakdown of fats. An injury to the
may cause a decrease in the production of bile juices. This decrease in bile juices may lead to decreased production of
.
Answer: Liver and then Fatty Acids
Explanation: Because I got it right on the test.
Bile salts, which are necessary for the emulsification and absorption of fats in the small intestine.
What is bile juice?Bile juice is a yellow-green liquid that is produced in the liver and stored in the gallbladder. It is made up of bile salts, cholesterol, and waste products such as bilirubin. Bile helps in the digestion and absorption of fats in the small intestine. It works by emulsifying fats into smaller droplets, which increases the surface area available for enzymes to break them down.
Bile also helps in the absorption of fat-soluble vitamins, such as vitamins A, D, E, and K. Bile is released into the small intestine in response to the hormone cholecystokinin, which is secreted when fatty foods enter the stomach. Inadequate production or secretion of bile can lead to problems with digestion and absorption of fats, such as diarrhea, malnutrition, and deficiencies of fat-soluble vitamins.
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Winston studies a topography map that shows camping and hiking areas.
Winston is most likely using the map for which purpose?
science
engineering
government
recreation
Answer: D Recreation
Explanation:
camping and hiking are recreational activites so D is the correct answer
Answer:
The correct answer is D) Reaction
what is a group of tisses called
Answer:
Organ
Explanation:
Hey there!
I believe a group of tissues working together is called an organ.
Density-dependent factors differ from
density-independent factors in which of the
following ways?
Answer:
Density-dependent regulation can be affected by factors that affect birth and death rates such as competition and predation. Density-independent regulation can be affected by factors that affect birth and death rates such as abiotic factors and environmental factors, i.e. severe weather and conditions such as fire.
Is sickle cell anemia caused by genetic or environmental factors
Answer:
Genetic, geographic & cultural factors that cause sickle-cell anemia. It is important to note that even genetic diseases are caused by multiple social, environmental and biological factors. This is particularly true in the case of sickle-cell anemia, a genetically inherited blood disorder usually found in people with West African ancestry (PBS 2001).
Answer:
genetic
Explanation:
i searched it up on google
Use the drop-down menus to complete each sentence.
are organisms that contain more than one cell with membrane-bound organelles and a nucleus.
Organisms that contain only one cell and do not contain a nucleus or membrane-bound organelles are known as
.
Answer:
- Eukaryotes are organisms that contain more than one cell with membrane-bound organelles and a nucleus.
- Organisms that contain only one cell and do not contain a nucleus or membrane-bound organelles are known as prokaryotes.
Explanation:
According to their structural and functional complexity, organisms can be classified into eukaryotes and prokaryotes.
Eukaryotic organisms are formed by cells that have a true nucleus -where DNA is located- and specialized structures called organelles, with a system of endomembranes that compartmentalize the intracellular space. These organisms are usually pluricellular, given the ability of eukaryotic cells to group together to form tissues. Prokaryotic organisms are single cells, lacking a nucleus - genetic material is scattered in the cytoplasm - and do not possess organelles. The prokaryotic cells that form these organisms are incapable of binding together, so they do not form tissues.Some unicellular organisms are prokaryotic cells, like some parasitic microorganisms, such as amoebas.
Answer:
1)eukaryotes
2)prokaryotes
Explanation:
just took it on edge(:
Malignant tumors definition
A tumor that invades surrounding tissues, is usually capable of producing metastases, may recur after attempted removal, and is likely to cause death unless adequately treated.
Which unwanted plants in the field tend to compete with crops for resources?
_____________ are unwanted plants in field that tend to compete with crops for resources.
PLZ help.
Answer:
Weeds are unwanted plants
Answer: Weeds
Explanation: correct on plato
What are the 3 types of formations and what boundaries do they sit at
I’m doing a test and all my makeup work and I really need this done so can y’all pls answer thanks
Answer:
Only active transport requires ATP
Explanation:
Passive transport is the movement of molecules across the cell membrane without the need for energy. These substances usually move from a high concentration to a low concentration.
Active transport relies on energy from ATP to move substances across the plasma membrane. This is usually required when moving substances against their concentration gradient.
Explain how fermentation is useful in the preservation of food products
Answer:
To preserve and flavor the products.
Explanation:
Fermentation is a microbiological process of transformation of carbohydrates into alcohols, acids, aldehydes, ketones, and gases. As the fermentation takes place, microorganisms, such as bacteria or yeast, are needed to convert carbohydrates into organic acids or alcohol, under anaerobic conditions.
What are the layers of the earth
Answer:
inner core,outer core,mantle,crust
CAN SOMEONE PLEASEEEE HELP ME WITH THIS SCIENCE QUESTION THANK YOU!! (Explain how you got the answer)
Answer:
Im thinking it is econimic
Explanation:
Economics is a social science concerned with the production, distribution, and consumption of goods and services.
3. You raise your hand in class to answer a question that the professor asked. Which
muscle type did you just use? Briefly explain your answer.
Answer:
you are using your shoulder muscle. The reason you are using this muscle is when you put your arm strait up there is no reason to use a bicep or tricep muscle.
Explanation:
# A friend has written to you informing you that
She be is planning to go on a
tour write > Itter
to his/her giving
Limther the name of some
و و 7
Answer:
Dear Olivia,
Hope you are fine and healthy. I get your letter this afternoon and I am excited to know that you are coming on the tour of my city after reading your letter.
I am very keen to know if it is a vacation trip or related to some work or business, please provide all details including itinerary as well. I know you love the basketball game and there is an upcoming tournament, you would really enjoy it.
There are so many tourist places in the city and gardens, you will be excited to go and visit these places. Please let me know how many days you will be here so I can schedule my dates accordingly.
Looking forward to seeing you.
Your Friend,
Armaan