Answer:
Electron Microscope
Explanation:
In contrast to light microscopes, electron microscopes use a beam of electrons instead of a beam of light. Not only does this allow for higher magnification and, thus, more detail, it also provides higher resolving power. The method used to prepare the specimen for viewing with an electron microscope kills the specimen. Electrons have short wavelengths (shorter than photons) that move best in a vacuum, so living cells cannot be viewed with an electron microscope.
Answer:
Electron microscope
Explanation:
" Living things cannot be viewed with an electron microscope because the process to prepare them for viewing would kill them! " in the paragraph it says this , and i just took the unit 1 test . Its 100% electron microscope .
What stages of the water cycle where water moves downward from the force of gravity
Answer:
Precipitation, Surface Runoff and Infiltration process
Explanation:
There different stages of the water cycle where the water comes back on earth due to the gravitational force are as follows-
Rainfall/Precipitation- The water vapour in the cloud undergoes the process of condensation, it leads to the occurrence of rainfall, where the water comes freely over the ground surface from a certain height.
Surface Runoff- These refer to the flow of water rapidly along a steep slope, under the influence of gravity that eventually adds to the streams, lakes and rivers.
Infiltration process- This is the process where the water from the earth's surface percolates through the rocks and flows downward and eventually mixes with the groundwater.
Answer:
Precipitation, Surface Runoff and Infiltration process
Explanation:
Which level is frequently used to analyze and calculate biodiversity?
Answer:
ecosystem
Explanation:
The level, which is frequently used to analyze and calculate biodiversity will be genetic, species, community, as well as ecosystem.
What is biodiversity?The genetic, species, community, as well as ecosystem levels, are only a few of the various ways that biodiversity could be quantified. Assessing an ecosystem's species richness, or the total count of unique species inside a small community is one technique to gauge biodiversity.
What is ecosystem's ?All the organisms as well as the physical setting they interact with make up an ecosystem.
The level, which is frequently used to analyze and calculate biodiversity will be genetic, species, community, as well as ecosystem.
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I need this by today pls help
Answer:
the first questions answer is A your investegation failed because the data didnt support the hypothesis
the second question is C i believe.
Which of the following is an example of a biochemical adaptation?
a. camouflage
b. migration
c. being immune to scorpion stings
d. razor sharp teeth
Answer:
c.
Explanation:
over time you adapt to be immune to scorpio stings
Being immune to scorpio stings is an example of a biochemical adaptation. Thus c is correct option.
What is biological adaptation?
A biological adaptation is defined as physical change in an organism that allow the organism to survive in their environment. Adaptation can be seen in three form i.e structural behavioral and physiological.
Adoption has been described from the time ancient Greek philosophers known as Aristotle.
In the process of adaptation the source of all genetic variation there would be no genetic changes occur.
When there is increase in mutation genetic change occurs in a population.
Adaptation is generally relates to biological fitness which is responsible for rate of evolution due to change in allele frequencies.
Therefore, being immune to scorpio stings is an example of a biochemical adaptation. Thus, c is correct option.
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Which of the following is the definition of a lake?
A. a principal land mass of the Earth given one of seven names
B.a small land mass totally surrounded by water
C. a land mass surrounded on three sides by water
D. a small body of water surrounded by land
E. large bodies of water that are interconnected and almost totally surround the Earth
Carbon dioxide dissolved in water is what gives soda it's fizz. What is the solvent in this solution?
carbon dioxide
water
carbon
there is no solvent because carbon dioxide is a gas
100pts and brainleast
Answer:
The correct answer would be - Water.
Explanation:
Soda is a solution that has water, sugar, flavorings, carbon dioxide as its components. Carbon dioxide is dissolved under pressure in the water with other solutes like sugar and flavorings. Carbon dioxide is a gas however it is still is a solute.
Water is the component of soda that is solvent as all other components dissolve in it. Water is solvent in this solution of water, sugar, flavorings, carbon dioxide as its components. Carbon dioxide.
Thus, the correct answer is - water.
Answer: Hi Uncle
Explanation:
A student is trying to find out if people prefer vanilla ice cream or chocolate ice cream. She buys several
containers of regular chocolate ice cream and low fat vanilla ice cream. She hands out small sample of each
flavor to the testing group she has gathered and asks them 5 minutes later which one was their favorite. Of the
100 people she tested, 80 said they prefer the chocolate ice cream.
This situation is an example of
A)
personal bias
B)
experimental bias
C)
cultural bias
D)
a controlled experiment
Answer:
B. Experimental Bias because she she bought chocolate, but then she bought lowfat vanilla ice cream unknowingly. Therefore, the people liked more of the chocolate ice cream.
Hope this helped :3
Explanation:
best describes what occurs when technology advances?
models stay the same
models improve
models are oversimplified
models reflect all scientific knowledge
What does the process of cellular respiration provide for cells?
Answer:
Energy
Explanation:
Answer:
It provides energy.
Explanation:
What is true about a Producer's role in the ecosystem?
A. Producers create energy for the other trophic levels to use.
B. Producers consume other trophic levels to pass their energy up the food chain.
C. Producers capture the energy from the sun for all other trophic levels to use.
D. Producers recycle nutrients back into the food chain
Answer:
D
Explanation:
Producers, also known as autotrophs, make their own food. They make up the first level of every food chain. Autotrophs are usually plants or one-celled organisms. Nearly all autotrophs use a process called photosynthesis to create “food” (a nutrient called glucose) from sunlight, carbon dioxide, and water
Answer:
D
Explanation:
Which of the following processes is LEAST directly influenced by adrenergic drugs?
a. peristalsis
b. secretion of digestive enzymes
c. enzymatic breakdown of food molecules
d. nutrient delivery to muscles and organs
Answer:
c. enzymatic breakdown of food molecules
Explanation:
For adrenergic drugs active the nervous system i.e. sympathetic also it directly related to digestive enzymes, rise the blood glucose that results in blood vessels dilation that aids delivery of nutrient and tissues.
But it does not directly affect the digestive enzymes activity after considering the secreted
Therefore in the given case, the option C is correct
What is the problem about water being wasted what are some ways you can help solve the problem how does that harm people on the planet what would you need ?
Answer:
Explanation:
to clean up
How does heat energy affect condensation?
Answer:
Condensation happens when molecules in a gas cool down as the molecules lose heat, they lose energy and slow down. They move closer to other gas molecules and finally the molecules collect together to form a liquid.
Explanation:
Answer:
the practices move faster because of the heat energy
The properties of water all directly relate to
A. Iconic Bonds
B. Covalent Bonds
C. Hydrogen Bonds
Answer:
hydrogen bonds
Explanation:
because they are polar, they stick to other things and are hard to break so cohesion and adhesion and specific heat are caused by these as well as the other properties
Small steps toward completion of the final project are called _________. benchmarks bunny hops driving questions reflections
Answer:
Benchmarks
Explanation:
A benchmark is simply an operation or a test to check the performance of something (in this case, a project) to evaluate if it is ready to be used.
Benchmarks are important because they are needed to see if a project is ready and set to be launched.
How many blood cells do you have if you pop a artery
Answer:
Too many
Explanation:
Human blood type is an example of which two types of genetics?
A. Multiple alleles and Polygeic inheritance.
B. Incomplete dominance and Polygenic inheritance.
C. Codominance and Multiple alleles.
D. Codominance and Incomplete dominance.
Answer:
The correct answer is option C. "Codominance and Multiple alleles".
Explanation:
Human blood type is a concept developed to understand how blood transfusion can be successfully performed, and is based on the presence and absence of antibodies and antigens in the surface of the red blood cells. Human blood type is an example of genetics codominance and multiple alleles. It is an example of codominance because some people express both allele A and allele B in what is known as blood type AB; and it is an example of multiple alleles since there are three alleles: type A, type B and type O.
The distribution of blood on basis of antibodies and antigenic heritage is called blood type. The main groups of blood types are A, B, AB, and O.
The correct answer is:
Option C. Co-dominance and Multiple alleles.
This can be explained by:
Among the presence of two alleles, neither of them can suppress the presence of another allele that is, both of the alleles will be expressed simultaneously this is called Co-dominance.In human blood type when the allele for A and B is present then, they will be expressed concurrently and the blood group will be of AB type.The ABO blood kind in humans is an example of multiple alleles. Human genes for blood type exist as [tex]\text I^{\text{A}}[/tex] , [tex]\text I^{\text{B}}[/tex] and [tex]\text I^{\text{O}[/tex]. Only two of the three genes is expressed in the human cells
Therefore, Human blood type is an example of Co-dominance and Multiple alleles.
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what is the purpose of having distilled water as one of your test substances?
Distilled water does not have any cellular or mineral contamination. It is used in experiments for accurate results.
What is distilled water?It is a type of water that is completely purified of any kind of impurities. It does not have any minerals, salts, or organic materials.
Distilled water is the liquefied stream. When the water is boiling, it turns into a stream. This is collected and the steam is turned back to liquid. The steam doesn't carry an impurity of water with it and so distilled water formed from steam is also devoid of any impurities.
Distilled water is safe to drink but it will not taste anything like regular water. The water in our homes is supplied with minerals. These minerals are required for various processes in our body. Distilled water doesn't have any such minerals. Hence it's safe to drink but it's not beneficial.
Therefore, distilled water is used in experiments as there is no chance of contamination or reaction with this. This is used as a control against the test substances.
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Which revision changes the dependent clause into an independent clause?
The given question is incomplete. However, the complete question is given below:
Read the dependent clause.
after the conversation with her publisher, when she decided to write an autobiography
Which revision changes the dependent clause into an independent clause?
After the conversation with her publisher, because she decided to write an autobiography.
Since the conversation with her publisher, when she decided to write an autobiography.
After having the conversation with her publisher, when she decided to write an autobiography.
After the conversation with her publisher, she decided to write an autobiography.
Answer:
The correct answer is - After the conversation with her publisher, she decided to write an autobiography.
Explanation:
The revision that alters the dependent clause (incomplete thought) into an independent clause (a complete thought) is the following one:
"After the conversation with her publisher, she decided to write an autobiography."
The reason behind this is that an independent clause is a clause that expresses a complete thought and no need for other clauses to be associated.
The other options (a and b) are grammatically incorrect when presented as independent clauses, whereas D is completely okay.
Answer:
D - After the conversation with her publisher, she decided to write an autobiography.
Who first identified DNA? Rosalind Franklin Erwin Chargaff Friedrich Miescher James Watson
Answer:
Friedrich Miescher
Explanation:
In 1869, Friedrich Miescher isolated "nuclein," DNA with associated proteins, from cell nuclei. He was the first to identify DNA as a distinct molecule.
Friedrich Miescher was the first to identify DNA. Details about DNA can be found below.
What is DNA?DNA also called deoxyribonucleic acid is the part of a living being that carries or stores genetic information.
Others are of the opinion that American biologist James Watson and English physicist Francis Crick discovered DNA in the 1950s.
However, this is untrue as DNA was first identified in the late 1860s by a Swiss chemist names Friedrich Miescher.
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An mRNA macromolecule transcribes genetic code from a DNA macromolecule in a cell's nucleus and carries the
code into the cytoplasm to synthesize a protein.
Which of the following statements is true about the nucleotides in the mRNA macromolecule and the DNA
macromolecule?
The number of uracil bases in the mRNA is the same as the number of cytosine bases on the strand of DNA that it
transcribed
The number of uracil bases in the mRNA is the same as the number of thymine bases on the strand of DNA that it
transcribed
The number of uracil bases in the mRNA is the same as the number of adenine bases on the strand of DNA that it
transcribed.
The number of uracil bases in the mRNA is the same as the number of guanine bases on the strand of DNA that it
transcribed
Answer:
The answer is B i believe
Explanation:
Edge2020
What is the purpose of having ampicillin in the plate?
Answer:
Ampicillin in a plate do as to help in maintaining ampicillin resistance plasmid in the growing medium
Explanation:
Ampicillin is an antibiotics that help to kill E.coli bacteria .
While growing bacteria in a plate or growing medium, it is important to add ampicillin to the plate so to maintain ampicillin resistance plasmid.
The absence of ampilicin, the bacteria will lose their resistance after they might have gone through some cell divisions and any bacteria that doesn't have resistance plasmid will be more vigorous than those that have and will outcompete them
The suffix that can indicate a change in cell structure is ____________________.
Answer:
Hope I'm not too late, the answer is plasia.
Agent that kills bacterial upon exposure:_____.
Answer: The answer would be disinfectants
Explanation:
Answer:
Bacteriocidal.
4. Using a complete sentence, state what would most likely happen to the production of oxygen by duckweed plants if the intensity and duration of exposure to light were increased.
Answer:
See the answer below
Explanation:
If the intensity and duration of exposure to light are increased for a duckweed plant, the rate of photosynthesis would increase and this would lead to an increase in the amount of oxygen produced.
From the equation of photosynthesis:
[tex]6CO_2 + 6H_2O + light --> C_6H_1_2O_6 + 6O_2[/tex]
the more the rate of photosynthesis, the more the amount of oxygen produced. Also, an increase in the intensity of light generally increases the rate of photosynthesis (and oxygen production) provided that other reactants can catch up. The rate of photosynthesis would become limited by the reactant that is available in the lowest quantity.
Which of the following describes the fluid mosaic model?
1. a phospholipid bilayer with various molecules embedded within and floating between the layers
2. all the liquid and solid components within a cell 's interior, excluding the nucleus
3. an explanation of how proteins embedded within the plasma membrane aid in cell functioning
4. the gel-like extracellular mix of proteins, polysaccharides, and other substances within tissues
Answer:
1. a phospholipid bilayer with various molecules embedded within and floating between the layers
Explanation:
The fluid mosaic model is best described as a phospholipid bilayer with various molecules embedded within and floating between the layers.
This is because this model talks about a phospholipid layer having protein and other molecules in it which aids in it being fluid. The fluid characteristic is what encourages floating between the layers.
What is missing from the x-axis?
1.title
2.units of measurement
3.data points
Answer:
first one: yeast fermentation over time
second one: units of measurement
third one: y-axis title & units
Explanation:
In skeletal muscle cells, calcium ions bind to the _____ molecule.
Answer:
Explanation:The arrangement of myofilaments
Answer:
In skeletal muscle cells, calcium ions bind to the troponin molecule.
Explanation:
hope it help ^_^
Which of the following molecules is solid at room temperature? Both saturated and unsaturated fats Cholesterol Saturated fats Unsaturated fats
Answer:
Both saturated and unsaturated
Explanation:
Hope this helps
The molecule that is solid at room temperature is the saturated fats.
Fatty acids or lipids are organic compounds that are poorly soluble in water but miscible in organic solvents.
The two major types of fatty acids are
Saturated fatty acid and Unsaturated fatty acid.Saturated fatty acids contains no double bond in their carbon chains. This is the main reason why they are solids at room temperature.
The sources of saturated fatty acids include:
Animal oilCoconut oilUnsaturated fatty acids contains double bonds, therefore are liquids at room temperature.
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Adam tested how music affects plant growth.
What is the dependent variable in the experiment?
A) type of bush
B) music ***
C) plant growth
D) soil
