Answer:
They may ask how a single tiny cell becomes a tree or a dog, how the human mind works, or how the different forms of life in a forest interact. What makes up the biosphere?
Explanation:
Forensic Science Please Help!!
What are some of the ways that a document examiner might try to match a questioned document to a specific typewriter? What aspects might they look at?
Answer:
Some of the ways you could try to match a questioned document to a specific typewriter would be to match the handwriting, you could also look at different changes made in the handwriting.
Some of the ways you could try to identify a questioned document to a specific typewriter would be to match the handwriting, you could also look at different alterations made in the handwriting.
Why is forensics important?The criminal justice system cannot function without the contributions of forensic science. Forensic scientists collect evidence from crime scenes and other locations, assess that evidence, and then create objective conclusions based on their findings. These conclusions can either aid in the investigation and conviction of criminals or clear an innocent individual of any wrongdoing.
Studies of handwriting for forensic purposes are an essential component of the legal system. These examinations seek to ascertain whether or not handwritten documents can be traced to particular writers by making a comparison to known exemplars of that handwriting.
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What Structure can be found in both a virus and a cell?
Answer:
Nucliec Acid :)
Explanation:
Polysaccharides are
Many cells make and use an enzyme, called catalase, to facilitate the decomposition of hydrogen peroxide (H2O2). The products of the decomposition are hydrogen (H2) and oxygen (O2). What is the effect of catalase on the decomposition of hydrogen peroxide? A. It decreases the activation energy needed to start the reaction. B. It decreases the total energy released by the reaction. C. It increases the total energy absorbed by the reaction. D. It changes the ratio of the amounts of the two products.
Answer:
A. It decreases the activation energy needed to start the reaction
Explanation:
Organic catalyst which speed up the rate of organic chemical reaction is living cells are called enzymes.They have specific reaction site called active sites.This must be in prefect shape with the substrate for the organic chemical reaction to take place
When this occurs the minimum amount of energy of reaction to activate or stimulate the the atoms and molecules of the substrate to undergo chemical reaction is lowered.This energy of reaction is celled activation energy.
Catalase thought its active sites lowers the activation energy so that the molecules of H2O2 could break down to C02 and H2 faster,thereby reducing the time for theses product to form.The is the general roles of enzyme.To increase the rate of chemical reaction,by reducing the activation energy.
I need help with question in science I will send you the picture
Answer:
Send me the Pic please so I will help you out with it
How do nutrients move through an environment? What drives the movement of nutrients?
Answer:
The nutrient cycle is a system where energy and matter are transferred between living organisms and nonliving parts of the environment. This occurs as animals and plants consume nutrients found in the soil, and these nutrients are then released back into the environment via death and decomposition.
The nutrient cycle is a system that transfers energy and matter between living organisms and non-living elements of the environment.
How do nutrients move?As the concentration of nutrients around the root system decreases, nutrients from higher concentration areas diffuse - or move - toward low concentration areas and the roots. They only move a short distance, however. Potassium (K) and phosphorus (P) primarily move via diffusion.The nutrient cycle is a system that transfers energy and matter between living organisms and non-living elements of the environment. This occurs when animals and plants consume soil nutrients, which are then released back into the environment through death and decomposition.The movement of nutrients to the root surface in response to a concentration gradient is referred to as diffusion. When nutrients are found in higher concentrations in one area than in another, there is a net movement to the low-concentration area, resulting in equilibrium.To learn more about : Diffusion.
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A characteristic common to eukaryotic cells that is not found in prokaryotic cells is the
cell membrane
presence of DNA
use of ribosomes for protein synthesis
presence of mitochondria
Answer:
Presence of the Mitochondrion!!
Explanation:
~
A characteristic common to eukaryotic cells that are not found in prokaryotic cells is the presence of mitochondria. Thus, the correct option for this question is D.
What is a Prokaryotic cell?A prokaryotic cell may be defined as a type of cell which is present in prokaryotes. This type of cell typically lacks a well-defined nucleus and other membrane-bound cell organelles. Organisms like bacteria, archaea, etc. possess this type of cell.
All prokaryotes and eukaryotes have a cell membrane known as a Plasma membrane. Most prokaryotic organisms have a small amount of genetic material in the form of a single molecule known as circular DNA.
Protein synthesis is one of the essential functions of all cell types. Ribosomes are significantly found in every type of eukaryotic as well as prokaryotic organisms like bacteria.
Therefore, the presence of mitochondria is a characteristic that is only common to eukaryotic cells but is not found in prokaryotic cells.
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Atmospheric Layer Describe what happens to the temperature as altitude increases. Be sure to note specific altitudes where abrupt changes occur and how each layer is heated. Troposphere Stratosphere Mesosphere Thermosphere Exosphere Ionosphere
Answer:
Kindly Check explanation section.
Explanation:
The atmosphere has zones and each zones has it characteristics with respect to atmospheric conditions such as temperature, pressure and humidity.
So, the question only asked us to compare or show the temperature describe what happens to the temperature as altitude increases in each region of the atmosphere.
(1). Troposphere: the region known as troposphere in the atmosphere has a lower Temperature. The troposphere is a region in which the earth gets its radiation and re-radiates its electromagnetic radiation to give heat which later cools down.
(2). Stratosphere: what occurs in the region known as the stratosphere in the atmosphere is that there will be absorption of UV by the O3 layer which will in turn INCREASES THE TEMPERATURE.
(c). The Mesosphere: in this region of the atmosphere the temperature DECREASES.
(d). Thermosphere: there is surely an INCREASE IN TEMPERATURE in this region because of solar radiation.
(e). Exosphere: there is an INCREASE IN TEMPERATURE in this region too and the temperature increament is caused by ionization.
(f). Ionosphere: in this region, we have an INCREASE IN TEMPERATURE too be side of the solar radiation.
Match the part of the viral replication cycle with the order in which it occurs
Column A
Column B
1.
d
1 st
a. viral genome is replicated using host cell's machinery
2.
2nd
b. virus penetrates and inserts genome into cell
3rd
C virus attaches to cell surface
3. 4. 5.
4th
d. new viruses are assembled within host cell
5th
e. the cell ruptures and releases new viruses to infect new
cells
6.
6th
f. viral proteins are synthesized within host cell
Answer:
1. c. virus attaches to cell surface
2. b. virus penetrates and inserts genome into cell
3. f. viral proteins are synthesized within host cell
4. a. viral genome is replicated using host cell's machinery
5. d. new viruses are assembled within host cell
6. e. the cell ruptures and releases new viruses to infect new cells
Explanation:
First, the virus attaches to the cell. Then it penetrates the cell membrane and inserts its genome inside the cell. The virus relies on the cell machinery to synthesize its proteins, and also to replicate its genome.
With these components being synthesized and replicated, new viral particles are assembled inside the host cell. Eventually, the cell ruptures, and the newly assembled viruses are released and able to attach to new cells to repeat the cycle
which of the following characteristics would be most accurate in hierarchically classifying a newly discovered organism?
habits
behavior
generic material
reproductive strategies
____________is located in the mitochondrial membrane.
a. The citric acid cycle
b. Glycolysis The electron transport chain
c. The electron transport chain.
d. Pyruvic acid
Answer:c
Explanation: I did the same quiz and the answer is c
A student states that exercise will affect the number of times a person can squeeze a clothespin in a certain amount of time. An experiment is carried out to test this hypothesis. One group of ten students sits quietly before squeezing a clothespin as many times as possible during a one-minute interval. A second group of ten students does 25 jumping jacks before squeezing a clothespin as many times as possible during a one-minute interval. What is the independent variable?
Answer:
EXERCISE
Explanation:
In an experiment, the independent variable is the variable that the experimenter changes or manipulates in order to bring about a measurable outcome.
In this case, an experiment is carried out to test the hypothesis that "exercise will affect the number of times a person can squeeze a clothespin in a certain amount of time". The experiment contained two groups (one group sits quietly before squeezing a clothespin as many times as possible and the other does 25 JUMPING JACKS before squeezing a clothespin as many times as possible).
The independent variable is the EXERCISE (jumping jacks) that was changed for each group in the experiment.
How long after the Big Bang before stars could form
A. 5billion years
B. 3 millions years
C. Stars formed immediately after the Big Bang
D. 3 billion years
Answer:
c.
Explanation:
The flow of energy through living systems can be modelers as food chains , food webs , or energy pirámide. The energy organisms need to live and grow first enters the ecosystem when which of the following occurs?
Which is the role of the electron transport chain in the process of photosynthesis? A. Cycling electrons between photosystem and photosystem ll B. Adding energy to the electrons that enter photosynthesis C.Carrying electrons from photsystem I1, to photosystem to NADP O D. Removing electrons from the chloroplasts
Answer:
c.
Explanation:
Because youcaring electrons from photosystem II, to photosystem I, to NADP+
I took this test about it hope that helps :D
The role of the electron transport chain in the process of photosynthesis will be carrying electrons from photosystem 1, to photosystem to NADP. The correct option is C.
What is electron transport chain?An electron transport chain is a collection of protein complexes and certain other compounds that donate electrons from electron donors to electron acceptors via redox reactions and couple this electron transfer with the transfer of protons across a membrane.
Photosystems I and II are protein complexes found in the thylakoid membrane.
Their function is to capture high energy electrons from chlorophyll and pass them on to a series of electron carriers before splitting water to form oxygen and hydrogen ions and producing NADPH.
Electron transport contributes to the formation of a proton gradient, which drives ATP production and also stores energy in the reduced coenzyme NADPH.
This energy is used to power the Calvin Cycle, which produces sugar and other carbohydrates.
Thus, the correct option is C.
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___ is one of the two types of transport tissue in vascular plants. It transports water from the roots of a plant to the stems and leaves.
A. Xylem
B. Stomata
C. Phloem
D. Chloroplast
Answer:
Xylem
Explanation:
Xylem is vascular tissue that transports water and dissolved minerals from roots to stems and leaves. This type of tissue consists of dead cells that lack end walls between adjacent cells.
What has happened to our system of classification as technology has become more
advanced?
Answer:
Technological advances have had a huge impact on biological classification systems overtime, providing new information on biological connections between species past and present.
Explanation:
Match the eukaryotic kingdom vith the appropriate description plants all multicellular: make their own food mostly unicellular, some make thhere ovn food. others consume their food protists unsgi mosty multiceliular, eat dead or decaying Organisms
Question:
Match the eukaryotic kingdom with the appropriate description
all multicellular, make their own food all multicellular, eat other organismsmostly unicellular, some make there own food. others consume their food mostly multicellular, eat dead or decaying organismsFungi
Plants
Animal
Protists
Answer:
all multicellular, make their own food - plantsall multicellular, eat other organisms - animalsmostly unicellular, some make there own food. others consume their food - protistsmostly multicellular, eat dead or decaying organisms - fungiExplanation:
All plants and animals are multicellular organisms. Plants are autotrophs, meaning they can make their own food (usually by photosynthesis). In contrast, animals rely on other organisms as a food source (are heterotrophs)
Fungi and protists are more variable. Protists are mostly small unicellular organisms, some perform photosynthesis to make their own food, others eat other organisms.
Fungi usually consume dead or decaying matter (decomposers)
Most of the life of any cell is spent in a period of growth called ____.a.interphase.telophase.prophase.anaphase
What does it take to become a king?
Answer:
Alternatively, an individual may become monarch by right of conquest, acclamation or a combination of means. A monarch usually reigns for life or until abdication. If a young child is crowned the monarch, a regent is often appointed to govern until the monarch reaches the requisite adult age to rule.
Explanation:
pls give brainliest i need 1 more to be an expert
Molecules cannot react chemically unless they are......
a) polar b)solvents c)active d)in solution
*PLEASE ANSWER WITH EXPLANATION.*
Answer:
c) active
Explanation:
When in an atom the outermost shell is not full (eg. 2,8,3 ; here in the last shell it is not filled completely and needs 5 more electrons to complete it ) then the atom becomes active and molecules doesn't react unless and until an atom is active .
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Question 2/7
What level of ecological organization is this?
A. Individual
B. Population
C. Community
D. Ecosystem
help me please help me please
it is c because everyone is gathering together in one place
You just went to McDonald's and purchased a Big Mac what type of macromolecule is represented in each of the following?
Answer:
There are four major classes of biological macromolecules (carbohydrates, lipids, proteins, and nucleic acids), and each is an important component of the cell and performs a wide array of functions. Combined, these molecules make up the majority of a cell's mass.
Community dynamics are changes in community structure and composition
over time
within 1 year
O within 25 years
O within 1 day
Which study would have produced the least trustworthy results?
Answer:
A
Explanation:
Which types of friction are observed in this avalanche?
Answer:
kinetic is one of them.
Cellulose helps plánts:
grow more quickly
stand up straight
take in and release gas
make food
Answer:
stand up straightExplanation:
Cellulose is a tough substance that helps strengthen the sctructure of a plant.
what are the limitations of the respiratory system?
Answer:
Having gills, or the ability of gills.
Explanation:
Our lungs can't filter out water and use the oxygen in the water, sadly.
And, we can't hold our breath for that long, compared to other mammals (the only way that we can hold our breath for a long time is if we breathe in pure oxygen).
Where does the most absorption of nutrients take place?
1. liver
2. small intestine
3. large intestine
4. stomach
Answer:
It's intestine but partially small intestine
Which type of heat transfer causes a person sitting by the fire to feel warm?
a, absorption
b, conduction
c, convection
d, radiation