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What is the basic building block of all living things?
Answer:
[tex] \huge \boxed{ \mathbb{ \bold{ \purple{ \: cell}}}}[/tex]Explanation:
All the living organisms on this Earth are made up of microscopic units called cells. It is basic structural unit for all the organisms. The cells are the building block of all the living organisms. Our body is composed of trillion of cells. They carry out the functional activities of our life. A cell can be defined as a basic , structural and functional unit of life capable of independent existence. The cell was first discovered by Robert Hooke in 1665 AD. As we know that all the living organisms are made up of cells. These cells are developed as a result of a division of pre-existing cells. All the cells are same in chemical composition and metabolic processes. The function of an organism as a whole is the outcome of combined activities and interactions of the constituent cells. The cell is known as the fundamental , structural and functional unit of life.
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A molecule that binds up excess hydrogen ions in a solution is called a(n) ________.
1. acid
2. isotope
3. base
4. donator
a base
isotopes have nothing do with binding hydrogen ion
acids donate hydrogen
donaters just donates♀️
A BASE is a molecule that binds up excess hydrogen ions in a solution.
WHAT IS A BASE?
According to the Bronsted-Lowry theory of acids and bases, a base is a substance that accepts hydrogen ions (H+) which was donated by an acid.For example, in the chemical reaction below:
HCl (aq) + NH3 (aq) → NH4+ (aq) + Cl- (aq)
NH3 (ammonia) is the base because it accepts the hydrogen ion (H+) donated by hydrochloric acid (HCl) to form ammonium (NH4+).Hence, in a solution, a base binds up any excess or released hydrogen ion.
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Which of the following observations best demonstrates waters special property of cohesion
Answer:
I think it is C
Explanation:
Because cohesion is when insects are able to stand on water and not go through. Cohesion is the attraction between molecules of the same substance
Why does the reduction of the dye DCPIP work best using the chloroplasts whose outer envelopes have been damaged during preparation?
Answer:
NADP is the cofactors in photosynthesis which loses electrons,becomes reduced(NADPH) in photosynthesis. It transfer electrons in reduced form(NADPH) into the stroma of the chloroplast. The H is splits into e- and H+
These electrons for the ETC chains, generates the PMF for pumping H+ as protrons into the thylakoid intramembranes.
Outer membrane covers the intramembrane space, between these two membranes layers. The protons in the intramembrane space generate the electrochemical gradient for the supply of the energy used by ATPase synthase for ATP synthesis from phosphorylation with ADP.
The chloroplast is made up of both the outer and inner membrane,separated by the intramembrane space. The walls of the intramembrane space is guided by the outer envelope.
Therefore with the outer envelope removed, the intramembrane is exposed,more protons(H+) are released, but can not be held in the outer envelope to form electrochemical gradients,beacause the intramembrane space is now permable.
Thus the rate of reduction of DCPIP is faster.The color changes to colorless increases when reduced , from blue color.
Explanation:
The reduction of the dye DCPIP (2,6-dichlorophenolindophenol) works best using chloroplasts whose outer envelopes have been damaged during preparation because it allows easier access for DCPIP to the electron transport chain (ETC) components.
The outer envelope of chloroplasts contains phospholipid bilayers that act as barriers, limiting the movement of molecules in and out of the chloroplasts.
When the outer envelopes are damaged, DCPIP can diffuse more freely into the chloroplasts and come into contact with the ETC components, particularly photosystem I.
DCPIP acts as an electron acceptor, and in the presence of light, it is reduced by electrons from photosystem I, resulting in its color change from blue to colorless.
The damaged outer envelopes facilitate the interaction between DCPIP and the ETC, leading to more efficient reduction.
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Advantage of using a resource person
Answer:
Using Resource People in Program Development
Base your selection on their knowledge of the topic and ability to successfully cover and communicate information to the audience. Proper preparation of the resource person – and your committee – can enhance achievement of intended educational goals.
According to the passage, what effect did Chicago’s Great Fire of 1871 have on Frank Lloyd Wright?
Answer:
On October 8, 1871, a fire broke out in a barn on the southwest side of Chicago, Illinois. For more than 24 hours, the fire burned through the heart of Chicago, killing 300 people and leaving one-third of the city's population homeless. The "Great Rebuilding" was the effort to construct a new, urban center.
Explanation:
Healing of a fractured bone with a poor alignment is called malunion. nonunion. disunion. delayed union.
Answer:
The correct answer is A.
Explanation:
If a broken or fractured bone is not healed properly, it is called a malunion. This can happen because of incorrect medical treatment or lack of medical treatment, misalligned bones when healing etc. So the correct answer is option A.
I hope this answer helps.
Science is based on
Answer:
[tex]\Large \boxed{\mathrm{facts}}[/tex]
Explanation:
Science is based on facts.
Science has testable explanations, proofs, theories, and predictions. All are based on facts.
Answer:
sceince is based on facts
Explanation:
The graph shows the history of human population growth.
Growth of Human Population over History
Populations in billions
3
th
10,000
8000
4000
6000
BCE
2000
Which statement best describes the growth of the human population?
O A. The population has stopped growing due to one or more limiting
factors.
O B. The population has reached Earth's carrying capacity.
O C. The population's growth rate is increasing exponentially
O D. The population's growth rate is slowing down after passing its
carrying capacity
Answer:
O C. The population's growth rate is increasing exponentially
Based on the information provided, the graph, and the timeline, the statement that best describes the growth of the human population is: The population's growth rate is increasing exponentially, as in Option C.
What is the population growth rate?This rapid increase in the human population over the past few centuries is often attributed to advances in technology, medicine, and agriculture. These advances have made it possible to sustain a larger population by increasing food production, improving sanitation, and reducing mortality rates. As a result, the human population has grown at an exponential rate, with the rate of growth increasing over time. However, it is important to note that the rate of growth may eventually slow down as the population approaches its limit, and there may be various limiting factors such as resource availability, climate change, or disease outbreaks that could affect population growth in the future.
Hence, the correct answer is: "The population's growth rate is increasing exponentially," which is in Option C.
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The Characteristics of Living Things
I drove my car to the gas station to put gas in my engine. The gas is what powers my car and makes it move. After
leaving the gas station, a ball rolled into the street and I mashed my brakes suddenly to avoid hitting it. Identify
which (if any) characteristics my car has that all living things have.
No
Answer:
Locomotion and Irritability
The_ theory explains how our universe became so structured and uniform.
Answer:
The cosmological principle makes assumptions that provide scientific guidelines to enable its study. Mr. Biggins believes that the universe has been and always will look and be structured the same throughout all time.
Explanation:
The cosmological principle makes assumptions that provide scientific guidelines to enable its study. Mr. Biggins believes that the universe has been and always will look and be structured the same throughout all time.
The lac operon consists of a coding region, which contains three genes that code for proteins needed to metabolize lactose, and a regulatory region, which regulates transcription of the coding region.
a. True
b. False
Answer:
True.
Explanation:
The lac operon consists of a coding region, which contains three genes that code for proteins needed to metabolize lactose, and a regulatory region, which regulates transcription of the coding region because The lac operon comprises of a coding region, that is made up of three genes . These genes code for proteins that is needed to metabolize lactose, and a regulatory region, which help to regulate transcription of the coding region.
The three enzymes are lacZ, lacY, and lacA . LacZ is responsible for encodinv an enzyme called β-galactosidase, which help to digest lactose and break it into two constituent sugars: glucose and galactose. lacY is a permease which move lactose into the cell.
Which of the following is NOT a rule when writing a hypothesis?
It is a prediction
It is an if/then statement
It must restate the question
It is testable
Answer:
It must restate the question.
Among the given choices "It must restate the question" is NOT a rule when writing a hypothesis.
A hypothesis is a predicted or proposed explanation for any scientific question or problem, it is based on prior knowledge or limited evidence. It is a research statement.
A research statement that is needed to be testable as is to be tested repeatedly. Hypothesis contains if-else statements except for simple predictions. A hypothesis is stated after obtaining the research question.If restates the hypothesis was formed earlier, it might change the meaning of the question of research, which can result in errors in the study. thus, it should not be restated. Therefore, other options are rules of writing a hypothesis.
Therefore, the option says - "It must restate the question" is NOT a rule when writing a hypothesis.
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Which describes something that occurs during translation?
O A DNA template is used to create an mRNA strand.
O AtRNA template is used to create a DNA strand.
O AtRNA template is used to create an mRNA strand.
O An mRNA template is used to create an amino acid chain.
Answer:
[tex]\huge\boxed{Option \ 4}[/tex]
Explanation:
In translation process, the messenger RNA (mRNA) template is used to create amino acid chain by which a protein is formed. Translation is the process of synthesis of proteins from amino acids which the help of mRNA.
The option that best describes something that occurs during translation is an mRNA template being used to create an amino acid chain.
Translation, also known as protein synthesis, is one of the steps in gene expression. It involves the translation of genetic codes in an mRNA molecule to their respective amino acids in the ribosome.
The first step in gene expression is the transcription of genetic information on DNA into codes in the form of an mRNA. The mRNA then undergoes some processing before the genetic codes are translated, with the help of the tRNA which carries the anticodons, in the ribosome.
The codes are not just translated to their respective amino acids but the latter are joined together by peptide bonds to form the primary structure of proteins.
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Proteins can buffer a drop in pH by their _____ side groups and can buffer an increase in pH by their _____ side groups.
Answer:NH2 side group and COOH side group.
Explanation:
Proteins can buffer a drop in pH by their NH2 side groups and can buffer an increase in pH by their COOH side groups.
What are Proteins?Large, intricate molecules known as proteins play a variety of vital functions in the body. They are crucial for the structure, operation, and control of the body's tissues and organs and carry out the majority of their job inside cells.
Many thousands of amino acids, which are smaller building blocks of proteins, are linked together in lengthy chains to form proteins. To create a protein, 20 distinct kinds of amino acids can be mixed. Each protein's precise function and distinctive 3-dimensional structure are determined by the order of the amino acids.
Combinations of three DNA building units (nucleotides), which are dictated by the order of genes, are used to code for amino acids.
Therefore, Proteins can buffer a drop in pH by their NH2 side groups and can buffer an increase in pH by their COOH side groups.
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What is not a trigger for juxtaglomerular granular cells to release renin?
The provided question is incomplete as it lack the group of choice required to answer, however, the correct options are as follows:
A) increased extracellular fluid water levels
B) decreased filtrate NaCl concentration
C) sympathetic stimulation
D) decreased stretch due to decreased blood pressure
Answer:
The correct answer is option A) increased extracellular fluid water levels
Explanation:
Juxtaglomerular granular cells are the group of cells present in the kidney that produce, store and release the enzyme known as the renin. These cells are present in the walls of the afferent arterioles mainly.
Renin is the enzyme release in order to release angiotensin I in order to increase the blood pressure. The release of the renin is depend on various triggers sense by juxtaglomerular granular cells such as decreased filtrate NaCl concentration , decreased stretch due to decreased blood pressure and sympathetic stimulation or other stimuli. However, increased extracellular fluid water levels is not responsible for the release of renin.
Thus, the correct answer is option A) increased extracellular fluid water levels
How to tell if a cat really has feelings for you or just to eat?
Answer:
if tge cat doesnot come to you when you dont give it food it means he loves food not u
Answer:
lets see
Explanation:
one the place a food near you and if the cat looks down the food with out looking at you then you understand he loves food
7. Increased
and
dries out the ground
leaving
water to move to the atmosphere fewer clouds and less
precipitation, which can lead to
Answer:
Increased evaporation and transpiration dries out the ground leaving less water to move to the atmosphere fewer clouds and less precipitation, which can lead to drought conditions.
In some areas evaporation and transpiration from plants can be so high that the amount of water available to move to the atmosphere is significantly reduced. This is usually the case in areas that are lacking in open water resources.
As there is less water moving to the atmosphere, there will be less water condensing into clouds and thus less rain. If this persists, it can lead to a drought.
A trainer has an explosive sport athlete client and has them perform explosive movements. Which of the following principles does this describe?
A. Individual differences
B. Progressive overload
C. SAID
D. GAS 94.
Answer: Option C.
SAID
Explanation:
The principle the trainer adopted is Specific adaptation imposed demand.
It describe specific adaptation imposed demand because In SAID principle, different sports posses its own unique demand and in order to improve skills base on a particular sports, human body adapts to the imposed demands by practicing the sports unique moves to asserts the sport demand.
The measurement indicated by the line across the center of the cell is best referred to as:_______.
a. Area
b. Volume
c. Diameter
d. Radius
Answer:
I'm guessing, but if the image is a circle, and the line touches both sides it's the diameter. If the line is only half of the circle then, it's a radius.
Explanation:
Volume is L x W x H (Length x Width x Height)
Area is L x W (Length x Width)
The measurement indicated by the line across the center of the cell is best referred to as Diameter (C).
What is the diameter?The diameter is a imaginary line across the center of the given circular structure such as a cell.
The diameter of a cell is a fundamental measurement to know its association with the environment.In conclusion, the measurement indicated by the line across the center of the cell is best referred to as Diameter.
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Select the best answer for the question.
3. All of the following about the spinal nerves are true except which one?
O A. The spinal nerves supply sensory areas of the body.
O B. The spinal nerves enter and exit the brain stem.
O C. The spinal nerves deliver signals to muscle cells in the body.
O D. The spinal nerves enter and exit the spinal cord.
All of the following about the spinal nerves are true except that the spinal nerves enter and exit the brain stem, which is in option B. The spinal nerves enter and exit from the spinal cord only.
What is the central nervous system?The central nervous system (CNS) is made up of the brain and the spinal cord, which are both considered to be the central regulatory parts of the body. The CNS contains numerous nerve fibers that are attached to various organs and regulate their functions, such as excitement, running, and so on.
The spinal cord has many nerves that associate with different organs, and these nerves are called spinal nerves, and such nerves of the brain are called cranial nerves. The sensory and motor nerves associated with the various organs carry information to this parts and send actions in response.
Hence, all of the following about the spinal nerves are true except that the spinal nerves enter and exit the brain stem, which is in option B.
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Which of the follow shows the factors that contribute to land degradation in the order in which they most often occur? I. Erosion II. Deforestation III. Desertification IV. Land overuse for agriculture
Answer:
Deforestation
it is because if there are trees present in our environment they hold the soil and prevent from erosion and degradation
Explanation:
Deforestation because trees hold the land degradation.
use the information you gathered to identify the minerals,then move the stickers to the minerals.
Answer:
1 = Bornite
2= Chalcopyrite
3= Pyrrhotite
4= Goethite
5= Hematite
6= Pyrite
Explanation:
Edge 2021
1 = Bornite, 2= Chalcopyrite, 3= Pyrrhotite, 4= Goethite, 5= Hematite and 6= Pyrite are the respective names of the minerals.
What are minerals?A mineral is an inorganic element or compound that occurs in nature and has a recognisable chemical composition, crystal structure, and physical characteristics. Quartz, feldspar, mica, amphibole, olivine, and calcite are examples of common minerals.
Applications for economic minerals include many aspects of building, industry, agriculture, and energy production. Energy minerals are used to provide power, fuel for transportation, heat homes and businesses, and to make polymers, among other things.
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A normal version of a certain chromosome contains the following structure: Genes X Y Z Centromere Genes A B C. In a cell you are studying, you find a chromosome containing the structure Genes C B A Centromere A B C. What is the mostly likely explanation for this result
Answer:
The formation of one isochromosome
Explanation:
In cytogenetics, an isochromosome is a structurally abnormal chromosome that renders two chromosome arms which are identical inverses of each other. An isochromosome is caused by simultaneous duplication and deletion of genetic information during DNA replication. The resulting isochromosome will contain two identical copies of either the long or short chromosome arms that are disposed as a mirror image.
If there is a loss of balance in biodiversity, describe at least 5 possible consequences for the sustainability of life on earth
Answer:
Loss of balance in biodiversity will have very dangerous impact on the life on earth. consequences for the sustainability of life on earth due to loss of balance in biodiversity are as follows:
Food security will be reduced due to the extinction of species at several food chain level.Increase in disease carrying animals as due to loss of balance in biodiversity, animals will adapt to fragmented habitats.Frequent changes in weather.Livelihood of humans will be disturbed as ecosystem will not remain healthy.Natural disasters will increase and lead to loss of humans and other wildlife lifes.Match each type of cell junction with its description.
Tight junctions
*prevent liquid from seeping between cells
Desmosomes
*act as rivets to hold adjacent cells together when epithelial tissue moves
Gap junctions
*allow movement of cytosol, ions, and small molecules between animal cells
Plasmodesmata
*openings through the cell walls of plant cells that allow adjacent cells to share materials
Answer:
Tight junctions - prevent liquid from seeping between cells
Desmosomes - act as rivets to hold adjacent cells together when epithelial tissue moves
Gap junctions - allow movement of cytosol, ions, and small molecules between animal cells
Plasmodesmata - openings through the cell walls of plant cells that allow adjacent cells to share materials
Explanation:
1) Tight junctions are one of the cell junctions found in animal cells. Tight junctions function to prevent the flow of liquid materials between cells.
2) Desmosomes are another type of cell junctions whose function is to form a connection between two adjacent cells. The structure formed by this connection confers strength upon the tissues involved.
3) Gap junctions are the most commonly found cell junctions found in animal cells that connects adjacent cells allowing the passage of cytosol, ions and other small molecules in them from one adjacent cell to another.
4) Plasmodesmata is a cell junction found in plant cells. They are small openings lying across the cell wall of plant cells whose function is to connect the cells and facilitate the movement of materials from one cell to another.
During germination time seeds need to obtain high-energy food through
A. Stored fats and oils
B. Nutrients found in the soil
C. Sunlight
D. Water found in the soil
Answer:
Stored fats and oils
Explanation:
Obtains its energy from the oil and starch in the seed itself. Those nutrients give it the initial boost to send out a root that absorbs water and send its shoot up through the soil.
Classify each action as belonging to genetics, genomics, or both. Genetics Genomics Both.
a. study individual gene
b. study interactions between many genes
c. study DNA
d. sequence genome of organisms
e. control gene expression
f. observe mutant effects across the genome
1. Genetics
2. Genomics
3. Both study
Answer:
a- 1
b- 2
c- 2
d- 2
e- 2
f- 2
Explanation:
Genetics and Genomics are two terms that are used commonly in molecular biology but mean entirely different things.
Genetics is the study of individual (single) genes and their role in genetic inheritance i.e. heredity while Genomics is the study of all the genetic composition of an individual (genome) and how they interact with one another and their environment.
Based on the explanation above,
- the study of individual gene is classified as GENETICS
- study interactions between many genes is classified as GENOMICS
- study of DNA, which contains all the genes of an individual is classified as GENOMICS
- sequencing the genome of organisms is classified as GENOMICS.
- control of gene expression is classified as GENOMICS because it involves expression of information in the genes, which is a branch of genomics called functional genomics
- observing mutant effects across the genome is classified as GENOMICS
Classify each action as belonging to genetics, genomics, or both.
a. Study individual gene - Genetics
b. Study interactions between many genes - Genomics
c. Study DNA - Both (primarily Genetics)
d. Sequence genome of organisms - Genomics
e. Control gene expression - Genetics
f. Observe mutant effects across the genome - Genomics
Therefore, the correct options for A, B, C, D, E and F are 1, 2, 3, 2, 1 and 2 respectively.
Individual genes are the main subject of genetics, which also looks at how they are transmitted among populations as well as their structure, function, and variations. It involves examining the genetic information and traits that are transferred from one generation to the next. When studying the relationships between multiple genes and their overall effects on an organism, genomics takes a macro approach.
Therefore, the correct options for A, B, C, D, E and F are 1, 2, 3, 2, 1 and 2 respectively.
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Select two items that biologists agree are necessary in order to consider an organism “alive.” For each, give an example of a nonliving object that otherwise fits the definition of “alive.”
Answer:
Cellular organization and metabolism are two items necessary to consider an organism alive.
Explanation:
There are certain characteristics that belong to living beings and that they all have in common. These are distinctive characteristics that do not include any non-living object. Among others, we can name the followings:
1) Precise cellular organization. The cellular theory states that every living being is conformed of basic units named cells and their products that result from the cellular activity. Although organisms vary in size and shape, all of them are formed by cells. A cell is the simplest part of the living matter which is capable of performing every necessary activity needed for life. Some of the simplest organisms, such as bacterias or some algae, are unicellular. This unique cell must be polyfunctional, as it has to perform many activities. On the other hand, many other organisms are highly complex pluricellular. All the processes of the entire organism depend on the correct and coordinated functioning of every constituting cell. The more complex the organism is, the more specialized are the cells, differentiating from each other, and acquiring certain specific functions. These are, for example, the epidermic cells, muscular cells, nervous cells, reproductive cells, among others.
2) Metabolism. In any living being there happen many essential chemical reactions needed for appropriate nutrition, growth, cellular repairing, energy conversion, among others. All of these chemical reactions in the organisms are known as metabolism. These cellular activities begin when the organism takes life, and continue through its whole life. When chemical reactions stop, the organisms might be considered to be dead. Every specific cell in the organisms take substances that chemically modify, in many different ways, to integrate new cellular components. Some of these nutrients are used in cellular respiration. During this process, part of the energy stored is taken by the cell for its own use. This energy is also needed for synthesis and other cellular activities. In most organisms, cellular respiration requires oxygen provided by the gas interchange. Cellular wastes, such as carbon dioxide and water must be eliminated from the organism. Every chemical reaction is regulated by specific enzymes.
In Part 3 of this field study, you determined percentages of land use around your home. Would you describe the area in your study as diverse? Support your answer with your data and submit your data table.
Answer:
Please see below
Explanation:
The supporting data has been organized in a table and attached as an image herein. As can be clearly seen from the data table, the zones under study are nothing alike. The home area is mostly for residential use and gives the greatest percentage for being used for housing purposes. However, the Mount Pinatubo area is mostly being for vegetation.