Answer: The factor of safety in a plumbing system and determination of the upper limit of service for a 3-inch soil stack. 146. Establishment of a factor of safety.
Explanation:
The manipulated variable in the investigation is the diameter of the rubber tubing to determine its impact on siphoning time.
In the investigation exploring the impact of rubber tubing diameter on the time required to siphon water from a container, the manipulated variable is the diameter of the tubing. This variable is intentionally altered by the researcher to assess its influence on the siphoning process. By testing various tubing diameters, the researchers aim to observe any patterns or trends regarding the time it takes for water to be siphoned out.
This investigation seeks to determine if there is a correlation between tubing diameter and siphoning time. Controlling other factors, such as the volume of water, height difference, and tubing length, allows for a focused examination of the specific impact of tubing diameter on the efficiency of the siphoning process.
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The complete question is:
An investigation was done to see if the diameter of rubber tubing affects the time to siphon water out of a container. What would the manipulated variable be?
What type of transport requires energy to carry a nutrient from outside the cell, through the cell membrane, and into the cell?.
Active transport requires energy to carry a nutrient from outside the cell, through the cell membrane, and into the cell.
What are passive and active modes of transportation?In contrast to passive transport, which does not require energy for the movement of molecules, active transport does. While in passive transport, molecules travel along the concentration gradient, active transport involves molecules moving against the gradient.
Active transport moving against the concentration from lower concentrations to higher concentrations. Active transport mechanism expands energy.
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3. As part of a laboratory experiment, a thin slice
of peeled raw potato weighing 10 grams is
placed in an oven at 80°C. After 5 hours, the
potato sample is removed from the oven and
weighed again. The purpose of this experiment
might be to
(1) test for the presence of starch in living
tissues
(2) isolate cells in various stages of cell division
(3) determine the water content of potato
tissue
(4) study the rate of photosynthesis in potatoes
The purpose of the experiment might be to determine the water content of the potato tissue.
How is the water content of tissues determined?The water content of substances can be determined in the laboratory by heating the substance to a constant weight.
First, one must ensure that the substance is not destroyed by heat. The initial weight of the substance is recorded. The substance is then heated and reweighed after some time.
The weight is recorded again and the substance is returned to the oven. This process is repeated until a constant weight is achieved.
In order to determine the water content, the final weight of the substance is then deducted from the initial weight.
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Epinephrine inhibits salivary gland activity and muscle cell contraction in the airways, yet stimulates glycogen release in muscle cells and heart muscle cell contraction. How could one hormone have opposing effects on different organs?.
Answer:
Cells in the different tissues would have epinephrine receptors coupled to different signaling pathways.
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The unit of radiation absorbed energy or dose, is used for biology material only.
true or false
It is True, the unit of radiation absorbed energy or dose, is used for biology material only.
What is Absorbed Dose?The average dosage that is absorbed over an organ or tissue is commonly used to determine absorbed dose. This is obviously oversimplifying the true scenario. When an organ or person is exposed to radiation, the dosage is typically not homogenous throughout the volume of the organ.
The idea that the harm will occur whether the organ is exposed to radiation consistently or unevenly is a simplification that is adopted. This is certainly not true in severe situations, but if the nonuniformity is around 50% or less throughout the organ or person of interest, the mean organ dosage definitely may be employed successfully.
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Which step in an experimental investigation is not included in a comparative
investigation?
OA. Making observations
B. Collecting data
OC. Asking questions
OD. Forming a hypothesis
The step in an experimental investigation that is not included in a comparative investigation is forming a hypothesis (option D).
What is a comparative investigation?A comparative investigation is one of the three types of an experimental investigation, which involves the collection of data on a variable under conditions for the purpose of comparison.
A scientific investigation is a process of finding the answer to a question using various research methods.
Unlike the experimental and descriptive investigations, the comparative investigation does not require a hypothesis to be constructed because one is not testing for cause and effect.
In a comparative investigation, the relationship between two variables are usually compared.
Example of a comparative investigation is measuring the amount of runoff that two streams produce and comparing both measurements.
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A protein on the cell surface in the small intestine breaks the peptide bonds found in dietary proteins to release amino acids. this membrane protein is an example of a (an) ______.
A protein on the cell surface in the small intestine breaks the peptide bonds found in dietary proteins to release amino acids and this membrane protein is an example of an Enzyme.
The role of ProteinsProteins, also known as enzymes aid in accelerating our bodies’ chemical reactions, or metabolism. Some types of compounds are created, while other kinds are broken down.
Enzymes are a part of all living things. Enzymes are created by our bodies spontaneously.
Which kind of protein allows substances to enter and leave the cell?Proteins in membranes allows substances to enter and leave the cell.
Based on how they interact with the membrane, these proteins are split into two broad categories. The lipid bilayer itself contains integral membrane proteins.
What do proteins in membranes do?Membrane proteins mediate actions that are essential for biological cells to thrive.
Receptors facilitate communication between the cell and its surroundings, membrane-embedded enzymes catalyze chemical reactions, and transporters that are embedded in membranes carry ions and bigger solutes across membranes.
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Located in front of the occipital lobe, the _________ lobe contains the primary somatosensory cortex. a. frontal b. parietal c. anterior d. temporal please select the best answer from the choices provided a b c d
Answer:
b. parietal
Explanation:
Located in front of the occipital lobe, the b. parietal lobe contains the primary somatosensory cortex.
The parietal lobe, located in front of the occipital lobe, contains the primary somatosensory cortex, which is responsible for processing sensory information related to touch, pressure, temperature, and pain from different parts of the body.
The primary somatosensory cortex is indeed located in the parietal lobe, but it is specifically situated just behind the central sulcus (also known as the central fissure) in the postcentral gyrus of the parietal lobe. This cortex is responsible for processing sensory information from different parts of the body, allowing us to perceive sensations like touch, pressure, temperature, and pain.
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People do not use water to adulterate oil, while water is commonly used to adulterate milk why
Oil is hydrophobic by nature, but milk is an emulsion of water and minute fractions of many other substances, including lactose, micro lipids, and fats.
Any liquid that wants to combine with another one needs to have roughly equal amounts of attractive forces acting on its molecules. The attractive forces in water molecules are extremely strong due to the existence of polarity in the molecules.When oil and water are combined, the layers separate because of the long, neutral aliphatic chains in the structure of oils. As a result, there will be less attraction between the molecules of oil and water.Water-in-Oil vs. Oil-in-WaterEmulsions can be either water-in-oil or oil-in-water. Technically, to create water-in-oil emulsions as opposed to oil-in-water emulsions, one phase (referred to as the dispersed phase) is blended with the other (the continuous phase). To put it another way, one liquid acts as a kind of base into which another liquid is added. Oil is the dispersed phase that is spread into the continuous phase, water, when an emulsion is "oil-in-water." Milk is an illustration of an oil-in-water emulsion.A water-in-oil emulsion reverses the roles. E.g. butter. The type of emulsifiers used in milk retain all fats and lipids dispersed as nanoparticles in the aqueous medium, making milk easily miscible with water.Hence, water can be used to adulterate milk but not oil.
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What are the two things that muscle tissue can do?
Answer: Support the weight of your body and help you move.
Explanation:
Answer:
move, be still
Explanation:
not sure if your looking for something more in depth but this is the basics
define the term biosphere
Answer:
the regions of the surface, atmosphere, and hydrosphere of the earth (or analogous parts of other planets) occupied by living organisms.
Explanation:
also known as the ecosphere
This table shows the codons found in messenger RNA. Using this information, what sequence of nucleotides in the template strand of DNA could code for the polypeptide sequence Val-Asp-Ser?
The template strand of DNA has the nucleotides CAA-CTA-TCG in order.
The correct option is B.
What are codons?Three DNA or RNA nucleotides make form a codon. These codons are constructed to code for a procedure such as protein synthesis or the creation of stop signal codons. For various bodily processes, different amino acids are required. The Ala, Gly, Pro, Thr, and Val codons are four.
What is the function of codons?Any of the 64 different DNA triplet sequences that either encode information for the creation of a particular amino acid or act as a stop signal to end translation (protein synthesis). You can code for more information the more bases there are per codon. Since there are only 22 distinct amino acids, we require at least 3 bases for each codon.
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The complete question is -
This table shows the codons found in messenger RNA. Using this information, what sequence of nucleotides in the template strand of DNA could code for the polypeptide sequence Val-Asp-Ser?
A- GUU-GAU-AGC
B- CAA-CTA-TCG
C- GTT-GAT-AGC
D- CAA-CUA-UCG
You are doing a study on the enzymatic effects of lysosomes and want to follow the whole process from the formation of the enzymes to their use in the lysosome. In what location of the cell would you begin this observation?.
You are doing a study on the enzymatic effects of lysosomes and want to follow the whole process from the formation of the enzymes to their use in the lysosome. The endoplasmic reticulum (ER) is the place where this observation will begin.
As we want to begin with the process of formation of enzymes, hence Endoplasmic reticulum (ER) will be the place to begin. This is because the endoplasmic reticulum (ER) is the place in the body that plays a central role in the synthesis of proteins.
The ribosomes are attached to the rough endoplasmic reticulum which is responsible for the translation process of mRNA that results in protein formation. The endoplasmic reticulum plays a central role in the formation of proteins.
Hence, to begin studying the formation of enzymes, such as lysosomes, we will begin with the endoplasmic reticulum (ER).
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The area of the brain that processes visual, auditory, and touch stimuli and keeps us in a state of mental alertness is the?
When using dialysis bags to study osmosis in this lab whether or osmosis occurred is determined by measuring the.
Osmosis can be measured by osmotic strength, concentration or pressure.
What element impacts osmosis within aWhat cell?Concentration gradient: The concentration gradient affects the rate of osmosis. The faster osmosis takes place in a solvent, the lower the solute concentration in that solvent must be. Darkness and light are other osmosis-related elements; the more light there is, the more quickly osmosis occurs.
Osmosisisis is determined by concentration of the solute . Water diffuses into the area of higher concentrations from the area of lower concentrations.
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What is the main difference between organic substances and inorganic substances
Answer:
organic compounds always have a carbon atom while most of the inorganic compounds do not contain the carbon atom in them.
Explanation:
what are the 4 steps of binary fission
please look at the pic
Answer:
replication of dna
growth of cell
segregation of DNA
splitting of cells.
Explanation:
you have the parent cell that duplicates dna and then the cytoplasm divides it into two daughter cells.
The rna transcript being produced by the rna polymerase is complementary to the template strand of the dna. True or false?.
True, the RNA transcript being produced by the RNA polymerase is complementary to the template strand of the DNA.
RNA polymerase- An enzyme called RNA polymerase is in charge of converting a DNA sequence into an RNA sequence during transcription.
Transcription- The procedure through which a cell copies a DNA fragment into RNA. The messenger RNA (mRNA) copy of this RNA contains the genetic material required for protein synthesis in a cell.
Template Strand- The template strand serves as the foundation on which RNA polymerase constructs the RNA. This strand is also known as the antisense or non-coding strand. The RNA sequence is same on the non-template strand (except for the substitution of U for T).
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When viewing the euglena in lab, you should be able to positively identify the _________ and __________.
When viewing the euglena in lab, you should be able to positively identify the chloroplasts and stigma.
The slide will exhibit both amoeba and euglena, which are frequent in pond water and pond weed, when examined under a microscope. Students can also see amoeba in the sample, but they can tell them apart from euglena. Students will see these organisms (Euglena) in this situation as long-bodied creatures with a whip-like tail on one end.All green plants and algae include chloroplasts. They are the ones who feed the plants. These are located in the mesophyll cells of the plant's leaves. They have an abundance of chlorophyll, which absorbs sunlight. Animal cells do not include this cell organelle.To learn more about euglena.
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Some types of cell retain the ability to differentiate into other types of cell. Are these
cells more common in animals or plants?
Answer: meristematic cells in higher plants and embryonic stem cells in animals.
Explanation:
a cell that can differentiate into all cell types of the adult organism is known as pluripotent.such cells are called meristematic cells in higher plants and embryonic stem cells in animals.
Answer:
a cell that can differentiate into all cell types of the adult organism is known as pluripotent, such cells are called meristematic cells in higher plants and embryonic stem cells in animals.
which of these organelles can be found in the cytoplasm and on the surface of the endoplasmic recticular
What period and group is water located in?
Since water does not contain a single element, it is not listed on the periodic table.
A kind of substance known as an element is one that cannot be reduced chemically into smaller particles. Hydrogen and oxygen make up water. Because it is composed of molecules, water is a compound. Water atoms don't actually exist. The ratio of two hydrogen atoms to one oxygen atom determines the composition of water molecules. The chemical elements are arranged in the periodic chart according to their atomic numbers, starting with hydrogen and moving up to oganesson, which has the highest atomic number.
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The cell membrane of an animal cell was damaged, preventing the cell from performing one of its functions. Which cell function would be lost, and how would this loss affect the cell?.
Answer: The cell would no longer be able to provide the first barrier around the cell wall, causing the cell wall to expand
Explanation:
in one paragraph, how would you summarize the major causes, risk, and effects of the zika virus to someone who has never heard about the condition?
The mosquito that transmits the Zika virus is common all throughout the world.
Mosquito bites generally spread the Zika virus to people in tropical and subtropical areas of the world. Most Zika virus sufferers show no symptoms at all. Some patients frequently have a mild temperature, rash, and painful muscles. The Zika virus may, in extremely rare instances, cause problems with the brain or neurological system, such as Guillain-Barre syndrome, even in people who never show any symptoms of infection. Other names for the Zika virus infection include Zika, Zika fever, and Zika virus illness.
Symptoms Up to 4 out of 5 people who have the Zika virus exhibit no symptoms at all. When symptoms do materialize, they usually begin two to fourteen days after a person.
Zika virus symptoms most frequently manifest as:
Rash of a mild feverEspecially in the hands or feet, joint discomfortRed eye color (conjunctivitis)To know more about zika virus visit:
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a common mechanism by which sensor cells in the host detect micro-organisms relies on the production of unique microbial components not found in the host. propose a strategy by which a clever microbe could evade this type of response.
By the production of protein by microbe which is similar to the host protein is the clever way by which microbe could evade this type of response.
Microbes- Microbes are extremely minute living entities that are all around us and are invisible to the unaided eye. They are aquatic, terrestrial, and avian organisms. Millions of these bacteria, which are also referred to as microorganisms, reside in the human body. While certain microorganisms make us ill, others are vital to our wellbeing.
Protein- Living things include chemical molecules called proteins. They perform several different tasks, such as organizing, transportation, and defense. A protein can have up to four different structural levels and is made up of chains of amino acids.
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21. How long does it take a star to get back to the same position in the sky it was the night before?
a. 23 hr 40 mins
b. 24 hrs
c. 24 hrs 5 mins
d. 23 hrs 56 mins
Answer: 23 hrs 56 min
Explanation: Because the earth rotates a full rotation in 24 hrs so the star will be in the same spot just before the full rotation is done.
one can measure time by the fractional distance a star has gone in its full circle around the sky. This is best done for stars that never set, stars near the north celestial pole.
A 22-year-old presents with chronic bronchitis. tests reveal closure of the airway during expiration. this condition is most likely caused by _________.
A 22-year-old female presents with chronic bronchitis. Tests reveal closure of the airway during expiration. While planning care, a nurse recalls this condition is most likely caused by thick mucus produced by hypertrophied glands.
Chronic Bronchitis- Inflammatory response (swelling) as well as irritation of the bronchial passages characterize chronic bronchitis. These tubes serve as the airways that transport air from and into the lungs' air sacs. Mucus accumulates as a result of the tubes being irritated.
3.6% of persons aged 18 and over, or 9.0 million adults, had chronic bronchitis in 2018.
An inflammatory mononuclear cell infiltration inside the airway wall as well as a neutrophil influx into the airway lumen are two features of chronic bronchitis' pathogenesis.
The given question is incomplete, find below the complete question,
Q. A 22-year-old female presents with chronic bronchitis. Tests reveal closure of the airway during expiration. While planning care, a nurse recalls this condition is most likely caused by:
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The rna transcript being produced by the rna polymerase is complementary to the template strand of the dna. True or false?.
It is True that the RNA transcript are being produced by the RNA polymerase is totally complementary to the template strand of the DNA
The RNA is chain produced by the transcription—the transcript—is therefore the elongated one nucleotide at the time, and it has a nucleotide sequence that is exactly the complementary to the strand of the DNA used as the template of RNA and polymerase synthesizes an RNA transcript the complementary to the DNA template strand in the 5' to 3' direction. It was moves forward along the template strand in the 3' to 5' direction, and opening the DNA of double helix as it goes
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what is the connection between latitude and solar energy
Answer:
The lowest latitudes get the most energy from the Sun. The highest latitudes get the least. The difference in solar energy received at different latitudes drives atmospheric circulation. Places that get more solar energy have more heat.
Explanation:
An undersupply of which neurotransmitter has been linked with depression? group of answer choices
An undersupply of serotonin neurotransmitter has been linked with depression.
What is serotonin?A monoamine neurotransmitter called 5-hydroxytryptamine is serotonin (5-HT). Additionally, it affects hormones.
As a neurotransmitter, serotonin transmits and receives messages from nerve cells in the body's central nervous system and peripheral nervous system. Chemical instructions are sent to your body on how to function.
Serotonin regulates body temperature, sleep, hunger, and sexual activity in addition to having an impact on learning, memory, and happiness. Mania, anxiety, melancholy, and other disorders are thought to be exacerbated by serotonin deficiencies.
Therefore, a lack of serotonin has been linked with depression.
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Describe what happens to amino acids, fatty acids, and why can they all be burned for energy?
amino acids -
fatty acids -
why can they all be burned? -
The degradation of amino acids comprises the removal and excretion of the amino group and the oxidation of the remaining carbon chain (α-keto acid).
What happens to amino acids, fatty acids, and why can they all be burned for energy?Amino acids - is rich in organic carbon, which makes bonds that, after being broken, can form the so-called nutritive reserves of the plant, burning steps in the production of energy.Fatty acids -are important energy reserves for organisms. Because they are insoluble, they do not have solvation water, requiring less storage space. The carbons in fatty acids are reduced more than those in sugars, storing more energy.How is ATP formed from amino acids?In aerobic fermentation, NADH is generated in two ways, glycolysis and the Krebs cycle, to generate ATP in the electron transport chain. Oxidative phosphorylation converts excess NADH + H+ to NAD+ and, in the process, produces ATP molecules as a form of energy to be stored.
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