The percent errors are 0.8 percent and 2 percent
It is given that the theoretical boiling point of water is 100.0 degree celsius
When any impurity is added to water, its boiling and freezing points increase or decrease accordingly.
We are required to find the percentage error in calculation of freezing point or in simple words deviation from theoretical value of 100 degrees
We are given two temperatures
Case 1:
When the boiling point is 99.2 degree
deviation from theoretical value= 100-99.2 = 0.8 degrees
Percent error in calculation from theoretical value =deviation/original value x 100
= 0.8 /100 x 100 = 0.8 per cent
Case 2:
When the boiling point is 102 degree
deviation from theoretical value= 102-100 = 2 degrees
Percent error in calculation from theoretical value =deviation/original value x 100
= 2/100 x 100 = 2 per cent
Hence the percent errors are 0.8 percent and 2 percent
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Which of the following correctly relates the cell structure to its function in plant cells?
vacuole – protein synthesis
ribosome – waste disposal
nucleus – lipid storage
mitochondria – sugar conversion
Mitochondria sugar conversion correctly relates the cell structure to its function in a plant cell.
Cell:The cell is the basic unit of life. There are two types of cells plant cells and animal cells. animal cell do not have a cell wall. Vacuole is the membrane bound organelle.
A vacuole is an organelle performs various functions such as to store water, remove and store harmful foreign products and store nutrients such as lipids, proteins and carbohydrates.
Ribosomes are the complex cells found in living cell which helps in protein synthesis. Ribosomes have two more functions for protein synthesis in cell.
Nucleus is the located in the center of the cell. It contains genetic material of the cell. DNA is the genetic material found in eukaryotes and RNA is the genetic material in the Prokaryotes such as virus.
Mitochondria is the powerhouse of the cell. It produces energy from the glucose. ATP is the energy unit for a cell.
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Explain the role that certain environmental factors may have in the process of unregulated
cell division. Provide an example to support your response.
An extensive research has been done to understand the role of environmental factors in the process of unregulated cell division. Four scientists including Higginso, Muir, Doll and Peto in 1977 tried to explain that 80 percent of all types of cancer were caused due to environmental factors.
However, modern studies suggest that unregulated cell division results from both, environmental factors as well as genetics. Radiation, toxins and certain chemicals or drugs can lead to the development of cancer following unregulated cell division.
For example Ultraviolet (UV) radiation from the sun can cause various types of skin cancers including Basal cell carcinoma, Squamous carcinoma as well as Melanoma.
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what environment is the paulownia tree from?
Answer:
The paulownia is a native of the temperate forests of China.
Which characteristic of life is responsible for maintaining an organism's internal environment?
A. homeostasis
B. metabolism
C. response
D. heredity
Answer:
Homeostasis.
Living organisms regulate their internal environment to maintain the relatively narrow range of conditions needed for cell function.
Explanation:
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The smooth endoplasmic reticulum is associated with the synthesis of which of the following classes of biomolecules?
A Proteins B Lipids C Carbohydrates D Nucleic Acids
Smooth ER is largely associated with lipids as well as the following:Phospholipids as in plasma membranes, and steroids.So the answer is (B)
Answer: the answer is A: proteins
Explanation:
6. How do the properties of elements compare to the
properties of the co mpounds they form?
a. The properties of the elements may differ from the
properties of the compounds they form.
b. The properties of the compound are always the same
as the elements that are in the compound
c. The properties of the compound will change only if
the elements in the compound are exposed to heat.
d. The properties of the compound are the same as the
properties of the individual atoms in the compound.
The properties of elements that compare to the properties of the compounds they form is as follows: the properties of the elements may differ from the properties of the compounds they form (option A).
What is a compound?A compound is a substance formed by chemical bonding of two or more elements in definite proportions by weight. This means that chemical elements combine chemically via bonds to form compounds.
However, the properties of compounds are different from the properties of the elements that form them because elements in a compound combine and become an entirely different substance with its own unique properties.
Therefore, the properties of elements that compare to the properties of the compounds they form is as follows: the properties of the elements may differ from the properties of the compounds they form.
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According to Linnaeus, which of the following applied to minerals?
A. They grow.
B. They grow and live.
C. They grow, live, and feel.
D. None of the above.
Answer: d
Explanation: minerals are non-life
Earth is made up of four main spheres. The geosphere refers to the rocks, minerals, and natural landforms that make up Earth’s surface. What do you think makes up the hydrosphere? Why is the hydrosphere important to life on Earth?
The hydrosphere is composed of all water bodies. Water plays a crucial part in our daily lives, making the hydrosphere significant to life on earth since it provides watery habitat to a variety of plants and animals.
The total volume of water present on a planet is referred to as its hydrosphere. "Habitat is a term applied in ecology to express the collecting of resources, physical and biological qualities that occur in a specific given region to support a species' survival and reproduction,"
The five main habitat types are aquatic habitats, polar regions, mountains, grasslands, and deserts.
It encompasses both regions that are occasionally submerged in water and regions that are submerged in water permanently.
Hence, hydrosphere is made up of water bodies and it provides aquatic habitats to various organisms.
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what is the name for the rafflesia's organism
What is used to trap light energy in plants?
Answer:
chlorophyll
Explanation:
this is right
Answer:
Chlorophyll.
Explanation:
Chlorophyll, located in chloroplasts in the leaves of a plant.
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what single characteristic of the selectively permeable membranes used in the laboratory determines the substances that can pass through them
Answer:
The single characteristic of the selectively permeable membranes used in the laboratory determines the substances that can pass through the size of pore.
(b) Earth rotates on its axis in 1 day. At what velocity is a person standing at the equator in the figure
above (Person 1) moving due to our planet's rotation?
km/h
mph
Answer:
1669.78 km/hr
Explanation:
Equator size of the circle = 2πr
os λ = 2x3.14x6378.1x
Cos 0= 2x3.14x6378.1x1 =40074.78 km
Now velocity at equator = Size of the circle ÷ Time = 40074.78 ÷ 24 = 1669.78 km/hr.
Hence the person standing at the equator will be moving at a speed of 1669.78 km/hr.
Features of mushroom 10 point
Q. Is the following equation balanced?... Al + O2 --> 2Al2O
Answer: no
Explanation: balanced vers. 2Al+O2 =2AlO
what would happen if herbivores were removed in a food chain
Consider the scenario.
A scientist sets up an experiment to see how sugar in the diet of
rats affects their weight. The scientist feeds one group of rats a
diet high in sugar, another group a diet of moderate sugar levels,
and a third group a diet low in sugar.
All of the rats in the experiment are the same species and age
and start the experiment at a healthy weight. The rats also
receive the same kind of sugar.
What is the independent variable?
A. amount of sugar
B. weight of the rats
C. age of the rats
D. type of sugar
The dependent variable is affected by the independent one. The amount of sugar (heigh, moderate, low) is the independent variable. Rats weight is the dependent variable.
What are the dependent and independent variables?Independent variables are those modified or changed by the researcher to study how this change affects another variable and hence the results.
This variable is not affected by any other one but influences or causes a reaction in other variables.
The dependent variable is the one influenced by the independent variable, and is affected by any change on this last one.
Its response might be either directly proportional or inversely proportional to the change in the independent variable.
In the exposed example,
Aim of the experiment: to see how sugar in the diet of rats affects their weight.Independent variable: Amount of sugar (high, moderate, low)Dependent variable: Rats weightControl variables: Type of sugar, initial weightThe amount of sugar (independent variable) that was provided to rats will affect or influence their weight (dependent variable).
So, rats weight will change according to the sugar they get in the diet.
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2. Upon being diagnosed with Cirrhosis of the liver, doctors urge patients to limit the amount of salt intake in their diet to help decrease the rate of scarring. During salt intake the blood becomes increasingly (hypertonic, hypotonic) to the interstitial fluid. Due to this osmotic imbalance, the liver cells become (hypertonic, hypotonic) to the interstitial fluid. This causes the liver cells to appear (shriveled, swollen). (3pt)
The liver also produces a protein called albumin, which is responsible for maintaining osmotic pressure inside the blood plasma compartment of the body. Over time scarring of the liver leads to a decreased production of this protein. When the levels fall, the blood plasma becomes (hypotonic, hypertonic) to the interstitial fluid. Due to this osmotic imbalance, the tissues become (hypertonic, hypotonic) which leads to fluid seeping from the legs and feet. (2pt)
The correct option about the states of the liver are:
HypertonichypertonicswollenhypotonichypotonicWhat are hypertonic and hypotonic solutions?Hypotonic solution are solutions that have lower solute concentration that the interior of a cell or the cytosol of the cell. Water flows into the cell when they are placed in hypotonic solutions.
Hypertonic solution are solutions that have higher solute concentration that the interior of a cell or the cytosol of the cell. Water flows out of the cell when they are placed in hypertonic solutions.
During salt intake the blood becomes increasingly hypertonic, to the interstitial fluid. Due to this osmotic imbalance, the liver cells become hypertonic to the interstitial fluid. This causes the liver cells to appear swollen.
The liver also produces a protein called albumin, which is responsible for maintaining osmotic pressure inside the blood plasma compartment of the body. Over time scarring of the liver leads to a decreased production of this protein. When the levels fall, the blood plasma becomes hypotonic, to the interstitial fluid. Due to this osmotic imbalance, the tissues become hypotonic which leads to fluid seeping from the legs and feet.
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What does PAN stand for?
Answer:
In the fields of molecular biology and genetics, a pan-genome (pangenome or supragenome) is the entire set of genes from all strains within a clade. More generally, it is the union of all the genomes of a clade.
Explanation:
Carbonic anhydrase is a protein present in red blood cells. It catalyzes a reaction to convert carbon dioxide into carbonic acid and bicarbonate ions so that CO2 waste may be more easily removed from the body.
What role does this protein play in the body?
Carbon dioxide is converted to carbonic acid and bicarbonate ions with the help of the enzyme carbonic anhydrase found in red blood cells. The same enzyme aids in converting the bicarbonate ions back to carbon dioxide when red blood cells go to the lungs, where they are exhaled.
What is the action of carbonic anhydrase?In humans, the primary function of carbonic anhydrase is to catalyze the transformation of carbon dioxide into carbonic acid and back again. However, it can also aid in the blood's transportation of CO2, which benefits breathing. Even the stomach's production of hydrochloric acid can use it.
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Question 1 of 10
Which element of the scientific process includes the greatest amount of
information about living things?
OA. A hypothesis
OB. A theory
OC. A conclusion
OD. A data record
SUBMIT
According to the research, the correct option is B. A theory is the element of the scientific process that would include the greatest amount of information about living things.
What is a theory?It is a set of ideas or proven hypotheses that explain some phenomenon studied or a scientific description based on a set of observations or experiments.
In this sense, it is a logical system that is established from observations, axioms and postulates, and is formed by the set of concepts, propositions and definitions that are related to each other with the aim of explaining the given phenomenon.
Therefore, we can conclude that according to the research, the correct option is B. A theory is the element of the scientific process that would include the greatest amount of information about living things.
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1. Explain how human activity other than deforestation may disrupt the natural carbon cycle.
2. Suggest how human disruption to the carbon cycle can be minimized
Human activities that disrupt the carbon cycle could be minimized by;
Decreasing deforestationReducing of not eliminating the use of fossil fuelsWhat is the carbon cycle?The carbon cycle refers to the process of the movement of carbon in nature. We know that materials such as elements and compounds move round the ecosystem in the biogeochemical cycles.
This entire process is balanced save for human interferences. Human interferences include deforestation which removes the natural carbon sinks and the use of fossil fuels which inflates the amount of carbon in the atmosphere.
We know that human activities have weighed down very heavily on the balance of carbon in nature and this has caused a lot of imbalance that have eventually let to a myriad of environmental challenges that exists on earth.
Human activities that disrupt the carbon cycle could be minimized by;
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If you could genetically engineer any species of organism, what would it be? Would it be a unicorn? A dog-cat hybrid? Your own personal pet giant? Choose any species—real or not—that your imagination desires!
Write a paragraph describing your species, what it looks like, and where it lives. Think of any inherited traits the species has that might help it survive in its environment. Thinking of these traits now can help you come up with allele combinations in the next step. Now describe your species in the answer space.
If we can genetically engineer any species of organism, it would be a human-fish hybrid.
A human-fish hybrid would have lungs as well as gills to breathe so that life can be also possible under water.
It would be revolutionary because humans would not be just restricted to land but also be able to explore deep seas and oceans and found new types of minerals and other hidden treasures in the deep seas and oceans.
If somehow land became unfertile or flood hits, human will still be able to cope up with that and if by some reason the land collapses or air became all polluted, we can still live underwater and make a new civilization.
This hybrid will also provide us the power of echolocation because of the sonar detection feature in most fishes.
This hybrid would also be able to talk to other fishes if fishes can talk to each other, it will basically be like a living mermaid just not the fin.
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Small insects fall into the pitcher plant and can not climb out due to presence of
a) nutrients
b) decomposers
c) enzymes
d) stiff hair
Small insects fall into the pitcher plant and can not climb out due to presence of enzymes.
Because they don't rely on any other living thing to provide them with the energy they need to function, plants are the primary producers of an ecosystem.However, there are also several carnivorous plants that hunt a variety of small insects and bugs to consume them in order to obtain the essential energy.Similar to pitcher plants, which are also common carnivorous plants, pitcher plants hunt primarily using traps resembling jars and lids.When there are no insects or bugs sitting on the jar-like structure, it is always opened. A lid-shaped leaf tightly encloses the jar trap once the beetle or insect has settled on that jar-like structure.Additionally, the digestive enzyme fluid included within this trap aids in the digestion of the insects and other pests caught inside the plant.Therefore, option C. is correct.
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Aspartame is a food additive that can cause dangerous health problems for some people. a. true b. false
More than 200 different types of cells exist in the human body. Why do you think these cells are important for
various body functions? Explain your response.
Answer:
because without a particular cell u can't b sure that you're fully birthed or healthy you can't know what they perform but it deals with your ideology on the way you relatively understand the way you feel.
explanation: cell is the basic unit of life
Hemoglobin is a protein found in red blood cells of vertebrates and in the plasma of many invertebrates. The function of this protein is to transport oxygen throughout the body and to bring carbon dioxide back to be expelled from the organism. If the amino acid sequence of the protein is altered, the mutated protein is not as efficient at carrying oxygen as is the normal hemoglobin. Which argument is supported by this information?
The mutated hemoglobin protein can still carry carbon dioxide to be expelled from the organism.
Hemoglobin must be a simple molecule because it is found in both vertebrates and invertebrates.
Structural changes of hemoglobin affect its ability to carry oxygen, indicating that the shape of a protein is important to its function.
Normal hemoglobin must be a larger molecule than the mutated hemoglobin since it has sufficient space to attach to and carry both oxygen molecules and carbon dioxide molecules.
Hemoglobin is a protein found in the red blood cells of vertebrates and the plasma of many invertebrates. The function of hemoglobin is to carry oxygen throughout the body and to bring carbon dioxide back to be expelled from the organism. If the amino acid sequence of the protein is altered, the mutated protein is not as efficient at carrying oxygen as normal hemoglobin. Option three "Structural changes of hemoglobin affect its ability to carry oxygen, indicating that the shape of a protein is important to its function" the above argument is supported by this information.
Changes in the structure of hemoglobin protein can impact its oxygen-carrying capacity since the oxygen binding sites have been altered or removed due to the change in the amino acid sequence the protein shows less efficiency.
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9. Why does it rain more in summer and less in winter in India?
Answer:
not just In India
Explanation:
the reason is that the Summer is more hot and warmer than the winter so the weather will evaporate and that's what cause the rain in the hot weather other than the winter which it already cold
identify the anatomical structure A-F
Answer:
Option A: StifleOption B: ShoulderOption C: KneeOption D: CoronetOption E: PasternOption F: HockIf these are not part of your answer options or if something seems off, please let me know and I will do whatever needed to fix that.
Hope it helps.
Scientific reason for oil raising to the top of dyed water
Answer: Oil is lighter than water,
Explanation: therefore it floats on it. It would have sunk if it had been heavier than water like iron. Density is a measurement of the amount of mass per unit volume in an object.
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Which of the following cells is formed by meiosis?
O A. A brain cell
O B. A bacterial cell
O C. A stem cell
• D. An egg cell
Answer:
D. An egg cell
Explanation:
Meiosis is the type of cell division that creates egg and sperm cells.
∴ The only answer stated from the statement is D.