Which of these is a pure substance? Question 3 options: a penny sugar ocean water iced tea

Answers

Answer 1
i believe the answer would be sugar

Answer 2

Answer:

Pretty sure the answer is: sugar

Explanation:

ocean water has salt and fish stuff so it isnt pure water.

penny is metal but not made out of just one metal

iced tea is a no

so ya

Hope this helped


Related Questions

Why are people not able to scuba dive to the deeper parts of the ocean?

Answers

There is too much water pressure. If you go down too deep, your lungs and internal organs would all burst.. who would want that?

So basically, a human would need more protection than what scuba gear would offer. (ex: a submarine would be so much more suitable)
The human body can't take all that pressure of the water. Imagine all that weight of the water on a human, It's currently impossible.

Hope this helps!

What motion will result from two forces acting on an object :one forcee of 50 newtons to the east, the other a force of 30 newtons to the west ? The object will-

Answers

What motion will result from two forces acting on an object: one force of 50 newtons to the east, the other a force of 30 newtons to the west ? The object will accelerate to the east 

Final answer:

The object will move to the east with a net force of 20 newtons, due to the larger force acting in that direction after subtracting the smaller westward force.

Explanation:

When two forces act on an object in opposite directions, the object will experience motion in the direction of the net force.

In your case, you have one force of 50 newtons to the east and another force of 30 newtons to the west.

To determine the motion, you subtract the smaller force from the larger force (50 N - 30 N = 20 N) to find the net force.

The object will move to the east with a net force of 20 newtons.

___plants/factories use the force of water to generate electricity.

A. Combustion
B. Coal
C.Beta Ray
D. Hydroelectric
E. Oil
AB. all of the above
AC. none of the above.

Answers

the awnser will be e

What body systems depend on the nervous system?

Answers

technically all of them depend on your nervous system. the respiratory, endocrine, skeletal, cardiovascular, digestive, and urinary. all of these are influenced by the nervous system. 

-hope this helps

Plants need carbon dioxide in order to survive. Plants get this gas from , which is something all organisms need.

Answers

All organisms need air. There are organisms called anaerobic organisms that don’t need oxygen, but all organisms need air.

Answer:

the answer is air

Explanation:

some enzymes may be used to stop a reaction from moving forward
true or false

a chemical reaction producing energy for a cell is
a. Embden-Meyerhof Pathway
b. Glycolysis
c. Production of ATP occurs in the mitochondria in eukaryotes or on the plasma membrane of bacteria
d. All of the above

Answers

1. The statement above is TRUE. 
There are different types of enzymes which perform different functions. Some enzymes are capable of limiting chemical reaction, stopping the reaction from moving forward, such type of enzymes are called REGULATORY ENZYMES. This type of enzyme regulate the activities of other enzymes. The use of regulatory enzymes is one of the means which the body used to control biochemical reactions. 

2. A chemical reaction producing energy for the cell is GLYCOLYSIS.
Glycolysis is the biochemical process by which the glucose molecules are broken down in order to produce energy for the body. Embden-Meyerhof Pathway is one of the major pathway of glycolysis but it is not the only one, there are other glycolytic pathways in living organisms. Glycolysis is the principal way by which energy is supplied to the cells.

Compare the sexual and asexual reproduction methods in plants.

Answers

Asexual reproduction produces individuals that are genetically identical to the parent plant. The methods of asexual reproduction include: budding, grafting and cutting.
Sexual reproduction in plants produces individuals that only share some characteristics with the parents, but are not genetically the same. This is done primarily through pollination and fertilization.

Scientists examine a newly discovered object and discover that it is, indeed, made up of smaller parts. What must the smaller parts do in order to classify the object as living?

Answers

They are classified as living because there dead

If molecules move from one place to another inside of a cell, which type of communication is this?


A. Intracellular, enzyme-linked receptor


or


B. Intracellular, molecular signal

Answers

The communication in which molecules move from one place to another inside of a cell is intracellular type of communication, molecular signal. Answer:B
The molecular signals can be one of the following four types:
Endocrine, Paracrine, Neuronal and Juxtacrine.

what can you conclude about the structure of mitochondria?

A. They are membrane-bound organelles with a second, stacked membrane inside to mention extra area for cellular respiration.
B. They take instructions from DNA and make proteins.
C. They break down sugars to provide energy for the cell.
D. They are organelles, which are a group of flattened membrane sacs stacked top of each other

Answers

The correct answer is A.) however C.) is cellular respiration or the function of the mitochondria.  D.) is describing chloroplasts B.) is something concerning DNA and proteins synthesis
Final answer:

The structure of mitochondria consists of a double membrane system, an outer and a highly folded inner one. This structure provides an extensive surface area for cellular respiration, which allows the mitochondria to generate energy by breaking down sugars.

Explanation:

The structure of mitochondria can be broadly summarized by options A and C. Mitochondria are unique, membrane-bound organelles present within cells. They have a double membrane structure; an outer membrane and a highly folded inner membrane, known as the cristae, which provide a large surface area for cellular respiration, facilitating energy production. This configuration helps mitochondria to execute their primary function, which is the production of ATP (adenosine triphosphate) by breaking down sugars during the process of cellular respiration (option C).

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Scientists who concluded that all plants are made of cells

Answers

The scientist who concluded that all plants are made of cells was Mattias Schleiden in 1839.

The conclusion that all plants are made of cells is credited to the botanist Matthias Schleiden in the 19th century.

Matthias Schleiden, a German botanist, played a significant role in establishing this concept. In 1838, Schleiden proposed that every part of a plant is composed of cells or the products of cells.

He carefully examined plant tissues under microscopes and observed similarities between plant cells and the cells described by Theodor Schwann in animal tissues.

key figure in this discovery was Theodor Schwann, a German physiologist and zoologist. In 1839, Schwann, building upon Schleiden's observations, extended the cell theory to animal tissues.

He asserted that cells are the fundamental units of structure and function in all living organisms, emphasizing that plants and animals are fundamentally similar in their cellular composition.

Rudolf Virchow, another German physician, pathologist, and biologist, further refined the cell theory in 1855. He stated that cells only arise from pre-existing cells, challenging the notion of spontaneous generation. Virchow's concept, "omnis cellula e cellula" or "every cell originates from another existing cell," solidified the cell theory as a fundamental principle in biology.

The collective contributions of Schleiden, Schwann, Virchow, and others led to the establishment of the cell theory, one of the fundamental principles of modern biology.

Their findings revolutionized our understanding of the structural and functional units of life and laid the foundation for advancements in cell biology, genetics, and various other scientific disciplines.

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Which is a carbohydrate monomer

Answers

Monosaccharides I believe is the monomer of carbs

significant figures... to four figures: 3.682417

Answers

If you are rounding to four significant digits, then it should just be 3.682
If you have to round a number to 4 significant figures you have to see if the number next to forth digit is lower than five or higher than five if the number is five or higher than five than you have to round up if the number is lower than five than you have you round down.
For example- 3.682417 the number next to forth digit is lower than five so you have to round down so we are left with 3.682

basking in the sun
swimming
increasing or decreasing activity level


These are all activities a cold-blooded reptile may do to maintain
A) homeostasis. B) body weight. C) peer dominance. D) blood sugar levels.

Answers

i think that the answer is A to your question

Correct answer: A). Homeostasis

Homeostasis is the tendency to maintain a constant internal environment. The body maintains homeostasis for many factors in addition to temperature.

All mammals and birds are same, i.e they maintain homeostasis as they are warm-blooded animals. However, reptiles or the cold-blooded animals maintain their internal body temperature by basking in the sun.



A gray wolf’s scientific name is Canis lupus. Which taxonomic groups are represented by “Canis Lupus”?

A. Phylum

B. Genus and species

C. Order and genus

D. Group and species

Answers

the answer is B i did the test before

The taxonomic group that is represented by “Canis Lupus" is Genus and species. The correct option is B.

What is taxonomy?

Taxonomy is the science of naming, describing, and classifying organisms, and it encompasses all of the world's plants, animals, and microorganisms.

The practice and science of categorization or classification is known as taxonomy. A taxonomy is a classification scheme, particularly a hierarchical classification, that organizes things into groups or types.

Taxonomy processes include characterization, identification, and classification. Organisms are classified into kingdoms, phylums, classes, orders, families, genera, and species.

"Canis Lupus" belongs to the taxonomic group Genus and species. Taxonomy employs hierarchical classification to assist scientists in understanding and organizing the diversity of life on our planet.

Thus, the correct option is B.

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which parts are the same in all nucleotides? which part is different

Answers

Nucleotides have the same phosphate group and Nitrogen containing base is different. 
Your answer is:

Nucleotides have the same phosphate group and Nitrogen containing base is different.

Chemical processes store and release _____ in the bonds of molecules.

Answers

Energy is the answer

Explanation:

A bond formed by sharing or transfer of electrons is known as a chemical bond. Since, atoms in a chemical bond combine with each other through a chemical process as exchange of electrons has taken place.

So, there will be chemical energy present between the bonds of chemical compound.

For example, bond between K and Cl is ionic and it will have chemical energy as this bond is formed by transfer of electrons.

Therefore, we can conclude that chemical processes store and release energy in the bonds of molecules.

Lawrence is conducting an experiment to see how much force it takes to push objects made of different materials along the ground. He uses a rubber object, a plastic object, a wooden object, and a glass object. He makes sure that each object is the same mass and that each object has the same amount of surface area in contact with the ground. He decides to test his objects on the same patch of cement under identical conditions for each trial.

Which of these are constants in Lawrence's experiment?

the amount of force he uses to push each object
the amount of surface area contacting the ground for each object
the type of surface he pushes each object along
the material each object is made out of
the mass of each object

Answers

Answer:the amount of surface area contacting the ground for each object

the type of surface he pushes each object along

the mass of each object

Explanation:

A constant in experiment can be a parameter which does not change it's form or value irrespective of changes occurring in the corresponding variables.

Able mentioned statements show the constants in the experiment.

The amount of force used to push the object is dependent variable. As it is required to be find out. The material each object made of is independent variable. It will exert influence over the force with which object was pushed.

Final answer:

The constants in Lawrence's experiment are the amount of surface area contacting the ground, the type of surface each object is pushed along (cement), and the mass of each object.

Explanation:

In Lawrence's experiment, constants are the aspects that do not change throughout the testing. The constants in his experiment are:

The amount of surface area contacting the ground for each object

The type of surface he pushes each object along, which is cement

The mass of each object as they all have the same mass

These factors are kept constant to ensure that the only variable affecting the amount of force required to push each object is the material the object is made out of. Keeping these elements unchanged during the trial eliminates other variables that could influence the experiment's outcome.

Which part of a neuron contains the nucleus?
axon
cell body
dendrite
myelin sheath
neural impulse

Answers

The cell body. Hope this helps
Final answer:

The nucleus of a neuron is located in the cell body, or soma, which is the central part of the neuron and holds other vital organelles.

Explanation:

The part of a neuron that contains the nucleus is the cell body, also referred to as the soma. The nucleus is the control center of the neuron and is where genetic material is housed. Surrounding the nucleus, the cell body also contains other important organelles, such as mitochondria, which are crucial for providing energy to the neuron. Dendrites are the parts of the neuron that receive nerve impulses from other cells, and they are connected to the cell body. The axon is another extension from the cell body that transmits nerve impulses away from the neuron to other cells or to muscle fibers or glands.

what role does tRNA play in translation

Answers

rRNA plays a role in translation, in which the messenger RNA's codons and tRNA's anticodons are used to make  protein.

It link the correct amino acids together

The eruption of Mt. Pinatubo in the Philippines
a) caught the human population unaware, giving no prior signs of activity.
b) affected only local, island ecosystems.
c) produced aerosols that blocked the sun and resulted in a drop in global temperatures.
d) produced large amounts of sulfur dioxide but few aerosols.

Answers

Correct answer: C
A) Before the actual first eruption on June 3, 1991, since early March, several other happenings occur such as earthquakes, phreatic eruptions, releasing of ashes, etc. that made the population aware of what was about to happen.
B) It affected the whole atmosphere and consequently the whole earth, having had effects throughout the whole world climate, agriculture, health, and other parameters.
D) It produced so many aerosols that's thought to be the largest eruption at emitting aerosols since Krakatoa's eruption.

Final answer:

The eruption of Mt. Pinatubo in 1991 (option c) produced aerosols that significantly blocked sunlight and lowered global temperatures, resulting in widespread ecological and economic consequences. Pre-eruption alerts enabled evacuations, saving lives despite the substantial damage.

Explanation:

The eruption of Mt. Pinatubo in the Philippines c) produced aerosols that blocked the sun and resulted in a drop in global temperatures. This occurred in 1991 and was one of the largest eruptions in over a century. The volcanic activity sent billions of tons of magma, ash, sulfur dioxide, and particulates into the atmosphere, causing widespread ecological and economic devastation. The impact was not merely local as it influenced global temperatures, creating a volcanic winter by cooling the Northern Hemisphere by 1°C. Additionally, prior alerts and monitoring had enabled evacuation, saving many lives despite the extensive damage caused.

abiotic factors that best describe a coniferous forest.

Answers

precipitation, soil, temperature, humidity, and altitude 
Precipitation , soil, temperature, humidity, and altitude

what are monosaccharides made of

Answers

Monosaccharides are made of one sugar unit.
Mono = one.

Which one of the following chemical formulas represents an organic molecule

Answers

Where's the options...........

This is where the genetic information is found in a eukaryotic cell?
A) nucleus
B) cytosol
C) mitochondrion
D) endoplasmic reticulum

Answers

A nucleus

The nucleus contains all genetic information
nucleus is the answer

What three tests must all theories pass to be considered a “proven” theory?

Answers

In order to be considered as "proven" theory, all theories must pass following tests:
1. It must have the inherent possibility of being proven wrong (falsifiability). 
2. It must be a repeatable phenomenon, consistent with pre-existing theories and experiments.
3. It must be adaptable to new evidence that will increase its predictability over time.

Sound waves with a large distance between A and B would be sound waves that have a large ________ and produce loud sounds.

Answers

displacement of air 

i hope that helped mark me as branliest 

Answer:

displacement of air  

Explanation:

Sound waves are mechanical waves that vibrate at a frequency of 20 to 20,000 hertz (Hz), and are normally perceptible by the human ear. Sound is the sensation we feel, through hearing through the action of this type of wave. Another important characteristic, the sound wave needs a medium to propagate, be it gas, liquid or solid. Therefore, there is no sound in a vacuum. The greater the air displacement produced by the sound wave, the louder the sound produced by it. For this reason, we can conclude that sound waves with a great distance between A and B would be sound waves with a large displacement of air and producing loud sounds.

What kind of cell is a stomach cell?
A.) prokaryotic
B.) eukaryotic plant
C.) eukaryotic animal
D.) excretory
Please help!

Answers

Am pretty sure C or A but I think C

what are two organic functional groups in a phospholipid molecule?

Answers

Fatty acids and glycerol

Explain in your own words what the theory of evolution is

Answers

Change of things over time
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