1.
23 cm
How many significant digits are in each of the following measurements?

Answers

Answer 1

Answer:

2

Explanation:

There are no zeros so the only numbers there are is 2 and 3. So two numbers equals two sig figs.

Answer 2
2 . There aren’t any zeros so only 2 digits

Related Questions

statements that accurately describe the structure of a cell membrane

Answers

Answer:

The cell membrane is a single layer of phosphate molecules and lipids. The cell membrane is a double layer of phosphate molecules and lipids. The cell membrane has protein channels that are partly inside and partly outside the cell. The cell membrane has protein channels that are entirely inside the cell.

Explanation:

A ____ is any part of the experiment that can vary or change during the experiment. A. control B. variable C. temperature D. hypothesis

Answers

Answer:

D.

Explanation:

Your hypothesis can and will most likely change during the activity.

Fertilizer runoff can also damage areas of the ocean.
True or False?

Answers

Answer:

True

Explanation:

Fertilizers can sometimes contain chemicals which are known to be harmful to marine life.

True!! Is the answer of your question!

what dose it mean when we say water molecules break apart

Answers

answer: A water molecule consists of two atoms of hydrogen linked by covalent bonds to the same atom of oxygen. H2O molecules connect with from one hydrogen to another molecule.

explanation: This bond is very weak. Hydrogen bonds are formed easily when two water molecules come close together, but are easily broken when the water molecules move apart again.

ANSWER QUICK PLS

What determines if a biome is a desert?
- temperatures
- amount of sand
- wildlife
- precipitation

Answers

Answer:

precipitation

Explanation:

Rainfall is the only thing that determines what is a desert. Antartica is a desert because of its lack of precipitation

Precipitation or wildlife cause these two things can tell u a lot about a place that ur in and what kind of weather is there and what u have to prepare for

Which cell would doctors conclude is a cancerous mass?

A. A
B. B
C. C
D. C

Answers

The correct answer is A

Explanation:

Cancer including cancerous mass or tumors is caused by an abnormal and uncontrolled reproduction of cells. This means cell division occurs faster than normal and leads to damaged or malfunctioning cells. Moreover, in terms of the number of cells vs time, cancer leads to a high number of cells in a short time. This occurs in cell A because different from cells B, C, and D, this has increased the number of cells in a short time, while others have decreased over time or remain constant. According to this, the cell that is a cancerous mass is A.

What particle(s) are found in the center of the atom?

Answers

Protons and neutrons are in the center

Answer: Protons and Nuetrons are heavier then Electrons

Explanation: Protons, Nuetrons, and Electrons are the three main particles in a atom

Write the names of the reactants and products of photosynthesis and chemosynthesis.
+
+
+
Light Energy
Chemical Energy
1. Describe how photosynthesis and chemosynthesis differ in terms of how energy is converted,

Answers

Answer:

1) Photosynthesis:

Reactants- 6CO2 (carbon source), 6H2O, light energy

Products- C6H12O6 (organic molecule), 6O2

2) Chemosynthesis:

Reactants- 6CO2 (inorganic carbon source), 6H2O, 3H2S ( chemical energy source)

Products- C6H12O6 (organic molecule), 3H2SO4

Please find the difference in terms of how chemosynthesis and photosynthesis convert energy below

Explanation:

Photosynthesis and Chemosynthesis are both autotrophic forms of nutrition. They differ in the form of energy and reactants' used to power their respective processes.

- Photosynthesis is the process whereby plants synthesize their food (glucose) from carbon dioxide (CO2) and water (H20) in the presence of sunlight as energy, releasing oxygen gas (O2) as a product.

6CO2 + 6H2O -> C6H12O6 + 6O2

- Chemosynthesis, on the other hand, is the process whereby certain bacteria and fungi that lacks access to light synthesize organic food (glucose) from an inorganic carbon soure (carbon dioxide, CO2), water (H2O), and hydrogen sulfide (H2S), used as chemical energy source, releasing sulfates (H2SO4) as a product

6CO2 + 6H2O + 3H2S -> C6H12O6 + 3H2SO4

However, photosynthesis converts solar energy (energy in sunlight) to chemical energy (in glucose) while chemosynthesis converts inorganic chemical energy to organic chemical energy.

The chemical reaction(reactant and product) for photosynthesis and chemosynthesis are  as follows:

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

18H₂S + 6CO₂ + 3O₂ → C₆H₁₂O₆ (carbohydrate) + 12H₂O + 18S

Photosynthesis reaction:

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

This reaction is a reaction between carbon dioxide and water to form sugar and Oxygen in the presence of sunlight.

The chemical equation of photosynthesis can be interpreted as 6 molecules of  carbon dioxide reacting with 6 molecules of water to form a simple sugar and 6 oxygen molecules in the presence of sunlight . The names of the reactant and products are as follows:

carbon dioxide + water → Sugar + oxygen

Chemosynthesis reaction:

Chemosynthesis is the conversion of carbon compounds and other molecules into organic compounds.

Using H₂S as an energy source a chemosynthetic reaction can be represented below:

18H₂S + 6CO₂ + 3O₂ → C₆H₁₂O₆ (carbohydrate) + 12H₂O + 18S

From the reaction Hydrogen sulphide was used as a source of energy and it reacts with carbon dioxide and oxygen to produce sugar, water and sulphur.

Hydrogen sulphide + carbondioxide + oxygen →  Sugar + water + sulphur.

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What is it called when you make a logical interpretation based on your
observations/research?

Answers

Answer:

it is anything but the what u see in the expirment in ur question

How is the cycling of matter and energy similar?

Answers

Answer: As matter cycles and energy flows through living systems and between living systems and the physical environment, matter and energy are conserved in each change. The carbon cycle provides an example of matter cycling and energy flow in ecosystems.

Explanation:

The hand is located at what end of the forearm
Interior
Distal
Proximal
Medial

Answers

I’m pretty sure it’s distal since it’s away from the point of attachment

The hand is located at the distal end of the forearm. The correct choice is "distal".

Distal refers to a position that is farther away from the point of origin or attachment.

In the context of the forearm, the hand is located distally because it is farther away from the point of attachment at the elbow.

The forearm is the portion of the upper limb between the elbow and the wrist.

It consists of two long bones called the radius and ulna.

The hand is connected to the forearm at the wrist joint.

In other words, the hand is at the end of the forearm that is farthest from the body.

Thus, the correct choice is "Distal."

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what is an abiotic factor and a biotic factor? ​

Answers

Answer:

Explanation:

The biotic factor or biotic component is the living organism that shapes an ecosystem. Abiotic factors or abiotic components of an ecosystem are the non-living physical and chemical composition of nature. The abiotic factors will define which organisms are able or not to live in a specified place. The living organisms will constitute the biotic factors, which define if and how can an organism live in a specified environment. So, the abiotic factors are controling the biotic factors of an environment. The biotic factors refer to all the living beings present in an ecosystem, and the abiotic factors refer to all the non-living components like physical conditions (temperature, pH, humidity, salinity, sunlight, etc.) ... Therefore, both the abiotic and biotic resources affect survival and reproduction process.

In biology, abiotic factors can include water, light, radiation, temperature, humidity, atmosphere, acidity, and soil.

Biotic factors include animals, plants, fungi, bacteria, and protists. Some examples of abiotic factors are water, soil, air, sunlight, temperature, and minerals.

Answer:

Biotic Factors: is living things, their remains and features such as nests, assciated with their activites. Meaning, us, animals and plants.

Examples:

hawkssnakesrabbitsgrass

Abiotic Factors: is the non-living chemical and physical parts of an ecosytem

This can be non-living things

Examples:

HairSunIceTemperatureRocks

When a cell changes to become a [BLANK] cell, it is called differentiation

Answers

Answer:

It is a specialized cell

Explanation:

The cell changes from a simple zygote to a complex system of tissues and cell types.

Write the balanced equation for cellular respiration. Include the common names of
each compound

Answers

Answer:

C 6 H 12 O 6 + 6 O 2 --> 6 CO 2 + 6 H 2 O + ATP is the complete balanced chemical formula for cellular respiration.

Explanation:

Which of the following is not a characteristic of an industrial society? a. Moves from place to place following resources b. Uses new sources of energy c. Increases pollution d. Uses complex tools and systems

Answers

Answer: Option A.

Moves from one place to another following resources.

Explanation:

Industrial society does not move from one place to another because it is a society that involves the use of technology in the production of foods and services to support large population and use of high labour.

An industrial society does not move from one place to another rather they are situated within a geographical location and uses new sources of energy, complex tools and systems and increases pollution which is due to Advent of technology .

Answer:

a.  Moves from place to place following resources

Explanation:

what 2 things does dna polymerase do

Answers

responsible for DNA replicationcreates two identical DNA strand from one DNA molecule

hope that helps !

What is the anology between cells and a factory

Answers

Answer:

A cell can be thought of as a "factory," with different departments each performing specialized tasks. A cell's plasma membrane regulates what enters or leaves the cell. The CYTOPLASM includes everything between the cell membrane and the nucleus.

Explanation:

HOPE THIS IS GOOD

Can you answer these all right? About: cell facts.

1. All living organisms are made of cells. true or false

2. Most organisms have specialized cells that perform different functions. true or false

3. Most organisms have many types of cells. true or false

4. Most cells are easy to observe. true or false

5. Cells come in various shapes and sizes depending upon their function. true or false

6. Some organisms consist of a single cell. true or false

7. All organisms have organs and/or body systems. true or false

8. Cells combine to form organ systems, organ systems combine to form tissue, and tissues combine to form organs. true or false

Answers

Answer:

1. True

2. True

3. True

4. False

5. False

6. True

7. False

8. False

The correct options for the statements are:

1. True

2. True

3. True

4. False

5. False

6. True

7. False

8. False

What are cells?

Cells are the smallest and basic unit of life. They are made up of carbohydrates, fats, and protein. They form all life forms. Furthermore, they joined together to create an organism. The cells form tissues and tissue forms organs and organs form the organ system.

The many cell types are listed along with their characteristics and roles. Cells of numerous types are found in different kinds of organisms. They are multicellular and single-celled organisms. Eukaryotic cells are completely developed, whereas prokaryotic cells are young or primitive.

Thus, the correct options are:

1. True, 2. True, 3. True, 4. False, 5. False, 6. True, 7. False, and 8. False.

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Which uses electromagnetic radiation to discover the properties and composition of bodies in space? space probe space station space shuttle space observatory​

Answers

Answer:

Space observatory.

Explanation:

Space observatory uses electromagnetic radiation to discover the properties and composition of bodies in space because it is a telescope that is found in the outer space to check galaxies ,distance planets, and some other astronomical objects and it is sensitive to different electromagnetic spectrum in space and its wavelengths allow lights to get through the Earth's atmosphere.

Answer:

Space observatory

Explanation:

Which of the following is an example of a detritivore? a. Mushroom b. Bacteria c. Squirrel d. Buzzard e. Ladybug

Answers

Answer:

c. a squirrel

Explanation:

A detritivore is also called a decomposer and they derive the nutrients from the dead and decaying matter and release them into the environment.

The mushroom acts as a detritivore as it uses the nutrients from the old dead and decaying bark of tree and releases the same to the soil on getting destroyed. They altos help in the recycling of the nutrients back to the environment.

Hence the option A is correct.

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If you were on the moon, and you were trying to move a 20-lb bowling ball and a 3-foot cube of Styrofoam, which item would take more work to move? Why?

Answers

Answer:

The 20 lb bowling ball would take more work to move. This is because it has more mass

Explanation:

It is the bowling ball that will take more work to move. The reason for this is simple. Mass is constant anywhere, whether it is on the moon or on the earth.

It is the acceleration due to gravity that is different in both places. Work as we all know is a factor of mass, the higher the mass, the more work it will take to displace the mass from its position.

Thus, because the mass of the bowling ball is greater, it will take more work to move than the styrofoam

Use the map's contour lines to find the contour interval of the map.
A. 10feet
B. 50 feet
C. 100 feet
D. 25 feet​

Answers

hey, there’s no picture to indicate the interval of the map, please put a picture

Why can water have no net charge but have slight
charges in different parts of the molecule?

Answers

Water molecule is made up of one atom of oxygen and two atoms of hydrogen. The water is a polar compound and has slight charges due to differences in the charges.

Water molecule is composed of hydrogen and oxygen and is inorganic transparent liquid. The hydrogen and oxygen in a water molecule are linked by covalent bonds.

The oxygen is electronegative and attracts electrons. There is however no overall charge on the water molecule, but atoms of the compound have slight charges.

The unequal sharing of electrons between hydrogen and oxygen can give them slight positive and negative charges, respectively.

Thus, there are slight charges present on oxygen and hydrogen.

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What are the three outputs a result of photosynthesis?✨ Will give brilliant✨ ( when I can)

1. ____ which is also known as sugar

2. _____ _______

3. ______= O2

Of the 3 outputs, _____ is the actual food for the plant

Answers

1. Glucose
2. Calvin cycle ( I might be wrong)
3. Light reaction
Light reaction is the actual food for the plant

An ion with six protons, seven neutrons, and a charge of 2+ has an atomic number of ________.
An ion with six protons, seven neutrons, and a charge of 2+ has an atomic number of ________.
five
six
seven
four

Answers

Answer:

The atomic number is six.

true or false ? “Reasoning statements may include an explanation of a scientific principle.”

Answers

True is the answer ;)

Glucose reaches each and every cell through the circulation of ____ .

Answers

Answer:Blood

Explanation:

Glucose reaches each and every cell through the circulation of blood, which is present in Option A as the primary function of the circulatory system, which includes the heart, blood vessels, and blood, is to transport essential nutrients.

What is blood?

After food is digested and absorbed into the bloodstream, glucose is transported to cells throughout the body by the circulatory system, which consists of the blood, heart, capillaries, etc., where the heart pumps blood throughout the body via arteries, which branch into smaller vessels called arterioles and then into even smaller capillaries. The circulatory system also plays an important role in removing waste products, including carbon dioxide, from the body's tissues, so glucose has been used by cells for energy, the waste product, carbon dioxide, is transported back to the lungs, where it is exhaled.

Hence, glucose reaches each and every cell through the circulation of blood, which is present in Option A.

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The question is incomplete, complete question is below

Glucose reaches each and every cell through the circulation of ____ .

A)Blood

B)stomach

how can you identify a consumer?

Answers

You can identify your customers by grouping them according to certain characteristics that you believe may be of importance to you. This is called demographics. This will help you not only know who your customers are, but also how you would be able to deal better with them. I hope this help if not just comment and I will get a notification to help again

What two components are often found as part of an enzyme

Answers

Answer:

Enzymes contain a globular protein part called apoenzyme and a non-protein part named cofactor or prosthetic group or metal-ion-activator.

Explanation:

24. If scientists search other planets for possible life, they are likely to focus on the presence of
molecule containing which of the following elements?
A. Iron
B. Carbon
C. Potassium
D. Sodium

Answers

C as we give CO2 to plants and they give us 02
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