Can someone plz help me with these 3 new and last questions!! Will give brainliest for right answers!! Thanks!!
11. To find the volume of a few small marbles, a student will need which of the following scientific tools?

A. a balance and a centimeter ruler 3.0
B. a spring scale and a calculator
C. a graduated cylinder and water
D. a microscope and a micron ruler
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12. A student includes the following sentence in a write-up of their investigation: The lead ball has a measured mass of 113 grams. Which kind of scientific statement is this sentence?

A. inference
B. prediction
C. conclusion
D. observation
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13. Some students measure the mass of a small pile of leaves before and after the leaves decompose. Each time the students measure the mass, they place a container with the decomposing leaves on a balance. Before recording the mass of the leaves, the students must do which of the following?

A. Subtract the mass of the container
B. Add leaves from other plants to the container
C. Allow the leaves to settle in the container for a few days
D. Use a metric ruler to measure the volume of the container

Answers

Answer 1
11.) C. a graduated cylinder and water

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12.) D. observation

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13.) A. Subtract the mass of the container

Related Questions

In which environment would someone most likely find a living protist?
A on the outer layer of human skin
B inside a layer of rock
C underneath sand
D in a drop of lake water

Answers

A) on the outer layer of human skin

Oceans, ponds, and lakes are home to most plant-like protists. Single-celled or multicellular protists exist (many-celled). Multicellular, plant-like protists include seaweed and kelp. Therefore, option (D) is correct answer.

What are protists?

Any eukaryotic organism that is not classified as either an animal, a plant, or a fungus is referred to as a protist. In the wild, they can behave either autotrophically or heterotrophically. Their organelles are surrounded by membranes and they have nuclei in their cells (eukaryotic organisms). Examples are Plasmodium, slime mold, euglena.

Protists are important members of the ecological food web because they perform multiple roles, including those of primary producers, direct food sources, and decomposers. In addition, many protists are parasites of plants and animals, and they are capable of causing diseases that are fatal to humans as well as destroying crops that are of great value.

The majority of plant-like protists call the sea, ponds, or lakes their home. Protists can be unicellular (single-celled) or multicellular (many-celled).

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How do Eukaryotic cells differ from each other?

Answers

Answer:

Eukaryotic cells differ from each other due to their structure and function.

Explanation:

( I hope that helped.)

Eukaryotic cells differ from each other in their structure and function.

What is a eukaryotic cell?

A eukaryotic cell has a true nucleus surrounded by a membrane having genetic material.

A membrane-bound nucleus is a central cavity surrounded by a membrane that houses the cell's genetic material. A number of membrane-bound organelles and compartments with specialized functions float in the cytosol.

Cell types become distinct from one another as they synthesize and accumulate diverse sets of RNA and protein components, so different eukaryotic cells have different functions. A eukaryotic cell has a true nucleus surrounded by a membrane having genetic material.

Therefore different eukaryotic cells have diverse functions depending on size, and cytoplasmic content.

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Both aerobic and anaerobic respiration yield a net gain of ATP molecules to be used as energy for living things. The processes of _________ would yield the highest number of ATP.

Answers

Final answer:

Aerobic respiration yields the highest number of ATP, up to 38 molecules per glucose molecule. It is more efficient than anaerobic respiration, which only produces 2 ATPs per glucose. Despite being slower, aerobic respiration can sustain energy production for extended periods when fuel is available.

Explanation:

The processes of aerobic respiration would yield the highest number of ATP molecules. During aerobic respiration, if oxygen is available, it can yield a significant amount of ATP, approximately 36 to 38 molecules from one glucose molecule. Aerobic respiration is much more efficient in comparison to anaerobic respiration, which includes forms of fermentation where a net of only two ATPs is produced from a glucose molecule. Aerobic respiration takes place in the mitochondria and involves a series of chemical reactions which not only produce ATP but also release carbon dioxide and water as waste products.

It is also important to mention that aerobic respiration is slower but can sustain ATP production for hours as long as fuel is available, whereas anaerobic respiration is much quicker. This is why anaerobic respiration is beneficial for short bursts of energy such as in muscle cells during vigorous exercise when oxygen is limited. Still, due to the higher ATP yield, aerobic respiration is considered the primary method of energy production for aerobic organisms.

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When two carbohydrates monomers are linked, what is formed

Answers

Disaccharides are formed
Disaccharides>>>>>>>>>>>>>>>>>>>>>>>>>>

. Which of these statements is correct regarding the location of glycolysis and cell respiration? Both glycolysis and cell respiration occur in the mitochondria. Glycolysis occurs in the mitochondria; Cell respiration occurs in the cytoplasm. Glycolysis occurs in the cytoplasm; Cell respiration occurs in the mitochondria.

Answers

The correct answer is "Glycolysis occurs in the cytoplasm; Cell respiration occurs in the mitochondria."

Answer:

The answer is Glycolysis occurs in the cytoplasm; Cell respiration occurs in the mitochondria.

Explanation:

Glycolysis is the process by which cells acquire energy and occurs in the cell cytoplasm.

Cellular respiration is the process by which cells reduce oxygen and produce energy and water. These reactions are indispensable for cell nutrition. This process is carried out in the cellular mitochondria.

How much energy does a pair of 800w hair straighteners transfer every second?

Answers

For an 800 Watts hair straightener, the energy transfer per second would be 800 Joules.

A student sets up a compost bin outdoors. Inside the bin microorganisms convert the student’s vegetable and paper scraps into rich fertilizer.Which of the following best describes the role that these microorganisms play in natural habitats?
A The microorganisms help balance the numbers of producers and consumers.
B The microorganisms help keep nutrients cycling through the ecosystem.
C The microorganisms turn solar energy into sugars.
D The microorganisms function as autotrophs.

Answers

I believe the answer is D
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Cellulose is found throughout the cell walls of plant cells. Cellulose makes cell walls rigid, which indicates that cellulose is a

Answers

Hello There!

It is A carbohydrate. Carbohydrates are essential parts of the cells function.

Hope This Helps You!
Good Luck :) 

- Hannah ❤ 

Answer:

Cellulose is a complex carbohydrate that is a structural component of the plant cell.

Explanation:

Carbohydrate is a carbohydrate or polysaccharide which is the main component found in plant cell walls. Cellulose helps the plant to remain rigid and strong.

Cellulose is a linear or straight chain of a few hundred to many thousands of β linked D-glucose units. Cellulose makes up about 33% of all vegetable matter and is the most available of all naturally occurring organic compounds.

Thus, the correct answer is cellulose is a complex carbohydrate.

why can't we use seawater to irrigate our crops?

Answers

The salt in the water will dry out the plants leaving the plants more in need of water than before.
Final answer:

Seawater cannot be used to irrigate crops due to its high salt content. Plants are not able to tolerate high levels of salts, which can harm their cells and inhibit essential cellular functions. Freshwater or low-salt water sources are necessary for successful crop irrigation.

Explanation:

While some organisms have adapted to survive in highly salty conditions, most plants are not able to tolerate high levels of salts in their environment. The salt in seawater can harm plant cells and block essential cellular functions, leading to plant stress, reduced growth, and crop failure.

In addition, the salt in seawater can build up in the soil over time, making it unsuitable for plant growth. Saltwater irrigation can damage soil structure, decrease soil fertility, and affect the nutrient balance in the soil.

To successfully irrigate crops, freshwater or water with low salt content is needed. Access to safe freshwater sources is crucial for agricultural production and food security, particularly in regions where water scarcity is already a concern.

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The number of atoms changes during a chemical reaction.

True

False

Answers

false. the number of atoms never change, they just rearrange. 

-hope this helps

What must happen to igneous rock before it can change into sedimentary rock?
A. It must be broken down into sediment
B. It must melt and become magma
C. It’s minerals must be dissolved in water
D. It must be exposed to high pressure and temperature

Answers

A. It must be broken down into sediment

The process of forming sedimentary rock involves the weathering and erosion of existing rocks, which results in the formation of sediments. These sediments can then undergo compaction and cementation to eventually become sedimentary rock.

What are the parts of Earth's mantle? Inner core, asthenosphere, lithosphere Lithosphere, asthenosphere, mesosphere Crust, lithosphere, asthenosphere Mesosphere, asthenosphere, troposphere

Answers

i think its the lithosphere and asthenosphere.

Answer:

The correct answer is the lithosphere, asthenosphere, and mesosphere.

Explanation:

The above part of the core is considered as a mantle. This is basically rock containing iron, magnesium, silicon, oxygen, aluminum, and other minerals. The lithosphere is the top layer of the mantle and the crust, and form the very outer layers of Earth. The asthenosphere is the mechanically weak and easily deforming part of the upper Earth's mantle.

Mesosphere refers to the region of the Earth's mantle below the asthenosphere and the lithosphere, but above the outer core.

Thus, the correct answer is the lithosphere, asthenosphere, and mesosphere.

Please help! ♥

Which type of rock would be most likely to contain fossils?
A. igneous
B. sedimentary
C. metamorphic.

(They didn't have the topic I needed so I picked randomly).

Answers

Sedimentary rock because it is what composed most of the top layer of Earth’s surface and does not undergo physical changes. Hope this helps 
Sedimentary is the answer my parents are college science professors

What makes speed a compound unit is that it includes units for _____ and _____.

A. velocity; time
B. distance; time
C. distance; velocity
D. velocity; acceleration

Answers

the correct answer is B) distance and time 

how can rock layers tell the geologic history of an area

Answers

Well let's take Sedimentary rock for example, The Law of Superposition which measures the average age of Sedimentary rocks using rocks around it. So you would use that rocks below it are older and that Extrusions and Intrusions are younger than the rocks which are stable.

Which of the following is the bestdefinition of punishment? 

       A. An act done as the consequence of a behavior   B. An effective way to teach self-control   C. An ineffective way to reduce or change behaviors in the long term   D. Another word for goal

Answers

A. An act done as the consequence of a behavior
i would say A), answer choice B) would be wrong because its not always beneficial to people. Same thing vice versa with choice C), and common sense tell you its not a goal. Hope I could help

The greenhouse gas methane is released by cattle as a Product of their metabolism what effect would increase in cattle ranching be expected to have a c product of their metabolism what effect would increase in cattle ranching be expected to have on climate

Answers

The answer is; "increase in cattle ranching causes increase in temperature".
There are many green house gases and methane is one of those gases, it has effect on the climate but half less than the carbon dioxide. As a result of Cattle ranching , methane is released and with the increase of methane the temperature of climate increases.

Where are all your taste buds located (3 places), and where are MOST taste buds located (be specific)?

Answers

Your taste buds are found on the upper surface of your tongue, your soft palate, your upper esophagus, your cheeks, and your epiglottis and most of your taste buds are found on the upper surface of your tongue 

Which of Earth’s layers is made of melted materials

A.The crust

B.The inner core

C.The lithosphere

D.The outer core

Answers

D, the outer core. If you need extra info check Wiki.

Answer:

the outer core

Explanation:

what organisms break down chemical wastes in a treatment plant

Answers

Final answer:

Decomposers and recyclers, including bacteria, fungi, and protists, play a key role in breaking down chemical waste in treatment plants. They convert organic matter and pollutants into simpler forms, releasing essential nutrients back into the environment.

Explanation:

The organisms that break down chemical wastes in a treatment plant are primarily decomposers and recyclers, such as bacteria, fungi, and protists. These organisms obtain their nutrients from decaying organic matter, using their metabolic activity to release elements like carbon, nitrogen, and phosphorus back into the environment.Fungi, for instance, break down insoluble compounds like cellulose and lignin into absorbable particles, releasing these elements. Similarly, certain bacteria can degrade pollutants like hydrocarbons into smaller subunits or transform them into carbon dioxide. Protists, on the other hand, are often found in anaerobic environments where they contribute to the digestion of cellulose. Collectively, these organisms fulfill an essential role in wastewater treatment, aiding in the bio remediation process.

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Competitive exclusion does not result in _____.

A. destruction of a food resource
B. eviction of a population from a niche
C. extinction of a population
D. survival of both species

someone please answer :')

Answers

Competitive exclusion does not result in D. survival of both species. By its definition, competitive exclusion requires that a species or competitor be excluded through that competition, so it is impossible for both to survive.

The correct answer is the destruction of a food resource. It can't be D because this is just one population not the whole species so both species do survive. One population does go extinct but like I said not the whole species so it can't be C. Lastly one population does become extinct so a population is evicted from its niche. Leaving only A.

Which statement describes one way that RNA differs from DNA?

Answers

The nucleotides in RNA are ribonucleotides rather than deoxyribose like DNA

RNA also contains the base uracil unlike DNA

Answer:

DNA contains the bases Adenine Thymine Guanine and Cytosine, whereas RNA contains the bases Adenine Uracil Guanine and Cytosine.

Explanation:

DNA is an organic compound whose molecules contain the genetic instructions that coordinate the development and functioning of all living things and some viruses.  DNA genes are expressed through the proteins their nucleotides produce with the help of RNA.  DNA has the function of storing genetic information, controlling cellular activity and producing RNA.  It also has helical chains with thousands of nucleotides and its nitrogenous bases are cytosine, guanine, adenine and thymine.

On the other hand, RNA is a nucleic acid responsible for the synthesis of cell proteins. The various forms of RNA synthesize these proteins according to the information contained in DNA.  RNA has the function of synthesizing proteins and transferring information from DNA to the protein synthesis site in the cell.  Moreover, it has only one nucleotide-filled helical chain and its nitrogenous bases are cytosine, guanine, adenine and uracil.

____ are long, thin cells in the epidermal cell layer of roots

Answers

I think it’s root hair

I hope that helped

Which is the role of restriction enzymes?

Answers

“a restriction enzyme is an enzyme that cuts DNA after recognizing a specific sequence of DNA. You can think of restriction enzymes as molecular scissors. Scientists can use restriction enzymes to cut a single gene from a larger piece of DNA. ...They evolved in bacteria” (study.com)

so, they are used to cut DNA into smaller pieces(:

i think the answer is B. for e2020.

BETS ANSWER GETS BRAINLEIST!!!!!!!!!!!!

Answers

C) The number of primary consumers will increase because since the wolf snake and hawk are gone, there won't be anybody who will eat the primary consumers aka grasshopper and rabbit 

Hope this helps!
The primary consumers would increase

which is most effective as a barrier for polar substances

Answers

What are the answer choices?

Answer:

Explanation:

Furthermore, the most effective glycosylated compound is also far less ... In addition, effective strategies for breaching membrane barriers ...

appraise the importance of the role that plants play in the water cycle

Answers

Transpiration - They absorb water from the ground by their stems and then give this back out to the environment by their leaves

Plants are integral to the water cycle, regulating the flow of water from the ground to the atmosphere and back. Their role in this cycle is vital for maintaining water availability, ecosystem health, and the sustainability of life on Earth. The health and conservation of plant communities and ecosystems are essential for ensuring the continued functionality of the water cycle and the well-being of the planet.

In the water cycle, plants play a significant and diverse role. Their contributions are fundamental to the general health of this important Earth system. Key elements of their relevance are as follows:

Transpiration: The process of transpiration is how plants release water vapor into the atmosphere. Although it happens in plants, this process is comparable to human perspiration. Transpiration contributes to the air's increased humidity, which can result in the production of clouds and precipitation. This helps to restore freshwater resources, which are essential for both biological and human systems and can be found in lakes and rivers.

Water vapor from plants that has transpired eventually condenses into clouds and returns to the Earth's surface as precipitation. This includes rain, which is crucial for maintaining ecosystems, supplying drinking water, and providing farmland with moisture. Thus, plants have a direct impact on both the local and global water supplies.

Plants have a part in regulating the transport of water in soil through root uptake and soil moisture. Their roots draw moisture from the soil, which lowers the possibility of flow and erosion. Additionally, they aid in preserving soil moisture, which is necessary for plant growth and the survival of a wide range of species in the soil ecosystem.

Flood Protection: Plants can serve as natural barriers against flooding in locations with a lot of vegetation. They capture and hold more precipitation, lowering the possibility of flooding occurrences downstream. For instance, wetlands act as natural water reservoirs that may hold and gradually release water.

Plants aid in the passage of water into underground aquifers, which helps in groundwater recharge. Precipitation can eventually reach and replenish groundwater resources when it seeps into the soil and is absorbed by plant roots. Then, this groundwater can be used for irrigation, drinking water, and other uses.

Biodiversity and Ecosystem Health: In natural ecosystems, thriving plant communities provide vital habitat for a variety of species. These ecosystems are sustained by the water cycle, which also preserves their health and biodiversity. Then, this groundwater can be used for irrigation, drinking water, and other uses.

Biodiversity and Ecosystem Health: In natural ecosystems, thriving plant communities provide vital habitat for a variety of species. These ecosystems are sustained by the water cycle, which also preserves their health and biodiversity. These ecosystems may suffer as a result of changes to the water cycle.

In addition to their function in the water cycle, plants have a part in carbon sequestration. They aid in reducing climate change by absorbing carbon dioxide during photosynthesis, which can indirectly affect the water cycle by affecting temperature and weather patterns.

In conclusion, plants play a crucial role in the water cycle by controlling the movement of water from the ground to the atmosphere and back again. They are essential to this cycle's maintenance of water availability, ecosystem health, and the viability of life as we know it. The wellbeing of the world and the continuous operation of the water cycle depend on the health and preservation of plant groups and ecosystems.

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You need to cut down 3 trees to get to about 5 kilograms of bark. About how many tress do u have to cut down each year to make enough paclitaxel for 60,000 patients?

Answers

Should be 20,000 because if you divide 60,000 and 3 that leaves you with 60,000 (I'm not 100% on that but give it a try and if not try 60,000 divided by 5 :)) sorry if I'm not right )

Final answer:

To produce enough paclitaxel for 60,000 patients, approximately 21,600 trees need to be cut down each year, based on the requirement of 600 g of starting material for a single 300 mg dose of paclitaxel.

Explanation:

To calculate how many trees must be cut down each year to make enough paclitaxel for 60,000 patients, we need to consider the dose required along with the efficiency and starting material for the drug synthesis. Based on the information provided, for a single 300 mg dose of taxol (paclitaxel), 600 g of starting material is needed. If we need to treat 60,000 patients and each patient requires one dose, we need a total of 60,000 × 600 g of starting material.

The total starting material required would be 36,000,000 g or 36,000 kg. Knowing that 3 trees yield approximately 5 kg of bark, we can calculate the number of trees needed as follows:

Number of trees = (Total starting material in kg) / (Bark per 3 trees) × 3 trees
Number of trees = 36,000 kg / 5 kg × 3 trees
Number of trees = (36,000 / 5) × 3
Number of trees = 7,200 × 3
Number of trees = 21,600

Therefore, to produce enough paclitaxel for 60,000 patients, approximately 21,600 trees need to be cut down each year.

Which feature provides structure and form to plants? A. Plants have an exoskeleton, like insects. B. Plants have an internal skeleton of bones. C. Plants have rigid tubes made of cellulose. D. Plants have an external covering that keeps them upright.

Answers

The cell wall that gives the plant structure is made out of cellulose, so C would be the best answer for this one.

Hope this helps!

Plants have rigid tubes made of cellulose.

The rigid tubes in plants is known as the cell wall.  This is a semi permeable layer located at the extreme of the plasma membrane and comprises majorly of cellulose together with pectin, lignin, and  protein. The functions of the cell wall includes

Provision of rigid structure,Prevent attack from predatorsActs  as food reservoir.  Supports intercellular transports

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in this process, which occurs in plants and animals, sugar and oxygen join to produce water, carbon dioxide, and energy. what is this process?

Answers

The process is Photosynthesis

Answer:

This proccess is known as Photosynthesis

Explanation:

Photosynthesis occurs in plants where they then combine water and carbon dioxide to make sugars with is what plant use as food.Plants also give off oxygen during this process.

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