A student hypothesizes that a goldfish will be more active in a bowl that has red gravel than in a bowl of grey gravel. To get this hypothesis, the student places one goldfish in a bowl with red gravel and another goldfish in a bowl with grey gravel. The color of the gravel is the ______
Variable in the experiment.

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.

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.

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.

Learn more about  eukaryotic cells, here:

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i think the answer is B. for e2020.

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.

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.

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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Answer:

Explanation:

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

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.

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.

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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Answer:

non renewable

Explanation:

It cannot be renewed until thousands of years.

Answer:

For erythropoesis/ RBC production, anaemia

Explanation:

Our body needs a constant supply of blood. The blood contains haemoglobin which is a respiratory pigment and a conjugated protein. It contains iron and globin protein. This iron-containing pigment supplies more oxygen to the tissues and gives red colour to the blood. The deficiency of iron or this haemoglobin pigment in the blood leads to anaemia. The iron pigment or haem pigment of haemoglobin increases the carrying capacity of oxygen. Our body tissue needs oxygen for metabolism.We get iron from foods and these irons play an important role in RBC production in the bone marrow.

Answer:

hot and dry summers

mild winters

most rain comes in winter

Explanation:

this is what edge 2020 is looking for.

hope this helps

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.

Answer:

the outer core

Explanation:

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.

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.

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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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.