Answer:
Hello. You don't know what this question refers to, but the regions of the rivers that have more nutrients are those that have a lot of algae and vegetables and few fish and marine animals in general.
Explanation:
The accumulation of nutrients in rivers, mainly nitrogen and phosphorus, stimulates the primary production of this environment, which is represented by the excessive growth of algae and other vegetables, which often end up dominating the entire surface of the river. This is very harmful for aquatic animals as it decreases the oxygen concentration of the river, leading to the death of several animals, especially fish. For this reason, we can say that the areas with the most nutrients in a river will have a large number of algae and a low number of fish.
PLEASE HELP!! give legit answer plssss
Key Questions and Terms Notes
What types of muscles are in the body?
What are muscles?
What's the difference between voluntary muscles and involuntary muscles?
What are the different types of muscle tissue?
How do skeletal muscles work?
What five functions does the skeleton perform?
The backbone is made up of 26 small bones called ___________.
What are the characteristics of bones?
What role do joints play?
What are the two types of joints?
What are ligaments?
What is the role of the nervous system?
Which parts of the body make up the central nervous system?
Name the two main categories of the nervous system.
How do the muscular, skeletal, and nervous systems work together to maintain homeostasis?
What do sensory neurons do?
What do motor neurons do?
Nervous System Video:
Word Bank: brain, instincts, interpreted, organs, reflexes, spinal cord, senses Notes
The central nervous system includes the _______ and _______.
Signals from _______ and the body's _______ are received by the brain and the spinal cord.
Once signals are processed and _______ by the central nervous system, a response is sent back to the body.
A central nervous system is also responsible for programming _______ and _______.
Paraplegic Will Walk Again with Exoskeleton at the World Cup Video:
Key Questions and Terms Notes
What animal did scientists study to create the brain–machine interface?
What does the exoskeleton use to power its movements?
What is the importance of this research?
Answer:
Answer B
Explanation:
Plato
___________ is the splitting of the cytoplasm
A. mitosis
B. interphase
C. m-phase
D. cytokinesis
Answer:
Cytokinesis is the splitting of the cytoplasm.
Explanation:
Option D is correct.
based on your understanding of the mechanism of action of dnp, how dangerous do you think dnp really is?
DNP is a chemical precursor and biochemically active, decoupling oxidative phosphorylation from of the electron transport chain in cells containing mitochondria by enabling protons to move from the intermembranous region into the mitochondrial matrix.
Oxidative phosphorylation seems to be a highly controlled phase in aerobic respiration that is restricted by normal physiological ATP levels, among other things. When it is uncoupled, chemical energy from nutrition and energy storage such as triglycerides is squandered as heat with no management, resulting in dangerously high body temperatures that can lead to heatstroke.
Its usage as a diet aid has been linked to serious negative effects, including many fatalities. DNP is a chemical mixture that was widely employed in a variety of industrial operations in the early twentieth century. An American researcher found in 1933 that when taken by people, DNP greatly increases metabolism, resulting in fast weight reduction. One of the dangers of DNP is that it speeds up the metabolism to dangerously high levels.
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Which statement best describes the role of transfer RNA in protein synthesis?
O Transfer RIHA carries a copy of the DNA base sequence to the cytoplasm.
O Transfer RNA matches up amino acids with the base sequence copied from DNA.
O Transfer RNA composes the ribosome on which the protein forms.
O Transfer RNA brings nucleotides to make a copy of the DNA base sequence.
Answer:
Transfer RNA matches up amino acids with the base sequence copied from DNA.
Answer:
B.Explanation:
Edg. 2020 other guy is correct
You are studying a sample of igneous rock. The rock formed within Earth’s crust. The sample contains a very high concentration of dark-colored, high-density minerals. Classify the rock by type and composition.
The rock formed within Earth’s crust. The sample contains a very high concentration of dark-colored, high-density minerals is rhyolite.
Classification of rocksAn igneous rock that was extruded is rhyolite. The volcanic eruption is what creates it. Glassy-looking is how this rock appears. This rock has very fine grains. Its pale tint, which can be either pink or gray, is caused by its small grain size and silica deposition. Quartz, sanidine, plagioclase, biotite, and other dark-colored mineral particles are also included. Gases are trapped within this rock as well. The shape and look of the rock are crystalline. The rhyolite rock's pale tint is also a result of the mafic minerals' low concentration.Among volcanic rocks, rhyolite has the highest silica content. Its texture is often glassy or fine-grained, but it can also be porphyritic, which means that it contains bigger mineral crystals within a groundmass that is primarily composed of finer crystals.For more information on rhyolite kindly visit to
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which of the following is not a feature of natural selection?
Answer:
naturally living organisms
Corn snakes show variety in their skin color pattern. While the complete genetics of corn
snake color are complex, the most common colors on normal corn snakes—red and
black— are each coded by one gene.
For the red gene, the allele for the presence of red pigment (R) is dominant and the allele
for the absence of red pigment (r) is recessive. Likewise, for the black gene, the allele for
the presence of black pigment (B) is dominant and the allele for the absence of black
pigment (b) is recessive.
a. Draw the Punnett square for the cross of a snake that is homozygous dominant for
the red color with a snake that is heterozygous for the red color. What percentage
of the offspring is expected to have red pigment in their skin?
b. Draw the Punnett square for the cross of two snakes that are heterozygous for the
black color. What percentage of the offspring are expected to have black pigment
in their skin?
c. The parent snakes in part (b) that are heterozygous for black color are both
homozygous recessive for the red gene. Each parent has genotype rr for the red
gene. Based on this information, what percentage of their offspring are expected
to lack both the red and black pigments in their skin? Explain your reasoning.
Answer:
a. Punnett square for the cross of a snake that is homozygous dominant for the red color (RR) with a snake that is heterozygous for the red color (Rr):
```
| R | R |
----------------
| RR | RR | RR |
----------------
| Rr | Rr | Rr |
```
In this cross, all the offspring (100%) will have the red pigment in their skin because the presence of red pigment (R) is dominant over its absence (r).
b. Punnett square for the cross of two snakes that are heterozygous for the black color (Bb):
```
| B | b |
----------------
| BB | BB | Bb |
----------------
| Bb | Bb | bb |
```
In this cross, 75% of the offspring are expected to have black pigment in their skin (BB and Bb genotypes), and 25% of the offspring are expected to lack black pigment (bb genotype) due to the absence of the dominant black allele (B).
c. Both parent snakes are homozygous recessive for the red gene (rr), meaning they lack the red pigment. Since the red gene and black gene are independent of each other, the absence of red pigment does not affect the inheritance of the black pigment. Therefore, the percentage of offspring expected to lack both red and black pigments in their skin would be the same as the percentage of offspring lacking the black pigment (bb genotype) in the Punnett square from part (b). Thus, 25% of their offspring are expected to lack both the red and black pigments in their skin.
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Answer:
Metamorphic for first
Igneous for secomd
Sedimentary for third
Explanation:
Pls vote me as brainlest!
First one is igneous rocks
Second one is metamorphic rocks
The third one is sedimentary rocks
Consider an experiment in which starch is dissolved in a liter of water. Some of the solution is placed into a securely tied dialysis bag. The dialysis bag is placed into a beaker containing distilled water and iodine for 30 minutes. What are the correct answers for the questions below? (Note: Iodine reacts with starch to create a black/purple color.)How do substances enter or leave the dialysis bag?A.The dialysis bag is permeable to iodine so it can move into the bag but is not permeable to starch.B.There is a leak in the bag allowing starch to flow out.
The correct answer is: The dialysis bag is permeable to iodine so it can move into the bag but is not permeable to starch. So, option A is accurate.
In the given experiment, the dialysis bag is selectively permeable, which means it allows certain substances to pass through while preventing the passage of others based on their molecular size and properties. In this case, the dialysis bag is permeable to iodine, allowing it to move into the bag. However, the dialysis bag is not permeable to starch, so starch molecules will be unable to pass through the bag. Therefore, the iodine will react with the starch within the bag, resulting in the formation of a black/purple color.
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Name the following:
The cell that covers a large area and is broad and flat in shape.
Answer:
skin is the answer please and brainlest pleaaasssseeee
What does the primary structure of a protein refer to?.
Answer: The linear order of acids (amino)
During prometaphase, which protein complex on each sister chromatid attaches to the spindle?.
Each sister chromatid uses a protein complex termed the kinetochore to connect to spindle microtubules at the centromere.
Sister chromatids are bound to one another during mitotic prometaphase, but why?Cohesion is necessary for sister chromatids to stay together during mitosis and meiosis until separation is about to occur at anaphase. Cohesins are multiprotein component complexes that help create cohesion during DNA replication prior to mitosis and meiosis.
During prometaphase, where do microtubules bind to sister chromatids?kinetochoresThe production of a protein structure known as a kinetochore around the centromere, the central region connecting the sister chromatids, is another significant process that occurs during prometaphase. Kinetochore microtubules are lengthy protein filaments that extend from the cell's poles at each end and connect to the kinetochores.
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Which mechanism allows lipid-soluble substances to move through the membranes of endothelial cells of capillaries
Answer:
Diffusion.
Explanation:
The mechanism that allows lipid-soluble substances to move through the membranes of endothelial cells of capillaries is simple diffusion.
Simple diffusion is a passive transport mechanism that allows lipid-soluble substances to move across the membranes of endothelial cells in capillaries. This process occurs down a concentration gradient, from an area of higher concentration to an area of lower concentration, without the need for energy expenditure.
The membranes of endothelial cells, which make up the walls of capillaries, are composed of a lipid bilayer. Lipid-soluble substances, such as oxygen, carbon dioxide, steroid hormones, and certain lipid-soluble drugs, can readily diffuse through this lipid bilayer due to their ability to dissolve in and pass through the hydrophobic interior of the membrane.
Unlike lipid-soluble substances, water-soluble substances, such as ions and polar molecules, are unable to passively diffuse through the lipid bilayer. Instead, they rely on specific transport mechanisms such as facilitated diffusion or active transport to cross the endothelial cell membrane.
In the context of capillaries, simple diffusion allows lipid-soluble substances to move from the bloodstream through the endothelial cell membranes and into surrounding tissues or vice versa. This process plays a crucial role in the exchange of gases, nutrients, and waste products between the bloodstream and the tissues.
It is important to note that while simple diffusion allows for the passage of lipid-soluble substances, the movement of these substances can also be influenced by factors such as concentration gradients, molecular size, solubility, and the presence of transport proteins. However, the primary mechanism by which lipid-soluble substances traverse the endothelial cell membranes of capillaries is through simple diffusion.
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Anyone help please lord please
Answer:
Explanation:
Gram positive stains are purple; gram negative are pink; cocci bacteria are spherical; the other is rod. There you go!
Question 1 (1 point)
Which of the following explains how density dependent factors can
slow population growth?
There are more births in the population.
There are more deaths in the population.
There are more births and deaths in the population.
There are fewer births and deaths in the population.
What is the purpose of splitting water in PS2 of the light dependent reaction
Answer:
to get hydrogen ions
Explanation:
Answer:
something about a playstation 2
Explanation:
The city of Green Valley, Arizona, is trying to determine where to locate a new fire station. The fire station is expected to serve four neighborhoods.
Neighborhood X coordinate Y coordinate Number of homes
Birchwood 0.5 3.5 172
Cactus Circle 2 0.5 42
De La Urraca 3 1.5 223
Kingston 3 1 44
a The X* coordinate of the weighted center of gravity for the new fire station is _____. Enter your response to 2 decimal places.
b. The Y* coordinate of the weighted center of gravity for the new fire station is _____. Enter your response to 2 decimal places.
c. What other factors might come into play when making the final decision?
a. Zoning Considerations
b. Distance from other fire stations
c. Available space
d. All of the above.
(a) The X* coordinate of weighted center of gravity for new fire station is 1.82. (b) The Y* coordinate of weighted center of gravity for new fire station is 2.06. (c) The factors might come into play when making the final decision is Zoning Considerations, Distance from other fire stations, Available space. Option D is correct.
To determine the location for the new fire station in Green Valley, we need to calculate the weighted center of gravity based on the coordinates and the number of homes in each neighborhood.
The X* coordinate of the weighted center of gravity can be calculated using the formula;
X* = (X₁ × N₁ + X₂ × N₂ + X₃ × N₃ + X₄ × N₄) / (N₁ + N₂ + N + N₄)
where X₁, X₂, X₃, X₄ are the X coordinates of the neighborhoods, and N₁, N₂, N₃, N₄ are the number of homes in each neighborhood.
Using the given data:
X* = (0.5 × 172 + 2 × 42 + 3 × 223 + 3 × 44) / (172 + 42 + 223 + 44)
X* ≈ 1.82
Therefore, the X* coordinate of the weighted center of gravity for the new fire station is approximately 1.82.
The Y* coordinate of the weighted center of gravity can be calculated using the same formula, replacing the X coordinates with Y coordinates:
Y* = (Y₁ × N₁ + Y₂ × N₂ + Y₃ × N₃ + Y₄ × N₄) / (N₁ + N₂ + N₃ + N₄)
Using the given data:
Y* = (3.5 × 172 + 0.5 × 42 + 1.5 × 223 + 1 × 44) / (172 + 42 + 223 + 44)
Y* ≈ 2.06
Therefore, the Y* coordinate of the weighted center of gravity for the new fire station is approximately 2.06.
When making the final decision on the location of the fire station, several other factors might come into play;
Zoning Considerations: The city needs to consider any zoning regulations or restrictions that might limit the potential locations for the fire station.
Distance from other fire stations: The proximity to existing fire stations is an important factor to ensure efficient coverage and response times across the area.
Available space: The availability of suitable land or buildings that meet the requirements for a fire station, such as accessibility, size, and infrastructure, should be considered.
Ultimately, the decision should take into account a combination of factors, including zoning considerations, distance from other fire stations, and available space. This comprehensive approach ensures that the fire station is strategically located to serve the four neighborhoods effectively and efficiently.
Hence, D. is the correct option.
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t human activities have affected the phosphorous cycle? i. creation of fertilizers ii. decline of wetland areas iii. use of dishwashing detergent
Human activities that have affected the phosphorous cycle are the creation of fertilizers and use of dishwashing detergent.
What is phosphorous cycle?Soluble phosphorus in the soil solution interacts with Ca in calcareous soils to create low solubility Ca phosphates. The biogeochemical cycle that details the change and transport of phosphorus in soil, water, and living and dead organic material is known as the Phosphorus Cycle. The phosphorus cycle is the flow of phosphorus from where it is contained in rocks into the environment and, eventually, into the plants and animals that require it. Rain and the freezing and thawing of rocks erode or break them down over time. As they dissolve, phosphorus is released into the soil and water. One example of a biogeochemical cycle is the phosphorus cycle. The cycling of elements through organisms and the environment is referred to as biogeochemical cycling.
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another question like i searched it and it said 6 to ten weeks i do not have that so please answer this question for me.
Hogs are taken to the processing plant when they reach
A. Three to four months of age
B.Four to six months of age
C.Nine months of age
D.One year of age
Hogs are taken to the processing plant when they reach four to six months of age. Therefore, option (B) is correct.
To assure meat quality and market readiness, hogs are processed at a specified age. Breed, growth rate, and market demand determine the age at which hogs are processed.
Three- to four-month-old hogs are still immature and may not have reached the weight and development needed for processing. Hogs are usually processed at four to six months of age, option B. Options C and D, nine months and one year old, are less likely since older hogs may lower meat quality.
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Can someone help? 40 points <3
Answer:
Please see following
Explanation:
Step 1: glycolysis
cuts glucose in half to create pyruvate
makes 2 atp
step 2:
If oxygen is available, then process: cellular respiration
occurs in the: mitochondria
is oxygen is not available, then: process- fermentation
which does not use oxygen so: anaerobic
occurs in the: cytoplasm
occurs in yeast cells products: alcohol
occurs in muscle cells: lactic acid
hope this helps!
compare and contrast between pyriformis and fibula.Pls give right answer
Answer:
Tibia and fibula are the two long bones located in the lower leg. The tibia is a larger bone on the inside, and the fibula is a smaller bone on the outside. The tibia is much thicker than the fibula.
A glacial moraine is best described as
1.
unsorted sediment directly deposited by a glacier
2.
sorted sediment deposited as the glacier melts
3.
a body of water formed by a retreating glacier
4. an elongated hill composed of sand and formed by a retreating glacier
Answer:
3
because it forms water after its get colled .
A glacial moraine is best described as:
Unsorted sediment directly deposited by a glacier.
A glacial moraine refers to a landform or feature that is created by the deposition of sediment carried and transported by a glacier. As a glacier moves, it picks up and transports various sizes and types of sediment, including rocks, boulders, sand, and clay. When the glacier eventually melts or retreats, it deposits this unsorted mixture of sediment, creating a glacial moraine.
A glacial moraine typically appears as a ridge or mound of mixed and unsorted sediment, with varying sizes and shapes of rocks and debris. It can be found along the sides, front, or middle of a glacier, representing the accumulated material that the glacier has transported and left behind.
Therefore, option 1, "unsorted sediment directly deposited by a glacier," best describes a glacial moraine.
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Identify the organelle *
1 point
Outer membrane
Inner membrane
Crista
Matrix
DNA
ma
O Ribosome
O Mitochondria
Ο Ο Ο Ο
Nucleus
O Chloroplast
Explanation:
Mitochondria
hope it helps u
what is a weakness or limitation for using orbeez as a model for a cell?
Answer:
You cant make the organells that detailled or make them at all for that matter?
Explanation:
What is included in the climax community?
Answer:
red wood and spruce
Explanation:
A fish farmer has a large pool used to grow a species of fish. The farmer decides to add a second species of fish to the pool. Both fish species feed on the same type of food, but the fish farmer does not increase the amount of food added to the pool, maintaining the same carrying capacity in the pool.
Which graph shows how the population of the two fish species will change?
Answer:
D
Explanation:
many of the antiviral drugs currently used to treat hiv/aids also interfere with an enzyme that helps mitochondria multiply. treatment can therefore result in a decrease in the number of mitochondria found in certain tissues. given this information, what might you expect to see in patients treated with antiviral drugs?
The patients treated with antiviral drugs might experience mitochondrial toxicity. There might be some possible adverse effects such as metabolic disorders, fatigue, loss of energy, and muscle weakness. Antiviral drugs have been found to interfere with mitochondrial functioning leading to mitochondrial toxicity, which results in severe consequences for the patient's health.
Antiviral drugs can interfere with an enzyme that helps mitochondria multiply. The treatment can result in a decrease in the number of mitochondria found in certain tissues. Given this information, patients treated with antiviral drugs may experience mitochondrial toxicity.
Mitochondria are the powerhouse of the cell. They are involved in the production of energy (ATP). There is a possibility of mitochondrial toxicity in patients treated with antiviral drugs that interfere with the functioning of mitochondria, which results in a decrease in the number of mitochondria found in certain tissues. This can cause a severe reduction in the production of ATP and thereby affect the energy balance of the cell.
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In 1989, the total land area of Singapore was 626.4 km2. By 2013, it was
716.5 km2. By how many square kilometers did Singapore grow from
1989 to 2013?
Which leads reflect ischemic changes in the right coronary artery?
Leads II, III, and aVF reflect ischemic changes in the right coronary artery. The leads II, III, and aVF are known as the inferior leads in an electrocardiogram (ECG).
These leads specifically monitor the electrical activity of the heart's inferior wall, which is primarily supplied by the right coronary artery (RCA). Ischemic changes in the RCA can be detected by observing abnormalities in these leads.
The RCA is responsible for supplying blood to the inferior part of the heart, including the inferior wall and the posterior part of the septum. When there is a blockage or reduced blood flow in the RCA due to ischemia, it can lead to changes in the ECG recordings of the inferior leads (II, III, and aVF).
These changes may include ST-segment depression, T-wave inversion, or the development of pathological Q-waves, indicating myocardial ischemia or infarction in the area supplied by the RCA.
Therefore, by analyzing the ECG findings in leads II, III, and aVF, healthcare professionals can identify and assess the presence of ischemic changes in the right coronary artery territory, providing valuable diagnostic information for patient care.
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First person to help get brainliest
what might an engineer need to consider when designing a heating/cooling system for a home in a cooler climate?
How might the design differ for a house found in a warmer climate?
An engineer might need to use passive construction when designing a heating and cooling system for a home in cooler climate and hot climates.
The engineers should ensure that he constructs a passive housing system. Windows in the living room must face true south or within 30 degrees of it according to passive design.
Any way of heating or cooling a home that doesn't involve energy input from the occupants or a mechanical device is considered passive heating and cooling.
To use passive heating, all of your doors and windows must be absolutely airtight. You should have double-paned or triple-paned windows since badly built ones will allow the heat from the sun to just flow back out. The ability of the window to retain internal heat and keep out outside air improves with the number of layers of glass.
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