Answers
Answer:
Point-source pollutants.
Explanation:
Point-source pollutants are emitted from single identifiable sources. For instance, untreated waste water from a particular oil refinery or factory is a point-source pollutant.
Related Questions
What new knowledge was gained from Frederick Griffiths work with pneumococci bacteria
Answers
Answer:The new knowledge gained from Frederick Griffith's work with pneumococci bacteria is that bacteria contain a physical substance that can change the structure of other bacteria. Therefore, option 3 is the correct answer.
Explanation:
According to the blending concept, short flowers crossed with tall flowers should produce all ______ flowers.
Answers
According to the notion of blending, blooms of all intermediate heights should result from crossing short and tall flowers.
What does blending mean?Blending refers to the expression in offspring of phenotypic characteristics (such as pink flower color from red and white parents) intermediate between those of the parents as well as inheritance in a now-discredited theory in which the genetic material of offspring was held to be a uniform blend of that of the parents.
Blending is carried out before to spinning and is done to add desirable qualities like strength or durability, to cut costs by combining expensive fibers with less expensive varieties, or to generate specific color or texture effects. Blends are the term for materials constructed from such fibers.
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what is the purpose of the micro filament formation that makes the mitotic spindle
Answers
Answer:
The mitotic spindles formed during prophase are composed of microtubules and have a ropelike structure. The function of the mitotic spindle is to help to equally divide the chromosomes in the parent cell to ensure that equal, identical copies are found in both daughter cells after mitosis is complete.
Explanation:
Which is a better estimate for the weight of an earthworm?
3 grams
Submit
3 kilograms
Answers
Answer:3 grams
Explanation:
please help me please
and explain why
1) The treatment of viral-associated lymphadenopathy is based on:
A. controlling symptoms and preventing complications instead of providing specific
antiviral therapies
B. administration of beta-lactamase–resistant antibiotics and drainage of purulence when fluctuation is present.
C. complete excision of the involved node because incision and drainage may lead to a chronically draining sinus.
D. administration of rifampin and isoniazid.
E. supportive; however, if the symptoms are severe, antibiotics may be used.
2) The treatment of bacterial-associated lymphadenopathy is based on :
A. controlling symptoms and preventing complications instead of providing specific
antiviral therapies.
B. complete excision of the involved node because incision and drainage may lead to a chronically draining sinus.
C. administration of beta-lactamase–resistant antibiotics and drainage of purulence when fluctuation is present.
D. administration of rifampin and isoniazide
E. supportive; however, if the symptoms are severe, antibiotics may be used.
Answers
1) The treatment of viral-associated lymphadenopathy is based on: B. administration of beta-lactamase–resistant antibiotics and drainage of purulence when fluctuation is present.
2) The treatment of bacterial-associated lymphadenopathy is based on : B. complete excision of the involved node because incision and drainage may lead to a chronically draining sinus.
What medical interventions are used for lymphadenopathy?Antibiotics are the most typical therapy for lymph nodes that have enlarged due to a bacterial infection. You will undergo specialised therapy if your enlarged lymph nodes are brought on by an HIV infection.
An oral, broad-spectrum antibiotic is now the recommended course of treatment for those with acute cervical lymphadenitis. Patients with suspected MRSA should be treated with clindamycin or trimethoprim and sulfamethoxazole (methicillin-resistant Staphylococcus aureus).
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Sara and Juan conducted an experiment to test which soil would be BEST for growing plants. They planted bean seeds in four pots and placed the pots in the sunlight. Each pot had a different type of soil. They used all three types of soil seen in the jar: sand, silt, and clay. They also made a mixture of soil using equal parts of sand, silt, and clay. Once the seeds were planted, they watered the pots every day and tracked the seed germination and plant growth.
What was the dependent variable in the experiment?
Answers
The dependent variable in the experiment conducted by Sara and Juan to test which soil is best for growing plants is likely the plant growth or the plant's response to the different types of soil.
This variable is dependent on the independent variable, which is the type of soil (sand, silt, clay, or the mixture) used in each pot. By observing and measuring the plant growth, they can determine which type of soil yields the best results in terms of seed germination and overall plant growth.
It's important to note that the dependent variable can vary depending on the specific focus of the experiment. In this case, since the aim is to determine the best soil for growing plants, the growth and development of the plants would be a relevant measure.
Other possible dependent variables could include factors like plant height, leaf size, number of leaves, or even the number of flowers or fruits produced. The specific measure chosen as the dependent variable would depend on the objectives and hypothesis of the experiment.
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How do ATP and NAPDH connect light-dependent and light-independent reactions in photosynthesis
Answers
ATP and NADPH serve as key molecules that connect the light-dependent and light-independent reactions in photosynthesis. They play crucial roles in transferring energy and reducing power between the two processes, ensuring the overall efficiency of photosynthesis.
1. Light-Dependent Reactions: These reactions occur in the thylakoid membranes of the chloroplasts and convert light energy into chemical energy. During this process, light energy is absorbed by chlorophyll and other pigments, leading to the generation of ATP and NADPH.
2. ATP Generation: The absorbed light energy is used to power the electron transport chain, which pumps protons across the thylakoid membrane, creating a proton gradient. The flow of protons back across the membrane through ATP synthase generates ATP from ADP and inorganic phosphate.
3. NADPH Generation: Simultaneously, the energized electrons from the electron transport chain are transferred to NADP+, reducing it to NADPH. This process requires the input of high-energy electrons and protons.
4. Light-Independent Reactions (Calvin Cycle): ATP and NADPH generated during the light-dependent reactions are utilized in the stroma of the chloroplasts to fuel the Calvin cycle. Here, carbon dioxide is fixed and converted into glucose through a series of enzymatic reactions.
5. ATP Utilization: ATP provides the necessary energy to power the various enzyme-catalyzed reactions in the Calvin cycle. It is used to drive the carboxylation of ribulose bisphosphate (RuBP), the regeneration of RuBP, and other key steps in the cycle.
6. NADPH Utilization: NADPH functions as a reducing agent in the Calvin cycle, providing the necessary high-energy electrons to convert carbon dioxide into glucose. It acts as a source of electrons in the reduction of 3-phosphoglycerate to glyceraldehyde 3-phosphate (G3P).
7. Recycling of ADP, NADP+, and Pi: As ATP is hydrolyzed to ADP and inorganic phosphate (Pi) during the Calvin cycle, ADP and Pi are regenerated in the light-dependent reactions. Similarly, NADP+ is regenerated from NADPH.
8. Continuous Cycle: The production of ATP and NADPH in the light-dependent reactions and their utilization in the light-independent reactions create a continuous cycle, ensuring the flow of energy and reducing power required for photosynthesis.
In summary, ATP and NADPH act as energy and reducing power carriers, respectively, connecting the light-dependent reactions that capture light energy with the light-independent reactions that utilize this energy to produce glucose. Their continuous generation and utilization ensure the efficiency and functionality of photosynthesis.
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Soil could be _____ or ______ depending on it's location
Answers
Answer:
wet or dry depending on its location
Explanation:
Cancer is subject to evolution due to: Question 25 options: A) Gene flow B) Tumor cells experiencing a bottleneck event due to chemotherapy C) Natural selection and competition between cells of two different tumors D) Natural selection and competition between cells of the same tumor
Answers
What is the answer to the screenshot below for 20 points
Answers
Answer:
The Ventral (anterior) trunk.
Explanation:
Generally speaking, the anterior/ventral ramus innervates the skin and muscle on the anterior aspect of the trunk.
!DISCLAIMER! I am not 100% sure on this.
Nerve cells look very different from red blood cells. Nerve cells transmit nerve impulses through the body. Red bloood cell carry oxygen in the blood. Why are the cell types different?
A.the cell types are the results of different proteins that are determined through gene expression
B. The cell types are determined based on the number of division they go through
C. The cell types are differentiated when they arrived at their location in the body
D. The cell types are the result of different replication errors which are passed onto daughter cells
Answers
describe one similarity and one difference between fungi and plants
Answers
Explanation:
Both the plant and fungus kingdoms have some common characteristics. ... While both are eukaryotic and don't move, plants are autotrophic - making their own energy - and have cell walls made of cellulose, but fungi are heterotrophic - taking in food for energy - and have cell walls made of chitin.
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Complete the sentence. ____________ water can dissolve more substances than __________ water.
A) Slow-moving; Fast Moving
B) Shallow; Deep
C Fresh; Salt
D) Cold Warm
I know it's not A or D, But I can't really tell the difference between B or C. Just needing a fresh pair of eyes!
Answers
Looking at the Punnett square, list the possible phenotypes and frequencies of
Martha and John's children? *
A
a
a
Аа
аа
а
Аа
аа
Your answer
Answers
Answer:
Phenotypes:
Aa with a frequency of 2
aa with a frequency of 2
The children have equal chances of having aa or Aa
Which statement about thermal energy is true?
Responses
Thermal energy is a measure of the movement of a substance's molecules.
Thermal energy is a measure of a substance's specific heat.
Thermal energy is a measure of a substance's vaporization.
Thermal energy is the same as a substance's temperature.
Answers
Answer:
Option A
Thermal energy is a measure of the movement of a substance's molecules.
Answer:
A
Explanation:
because i took the same test and it was right for me.
Four equal strips A B C and D were cut from a potato whose cell sap concentration was 28.5%sugar. The strips were placed in sugar solutions of different concentrations as follows;A-10%,B-15%,C-25%,D-35%. 1.What changes would you expect in strips A and D? 2.Account for the changes in A and D.
Answers
Answer: The concentration of sugar in solution D is 35%. Solution D is a hypertonic solution as the solute concentration is more than the potato cell concentration. Therefore, water will move into the cell to equalize the osmotic pressure gradient between the cell and the solution. Hence, strip D will swell.
Explanation:
What is the definition of Dissolved Oxygen and why is dissolved oxygen important for water quality?
Answers
Answer:
Dissolved oxygen refers to the level of free, non-compound oxygen present in water or other liquids. It is an important parameter in assessing water quality because of its influence on the organisms living within a body of water
Adenosine slows down neuronal, so adenosine is what?
Answers
Answer:
Caffeine?
Explanation:
Pistil is the male reproductive part of the plant.
True or false?
Answers
Answer:
false bestie, that's a women's
Answer:
false
Explanation:
3. How is Acetyl-CoA prsluced during the acrobic oxidation of carbohydrates, and what happens to it? How is it produced during the aerobic oxidation of titty acids, and what happens to it
Answers
During the aerobic oxidation of carbohydrates, acetyl-CoA is produced through a series of metabolic reactions known as glycolysis and the citric acid cycle. During the aerobic oxidation of fatty acids, acetyl-CoA is produced through a process called beta-oxidation.
Pyruvate then enters the mitochondria, where it undergoes further processing to produce acetyl-CoA. This conversion occurs through a process called pyruvate decarboxylation, where pyruvate loses a carbon dioxide molecule and combines with coenzyme A (CoA) to form acetyl-CoA. Acetyl-CoA is a key molecule in energy metabolism and serves as a precursor for the citric acid cycle.
During the aerobic oxidation of fatty acids, acetyl-CoA is produced through a process called beta-oxidation. Fatty acids are broken down into two-carbon units, which then combine with CoA to form acetyl-CoA. This process occurs in the mitochondria, where fatty acids are sequentially cleaved into acetyl-CoA molecules. The acetyl-CoA molecules can enter the citric acid cycle to generate energy through oxidative phosphorylation.
Once acetyl-CoA is produced, it enters the citric acid cycle, also known as the Krebs cycle or TCA cycle. In this cycle, acetyl-CoA undergoes a series of enzymatic reactions, resulting in the production of ATP, NADH, and FADH2. These energy-rich molecules are then utilized in the electron transport chain to generate ATP through oxidative phosphorylation.
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Which organ is found in the excretory system? Urethra, stomach, large intestine, small intestine
Answers
Answer:
urethra i just now took the quiz k12
Explanation:
The organ that is found in the excretory system is to be considered as the Urethra.
What is Urethra?This tube should permit urine to pass outside the body. The brain signals the bladder muscles to tighten, which squeezes urine out of the bladder. Also, the brain signals the sphincter muscles for relax so that urine exit the bladder via the urethra.
Therefore, The organ that is found in the excretory system is to be considered as the Urethra.
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Carlton and Vanessa are lab partners in their biology class. One of their labs was to run the smell test experiment on each other.
When performing the smell test, Vanessa was quite good at noticing a difference between the various intensities of vanilla and also
the various intensities of evergreen. Although Carlton could distinguish what the vanilla and evergreen smells were, he couldn't tell
there was a difference in the intensities in the vanilla or the evergreen. Based on the information presented in this scenario, which
of the following is true?
Vanessa has a more sensitive difference threshold than Carlton.
Carlton has an impaired absolute threshold.
Vanessa has a better absolute threshold than Carlton.
Carlton has the superior performance with respect to the difference threshold.
Vanessa has an impaired absolute threshold.
Answers
Vanessa has a better absolute threshold and more sensitive difference threshold than Carlton, and Carlton has an impaired absolute threshold.
Carlton and Vanessa were lab partners for a biology class and were asked to run a smell test experiment on each other.
Vanessa was excellent at noticing the difference between various intensities of vanilla and evergreen.
Carlton, on the other hand, couldn't distinguish the difference in the intensities of both vanilla and evergreen, though he could tell the smells of both.
Hence, based on the information provided in the scenario, it can be inferred that Vanessa has a more sensitive difference threshold than Carlton, and Carlton has an impaired absolute threshold.
The two significant aspects that are involved in the scenario are absolute threshold and difference threshold.
The absolute threshold is the smallest quantity of a stimulus that an individual can detect, whereas the difference threshold is the minimum difference in stimuli that an individual can detect.
Carlton could recognize the stimuli's smell but not the difference in the intensity of vanilla and evergreen.
This shows that Carlton has an impaired absolute threshold.
He could not detect the smallest quantity of a stimulus to differentiate between the smells.
Vanessa was quite good at noticing the difference in the intensities of vanilla and evergreen.
This means that Vanessa has a more sensitive difference threshold than Carlton. She could detect the minimum difference in stimuli required to differentiate between smells.
Vanessa also has a better absolute threshold than Carlton as she could detect the smallest quantity of stimulus required to detect the smells.
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A scientist observes a group of birds perching on a wire.
The birds are evenly spaced, and each has enough room to
open its wings. Across the zoo enclosure, she observes
another group of birds perching in a similar arrangement
on a different wire.
Which option best describes the patterns of distribution observed by the
scientist
A. Regular pattern in a group; clustered pattern within the enclosure
B. Random pattern in a group; regular pattern within the enclosure
C. Random pattern in a group; random pattern within the enclosure
D. Clustered pattern in a group; random pattern within the enclosure
Answers
Answer: Random pattern in a group; random pattern within the enclosure
Explanation:
Answer:
A. Regular pattern in a group; clustered pattern within the enclosure
Demi is studying the amount of snowfall at the South Pole. She wants to describe it using cause and effect. How could she do that?
Answers
Answer:
She wants to describe it using cause and effect. How could she do that? She can't. Some things, like the amount of snowfall, do not have a cause; they just happen.
Answer: She cant
Explanation: She cant because the amount of snowfall dont have a cause for it. It is natural.
what is the name of the hormone that promotes the production of follicles in the ovary?
A-ADH
B-FSH
C-LH
D-TSH
Answers
B-FSH he hormone responsible for starting follicle development and causing the level of estrogen to rise.
Answer:
B
Explanation:
FSH helps mature the follicles, and LH helps stop the phase of ovulation so that next step can occur
ASAP!!!A scientist designed an experiment to test where a plant's matter came from. She
measured the starting mass of a willow tree, the soil, and the container. After five
years, she repeated the measurements and observed that the tree gained 74 kg (164
lbs) but the soil had not changed much at all (only lost 57 g, approximately 0.12 lbs).
1. Use evidence, from the results, to explain that the idea that the mass of a tree
comes from the soil, is incorrect. 2 points
2. Why is it incorrect to say that the tree's mass comes from sunlight? 1 point
3. If the mass of the tree does not come from the soil or sunlight, explain the trees
increase in mass. 2 points
Answers
Explanation:
The fact that the soil did not change significantly after five years, while the tree gained 74 kg, suggests that the tree's mass did not come from the soil alone. If the tree had gained all its mass from the soil, the soil would have lost an equivalent amount of mass, which did not occur. Therefore, this evidence suggests that the mass of a tree does not come solely from the soil.
While sunlight is necessary for photosynthesis, which allows the tree to produce glucose, the mass of a tree does not come directly from sunlight. Rather, the tree uses the glucose produced during photosynthesis to build its own tissues, such as leaves, branches, and roots. Therefore, while sunlight is necessary for the tree to grow, it is not the source of the tree's mass.
The tree's increase in mass is primarily due to the process of photosynthesis. During photosynthesis, the tree uses energy from sunlight to convert carbon dioxide and water into glucose, which it then uses to build new tissues. Additionally, the tree may have also taken up nutrients, such as nitrogen and phosphorus, from the soil, which it incorporated into its tissues. However, it's important to note that the majority of the tree's mass comes from the carbon that it takes up during photosynthesis, rather than the nutrients in the soil.
invade human cells and then use the cell's genetic information and mechanisms to cause disease
Answers
Answer:virus
Explanation:Viruses are microscopic biological agents that invade living hosts and infect their bodies by reproducing within their cell tissue. Viruses are tiny infectious agents that rely on living cells to multiply
A dihybrid cross experiment is carried out on pocket mice. The traits being observed are fur color and tail length. In the F2 generation, 54 mice are dark brown with long tails, 18 mice are dark brown with short tails, 18 mice are tan with long tails, and 6 mice are tan with short tails.
Which traits are dominant?
tan fur, long tail
tan fur, short tail
dark brown fur, short tail
dark brown fur, long tail
Answers
Answer:
dark brown fur, long tail
Explanation:
what is eukaryotic and prokaryotic
Answers
Answer:
Prokaryotic cells are cells without a nucleus. Eukaryotic cells are cells that contain a nucleus.
Explanation:
Eukaryotic cells are cells containing membrane-bound organelles and are the basis for both unicellular and multicellular organisms. In contrast, prokaryotic cells do not have any membrane-bound organelles and are always part of unicellular organisms.
Which statement best describes how eukaryotic cells are able to replicate such larger amounts of DNA.
Answers
Answer:
D (I think)
Explanation:
A - No, it replicates everything
B - I think it's referring to okazaki fragments (?) which is on the lagging strand so no.
C - No, in interphase they prepare the for meiosis.
D - the only reasonable statement left