Biology High School

What would happen if water from Tank A was added to Tank B?
a.the salinity in Tank A would be less
b.the salinity in Tank A would be higher
c.the salinity in Tank B would be less
d.the salinity in Tank B would be higher

Answers

Answer 1
When you take water from tank A then tank A salinity would not be less or higher so option A and B are out. The answer is depends on the relative salinity of tank A to tank B.
Assuming the tank A salinity is higher than B, then the tank B salinity will also become higher.
Answer: d.the salinity in Tank B would be higher

Related Questions

Question delineates the parameters of the study and the degree of depth that will be need.

Answers

This refers to the systematic practices that social groups develop in order to encourage conformity to norms, rules, and laws and to discourage deviance.
Society's effort to regulate itself; those mechanisms by which social norms are upheld and by which their actual or potential violation is restrained
When people give up on societal goals yet, however, still adhere to socially approved methods of achieving them, this occurs. 

What do paleontologists use to determine the actual age of rocks? A.) Biogeography B.) Radioactive dating C.) Geologic time scale D.) Relative age

Answers

The answer would be : B
The answer to your question is B

You are given a clear solution of KNO3. Using 3 – 4 sentences (in your own words) explain how you would determine if the solution is unsaturated, saturated or supersaturated.

Answers

At room temperature or about 25°C, potassium nitrate (KNO₃) has a solubility of about 38.7 grams per 100 mL of water. At this concentration, the KNO₃ solution is said to be saturated since it already contains the maximum amount of solute that the solvent can dissolve, thus, if you add more KNO₃ salt, it will no longer dissolve. When the solution has less solute than that of the saturation concentration, it is called an unsaturated solution, thus if you add more solute, the KNO₃ salt will still dissolve. If the concentration of the solution is greater than its solubility, the solution is said to be supersaturated, thus, if excess KNO₃ salt is added, crystals will start to form.

​which organ is found in the left, upper quadrant of the abdomen and secretes digestive enzymes, insulin, and glucagon

Answers

This organ is the pancreas. It is a very small endocrine gland measuring 6 inches that is located on the left abdomen near the duodenum of the small intestine and the spleen. The pancreas is a very important organ that secretes digestive enzymes like:

pancreatic amylase - breaks down polysaccarides and glycogen into simple sugars
trypsin- breaks down proteins into amino acids
pancreatic lipase - breaks down triglycerides to fatty acids and monoglycerides
ribonuclease - digests nucleic acids

It also secretes insulin and glucagon to regulate blood sugar levels.

An unconformity is _____.
a layer of sedimentary rocks
an intrusion
a layer of rocks with unusual fossils
a gap in the rock record

Answers

D) a gap in the rock record
D.) A gap in the rock record ^^^

Roly-poly bugs will move around in no particular direction until they find a suitable moist spot this kind of random movement in animals is known as what

Answers

It is known as symbiosis. Symbiosis is a connection between at least two creatures that live firmly together. Advantageous interaction can be required, which implies that either of the symbionts completely relies upon each other for survival, or facultative when they can for the most part live freely.

Answer:

Kinesis

Explanation:

Innate behaviours are behaviours that occur naturally in animals in response to external stimuli. These reflexes, taxis and kinesis.

Reflex actions are actions that occur involuntarily in response to external stimuli.

Kinesis is a non directional movement of organisms in response to external stimuli.

Taxis is a directional movement of organisms in response to external stimuli. It could be towards the stimuli or away from it.

In this case, the roly-poly bugs move aound in no direction until they find a suitable moist spot. This is certainly a kinesis.

What reaction prevents more than one sperm from binding to an oocyte during fertilization?

Answers

The reaction is called ACROSOME REACTION. The acrosome reaction occurs during the sperm interaction with the egg before fertilization occur. The acrosome is a structure that is found on the head of the sperm, it contains a chemical called acrosin which the sperm used to penetrate the egg. Sperm which can not undergo acrosome reaction can not penetrate the egg for fertilization.

Final answer:

The reaction preventing more than one sperm from binding to an oocyte during fertilization is composed of a fast block altering the membrane potential and a slow block changing the membrane structure to release proteins that inhibit additional sperm fusion.

Explanation:

The reaction that prevents more than one sperm from binding to an oocyte during fertilization involves two key mechanisms activated by the oocyte. Once the first sperm fuses with the oocyte, a fast block to polyspermy occurs, in which the membrane potential of the oocyte alters quickly, often called a "wave of negativity." Subsequently, a slow block follows, involving a change in the membrane structure itself, which releases proteins that prevent other sperms from fusing with the oocyte. These blocks are essential; without them, polyspermy could occur, leading to a nonviable embryo due to having an incompatible triple set of chromosomes.

Which is the role of the gallbladder

Answers

The gallbladder's main function is to store digestive enzymes produced by the liver.

The role of the gallbladder is to store the liquid produced by the liver.

Which is a condition that occurs when muscles weaken or shrink due to little use?

Answers

This condition is called atrophy.

In what surgery subsection would you find the code for the incision and drainage of a nasal abscess using an external approach to the abscess?

Answers

Final answer:

The code for the incision and drainage of a nasal abscess using an external approach can be found in the Otorhinolaryngology (ENT) surgery subsection under nasal procedures.

Explanation:

The code for the incision and drainage of a nasal abscess using an external approach to the abscess can be found in the surgery subsection of Otorhinolaryngology (Ear, Nose, and Throat). Specifically, it falls under the category of nasal procedures. In the Current Procedural Terminology (CPT) coding system, this procedure is usually identified by the code range 30100-30999.

To perform the incision and drainage, the surgeon makes an external incision on the skin near the abscess and then drains the accumulated pus or fluid. This procedure helps relieve the pressure and infection caused by the abscess.

Compare and contrast solutions and suspension and give a common example of each type of mixture.

Answers

Do you have the solutions you want me to compare and contrast? :)

Hey there!

Compare and contrast solutions and suspension

Solutions are mixtures in which the components are evenly distributed throughout. A suspension is a mixture of water and undissolved materials that do not settle out . An example of a solution is the salt dissolved in water. An example of a suspension is a non fat milk.


Hope this helps you


Tobey

Veins returning to the heart can close to prevent the backflow of blood. Which component in the veins contributes to this process?

Answers

Final answer:

The one-way valves in veins prevent backflow of blood, ensuring unidirectional flow toward the heart and are aided by muscle contractions and venoconstriction.

Explanation:

The component in the veins that prevents the backflow of blood is the one-way valves. These valves ensure blood flows in only one direction toward the heart, even when the pressure within the veins is low, especially after blood has passed through the capillaries. The valves are crucial because muscular contractions can increase pressure within the veins, potentially pushing blood in the wrong direction. Instead, the valves close and prevent backflow, allowing for the unidirectional flow of blood. The action of muscle contractions, especially those of the skeletal muscles, helps push blood through these valves, aiding venous return to the heart, in a mechanism sometimes described as the skeletal muscle pump. Additionally, maintaining vascular tone through venoconstriction enhances blood flow, preventing veins from excessively distending.

Sections of dna within a gene that do not encode part of the protein that the gene produces are called :

Answers

This is called an intron. An intron is a sequence that is removed during RNA splicing. It's both the DNA sequence inside a gene and the related sequence in an RNA transcript. Introns are found inside the genes of almost every organism, and also inside viruses.

What allows seed plants to carry out long distance reproduction?

Answers

In this item, we are asked for the term that refers to the process by which seed plants are able to reproduce even given the long distances between them. The sought word is "POLLINATION". 

Pollination is a process by which pollen grains are transferred from one flower to the other specifically from male anther to the female stigma. This process is carried out through the help of other organisms such as the bees and other animals that brush their body parts against the stamens and transfer the pollen to another. This process starts the production of seeds. 

Seed plants can carry out long-distance reproduction primarily due to the development of seeds.

Seeds are highly specialized structures that encase and protect the embryo, along with a supply of stored nutrients, within a tough outer coat.

This adaptation allows seed plants to disperse their offspring far from the parent plant. Various mechanisms aid in seed dispersal, such as wind, water, animals, or even explosive mechanisms in some cases.

The ability of seeds to withstand harsh conditions and remain dormant for extended periods enables them to travel long distances and establish new populations, increasing their chances of survival and successful reproduction in diverse environments.

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The two ions that are responsible for the initial depolarization of cardiac muscle as they travel from the outside of a muscle cell to the inside of the cell are _______ ions.

Answers

The two ions are SODIUM AND CALCIUM IONS. Polarization refers to loss of polarization, that is, loss of the difference in charge between the inside and the outside of the plasma membrane of a muscle due to a change in permeability and migration of ion. When a heart muscle is depolarize, sodium ion and calcium ion channels open and they migrate into the cell from the outside. 

Which type of vaccine involves stimulation of b cells without the assistance of t helper cells?

Answers

The type of vaccine that involves stimulation of b cells without the assistance of t helper cells would be the Polysaccharide vaccine. This is a unique type of vaccine that is inactivated. It consists of long chains of molecules of sugar that would make up the capsule of a certain bacteria. This is available for three diseases namely Salmonella Typhi, meningococcal disease and pneumococcal disease.

Answer:

The vaccine that support stimulation of B cells without depending on T helper cells are called Polysaccharide vaccines.

Polysaccharide vaccines are defined as a inactivated subunit vaccine made up of long sugar chains that make the surface capsule of some bacteria. There are three main diseases for which pure polysaccharide vaccines are available that includes meningococcal disease, pneumococcal disease, and Salmonella Typhi.

Biodiversity enhances ________ because it provides genetic diversity and the potential for developing more productive food crops that are disease resistant and adaptive to drought.

Answers

Biodiversity enhances FOOD SECURITY.  Food security has been under threat in some countries due to climate change. Extreme weather damage crops at certain stage making it difficult for the farmers. According to an article in greenpeace.org, the most effective strategy to adapt to climate change is to increase biodiversity. 

A 38-year-old client attends the prenatal clinic for the first time. a nurse explains that several tests will be performed, one of which is the serum alpha-fetoprotein test. the client asks what the test will reveal. what should the nurse include in the reply?

Answers

If a nurse explains that several tests will be performed, one of which is the serum alpha-fetoprotein test and then the 38 year old client asks what the test will reveal. The nurse should include in the reply of open neural tube defects. The lack of folic acid before and during pregnancy gave rise to the birth of neural tube defects. Folic acid is a vitamin B9 molecule that helps the body produce newer cells and helps stop the formation of cancer as a byproduct of the changes of DNA replication. It also helps during the pregnancy since pregnant women are prone to lack of red blood cells. The use of folic acid in the prevention of neural tube defect is to help from the defect of the baby's spinal cord and the brain.

Two different species can occupy the same _____, but each will have its own _____.

Answers

1) habitat
2) niche

Mosquitoes and bees can live in the same area, but both have different jobs within the area.

Answer: 1. Habitat

2. Niche

Explanation:

Two different species can have a same habitat. An habitat is a place where an organism survive and completes it's life cycle. But they cannot have the same niche. A niche is the functional role that an organism plays in it's habitat. Like the way it derives it's food, choice of mating season, and others.

According to competition exclusion principle if the two different species occupy the same niche. The one which is more competitive and superior over the other derives all the resources. Thus the inferior species is excluded from the environment or occupied area.

According to computer models, most coastal areas will experience what effect of global warming?

increased flooding

decreased temperatures

increased crop production

decreased precipitation

Answers

Due to global warming, sea levels will rise for two reasons. First, as temperatures increase, large amounts of ice in the polar caps will melt, increasing the volume of water in the oceans. Second, material tends to expand when it is heated, which is called thermal expansion. So if the Earth's average temperature increases, the water in the ocean will expand, contributing to rising sea levels. One major effect of rising sea levels is that coastal areas will experience more flooding, especially from storm surges during hurricanes or typhoons.

If your on GradPoint or NovaNet,

your answer would be (A) increased flooding.

I hope this helped!

Scientists often use fruit flies as a method to test hypotheses about human genes. Why are fruit flies advantageous in the study of human inheritance?

Answers

D. they reproduce quickly and take up little step

Answer:

Fruit fly or Drosophila melanogaster is one of the most well understood model organism. It is used extensively in scientific research, specially human genetics due to following reasons:

Drosophila and humans share almost 75% of genesDrosophila's reproduction cycle is only of 8-14 days so many generations can be observed in a short amount of timeThey are small and hence do not require a lot of spaceTheir maintenance is easy and cheapIt is a well studied model organism so a lot of information is available about themIt is easy to mutate Drosophila genes.

During a routine physical examination, a 65 year-old male patient tells the physician, "i get up several times during the night to urinate." based on this symptom, the physician suspects that the patient may have:

Answers

Based on the given symptoms of the patient of having to urinate frequently at night, it is probably the patient has an enlarged prostate gland or has an infection of the bladder or urinary tract as this problem causes a person to urinate frequently during the evening. It will make the person’s sleeping time to be disrupted as frequently urinating has the tendency of waking a person in order to urinate.

Based on the symptom of nocturnal urination, the patient may have an enlarged prostate or a urinary tract infection, which are common in older men. The doctor will likely perform diagnostic tests to identify the underlying cause of the urinary frequency.

The symptom of getting up several times during the night to urinate suggests that the physician may suspect that the patient has an enlarged prostate or a urinary tract infection (UTI). Both conditions are common in older men. An enlarged prostate can squeeze the urethra and make it difficult to completely empty the bladder, leading to frequent urination, especially at night. A UTI in older adults can be indicated by symptoms like a fever, pain during urination, and increased frequency of urination.

Moreover, UTIs can cause a notable decline in mental function in elderly patients. The physician's approach to monitoring fluid intake and ordering a urine culture is aimed at confirming the presence and identifying the causative agent of a possible infection.

A scientific theory _____.
1.is an attempt to explain how or why things happen in the manner observed
2.is the scientific community’s best explanation for certain observable facts 3.describes an observed pattern in nature without attempting to explain it

Answers

the best choice is number two

Answer:

2. Is the scientific community's best explanation for certain observable facts

Telemedicine and remote monitoring are part of a _____ _____ trend.

Answers

Telemedicine and remote monitoring are pat of a WORKGROUP COMPUTING trend. Telemedicine is the use of networking technology to provide medical information and services remotely. The trend toward online collaboration is called workgroup computing or collaborative computing.
Final answer:

Telemedicine and remote monitoring are part of a digital healthcare trend. This trend, also including the sharing of digital records and a-chip technology, aims to improve healthcare quality and efficiency. These advances have resulted from an increase in demand from an aging population and improvements in technology.

Explanation:

This trend is driven by advances in technology like a-chip technology and the increase of home medical tests. The digital healthcare trend also includes the sharing of digital records among health providers, aiming to improve the quality and reduce the cost of health care.

Healthcare has undergone many changes in recent times. In addition to the adoption of remote monitoring and telemedicine, there have been systemic changes like hospital mergers to improve efficiency, the rise of urgent care offices and other types of healthcare professionals, and the implementation of insurance mandates and artificial intelligence to complement and streamline healthcare processes.

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Which example describes animals living in a social hierarchy

Answers

Answer:

2. a worker bee defends the hive while the queen bee lays eggs

4. a prairie dog barks to alert family members when it spots a predator

Explanation:

i just did the test on edg. your welcome

An organism that produces catalase enzyme is protected from the harmful effects of

Answers

Protected from the harmful effects of free radicals, often referred to as reactive oxygen species (ROS).
Hydrogen Peroxide (H2O2) is a by-product of metabolic reactions of cells that use oxygen (aerobic respiration) to produce energy from carbohydrates (food). The problem with H2O2 is that it can be toxic to cells, due to its free radical properties, as an ROS. Organisms protect themselves from this by using an enzyme called peroxidase, also known as cayalase.

Dogs are more sensitive to smells than humans because _____.
a. ​dogs tend to be microsmatic
b. ​humans have more olfactory receptors than dogs
c. ​dogs have many more olfactory receptors than humans
d. ​each individual olfactory receptor is more sensitive in dogs than in humans

Answers

c, Dogs have many more olfactory receptors than humans

Dogs have many more olfactory receptors than humans therefore they are more sensitive to smells.

Why do dogs use olfactory receptors?

The ability of dogs to smell is essential for them to be able to recognize individuals, gather significant information about their surroundings, come to decisions, and learn new things. It is extraordinarily specialized and sensitive, especially in comparison to the human sense of smell.

Dogs devote a significant portion of their mental capacity to analyzing odors. They have more than 100 million sensory receptor sites in the nasal cavity, compared to 6 million in people, and the area of the canine brain that is dedicated to analyzing odors is approximately 40 times larger than the comparable part of the human brain. This is because dogs have a larger nasal cavity than humans do.

Therefore, dogs are more sensitive to smells than humans.

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For older adults and previously inactive individuals, exercise intensity should fall closer to what percentage of the maximal heart rate?

Answers

The answer is 50%.

The-related number of thumps every moment of the heart when working at its greatest that is generally evaluated as 220 short one's age achieved 90 percent of his most extreme heart rate when tried on a treadmill. 
It is prescribed that you practice inside 55 to 85 percent of your most extreme heart rate for no less than 20 to 30 minutes to get the best outcomes from oxygen consuming activity. The MHR (generally ascertained as 220 less your age) is the maximum furthest reaches of what your cardiovascular framework can deal with amid physical movement.

i think the answer is D ...

Answers

Yes, D is correct. There are four combinations of alleles: BB, Bb, Bb, and bb. bb is one out of the four possibilities of allele combinations inherited, and it represents the trait for white fur. There is no dominant brown allele to create brown fur, so it is the only option that will create white fur, thus making a 25% chance of offspring having white fur.

What are the three particles of an atom

Answers

Protons, electrons, and neutrons are the three particles of an atom.
A proton is a positively charged particle, electron is negatively charged, and a neutron is neutral, as the name itself says. These three are considered to be the smallest particles of an atom (although later the existence of quarks was discovered, which are even smaller). 
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