Which anatomical part of the eye is responsible for the production of tears?

Answers

Answer 1
The anatomical part of the eye that's responsible for the production of tears is the lacrimal gland.

The lacrimal gland is located in the upper lateral part of the orbit, just laterally and above each eye. It can be divided into two portions. The orbital portion is the one that has interlobular ducts that will connect with those of the other portion - palpebral portion - collecting the produced tears and leading them to the eye's surface.

Related Questions

If an individual has 7 gene pairs, how many different gametes can be formed if two of the gene pairs are homozygous and the remaining 5 gene pairs are heterozygous?

Answers

You only need to consider the 5 gene pairs that give different alleles. The number of different eggs or sperm = 2n, where "2" indicates 2 different alleles for each trait and "n" = the number of traits. = 32

Final answer:

An individual with 7 gene pairs, of which two are homozygous and five are heterozygous, can form 32 different gametes. This is due to the 2⁵ possible combinations for the alleles from the heterozygous pairs, while the homozygous pairs do not contribute to variability.

Explanation:

Calculating Different Possible Gametes

When considering the formation of gametes in an organism, we need to understand Mendel's Law of Segregation and the concept of genetic variability. An individual with 7 gene pairs where two are homozygous and five are heterozygous can produce different combinations of gametes. The homozygous gene pairs will each contribute one type of allele, since both alleles are the same. However, each heterozygous gene pair can contribute two different types of alleles because they have one of each allele.

Therefore, for the five heterozygous gene pairs, since each pair can contribute 2 different alleles, we use the formula 2ⁿ, where n is the number of heterozygous gene pairs, to determine the number of different gametes possible. For five heterozygous pairs, we calculate 2⁵, which equals 32. The homozygous pairs do not contribute to variability, and thus the total number of different gametes this individual can form is 32.

A) explain the hardy-weinberg principle of equilibrium theory. (4 pts.)
b.apply the hardy-weinberg principle to this scenario. in plants, violet flower color (v) is dominant over white (v). if p=.8 and q = 0.2 in a population of 500 plants, how many individuals would you expect to be homozygous dominant ( vv), heterozygous (vv), and homozygous recessive (vv)? how many plants would you expect to have violet flowers, and how many would have white flowers? (6 pts.)

Answers

A. The Hardy–Weinberg principle says that genotype or allele frequencies in a population is constant from generation to generation as long as there isn't any evolutionary influences such as mutations, genetic drift, mate choice, etc. When such influences are not present, the genotype or allele frequencies will tend to an equilibrium - the number of the different alleles will be balanced. The Hardy–Weinberg equation is p²+ 2pq+q²=1 where p is the dominant allele and q is the recessive allele. (p² represents homozygous dominant, 2pq represents heterozygous, and q² represents homozygous recessive.)

B.
Homozygous dominant=p²=0.8²=0.64
500(total number of plants in the population)×0.64(percentage of homozygous dominant)=320
It would be expected to have 320 homozygous dominant plants.

Heterozygous=2pq=2×0.8×0.2=0.32
500(total number of plants in the population)×0.32(percentage of heterozygous)=160
It would be expected to have 160 heterozygous plants.

Homozygous recessive=q²=0.2²=0.04
500(total number of plants in the population)×0.04(percentage of homozygous recessive)=20
It would be expected to have 20 homozygous recessive plants.

Violet flowers correspond to the sum of all the homozygous dominant plants and the heterozygous plants, once the violet colour is dominant over the white colour. Violet flowers=320+160=480
White flowers correspond to the homozygous recessivet plants, once the violet colour is dominant over the white colour. White plants=20

"when treating a patient who experienced a pulmonary blast injury, you should"

Answers

The answer is avoid giving oxygen under positive pressure.

A blast injury is a complex type of physical trauma resulting from direct or indirect exposure to an explosion. Blast injuries occur with the detonation of high-order explosives as well as the deflagration of low order explosives. These injuries are compounded when the explosion occurs in a confined space.

Final answer:

In treating a pulmonary blast injury, ensure the patient's airway is open and they are receiving sufficient oxygen. Then focus on diagnosing injury extent and managing symptoms. The patient should be closely monitored to update the treatment plan if needed.

Explanation:

When treating a patient who has experienced a pulmonary blast injury, healthcare professionals should first ensure that the airway is open and that the patient is receiving sufficient oxygen. Immediate stabilization to prevent further lung damage is crucial. Following this, the focus should shift to diagnosing the extent of the injury and managing related symptoms. This could involve thoracic imaging to visualize the extent of damage, pain control, respiratory therapy, possible use of steroids, wound care, and possible surgery. As with all medical care, the patient should be closely monitored to understand response to treatment and adjust as necessary.

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What are three reasons a species may become extinct?

Answers

Three reason for a species to become extinct are:

Climate Change: Each kind has their own defense systems and built in mechanism to fight epidemics and diseases, with the changing climate for some species it becomes hard to fight with the new epidemics and diseases causing their eventual extinction.

Spread of Invasive Species: When in an area a species is utilizing the resources and another invading species also start making use o that source the battle will end on the rule or "survival of the fittest" and one from the two will become extinct.

A catastrophic event / Natural disaster: At times there can be a single catastrophic event like a volcanic eruption or a meteor striking the earth etc. can cause an entire species to go extinct.

Describe the characteristics of a stable society

Answers

The characteristics of a stable society are as follows:
1. A stable society should be self sustaining.
2. It should have social institutions such as educational institutes, political institutes, religious institutes, etc.
3. It should be well organized.
4. There should be cooperation among the people living in a society.

Answer:

Following are characteristics of a stable society:

1. An autonomous society is essential for stability.

2. It should have social institutions including schools, political organizations, and churches, among others.

3. It should be well structured.

4. The inhabitants of a society ought to work together.

Explanation:

Consider a gene with four alleles a1, a2, a3, and a4. in the cross a1a2 × a3a3, how many offspring genotypes are possible?

Answers

With allele crossing we can represent it for an easier understanding by a table like the following:
                  _______Parent 1_______
              |    |____a1___|____a2____
              |a3|    a1a3      |      a2a3
Parent 2|__|_________|__________          
              |a3|    a1a3      |      a2a3
              |    |                  |

It is possible to form two genotypes. When the there is one homozygous individual, the variety in the combination will depend solely on the variation of the other parent.

A woman with one allele for huntington's disease marries a man who also has one allele for the disease. what is the probability that their child will have the disease?

Answers

if its a dominant allele 75%
if its recessive allele 25% 

thats what i was always taught i hope this helps some :)
 

A client who has just experienced her second spontaneous abortion expresses anger toward the practitioner, the hospital, and the "rotten nursing care." when assessing the situation, the nurse concludes that the client may be using the coping mechanism of:

Answers

Displacement , patient displacing feelings of anger towards health care team

Answer:

Displacement

Explanation:

This defense mechanism is the displacement of an energetic impulse that would initially address one person or situation, another target - neutral or less dangerous - and more socially accepted. In other words, dislocation is a defense mechanism in which a person throws all his frustration and anger at someone else, because at that moment the angry person feels that someone must take responsibility for their degree of stress. An example of this is the case of the client, exposed in the question, she has no control and cannot resolve the reasons why she has miscarriages, but she believes the medical staff could solve this, so she blames them.

Baby alfredo looks more intensely at a checkerboard with large black and white squares rather than one with smaller gray and white squares. alfredo is

Answers

 he is most likely color blind or he might have eye sight problems

H process is the most efficient way to convert glucose into atp?

Answers

Cellular Respiration is the process in which glucose is broken down with the help of Oxygen to get ATP and Carbon Dioxide and Water are the waste products

Is it true that becoming health literate requires understanding technical medical terms?

Answers

yes it is true. otherwise how would you know what a doctor or nurse is saying

A(n) _____ reaction occurs when ionic or covalent bonds are broken and elements, ions, or simpler molecules are formed.
A. Reversible
B. Decomposition
C. Exchange

Answers

Answer:

The correct answer is B. A(n) decomposition reaction occurs when ionic or covalent bonds are broken and elements, ions, or simpler molecules are formed.

Explanation:

The decomposition reaction can be described as a type of chemical reaction in which a product is broken down to yield simpler molecules or atoms. Energy is needed for a decomposition reaction to occur.

For example, a decomposition reaction occurs when a molecule of water is broken down to yield two hydrogens and an oxygen atom. The covalent bonds used to form water are broken down during the decomposition reaction.

A study was conducted to examine the impact of temperature changes on the number of "non-native species" in an area of the mid-Atlantic ocean. The results of the study are shown in the table below.


Temperature (°C) Number of species
Sample 1 15 12
Sample 2 22 10
Sample 3 32 23
Sample 4 27 19


What is the relationship between temperature and non-native species?
There are more non-native species in warmer temperatures.
There is no correlation.
There are fewer non-native species in warmer temperatures.
There are more non-native species in colder temperatures.

Answers

Final answer:

Based on the dataset provided, there is a trend indicating that there are more non-native species in warmer temperatures in the mid-Atlantic ocean region.

Explanation:

The relationship between temperature and non-native species can be interpreted from the given dataset. When analyzing the number of non-native species at various temperatures, it can be seen that there tends to be more non-native species in warmer temperatures. For example, at 15 °C, there are 12 species, and at 32 °C, there are 23 species. This suggests that there might be a positive correlation between temperature and the number of non-native species. This is consistent with research suggesting that many marine species, including non-native or invasive species, may shift their distributions in response to temperature changes, often moving towards warmer waters.

Which of these statements is not correct about enzymes? 1. enzymes lower the potential energy for the reactions they catalyze. 2. enzymes have specific substrates and optimal conditions. 3. enzymes are mostly proteins that function as catalysts. 4. enzymes may perform a reaction many times until it is degraded. 5. enzyme activity can be regulated by ph and temperature?

Answers

Change ΔG for a reaction As shown in the graphs above, enzymes only lower activation energy, but don't change the difference in energy levels between reactants and products.

Enzymes are the bio-catalysts which added to a chemical reaction which lowers the activation energy of the reaction. Enzymes have specific substrates and optimal conditions. Thus, the correct option is 1.

What are enzymes?

Enzymes are the proteins which act as biological catalysts by accelerating the rate of chemical reactions. The molecules upon which enzymes act are known as substrates, and the enzyme converts these substrates into different molecules called products.

Enzymes act by decreasing the activation energy of the chemical reaction. These are not used up in a chemical reaction and therefore can perform a reaction multiple times until it is degraded. The enzymes show affinity to specific substrates and have optimal conditions such as temperature, pressure, and pH at which they show maximum activity.

Therefore, the correct option is 1.

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When the cell potential is negative in a voltaic cell, the cell reaction will not proceed spontneously
a. True
b. False?

Answers

When the cell potential is negative in a voltaic cell, the cell reaction will not proceed spontneously 


Answer: A true

                Good luck and have a nice benevolentpuppy day! :)

Which of the ones below can be found in the arterioles but not in the capillaries?

Answers

You did not list the answer choices "below," but arterioles have smooth muscle in their walls while capillaries lack any smooth muscle.

The symptoms of swine pox for pigs include pustules on the abdomen, often with a red circular appearance around the blister area.
a. True
b. False

Answers

I believe that this is true or a.

What do you think would happen to the gummy bear if you let it soak in salt water overnight

Answers

Final answer:

A gummy bear left in salt water overnight will shrink due to the process of osmosis, which is the movement of water from a lower concentration (in the gummy bear) to a higher concentration (in the salt water). The gummy bear loses more water than it absorbs because of the high salt concentration in the water.

Explanation:

When a gummy bear is left to soak in salt water overnight, it will experience osmosis because of the difference in solute concentration between its gelatin makeup and the salty water. The salt in the water will draw the water out of the gummy bear as it tries to equalize the concentration of water. The result is that the gummy bear will shrink after being left in salt water overnight, because it loses more water than it can absorb due to the higher concentration of salt in the water.

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​after digestion and absorption, an amino acid not used to build protein will first be subjected to ____.

Answers

After digestion, an amino acid not absorbed by the body and not used to build proteins will first be subjected to removal from its amino group. If they are not used for protein synthesis, amino acids becomes part of the metabolism process. The body has the capability to create a subset of amino acids, also known as non-essential amino acids because we don’t have requirement for them in our diet. 

Final answer:

After absorption, an excess amino acid not used in protein synthesis will first undergo transamination or deamination, resulting in the removal of its amino group, which leads to urea formation for safe excretion, while the remainder of the amino acid can be repurposed for energy, glucose, or ketone body production.

Explanation:

After digestion and absorption, an amino acid not used to build protein will first be subjected to transamination or deamination. During the transamination process, the amino group of the amino acid is transferred to α-ketoglutarate, resulting in the formation of glutamate and a new α-keto acid. If the amino acid undergoes deamination, its amino group is removed, converting it into ammonia which is toxic. The liver then converts the ammonia into urea, a less toxic compound that can be safely excreted from the body through urine.

The carbon skeletons that remain after deamination can be used for various purposes in the body such as energy production, synthesis of glucose, or synthesis of ketone bodies. However, it's important to note that the body prioritizes the use of amino acids for the synthesis of new proteins, and only when there's an excess or during starvation, the amino acids are directed towards energy production pathways.

To test how fertilizer affects aquatic animals, a student prepared four identical containers with water fleas. The student then added different amounts of fertilizer mixed with distilled water to three of the containers and distilled water alone to one of the containers. Which factor is being tested in this experiment?

A. Age of water fleas
B. Amount of distilled water
C. Amount of fertilizer
D. Size of habitat

Answers

It would be C. because the student is using different amounts of fertilizer in each container

The right option is; C. Amount of fertilizer

Amount of fertilizer is the factor that is being tested in the experiment.  

In this experiment, different amounts of fertilizer that was mixed with distilled water was added to three of the containers. The different amount of the applied fertilizer is expected to have different effect and to produce different results. This makes the amount of fertilizer to be the factor that is being tested in the experiment. The container to which only distilled water is added will serve as the control in the experiment.

Explain why living things need both glucose and atp

Answers

We need ATP to live, to perform our daily tasks, to move, to do everything, and we get ATP from glucose, the food that we eat.

Inorganic nutrients that your body needs, usually in small amounts, are called

Answers

They're mineral ions.
Examples are calcium and iron
They can prevent diseases such as ricket (soft bones) and anaemia (not enough blood)

The electrochemical gradient in a chloroplast can have a concentration of protons 1000 times greater on one side of a thylakoid membrane than the other.
a. True
b. False

Answers

The statement above is TRUE.
The electrochemical gradient in the chloroplast is a gradient of electrochemical potential of ions which move across the membrane of the chloroplast during the photosynthesis process. The proton gradient across the thylakoid membrane drives the ATP synthesis during photosynthesis.

Where do the light-dependent reactions for photosynthesis occur in eukaryotic cells?

Answers

The light-dependent reactions for photosynthesis occur in the chloroplasts of the plant cell.

Which tidal process makes it challenging for organisms to survive in coastal areas?

When the tide comes in, some coastal areas are covered in very deep water.
When the tide comes in, the temperature of the water increases significantly.
When the tide recedes, some coastal areas are exposed to air for many hours.
When the tide recedes, the temperature of the water decreases significantly.

Answers

C) When the tide recedes, some coastal areas are exposed to air for many hours  
Final answer:

The receding tide can pose challenges to organisms in coastal areas by exposing them to air for long periods, causing drastic changes in their environment, including temperature and food availability.

Explanation:

The tidal process that makes it challenging for organisms to survive in coastal areas is when the tide recedes. During this phase, some coastal areas are exposed to air for many hours. This change in water availability can be a significant stressor for marine organisms that are adapted to life underwater. For example, tidal pools that form when the tide recedes can quickly heat up or cool down, causing drastic changes in temperature. This exposure not only changes the immediate physical environment in which these organisms live but can also affect their ability to find food and avoid predators.

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Drug _____ is a pattern of substance use resulting in negative consequences or impairment.

Answers

The answer is Drug Abuse.
The answer is 'abuse'

Why plants are kept in the dark for a week are still able to conduct cellular respiration.?

Answers

Because it is an Independent reaction where it is not dependant on solar energy

which process usually uses carbon dioxide molecules

Answers

In Biology, this could be photosynthesis.
Final answer:

Photosynthesis is the biological process that uses carbon dioxide, transforming it along with water into glucose and oxygen due to the energy from sunlight.

Explanation:

The process that usually uses carbon dioxide molecules is photosynthesis. This is a process performed by plants, algae, and certain types of bacteria. In photosynthesis, carbon dioxide is absorbed from the environment and combined with water through the energy from sunlight. This results in the production of glucose, which is a type of sugar serving as a primary energy source for these organisms. Moreover, photosynthesis also produces oxygen as a byproduct, which is released into the atmosphere and used by animals for respiration.

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Which food chain would cease to exist if all the bushes were destroyed?
A. deer - coyote
B. mice -snake -hawk
C. grasshopper -frog- hawk
D. None of the food chains would be affected.

Answers

BC grasshopper,frog,and hawk

Answer:

C. grasshopper - frog - hawk

Explanation:

In the image network of food, chains are in operation.  In the given ecosystem, different types of producers are present. The producers are eaten  by herbivores or primary consumer. If all the bushes were destroyed, then the food chain consisting of grasshopper -frog- hawk will cease because grasshopper only eats bushes. Other herbivores such as rabbit, deer can eat other producers such as trees, carrot beside bushes. Therefore, food chains consisting of deer-coyote and mice - snake - hawk will survive.    

The United States Mint began minting and issuing American Indian $1 coins in 2009. Consider the 2011 American Indian $1 coin below.

mc026-1.jpg

Which is an accurate observation?

A) The coin shows that passing the peace pipe was an important tradition in 1621.
B) The coin was minted in the year 1621.
C) There is a woman’s face on one side of the coin.
D) The coin shows that American Indians influenced US history.

Answers

I just took this test, and the correct answer is C

Option C i.e There is a woman’s face on one side of the coin is the correct answer.

The Accurate Observation provides accurate information while observing an object. So while observing physically (accurate observation) the 2011 American Indian $1 coin, we can see woman’s face on one side of the coin. The women is Sacagawea, a Shoshone interpreter who guided Lewis and Clark Expedition into the American West.

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