Identify the two main regions of a typical mollusk's body

Answers

Answer 1
Head foot and visceral mass

Most of the mollusks species are gastropods. The body of the mollusk is made of shell and fleshy part. The fleshy part is divide into foot and visceral mass. Foot is a distinct feature of mollusk. They use it mainly for locomotion. The visceral mass involves the organs for circulation, digestion and other important processes in living organism. The visceral mass has two external flaps of tissue called as the mantle. It secretes calcerous shell and encloses a mantle cavity.
Answer 2
The main regions of a typical mollusk's body is head foot and visceral mass. The Mollusks are soft bodied invertebrates. They have 4 body parts that are head and foot, shell, visceral mass and mantle. The main two parts are the head and foot and visceral mass. The Visceral mass is where digestion, respiratory, reproductive and excretory are held. On the other hand the foot is used to give a sense of balance and the head is used to carry one or two tentacles.

Related Questions

What is the main cause of ocean acidification?
a. the dissolution (dissolving) of sea shells of marine organisms
b. co2 from the burning of fossil fuels
c. industrial pollution from chemical companies
d. years of waste material that has been dumped into the oceans from large ships?

Answers

b. CO2 from the burning of fossil fuels

Inputs, processes, outputs, feedback, and a goal are all involved in
a.

brainstorming.
b.

technological systems.
c.

troubleshooting.
d.

trade-offs

Answers

Inputs, processes, outputs, feedback, and a goal are all involved in...technological systems.....

The correct answer would be option B, Technological Systems.

Input, processes, outputs, feedback and goal are all involved in Technological System.

Explanation:

Technological System is a system which involves things like Input, processes, Output, feedback and goals.

Every fragment of the system has its part in running that system.

Inputs are the things that are being put in the system to achieve or get the desired output.

Processes are the procedures that take the input, govern the system according to it and run it as desired.

Output is the desired outcome from the system or machines after inputting data and having processing over it.

Feedback is to see that the system generated the desired results or not.

Goals are those desired results that need to be achieved by the Technological System.

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Question 1 of 8 make the connection. for each clinical scenario, drag and drop the condition that is best exemplified. wendell complains that there is blood in his stool and the stools seem darker than normal. what condition explains wendell's symtoms?

Answers

Wendell condition is melena.

Melena is the formation of dark stools that look like tar. The black colour comes from oxidized blood, so there must be an underlying condition that causes upper gastrointestinal bleeding like rupture of esophagus varicess.
The patient would need a gastroscopy to identify the source of the bleeding and stop it.

List and explain the factors that influence blood pressure, and describe how blood pressure is regulated.

Answers

Arterial blood pressure reflects two factors:
How much the elastic arteries close to the heart can be stretched (their compliance or dispensability)
The volume of blood forced into them at any time. If the amounts of blood entering and leaving the elastic arteries in a given period were equal, arterial pressure would be constant. Blood pressure rises and falls in a regular fashion in the elastic arteries near the heart.

Silkworms are grown commercially for the silk that they spin when they make their cocoons. The silkworm eats White Mulberry leaves. Can the relationship between the silkworm and the Mulberry plant be considered commensalism? A. No; the plant is harmed by the silkworm. B. No; no one benefits from this relationship. C. Yes; the silkworm benefits and the plant is not affected. D. Yes; both organisms benefit from this relationship.

Answers

D. Yes; both organisms benefit from this relationship.

HOPE IT HELPS UH!!☺️
PLZ MARK IT AS BRAINLIST
I think it’s A no the plant is harmed or c

What does tiresias predict will happen if odysseus raids the herds of helios?

Answers

He says if any of the men touch them they will all die except for Odysseus. ... To survive the Sirens, Odysseus gets his men to fill their ears with wax while he tied himself down.

Plants play a major role in the carbon cycle. Plants use carbon dioxide for

Answers

the process of photosynthesis

Answer: the process of photosynthesis

Explanation:

Where in our environment does our body obtain the oxygen it needs? What two systems are responsible for obtaining the oxygen and delivering it to the cells?

What system provides the nutrients that the cells will convert to energy?

During the process of making energy, our cells produce waste products. What systems are used to expel CO2?

What are the systems that are used to eliminate solid and liquid wastes?

Describe the relationship between the bones and muscles for movement, and the other systems that are necessary for the bones and muscles to function.

What systems are responsible for meiosis and what are the results?

Answers

Answer:

We get oxygen from the air i.e. atmosphere. Green plants release oxygen in the atmosphere as a byproduct of photosynthesis. Respiratory system is responsible for obtaining oxygen from the environment. Circulatory system on other hand helps in delivering this oxygen to different cells of the body with the help of blood.

We get nutrients from the food that we eat. Digestive system breaks down all the complex compounds (such as polysaccharides, polypeptides, fats etc) into simpler elements which are easy to absorb.  

[tex]CO_{2}[/tex] produced as a waste product by the cells is carried by the blood to alveoli in the lungs where it gets diffused out and come out of the body as a part of exhale air. Hence, circulatory system helps in he transportation of [tex]CO_{2}[/tex] from cells to the lungs and respiratory system helps in expelling it out from the lungs to the outside environment.

Solid wastes are mainly excreted out of the body from anus which is a part of digestive system. On the other hand, liquid waste (urine) is excreted out of the body with the help of urethra which is the part of excretory system. In addition, excess salts and water can also excrete out of the body through skin.

Muscles and bones together help us in our locomotion. Nervous system is important for proper functioning of bones and muscles.

Meiosis is the type of cell division used to produce haploid cells or gametes from a diploid parent cell. Hence, it is used in reproduction system to produce sperm in males and eggs in females.

Where in the body would you find low oxygen levels causing vasoconstriction and high levels causing vasodilation?
a. liver
b. lungs
c. kidney
d. heart?

Answers

The correct answer is the lungs. Usually, in the systemic organs such as the liver, kidneys, and the heart; hypoxia or low oxygen levels cause the blood vessels supplying them to vasodilate to increase flow of blood and prevent ischemia. Adequate oxygenation of systemic organs cause the blood supply to vasoconstrict to prevent pooling of oxygenated blood and shunt it to other organs that need the oxygen more.

However, in the lungs, the opposite is true because in the setting of hypoxia, the blood vessels of the lungs vasoconstrict as to shunt the blood to other parts of the lungs with adequate oxygenation for the blood to be adequately oxygenated. If there is adequate oxygen in the lungs, then blood vessels vasodilate to efficiently get the oxygen from the lungs. 
The answer for the question is the lungs.
Vasodilation means the smooth muscles in the blood vessel walls relax causing them to widen. The widening results in less vsacular resistance, thus the blood flow through the dilated vessel increases. Vasocontsriction on the other hand means the smooth muscles in the blood vessel walls contract causing them to narrow. The action results in blood flow through the vessels to be restricted.

An enzyme that can facilitate the breakdown of amylose into smaller units is ________.

Answers

The digestive enzyme amylase helps breakdown of amylose into smaller units. Amylose is a polysaccharide carbohydrate or starch that is a thickener, water binder, emulsion stabilizer and gelling agent. Amylase on the other hand is an enzyme that you can find in saliva and pancreatic fluid. 

The nurse is admitting a client who states, "i was bit by a brown recluse spider." which observations made by the nurse would indicate the client's report is accurate?

Answers

Observations for a recluse spider bite exhibits the signs and symptoms of the ff:

- the skin is reddened, and will be followed by blisters that will be forming on the bite site. 
- in 2 to 8 hours of the bite, intense pain will be felt by the victim or the patient, and is accompanied by itching.
- a week after the bite, an ulcer or a sore (open) with necrosis (breakdown of tissues) will develop and may take up to a month to heal. 

Which of the following is a member of the class Polychaeta?
Clam Worms
Earthworms
Leeches
All of the above

Answers

Polychaeta generally refers to a class of annelid worms with segmented body parts.

Even though all of the answers are annelid worms, polychaetes are generally marine animals, so I would say that the answer is most likely Clam Worms.

Answer:

Clam worms

Explanation:

The polychaeta is the most primitive and largest class of the phylum Annelida.  Polychaetes are marine worms. Polychaetes have a distinct head with specialized sense organs such as eyes. These features differentiate from other annelids. This class includes the clam worm or Nereis  

suppose a species of beetle feeds on grass in a grassland ecosystem toads prey on the beetle in which of the following scenarios would a predator become a limiting factor for the beetle population

Answers

The possible answers are 
A.a drought reduces the toad population 
B. an influx of soil nutrients results in increased grass growth 
C.a hawk species moves in that hunts toads
D.the toad population increases after a warm, wet spring

The correct answer is D

The increase in numbers in the toad population after a warm and wet spring would mean that there are more toads that prey on the beetles and that they are limiting the beetle population by hunting them.

Designing and constructing buildings that are energy efficient, economical, and made of recycled materials, is a trend called:

Answers

Designing and constructing buildings that are made of recycled materials, energy efficient, and economical, is a trend called Green architecture.

The process of making new dna molecules is semiconservative. this means that every new dna molecule is composed of

Answers

The process of making new DNA molecules is semiconservative. this means that every new DNA molecule is composed of one strand of old DNA bound to one strand of newly synthesized DNA.

What is DNA replication?

DNA replication is the process through which the genome's DNA (deoxyribonucleic acid) is copied in cells. Before a cell undergoes division, it must first replicate its entire genomic material so that each of the resulting daughter cell ends up with its own complete set of  genetic material.

DNA replication is semi-conservative in nature. This means that in every double helix molecule of DNA, the new generation of an organism consists of one complete old strand and one complete new strand of DNA wrapped around each other.

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How are fructose and glucose different?


One is a monosaccharide and the other is a disaccharide.


One has 6 carbon atoms and the other has 5 carbon atoms.


They have a double-bonded oxygen in different locations.


They each have a unique molecular formula.

Answers

Answer:

Option). They have a double-bonded oxygen in different locations.

Explanation:

Both glucose and fructose are monosaccharides, having molecular formula C₆H₁₂O₆.

Glucose and fructose are different sugars, aldose and ketose respectively, due to the different position of carbonyl group (double bonded oxygen with carbon or C =  O group).  

In glucose, the oxygen atom makes double bonds with last carbon atom of the chain, which means carbonyl group shows an aldehyde group. Thus, it is an aldose sugar.

In fructose, the oxygen makes double bonds with an internal carbon atom and represents a ketone group. Thus, it is a ketose sugar.

Thus, the correct answer is third option.

Final answer:

Fructose and glucose are both monosaccharides and isomers with the same molecular formula, C6H12O6. They differ as glucose is an aldose and fructose is a ketose, and they have different ring structures; six-membered for glucose and five-membered for fructose.

Explanation:

Fructose and glucose are both monosaccharides with the same molecular formula, C6H12O6, but they differ in their structural arrangement, making them isomers. One of the primary differences is that glucose is an aldose, with the aldehyde group at the end of the molecule, whereas fructose is a ketose with the ketone group in the middle of the molecule. While glucose forms a six-membered ring, fructose forms a five-membered ring structure. These differences in structure lead to variations in their chemical properties and how they are metabolized in the body.

Which groups of viruses require an rna-dependent rna polymerase?

Answers

Most viruses have RNA genomes that are replicated and transcribed into messenger RNA by viral RNA-dependent RNA polymerases (RdRps), usually in concert with other viral and host factors. Many, if not most, eukaryotes also encode putative RdRps that have been implicated in sequence-specific, RNA-triggered gene silencing. Although the viral and cellular RdRps have no sequence homology, they share functional similarities such as copying messenger RNA templates and intercellular spread of the amplified sequences. Better understanding of viral and host RdRps will improve our ability to control viruses and to use RNA silencing and viruses as tools for research, biotechnology, and medicine.

Using the punnett square.
What is the probability that the hamsters’ offspring will have straight fur?
A. 25%
B. 50%
C. 75%
D. 100%

Answers

I'm pretty sure it would be 50%

The age of the universe is thought to be approximately _____ years old.

A. 6,000
B. 42,000,000
C. 370,000,000
D. 15,000,000,000

Answers

D. 15,000,000,000 years old  (although it may be a lot older). Trust me, I am an astronomy nerd.

Answer by YourHope:


The age of the universe is thought to be approximately 15,000,000,000 years old!


:)


A medical term that means puncture pleura to withdraw fluid is ____________.________________ ____________________

Answers

The answer is pleurocentesis.


The brainest answer would be appreciated. 

Final answer:

The medical term for puncturing the pleura to withdraw fluid is thoracentesis, a procedure performed to alleviate symptoms and analyze the cause of a pleural effusion.

Explanation:

The medical term that means puncture of the pleura to withdraw fluid is thoracentesis. This procedure is used when there is an accumulation of excess fluid in the pleural space, a condition known as a pleural effusion, which can interfere with normal breathing. Conducting a thoracentesis involves inserting a needle into the pleural space, often using ultrasound guidance, to remove fluid for both therapeutic relief and diagnostic analysis.

The pleural space normally contains a small amount of fluid which serves as lubrication, allowing the lungs to move smoothly against the thoracic wall during breathing. However, when this balance is disrupted by inflammation, infection, trauma, or other medical conditions, it can lead to pleurisy or other complications such as spontaneous pneumothorax (collapsed lung), which requires prompt medical attention.

The term iteration means the same as the action of looping.
a. True
b. False

Answers

Hello!

The correct answer to your question is A - True. Iteration means the looping or repetition of something. 

I hope this helps you! Have a great day!

the correct answer is true

@abhisar @Directrix @shrutipande9
Farmer Scott is one of the best farmers in town. During the middle of the corn growing season, Farmer Scott had to travel out of town for two weeks, and he left his acres of corn plants alone with no chemicals or other protection.

In terms of succession, which of these best describes what Framer Scott returned to after the two weeks?
A)
Small weeds began to grow and develop.
B)
There was no distinct change in the corn fields.
C)
All of the corn died due to a rampant corn disease.
D)
The corn mutated to form a new species of vegetable.,

Answers

You can safely rule out C and D as they are a bit ridiculous. The correct answer is A. In the middle of the growing season, there will be distinct changes, in the form of weeds popping up.

TEN MEDAL QUESTION
Post an example of a conflict that can arise during a workout, how you can recognize it, and how you can resolve it. For example, you could post that a side stitch, a sharp pain under the ribs, can cause conflict while running. The best way to relieve it is to stretch the cramping muscle. Extending one's arms overhead and taking deep breaths can help relax the muscle.,

Answers

When running, one conflict that might arise is how far you are able to run without stopping for water. You might want to go a very long way and be unfamiliar with the area, so it is important to have scouted ahead for any place that can offer a drink. Otherwise, you will find yourself wondering whether it is safe for you to continue further away from home without adequate hydration.

Since dna has a negative charge in which direction will it go in the gel if there are bubbles what does this mean

Answers

The direction will be toward the positive charge on the other end. If there are bubbles it means the current is running. DNA  are molecules which stores genetic material. DNA is negatively charged because of the phosphate backbone since they are negatively charged also. To separate DNA using agarose gel electrophoresis, the DNA is loaded into precast wells in the gel and a current applied. Since the phosphate backbone of the DNA molecule is negatively charged, the fragments of DNA will migrate to the positively charged anode.

Which of the following is the best definition of energy? (Points : 1)
the ability to generate electricity

the ability to generate heat

the ability to do work

the ability to produce fusion

Answers

Energy is best defined as "the ability to do work". This is the fundamental definition of energy which has been used by physicists for a very long time, and highlights the most important definitional property of energy - be it kinetic or potential - the capability to do work on objects by causing them to move.

The ability to do work

The most common definition of energy is the work that a certain force can do. Due to a variety of forces, energy has many different forms that can be grouped into two major categories: kinetic energy and potential energy.

However, in this scenario, Option 3 is correct.

An inversion occurs along part of a chromosome. How does the inversion most likely affect the region in which it occurs?

A. Recessive alleles in the region become dominant alleles.

B. The coding sequence in the region disappears entirely from the cell.

C. Multiple frame-shift errors in the region are triggered after translation.

D. The information in the region is read differently during transcription.

Answers

I think the answer is A Because i remember taking this test and yea...thats my answer 20/10

Answer: The correct answer is-

D. The information in the region is read differently during transcription.

Inversion is a type of mutation ( that is permanent change in the genetic material of living organism) that occurs after break in a chromosome, which is followed by the rearrangement of the broken segment.

In other words, when a segment of chromosome is broken and reversed/rearranged within itself, it is called inversion.

It leads to change in the DNA sequence, due to which information in the region ( that is genetic information present in the form of nucleotide sequences)  is read differently during transcription ( conversion of DNA to mRNA).

Thus, option D) is the right answer.

Explain how ozone in the stratosphere is formed.

Answers

Stratospheric ozone is formed naturally by chemical reactions involving solar ultraviolet radiation (sunlight) and oxygen molecules, which make up 21% of the atmosphere. In the first step, solar ultraviolet radiation breaks apart one oxygen molecule (O2) to produce two oxygen atoms (2 O) (see Figure Q2-1).

Sunlight's UV rays (sunlight) and the oxygen molecules that make up 21% of the atmosphere interact chemically to create stratospheric ozone in a natural process.

What results in formation of stratosphere, earth atmosphere?

The very significant ozone layer is found in the stratosphere. The ozone layer aids in shielding us from the sun's ultraviolet (UV) rays.

In actuality, the ozone layer filters out the majority of the UV rays the sun emits at us. Without this layer of defense, there would be no such thing as life as we know it.

Oxides of nitrogen and volatile organic compounds, usually mentioned to as hydrocarbons, undergo chemical substance interactions that lead to ozone.

Both close to the earth and high in the atmosphere, this reaction is possible.

Therefore, The stratosphere contains the famed ozone layer.

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Which process initiates the passage of half of a parent's dna to offspring?

Answers

MEIOSIS

This is a process by which a cell divides twice producing 4 cells. These cells contains half of the original  genetic material. Sex cells usually undergo these process. During meiosis 1 a cell divides twice producing four daughter cells.  There 5 phases in meiosis 1 which are Interphase, Prophase, Metaphase, Anaphase, Telophase and cytokinesis.The second time the cell divides is called meiosis II. These also have phases as the meiosis I but cellular changes is different.

The oceans absorb carbon through three processes that draw atmospheric carbon dioxide into the oceans: the physical carbon pump, the biological carbon pump and the carbonate pump. Molecules of CO2 enter the ocean by diffusing into the sea surface waters and dissolving as part of the physical carbon pump. All BUT ONE variable influences how much CO2 will diffuse in any given location. That is A) wind. B) salinity. C) water temperature. D) geographic location.

Answers

Answer:B

Explanation:

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The variable that does NOT influence how much CO2 will diffuse in any given location is D) geographic location. The other three variables - wind, salinity, and water temperature - can all impact the amount of CO2 that diffuses into the sea surface waters.

For example, higher wind speeds can increase the rate of gas exchange between the atmosphere and ocean, leading to more CO2 entering the ocean. Salinity can affect the solubility of CO2 in water, and water temperature can impact the rate of biological activity that consumes or releases CO2.

The correct answer is geographic location, as this factor does not directly influence how much CO2 diffuses into the ocean. Wind, salinity, and water temperature can affect the solubility of CO2 in water and therefore impact the amount of CO2 that diffuses into the ocean in any given location.

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Is it possible to have erosion without depositon explain

Answers

Yes, a circumstance would be where some of the parent rock was dissolved by water. Another would be where acid mine drainage could dissolve a carbonate, thus releasing the CO2 to the atmosphere. Was this answer helpful?
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The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass. Starting with 190 grams of a radioactive isotope, how much will be left after 4 half-lives? Translate this sentence into an equalitythe quotient of x and 7 is at most -24 PART A. At what point does the tone of The Fruit Garden Path change? A. line 5 B. line 8 C. line 9 D. line 11 The Fruit Garden PathThe path runs straight between the flowering rows, A moonlit path, hemmed in by beds of bloom, Where phlox and marigolds dispute for roomWith tall, red dahlias and the briar rose.'T is reckless prodigality which throws Into the night these wafts of rich perfume Which sweep across the garden like a plume.Over the trees a single bright star glows. 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