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Observe the cut ends of the flatworms using the hand lens or the dissection microscope immediately after cutting.
What do you see?
Are there distinct differences between the two ends?
Observe the cut ends of the flatworms over a period of several days. Do the flatworm halves continue to exhibit the same degree of difference that was seen right after they were cut in two?
What kinds of changes occur in the flatworms as they recover from having been cut in two?

Answers

Answer 1

The above question requires a personal answer about your experience with cutting flatworms. I can't tell you what you saw in this cut, but I'll show you what happens when it occurs.

First of all, you must understand that flatworms are worms with a great capacity for cell regeneration even if several pieces have been cut.

In this case, when a flatworm is cut in half, we can see the following events happen:

At the moment of cutting, the two ends of the flatworm body are equally shaped and are straight ends, without deformations.The ends will not be different if the cut is done accurately, but it may differ slightly.After several days, the ends will present some deformations and will lose the straight shape caused by the blade.Deformations are extremely similar and change similarly.When recovering from the cuts, each side of the flatworm body formed a new flatworm and they are no different, they are the same and they are completely recovered.

This is because the cellular regeneration of flatworms is very fast and allows any part of the flatworm's body to create exactly the same beings, as they have the same genetic makeup.

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Related Questions

a cockroach is a fast-moving insect. how can an animal with an open circulatory system be so speedy?

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Cockroaches have 6 legs and each leg has 3 knees, 18 knees in total. Since the cockroach has so many joints in its legs its can accurately pick up speed when running away from something

An animal like a cockroach with an open circulatory system is so speedy because in these organisms tracheal system delivers oxygen throughout the body.

What is an Open circulatory system?

An open circulatory system may be characterized as a type of circulatory system in which blood vessels are completely absent and blood generally flows freely through the cavities of the body. This type of circulatory system is present in arthropods.

Due to the absence of blood vessels, the flow of blood is extremely high in animals that have an open circulatory system. Apart from this, in cockroaches, oxygen is carried out through the tracheal system because of the absence of the lungs. So, it makes the process so speedy.

Therefore, an animal like a cockroach with an open circulatory system is so speedy because in these organisms tracheal system delivers oxygen throughout the body.

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the type of voltage-gated channel that possesses an inactivation gate that temporarily closes after the channel is active is the

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The sodium channel possesses an inactivation gate that temporarily closes after the channel is active.

In neurons, sodium channels are responsible for the ascending phase of the action potential (depolarization).

Characteristically, this channel has two transmembrane voltage-dependent gates.

When the membrane is depolarized to the threshold, both gates are activated, but since one of them opens rapidly while the other closes slowly, the channel remains open for less than 2-5 milliseconds.

Therefore, we can conclude that the sodium channel is responsible for the depolarization and possesses two gates which one temporarily closes after the channel is active.

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The following list of events happens during meiosis:

Prophase I: Crossing over between homologous chromosomes occurs.
Metaphase I: Tetrads line up at the metaphase plate.
Anaphase I: Tetrads are separated.
Telophase I: Nuclear envelopes reform around the separated chromosomes.
Prophase II: Chromosomes condense.
Metaphase II: Chromosomes line up at metaphase plate.
Anaphase II: Sister chromatids separate into daughter chromosomes.
Telophase II: Nuclear envelopes reform around the daughter chromosomes.
Identify the answer choice that correctly lists the events from above that lead to new genetic combinations in the gametes.

(1 point)

1 and 2

1, 2, and 5

5 and 6

5, 6, and 7

Answers

Meiosis is a form of cell division that occurs in the sex chromosomes. This form of division ensures genetic diversity and also allow for the chromosome set to be halved.

The events from above that lead to new genetic combinations in the gametes include:

Prophase I: Crossing over between homologous chromosomes occurs.

Metaphase I: Tetrads line up at the metaphase plate

(1 and 2) option a.

During meiosis, possibilities of new genetic combinations occurs which allows for variations to exist between the offspring and parents. These ensures that offspring are not entirely identical to the parents and also allow for survival and other benefits.

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Which of the following cells is responsible for maintaining bone and the correct levels of oxygen and minerals?

Answers

Answer:

c. Osteocytes

Explanation: is correct

A 160 lb. college student consumes a bowl of cereal containing 750 Calories in the morning. He then sits quietly in class for 4 hours, and then goes for a 30-minute run. How many Calories did he use, and was it more or less than he consumed?

Answers

Answer:

less

Explanation:

because a 30 min run can only burn 200-500 calories

In the morning, a 160-pound college student consumes a bowl of cereal with 750 calories. 30 minutes of running can only burn 200-500 calories.

What is Calories?The calorie is a type of energy unit. For historical reasons, there are two main definitions of "calorie." The large calorie, food calorie, or kilogram calorie was originally defined as the amount of heat needed to raise the temperature of one kilogram of water by one degree Celsius.Calories are the units of energy released by your body when it digests and absorbs food. The higher the calorie content of a food, the more energy it can provide to your body. When you consume more calories than you require, your body stores the excess calories as fat. Even fat-free foods can be high in calories.

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Which gas is produced as a result of cellular respiration.

Answers

Answer:

Carbon dioxide

Explanation:

Which type of interaction is described below? ________ interactions occur between individuals of two or more different species.​

Answers

Symbiosis is the interaction between individuals of two or more different species

What is different about normal cell division and cancer cell division?

Answers

In contrast to normal cells, cancer cells don't stop growing and dividing, this uncontrolled cell growth results in the formation of a tumor. Cancer cells have more genetic changes compared to normal cells, however not all changes cause cancer, they may be a result of it

What is the large blood vessel that carries blood from the heart to the lungs

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Answer:

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pulmonary artery: A blood vessel that carries blood from the heart to the lungs, where the blood picks up oxygen and then returns to the heart.

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What blood vessels carry blood from the heart to the lungs?

Which blood vessel carries oxygenated blood away from the heart to the lungs?

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Questions & answers

Quora

Question

What are the blood vessels that carry blood to and from the lungs?

Answer · 5 votes

To expand on Dr. Herman’s answer. The pulmonary artery, originating in the right ventricle, carries deoxygenated blood from the heart to the lungs (most other arteries, though, carry oxygenated blood), to be oxygenated in the lungs. The pulmonary veins, terminating in the left atrium, carries oxygenated blood (most other veins, though, carry deoxygenated blood) from the lungs to the heart, to be distributed to the rest of the body.

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Question

Blood vessel that carries blood from the heart to the lungs is: a. The Pulmonary Artery. b. The...

Answer · 0 votes

The correct answer is _The Pulmonary artery_. The blood vessel that carries blood from the heart to the lungs is the Pulmonary artery. Arteries...

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Socratic

Question

Which blood vessels carry blood away from the heart?

Answer · 0 votes

Arteries & Veins. Explanation: The ARTERIES are major blood vessels connected to your heart. 1. The pulmonary artery carries blood from the right side of the heart to the lungs to pick up a fresh supply of oxygen. 2. The aorta is the main artery that carries oxygen-rich blood from the left side of the heart to the body. 3. The coronary arteries are the other important arteries attached to the heart. They carry oxygen-rich blood from the aorta to the heart muscle, which must have its own blood supply to function. The VEINS also are major blood vessels connected to your heart. 1. The pulmonary veins carry oxygen-rich blood from the lungs to the left side of the heart so it can be pumped to the body. 2. The superior and inferior vena cavae are large veins that carry oxygen-poor blood from the body back to the heart.

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What name is given to the blood vessel that carries blood from the heart to the lungs? (a)...

Answer · 0 votes

The correct answer is option A. During pulmonary circulation, deoxygenated blood from the heart flows to the lungs through pulmonary arteries. The...

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Brainly.in

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Name the large blood vessels that carry blood from the heart to lungs

Answer · 2 votes

Hii mate ☺☺pulmonary artery: A blood vessel that carries blood from the heart to the lungs, where the blood picks up oxygen and then returns to the heart. pulmonary vein: One of four veins that carry oxygen-rich blood from the lungs to the heart.

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Wyzant

Question

Which vessel in the heart receives deoxygenated blood? a. Aorta b. Pulmonary Vein c. Vena Cava d. Pulmonary Artery

Answer · 0 votes

B. Pulmonary ArteryAs a general rule, all Arteries in an adult human carry oxygenated blood. (Away from heart)Veins (think venir "to come" in Spanish) will carry deoxygenated blood back to the heart. The exception to this is the pulmonary vessels as the pulmonary veins bring back freshly oxygenated blood exchanged at the lungs. Hope it helps!

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Toppr

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Blood vessel carrying blood from the lungs to the heart is

Answer · 3 votes

A blood vessel carrying blood from the lungs to the heart is pulmonary vein. There are four pulmonary veins, two from each lung that drains into the left atrium of the heart. Pulmonary veins are responsible for carrying oxygenated blood from the lungs back to the left atrium of the heart. This differentiates the pulmonary veins from other veins in the body, which are used to carry deoxygenated blood from the rest of the body back to the heart.So, the correct answer is 'Pulmonary vein'.

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Byjus

Question

Which of the following blood vessel carries carbon dioxide rich blood from heart to the lungs-

Answer · 0 votes

The correct option is B Pulmonary arteryArteries transport oxygen rich blood to all parts of the body from the heart. Veins transport carbon dioxide rich blood ...

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Brainly.in

Question

large blood vessel that carries blood away from the heart?

Answer · 1 vote

Answer :-ArteryExplanation :-The Pulmonary Artery carries blood from the right side of the heart to the lungs to pick up a fresh supply of Oxygen.Hope it Helps !!!!

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Vedantu

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Name the blood vessel which carries oxygenated bloodI.Pulmonary veinII.Anterior vena cavaIII.Pulmonary arteriesA) I onlyB) II onlyC) III onlyD) I and a low percentage of carbon dioxide is known as oxygenated blood. It has a bright red appearance and moves from the circulation.

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Name the blood vessels that carry blood from the lungs to the heart

Blood vessels that carry blood away from the heart are

Severe combined immune deficiency (SCID) describes a condition in which neither _____ nor _____ are functional. Question 1 options: innate; acquired immune responses MHC class I; MHC class II molecules T-cell-dependent antibody responses; cell-mediated immune responses classical; alternative pathways of complement

Answers

Answer: Cell dependent antibody responses; cell-mediated immune responses

Explanation: We know that this is an immune deficiency, so it has to do with something in the immune system and its immune cells. The cells of the immune system help to make sure things travel safely as well as the antibodies they produce.

Use examples to explain how the geosphere interacts with two other of Earth's spheres. Explain the interaction for each using complete sentences. HELPPPP

Answers

Several examples of sphere interactions can be inferred from this photograph: Humans (biosphere) built a dam out of rock materials (geosphere). Water in the lake (hydrosphere) seeps into the cliff walls behind the dam, becoming groundwater (geosphere), or evaporating into the air (atmosphere).

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Answer: Dont have one just wanted to help this person get brainliest

Explanation: I like helping

4. View of space from earth keeps on changing because earth is.....?​

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Answer:

Earth does not always spin on an axis running through its poles. Instead, it wobbles irregularly over time, drifting toward North America throughout most of the 20th Century (green arrow). That direction has changed drastically due to changes in water mass on Earth.

Explanation:

small substances are passively moved from the blood to the filtrate in:

Answers

Answer:

I believe it would filter in the Glomerular filtration.

Explanation:

I dont think you really need one based on the question.

Anwser this Please Thank you

Answers

Answer:

1. It can make people feel better and respected

Explanation:

Arteries have high blood pressure
and are fairly deep in your body.
What is the function of the
arteries?
A
delivering OXYGEN-RICH blood to the body
В.
delivering OXYGEN-POOR blood back to
the heart
Using Alternative
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All Rights Reserved.

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Answer:

A. Delivering Oxygen-rich blood to the body.

Explanation:

I hope this helps!

Answer:

a. delivering oxygen - rich blood to the body

Explanation:

Arteries are the blood vessels that deliver oxygen-rich blood from the heart to the tissues of the body.

Edpuzzle: Fermentation - Amoeba Sisters

Answers

Answer:

=amoeba sisters

Explanation:

Can climate changes be linked only to the greenhouse effect? Why or why not?

Answers

An increase in the atmospheric concentrations of greenhouse gases produces a positive climate forcing, or warming effect. ... The warming effect associated with carbon dioxide alone increased by 36 percent

Your body's 2nd choice of food group to break down for energy?

Answers

Answer:

protein

Explanation:

because it has many functions andreplaces most nutrients

1. What charts, tables, or drawings would clearly show what you have learned in this lab?
Each chart, table, or drawing should have the following items:
a. An appropriate title
b. Appropriate labels

Answers

The answer is

B. Appropriate labels

What is the process in which a hydrogen ion brakes off of the water molecule forming one H+ ion and an OH- ion

Answers

Answer: Neutralization.

Explanation:  When a base and an acid are mixed, the hydroxide ion and the base combines with the hydrogen ion from the acid to form water. This process is called neutralization.

_____ is the natural, temporary absence of consciousness from which a person can be aroused by normal stimulation.

Answers

Answer:

Sleep

Explanation:

A teacher showed this animal to students on a field trip. Which tool will the students use to record the animal's behavior? A. Graduated cylinder B. Notebook C. Tape measure D. Hand lens​

Answers

Answer:

note book

Explanation:

nothing else would work

Identify the mutation below that would be passed on to a living, fertile offspring if it happened in a parent.(1 point)

DNA replication errors that take place in somatic, or body, cells that are repaired by the cell

UV radiation exposure causes a mutation in a skin cell that results in the formation of cancer

a chromosomal mutation that affects a sperm cell, deactivating a crucial gene involved in development

an insertion mutation in an egg cell that deactivates a gene for hair color, resulting in a viable error

Answers

Answer:

an insertion mutation in an egg cell that deactivates a gene for hair color, resulting in a viable error

Answer:

Option 4. an insertion mutation in an egg cell that deactivates a gene for hair color, resulting in a viable error.

Explanation:

Only germline mutations are hereditary in nature i.e., that can be passed on from the parent to the offspring. Examples of hereditary mutation include Sickle cell anemia or hemophilia.Germline mutation: Any noticeable genetic changes in the germ cells of the body that is passed on from the parent to off spring.Mutations such as somatic cell mutation, chromosomal mutation, silent mutations are not hereditary.Option 4 talks about the mutation in egg cells i.e., the reproductive cell which affects the phenotypic traits such as hair color. The change in the phenotypic trait means that it is a genetic mutation of the egg cell as phenotypic changes only occur as a result of genetic mutation. Hence, any detectible mutation in the germ cell can pass on from a parent to offspring.

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You are looking at a stained smear of horse blood and you see a leukocyte with large red granules in its cytoplasm. What cell are you most likely seeing

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Looking at a stained smear of horse blood and seeing a leukocyte with large red granules in its cytoplasm. I am most likely seeing a granulocyte, an eosinophil in particular.

Leukocytes are white blood cells and there are various types of white blood cells including granulocytes, agranulocytes.

Granulocytes are white blood cells present with granules and produced in the bone marrow. There are three types of granulocyte; they include eosinophil, basophil and neutrophil.

Eosinophils are white blood cells with large granules and they stain red with dye. Their nucleus is also made up of two unsegmented lobes.

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what is the answer tho just asking?

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Answer:

I don't see any thing lol

¿Cuales son las funciones vitales de la célula?

Answers

Answer:

La célula es el ser vivo más simple y, por lo tanto, realiza sus tres funciones vitales: Función de nutrición. Función de relación. Función de reproducción.

Explanation:

Answer:

Cells can play out the three imperative capacities: nourishment, relationship, and generation.

Explanation:

Why is food web more practical in nature than food chain

Answers

Answer:

Hey mate.....

Explanation:

This is ur answer....

A food web is a more realistic way of portraying an ecosystem than a food chain because food chains imply that organisms only eat one type of organism which is rarely true. In a food chain predators occupy higher levels than their prey. Food webs are more complicated diagrams that are not purely linear.

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Explain how various depressants affect nervous system activity and behavior (alcohol, barbiturates, and opiates)

Answers

Answer:

They kill you

Explanation:

They kill you

Question 1 of 5
How do stories differ from scientific explanations?
A. Stories avoid presenting bias.
B. Stories are based on evidence.
C. Stories are based on imagination.
D. Stories are always negative.
SUBMIT

Answers

The answer is C. Stories are based on imagination
The answer is C stories are based

true or false along with natural selection,genetic drift has profoundly affected the evolution of human traits throughout our species history

Answers

Answer:

yes

Explanation:

due to drift / variation human has been able to atttain high and advanced level of intelligence and development

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Guys plz i need those answers as soon as possible good communicators are ______ and effective. that is, their messages are transmitted in a short time and people understand them. How does the equation change when the radius changes? Unlike h and k, why is r always positive? 2)Look at the panel on page 136 in which the narrator is pressed between her mother and grandmother. What can you infer from the art that is not stated directly in the text? What clues can you use to make this inference? What are differences between the structures ofDNA and RNA? How to memorize the multiplication table games. If the silver accounts for 84% of the bar's weight, what is the weight of the silver? Help plz. I think the starting number is 100% Buu I don't know. Mikey's family is taking a road trip. Their car can travel no more than 260 miles without needing to refill the gas tank. They have traveled 112 miles since they last filled the gas tank.Mikey knows that the inequality representing this situation is 112+x260.Select from the drop-down menu to correctly interpret the solution of this inequality.Mikey's family can drive at most 148 more miles before they need to refill the gas tank.Answers choices are:More than 372More than 372at most 148at least 148 As soon it cut a piece of an outdoor potted plant and brings it inside and place is it in a vase. A few weeks later, the student notice is that not only is a plant so alive, it has roots. The student plans this cutting into a pot with soil, and he grows along side the original point where it came from. Which explanations best match with the description an image shown here in the scenario? Select all that apply. music performed by deaf artists, adapted for deaf listeners, or interpreted into asl can be considered which of the following? deaf music mainstream music*** streaming music silent music Find the slope of a line that passes through each pair of points. (0, 1) (2, 7) 2) (4, 5) (1, 1) 3) (1, -2) (4, 7) Lolitas team meets every Tuesday morning. Lolita always brings doughnuts to these meetings, and she always starts the meeting by asking whos had a big success that week, which encourages participation. Lolitas habitual actions were developed during the ____________________ stage of team development.a. stormingb. preformingc. formingd. norming ben put 1000 into a savings account. the interest rate was compound at 0.65% per year. at the end of x years he had made 53.20 in interest show that x=8 How did the author organize the information in the section ""Jewish Revolts""? Watson and Rayner's study of Little Albert demonstrated how specific fearsA. can interfere with the process of learning.B. can be used as negative reinforcers.C. are acquired through observational learning.D. may be produced through classical conditioning.E. are highly hereditable from biological parents. how do ectotherms primarily control their body temperature? true or false? Services performed one month ago cannot be submitted for reimbursement. There are a number of stylistic characteristics of Dogon sculpture. Which of these is NOT a characteristic of Dogon sculpture? aHorsemen, musicians, women with vessels on their heads, and figures bending from the waist are all found in Dogon sculpture. bDogon sculpture is often made from metalwork and carved ivory. cThe human figure is often represented in simple forms. dSome examples of Dogon sculpture include figures with arms raised (perhaps in worship). What is the theme of chapter 2 Call of the wild?Please help.