Please, someone, help me with this asap!

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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Carbon dioxide

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1. It can make people feel better and respected

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Why is food web more practical in nature than food chain

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

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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.

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:

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

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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).

(PLEASE MARK ME AS BRINLIEST)

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

Explanation: I like helping

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

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Answer:

I believe it would filter in the Glomerular filtration.

Explanation:

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

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

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Answer:

They kill you

Explanation:

They kill you

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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what is the answer tho just asking?

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Answer:

I don't see any thing lol

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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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
Server
All Rights Reserved.

Answers

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.

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

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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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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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Answer:

yes

Explanation:

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

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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Answer:

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Explanation:

Answer:

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

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Question 1 of 5
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D. Stories are always negative.
SUBMIT

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

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

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Answer:

c. Osteocytes

Explanation: is correct

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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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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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

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Which blood vessels carry blood away from the heart?

Answer · 0 votes

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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

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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

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

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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

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The answer is

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