which specialized structures are unique to the cnidarians?

Answers

Answer 1

Explanation:

Cnidarians contain specialized cells known as cnidocytes (“stinging cells”) containing organelles called nematocysts (stingers).

Answer 2

Cnidarians have stinging cells which are known as cnidocytes. This is the unique feature of cnidarians.

What are cnidarians and their characteristics?

The class Soft-bodied stinging creatures like corals, sea anemones, and jellyfish are categorized as Cnidaria. Nearly every ocean ecosystem contains cnidarians. They may survive in warm or cold, shallow or deep water. Freshwater is home to a few species. Cnidarians can either live alone or in colonies.

Cnidarians share a number of fundamental traits. Cnidaria is all aquatic organisms, primarily marine ones. All of them have stinging tentacles called nematocysts that they utilize to capture prey. Cnidarians have just two body layers: the ectoderm and endoderm, which are divided by a layer that resembles jelly and is known as the mesoglea.

Thus, cnidocytes are unique features of cnidarians.

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Related Questions

What are MAD (mitotic arrest deficient) proteins and when are they important in the cell cycle?

Answers

Answer:

The mitotic arrest deficient protein MAD2B (MAD2L2) is a member of a MAD family of proteins and shows 48% similarity to MAD2 (MAD2L1) [1], [2]. Both MAD2 and MAD2B can bind to the anaphase promoting complex or cyclosome (APC/C), which is a downstream target of the mitotic spindle checkpoint.

MAD (mitotic arrest deficient) are proteins related to spindle cell cycle checkpoint and it is important since they prevent the segregation of sister chromatids until all have bound to the spindle.

The cell cycle ensures the duplication of the genome and its distribution in daughter cells by passing through a coordinated and regulated sequence of events.

A series of checkpoints guarantee the orderly progression of the phases of cell division and the correct distribution of the duplicated genetic material in the daughter cells.

The checkpoints during mitosis are:

At the end of stage G1 and before S.

Before anaphase in mitosis.

DNA damage checkpoints in G1, S or G2.

The checkpoint before anaphase in mitosis guarantees the separation of chromosomes, and operates by activating the Mad2 protein that prevents the degradation of segurin, until the conditions are appropriate.

That is, the Mad2 protein prevents the segregation of sister chromatids until they have all bound to the spindle.

Therefore, we can conclude that MAD (mitotic arrest deficient) are proteins related to spindle cell cycle checkpoint and it is important since they prevent the segregation of sister chromatids until all have bound to the spindle.

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The Mississippi river carries sediments into the Gulf of Mexico. What do you think will happen to the sediments after a few million years?.

Answers

They build up and create an underwater barrier or island until they reach the surface

Answer:

Explanation:

The Mississippi River carries tons of tiny rock fragments called sediments into the Gulf of Mexico. What do you think will happen to these sediments after a few million years? Gizmo Warm-up Over millions of years, rocks are broken down and transformed into other rocks. The Mississippi river carries sediments into the Gulf of Mexico. What do you think will happen to the sediments after. The Mississippi river carries sediments into the Gulf of Mexico. What do you think will happen to the sediments after a few million years?

A frameshift mutation that results in the insertion of three nucleotides is often less deleterious than a mutation that results in the insertion of one nucleotide. Why?

Answers

A frame shift mutation that results in the insertion of 3 nucleotides doesn’t reading frame of the downstream codons and proteins they will be made into.

A mutation that inserts a single nucleotide ultimately will change the reading frame and all of the codons (3 nucleotides) downstream of that insertion will make a different protein than they were suppose to or a stop codon could be made which will completely stop that protein from being made.

Example: AUG UAU ACU CAC
The example above will encode for the following proteins.

met, Tyr, Thr, His

3 nucleotide insertion in this example could be:

AUG UAU AAU ACU CAC

met, Tyr, Asn, Thr, His

1 nucleotide insertion mutation:

Example: AUG UAA U ACU CAC

Met, stop codon

Nucleotides after the A insertion are not made into proteins.

If I had a section of DNA that contains 350 nucleotides and the A's and Ts made up 200 of
those nucleotides, how many As
Gs
Cs
and Ts
do I have?(.5 points each response)

Answers

Answer:

100 A

100 T

75   C

75   G

Explanation:

there will be an equal amount of thymine and adenine since they bind together so, 200/2 = 100 each

now there is 150 nucleotides left

guanine binds to cytosine so they also have an equal amount, so 150/2=75

Given, the number of nucleotides in the section of DNA = 350Nucleotides in DNA are of four types - Adenine (A), Guanine (G), Thymine (T), Cytosine (C).Adenine pairs with Thymine while Guanine pairs with Cytosine.Given, there are 200 nucleotides made by Adenine and Thymine.We know, Adenine pairs with Thymine so they will have equal number of nucleotides.So, the number of Adenine = the number of Thymine = 200 ÷ 2 = 100Number of nucleotides made by Guanine and Cytosine = 350 - 200 = 150We know, Guanine pairs with Cytosine so they will have equal number of nucleotides.Therefore, number of Guanine = number of Cytosine = 150 ÷ 2 = 75

Answer:

As = 100

Ts = 100

Gs = 75

Cs = 75

Hope you could get an idea from here.

Doubt clarification - use comment section.

Imagine for a moment that a large artery formed two branches carrying blood to two different organs. Branch 1 has a radius of 0.5 cm and Branch 2 has a radius of 1.0 cm. If the blood flow rate in Branch 1 is 2ml/min, what do you expect the blood flow rate of Branch 2 to be

Answers

The flow rate through Branch 2 is 8·√2 ml/min

Reasons:

Radius of Branch 1 = 0.5 cm

Radius of Branch 2 = 1.0 cm

Flow rate, Q = Velocity, V × Area, A

The area of the Branch 1 = π × 0.5² = 0.25·π

We have;

[tex]\dfrac{v_1^2}{r_1} = \dfrac{v_2^2}{r_2}[/tex]

Which gives;

[tex]v_2 = \mathbf{\sqrt{\dfrac{v_1^2}{r_1} \times r_2}}[/tex]

[tex]The \ velocity \ of \ Branch 1 , \ v_1 = \dfrac{2}{\pi \times 0.5^2} = \dfrac{8}{\pi}[/tex]

Therefore;

[tex]v_2 = \sqrt{\dfrac{\left(\dfrac{8}{\pi} \right) ^2}{0.5} \times1} = 8 \cdot\dfrac{\sqrt{2} }{\pi}[/tex]

[tex]The \ flow \ rate, \ Q_2 = 8 \cdot\dfrac{\sqrt{2} }{\pi} \times \pi \times 1^2 = 8 \times \sqrt{2}[/tex]

The flow rate through Branch 2 = 8·√2 ml/min

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what is the most common type of laboratory assay that is widely used to assess thyroid hormone concentration

Answers

Answer:
B, Immunoassay

HELP PLEASE! TY


A. How are radio waves used to create radar maps?


B. How does reflectivity help meteorologists figure out the weather shown on

radar maps?

Answers

A. These signals have been calibrated against actual visual and location readings for the amount of rain falling and cloud water content.

B. Reflectivity of an object helps indicate the amount of water that a cloud may carry. The stronger the reflected signal from the radar signal sent out, the easier the meteorologist will be able to tell what to expect.

I hope i helped! :D

Which type of molecule transfers information from the nucleus to the cytoplasm in the eukaryotic cell

Answers

Answer:

The RNA molecule transfers information from the nucleus to the cytoplasm in the eukaryotic cell through transcription and translation.

Explanation:

The type of RNA that contains the information for making a protein is called messenger RNA (mRNA) because it carries the information, or message, from the DNA out of the nucleus into the cytoplasm.

Help me Pleaseeeee its only for grade 5​

Answers

What help u need ?
....

Which of the following is the BEST description of osmosis?
A.) as active transport
B.) as requiring a transport protein
C.) as an example of facilitated diffusion
D.) as diffusion of water through a selectively permeable membrane

Answers

Answer:

D

Explanation:

Osmosis is the diffusion of water through a selectively permeable membrane.

Why can mutations in one organism function the same way in a different organism?​

Answers

No only a small percentage of variants cause genetic disorders of the most have no impact on health or development. For example some variants alter a gene DNA sequence.

Which of the following is NOT a muscle of the abdominal wall?

Answers

Answer:

d. Erector spinae

Explanation: is correct

It should be Executor spinae

how do you collect maple leaves in animal crossing

Answers

Answer:

Explanation:

Similarly to how Cherry Blossom Petals work during the Spring, you can get Maple Leaves by searching for a large orange leaf falling from the sky on your island during this limited period in the Autumn. It's random when and where these leaves will fall on your island, so always be on the look out for one to appear!

what is true of a fossil that is classified as a transitional form?

Answers

Given our understanding of the situation, we can confirm that a fossil classified as a transitional form, will show characteristics both of its ancestors and of the descendants that derived from it.

Transitional fossils are just that, fossilized remains of a transitional phase of evolution. What this means is that as species evolve, there will always be a point in time where a species is at a halfway point in between the species from which it comes, and the species that it will become.

These fossils, due to being a halfway point, will have characteristics that belong to their ancestors, but also characteristics that belong to their descendants, which is only logical considering that evolution is a process that spans many generations, not something instant.

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A student is conducting an experiment with biochemical reactions and notices that at high temperatures, the reaction rate decreases significantly.

Which statement best explains the decrease in reaction rate?


The bonds of the substrate were breaking.

The enzyme bonded with the substrate.

The enzyme denatured and changed shape.

The activation energy was increasing.

Answers

Answer:

The enzyme denatured and changed shape

Explanation:

Enzymes are proteins, which can only function properly within a certain range of temperatures- when things get too hot, proteins undergo a structural change and are considered to be 'denatured'. This means that enzymes will not be able to function properly under those high temperatures, because the substrate bonding site would no longer be the right shape for said substrate.

The statement best explains the decrease in reaction rate is the enzyme denatured and changed shape. Thus option 3 is correct.

What are enzymes?

Enzymes are defined as a material that functions as a catalyst in living things, controlling the pace at which chemical processes take place without changing the substance itself.

There are six types of enzymes.

HydrolysesOxidoreductaseLyasesTransferaseLigasesIsomerase

The functions of enzymes are:

In human bodies, enzymes facilitate metabolic reactions. From breathing to digestion, they support.Health issues might result from having a too amount or too little of a certain enzyme. To help their bodies function as they should, certain persons with chronic diseases may need to take enzyme supplements.

Thus, the statement best explains the decrease in reaction rate is the enzyme denatured and changed shape. Thus option 3 is correct.

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Organisms that obtain food by eating other organisms or the

remains of other organisms are called...

Answers

These are secondary consumers (predators/carnivores) . Then the remains of other organism detritus. And animals that feed on the detritus can be called decomposers or detrivores

mendel’s law of segregation states that the two alleles for each gene separate during gamete formation. during which stage of meiosis do the alleles separate?

Answers

anaphase (the chromatids pull apart to opposite ends)

The stage of meiosis at which the alleles separate is anaphase. The correct option is B.

What is meiosis?

Meiosis is a type of cell division of germ cells that produces gametes such as sperm or egg cells in reproducing organisms through gametes.

It entails two rounds of division, resulting in four cells with only one copy of each chromosome.

Meiosis 1 separates a pair of homologous chromosomes and converts a diploid cell to a haploid cell. It is divided into four stages: prophase, metaphase, anaphase, and telophase.

The homologues are pulled apart and moved to opposite ends of the cell during anaphase I.

The sister chromatids of each chromosome, on the other hand, remain attached to one another and do not separate. Finally, in telophase I, the chromosomes arrive at the cell's opposite poles.

Thus, the correct option is B.

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Your question seems incomplete, the missing options are:

Metaphase.Anaphase.Prophase.Embryo formation.

what is the most dangerous animal in the world 2021

Answers

Answer:

mosquitos ...........

describe the negative impacts to an ecosystem of large-scale monocultures of crop
plants and of intensive livestock production

Answers

Answer:

CHECK THIS LINK YOUR QUESTION WILL BE ANSWERED.

https://www.goconqr.com/mindmap/4978927/negative-impacts-on-an-ecosystem-of-large-scale-monocultures-of-crop-plants

Explanation:

which enzyme is responsible for facilitating the hydrogen bonding between nucleotides

Answers

Answer:

The enzyme in charge of this is called a helicase (because it unwinds the helix). Which enzyme is responsible for facilitating the hydrogen bonding between nucleotides in a new DNA model? The DNA enzymes polymerase3 facilitates the hydrogen bond between nucleotides.

What are 2 ways PCR is used in everyday life?

Answers

Answer:

including genotyping, cloning, mutation detection, sequencing, microarrays, forensics, and paternity testing. I hope this helps! Explanation:

what happened to the molecules when you moved the slider to 0°c ?

Answers

Answer:

: Liquid water molecules move more and more slowly until they begin to stick together to form an ice crystal.

Explanation:

Name three components of the cell membrane and explain how each contributes the semipermeable nature of the membrane.

Answers

The principal components of the plasma membrane are lipids ( phospholipids and cholesterol), proteins, and carbohydrates. The plasma membrane protects intracellular components from the extracellular environment. The plasma membrane mediates cellular processes by regulating the materials that enter and exit the cell.

in what part of the given pathway is norepinephrine secreted?

Answers

Answer:

From the varicosities of the postganglionic fiberSource: Mastering A&P #10: The Sympathetic and Parasympathetic System - Quizlet

In the post-ganglionic fibers in the sympathetic division.

Give TWO reasons why mechanical digestion of food is important! Marking brainliest

Answers

Answer:

Mechanical digestion is a purely physical process that does not change the chemical nature of the food. Instead, it makes the food smaller to increase both surface area and mobility. It includes mastication, or chewing, as well as tongue movements that help break food into smaller bits and mix food with saliva.

Explanation:

Hlww Xdxdxdxdxdxdxdxdxd

WILL YOU BE MY FRIEND ......

. Tay-Sachs disease is a human genetic condition where cells build up with large, complex, and undigested lipids. Which organelle must be malfunctioning (not working) in this condition

Answers

Answer:

lysosomes

Explanation:

missing lysosomal enzyme

what type of ions carry the impulse across the synapse from one neuron to the next ?

Answers

It's the sodium ion.

When a neural impulse is fired in both neurons, it is always cause by an excited electron in one neuron moving to the other neuron to destabilize the balance of ions trying to keep them at equilibrium. This action either depolarizes or hyper-polarizes the membrane. If it does, then sodium ions--the key deficient ones--can flow into that region of low charge and maintain that state of low charge, keeping the cell membrane stable.

the auditory ossicles transmit vibrations from the

Answers

Answer:

tympanic membrane across the middle ear.

Explanation:

The tympanic membrane across the middle ear to the oval window of the inner ear.

How many rounds of mitosis produce 64 daughter cells?(1 point)

4


2

6


8

Answers

The correct answer is 6 rounds.

Hope this helps!

Answer:

6

Explanation:

When does renal genesis usually develop?

*it's b. despite the test having a typo

Answers

Answer:

b. In the womb, when the fetus is about 5-12 weeks old

Explanation:is correct. post protected

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