Which organism would be classified as an echinoderm?

Answers

Answer 1

The phylum Echinodermata contains organisms that share a specific set of characteristics, including spiny or bumpy skin. There are five different classes of animals in the phylum: starfish, brittle stars, echinoids (which include the sea urchins and sand dollars), sea cucumbers, and sea lilies.

So starfish, brittle stars, echinoids, sea urchins crinoids, sew cucumbers

Answer 2

sea star is the answer

Related Questions

9. The _______ is the temperature to which air must be cooled at constant pressure to reach saturation.

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Is the temperature to which air must be cooled at constant pressure to reach saturation?Saturation is the point at which the air holds as much water vapor as it possibly can.) The ______is the temperature to which air must be cooled at constant pressure to reach saturation. Until this temperature is reached, condensation cannot occur and rain cannot fall.

I think its dew point

The genetic code in dna depends on the order of what

Answers

The genetic code on DNA depends on the order of the bases.
Also, the process that happens in the ribosome is called translation.

Final answer:

The genetic code in DNA depends on the order of nucleic acid bases, which determines the sequence of amino acids in a protein.

Explanation:

The genetic code in DNA depends on the order of nucleic acid bases. The order of these bases determines the sequence of amino acids in a protein. Each amino acid is coded for by a specific sequence of three nucleotide bases called a codon.

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The sodium-potassium pump plays an important role in the water balance of cells.in terms of osmosis, explain the consequences of the sodium-potassium pumps not working;

Answers

Osmosis is the process by which water molecules move through a semi permeable membrane from the region of lower solute concentration to the region of higher solute concentration. The sodium potassium pump plays a key role in the process of osmosis in the cells. If the sodium potassium pump is not working, excess potassium or sodium will accumulate either outside or inside of the cells and this will cause osmotic imbalance in the body, with the cells either shrinking or bursting.

Physical movement increases __________ to the brain, helping children think well and focus better.
a. blood flow
b. carbon dioxide
c. vitamin c
d. antioxidants

Answers

blood flow is the answer

Select all of the answers that apply. Four laws or principles are involved with the study of stratigraphy. They are _____. 1 law of original horizontality 2 law of superposition law of original lateral continuity 3 law of gravity and oppositional force 4 law of cross-cutting relationships

Answers

Four laws or principles are involved with the study of stratigraphy. They are law of original horizontality, law of superposition law of original lateral continuity, and law of cross-cutting relationships.

Answers that apply: 1, 2, and 4 or the first, second, and fourth option.

Answer:

Option (1), (2) and (4) are the correct

Explanation:

According to the Steno, the four laws that deals with the study of stratigraphy are as follows-

Law of Superposition- this law states that in a geochronological sequence the rock layers that are present at the top are the youngest and the rock layers that lies at the bottom are the oldestLaw of Original horizontally- this law states that the sediments usually gets deposited in a horizontal manner due to the influence of gravityLaw of Cross-cutting relationship- this law states that in a particular area when the igneous bodies (such as batholith, plutons etc) intrudes other rocks, then these intruding features are generally younger than the rocks which it cuts, maintaining a cross-cutting relationshipLaw of lateral continuity- this law states that the the sediments at first are deposited and extended laterally in every direction until they meet another geological feature that interrupts its path of lateral extension

Lincoln is a 27 year-old man who has been experiencing strange medical symptoms over the past year. HMake a list of the glands, target organs and hormones you have investigated in Lincoln’s case. Begin with the pituitary gland. Beneath
Activity 2.3.2: Hormones Gone Wild Teacher Version – Page 1each, describe the function and what hormones it involves (which gland produced if for which organ and why it was needed).
3. Research the connection between the pituitary gland and the hypothalamus, another structure in the brain. The hypothalamus and the pituitary form the chief link between the nervous and the endocrine system. Take notes in your laboratory journal.
4. Use Inspiration to create a feedback loop or diagram that shows how the body regulates the level of thyroid hormones in the body (and thus maintains normal metabolism). This loop or diagram should include the pituitary gland and the hypothalamus as well as the names of important hormones. Make sure to show how hormones exert feedback to maintain proper thyroid function. Draw arrows to and from important glands and hormones. Think about how the levels of one hormone may impact the release (or lack thereof) of another hormone.
5. Refer back to your blood glucose feedback loop from Activity 2.3.1 for ideas on how to organize your thinking and to design your loop. However, as long as you can explain your diagram, you are free to use whatever format you feel displays a clear relationship between the glands and demonstrates the idea of feedback.e knows something is wrong, but doctors are having a hard time piecing together the clues. Previous doctors’ notes report:

Answers

Its somethings like; Lincoln has noted a gradual enlargement of his body tissues. He is long past puberty, but the bones of his face and jaw seem to be growing thicker and changing shape. Even his hands and feet look larger (I don't know all of it but that's most)

Which of these best defines the rate of photosynthesis?

A- where photosynthesis happens.
B- the speed of photosynthesis.
C- when photosynthesis happens.
D- endothermic

Answers

B) because speed talks about the rate at wich it happens

The increase of muscle size and muscle fibers is called:

Answers

Answer:hypertrophy

Explanation:

what did the narrator describe as tadpoles?what did Leeuwenhoek predict was within the heads of these little tadpoles?

Answers

The narrator described sperm as tadpoles. Leeuwenhoek predicted that little men were within the heads of the little "tadpoles".

two divers are swimming in clear ocean water at a depth of 150 m. The first diver is wearing a white wet suit. When the second diver sees the first diver at that depth, which of the following colors would he see?

Answers

The second divers is going to see COLOR BLUE.
Water has the ability to transform light, thus colors appear differently in water. Generally, water absorbs warm colors and scatter the cooler colors. In clear ocean water, visible light decreases approximately 10 folds for every 75 meters that one descend. Thus, at the depth of 150 M, the white suit will appear to be blue in colour.

Note the question is missing the multiple choice answers to choose from, however, we can still provide a meaningful answer.

Light from the sun is a composite of a full spectrum of light, ranging from very long wavelengths (such as radio waves) all the way to very short wavelengths (such as xrays and gamma rays). Visible light - the light we can see - occupies a tiny slither of the electromagnetic (light) spectrum and ranges from blue/violet (around 400nm wavelength) up to red (around 700nm wavelength).

Now back to the question. Water is much more dense than space or air, and as a result, water causes light to attenuate when it passes through it. This means parts of the light are absorbed as they travel through the water medium. Generally, higher energy light has more penetrative power and the energy contained in light is proportional to it's wavelength; the shorter the wavelength the higher the energy. This means blue light (400nm) is higher in energy than red light (700nm). So, as light passes though water, the lower energy wavelengths are attenuated (absorbed) first. This means red disappears first, then followed by orange, yellow, green, and finally blue and ultraviolet. At 150m depth, depending on how clear the water is, only blue light would remain and it would be quite dark.

The nurse is preparing to administer digoxin to a patient who has heart failure. the patient reports nausea, vomiting, and a headache. the nurse notes a respiratory rate of 18 breaths per minute, a heart rate of 58 bets per minute, and a blood pressure of 120/70 mm hg. what will the nurse do next?

Answers

The nurse will administer the medication and then, using a stethoscope or monitoring equipment, will get a new heart rate once the mess are on board and see if the patient's heart rate has increased.

What do the respiratory system and cellular respiration have in common?

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Oxygen plays an important/ key role in both systems.

The respiratory system and cellular respiration have oxygen in common because: Oxygen plays vital roles in both systems.

Oxygen plays an important role in both systems

Respiratory system comprises of organs such as the lungs, blood vessels, airways which enable you to breathe in oxygen and also give out carbon dioxide.

Oxygen is key to the respiratory system as all organs and vessels associated with is works in getting oxygen to the cells of the body, and also giving off carbon dioxide.

In same vein, cellular respiration makes use of oxygen during the breakdown of glucose to release energy as well as carbon dioxide and water.

See attachment for the diagram showing a a simple equation of cellular respiration involving oxygen.

In conclusion, the respiratory system and cellular respiration have oxygen in common because: Oxygen plays vital roles in both systems.

Answers

a. True. They travel via Signal Sequences, which are a particular amino acid sequence that directs proteins to their proper cellular compartments; none-> cytosol; end of sequence-> mitochondria/chloroplasts; internally in sequence-> nucleus

Thick mucous gland secretions, elevated sweat electrolytes, meconium ileus, and difficulty maintaining and gaining weight are associated with which autosomal recessive disorder?

Answers

The symptoms given above are associated with CYSTIC FIBROSIS.
Cystic fibrosis is a genetic disorder that usually affect the lungs, but it can also affect the liver, pancreas, intestines and the kidney. Symptoms include difficulty in breathing, coughing up of mucus, etc. The disease causes persistent lung infections and limit the ability to breath over time.

At which stage of mitosis are chromosomes usually photographed in the preparation of a karyotype?
a.prophase
b.metaphase
c.anaphase
d.telophase
e.interphase

Answers

hi cupcake :wink: i'm jk

the answer is b.) metaphase

To synthesize one glucose molecule, the calvin cycle uses __________ molecules of co2, __________ molecules of atp, and __________ molecules of nadph.

Answers

What are the words that can go in the blanks?

Answer:

Explanation:

6,18,12

Which of these microorganisms is most likely to be found in the human stomach?

Answers

This should be Helicobacter pylori.
hope this helps!

Why is it important for each cell to be surrounded by a cell membrane that prevents large molecules from leaving the cell?

Answers

Hi there.

The cell membrane keeps organelles and ribosomes from exiting the cell. When molecules enter the cell, the membrane also prevents it from leaving as the molecule is needed to carry out processes.

~

props to the flashcard on Quizlet,

describe one cellular activity that uses the energy released by ATP

Answers

A cellular activity that uses energy that is released by ATP would be any kind of movement

One of the basic examples of cellular activity, which uses energy released by ATP is the movement of muscles.

• The muscle cells utilize both fatty acids and glucose for their aerobic respiration, and these cells are the prime users of ATP generated by aerobic respiration.

• The muscle cells use ATP mainly for two things, that is, for active transport of calcium ions and the movement of motor proteins.

• The muscle cells use ATP for the active transport of calcium ions into the sarcoplasmic reticulum at the time of muscle contractions.

• For the second time, ATP is used by muscle cells to detach the head of the myosin from the actin filaments at the time of the relaxation of muscles.

Thus, muscular movement is one of the cellular activity, which use the energy of ATP.

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Which best describes an axon with myelin and an axon without myelin?

Answers

The impulse transmission would be faster in the myelin with an axon

Answer:

Explanation:

A FOR REAL

When living yeast cells were placed in congo red dye and examined under the microscope, the yeast cells remained colorless. However, when placed in methylene blue, they became blue. Later, dead yeast cells were placed in congo red dye. These cells turned red. Explain these three observations.

Answers

Well, to be honest, some of that doesn't make sense. We'll take each observation individually.

1. Living yeast cells were placed in congo red dye, but they remained colorless.

This makes sense. Congo red freely diffuses from high to low concentration across the cell membrane, without using any energy. The cell then pumps the molecules back out of the cells, moving them from a low concentration inside the cell to a high concentration outside the cells. This causes living yeast cells to remain colorless in congo red dye.

2. Living yeast cells were placed in methylene blue, and they turned blue.

This is the one that doesn't make sense. Yeast cells that are living contain an enzyme that decolorises methylene blue, whereas dead cells do not. When cells from a yeast sample are suspended in the dye, it penetrates into all the cells, but is broken down only by the living cells. So you can distinguish between living and dead cells by examining them microscopically: dead cells are stained blue and living cells are unstained.

3. Dead yeast cells were placed in congo red dye, and they turned red. This one also makes sense. As I said in #1, living yeast cells actively pump congo red back out of themselves. If the cells are dead, this pumping does not occur, and the congo red stains the cells. The same would be true if you placed dead cells in methylene blue. The enzyme that normally breaks down the methylene blue would not be working because the cell would be dead, and the cell would turn blue. I hope i helped :p

Living cells remain colorless because of the presence of an enzyme. They cannot reduce the stain. Whereas, dead cells can reduce the stain and appear red while stained with congo red dye.

What is Staining?

Staining is a technique used to enhance the contrast in samples to visualize the samples clearly. This makes the identification and observation of samples easy.

Living cells have an active dehydrogenase system which reduces methylene blue stain and dead cells are unable to reduce this stain. Thus living cells are colorless under this stain while the dead cells stain blue.

The Congo red stain is used for staining amyloids in cell wall of plants, fungi, and outer membrane of gram negative bacteria. Congo red is a synthetic dye, used for the differential staining of elastic fibers present in the cells of bacteria and plants.

Yeast are observed to be oval (egg shaped) organism under high resolution microscopes. It is also possible to observe the buds present on some of the yeast cells.

Methylene blue stain is used in determination of cell mortality. If methylene blue stain is applied to a sample, a healthy cell with turn the stain colorless. This is due to the enzymes, which reduce the methylene blue, causing it to lose its color.

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Part b - phases of the cell cycle the cell cycle represents the coordinated sequence of events in the life of a cell from its formation to its division into two daughter cells. most of the key events of the cell cycle are restricted to a specific time within the cycle. in this exercise, you will identify when various events occur during the cell cycle. recall that interphase consists of the g1, s, and g2 subphases, and that the m phase consists of mitosis and cytokinesis. drag each label to the appropriate target. hints at this point, cell commits to go through the cycle. mitotic spindle begins to form. cell divides, forming two daughter cells. dna replicates. non-dividing cells exit cell cycle. centrosome replicates.

Answers

I found the exercise online and this is the answer:
A. Non dividing cells exit cell cycle
B. At this point, cell commits to go through the cycle.- If the cell passed the checkpoint, it can now enter the cycle, starting on the first stage: G1
C. DNA replicates - The cell starts replicating the DNA in the S phase to then later, separate it in two cells.
D. Centrosome replicates
E. Mitotic spindle begins to form. in the M phase, after passing the G2 checkpoint
F. Cell divides, forming two daughter cells.- After passing the last checkpoint, the call can finally start mitosis process.

Do jellyfish have jointed appendages?

Answers

Invertebrates are animals that do not have a bony internal skeleton, although many do have hard outer coverings that provide structure and protection. More than 90% of all animals are invertebrates and they are classified into at least 33 major groups, or phyla. Nearly every phylum of invertebrates has members that live in the oceans. Six phyla of invertebrates that are commonly found in the oceans are: Porifera (sponges); Cnidaria (corals, jellyfish, and sea anemones); Annelida (segmented worms); Molluska (snails, clams, mussels, scallops, squid, and octopuses); Arthropoda (crabs, shrimp, barnacles, copepods, and euphausids); and Echinodermata (sea stars, sea urchins, and sea cucumbers). Each phyla is divided into smaller groups called classes, which is then split into families and then species. Hope it helped!

Jellyfish do not have joined appendages. An example of an animal with joined appendages would be a spider.

Hope this helped!

A physician orders morphine for a client who complains of postoperative abdominal pain. for maximum pain relief, when should the nurse anticipate administering morphine?

Answers

Morphine is a potent analgesic, it blocks the transmission of painful stimuli, it is not ordered by physicians so easily, but if it is prescribed by the doctor for postoperative abdominal pain, the nurse must supply it before the pain becomes severe and give the maximum pain relief.

Answer:clematis once a day

Explanation:

The part of the brain where planning, language and advanced thought occur is:the hippocampus.the amygdala.the cortex.the hypothalamus.

Answers

The part of the brain where planning, language and advanced thought occur is the cortex.
It is the largest part of a human brain, the cerebrum or the cortex. Connected with higher brain function such as thought and action. The cortex also protects the cerebellum.

The cortex, particularly the frontal lobe, is responsible for planning, language, and advanced thought processes. Higher cognition, impulse control, and language production are key functions of the frontal lobe, including areas like the prefrontal cortex and Broca's area.

The part of the brain where planning, language, and advanced thought occur is the cortex, specifically within the frontal lobe of the cerebral cortex. The frontal lobe is critical for cognitive functions and control of voluntary movement or activity. It is the part of the brain that is responsible for higher mental functions, such as thinking, planning, and memory, as well as judgment and impulse control.

The other options provided, such as the hippocampus, amygdala, and hypothalamus, play roles in emotion, learning, and hormone regulation, but not primarily in the higher-level cognitive processes associated with planning and language production. The prefrontal cortex, a part of the frontal lobe, is specifically associated with advanced thought processes, including problem-solving, decision-making, and social behavior. Furthermore, Broca's area, located in the frontal lobe, is essential for language production.

What is the action of the vasopressin hormone released from the client's posterior pituitary gland?

Answers

Vasopressin, or the other name Anti Diuretic Hormone (ADH), has the action of causing the opposite (anti) of a diuretic. I.e., it causes the body to retain sodium, thus retaining water. This has many physiological effects, the majority of which focus around enabling the body to maintain homeostasis when water intake or hydration levels drop.

What substrate is digested by the enzyme protease?

Answers

protein
:333333333333

Passive communicators do all of the following EXCEPT:

Answers

Hey You! The Answer To Your Question Is:

Except stand up for themselves when needed.

I recommend you add the options next time, as most people who haven't already taken the quiz won't know what your question is asking.

I Really Hope This Helped You, Good Luck With Your Studies! =)

Answer:

stand up for themselves when needed

Certain poisons are toxic to organisms because they interfere with the function of enzymes in mictochondria. This results directly in the inability of the cell to

Answers

Certain poisons are toxic to organisms because they interfere with the function of enzymes in mitochondria. This results directly in the inability of the cell to store information.

What is mitochondria?

Many of the same defense mechanisms found in other parts of the cell, such as proteases, lipases, antioxidant enzymes and compounds, chaperones, and DNA repair enzymes—all of which are currently the subject of research—are also found in mitochondria.

Additionally, mitochondria can be recycled via autophagy, including mitophagy, in which specifically damaged mitochondria are selected for lysosomal breakdown, just like some other organelles.

However, they also have certain weaknesses since they lack specific defense mechanisms, as well as particular qualities that can make them more resilient to stressor challenges.

Therefore, Certain poisons are toxic to organisms because they interfere with the function of enzymes in mitochondria. This results directly in the inability of the cell to store information.

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Final answer:

Certain poisons are toxic because they impair the function of mitochondrial enzymes, which leads to the interruption of ATP synthesis in cells, causing cell death. Poisons like cyanide and carbon monoxide are examples that disrupt the essential functions at a cellular level, affecting health and survival.

Explanation:

Impact of Poisons on Mitochondrial Function

Poisons can be highly toxic to organisms by interfering with enzymes in the mitochondria. This disruption directly results in a cell's inability to synthesize ATP (adenosine triphosphate), which is necessary for its survival. Examples of such poisons include cyanide, hydrogen sulfide, and carbon monoxide, amongst others. These toxicants lead to cell death by inhibiting various essential enzymatic functions, preventing the production of ATP, thus crippling the cell's energy supply and leading to its demise.

Mitochondrial poisons target the critical metabolic processes within a cell. Heavy metals and organophosphates like Sarin are examples of agents that bind to enzymes, rendering them inactive. With ATP production impaired, active transport mechanisms fail, and the cell can no longer maintain its ion balance and other critical processes, resulting in cell death. Hence, such poisons have profound effects on the health and functionality of an organism by directly affecting the cellular level.

An understanding of the mechanisms of cell death due to toxic exposure helps predict the outcomes of such poisoning cases. The severity and reversibility of cellular dysfunction depend on the body's ability to overcome the toxicant's effects through repair or adaptation. However, in cases where mitochondrial enzymes are inhibited, the result is often irreversible cell injury or death, thereby compounding the impact on the organism's overall health.

What is more stable a food chain or food web?

Answers

i believe that the food web is more stable

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