Which of the following traits is not used to identify echinoderms as a monophyletic group? a. Endoskeleton of calcium carbonate b. Pharyngeal slits c. Water vascular system d. Pentaradial symmetry in adult

The question is incomplete, the complete question is;

The equation below shows the products formed when a solution of silver nitrate (AgNO3) reacts with a solution of sodium chloride (NaCl).

AgNO3 + NaCl → NaNO3 + AgCl

(Reactants) → (Products)

In this equation, the total mass of the reactants is

A) equal to the mass of AgCl.

B) less than the mass of AgCl.

C) equal to the total mass of the products.

D) greater than the total mass of the products.

Answer:

C) equal to the total mass of the products.

Explanation:

The  law of conservation of mass states that, in a given chemical reaction, mass can neither be created nor destroyed.

The implication of that is; the mass of reactants in a given chemical reaction must also be equal to the mass of the products.

For this given reaction, the mass of reactants is equal to the mass of the products since mass is neither created nor destroyed.

The carbon atom indicated by the asterisk is prochiral and achiral. so, option (b) and (c) is correct.

What is reaction ?

A chemical reaction is the transformation of one or more chemicals, known as reactants, into one or more new compounds, known as products. The change in concentration of any of the reactants or products per unit of time can be used to determine the rate or speed of a reaction. It is determined by the equation rate=time + concentration.

Exercise is physical activity that is organized, prescribed, and repeated with the goal of conditioning any area of the body. Exercise is crucial for physical rehabilitation as well as for maintaining fitness and enhancing health that helps our body in metabolic reactions.

Therefore, carbon atom indicated by the asterisk is prochiral and achiral. so, option (b) and (c) is correct.

To know more about reactions check the below link:

https://brainly.com/question/30074859

#SPJ1

Answer:

larger dendritic fields

Explanation:

Answer:

The main difference between these two terminologies is that the Smooth Endoplasmic Reticulum is known for stocking the lipids and proteins. It is not bounded by ribosomes. Whereas, the Rough Endoplasmic Reticulum is bounded by the ribosomes and also stores proteins. Learn the difference between smooth endoplasmic reticulum and rough endoplasmic reticulum.

Explanation:

Answer:

having a sticky surface

Explanation:

took the test

The stigma becomes moist and sticky when mature, allowing pollen to be captured, where the pistil's elongation at the apex gives the pollen a larger surface area to land on.

The stigma is defined as the sticky knob at the top of the pistil that is attached to a long, tube like structure called the style. The style leads to the ovary which contains the female egg cells called ovules where as the male parts are called stamens and usually surround the pistil.

The stigma is described as a specially adapted part of the pistil, modified to receive pollen, which may be winged and branched or elongated, as in wind-pollinated flowers of grasses, or It can be dense and has a sticky surface.

Thus, the stigma becomes moist and sticky when mature, allowing pollen to be captured, where the pistil's elongation at the apex gives the pollen a larger surface area to land on.

Learn more about Pollination, here:

https://brainly.com/question/6847006

#SPJ6

Answer:

Their genetic code

Explanation:

Every cell is made with a genetic code that tells them what their jobs are in the cell, it is from when they are first formed, basically

One way that stress has had a positive effect on my performance is through a concept known as "eustress," which refers to the beneficial aspects of stress.

Eustress has helped me become more focused, motivated, and productive in challenging situations. For instance, when facing tight deadlines or complex tasks, the stress experienced pushes me to prioritize my work, manage my time effectively, and concentrate on the task at hand, this positive form of stress has also enhanced my ability to do adaptation and learn new skills. When faced with unfamiliar situations, the stress serves as a signal that I need to grow and improve, leading me to seek out new resources and strategies to tackle the problem. Eustress encourages me to push past my comfort zone, ultimately resulting in personal growth and increased confidence in my abilities.

Furthermore, eustress can boost my creativity and problem-solving skills. The pressure to perform well under stress often leads to innovative solutions and unique perspectives on challenging issues. In conclusion, while excessive stress can be detrimental to performance, the right amount of eustress can serve as a powerful catalyst for improved focus, motivation, adaptability, and creativity, leading to better overall performance. One way that stress has had a positive effect on my performance is through a concept known as "eustress," which refers to the beneficial aspects of stress.

Learn more about adaptation at :

https://brainly.com/question/29767717

#SPJ11

Cellular respiration requires oxygen and releases carbon dioxide.

Answer and Explanation:

Stem cell transplant in the brain is not clinically approved yet. The only scientific and ethical via to generate a treatment is through an approved clinical essay.  Clinical investigation in the stem cell transplant involves an important and long study of the risks and benefits relationship before the treatment begins. However, the transplant is an invasive method directed to the brain that might result in very serious neurological damage, which can not be predicted by the preclinical analysis. Some of the patients treated have shown positive effects, but some others have poorly responded to the treatment. Also, some long-term studies suggest that these transplants might still result in the evolution of the disease together with secondary effects. Also, the transplant might originate cancerous cells, tumors, inadequate cell migration, immune rejection, bleeding during  surgery, and post-surgical infection. Using stem cells for clinical use requires first an ensure that the treatment will result in a long-term improvement of motor function along with a  relief of drug resistance symptoms in animals.

But the bigger problem relies on the origin of these cells. They must be obtained from embryo destruction before it reaches the uterus. This is very controversial and many people are against it due to the fact that it might involve abortion. The murder of a future person.  

Answer:

it would be the procedure for trnsplatting the stem cell

Explanation:giving that it is a riskynoperation if not done with extreme cautions it could cause more damage than good

Answer:

C. All motion is relative to the frame of reference chosen for measurement

Explanation:

The organ system that exchanges materials between the internal and external environments is the respiratory, digestive and excretory system. These systems work together to maintain the internal environment and to get rid of waste products from the body.

Respiratory system - is responsible for taking in oxygen and eliminating carbon dioxide. This process involves the exchange of gases between the lungs and the blood. Digestive system - is responsible for breaking down food and absorbing nutrients.

This process involves the exchange of nutrients and waste products between the digestive tract and the blood.Excretory system - is responsible for getting rid of waste products from the body. This process involves the exchange of waste products between the blood and the kidneys, which then filter the waste products out of the body.

Know more about excretory system:

https://brainly.com/question/29502214

#SPJ11

Answer:

new moon and fullmoon

Explanation:

Answer:

full

Explanation:

answer. A

Explanation:

when a substance or organism is structurally altered it has been damage which usually results in its death.

An organism is a living entity that can carry out various life processes, such as reproduction, metabolism, and response to stimuli. Organisms can range in complexity from single-celled microorganisms to multicellular plants and animals.

All organisms are composed of cells, which are the basic unit of life. Cells carry out the fundamental processes necessary for life, including energy production, DNA replication, and protein synthesis. Organisms can also interact with their environment, responding to changes in their surroundings and adapting to new conditions over time.

To learn more about Organism visit here:

brainly.com/question/12825206

#SPJ4

Answer:

All living things breathe, eat, grow, move, reproduce and have senses. Non-living things do not eat, grow, breathe, move and reproduce.Explanation:

that the condensation of chromatin into short threadlike structures that can be seen under a microscope occurs in the Prophase stage of mitosis. Furthermore, are the  would include more information about mitosis and how the Prophase stage leads to the separation

chromosomes during cell division. Lastly, an can be provided to further clarify the concept of chromatin condensation in the Prophase stage of mitosis. Mitosis is the process by which a single cell divides into two daughter cells. The mitotic cell cycle includes four distinct phases: Prophase, Metaphase, Anaphase, and Telophase. The Prophase stage is the first stage of mitosis, and it is during this phase that chromatin fibers in the nucleus condense into short threadlike structures called chromosomes.

Each chromosome contains two identical copies of DNA molecules that are held together at a region called the centromere. During Prophase, the nucleolus disappears, and the nuclear envelope breaks down, allowing the chromosomes to move freely in the cytoplasm. At the same time, spindle fibers form and attach to the chromosomes at the kinetochores, which are protein structures on the centromeres. The spindle fibers help to move the chromosomes towards the center of the cell during Metaphase, which is the next stage of mitosis.In summary, the condensation of chromatin fibers into short threadlike structures occurs during Prophase in the mitotic cell cycle.

To know more about chromatin  Visit;

https://brainly.com/question/11073325

#SPJ11

Answer:

We sense temperature in our environment through specialised nerve cells that project into the outer layers of the skin. These nerve cells are activated by high temperatures and capsaicin, the substance that makes chilli peppers hot. In response to a stimulus like heat or capsaicin, proteins on the surface of nerve cells called ion channels open up a channel that lets charged ions flow into the cell, setting off a nerve impulse. The impulse travels along sensory neurones to the spinal cord and then up to the brain, where it is interpreted as heat.

The answer is as follows :a) The mutation in the operator site that prevents the lac repressor from binding to it would have a cis-effect on the expression of the structural genes in the operon.

b) The mutation in the laci gene that prevents the lac repressor from binding to DNA would have a cis-effect on the expression of the structural genes in the operon.

c) The mutation in the lac promoter that prevents RNA polymerase from binding to it would have a cis-effect on the expression of the structural genes in the operon.
d) The mutation that deletes the Shine-Dalgarno sequence of the trp operon leader peptide would have a trans-effect on the expression of the structural genes in the operon.

To know more about genes visit:

https://brainly.com/question/8832859

#SPJ11

Answer:

Ok, there are multiple ways of model this, one of the ways can be:

Knowing that a hornworm can strip a tomato plant of its foliage in about two days, we can count the number of hornworms (x, the input) and find the number of plants (y, the output) that they can eat in a day.

So, if a hornworm can eat a plant in two days, then in one day the worm can eat half a plant.

Then:

y = (0.5plants/worm)*x

This says:

The number of plants eaten in one day (y) is equal to half of the number of hornworms

OF course, there are a lot of other ways to model this, for example we can use the time as a variable x, and the number of plants as y.

Knowing that a worm eats a plant in two days:

y = (0.5 plants/day)*x

Now x is the number of days, and y is the number of plants that can be eaten by a single worm

Answer:

The guiding philosophy of Hutton and geologists who came after him is: The present is the key to the past. "To correlate rock layers that are separated by a large distance look for sedimentary rock formations that are extensive and recognizable, index fossils, and key beds."

Explanation:

Something that has texture, hardens, and is filled with composition. Please mark my answer as brainliest if it helped you, thanks!

When the number of organisms increases in an ecosystem the competition for the resources present in the ecosystem increases. An ecosystem is a complex network of living and nonliving components that interact with each other to sustain life.

The living component of the ecosystem comprises of biotic components, which include all the organisms that inhabit the ecosystem.When the number of organisms increases in an ecosystem, it puts a strain on the resources present in the ecosystem. The availability of resources such as food, water, and space becomes scarce as more organisms compete for these resources.

This increased competition can have a significant impact on the overall health of the ecosystem, as organisms begin to struggle to survive.As a result of the increased competition, some organisms may be forced to migrate or die. In addition, the population of certain species may decline as they struggle to compete with other species for resources. This can lead to a decrease in biodiversity, which can have a cascading effect on the entire ecosystem.

learn more about ecosystem

https://brainly.com/question/842527

#SPJ11

The rain shadow is the dry slope of a mountain that is protected from predominant winds and rains. Usually, it is characterized by desertic conditions. The statement is false.

A rain shadow is a meteorological event that occurs when dense clouds, driven by predominant winds, meet one side of a mountain. Rain occurs on this side, while the other side of the mountains remains dry.

The rain shadow is the dry slope of the mountain, which is protected from predominant winds in mountain chains. When referring to predominant winds, we mean the direction of winds that occurs more often in the affected region.

Usually, rain shadows are associated with desertic regions, because only dry winds reach these areas. Poor vegetation inhabits there.

According to this framework, the statmente is FALSE.

A rain shadow is NOT where a single rainy cloud blots out the sun in an otherwise sunny day, making a rainbow.

You can learn more about rain shadows at

https://brainly.com/question/1106258

https://brainly.com/question/22909242

#SPJ1

Answer:

wow high school work

Explanation:

Translation: process of protein formation is called translation .

In the process of translation, a cell reads information from a molecule called a messenger RNA  and uses this information to build a protein.  Translation involves “decoding” a messenger RNA  and using its information to build a polypeptide, or chain of amino acids .

Chromosomes structure and function in the production on sex cells allows for variation in the sense that there will be recombination as well as assortment in meiosis occur, whereby  1 gamete from each parentcome together.

It sahould be noted that whem there is fertilisation, 1 gamete from each parent  will come together so they can become zygote.

Therefore, due to the recombination  as well as the independent assortment in meiosis, each gamete posses set of DNA and this will result to unique combination of genes and as a result of this zygote is formed.

Learn more about chromosomes at:

https://brainly.com/question/11912112

#SPJ1

One biochemical evidence that supports the theory of evolution that says that we all come from a common ancestor is the fact that all organisms use the same genetic code for the translation of proteins, for example, the codon AUG codes for the amino acid methionine in all organisms.

This means D would be the right answer.

Answer:lakes and swamps

Explanation:any thing that is not man made

Examples of natural discharge areas for underground water are lakes and swamps. The correct option is b.

Groundwater is defined as any water that seeps underground. A riverbed where the water does not soak the soil sufficiently to appear above the surface of the riverbed is an example of this.

More rain would cause enough water to flow down the river to make it appear as a river or stream. The hydrosphere is the total amount of water that exists on the planet's surface. This includes water in any area on Earth, as well as the atmosphere and surface, the subterranean, and even the air.

Lakes and ponds are open-water ecosystems that exist beyond the boundaries of swamp or emergent vegetation.

Therefore, the correct option is b. Lakes and swamps.

To learn more about underground water, refer to the link:

https://brainly.com/question/6284267

#SPJ2