which portion of the central nervous system coordinates motor activities and aids in maintaining balance?

Answer:

Seizures is most triggered by dehydration

The type of cartilage characterized by the presence of chondrocytes sitting in lacunae is a. Hyaline cartilage.

Hyaline cartilage is the most common type of cartilage found in the body. It consists of a firm yet flexible matrix composed of collagen fibers, proteoglycans, and water. Chondrocytes, the cells responsible for maintaining the cartilage, reside in small spaces called lacunae within the matrix. These lacunae provide a protected environment for the chondrocytes and allow them to carry out their essential functions, such as producing and maintaining the extracellular matrix. Hyaline cartilage is found in various locations, including the nose, trachea, ends of long bones, and the embryonic skeleton.

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Fertilization between haploid gametes forms a diploid zygote and sporophyte, which undergoes mitosis and meiosis to produce haploid spores.

A zygote is formed from gametes through a process called fertilization. Gametes are haploid cells, meaning they contain only one set of chromosomes, which is half the number of chromosomes found in a diploid cell. In humans, gametes are sperm cells from the male and egg cells from the female. During fertilization, a sperm cell penetrates the egg cell, resulting in the fusion of their nuclei and the formation of a diploid zygote with a complete set of chromosomes (46 in humans).

The process of fertilization ensures that the genetic material from both parents is combined to create a unique individual with a diverse set of traits. The zygote then undergoes mitotic divisions to develop into an embryo, which eventually becomes a fully formed organism.

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Photosynthesis, Decomposition, Respiration and Combustion. Carbon cycles from the atmosphere into plants and living things. For example, carbon is a pollutant in the atmosphere as carbon dioxide.

Answer: Some plants can produce seeds without fertilization via apomixis where the ovule or ovary gives rise to new seeds. Advantages of asexual reproduction include an increased rate of maturity and a sturdier adult plant.

Answer:

B) On the same place on the same chromosome.

Explanation:

Both alleles are located on the same chromosome and present at the same place because genes come in pair. Each pair of gene is located at a specific place on a chromosome. If the two alleles present at a specific location are similar to each other, it is called homo-zygous while on the other hand, if both alleles are different from one another, they are considered as hetero-zygous.

Answer:

He will use a radioactive element with a long half life of greater than 1 billion years

Explanation:

Rocks are an aggregation of solid mass which is usually rich in minerals. The age of rocks is established using radiometric dating method.

According to Oxford Dictionary, radiometric dating is "a method of dating geological specimens by determining the relative proportions of particular radioactive isotopes present in a sample."

The age of rocks can only be ascertained using isotopes that have very long half lives because many of these rocks are very old (aged billions of years) hence their age can only be determined using elements that has a half life greater than 1 billion years.

Answer:

egg

Explanation:

specifically, ostrich eggs

Answer:

the largest cell is the egg of ostrich

Explanation:

i hope this will help you :)

Answer:

A is the correct answer.

The response that is NOT one of the three main parts of the muscular system is "Bones." The three main parts of the muscular system are muscles, ligaments, and tendons.

The muscular system is responsible for the movement of the body and includes various components. Muscles are the primary components of the muscular system. They are composed of muscle tissue and are responsible for generating force and facilitating movement.

Ligaments are fibrous connective tissues that connect bones to other bones. They provide stability to joints and help to prevent excessive movement or dislocation.

Tendons, on the other hand, are tough connective tissues that connect muscles to bones. They transmit the force generated by muscles to the bones, allowing for coordinated movement.

Bones, although crucial for the skeletal system, are not considered one of the main parts of the muscular system. While bones provide support and serve as attachment points for muscles and tendons, they are distinct from the muscular system itself.

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The answer is B. High

In the given case, the risk of epidemic flu would be high.

It refers to the occurrence of a health-related incident or illness, which is unusually unexpected or large. Epidemics are generally a result of a disease of parasitic or infectious origin like a flu. The term is generally used to demonstrate a pronounced elevation in the occurrence of a disease and is not confined to sudden outbreaks.

The risk of an epidemic like a flu primarily elevates in the countries that are backward and are suffering from the issues like few medical supplies and vaccines. It even gets worse when the country is facing natural calamities like a hurricane.

Thus, the correct answer is option B, that is, high.

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Answer:

brain stem.

Explanation:

The area of the brain responsible for respiration, heart rate, and blood pressure is the brain stem.

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When basilar membrane moves, stereocilia on the spiral organ hair cells distort because they are anchored by tectorial membrane.

What are the spiral organ?

The spiral organ is also called organ of Corti which is defined as receptor organ for hearing, located in the cochlea of ear.

The spiral organ is made up of hair cells which are sensory epithelial cells that act as sensory receptor of inner ear.

During the transport of sound from the ear drum, the movement of basilar membrane lead to change in the spiral hair cells because they are anchored by the tectorial membrane.

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here is the answer

Explanation:

Once an acquired mutation is transmitted along throughout generations, it becomes hereditary.

Organism’s slide would most likely be categorized as "unicellular with cilia for movement" is B. paramecium.

Paramecium are eukaryotes. In comparison to prokaryotic organisms, consisting of micro organism and archaea, eukaryotes have well-prepared cells. Paramecium are prey for Didinium which might be unicellular ciliates. Paramecium aids withinside the carbon cycle with the aid of using feeding on decaying vegetation and micro organism. They also can be used as a version organism in research. Paramecia collect poison for numerous days if uncovered to a sublethal dose till they end up lethargic, and having absorbed a deadly dose they in the end expire. The poisonous cloth isn't particulate, and it's miles with ease separated from the micro organism with the aid of using centrifugation.

Thus, the correct option is B.

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When warmed by the sun, water on the surface of oceans and freshwater bodies evaporates, forming a vapor. Water vapor rises into the atmosphere, where it condenses, forming clouds. It then falls back to the ground as precipitation. Moisture can also enter the atmosphere directly from ice or snow.

The original source of energy for the water cycle is sunlight. It falls on the earth's surface and causes the water to evaporate.

As the sunlight falls on the surface of the earth's surface, the water in the oceans or water bodies evaporates and the glaciers sublimes which converts directly from solid to gas or vapor form.

The vapor rises up in the atmosphere and forms the clouds this process is known as condensation. These water vapors falls back to earth's surface by the process of precipitation or raining.

This is known as water cycle. Therefore, the answer for the given question is sun energy or sunlight.

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Answer: 31, Igneous rocks are formed from lava or magma. Magma is molten rock that is underground and lava is molten rock that erupts out on the surface. The two main types of igneous rocks are plutonic rocks and volcanic rocks. Plutonic rocks are formed when magma cools and solidifies underground

32, Sedimentary rocks can be organized into two categories. The first is detrital rock, which comes from the erosion and accumulation of rock fragments, sediment, or other materials—categorized in total as detritus, or debris. The other is chemical rock, produced from the dissolution and precipitation of minerals

33, Rocks are formed on Earth as igneous, sedimentary, or metamorphic rocks. metamorphic rocks form from heat and pressure changing the original or parent rock into a completely new rock.

The statement that "Translation in prokaryotes can occur without transcription due to the lack of nucleus" is false.

Translation and transcription are two important processes involved in gene expression. In prokaryotes, transcription and translation can occur simultaneously due to the absence of a nucleus.

In prokaryotes, the DNA is not enclosed in a nucleus, and the RNA polymerase can attach to the DNA template and begin transcription without any separation of the transcription and translation processes.

The mRNA produced during transcription can immediately bind to the ribosome and start translation without any processing or modification, which allows the simultaneous transcription and translation.

In eukaryotes, on the other hand, transcription and translation are separated by the nuclear envelope, and the mRNA transcript must be processed and transported to the cytoplasm before it can undergo translation.

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Given the state of knowledge at the time of the Avery, MacLeod, and McCarty experiment, it was difficult for some scientists to accept that DNA is the carrier of genetic information because, at that time, it was widely believed that proteins were the genetic material.

The experiment performed by Avery, MacLeod, and McCarty demonstrated that DNA was capable of transforming bacteria. The reason that scientists had difficulty accepting that DNA was the carrier of genetic information was because DNA was believed to be a relatively simple molecule that would not be capable of carrying the necessary information to produce the wide variety of traits observed in living organisms.

In addition, proteins were known to be capable of assuming a wide variety of three-dimensional shapes, which seemed to make them much more versatile than the relatively rigid structure of DNA. However, the Avery, MacLeod, and McCarty experiment demonstrated that DNA was capable of transmitting genetic information and provided evidence that DNA was indeed the carrier of genetic information. This groundbreaking experiment helped to revolutionize our understanding of genetics and paved the way for further research into the structure and function of DNA.

Hence, given the state of knowledge at the time of the Avery, MacLeod, and McCarty experiment, it was difficult for some scientists to accept that DNA is the carrier of genetic information because at that time, it was widely believed that proteins were the genetic material.

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Answer:

Explanation:

2. High levels of cholesterol can “clog” arteries, effectively shrinking them. What

would you expect the impact of this to be on a person’s blood pressure levels and

overall health (ignoring any issues with plaque breaking off and causing other

issues)?

- a buildup of cholesterol, fat, and calcium, called plaque, in the inner walls of the

arteries can slow down blood flow, sometimes blocking it altogether. Clogged or

blocked arteries can lead to hypertension, strokes, or even death, so it is vital to

understand the signs and symptoms of blocked arteries

Answer:

Although 3 and 4 are great answers, I honestly think the answer is C. Because you can simply define the cell wall as a semi-rigid thick protective structure that surrounds the cell membrane of some types of cells for protection and defining the shape of the cell. The cell membrane alone cannot provide the required rigidity or strength. All living organisms are composed of cells. Cell walls contain only little amount of protein in the cell wall.

Explanation:

Not all cells have a cell wall; the cell wall is a rigid covering that protects the cell, provides structural support, and gives shape to the cell. Cell walls are found in both prokaryotes and eukaryotes, although not all cells have cell walls. Animal cells does not have a cell wall; Cell walls provide support and give shape to plants. Plant cells have chloroplasts, but animal cells do not. Chloroplasts enable plants to perform photosynthesis to make food.

Answer:

300 N

Explanation:

\( m = 30 \: kg \\ g = 10 \: m {s}^{ - 2} \\ w =? \\ \because \: w = mg \\ \therefore \: w = 30 \times 10 \\ \therefore \: w =300 \:N \:(Newton) \)

The weight of the object having a mass of 30 Kg is 300 N

The weight and mass of an object are related according to the following equation:

W is the weight

m is the mass

g is the acceleration due to gravity.

Mass (m) = 30 Kg

Acceleration due to gravity (g) = 10 m/s²

W = mg

W = 30 × 10

Therefore, the weight of the object is 300 N

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25% of their daughters are expected to have normal color vision, while the other 75% are expected to be carriers of the color blindness gene.

Red-green color blindness is a genetic condition caused by a mutation in a gene located on the X chromosome. The gene responsible for normal color vision is dominant, while the gene responsible for color blindness is recessive.

If two people with normal color vision have two sons, one color-blind and one with normal color vision, it is likely that the parents are carriers of the color blindness gene. This means that they each have one normal X chromosome and one X chromosome carrying the color blindness gene.

When the parents have children, they each pass on one X chromosome to their offspring. The probability of passing on the normal X chromosome is 50%, while the probability of passing on the X chromosome carrying the color blindness gene is also 50%.

For their daughters, the probability of having normal color vision is:

(normal X from mother) * (normal X from father) = 0.5 * 0.5 = 0.25.

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Explanation:

DNA is a self replicating material that is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information

RNA is a nucleic acid present in all living cells. Its role is to act as a messenger carrying instructions from DNA for controlling the synthesis of proteins

Nucleic acid is a complex organic substance present in loving cells, especially DNA and RNA, whose molecules consist of many nucleotides liked in a long chain

In power plants that burn coal, the process involves two distinct phenomena: the burning of coal and the boiling of water. The correct answer is C.

The burning of coal is a chemical change. It involves the combustion of coal, which is a reaction between the carbon in coal and oxygen from the air. This chemical reaction releases heat energy as well as byproducts such as carbon dioxide, water vapor, and various pollutants.

On the other hand, the boiling of water is a physical change. It occurs when heat is applied to water, causing it to change from a liquid state to a gaseous state (water vapor) through the process of vaporization. Boiling water does not involve any chemical reactions or changes in the composition of the water molecules.

Therefore, the correct answer is C. Burning coal is a chemical change, and boiling water is a physical change. It is important to understand the distinction between chemical and physical changes when studying the processes involved in power generation from coal.

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Answer:

a

Explanation:

Chlorophyll a absorbs wavelengths from either end of the visible spectrum (blue and red), but not green. Because green is reflected or transmitted, chlorophyll appears green. Carotenoids absorb in the short-wavelength blue region, and reflect the longer yellow, red, and orange wavelengths.

As shown in detail in the absorption spectra, chlorophyll absorbs light in the red (long wavelength) and the blue (short wavelength) regions of the visible light spectrum. Green light is not absorbed but reflected, making the plant appear green. Chlorophyll is found in the chloroplasts of plants.

Deanna is more likely to develop a taste aversion to the novel food, vegetable samosas, as a result of the illness she experienced after eating the meal.

This is because of the biological mechanism known as the Garcia effect, which states that when an organism associates a novel taste or smell with an illness or negative experience, they are more likely to develop an aversion to that particular food or odor. In other words, the body learns to associate the taste of the novel food with the illness, causing Deanna to feel sick even at the thought of eating vegetable samosas in the future. This aversion is a form of a classical conditioning response and is a survival mechanism that helps organisms avoid potentially harmful or toxic foods in the future. It is important to note that the familiar food, roast beef, may not be affected by the taste aversion as it is already associated with positive experiences and memories for Deanna.

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