Explain why enzymes are essential or important to maintaining
homeostasis in living things.

Answer:

grey or black it combines too

Question 1: The ploidy of a cell stays the same from the beginning to the end of meiosis - False

Explanation: The ploidy of a cell is reduced by half from diploid to haploid during meiosis.

In the first meiotic division, homologous chromosomes pair up and separate, reducing the chromosome number by half. In the second meiotic division, sister chromatids separate, leading to the formation of four haploid daughter cells.

Question 2: Cancer could be described as the mutations that lead to uncontrolled mitosis - True

Explanation: Cancer arises due to mutations in genes that regulate cell division. These mutations result in the uncontrolled growth and division of cells, leading to the formation of a tumor. The cells in a tumor continue to divide without any regulation, which leads to the spread of cancer to other parts of the body.

Question 3: During prophase, chromatin condenses into chromosomes, the nuclear envelope breaks down, and chromosomes attach to spindle fibers by their centromeres - True

Explanation: Prophase is the first stage of mitosis, during which chromatin condenses into chromosomes, the nuclear envelope breaks down, and chromosomes attach to spindle fibers by their centromeres. The spindle fibers help to move the chromosomes to opposite poles of the cell during cell division.

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Answer: The exocrine glands hormones could be ions, enzymes mucins, water or chemical compounds that aid in the normal functioning in the human body. The glands that are exocrine are multicellular or unicellular, based on the degree of complexity of the glands as well as their function. Some examples of these are the liver and the Salivary glands.  Endocrine glands are referred to as hormones. are released by cells in an interstitial liquid. Then, they disperse into the bloodstream, without having to pass through the canal system. The endocrine glands are responsible for monitoring the long-term activity of the body and affect the general metabolism and development in the human body. Some examples of these are the Pituitary Gland and the Adrenal Gland.

Hope this helps!

This is true that the thick skin of the third instar is shed as the maggot prepares to become an adult fly.

As the maggot grows and develops, it goes through several stages or instars. The third instar is the stage where the maggot's skin becomes thick and tough to protect the developing pupa inside. When the maggot is ready to transform into an adult fly, it sheds this skin in a process called pupation.

The third instar larva, often known as a maggot, does not shed its thick skin as it gets ready to become an adult fly. The maggot goes through a phase known as pupation instead. The puparium, a protective container used during pupation, is where the maggot changes into a pupa. Instead of being shed inside the puparium, the larval skin undergoes a significant remodelling as the maggot develops into an adult fly. After finishing the pupal stage, the adult fly leaves the puparium.

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In the context of genetic fixation, an allele reaches fixation when its frequency becomes 100% in a population, meaning that all individuals carry that specific allele.

Genetic fixation can occur through genetic drift, natural selection, or a combination of both factors.

If one allele goes to genetic fixation, it implies that only one allele remains at the end, and the genetic diversity at that specific locus is reduced.

This can have various implications for the population, such as decreased adaptability to changing environmental conditions.

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Answer: Well for one, Differentiate is when a cell matures and is used in a specific function. Meristem is a cell which never differeates and constantly divides so it is a mitotic cell. Elongation is the plant growing length wise therefore the meristem elongates the plant. Vascular cambium is the cambium which starts out in vascular bundles of the plant and then grows to form a ring inside the stem of plants that live for more than year- it causes and increase in thickness of the stem and branches.

hope this helped luv :)

Answer:

Give the other person brainliest they deserve it

Explanation:

1. DNA replication produces two identical DNA molecules, called SISTER CHROMATID(S), which separate during mitosis.

2. After chromosomes condense, the CENTROMERE(S) is the region where the identical DNA molecules are most tightly attached to each other.

3. During mitosis, microtubules attach to chromosomes at the KINETOCHORE(S)

4. In dividing cells, most of the cell's growth occurs during INTERPHASE

5. The MITOTIC SPINDLE(S) is a cell structure consisting of microtubules, which forms during early mitosis and plays a role in cell division.

6. During interphase, most of the nucleus is filled with a complex of DNA and protein in a dispersed form called CHROMATIN

7. In most eukaryotes, division of the nucleus is followed by CYTOKINESIS, when the rest of the cell divides.

8. The CENTROSOME(S) are the organizing centers for microtubules involved in separating chromosomes during mitosis.

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Full Question:As in most areas of biology, the study of mitosis and the cell cycle involves a lot of new terminology. Knowing what the different terms mean is essential to understanding and describing the processes occurring in the cell.

An increase in potential energy of 5,880 J will result from a 60.0-kg man climbing a ladder that is 10.0 meters high.

Potential energy of the man has increased

The additional potential energy of a man is calculated using the formula below:

P.E = mgh in which

The unit of mass for the man is m.

The man has grown to h in height.

In g, gravitational acceleration is expressed.

P.E = 60 x 9.8 x 10

P.E = 5,880 J

A 60.0-kg man climbing a ladder that is 10.0 meters high will therefore require an additional 5,880 J of potential energy.

Potential energy is a type of stored energy that depends on the interactions of various system elements. The potential energy of a spring rises when it is compressed or stretched.

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Complete Question -

ALWAYS use significant figure rules. Remember that these rules apply to all numbers that are measurements.

In working this problem, assume the value of "g" to be 9.8 m/s2 with two (2) significant digits unless otherwise stated.

Calculate the increase in potential energy of a 60.0-kg man who climbs a ladder 10.0 meters high.

5880

600

58,800

The smallest number of nucleotides that must be added or subtracted to change the triplet grouping of the genetic message is one.

In the genetic code, nucleotides are arranged in groups of three called triplets. Each triplet corresponds to a specific amino acid or serves as a start or stop signal in protein synthesis.

To change the triplet grouping of the genetic message, only one nucleotide needs to be added or subtracted. This alteration will shift the reading frame and potentially change the entire sequence of amino acids encoded by the genetic message.

By adding or subtracting a single nucleotide, the entire sequence downstream will be affected, as the genetic code is read in triplets. This type of mutation is known as a frameshift mutation and can have significant consequences on the resulting protein's structure and function.

Frameshift mutations can lead to a complete alteration of the protein sequence beyond the point of mutation, potentially resulting in nonfunctional or abnormal proteins.

Therefore, even a small change in the nucleotide sequence can have profound effects on the genetic message and subsequent protein synthesis.

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Key Points

Digested food is able to pass into the blood vessels in the wall of the small intestine through the process of diffusion.

The inner wall, or mucosa, of the small intestine is covered in wrinkles or folds called plicae circulares that project microscopic finger-like pieces of tissue called villi, which in turn have finger-like projections known as microvilli.

The function of the plicae circulares, the villi, and the microvilli is to increase the amount of surface area available for the absorption of nutrients.

Each villus transports nutrients to a network of capillaries and fine lymphatic vessels called lacteals close to its surface.

Key Terms

villi: Tiny, finger-like projections that protrude from the epithelial lining of the intestinal wall.

plicae circulares: These circular folds (known as the valves of Kerckring or the valvulae conniventes) are large, valvular flaps that project into the lumen of the bowel.

diffusion: The act of diffusing or dispersing something, or the property of being diffused or dispersed; dispersion.The Small Intestine

The small intestine is the part of the gastrointestinal tract between the stomach and the large intestine where much of the digestion of food takes place. The primary function of the small intestine is the absorption of nutrients and minerals found in food.Digested nutrients pass into the blood vessels in the wall of the intestine through a process of diffusion. The inner wall, or mucosa, of the small intestine is lined with simple columnar epithelial tissue.

Structurally, the mucosa is covered in wrinkles or folds called plicae circulares—these are permanent features in the wall of the organ. They are distinct from the rugae, which are non-permanent features that allow for distention and contraction.

From the plicae circulares project microscopic finger-like pieces of tissue called villi (Latin for shaggy hair). The individual epithelial cells also have finger-like projections known as microvilli. The function of the plicae circulares, the villi, and the microvilli is to increase the amount of surface area available for the absorption of nutrients.

Each villus has a network of capillaries and fine lymphatic vessels called lacteals close to its surface. The epithelial cells of the villi transport nutrients from the lumen of the intestine into these capillaries ( amino acids and carbohydrates) and lacteals (lipids).

The absorbed substances are transported via the blood vessels to different organs of the body where they are used to build complex substances, such as the proteins required by our body. The food that remains undigested and unabsorbed passes into the large intestine.

description most closely resembles how stereocilia perform. In hair cells, bending causes depolarization or hyperpolarization.

Depolarization is the process of bringing a cell's barrier potential to a higher positive value. Repolarization is the process through which the membrane potential shifts from a high to a net negative. The inner membrane has become less negative after depolarization. When voltage-gated sodium channels open, sodium ions ions rush into a neuron, causing depolarization. The potassium ion channels open and the na+ channels shut to cause repolarization. Depolarization is a positive change from the resting potential achieved by increased permeability to an ion with a Nernst potential above the RBP.

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Answer: Mercury and Venus are the only planets without moons.

Explanation: The outer Solar System includes Jupiter, Saturn, Uranus, Neptune and Pluto and the rest of the moons.

Answer:

hydrophilic/ hydrophobic

Explanation:

Hydrophobic means to be attracted to water. Hydrophobic means to be against water. In a phospholipid bilayer, the heads point out to reach the water, but the tails stay in to stay away from the water.

Answer:

radio maybe?? could also be cellphone lol

Explanation:

Hydroelectric, tidal and wind sources are similar in the sense that are all renewable sources of electricity generation.

Electricity is generated in many ways. Some of the ways are renewable while some of the ways are non renewable. The renewable means of generation can be reused while the non renewable can not be reused.

Now,  hydroelectric, tidal and wind sources are similar in the sense that are all renewable sources of electricity generation.

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A stratified squamous epithelium composes the epidermis.

The outermost of the three layers that make up the skin is the epidermis; the interior layers are the dermis and hypodermis. Plants have epidermis, which is a single layer of cells that covers their leaves, flowers, roots, and stems. Squamous epithelium is stratified and makes up the epidermis. A single base layer containing stem cells, two to three layers of proliferating basaloid cells in the suprabasal region, and bigger keratinized cells toward the surface make up stratified squamous epithelium. The esophageal squamous epithelium lacks a stratum corneum because it is non keratinizing.

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The most likely to happen to the fragile new species that are transported to a new ecosystem with very few different species is they cannot compete with native species and dies off.

Native species is а species thаt originаted аnd developed in its surrounding hаbitаt аnd hаs аdаpted to living in thаt pаrticulаr environment. When a species is transported to a new ecosystem, it is called non-native species. Non-nаtive species is а species thаt originаted somewhere other thаn its current locаtion аnd hаs been introduced to the аreа where it now lives.

When new species are transported to the new ecosystem, but it is fragile and must live with very few different species, they cannot compete with native species and dies off.

Your question is incomplete, but most probably your full question was

A. It cannot compete with native species and dies off.

B. It successfully competes with the native species and becomes part of the food web.

C. It successfully competes with native species and becomes a native species itself.

D. It is more successful than the native species and becomes an invasive species.

Thus, the correct answer is A.

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Answer:

The water Cycle

Explanation:

The water cycle or hydrologic is a continuous cycle where water evaporates, travels into the air and becomes part of a cloud, falls down to earth as precipitation, and then evaporates again. This repeats again and again in a never-ending cycle. Water keeps moving and changing from a solid to a liquid to a gas, over and over again.

Precipitation creates runoff that travels over the ground surface and helps to fill lakes and rivers. It also percolates or moves downward through openings in the soil to replenish aquifers under the ground. Some places receive more precipitation than others do. These areas are usually close to oceans or large bodies of water that allow more water to evaporate and form clouds. Other areas receive less precipitation. Often these areas are far from water or near mountains. As clouds move up and over mountains, the water vapor condenses to form precipitation and freezes. Snow falls on the peaks.

Answer:

a producer is a green plant

Explanation:

The relationship between climate change and the regularity of droughts in South Africa is complex but generally understood to be significant. Climate change, driven primarily by human activities such as the burning of fossil fuels and deforestation, is altering global weather patterns and contributing to shifts in precipitation patterns and increased temperatures.

In the case of South Africa, climate change has been associated with a higher frequency and intensity of drought events in certain regions. Here are some key points regarding their relationship:

Changing Rainfall Patterns: Climate change can lead to altered rainfall patterns, including changes in the timing, duration, and intensity of rainfall. South Africa's climate is characterized by regional variations, but overall, climate models suggest that the country will experience reduced average rainfall and increased variability. This can result in more frequent and severe droughts in some areas.

Increased Evaporation: Rising temperatures associated with climate change can increase evaporation rates, leading to drier soil conditions. This can exacerbate the impact of reduced rainfall and contribute to prolonged drought periods.

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The modifier that may be appended to the code for Paula's surgical procedure when donating her kidney to her brother is modifier "-QY."

Modifier "-QY" indicates that the service was performed by a physician who is a Qualified Nonphysician Healthcare Professional (QNHP). In this case, Paula is considered a QNHP since she is not a physician but is involved in the surgical procedure as a living kidney donor.

By appending modifier "-QY" to the surgical procedure code, it signifies that the service was performed by a QNHP, in this case, Paula, who is donating her kidney to her brother.

It's important to note that specific coding guidelines and requirements may vary, so it's always advisable to consult the official coding guidelines and payers' requirements for accurate and up-to-date information regarding modifier usage.

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The first stage /step in DNA replication is called Replication Fork Formation because DNA Helicase unzips the hydrogen bonds of the nitrogen base pair, a process where the DNA is “unzipped” into two single strands.

The specific role of the  DNA Helicase is an enzyme that acts during DNA replication fork formation in order to unzip both strands in the double helix during this process.

Therefore, with this data, we can see that the  DNA Helicase plays a fundamental role in DNA replication fork formation by unzipping both strands.

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Answer:

The correct answer is - option D. a pen.

Explanation:

A triple beam balance is an instrument which is a type of lever used to measure the mass of an unknown mass object very precisely. This instrument shows a very small error of ±0.05 grams.

It has a measurement tray on one side of the instrument and a fulcrum on the other side. On the measurement tray, an object with an unknown mass is placed and a set of sliding weights on the fulcrum. The sliding weights called riders that slide on beams to balance the object. The maximum weight a triple beam balance can measure is 610 grams ( 10+500+100).

Thus, the correct answer among these options is - option D.a  pen.

A diploid cell is one that has two copies of each chromosome and is denoted as option D.

This type of cell has two copies of each chromosome which is usually from the mother and father.

Haploid cells on the other hand have only one set of chromosome thereby making it the most appropriate choice.

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a. Simply Blue stain is a colloidal dye that binds to the amino groups of polypeptide chains present in the gel bands of proteins during the staining process.

b. The stain molecule produces a dark blue color that can be easily observed and distinguished when the protein gel is destained (treated with acetic acid) to remove the background dye. This gives discernible bands on a destained gel. 

During the cellulose acetate exercise, the enzyme lactate dehydrogenase (LDH) was electrophoresed in a medium consisting of a cellulose acetate film (membrane) impregnated with buffer. The buffer consisted of Tris and glycine. During electrophoresis, the positively charged LDH molecules were attracted to the negatively charged electrode or cathode. They then migrated towards the positively charged electrode or anode.

LDH migrates towards the anode due to the fact that it is negatively charged in the buffer medium used in the electrophoresis exercise. In the native polyacrylamide gel electrophoresis, similar principles apply where the negatively charged molecules will move towards the positive electrode (anode) during electrophoresis.

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True. The sphenoid bone is a skull bone that can be described as looking like a bat with wings extended. This bone is a central and complex structure located at the base of the skull, between the frontal, temporal, and occipital bones. It plays a crucial role in supporting the brain and connecting various other bones in the skull.

The sphenoid consists of a central body and multiple extensions, which are referred to as the "wings" of the sphenoid.

These wings can be further divided into two parts: the greater wings and the lesser wings. The greater wings extend laterally and contribute to the floor and sidewalls of the skull, while the lesser wings extend anteriorly and form part of the orbit of the eyes. In addition, the sphenoid also has various important structures and openings called foramina, which allow the passage of nerves and blood vessels.

In summary, the statement that a skull bone resembling a bat with wings extended is the sphenoid is true. The sphenoid is a vital component of the skull that supports the brain and connects different skull bones. Its unique shape, featuring greater and lesser wings, makes it easily identifiable and contributes to its resemblance to a bat with wings extended.

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The correct answer is A) Humans benefit from different living things, including animals, plants, and microorganisms.

No, it is not true that humans are the most important living things, followed by animals, plants, and microorganisms. All living things are essential in maintaining the balance of ecosystems and the planet's overall health. Humans are just one species among millions of others.

An ecosystem is made up of all living organisms and non-living components that interact with each other within a specific environment. The living organisms in an ecosystem include plants, animals, microorganisms, and humans. The non-living features include water, air, soil, sunlight, and minerals.

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Answer: D. Vestigial Structures

Explanation:

Answer:

The coaches purpose for performing this experiment is to see which beverage would help atheletes the best before a daily training session.

Explanation:

To support this response, you can see in the text it says, "A track and field coach is trying to decide what beverage is the best pre-training beverage for athletes to drink before a daily training session."