(Number 15)Which phase of mitosis during growth and development demonstrates the communication and exchange of genetic information by aligning chromosomes in the middle of the cell?

general term for the process that produce mountains.

Bioaccumulation is the process by which certain harmful substances, such as chemicals or toxins, build up in an organism's body over time. These substances are often persistent environmental pollutants, meaning they do not break down easily and can remain in the environment for long periods.

1. Sources of Contaminants:

Environmental Pollution:

Dietary Intake:

2. Absorption and Storage:

Lipophilicity:

Persistent Organic Pollutants (POPs):

3. Trophic Levels and Food Chains:

Bioaccumulation:

Biomagnification:

4. Health and Environmental Impacts:

Toxicity:

Ecosystem Disruption:

Example

Understanding bioaccumulation is crucial for managing environmental health and developing policies to limit the release of persistent pollutants into the environment.

Answer:

here the answer

stop looking at my tabs

Explanation:

The substances which would complete the equation that models the overall process of cellular respiration are:

A: glucose.

B: Oxygen.

C: Carbon dioxide.

D: water.

E: ATP.

Cellular respiration can be defined as a series of metabolic reactions that typically occur in cells so as to produce energy in the form of adenosine triphosphate (ATP).

During cellular respiration, high energy intermediates are created that can then be oxidized to make adenosine triphosphate (ATP). Therefore, the intermediary substances or products are produced at the glycolysis and citric acid cycle stage.

Basically, the whole process involved in cellular respiration can be represented or modelled by a single equation by using the following substances;

[tex]Glucose + Oxygen ---> Carbon \;dioxide + Water + ATP[/tex]

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Chronic stress.

Hope this helps!

Chronic Stress

Is your answer :D

Answer:

A.

Explanation:

We are given graph in the figure.

We have to find a quadratic graph

Quadratic function: It is that function in which  degree of polynomial is 2.

Quadratic function is given by

[tex]ax^2+bx+c[/tex]

Quadratic graph: it is defined as that graph which is like as parabola along y- axis , along x- axis, along negative x- axis and along negative y- axis.

In option  A: The given graph is parabola along y- axis.Therefore, it is quadratic graph.

Hence, option A is true.

In option B: the graph is not the graph of parabola.So,given graph is not quadratic graph.

Hence, option B is true.

In option C:It is graph of line .The equation of line [tex]y=mx+c[/tex]

It is not a quadratic equation .Hence, the graph is not quadratic graph.

Therefore, option C is false.

In option D: The given graph is not like as parabola along any axis.

Therefore, it is not a quadratic graph.

Hence, option D is true.

Answer:

Invasive species do not have natural predators and therefore usually overgrow, invading other species habitat and breaking the normal ecosystem process.

Explanation:

When a species its brought by human mistake to a new environment where they can successfully adapt and grow. This invasive species can usually reproduce and grow rapidly, using many resources and therefore affecting the native species.  Part of their success its because in many cases, they do not have natural predators or pests. A well known example its the introduction of the Lionfish to the Caribbean Sea.  

The invasive species are dangerous to the environment because they disrupt the organisation of the ecosystem.

The invasive species are those organisms that are are introduced into an ecosystem without a natural predators that helps to monitor it's growth.

They are dangerous to the ecosystem because of the following reasons:

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The outer membrane is technically the skin and covers the organelle.

The inner membrane folds over many times and creates layered structures called cristae.

:)

Mitochondria are known as the powerhouses of the cell. They are organelles that act like a digestive system which takes in nutrients, breaks them down, and creates energy-rich molecules for the cell.

Mitochondria Structure

Mitochondria are shaped perfectly to maximize their productivity. They are made of two membranes. The outer membrane covers the organelle and contains it like a skin. The inner membrane folds over many times and creates layered structures called cristae. The fluid contained in the mitochondria is called the matrix.

The folding of the inner membrane increases the surface area inside the organelle. Since many of the chemical reactions happen on the inner membrane, the increased surface area creates more space for reactions to occur.

The H-zone in a contracted sarcomere differ from that of a relaxed sarcomere because H-Zone is narrower in contracted sarcomere. In a striated muscle sarcomere is small unit of myofibril.  Between two Z line sarcomere is the repeated unit . Sarcomere is the very basic unit that makes up our skeletal muscle.

Answer:

H-zone is shortened in contracted sarcomere and regains its length in relaxed sarcomere

Explanation:

Sarcomere is the unit of striated muscle tissue. Its contraction and relaxation makes the muscle contract or relax. It is present between two Z-lines. Actin filaments anchor on Z-lines. Next to Z-line is the I-band which is a region of only actin filaments. Next to I-band is A-band region where both actin and myosin filaments are present. Within A-band, H-zone is present. H-zone does not have actin filaments and only consists of myosin filaments.

When a sarcomere contracts, the I-band and H-zone shorten which brings the Z-lines closer. Myosin binding sites are also uncovered on actin filaments and cross bridges are formed between them.

Later animals in evolutionary history share homologous characteristics within smaller groups derived from a common ancestor, showcasing descent with modification. Evolutionary advantages are expressed through competition and reproduction, impacting population genetics. Modern phylogenetics employs genetic, molecular, and morphological data to map these evolutionary relationships.

According to evolutionary scientists, animals that arose later in evolutionary history typically share homologous characteristics that have developed more recently and are observable within smaller, more closely related groups of organisms. As the phylogenetic tree of life demonstrates, through the concept of descent with modification, related organisms inherit many of the same characteristics and genetic codes from a common ancestor. However, over time, these characteristics undergo changes which aid in the organism's survival.

Evolution of any particular characteristic, such as sharper teeth or greater intelligence, requires that characteristic to be expressed and benefit the organism's survival and reproductive success. This process involves mature individuals competing and surviving long enough for these advantageous traits to make a significant impact on the population. Hence, animals with superior traits tend to live longer and breed more.

Modern phylogenetics integrates genetic and molecular analyses along with morphological and fossil data to determine evolutionary relationships among animals. This has greatly enhanced our understanding of the animal evolutionary tree, helping distinguish between homologous characteristics that reflect shared ancestry and analogous characteristics that may arise independently in unrelated species due to convergent evolution.

A female fox is called a “vixen”, a male fox is called a “dog fox” or a “tod” and baby foxes are called “pups”, “kits” or “cubs”. A group of foxes is called a “skulk” or a “leash”.

dogs ,tods, or reynards

The characteristic of a gymnosperm that is NOT present is seeds enclosed in fruit.

The characteristic of a gymnosperm that is NOT present is B. seeds enclosed in fruit. Gymnosperms have seeds that are not enclosed in an ovary or fruit. Instead, they are partially sheltered by modified leaves called sporophylls. Cones and needle-like leaves are characteristic features of gymnosperms.

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Transform boundary – this type of fault is found where two tectonic plates are moving alongside and parallel to each other mostly in opposite directions. This type of fault is also responsible for the rift valley and block mountains. No crust is destroyed nor new crust formed.

Convergent boundary – At this point, two tectonic plates are colliding because they are moving in opposite directions at each other. The pressure and stress of the collision force causes the plates to begin crumpling and folding at the boundary forming features such as fold mountains (an example is the Himalayas).

Convergent boundary – At this boundary , the denser of the two colliding tectonic plates (usually the oceanic plate) is subsided by the less dense one (usually the continental plate). The plate being subsided begins to melt as it does down into the mantle and becomes liquid rock. This magma rises through the fissures formed at the boundary and erupts into volcanic islands along the boundary.

Answer:

transform boundary, continental-continental convergent boundary, oceanic-oceanic convergent boundary.

Explanation:

plato / edmentum 100 percent.  

at this boundary, crust is neither created nor destroyed: transform boundary

movement along this boundary leads to crumpling, lifting, and folding of earths crust in the area where the plates are in contact: continental-continental convergent boundary

an arc of volcanic islands is often formed in the subduction zone at this boundary: oceanic-oceanic convergent boundary

Excreting urea helps in maintaining internal homeostasis by retaining water.  

The mammals like humans excrete urea, while reptiles and birds, and some terrestrial invertebrates generate uric acid as waste. Generating uric acid in place of urea is beneficial as it is less toxic and diminishes water loss and the subsequent requirement for water.  

This retention of water helps birds and reptiles to sustain internal homeostasis mainly in hot weather.  

Answer:

RETAINING WATER

Explanation:

Guanine

When DNA is extracted from E. coli cells and analyzed for base composition, it is found that 42% of the bases are cytosine. That means that there is also 42% of guanine base.

According to chargaff's rule :

DNA from any cell of all organisms should have a 1:1 ratio (base Pair Rule) of pyrimidine and purine bases and, more specifically, that the amount of guanine is equal to cytosine and the amount of adenine is equal to thymine.

In DNA, cytosine (C) always pairs with guanine (G), hence if 42% of the bases are C, then 42% would also be G according to Chargaff's rule.

In DNA, the four bases adenine (A), thymine (T), cytosine (C), and guanine (G) pair up in a specific manner due to their shapes and charges. This is known as Chargaff's rule, which states that adenine always binds with thymine (A=T) and cytosine always binds with guanine (C=G). Therefore, if 42% of the bases in DNA extracted from E. coli cells are cytosine, then 42% of the bases would also have to be guanine as they form complementary pairs.

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Plant Cell and Animal Cell:

Plant Cell Only:

Animal Cell Only:

Hope I helped! :)

Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes. ... Plant cells can be larger than animal cells.

Answer:

It can be calculate with the help of formula:

[tex]\frac{\text{Number of CFU}}{\text{Volume plated (ml) x total dilution used}} = \text{Number of CFU per mL}[/tex]

where, number of CFU is given as 98,

Volume plated = 0.1mL

Number of CFU per mL = [tex]5.8\text{ x }10^{8}\text{ cells per mL}[/tex]

Hence, [tex]\frac{98}{0.1 \text{ x total dilution used}} = 5.8 \text{ x } 10^8[/tex]

⇒total dilution used = [tex]\frac{98}{0.1 \text{ x }5.8\text{ x } 10^{8}}[/tex]

⇒total dilution used = [tex]\frac{98}{58}[/tex] x [tex]10^{-6}[/tex]

⇒total dilution used = [tex]1.69\text{ x }10^{-6}[/tex]

Mountain Gorilla because they are worth more than raccoons since you see raccoons almost everyday. They hunt animals for fur to sell, so the gorilla would be more costly since it's harder to find and kill.

Yes i agree Mountain gorlla are rare species that you dont hear everyday. its pretty normal to hear ahh a racoon. This is why mountain gorillas is the most vulnerable species to go extinct!

Answer:

a ) EVOLUTION

Explanation:

Double-stranded DNA loops around 8 histones twice, forming the nucleosome, which is the building block of chromatin packaging. DNA can be further packaged by forming coils of nucleosomes, called chromatin fibers. These fibers are condensed into chromosomes during mitosis, or the process of cell division.

Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.

During DNA packaging, long pieces of double-stranded DNA are tightly looped, coiled, super coiled, and folded so that they fit easily within the cell.  This highly compacted DNA is then arranged into structures called chromosomes.

Aerobic respiration requires oxygen specifically during the electron transport chain, which is the final stage of this process occurring in the mitochondria. Oxygen serves as the final electron acceptor, facilitating the production of ATP and water as byproducts.

The part of aerobic respiration that requires oxygen is the electron transport chain. This stage of cellular respiration is crucial for producing the bulk of ATP (adenosine triphosphate) and occurs after glycolysis and the Krebs cycle. In aerobic respiration, oxygen acts as the final electron acceptor in the electron transport chain. Without oxygen, the high-energy electrons from NADH and FADH2 could not be passed down the chain, which is essential for producing ATP. The oxygen attracts the electrons down the electron transport chain and in the process, combines with hydrogen ions to form water, which is a byproduct of this reaction. This process occurs in the mitochondria, the powerhouse of the cell, and is pivotal for extracting maximum energy from glucose.

For organisms living in environments rich in oxygen, such as humans, aerobic respiration is an efficient way to generate energy. We breathe in oxygen which is then transported to our cells for use in aerobic respiration. It's important to note that during intense activity when oxygen becomes scarce, our muscles may temporarily switch to anaerobic glycolysis, leading to the production of lactate and a lower yield of ATP.

Mitosis maintains complex organisms primarily through the process of cell division to repair tissues and heal injuries.

Mitosis is an essential biological process by which cells in organisms divide to create identical daughter cells. While mitosis is crucial for several processes in the body, out of the options provided, it most directly relates to D) the healing of a cut after an injury. This is because when a cut or any other form of injury occurs, the body must create new cells to repair the damaged tissue, which is facilitated through the process of mitosis.

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Mitosis is essential for growth and healing in complex organisms. It ensures cells are duplicated accurately, particularly in the healing of injuries. Therefore, the correct answer is D) the healing of a cut after an injury.

Mitosis is a vital process for maintaining complex organisms through the production of body cells for growth and healing. It involves the duplication and segregation of chromosomes to ensure each daughter cell is identical to the parent cell. Among the given options, mitosis is directly related to healing of a cut after an injury, making option D the correct choice.

During mitosis, the following stages occur:

This process allows tissues to grow, repair, and replace damaged or worn-out cells, crucial for maintaining body functions and structure.

B.the nerves in the finger detect stimuli and send the message to the brain

Hope this helps

The correct answer is option B

The Piper touches a block of ice and she feels that it is very cold, this sensation is felt as the sensation of cold.

This is because, the nerves in the finger detect stimuli and sends the message to the brain.

The external stimuli is recognized by the nerves present on the finger and then these nerves sends the message to the brain regarding the sensation.

This message is recognized by the brain and detected as cold sensation.

Answer:Haploid

Explanation:

It is a type of cell division.which reduces the chromosome number by half which creates four haploid cells.

These four haploid cells are are genetically distinct from their parents  cell that gives rise to them.

This process takes place in all the eukaryotic species which includes human beings, animals et cetera.

Error during the process of meiosis can result in various types of deformities in the body.

The correct answer is option A, that is, the Earth is spinning on its axis.  

The westerlies refer to the prevailing winds that blow from the west to the east in the mid-latitudes, that is, in between 10 and 60 degrees. The wind blows from the regions of higher pressure to the region of lower pressure, but it does not blow in a straight line.  

This is generally because the Earth is rotating on its axis. The spin of the Earth makes winds to bend towards the right in the northern hemisphere and towards the left in the southern hemisphere. This is known as the Coriolis effect.  

Answer:

earth spinning on its axis

Explanation:

Answer: NADPH and ATP

Explanation:

The mechanism of photosynthesis can be divided into two phases, light reaction, and carbon fixation. During the light reaction, photosynthetic pigments absorb radiant energy and undergo a series of photochemical reactions and convert the trapped energy into chemical energy which is stored in the form of NADPH and ATP. These two compounds constitute the assimilatory power. Light reaction is light dependent and it takes place in the grana of the chloroplast.

Because the thermosphere has the highest level of direct sunlight, its atoms contain the highest amount of energy.

The sun's radiation strikes it first.

(APEX)

DISASTERS . Can change a group of animals envireonment and can make a new environmetn for a new community

Answer:

could increase the carrying capacity for one species because they would be consuming the other species a lot and growing larger in population, while the other species would decrease dramatically because they are being hunted. An example of this would be the introduction of the invasive species lionfish that began growing a lot because they were eating a lot of the other species, and the other species began dying out and decreasing in population.

It's KH2PO4(Mono Potassium Phosphate).