Which part of the plant cell is responsible for storing excess water?
O chloroplast
O mitochondria
O ribosomes
O vacuole​

Answer:

B

Explanation:

Answer:

it's a because

When we burn oil, coal, and gas, we change the ocean's basic chemistry, making it more acidic. Our seas absorb as much as a quarter of all man-made carbon emissions. Since the start of the Industrial Revolution (and our coal-burning ways), the ocean has become 30 percent more

Answer:

A - Burning coal

Explanation: When you burn coal you create polution which contributes to global warming, and global warming warms up the earth.

The DNA double helix must first be "unzipped" or split into two single strands during replication before nucleotides can be added to a new DNA strand.

The first two steps of DNA replication are initiated sequentially. The two DNA strands are then pulled apart by a protein called helicase, which binds to and dissolves the hydrogen bonds connecting the bases on the DNA strands.

The total process of initiation can be broken down into four phases: identifying the replication origins, putting together the pre-replication complexes, activating the replicative DNA helicase(s), and loading the replicative enzymes.

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Some enzymes that are present in lysosomes include the following below and they help in substance engulfing by breaking down all types of biological polymers.

This is referred to as a membrane-enclosed organelles that contain an array of enzymes capable of breaking down all types of biological polymers such as proteins, carbohydrates etc in the cells of living organisms.

When the substances are broken down into simpler substances, it makes it easier for the lysosome to engulf them so as to prevent different forms of unwanted occurrences which is therefore the reason why it was chosen as  the correct choice in this scenario.

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Exhaling removes waste from the body by expelling carbon dioxide through the respiratory system.

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Because hemoglobin is compartmentalized inside the RBCs, lysis of RBCs is necessary for accurate measurement of hemoglobin levels.

Hemoglobin is a complex found in blood which is responsible for transporting oxygen to cells of the body.

Hemoglobin is composed of heme and the proteins alpha and beta globin.

Hemoglobin is found within the cytoplasm of red blood cells.

Since hemoglobin is compartmentalized inside the RBCs, lysis of RBCs is necessary for accurate measurement of hemoglobin levels.

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The phylum with the greatest number of different species: Generally, the Phylum Arthropoda (which includes insects, spiders, and crustaceans) has the highest number of species globally.

The most difficult phylum to find: This would depend on the specific region and habitat. Some phyla like Porifera (sponges) or Echinodermata (starfish, sea urchins) might be hard to find in a terrestrial environment because they're primarily marine.

Phyla you could not find at all: This again would depend on your location. If you're not near a body of water, you're unlikely to find any members of the Phylum Cnidaria (jellyfish, corals, sea anemones) or Phylum Mollusca (squid, octopus, snails) for example.

Animal diversity: Diversity varies greatly depending on the region. Biodiversity hotspots, such as rainforests or coral reefs, have a high level of species diversity. Conversely, more extreme environments like deserts or polar regions have less diversity.

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The model ecosystem is in sunlight, and there are better energy hold molecules in the  flora and  fauna . The model ecosystem is hidden so no light gets in, and there are rarer energy hold molecules in the flora and  fauna.

All ecosystems need energy from an outer resource – this is mostly the sun. flora require sunlight to photosynthesise and make sugar for an energy resource for other.

Thus, The model ecosystem is hidden so no light gets in, and there are rarer energy hold molecules in the flora and fauna.

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In the given figure, 7. Mitochondria, 8. Nucleus, 9. Nucleolus, 10. Lysosome, 11. Golgi body, 12. Cytoplasm, 13. Cell wall, 14. Rough ER, 15. Smooth ER, 16. Cilia.

A membrane-bound organelle called a lysosome is present in many mammalian cells. They are spherical vesicles that can degrade a wide range of biomolecules thanks to hydrolytic enzymes they carry. The proteins that make up a lysosome's membrane and lumen have a distinct makeup. The pH of the lumen, which is between 4.5 and 5.0, ideal for the hydrolysis-related enzymes, similar to how the stomach functions. In addition to degrading polymers, the lysosome also plays a role in energy metabolism, secretion, plasma membrane repair, apoptosis, and cell signaling.

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Oxygen is formed during photosynthesis as a waste product after water is split into hydrogen ions and oxygen. The oxygen is released into the atmosphere.

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize food with the help of chlorophyll. During photosynthesis, plants absorb water from the soil through their roots, and carbon dioxide from the air through small pores called stomata.Using energy from sunlight, the chlorophyll in the plant cells convert these raw materials into glucose, a type of sugar that plants use as food.

One of the byproducts of photosynthesis is oxygen. Oxygen is produced during the light-dependent reactions of photosynthesis, where water molecules are split into hydrogen ions and oxygen atoms using the energy from sunlight. The oxygen atoms combine to form O2, which is then released into the atmosphere as a waste product.

The release of oxygen during photosynthesis is crucial for life on Earth. Oxygen is essential for the survival of most living organisms, as it is required for respiration.

Respiration is the process by which living cells convert glucose and oxygen into energy, water, and carbon dioxide. Without oxygen, most living organisms, including humans, would not be able to survive.

In summary, oxygen is produced as a byproduct during the process of photosynthesis, where it is released into the atmosphere as waste. This process is essential for the survival of most living organisms, as oxygen is required for respiration.

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A solid is held in shape by strong intermolecular forces. Therefore, the correct option is (A).

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Answer:A

Explanation:

Under genetic drift effects, the allelic and genotypic frequencies of a population change through generations. In the exposed example, the frequency of the white allele in the same population at the same time is f(b) = 22%.

-------------------------

Available data:

We need to find out the frequency of the recessive allele is this new population. But before answering the question, let us review what the genetic drift is.

According to this information, we know that allelic frequencies vary from generation to generation. So probably, if we need to calculate allelic and genotypic frequencies in the next generation, they will be different from the frequencies in this generation.

However, in this problem, we need to determine the frequency of the recessive allele at the same time, meaning in the present generation.

Since they are frequencies, their addition must equal one. So all we need to do is to clear the following equation,

p + q = 1

being

0.78 + q = 1

q = 1 - 0.78

q = 0.22 = 22%

The frequency of the white allele in the same population at the same time is f(b) = 22%.

---------------------------

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Homologous chromosomes are paired because they carry the same genes in the same order, although the alleles for each trait may differ.

During meiosis, the homologous chromosomes align during prophase I and exchange genetic material through a process called crossing over, which contributes to genetic diversity.In human beings, a pair of homologous chromosomes is present in every cell, one from each parent.

In females, the two X chromosomes are homologous pairs, while in males, the X and Y chromosomes are not homologous pairs since they carry different genes. During fertilization, the homologous chromosomes from the two parents pair up, and each gamete contains only one of each homologous chromosome.

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Answer:

The answer is not provided in the given text. It only mentions that we have between 30 to thousands of chemicals in our bodies that our grandparents didn't have and some of these chemicals are linked to chronic childhood diseases.

Explanation:

Answer:

multicellular

Explanation:

The endometrium is the inner lining of the uterus, which is a female reproductive organ.

It is a highly vascularized tissue that undergoes cyclic changes in response to hormonal signals from the ovaries. Every menstrual cycle, the endometrium thickens in preparation for a potential pregnancy, and if pregnancy does not occur, the endometrium is shed in the form of menstrual bleeding.

In addition to its role in fertility and menstruation, the endometrium is also involved in implantation of a fertilized egg and the growth and nourishment of the developing fetus during pregnancy.

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There are different alleles of genes that code for all the different traits organisms can express.

Even though there are 50,000 genes in every cell, only about 10% of them are expressed or switched on in any specific cell type.

Only a small fraction of a cell’s genes are transcribed at any given time. The variation in gene expression profiles among different cell types is due to the presence or absence of different sets of transcription regulatory factors. Some regulatory factors are designed to facilitate transcription, while others are designed to inhibit or inhibit transcription.

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Answer:

\(\boxed{Option \ 2}\)

Explanation:

=> In the first graph, we come to know that winters are colder and summers are hotter.

=> In the second graph, winters have more precipitation than summer.

=> On the whole, Winters have lower temperature and more precipitation than summers.     ← [Option 2]

=> Summers have high temperatures and less precipitation.

Answer:

\(\boxed{\sf Option \ 2}\)

Explanation:

We can see in the first graph that the winter months have a lower temperature compared to the summer months. The summer months have higher temperatures.

In the second graph, the winter months have much higher average precipitation compared to the summer months. The summer months have lower average precipitation.

Winters have lower temperatures and more precipitation than summers.

Organisms capable of sexual reproduction are diploid. Humans only have haploid cells in the egg and sperm.

Reproduction is defined as the process by which new organisms (offspring) of the same sort are created. It contributes to evolution by generating variants through genetic recombination. The ecosystem's species diversity is aided by it.

Two complete sets (2n) of chromosomes are present in diploid cells. A haploid cell only has one complete pair of chromosomes and has half as many chromosomes (n) as a diploid cell.

Thus, organisms capable of sexual reproduction are diploid. Humans only have haploid cells in the egg and sperm.

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Answer:

lichens breaking down bare rock

&

existing soil​

Explanation:

Secondary succession can only occur with grass and this makes the difference between primary and secondary.

Lichen slowly break down rock to make soil.

Answer:

The expected double recombinant frequency = 0.0402 = 4.02%

Explanation:

Available data:

→ Two genes that are very close will have a few recombination events and are strongly bounded.

→ The map unit is the distance between the pair of genes for which every 100 meiotic products, one of them results in a recombinant one.

1) First, we need to know their order in the chromosome, and to do so, we need to compare the distances between them.

The most distant pair is a-pr

----a---------------------------------------------pr---

    ║-------------------44,7 MU-------------║

From  gene a to vg there are 32.2 MU

----a-----------------------------vg--------------pr---

    ║-------------------44,7 MU-------------║

    ║----------32.2 MU------║

Finally, de distance from vg to pr is 12.5 MU

----a-----------------------------vg--------------pr---

    ║-------------------44,7 MU---------------║

    ║----------32.2 MU------║--12.5 MU--║

We can name region I to the distance between a-vg, and region II to the distance between vg-pr.

2) To calculate the recombination frequency, we have to know that 1% of recombinations = 1 map unit = 1cM. And that the maximum recombination frequency is always 50%.

1 MU -----------1% of recombination

32.2 MU -----X =  32.2 % of recombination

12.5 MU-------X =  12.5 % of recombination

3) The expected double recombinant frequency = recombination frequency in region I x recombination frequency in region II.

The expected d. recombinant frequency = 32.2%  x  12.5% = 0.322 x 0.125

The expected double recombinant frequency = 0.0402 = 4.02%

The strategies that include in poster are Respect, Collaboration, Listening and Kindness where learners can create a safe and welcoming environment that celebrates diversity and promotes inclusion.

As a teacher, it is important to promote inclusion in the classroom and create a safe and welcoming environment for all learners. To achieve this, a poster titled “INCLUSION IN OUR CLASSROOMS” can be designed to raise awareness among learners. The poster can be designed with bright colors, images, and fonts to make it attractive and eye-catching.

Four strategies that can be included in the poster are:

Respect: Encourage learners to respect each other's differences and backgrounds. This means not making fun of others for being different and accepting everyone for who they are.

Collaboration: Encourage learners to work together and support each other. This means helping each other with schoolwork and projects, and not leaving anyone out.

Listening: Encourage learners to listen to each other's opinions and ideas. This means being open-minded and respectful of other people's views.

Kindness: Encourage learners to be kind to one another. This means being friendly, helpful, and considerate of others.

For each strategy, learners should be encouraged to behave in a specific way. For example, for the strategy of respect, learners can be encouraged to behave by avoiding negative comments and treating each other with kindness and respect. For collaboration, learners can be encouraged to work together in groups and share their ideas. For listening, learners can be encouraged to pay attention to each other and ask questions to understand each other better. Finally, for kindness, learners can be encouraged to show acts of kindness towards each other, such as helping each other with schoolwork or simply being friendly.

In conclusion, promoting inclusion in the classroom is vital for creating a positive and supportive learning environment. The "INCLUSION IN OUR CLASSROOMS" poster can serve as a reminder for learners to respect, collaborate, listen and be kind to each other. By following these strategies, learners can create a safe and welcoming environment that celebrates diversity and promotes inclusion.

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Sexual reproduction in plants involves the fusion of male and female gametes to produce offspring with genetic diversity.

Mechanisms that facilitate sexual reproduction in plants are examples:

1)Pollination and Fertilization: Many plants rely on pollinators, such as bees, butterflies, or birds, to transfer pollen from the male reproductive structures (anthers) to the female reproductive structures (stigma) of flowers.

This process enables the fusion of sperm cells within the pollen with egg cells in the ovules, leading to fertilization.

Examples include flowering plants like roses, sunflowers, and apple trees.

2)Seed Production: After fertilization, the ovule develops into a seed. Seeds contain an embryo, formed by the fertilized egg, enclosed within a protective seed coat.

The mature seeds can disperse and germinate to give rise to new plants.

Various plant groups, including angiosperms (flowering plants) and gymnosperms (conifers and cycads), reproduce sexually through seed production.

3)Alternation of Generations: In plants with a complex life cycle, such as ferns, mosses, and liverworts, sexual reproduction involves an alternation between two distinct generations: the gametophyte and the sporophyte.

The gametophyte generation produces gametes (sperm and eggs) through specialized structures, while the fusion of gametes gives rise to the sporophyte generation, which produces spores.

4)Self-fertilization: Some plants have the ability to self-fertilize, where the pollen from the anther of a flower is transferred to the stigma of the same flower or another flower on the same plant.

This allows for sexual reproduction without the need for external pollinators. Self-fertilization can be seen in plants like tomatoes, peas, and certain grass species.

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The table Paramecium Contractile Vacuole Contractions which correctly describes the bars on a bar graph representing the data is the bars range from tallest for very high concentration to shortest for very low concentration.

The data in the table records the number of contractions per minute of a paramecium's contractile vacuole in response to different salt concentrations in the surrounding environment.

A bar graph representing this data would have five bars, one for each level of salt concentration.

The bars would vary in height according to the number of contractions per minute, with the tallest bar representing the highest salt concentration and the shortest bar representing the lowest salt concentration.

Therefore, the correct statement describing the bars on the bar graph would be: "The bars range from tallest for very high concentration to shortest for very low concentration."

This statement accurately describes how the height of the bars would vary based on the data in the table.

The other statements do not accurately represent the data or the trends observed in the table.

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Answer:

B

Explanation:

Answer:

the pepper was uncharged

Explanation:

Answer:

B

Explanation:

Answer:

sure what's your problem.

Explanation:

Tell me.

Answer:

Cell wall, chloroplast, vacuole. Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, whereas animal cells do not.

Explanation:

The main difference between plant cells and animal cells are cell wall and chloroplast , whereas for the vacuole plants have a vacuole called vescile which is not the same as the vacuole in plant cells.

Vacuoles are very large as they are needed to store water and they mostly contain water and sugars . On the other hand, vesicles are small and contain water, nutrients, enzymes, wastes, solution of water or food etc. This is the key difference between vacuoles and vesicles. hope it helps :)