so i need help with science how do u sent pictures ?​

Answer:

Pauline and David are talking about the use of resources in a sustainable manner so that both humans and living organisms can co-exist and enjoy the benefits of nature. Pauline is a conservationist whereas David lives in a biodiversity hot spot. The conversation starts when David and Pauline meet in an ecology conference. Pauline is standing in front of poster talking about conservation of environment and wildlife. David pass by and see that the topic is quite interesting.

David: Hey, I like your topic of presentation.

Pauline: Thank you! are you also a conservationist?

David: I wish I could be but my job nature doesn't allow me to work in this area. However, I truely care about the wildlife which are being threatened in my neighbourhood...

Pauline: Oh, I am sorry to hear that... Where do you live?

David: I live between the city and forest, which is being affected by humans interventions. I see everyday a lot of animals dying on roads because they are forced to migrate because of forest cutting, however, while doing so, they are killed by human's actions.

Pauline: I absoultely hate this behavior of humans. I think human's should understand the importance of other organisms in biogeochemical cycles otherwise our generations are going to pay a lot for this.

David: Definitely, I wish we could reverse such decisions but again, they are not easy. With growing human's populations, we need to adjust everything accordingly.

Pauline: You are right. But we can develop strategies where both humans and animals can live in hormony, such as development of ecological corridors in a forest if we want to make a road, could help these creatures to survive well.

David: I cannot agree more. I hope such things are encouraged in near future. But I really liked your idea and would like to discusss sometime later.

Pauline: Sure, you can visit me anytime in my office at XYZ location.

David: Thank you, see you than!

Pauline: See you!

Final answer:

A script of dialogue between a conservationist and a local person in a biodiversity hotspot was created to find a compromise that includes sustainable livelihood practices like agroforestry or eco-tourism, along with support mechanisms like microloans and community conservation banks.

Explanation:

The dialogue below represents a conversation between a conservationist and a local person living in a biodiversity hotspot who wishes to use natural resources for their livelihood. The conversation aims to reach a compromise that satisfies both the need for livelihood and the importance of conserving biodiversity.

Conservationist: Hi there, I understand that you rely on the resources here to support your family. However, this area is crucial for biodiversity. We need to find a balance that allows you to make a living while preserving our natural heritage.

Local Person: I recognize the importance of conservation, but I need to provide for my family. What solutions can we work on together?

Conservationist: We can explore sustainable methods like agroforestry or eco-tourism, which can generate income for you and protect the environment. Additionally, we can look into microloans or community conservation banks to help you transition to these practices.

Local Person: That sounds promising. I'm willing to try new approaches if it means a stable future for my family and the environment.

Conservationist: Great! Let's work together on training and implementing these methods. We can also involve the community in conservation efforts to ensure a collective benefit.

The correct answer is A. Hydrogen Bond. This is a type of polar attraction that occurs when a hydrogen atom experiences the attraction to a nearby highly electronegative atom.

The type of polar attraction among the options listed is Hydrogen Bond.

A hydrogen bond is a type of polar attraction that occurs when a hydrogen atom bonded to a highly electronegative atom such as nitrogen, oxygen, or fluorine, experiences the electrostatic forces of attraction to some other nearby highly electronegative atom. This happens because of a significant difference in electronegativity causing the bond between them to be polar.

On the other hand, an ionic bond is formed by the transfer of electrons; a covalent bond is characterized by the sharing of electrons; and a metallic bond involves pooling of electrons.

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Answer:

Both cloning and gene therapy are types of biotechnology.

Cloning is a type of biotechnology and gene therapy is not a type of biotechnology.

Final answer:

Both cloning and gene therapy are types of biotechnology. Cloning refers to making copies of a gene, while gene therapy involves introducing functional genes to correct genetic disorders or fight diseases.

Explanation:

The correct statement that compares cloning and gene therapy is that both are types of biotechnology. Biotechnology is the application of technology to modify the genetic material of living organisms for human purposes. Gene cloning refers to the process of making copies of a specific DNA segment, such as a gene, which can be useful in many scientific and medical applications. The polymerase chain reaction (PCR) is a technique used in molecular biology to amplify a single copy or a few copies of a segment of DNA across several orders of magnitude, creating thousands to millions of copies of a particular DNA sequence.

Gene therapy, on the other hand, is a technique that involves the introduction of functional genes into cells to correct genetic disorders or to fight diseases like cancer. Gene therapy can be performed either inside the body (in vivo) or outside the body (ex vivo). The use of biotechnology has resulted in advances like producing human proteins such as insulin in bacteria and developing transgenic crops with improved characteristics.

Both cloning and gene therapy raise various ethical, legal, and social issues, reflecting the complexity and impact of biotechnological advancements on society.

Answer:

blood and cells

The circulatory system removes waste products from both blood and cells.

The circulatory system is a vital component of the human body that serves the crucial role of removing waste products from both the bloodstream and individual cells. It consists of the heart, blood vessels, and blood. As the heart pumps oxygen-rich blood throughout the body, it also collects waste materials, such as carbon dioxide and metabolic byproducts, from various tissues.

This deoxygenated and waste-laden blood returns to the heart and is then pumped to the lungs, where carbon dioxide is expelled and oxygen is replenished. Simultaneously, waste products are filtered by the kidneys, eventually exiting the body as urine. This continuous circulation ensures efficient waste removal and sustains overall bodily functions.

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Answer:

Environmental change

Explanation:

The color of the peppered moth change due to environment changed. At that time, a manifestation of industrial melanism was the rise in the number of dark-colored moths, hence option B is correct.

The peppered moth's evolution is an example of how air pollution during the Industrial Revolution caused directional color changes in the moth population.

The two color variants of moths evolved over time, with the black moths becoming more prevalent. The dark individuals were more successful after the trees altered because natural selection preferred them. A little difficult to believe, Since these conditions began to improve starting in the 1950s, more observations have been made.

Therefore, due to environment conditions, the color of the peppered moth changed.

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Answer:

B. Proteins

Explanation:

Answer:

B. Protein

Explanation:

Haemoglobin are iron containing protein in the blood of many animals while enzymes are catalytic protein responsible for complex biochemical reactions that takes place in plants and animals.

Answer:

A. more oxygen to enter the atmosphere

Explanation:

Photosynthesis is a metabolic process unique to the cells of autotrophic organisms, due to the possession of the CHLOROPHYLL pigments used in trapping light energy from the sun. Photosynthesis is the process of combining carbondioxide (CO2) and water (H2O) using energy of sunlight to produce glucose and release oxygen gas.

Based on the understanding of the photosynthetic process which is similar in all photosynthetic organisms including photosynthetic prokaryotes e.g. cyanobacteria, the presence of the photosynthetic PROKARYOTE will allow more oxygen in the atmosphere.

Note that, oxygen is released during photosynthesis.

The genetic material that is involved in a cell in order to maintain the genetic continuity along with the genetic diversity that is required for the inheritance to go on all lies in the cytoplasm. The correct answer is option B.

Gene is the genetic unit of inheritance.

Multicellular organisms use cell division, mitosis, for growth and the maintenance and repair of cells and tissues. Single-celled organisms may use cell division as their method of reproduction. Regardless of the reason for mitosis, the process ensures genetic continuity that definitely is the cytoplasm where the genetic material and the genetic units all are present in the cytoplasm.

There are few cells in the body that do not undergo mitosis: most somatic cells divide regularly, some more than others. In this case the check points will help to check the DNA structure and the damage that is being done in the  sequence in order to check that a;ll the bases are arranged properly or not.

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Answer:

3 openings mouth and ears

I am not sure the second part

Explanation:

The skull has several openings through which structures pass, such as the spinal cord, optic nerve, and blood vessels to the eye.

The skull has several openings, known as foramina, through which various structures pass. There are eight main openings in the skull:

These are just a few examples, each opening has specific organs or structures associated with it.

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Answer:

I think that the answer is A

Answer:

Biosphere

Explanation:

The Biosphere contains all living things. Atmosphere contains Air and gases. Hydrosphere is all waters on earths surface. Lastly, Lithosphere is the crust and upper mantle.

Final answer:

Humans exist in the biosphere, which is the sphere that includes all living organisms on Earth and their interactions with the lithosphere, hydrosphere, and atmosphere.

Explanation:

The sphere of Earth in which humans exist is called the biosphere. This is because the biosphere refers to all living organisms on Earth, including humans, and their interactions with the other spheres. These other spheres include the lithosphere (the solid land part of Earth), the hydrosphere (water in all its forms), and the atmosphere (the layer of gases surrounding the Earth). Humans interact with the lithosphere by living on it, the hydrosphere by using water for various activities, and the atmosphere by breathing in the air.

Answer:

Answer:

DescriptionPredation is a biological interaction where one organism, the predator, kills and eats another organism, its prey. It is one of a family of common feeding behaviours that includes parasitism and micropredation and parasitoidism.

Explanation:

Answer:

1. domestic use

2. water availability

3. habitat loss

4. war

5. growing in size

Explanation:

Answer:

1. Power Plants
2. Water Availability

3. Habit Loss

4. War

5. Growing In Size

Explanation:

Answer:

I would say it is B.

Explanation:

In Meiosis, specifically in Prophase 1, it creates genetic variation. Crossing over occurs in that stage

Final answer:

Statement B is not true about meiosis; offspring produced by meiosis are not genetically identical to the parent cell due to crossing over and independent assortment during Meiosis I and II.

Explanation:

The question is asking which of the statements about meiosis is not true. The correct answer is B. Meiosis does not produce offspring that are genetically identical to the parent cell. Instead, meiosis is a two-stage process (Meiosis I and II) that results in genetically diverse gametes. In contrast to mitosis, meiosis starts with a diploid cell, which has two sets of chromosomes, and through one round of DNA replication followed by two rounds of cell division, ends up creating four haploid cells. These cells have half the number of chromosomes of the parent cell, and due to processes like crossing over and independent assortment, they contribute to genetic variation in offspring.

Statement A is incorrect because meiosis actually starts with the same number of chromosomes as mitosis; it is the end product that has half the number of chromosomes. Statement C is true because during sexual reproduction, each parent contributes 23 chromosomes, which combine to make a total of 46 in the offspring. Statement D is also true, as meiosis includes two stages of division, Meiosis I and Meiosis II, which are necessary to reduce the chromosome number by half and ensure genetic diversity among the gametes produced.

Answer:

In the Amazing World Inside a Cell, it says “Golgi complex, a short and narrow structure inside the cytosol. The Golgi complex processes them and sends the molecules to their final destinations inside or outside the cell.” This means that the Golgi complex is like a phone. You send the message on the phone to get to the other person maybe inside or outside your house.

Answer:

falso

Explanation:

Las únicas células humanas que no contienen pares de cromosomas son las células reproductoras, o gametos, que portan solamente una copia de cada cromosoma

The statement is true; gametes are reproductive cells with half the chromosomal content of somatic cells and are produced through meiosis.

The statement that the reproductive cells, which have half the number of chromosomes as other cells in the body, are called gametes is TRUE. Gametes are indeed significant in the process of sexual reproduction as they contain half the genetic material required to form a new organism. Unlike somatic cells (body cells), which are diploid and contain 46 chromosomes (23 pairs), gametes are haploid and carry only one set of 23 chromosomes. These reproductive cells are produced through a special type of cell division known as meiosis, ensuring that each gamete gets just half of the organism's DNA. In humans, the male gametes are called sperm, which are produced in the testes, and female gametes are called eggs, produced in the ovaries. When these gametes combine during fertilization, they form a diploid zygote with the complete set of chromosomes necessary for the development of a human being.

Answer: By injecting their genes into other bacteria, the receiving bacteria immediately has their DNA instead of having to wait months to create new bacteria. By having new genes, bacteria can be stronger to fight off anything that could harm it.  

Explanation:

Bacteria use horizontal gene transfer, particularly conjugation, to rapidly acquire new DNA sequences from other bacteria, enabling faster adaptation and evolution, especially in rapidly changing environments like the presence of antibiotics.

Bacteria accelerate the process of evolution by using a mechanism called horizontal gene transfer, which allows them to acquire large DNA sequences from other bacteria in a single event. This mechanism includes processes such as conjugation, transformation, and transduction. Conjugation, specifically, involves the direct transfer of DNA from one bacterium to another via physical contact, enabling the recipient to acquire new genetic traits that can be beneficial for survival and adaptation, such as antibiotic resistance.

Compared to mutation, which occurs at a slower rate (10-6 to 10-9 per nucleotide per bacterial generation), horizontal gene transfer facilitates the rapid exchange of genetic material, allowing bacteria to quickly adapt to environmental changes. This is crucial when facing selective pressures or new environments, as it may confer an advantage for survival without the need for the lengthy process of mutation-based evolution. With the short generation time of bacteria, sometimes just a few minutes, combined with genetic recombination and a high mutation rate, the capacity for rapid evolution is significantly enhanced, making bacteria highly adaptable organisms.

In response to a cholera outbreak, the national government could enforce the Clean Water Act, enforce stricter wastewater disposal guidelines, promote global clean water use, and increase fines for non-compliance with water treatment regulations. They would not likely fine water treatment plants for using chlorine.

In response to a cholera outbreak, the national government would most likely employ several strategies. First and foremost, lawmakers might propose new rules under the established Clean Water Act to ensure widespread safe water use and discourage practices that exacerbate the spread of cholera. In addition, they could enforce stricter wastewater disposal guidelines for industrial plants, requiring companies to follow certain procedures to prevent contamination of water bodies.

Federal agencies may also collaborate with various departments to construct initiatives promoting the use of clean water, both domestically and globally. This could include public awareness campaigns and resource allocation to improve water sanitation. Moreover, non-compliance with public water treatment regulations might be met with increased fines, encouraging adherence to safety protocols. Meanwhile, Chlorine is commonly used in water treatment to eliminate harmful bacteria, including cholera; hence, water treatment plants would not necessarily be fined for using chlorine unless misused in a way that contravenes established regulations.

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Answer:

The Poles like North Pole and South Pole

Explanation:

mark brainliest :)

Answer: The door is the cell membrane

Explanation: cell membranes control what enters and leaves a cell

Answer: The boss is the Nucleus

Explanation: It controls what happens within the cell

Answer: The machine is the Golgi apparatus

Explanation: This organelle processes, sorts, packs and delivers the products to the cell

The machines in a shoe factory analogy represent ribosomes in the cell, which are responsible for assembling proteins, similar to how machines produce shoes from raw materials.

In a cell, ribosomes read the genetic instructions carried by mRNA and assemble amino acids into proteins based on these instructions, similar to the way machines in a factory produce shoes from raw materials based on design specifications.

Ribosomes can be found attached to the rough endoplasmic reticulum, making it appear bumpy, and are responsible for producing many proteins that enter the endoplasmic reticulum where they are modified and packaged. Others float freely in the cytoplasm, contributing to various cellular functions, akin to machines producing different parts or types of shoes in different areas of a factory.

An allele is a variant form of the gene, which is present on the same loci of the chromosome as the gene. The allele can have different phenotypic characters.

In the given cross, the purebred dominant for the white wool with purebred recessive for black wool will result in 100% progeny with white wool.

The dominant alleles are those, which are expressed phenotypically in an organism, whereas the recessive allele is masked by dominant and can be expressed in purebred conditions.

In the given dominant for White wool and recessive black wool, the cross is represented in the attachment below.

The cross between purebred dominant for white and purebred recessive for black is:

WW x ww

Therefore, each offspring will exhibit white wool in heterozygous conditions.

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Answer:

white wool

Explanation:

Answer:

The correct answer is option A. "a fossilized fish found in a layer of rock estimated to be between 15,000 and 25,000 years old".

Explanation:

It is estimated that the oldest fossils that can be reliably measured using carbon-14 must be organic and have an age of around 50,000 years. Therefore, a fossilized fish found in a layer of rock estimated to be between 15,000 and 25,000 years old will fit perfectly to be dated using carbon-14. Anything older than 50,000 years old must be dated using other radiometric dating approaches.

I think the answer is

1.c

Answer:

mitosis

Explanation:

Answer:

Vestigial structures.

Each daughter cell would only receive half the genetic information necessary for normal cellular functions.

A cell will divide into daughter cells that carry incomplete genetic material if it is unable to finish its DNA replication before doing so. There could be serious repercussions from this insufficient genetic information, including as developmental problems and genetic disorders.

Crucial cellular functions like transcription and translation would be hampered in the absence of a complete copy of DNA, making it more difficult for daughter cells to carry out vital tasks. In the end, this might result in disease development, cellular malfunction, and possibly even cell death. Therefore, in order to preserve genetic integrity and guarantee the appropriate operation of cells, DNA replication must occur prior to cell division.

Hi there!!

The answer is C.

The smoke from a cigarette can paralyze or even kill cilia!! Also, when smoking burns little holes in the lungs, the overabundant mucus gathers there. Bacteria and viruses get caught in these pools, causing the smoker to cough forcefully to attempt to remove the excess mucus.

Hope this helps!!

Difference between a runner spitting versus just someone standing still

Explanation:

Runners while running do breathe, pant, and heave heavily which leads to spitting in the open as a habitual practice. This spitting while on motion leads to heavy dispersal of aerosol droplets which suspends in the air.

Droplets due to respiratory or spitting sources from any person who is infected with any infectious and contagious viral, bacterial, or other infectious diseases will have high chances of the pathogen present in them.

Further the rate and spread of droplet dispersal and transmission of pathogen will be higher compared to that from someone standing still. This puts greater potential for the spread of such droplet transmitted diseases.

Hence proper distancing should be maintained between runners and others to prevent spread of droplet transmitted diseases.

Answer:

B. the pineal gland during the night

Explanation:

Answer:

The answer would be B, the pineal gland during the night.

Explanation:

The secretion of melatonin is triggered by darkness, therefore produced during the night.