This is an evolutionary event in which population size is Radically reduced usually because of of a catastrophic event

Vacuole.

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synapse are the communication between nerve cells , it helps one neuron to talk to the next neuron creating a continuous impulse

The correct answer is option A, that is, a ratio of 1 carbon atom to 2 hydrogen atoms to 1 oxygen atom.  

Carbohydrates are the main source of diet, they provide energy to the body, mainly via glucose, a basic sugar, which is a part of the starch and an ingredient in various staple foods.  

The carbohydrates can be signified by the stoichiometric formula, that is, (CH2O)n. It can be also be stated that the ratio of the carbon to hydrogen to oxygen is 1: 2: 1 in the molecules of carbohydrates. Carbohydrates are further categorized into three sub-kinds, that is, monosaccharides, disaccharides, and polysaccharides. The monosaccharides are the simple sugars, for example, glucose.  

Hello  Suki00

The answer to your question would be that there will be water shortages if too much water is removed from the ecosystem.

:)

Answer:

I belive the correct answer is cuticles

Explanation:

i think this is the answer because the definition is  the waxy, water-repellent layer found on the outer covering of plants that prevents injury and water loss

A star remarkably ruptured about 7,500 years ago established about 6,500 light years away. The explosion states that the star was brighter than million suns and it was visible during day light which amazed the Chinese astronomers. There were amazed at the appearance of the bright star. Many years later, the arrival of the telescope, astronomers launch a nebula which is a cloud like structure and that it is a remnant of  a shattered star. The astronomers detected the promptly rotating neutron star - a pulsar surrounded by a gas envelope. Now Indian astronomers, combine powerful Cadmium-Zinc-Telluride imager on the on panel the indian astronomy satellite, AtroSat, have achieved  the most absolute X-ray polarization measurement of the Crab nebula.

Answer:

radio waves

Explanation:

In the summer of 1967, U.S. Air Force officer Charles Schisler was on radar duty at Clear Air Force Base in Alaska when he noticed a fluctuating radio source. The source appeared over the course of several days, and Schisler noticed that its position coincided with the Crab Nebula. However, the findings weren't published by the Air Force at the time, and the discovery went unrealized until 2007. Astronomers in Puerto Rico discovered the same pulsing radio source. Determined to be a pulsar, the object is a rapidly-rotating, town-sized star that flashes about 30 times a second. Known as NP0532, or the Crab Pulsar,

Answer:

The correct answer will be B.(Can cause cancers)

Explanation:

Somatic mutations are mutations present or found in the somatic cells or non-germ-line cells.

since these mutations are present in the somatic cells and not in the germ cells so they cannot be passed on to the progeny.

But these mutations in the somatic cells can cause  tumor which can lead to cancer. This happens if the gene causing cancer for e.g- Proto-oncogene or tumor suppressor gene is involved in cell division is mutated. So, the mutated gene is passed on to the daughter cells during cell division and shows uncontrolled differentiation of cells causing cancer.

Thus, option B is correct.

1.) it provides oxygen for humans and carbon dioxide for plants

2.) it keeps the earth warmer than it would be without the atmosphere

3.) it protects us from radiation and meteoriods

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Answer:

protects us from radiation, keeps earths gasses on earth, keeps the earth pressurized

Explanation:

you misspelled does, "dose" is the amount of something taken in like medicine .

Sample Response:

The molecule is being moved from an area of lower concentration to an area of higher concentration.

In the given case, most probably the top layer is of oil.  

As oil is not soluble in water, it will float on the top of the water surface, in the given case it is the beaker. The oil will always float on top of the water, as it is less dense in comparison to water. The water and oil do not mix as the molecules of water are more fascinated with each other than in comparison to the molecules of oil.  

As water is polar and oil is nonpolar, their molecules are not attracted to each other.  

The answer is 300 joules of energy.

An energy pyramid is a presentation of the trophic levels in an ecosystem. Energy from the sun is transferred through the ecosystem by passing through various trophic levels. Roughly 10% of the energy is transferred from one trophic level to the next, thus preventing a large number of trophic levels.

Answer:

300 KJ

Explanation:

Edge 2020

In Model 1, there are two distinct types of molecules represented: the 'H' signifies a single Hydrogen atom and 'H₂' signifies a Hydrogen molecule composed of two hydrogen atoms.

Based on the information given in Model 1 two types of molecules are shown represented by H and H₂. The term 'H' stands for a single Hydrogen atom, while 'H₂' represents a molecule of Hydrogen, consisting of two Hydrogen atoms bonded together. Therefore, although there are different quantities of each (i.e., one H atom, two H atoms one H₂ molecule, two H₂ molecules) they only represent two distinct types of molecules.

A molecular formula uses chemical symbols and subscripts to indicate the exact numbers of different atoms in a molecule or compound. In this instance H and H₂ are the molecular formulas. Additionally, Avogadro's number 6.022 x 10²³, is the number of entities present in 1 mole of a substance, which is crucial when dealing with very large numbers of atoms or molecules.

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The answer is ATP and NADPH (c)

ATP and NADPH are the end products of photosynthesis, storing the energy produced by light-dependent reactions.

In photosynthesis, the end products of the transformation of light energy into chemical energy are ATP and NADPH. These molecules store the energy produced by the light-dependent reactions and are then used in the light-independent reactions to build sugar molecules. ATP and NADPH are forms of chemical energy that play a crucial role in photosynthesis.

the negative population growth is mainly due to a very low birth rate (there are around 8 births per 1,000 Japanese women) and an even lower rate of immigration to the country. Like many highly industrialized countries, Japan's older population is growing at a higher rate than other age groups in the country.

Answer:

increasing faster in some countries than in others.

Major parts of the animal cell:  

Nucleus- controls the cell's activities and contains all the genetic material  

Nucleolus- is involved in the synthesis of ribosomal RNA. It is a dark body inside the nucleus  

Nuclear membrane- keeps DNA inside the nucleus but allows mRNA and proteins through. It is a double membrane with large pores  

Golgi Complex- store and package cellular secretions for export out of the cell (usually through the use of vacuoles). Salivary, oil, and digestive glands have very active golgi bodies.  

Rough Endoplasmic Reticulum-is a series of long canals running throughout the cell with ribosomes attached. It transports proteins to the golgi bodies for packaging.  

Smooth Endoplasmic Reticulum- is a series of long canals running throughout the cell. It detoxifies the cell and converts foodstuffs.  

Centrioles- anchor spindle fibers during cell division. They are composed of microtubules and are only found in animal cells.  

Mitochondria- produce most of the cell's energy. They are composed of two membranes (an outer and a folded inner membrane) and are common in muscle cells  

Ribosomes and Free Ribosomes- assemble proteins from RNA codes. They are found free-floating in the cytoplasm throughout the cell or attached to the endoplasmic reticulum  

Lysosomes-digest and remove worn out cell organelles. In essence, they are vacuoles filled with digestive enzymes.

As the nucleus of an animal cell, I am thrilled to mentor a new organelle joining our cell community. Our cell type is specialized for various functions within the animal body.

Let's embark on a fascinating tour of our animal cell and explore the major parts and their functions!

Nucleus: I am the control center of the cell. My primary job is to store genetic information in the form of DNA and govern all cellular activities. I also coordinate the replication and transcription of DNA to maintain the cell's functions.

Cell Membrane: Look around, and you'll see the cell membrane surrounding us. It's like a security gate, controlling what goes in and out of the cell. It's crucial for maintaining cell integrity and communication with the outside environment.

Cytoplasm: This gel-like substance fills the cell, supporting various organelles and providing a medium for chemical reactions to occur. It's where many metabolic processes take place.

Mitochondria: Over there, those bean-shaped structures are the mitochondria. They are the powerhouses of the cell, responsible for producing ATP, the cell's energy currency, through cellular respiration.

Endoplasmic Reticulum: A network of membranes makes up the ER. There are two varieties: rough and smooth. The smooth ER aids in lipid metabolism and detoxification, whereas the rough ER contributes to protein synthesis.

Know more about nucleus here

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Answers:

Biodiversity, is the diversity of life. Usually within a certain environment, within a certain time frame.

There is diversity on the genetic level within populations, diversity within ecosystems among the species that inhabit them, and even diversity among ecosystems.

Another example might be the diversity of landscape, moisture, nutrients, sunlight, soil and vegetation development in certain areas of the world which will support the more diverse set of species.

Biodiversity refers to the number and variety of organisms found within a specified geographic region. Prime examples include tropical rainforests, coral reefs, grassland ecosystems, and even our own backyards.

Biodiversity is a term used to describe the enormous variety of life on Earth. It can be used more specifically to refer to all of the species in one region or ecosystem. For example, the tropical rainforests such as the Amazon, are known for being the most biodiverse regions on Earth, hosting a vast array of different species. Coral reefs like the Great Barrier Reef, are also exceptional examples of biodiversity. They host a multitude of different species, each with a unique role in the ecosystem. Another example of significant biodiversity would be grassland ecosystems such as the African Savannah, which support a wide variety of different animal species, from herbivores like zebras and gazelles, to top predators like lions and hyenas. Even in and around your own home– a urban area or a rural countryside, you may observe a high degree of biodiversity among plants, insects and birds.

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Trash is unsanitary and can attract pests it is important that trash is taken out to the dumpster otherwise it can cause serious infection in the individuals of a society.

Garbage pollution is the main reason for various bacterial diseases. Gastrointestinal, stomach pain, vomiting and diarrhea, cholera, typhoid, malaria skin diseases and respiratory allergies are the diseases which are caused by the garbage.

The smoke from the burning garbage not only poisons the air, it also increases the spread of diseases. Recent research has provided information about emission of toxic gases like carbon dioxide and carbon monoxide due to the burning of waste.

Answer: Decreased habitat for polar marine animals

Explanation:

Global climate change is a worldwide concern this is occurring due to global warming. The global warming is directly relating to the melting of the ice of the glaciers in the polar regions. This can be directly related to the loss of habitat, change in temperature, and severe change in the weather conditions. Marine mammals such as seals, polar bears, walruses may suffer for habitat loss in future due to the global climate change.

Global climate change impacts marine life by causing a decreased habitat for polar marine animals, as a result of warming oceans and the melting of polar ice caps. It also leads to ocean acidification and deoxygenation, affecting species' health and survival.

Global climate change most directly impacts marine life by leading to a decreased habitat for polar marine animals. The warming of the oceans and the melting of polar ice caps reduce sea ice coverage, which is crucial for the survival of species like polar bears, who rely on them to hunt seals. The loss of ice also affects numerous other species adapted to arctic conditions. Additionally, a rise in sea levels due to glacial melt and the expansion of warmer water can inundate coastal habitats, leading to a reduction in habitat size and potentially causing some islands to disappear entirely. This habitat loss has significant effects on marine life and can contribute to declines in population numbers for certain species.

Furthermore, climate changes impact marine ecosystems through ocean acidification and deoxygenation, which threaten the health and reproduction of marine species. Marine organisms have evolved in a relatively stable environment, which means they are particularly vulnerable to these rapid environmental changes. The shifting climate can cause species to adjust their ranges, reduce biodiversity, and disrupt critical interactions within the marine ecosystem.

Answer:

The correct answer would be B) the flow of water through the body of a sponge.

Sponges are multi-cellular organisms which are devoid of organ systems like digestive system, nervous system, circulatory system et cetera.

They have a unique feeding system in which they keep constant water flow through their bodies. They obtain food and oxygen and remove waste through this water movement.

The movement of water throughout the sponge is unidirectional in nature. It enters the sponge body through ostia and exit from the osculum.

As the water is pumped out, the cells present in the walls filter out the food present in the water.

Answer:

Answer:

The correct answer would be B) the flow of water through the body of a sponge.

Sponges are multi-cellular organisms which are devoid of organ systems like digestive system, nervous system, circulatory system et cetera.

They have a unique feeding system in which they keep constant water flow through their bodies. They obtain food and oxygen and remove waste through this water movement.

The movement of water throughout the sponge is unidirectional in nature. It enters the sponge body through ostia and exit from the osculum.

As the water is pumped out, the cells present in the walls filter out the food present in the water.

Explanation:

The MC1R gene gives directions for producing a protein known as the melanocortin 1 receptor. This receptor performs an essential function in normal pigmentation. The receptor is mainly situated on the melanocytes surface that are unique cells, which generate a pigment known as melanin.  

Melanin is generated by the melanocytes located in the basal layer of the epidermis. The MC1R monitors the production of both pheomelanin and eumelanin.  

The MC1R gene most prevalent among people of African ancestry produces eumelanin, a type of melanin. This melanin is responsible for their darker skin pigmentation, especially with UV exposure which stimulates melanocyte's production of more melanin.

The type of melanin produced by the version of the MC1R gene most prevalent among people of African ancestry is eumelanin. Melanin occurs in two forms: eumelanin which is black or brown and pheomelanin which provides a red color. People of African ancestry produce more melanin, specifically eumelanin, which provides a darker pigmentation. The MC1R gene plays an essential role in the synthesis of melanosomes, causing skin pigmentation.

For instance, when skin is exposed to the Ultraviolet (UV) rays from the sun, the UV rays stimulate keratinocytes to secrete chemicals which in turn stimulate melanocytes. The melanocytes increase the production of melanin which results in the darkening of the skin, also known as sun tan.

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He chose to study birds, plants, and animals. Mostly 2 types of Finches.

Answer:

C and D or it might just be C

Explanation:

Final answer:

An increase in grass population after wet years positively affects herbivores by providing more food, which may increase net primary productivity and benefit the entire ecosystem. The exact impact on animal populations will depend on various environmental factors, including potential disturbances.

Explanation:

When the grass population increases after two wet years, this abundance of food is likely to positively affect animal populations, specifically herbivores. Herbivores that had previously inhabited the area or similar species may return to take advantage of the increased food supply. This, in turn, can increase the net primary productivity, as a thriving grass population supports a chain of consumers, eventually affecting the entire ecosystem. Predators may also benefit indirectly from the increase in herbivore populations. As the herbivores feed on the grass, they convert the energy from the plants into biomass that fuels the growth of carnivorous species.

However, the exact impact on animal populations can vary and may depend on other factors such as availability of water sources, presence of predators, and the potential for overgrazing. If the conditions remain favorable, the grasslands can support a diverse and flourishing community of organisms, contributing to greater biodiversity. On the other hand, disturbances like fires may lead to a decrease in habitat complexity and a corresponding decline in mammal diversity, as described by Bond and Archibald (2003).

C The salt Would dry out the cell

The question that you have asked is false

The car traveling 8 m/s. Good luck.

Practices to protect microscope from falling:

Answer:

(tRNA) molecules carry amino acids to the ribosomes during protein synthesis.

Explanation:

Messenger RNA (mRNA) molecules carry the coding sequences for protein synthesis and are called  transcripts; ribosomal RNA (rRNA) molecules form the core of a cell's ribosomes (the structures in which  protein synthesis takes place); and transfer RNA (tRNA) molecules carry amino acids to the ribosomes  during protein synthesis.

Answer:

amino acid.

Explanation:

During the process of protein synthesis, each tRNA carries one amino acid.

Carbon. Good luck!!!!!

Final answer:

The general structure of an amino acid includes an alpha carbon with four different components attached: an amino group, a carboxyl group, a hydrogen atom, and a variable R group, which defines the type of amino acid.

Explanation:

The general structure of an amino acid involves several key components around the central alpha (α) carbon: an amino group (-NH₂), which under physiological pH conditions usually becomes ionized to -NH₃⁺; a carboxyl group (-COOH), which ionizes to -COO⁻; a single hydrogen atom; and a distinctive side chain known as the R group. This R group is what makes each of the 20 standard amino acids unique, affecting their chemical properties such as size, polarity, and pH. These properties, in turn, play a critical role in determining the protein's final structure and function.