which structure is highlighted? ureter spongy urethra prostatic urethra membranous urethra

The scenario that would result in an action potential within the postsynaptic cell are dendrites with low frequency IPSP and cell body with high frequency EPSP.

Sodium ions enter the postsynaptic cell causing it's membrane to depolarize. This depolarization by sodium ions is referrred to as excitatory postsynaptic potential (EPSP). This in turn makes the postsynaptic neuron more likely to fire an action potential. Inhibitory postsynaptic potentials (IPSPs), which result from neurotransmitter release at inhibitory synapses, hyperpolarize the presynaptic membrane.

When all of the excitatory and inhibitory inputs combine to bring the neuron's membrane potential to about -50 mV, which is referred to as the action potential threshold, action potentials—the basic units of communication between neurons—occur.

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Answer:

Hubble's law, also known as the Hubble–Lemaître law, is the observation in physical cosmology that galaxies are moving away from Earth at speeds proportional to their distance. In other words, the farther they are the faster they are moving away from Earth.

Answer:

1.  Diffusion

2. Osmosis

3. Diffusion

4. Facilitated Diffusion

5. Osmosis

6. Diffusion

Explanation:

Facilitated Diffusion- Move molecules across the cell membrane in a passive transportation with  membrane protein.

Osmosis- Move water molecules from high concentration to low concentration.

Diffusion- Evenly spread molecules from high concentration to low concentration.

1. Gases move across the room with ease without energy.

2. Water enter skin cells allowing cells to grow and wrinkle without energy.

3. Gases move with ease without energy.

4. Glucose requires energy to transfer.

5. Water leaves throat when concentration outside of throat is less that that inside the trough so water moves outwards.

6. Oxygen is uses passive diffusion does not require energy and will with ease move in and through a cell.

Answer: true

yea lol :0

Answer:

A is the answer

Explanation:

In pines, pollen is typically moved from male to female cones by wind.

The male cones produce pollen, which is released into the air and carried by the wind to the female cones. The female cones contain ovules, which are fertilized by the pollen, leading to the development of seeds. The process of pollination in pines is known as anemophily, which means that the transfer of pollen occurs through the air.

This method of pollination is common in plants that are adapted to living in environments where pollinators, such as insects or birds, may be scarce or absent. Pines are a group of trees that have evolved to survive in harsh, windy environments, and their reproductive strategy is well-suited to these conditions.

The reliance on wind for pollination also means that pine trees do not produce showy flowers or nectar to attract pollinators, as these adaptations would not be effective in their environment. Instead, they produce cones that are designed to protect and distribute their pollen, ensuring the survival of their species.

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Answer:

B

Explanation:

Answer:

Cold, salty water is dense and sinks to the bottom of the ocean while warm water is less dense and remains on the surface. ... Water gets colder with depth because cold, salty ocean water sinks to the bottom of the ocean basins below the less dense warmer water near the surface.

Explanation:

brainliest please

Answer:

A on edge

Explanation:

Most organisms' realized niches are smaller than their fundamental niches because they must adapt to existing environmental conditions and compete for resources with other species. The correct option is D)The fundamental niche of an organism is usually larger than its realized niche.

An organism's fundamental niche refers to the entire range of environmental conditions under which it can potentially survive and reproduce. This includes factors such as temperature, humidity, availability of resources, and other physical and biological variables. However, in reality, an organism's realized niche is the subset of conditions in which it actually lives and thrives. This can be due to various factors such as competition with other species, predation, and habitat availability.

The relationship between an organism's fundamental niche and its realized niche is complex and dynamic. In some cases, an organism may be able to occupy its entire fundamental niche and have no competitors or other limiting factors. However, in most cases, an organism's realized niche is smaller than its fundamental niche, as it must adapt to the existing environmental conditions and compete with other species for resources. This means that an organism's fundamental niche is usually a theoretical construct, while its realized niche is the practical reality of its existence.

Overall, the relationship between an organism's fundamental niche and its realized niche highlights the importance of understanding how species interact with their environment and with each other. By studying these interactions, we can better predict how changes in environmental conditions or species populations may affect the distribution and abundance of different organisms.

Therefore, the correct option is D)The fundamental niche of an organism is usually larger than its realized niche.

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Answer:

Most modern systems of classification are based on evolutionary relationships among organisms – that is, on the organisms' phylogeny. Classification systems based on phylogeny organize species or other groups in ways that reflect our understanding of how they evolved from their common ancestors.

:)

Answer: You use a restatement of the speech's thesis; a review of the main points discussed within the speech; and a concluding device that helps create a lasting image in audiences' minds.

Explanation:

Answer:

causing them to lose their shelter. also gave money

Explanation:

The correct pairing of neurotransmitters in the parasympathetic division of the autonomic nervous system is that both release ACH.

Acetylcholine inside the autonomic nervous system. The neurotransmitter in preganglionic sympathetic and parasympathetic neurons of the autonomic nervous system is called acetylcholine (ACh).

The heart, lungs, upper gastrointestinal tract, and sweat glands all have muscarinic acetylcholine receptors on their peripheral nerve systems.

The central and peripheral nervous systems depend on acetylcholine, a sort of chemical messenger or neurotransmitter, to function properly. It aids in learning, memory, and attention as well as the control of muscular motion and autonomic bodily processes.

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Covid-19 is a respiratory illness caused by the SARS-CoV-2 virus. The effectiveness of "herd immunity" in controlling the spread of Covid-19 is hotly debated within the scientific community due to various factors such as vaccine coverage, virus variants, and ethical considerations.

Covid-19 is a highly contagious viral disease that has caused a global pandemic. Herd immunity refers to a scenario where a significant portion of the population becomes immune to the virus, either through vaccination or prior infection, reducing its ability to spread. However, the effectiveness of achieving herd immunity for Covid-19 is debated due to several reasons. Factors like vaccine coverage and efficacy, the emergence of new virus variants, duration of immunity, and ethical concerns related to infection rates and potential harm need to be considered.

The debate surrounding the effectiveness of herd immunity for Covid-19 stems from complexities related to vaccine coverage, virus variants, immunity duration, and ethical considerations. It highlights the need for ongoing scientific research and discussions to better understand and address the challenges associated with achieving herd immunity in the context of this global pandemic.

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The sample is heated to almost the boiling point in PCR because the DNA denatures or separates. The polymerase chain reaction is carried out in a thermocycler, which enables the reaction temperature to be repeatedly altered to allow for the denaturation and annealing of DNA strands. The correct option is c.

PCR or Polymerase Chain Reaction is a molecular biology technique that is used to amplify a single copy or a few copies of a segment of DNA across several orders of magnitude, generating thousands to millions of copies of a particular DNA sequence.

The separation of the double-stranded DNA into two complementary strands that are separated is referred to as DNA denaturation or separation. When DNA is heated, hydrogen bonds that hold the two complementary strands of DNA together are disrupted, causing the strands to separate. This process is referred to as denaturation, and it usually occurs at a temperature of 95 degrees Celsius.

The PCR process has three basic steps, which are repeated for 20-40 cycles to achieve millions of copies of DNA sequences.

Step 1: Denaturation: The double-stranded DNA sample is heated to nearly boiling point, which separates the DNA strands by disrupting the hydrogen bonds between them.

Step 2: Annealing: The temperature is lowered to around 50–60°C, which allows the primers (short pieces of DNA that match the start and end of the target DNA sequence) to bind to the single-stranded DNA template at the opposite ends of the target DNA sequence.

Step 3: Extension: The temperature is raised to about 72°C, which activates Taq polymerase, a heat-stable enzyme that extends the primers by attaching new nucleotides to the 3′ end of each primer, creating new complementary DNA strands that are extended from the primers.

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Answer:

what are the choices?

If I was to answer without choices I would say clearing land can cause negative environmental impacts. An example of this is deforestation, humans cut down large amounts of trees destroying whole forests along with the wildlife living in the trees. Then these animals have nowhere to live causing mass extinction.

I hope I was able to help!!

The common cold is caused by viruses that thrive at temperatures slightly above normal body temperature, and is usually caused by coronaviruses.

It can readily be transmitted by fingers and fomites as well as respiratory aerosols. It is important to note that antibiotics are not effective in treating the common cold, as it is a viral infection. a common throat- and nose-virus illness. A common cold can be brought on by a wide variety of viruses, unlike the flu. The ailment is typically innocuous, and symptoms disappear in two weeks or less.

Runny nose, sneezing, and congestion are symptoms. Consult a doctor if you have a high fever or have serious symptoms, especially if you have children. Within two weeks, the majority of people return to normal. Home cures and over-the-counter medications can help manage symptoms.

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Answer: A. a ring of actin filaments forms at the metaphase plate. The ring contracts, forming a cleavage furrow, which divides the cell in two. In plant cells, Golgi vesicles coalesce at the former metaphase plate, forming a phragmoplast.

Explanation:

hope this helps have a great day❤️❤️❤️

Answer:

ty for helping me now ill help you

a

Explanation:

cytokensis is the physical process of cell division. It divides the cytoplasm of a parental cell into two different daughter cells.

In plants, a cell wall forms. Cytokensis occurs in mitosis and meiosis. The objective for cytokensis is to divide the parent cell into two daughter cells. So cytokensis in plants is when a cell wall forms in between the daughter cells. Plant cells have walls, so they CANNOT divide using a cleavage furrow. A cell plate forms across the cell during telophase.

In animal cells, cleavage furrow forms. This pinches the cell in half and forms two different cells.  

The fungi are more closely related to animals than to plants.

Fungi and animals don’t have chloroplasts. This means that neither fungus nor animal can do photosynthesis. Chlorophyll turns plants green and feeds plants. Fungi, on the other hand, absorb nutrients from decaying plant material via an enzyme process. Animals eat their food.

Red alga and green algae belong to the superfamily Archaeoplastida.  Green algae is the closest living relative of land plants and red algae is the nearest living relative of green algae. Red, Algae, Green Algae, and Land Plants form a clade or monophyletic group. Brown Algae and Golden Algae are not related to this group.

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Answer:

True

Explanation:

Phosphorus is the only element that is identified with nucleic acids.

Answer:

Please find the answer to the blank spaces in each statement of the attached image in CAPS.

1. All energy comes from the SUN

2. Plants, algae and some bacteria capture energy by PHOTOSYNTHESIS in their CHLOROPLAST.

3. Plants, animals, fungi, protists, and most bacteria release energy by RESPIRATION in their MITOCHONDRIA.

Note:

- Photosynthesis requires CARBON DIOXIDE (CO2) and WATER (H20) to make GLUCOSE (C6H12O6) and OXYGEN (02)

- Respiration requires GLUCOSE (C6H12O6) and OXYGEN (02) to make CARBON DIOXIDE (CO2) and WATER

Explanation:

The image in this diagram is depicting how energy flows from the ultimate source, which is the SUN to other living organisms. Plants, algae and some bacteria have the ability to capture energy from the SUN using pigments in their CHLOROPLAST in a process called PHOTOSYNTHESIS, which they use to synthesize their food. The process of photosynthesis requires CARBON DIOXIDE (CO2) and WATER (H20) to make GLUCOSE (C6H12O6) and OXYGEN (02) gas.

However, on the contrary, virtually all living organisms including: Plants, animals, fungi, protists, and most bacteria etc. release energy via an organelle called MITOCHONDRIA in a process called RESPIRATION. The process of respiration requires GLUCOSE (C6H12O6) and OXYGEN (02) to make CARBON DIOXIDE (CO2) and WATER.

Answer:

A

B

E

Explanation:

Answer:

Answers from edge :))

The option from the situation that produced the landform in this picture is: "Explosive Eruptions alternating with lava flow" (Option B). The landform in the diagram is called a volcanic mountain.

When molten rock from deep under the Earth erupts through the crust and piled up on itself, volcanic mountains arise. The Hawaiian islands were produced by submarine volcanoes, and the islands visible today are the remnant volcanic tops.

A volcano is a crack in the crust of a planet, such as Earth, that permits hot lava, volcanic ash, and gases to escape from a magma chamber under the surface. Volcanoes are most commonly located where tectonic plates are diverging or converging on Earth, and the majority are found underwater.

A volcano has the following characteristics:

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The situation in which hydroponic would be most useful will be in mountainous areas facing erosion.

Hydroponics is a farming practice in which crops are growing in artificially created solutions in special chambers. In other words, instead of planting crops on natural soils, they are planted in containers filled with solutions.

Hydroponic farming is best suited for areas with limited farmlands, where natural planting on soils is difficult.

Thus, a mountainous area facing erosion is naturally limited when it comes to farming.

Desert areas with limited rainfall can be augmented by irrigation.

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The process of evolution by natural selection depends on the existence, in every biological population of genetic variability.

Genetic Variability- The capacity of the genes present to enable a cell, organism, or population to live and reproduce is known as genetic viability.

Natural Selection- An evolutionary mechanism is natural selection. Environment-adapted organisms have a higher chance of surviving and dispersing the genes that contributed to their success. Over time, this mechanism leads to the evolution and divergence of species.

Genes- The fundamental genetic component transferred from parent to child. Genes are composed of DNA sequences and are organized sequentially at specified sites on chromosome in the cell nucleus.

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