are viruses and bacteria single celled organisms?

The response to a second excitatory postsynaptic potential (EPSP) not generating an action potential can be explained by the temporal summation of synaptic inputs.

Temporal summation refers to the cumulative effect of multiple EPSPs occurring in rapid succession at the same synapse.

When a second EPSP arrives shortly after the first one, the depolarization produced by the second EPSP can summate with the remaining depolarization from the first EPSP. If the combined depolarization exceeds the threshold for generating an action potential, an action potential will be generated.

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Answer:

Lung

Explanation:

The null hypothesis Upper H0: μ1 = μ2 is equivalent to the null hypothesis Upper H0: μ1 − μ2 = 0 because they are equivalent through algebraic manipulation (Option A).

A null hypothesis is a hypothesis that is tested for possible rejection under the assumption that it is true. It is generally denoted by H0. A null hypothesis usually states that the two populations under consideration are the same or equal.

Algebraic manipulation is the technique of manipulating algebraic expressions to simplify or prove a mathematical relationship. The null hypothesis Upper H0: μ1 = μ2 can be transformed by subtracting one population mean from the other to get H0: μ1 − μ2 = 0. So the null hypothesis Upper H0: μ1 = μ2 is equivalent to the null hypothesis Upper H0: μ1 − μ2 = 0.

Thus, the correct option is A.

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The maintenance of internal conditions of an organism within a certain boundary range is called homeostasis. Homeostasis is defined as the state of steady internal physical and chemical conditions maintained by living systems. It is the main answer.

:Living things maintain internal conditions within a certain boundary range in order to ensure that their cells are functioning properly. This process is known as homeostasis. Homeostasis refers to the ability of an organism to maintain a stable internal environment in response to changes in the external environment.]

Temperature, pH, and concentration of various substances are some examples of internal conditions that must be kept within a certain range.In order to maintain homeostasis, living organisms must be able to sense changes in their environment and respond to those changes accordingly. They must also be able to regulate their internal processes to maintain the necessary balance. This process is essential for the survival of living organisms.

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The 2 practical are :

Figuring out a food's nutritional worth. Understanding food sensitivities might serve as another illustration.

Drug development, food safety testing, environmental monitoring, and disease diagnosis all depend on the analysis of biomolecules.

Because they enable organisms to grow, endure, and reproduce, biomolecules are necessary for life. By interacting with one another, they play a role in the development of organisms, from simple cells to complex living things like people. Their varied shapes and structures enable a variety of functions.

Cells and organisms may malfunction as a result of any changes in the concentration of particular biomolecules. To ensure the health of the cells and live creature, it is essential to measure and monitor the concentration of specific biomolecules in a living system accurately.

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Answer:article of confederation

Explanation:

Because I’m smart

Answer:

If the disorder has an autosomal recessive inheritance pattern, according to the family tree both parents do not have the disorder, but are carriers.

Explanation:

When a disorder or disease is recessive it requires two alleles with the disorder to manifest. In this case, according to the pedigree, both parents must be heterozygous carriers and not present the disorder.

Parents

♂ Dd

♀ Dd

Both without disorder but presenting the altered gene, which makes them carriers.

Alleles      D      d

D             DD    Dd

d              Dd    dd

The offspring of these parents have a 50% chance of being carriers without the disorder, 25% non-carriers, and 25% with the disorder.

In the event that either parent was DD, there would be a 50% chance of carriers without the disorder and no chance of offspring with the disorder, which has a recessive inheritance pattern.

Answer:

cation: sodium(Na⁺)

anion: sulfate(SO₄²⁻)

Explanation:

hope this helps pls rate and mark as brainliest.

Answer:

cation: calcium, potassium

anion: chloride, iodine

The main answer to your question is option 2: Angiosperms.

Angiosperms, also known as flowering plants, are the most abundant and species-rich plant group in terrestrial biomes. They have evolved a wide variety of adaptations to survive in different environments and are found in nearly all terrestrial habitats.

This group includes trees, shrubs, herbs, and grasses, and they play a critical role in ecosystem function by providing food, shelter, and oxygen to other organisms.

Summary: Angiosperms are the most abundant and diverse group of plants in terrestrial biomes. They have evolved adaptations to survive in various environments and play a crucial role in ecosystem function.

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The anomaly seen in the evolution of skin color proves that skin color is affected by other environmental factors.

The reason people near the equator have darker pigmentation is to protect their skin from harmful UV radiation that can lead to skin cancer.

Melanin is produced by melanocytes, which are skin-resident cells. The pigment melanin determines skin color.

Melanocytes can develop abnormally and result in an excessive amount of skin color darkening under certain circumstances. Prior inflammation is the cause of the concentric rings of hyperpigmented pigmentation over the tibia.

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Answer:

Take over

Explanation:

Nonnative species generally come over to a new area and don't have any natural predators. When this happens, they overpopulate and push out native species. This happens in plants, fish, insects, and mammals. Nonnative insects can also carry diseases (mosquitos with malaria and dengue fever)

The process of continued divergence in this scenario is called reinforcement.

Natural selection works to prevent hybridization between divergent populations through a process known as reinforcement, which leads to the emergence of interbreeding barriers and greater population divergence. In this instance, the environmental change has made it possible for the two previously separated populations to interact once more. However, the hybrid offspring are less likely to survive, which encourages selection against hybridization and the development of novel mating rituals, leading to the populations' continued divergence.

Understanding population dynamics necessitates being aware of the many influences that dispersal, productivity, and survival have on population growth. This is crucial for the preservation of tiny, recently established populations since stochastic births and deaths could have a negative impact on their growth or possibly cause them to go extinct.

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The correct term for a tick that feeds on a rabbit during its larval and nymphal stages, but feeds on a cow after it becomes an adult is two hosted tick.
The organism that benefits is called the parasite, while the organism that is harmed is called the host.  Because the parasite lives and gets food from its host, the death of the host will bring death to the parasite itself.
Types of Parasitism Symbiosis
Parasites that live on the host in parasitism symbiosis are divided into two types of parasitism, namely ectoparasitism and endoparasitism.  These two types of parasitism symbiosis have different lives.
Ectoparasites are parasites that live attached to their host's body and take nutrients from outside the human body.  Endoparasites are parasites that live inside their host's body.
Example: Fleas and Animals
Fleas are small organisms that get food by sucking the blood of other living things they live in, including cats, dogs, goats, buffalo.
The advantage of fleas is getting shelter and food while animals infested with fleas become uncomfortable and itchy
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Answer:

The second question If the wolf were removed in this ecosystem the population of animals that wolfs eat like rodents will increase in this ecosystem. a food web means collection of food chains

Answer:

C. The Benthic Zone

Explanation:

It is home to lots of species of animals in the zone  

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The row that correctly completes the blanks above is row (a) 2n-4; 2n-4. The ploidy of the diagram above can best be described as diploid. This is because the cells in the diagram contain two sets of chromosomes.

The ploidy of the diagram above can best be described as diploid. This is because the cells in the diagram contain two sets of chromosomes. The row below that correctly completes the blanks above is row (a) 2n-4; 2n-4. To explain further, the diagram shows a cell undergoing meiosis. Meiosis is a type of cell division that occurs in sexually reproducing organisms. During meiosis, a diploid cell divides twice to produce four haploid cells. In the diagram, the diploid cell has two sets of chromosomes (2n).

In the first division of meiosis, the cell separates its homologous chromosomes, reducing the chromosome number by half. This produces two haploid cells, each with one set of chromosomes (n). However, the cell does not split completely and enters into the second division of meiosis, where the sister chromatids are separated. This results in four haploid cells. In the diagram, the final result is four haploid cells with n-4 chromosomes each. Therefore, the row that correctly completes the blanks above is row (a) 2n-4; 2n-4.

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If you investigated cells from a lab mouse with 40 chromosomes you would find a total of 80 sister chromatids after the S phase stage.

The thread-like chromosomes that convey the genetic data from cell to cell are formed of protein and a single DNA strand. Chromosomes are found in the nucleus of cells in both animals and plants including humans.

Long segments of DNA are transported by chromosomes, which are organelles that can be found within the nucleus of cells. The substance that houses genes is called DNA. It serves as the base for the human body. Additionally, proteins found in chromosomes aid in the proper structure of DNA.

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The oceans store more carbon than the atmosphere. Thus, the correct option is C.

An atmosphere may be defined as an area that is surrounded by layers of gases across a planet or other celestial body.

The oceans are a gigantic carbon sink, and the domain of the positive authorization of the greenhouse gas cycle is that, as the oceans become warmer, they tend to discharge more carbon dioxide disbanded in the water.

Therefore, the correct option for this question is C.

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Answer:

below

Explanation:

C. Mice would have more food but the rest of the animals would starve. This is an example of FAIR biodiversity. Sorry if this is wrong

Answer: major

Explanation:

This cell is in the metaphase phase of mitosis. In this phase, the chromosomes (dyed blue) are aligned in the center of the cell and the spindle fibers (dyed green) are connecting the chromosomes to the spindle poles.

Phases of Mitosis:

Mitosis is the process of cell division that results in two identical daughter cells. It can be divided into four distinct phases that are discussed below.

Prophase: In this phase, chromosomes condense and become visible. Chromosomes pair up to form an "X" shape, with each pair comprising a pair of sister chromatids. Cytoskeletal structures called microtubules start to form, which will eventually form the spindle apparatus. The nuclear envelope begins to disintegrate.

Metaphase: The chromosomes align at the cell's equator during this stage. The spindle apparatus and microtubules attach to the kinetochores on the chromosomes. The centrosomes migrate to opposite poles of the cell, forming the spindle's poles.

Telophase: The spindle apparatus disintegrates, and new nuclei begin to form at either end of the cell. The chromosomes relax, and their characteristic shape disappears. Cytokinesis, or the splitting of the cell into two daughter cells, begins at this stage.

Anaphase: The sister chromatids are pulled apart and drawn toward the spindle poles during this phase.

The spindle apparatus shortens as microtubules shorten, pulling the chromatids in opposite directions. As a result, each chromatid is now regarded as an individual chromosome. The cell becomes more oval-shaped as the spindle pulls the chromosomes towards the poles until they are completely separated.

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The phylum whose members possess notochord is phylum Chordata.

Chordates are animals belonging to the phylum Chordata. They represent the most advanced phylum of all animal phyla. Chordates have some basic characteristics that set them apart from other phyla. These include

These key features may not be present throughout the life history of the animals in the phylum Chordata. However, they usually have them at some point in their lives.

Chordates include

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Answer:

In the food web...

Producers:  aspen trees, cottonwood trees,  willow trees, and grasses.​

Consumers: wolf, coyotes, elk, voles,

Explanation:

Food webs depict the flow of energy and nutrients within a biological community. In communities, species or groups of organisms have special roles called niches; every species plays an important role in the community.

Some organisms are called producers or autotrophs.  Autotrophs include plants, microbes, and other species that photosynthesize, producing energy/ a food source. Here the producers, on the bottom of the web are aspen trees, cottonwood trees,  willow trees, and grasses.​

Consumers include fungi, protists, and bacteria that consume organic matter made by producers-  these are heterotrophs. Here, primary, secondary and tertiary consumers include plant-eating elk, voles along with the carnivores (wolves), and plants/ animal eating coyotes who feed on these animals

Hardwired characteristics of the brain that attempt to keep us in balance by correcting deficiencies are referred to as homeostatic mechanisms.

Homeostasis is the body's ability to maintain a stable internal environment despite external changes.

In the context of the brain, homeostatic mechanisms involve various processes that regulate physiological functions and maintain optimal levels of essential substances.

These mechanisms can include feedback loops that detect imbalances and initiate corrective actions.

For example, if there is a deficiency in a particular nutrient or hormone, the brain may activate mechanisms to increase its production, decrease its consumption, or enhance its absorption from the environment.

Homeostatic mechanisms play a crucial role in ensuring the body's overall stability and functioning, helping to maintain proper levels of various substances and promoting overall well-being.

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Answer: By protecting natural resources and using re-newable energy and eco-friendly products also fair trade

Explanation:

Answer:

42

Explanation:

If a cell has 42 pairs of chromosomes (n = 42), it has 84 chromosomes (2n = 84). At the end of mitosis, the two daughter cells will be exact copies of the original cell. Each daughter cell will have 84 chromosomes. At the end of meiosis II, each cell (i.e., gamete) would have half the original number of chromosomes, that is, 42 chromosomes.

A simple example is↓

The parent cell of 10 chromosomes will end up becoming two daughter cells that each have a copy of those 10 chromosomes.

The important fact about mitosis is that the daughter cells are identical to the parent cell. The daughter cells will have the same number of chromosomes as the parent cell.

If a cell with 42 chromosomes undergoes mitosis, the equal 42 chromosomes will each daughter cell have.

What is Mitosis?

Mitosis is a process where a single cell divides into two identical daughter cells (cell division).

Before a cell divides it undergoes DNA replication. As a cell enters mitosis, double-stranded chromosomes fuse from the replicated DNA. A cell having 42 chromosomes will have 42 double-stranded chromosomes entering mitosis. Upon completion of cell division, each daughter cell will receive 42 single-stranded chromosomes, as double-stranded chromosomes are pulled apart during mitosis.

Therefore, if a cell with 42 chromosomes undergoes mitosis, the equal 42 chromosomes will each daughter cell have.

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