Kingdom animalia includes a major phylum known as chordata, which includes the sub-phylum vertebrata. This includes lions like the ones shown above. The remaining taxonomic levels for lions is: Mammalia, Carnivora, Felidae, Panthera, leo. For the lion, Felidae is the name given to which taxonomic level?

Final answer:

Viruses require a host cell to conduct replication, as they cannot reproduce on their own due to the lack of essential components and metabolic machinery. They use the host cell's resources to produce viral particles and exhibit specificity in infecting cells that possess the required viral receptors.

Explanation:

Viruses do not have the capability to reproduce on their own; they need a host cell to facilitate the process known as replication. Viruses are not considered living organisms since they lack essential components like a plasma membrane, cytoplasm, and ribosomes. Unlike cellular life forms, they cannot perform metabolic activities or maintain homeostasis independently. Therefore, they must infect a living host, which provides the necessary cellular machinery and metabolism for the virus to produce new copies of itself.

Once inside the host cell, a virus commandeers the host's ribosomes, enzymes, ATP, and other resources to produce viral particles. Viruses show specificity in the cells they can infect, which is often determined by the presence of specific viral receptors on the surface of the host cell. This specificity depends on the host's metabolic processes and gene expression, which ensure the necessary substances for replication are available.

The correct answer is option C, Scientific theories are often modified , but they are not usually discarded

Democritius claimed that atom is made of simple parts (400 BC)

Joseph Thompson in 1897, discovered electrons. He didn't violated the facts of Democritius but just strengthened the facts with further discovery.

While in the next stage Neil's Bohr, Further strengthened the fact of of Thompson by clearly defining the placement of electron and proton.

Answer:

Aeration

Explanation:

Answer

A subduction zone is the largest wreck scene on Earth. These lines indicate the crash within two of the planet's tectonic plates. The plates are pieces of crust that slowly move across the planet's cover over millions of years. Where two tectonic plates meet, if one or both of the plates are oceanic lithosphere, a subduction zone will form. An oceanic plate will soak back into the mantle. Remember, oceanic plates are made from mantle material at midocean ranges.

Subduction zones form at convergent plate boundaries, particularly where an oceanic plate meets a continental plate. They are areas of high seismic and volcanic activity. Examples include the Marianas Trench and the Chile-Peru trench.

A subduction zone is most likely to form at convergent plate boundaries, specifically where an oceanic plate meets a continental plate. In this scenario, the denser oceanic plate is forced under the lighter continental plate, creating a subduction zone. Subduction zones are sites of high seismic and volcanic activity. Notable examples include the >Marianas Trench in the western Pacific Ocean and the Chile-Peru trench in the eastern Pacific Ocean.

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Answer: True

Explanation: During M phase, cell division takes place and two daughter cells are formed. But the size of these daughter cells is almost half the size of the mother cell. During G1 phase, the doubling of size and cell content take place. The size of the daughter cells increase to the size of the normal cell.

The central dogma of molecular biology describes the process by which genetic information flows from DNA to RNA to proteins. It involves transcription and translation. Understanding this process is key to understanding how cells function and regulate activities.

The central dogma of molecular biology explains the flow of genetic information within a biological system. First articulated by Francis Crick, it states that genetic information is stored in DNA, which is then transcribed into RNA. This RNA is subsequently translated into proteins, which perform most cellular functions.

This fundamental principle involves two main processes:

Understanding the central dogma is crucial as it encompasses how genes encoded in DNA result in functional proteins, allowing for cellular activities and regulation.

The best between analog and digital signals to know which is more reliable for encoding and transmitting information is digital signals

Digitized signals are known to be signals that are often sent as wave pulses and as such they are said to be very reliable way to encode and transmit information when compared to analog signals.

Note also that Digital signals are made up of patterns that are created as a result of  sampling of a stream of continuous data at consistent intervals and they are sent or transmitted as pulses.

Therefore, The best between analog and digital signals to know which is more reliable for encoding and transmitting information is digital signals

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Digital signals are often more reliable than analog signals due to their resistance to noise, capacity for encryption, data compression capabilities, and the ability to regenerate signals without loss of quality.

Comparing Analog and Digital Signals

When determining which is more reliable for encoding and transmitting information, both analog and digital signals have distinct characteristics.

Signal Shape

Analog signals are continuously variable, representing data in a wave-like form. Digital signals consist of binary ones and zeros, creating a discrete or step-like waveform.

Numerical Values for Signal Measurements

Analog signals use a decimal numbering system, while digital signals rely on binary numeric systems (ones and zeros).

Amount of Data Transmitted

Digital data, such as those used in WiFi and Bluetooth, often allows the transmission of more data due to high-frequency carrier waves and data compression techniques.

Energy Requirements

Both analog and digital signals require energy to transmit, with a minimum energy per bit needed for wireless reception. Digital systems tend to be more energy-efficient due to better compression and transmission techniques.

Privacy and Security

The ability to encrypt digital data provides a high level of security and privacy not as easily achieved with analog transmissions.

Clarity of Signal

Clarity in digital signals is often superior because they are less susceptible to noise and can regenerate without the loss of quality.

Digital signals generally provide greater reliability for encoding and transmitting information than analog signals due to advantages in noise resistance, data compression, and encryption potential.

Answer: D. Performing and investigation

Explanation:

A scientific practice involves the process of collection of data, performing the experiment and conducting the investigation, communicating results and providing explanation for the results.

The given situation is the example of the performing and investigation as it involves the detail experimental process which is the part of the scientific practice.     

Answer:

left atrium

Explanation:

Answer:A new substance is produced.

Explanation:

Farmers might choose to plow leguminous plant roots back into the soil and leave the area fallow to naturally replenish the soil's nutrients. This practice uses rhizobia, bacteria that fix nitrogen from the atmosphere into a usable form for plants. This alternative to synthetic fertilizers aids soil fertility and promotes sustainable farming.

To maintain the fertility of farming lands without a constant use of fertilizers, farmers can resort to an alternative method, such as plowing leguminous plant roots back into the soil and leaving the area fallow for a season. Leguminous plants interact with soil bacteria, known as rhizobia, in a symbiotic relationship to influence nitrogen fixation. This is the transformation of atmospheric nitrogen into ammonia, a compound that plants can easily utilize. The incorporation of legume roots into soil not only provides a natural and sustainable supply of nitrogen but it also improves the overall soil fertility due to the nitrogen left behind by the root system.

Shifting toward this practice of extensive or shifting cultivation involving various plots of land serves both the environment and the farmer. For one, it minimizes the use of chemicals and thus promotes the sustainability of agricultural practices. Moreover, leaving a plot fallow for a certain period allows the soil to regenerate and accumulate fresh nutrients naturally. Furthermore, turning over the soil and leaving the old pant roots enhances the nutrient content of the topsoil, making it more fertile for the next planting season.

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Answer to question no. 1:

A forest is at its young stage when it’s hardly touched by human or any external or harmful intervention, leaving it as natural as it is. That means it is filled with healthy vegetation, saplings everywhere, mature trees, vines and shrubs.

In this very rich forest environment, many species of animals thrive.  Most of them would be endangered species of migratory songbirds, mammals like white-tailed deers or rare insects.

Answer to question no. 2:

Crocodiles are able to adapt in most areas and can live for a long period of time due to several factors:

1)     They are cold-blooded.  A cold-blooded animal would have very slow metabolism so they can live without food for many months.  One big meal can keep them full for a long time.

2)     They can survive both on land and water.

3)     Just like mammals, the crocodile’s heart has four chambers that allows them to control their body temperature at a constant level. This is why they are able to adapt in many places.

4)     Crocodiles have strong senses which makes them good hunters / predators

a.     Sense of sight: they can see underwater and have night vision

b.     Good sense of smell

c.      Sensory buds in their jaws that help them detect vibrations and movements

Answer: The correct answer is-

To take in minerals form soil.

Roots are the significant organs of vascular plants that are located below the surface of soil.

They have specialized adaptation in their structures that enable them to absorb mineral ions ( such as sodium, potassium, phosphates, nitrates, magnesium that are very essential for plant growth) and water from the ground.

For instance, some plants possess fibrous roots that increase the surface area for absorption of minerals and other plants have tap root system ( that penetrates deep down to access water reservoirs) with lateral branches.

We can differentiate between two algae type that contain similar pigments by paper chromatography.

Thus, by chromatography we can find out which pigment is present in the species and easily find out the species of the algae.

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Clumped dispersion provides benefits such as A) increased protection, B) access to food, and C) mating possibilities, but contrary to decreasing intraspecies competition, it often increases it due to the concentration of individuals in resource-rich areas.

Organisms choose to live in a clumped dispersion for several reasons; however, one reason that is not a benefit of clumped dispersion is that it decreases intraspecies competition (D). In a clumped dispersion pattern, organisms are clustered together in groups, often reflecting a patchy distribution of resources in their environment or social behaviors. Reasons for choosing clumped dispersion include:

In contrast, clumped dispersion does not decrease intraspecies competition; in fact, it can sometimes increase it since individuals are concentrated in specific areas where the resources are located.

the answer is c - planets

Answer:

Planets

Explanation: