Is it correct to say the evolution is JUST a theory? Is gravity JUST a theory? Defend your answer​

Answer:

Explanation: Plant cells that are being placed first in a medium for the purpose of the tissue culture are differentiated cells. Pluripotent cells or cells that are able to develop into all the specialized cell types and structures of plants are being produced by undifferentiated cells.

Answer:

Evidence for common ancestry can be found in the fossil record, from comparative anatomy and embryology, from the similarities of cellular processes and structures, and from comparisons of DNA sequences between species.Explanation:

The most significant predictor of childhood obesity is maternal obesity.

Numerous studies have shown that maternal obesity is strongly associated with an increased risk of childhood obesity. Maternal obesity during pregnancy can have long-lasting effects on the developing fetus, including alterations in metabolism, hormonal imbalances, and changes in the developing brain.

These factors can contribute to an increased susceptibility to obesity in childhood and later in life.

Maternal obesity can influence the intrauterine environment, leading to an overexposure of the fetus to excessive nutrients and adipokines, such as leptin, insulin, and inflammatory cytokines. This can disrupt the normal development of metabolic pathways and regulatory mechanisms involved in energy balance and body weight regulation.

Additionally, maternal obesity can also impact early feeding practices, such as breastfeeding initiation and duration, as well as the introduction of solid foods. These factors can further contribute to the development of unhealthy eating habits and an increased risk of childhood obesity.

It is important to address maternal obesity as part of comprehensive strategies to prevent and manage childhood obesity. This may include interventions targeting preconception and prenatal care, promoting healthy lifestyles and weight management, and providing support for breastfeeding and healthy infant feeding practices.

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Answer:

It processes the environment and sends out signals. It controls movement and provides structure. I hope this helps! :)

Explanation:

Ordovician end (444 million years ago; mya), Devonian, late (360 mya), Final Permian (250 mya), People frequently confuse the end of the Triassic period (200 mya) for the extinction of the dinosaurs.

End of the Cretaceous (65 million years ago), the dinosaur extinction catastrophe. The primary reason for contemporary extinctions is habitat destruction.

Permian and the beginning of the Triassic periods, some 250 million years ago, Earth went through its worst environmental catastrophe ever.

The crater's diameter and depth are estimated to be 180 kilometers (110 miles) and 12 miles.

Therefore, around 252 million years ago, the end of the Permian epoch was marked by the greatest extinction in Earth's history.

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In a nerve cell, the activators that would be present to ensure transcription of genes 1, 2, and 4, which code for nerve-specific proteins, would likely be transcription factors that are specific to nerve cells.

These activators may include proteins such as neurogenin, neuroD, or Nurr1, which are known to regulate the expression of genes that are important for nerve cell differentiation and function. These transcription factors bind to specific DNA sequences within the promoters of the target genes, thereby recruiting the RNA polymerase complex and initiating transcription. In addition to these activators, other signaling pathways and epigenetic modifications may also play a role in regulating the expression of these genes in nerve cells.

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Answer:

Biology is a branch of science that deals with living organisms and their vital processes. Biology encompasses diverse fields, including botany, conservation, ecology, evolution, genetics, marine biology, medicine, microbiology, molecular biology, physiology, and zoology.

Explanation:

Knowledge of North Pacific Ocean food webs would help scientists understand the algae bloom in 2015 by providing insight into the complex interactions between different species in the region.

During an algae bloom, the rapid growth and reproduction of algae can cause changes in the food web. For example, the increase in algae can lead to an increase in zooplankton populations that feed on them, which in turn can lead to an increase in populations of larger organisms that feed on the zooplankton. However, the effects of the algae bloom can vary depending on the specific species involved and their roles in the food web.

By understanding the North Pacific Ocean food webs, scientists can identify which species are most likely to be affected by the algae bloom and how their populations may be impacted. For example, some species may benefit from the increase in food availability, while others may be negatively affected due to changes in the availability of their own food sources.

Moreover, studying food webs can help to identify potential cascading effects of an algae bloom on other components of the ecosystem. For example, changes in the abundance of a predator species can impact the abundance of its prey, which can in turn impact the abundance of other species in the food web.

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Nasal Cavity

I found the answer.

Chemical molecules for odor bind with olfactory receptors located in the Olfactory Epithelium.

In conclusion, chemical molecules for odor bind with olfactory receptors located in the Olfactory Epithelium.

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Answer:

b: Movement of glaciers over surfaces can break rocks apart.

Explanation:

Glaciers are heavier than some rocks so the mass breaks them apart like when you step on a ballon. the air rushes out some way so it is no longer under pressure :)

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Answer:

BEGINNING VOLUME-10ML

FINAL VOLUME =20ML

THEREFORE,VOLUME OF SOLID=20-10 ML

=10 ML

Any material that is discarded after its main use, or is worthless, defective, and has no use is known as Waste.

Types of waste

.Municipal waste: They include household waste, commercial waste, and demolition waste

.Hazardous waste: They includes industrial waste,

Biomedical waste eg. clinical waste.

.Special hazardous: They include nuclear/radioactive waste, explosive waste, and electronic waste (e-waste).

what is Nuclear waste?

They are wastes from radioactive materials that are very harmful to the body and environment eg. high-level nuclear waste, Transuranic nuclear, and Low-level nuclear waste.

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Polydectes, the king of Seriphos, asks Perseus to get the Gorgon's head in Medusa's head because he wants to get rid of him.

Polydectes is interested in marrying Perseus's mother, Danae, but Perseus is an obstacle to his plans. Polydectes asks for the Gorgon's head as a way of getting rid of Perseus, thinking that he will either die during the quest or fail to complete it. In either case, Polydectes would be free to pursue his own agenda without interference from Perseus. Polydectes is not afraid of the Gorgons, nor does he want to impress Danae by sending Perseus on a dangerous mission. Rather, he is cunning and manipulative, using the Gorgon's head as a means of achieving his own ends. Ultimately, Polydectes's plan fails, and Perseus returns victorious with the Gorgon's head, freeing his mother from Polydectes's grasp and securing his own place in Greek mythology as a hero.

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Answer:

a-c- e are correct answer see table and refer clearly and like me

The creation of sustainable ecosystems cannot be achieved through a single approach or solution. It requires a comprehensive and multi-faceted strategy that takes into account various factors such as the environment, economy, social structures, and cultural practices.

One of the main challenges in creating sustainable ecosystems is the need to balance human development with the preservation of natural resources. Many activities associated with economic growth, such as industrialization and urbanization, have a negative impact on the environment and can disrupt ecosystems. To create sustainable ecosystems, it is necessary to reduce our reliance on non-renewable resources and shift towards renewable sources of energy and materials. This requires significant investments in research and development, as well as changes in public policy to promote sustainable practices.


In conclusion, the creation of sustainable ecosystems is a complex and challenging task that requires a multifaceted approach. It cannot be achieved through a single solution or approach, but rather through a combination of efforts that take into account the environment, economy, social structures, and cultural practices.

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Tour of a plant cell structures that are not in animal cells are cell walls and chloroplasts.

Plant cells and animal cells are cells with a complex nucleus with a nuclear envelope consisting of two membranes. Both of these cells belong to the eukaryotic cell type.

Animal and plant cells have many of the same structures and organelles. However, there are several structures and organelles in plant cells that animal cells do not have, namely the cell wall and chloroplasts. The cell wall in young plant cells is made of pectin and in mature plant cells it is formed from cellulose which is rigid so that it gives shape to plant cells which tend to be fixed. While the outer part of plant cells is the plasma membrane which consists of phospholipids and proteins. Another structure that only exists in plants, namely chloroplasts, namely plastids that contain chlorophyll. With the help of chlorophyll, plant cells can make their own food with the help of sunlight.

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Answer:

due to their excessive numbers in tissues. ... because their developmental potential is limited to certain tissues. In plants, most differentiated cells retain. A) only a tiny fraction of their original set of genes.

Explanation:

hmm i think this is your answer

The varicella zoster virus is a herpesvirus that can remain dormant in a person for years before causing shingles.

Shingles is a viral infection that is caused by the varicella zoster virus, which is the same virus that causes chickenpox. After a person has had chickenpox, the virus can remain dormant in the nervous system for many years. When the virus reactivates, it can cause shingles, which is a painful rash that usually appears on one side of the body.

The varicella zoster virus has a single, linear, double-stranded DNA molecule and primarily affects adults. The virus is highly contagious and can be spread through direct contact with the rash or by breathing in the virus from infected individuals. Although the virus can affect anyone who has had chickenpox, it is more common in older adults and people with weakened immune systems.

The varicella zoster virus can remain dormant in the nervous system for years before causing shingles.

The virus primarily affects adults and has a single, linear, double-stranded DNA molecule. It is important to seek medical attention if you develop symptoms of shingles, as early treatment can help to prevent complications and reduce the risk of long-term effects.

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When we travel north from the equator, the intensity of Ultra violet light will decreases.

Ultraviolet (UV) radiation is defined as the type of non-ionizing radiation that is produced naturally by the Sun. There are three types of UV radiation which are as follows:

1. UVA

2.UVB

3. UVC

The intensity of the UV radiation is higher at the equator and decreases with latitude. The UV radiation intensity decreases which is the lowest at the poles.

Thus, when we travel north from the equator, the intensity of Ultra violet light will decreases.

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Answer:

the plasma membrane

Here, surface area is the area of the outside of the cell, called the plasma membrane. The volume is how much space is inside the cell.

Explanation:

Answer:

The correct answer is D.) the curved surface of Earth.

Explanation:

The intensity of sunlight on Earth is affected by the curved surface of Earth, which causes the sunlight to spread out over a larger area. As a result, the intensity of sunlight is less at any given point on Earth's surface than it would be if Earth had a flat surface. This also explains why the poles receive less sunlight than the equator, as sunlight is spread out over a larger area near the poles due to the curvature of the Earth.

Factors such as the mass of Earth, the speed of Earth, and the number of rotations of Earth do not directly affect the intensity of sunlight on Earth.

A property that is common to all microbial cells is evolution.

The term microbial cells include wide variety of micro organisms which can be bacteria, virus, fungi, algae, protist etc. The process of evolution is an important process for all the living organisms in order to survive. The evolution includes variation in genetic data that is evident in the form through mutation, transfer and reduction.

Communication between cells is common in bacteria and is a well-researched topic by scientists. The term for the process is quorum sensing and is responsible for biofilm formation, which causes problems in health and other industries. Motility and genetic exchange is not common in various organisms.

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Answer:

The impact this would have on the biodiversity of the ecosystems within the Great Barrier Reef is that knowing its takes million of years for coral reef to develop it would be devastating as a end result because many organisms and sea lifes rely on the Great Barrier Reef for survival.

Answer:

The sun is the ultimate source of life for all living beings. In photosynthesis, plants transform light energy to chemical energy. Animals are receiving nutrition from eating vegetables. The only source of energy that a cell can use is a molecule called adenosine triphosphate .

Answer:

snails move slow

Explanation:

abs

Answer:

sugary carbohydrates

Explanation:

Chlorophyll captures the sun's rays and creates sugary carbohydrates or energy during photosynthesis which allows the plant to grow.

Answer:

Four Limbs

Explanation:

Answer:

The four limbs

Explanation:

A shared derived trait involves shared characters that lineages have in common, which have evolved in the lineages leading up to a clade and that sets members of that clade apart from other individuals.

The four limbs is found in virtually all amphibians, turtles, lizards, snakes, crocodiles, birds, and mammals. It might not be seen in snakes now, but historically it is believed that ancient snakes once possessed limbs. This feature is a shared derived trait that exist among the selected clade.

The embryonic part of the brain that increases in size and complexity most significantly during the second and third month of embryonic development is the telencephalon.

The telencephalon is derived from a part of the neural tube that forms in the early stages of embryonic development. It is located at the anterior end of the neural tube and is responsible for the formation of the forebrain structures.

During the second and third month of embryonic development, the telencephalon grows rapidly in size and complexity as it expands to form the cerebral cortex, basal ganglia, and the thalamus.

The growth of the telencephalon is important to the development of the brain as it is responsible for controlling higher-order functions such as memory, learning, language, and thought. It also plays a key role in the development of the senses, including sight, smell, and hearing.

The telencephalon is an intricate part of the development of the human brain and its growth during this stage in development is essential for the formation of higher-level cognitive abilities.

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The mentioned above highlight some of the key cellular processes that can be disrupted by arsenic toxicity, extending beyond its effect on cellular respiration arsenic, a highly toxic substance, can have a profound impact on various cellular processes beyond respiration.

Here, we will explore some of the other cell processes that would be affected by arsenic toxicity.

Active Transport: Active transport is a vital process in which cells expend energy to move molecules against their concentration gradient.

Arsenic can disrupt active transport mechanisms by interfering with the function of ATP (adenosine triphosphate), the molecule that provides energy for these processes.

This disruption can impair the regulation of ions and other essential molecules within the cell, leading to disturbances in cellular homeostasis.

Diffusion: Diffusion is the passive movement of molecules from an area of higher concentration to an area of lower concentration.

Arsenic can hinder diffusion processes by directly interacting with and altering the lipid bilayer of cell membranes.

This modification can disrupt the permeability of the membrane, affecting the diffusion of both essential nutrients and waste products across the cell membrane.

Osmosis: Osmosis refers to the movement of water molecules across a selectively permeable membrane in response to concentration gradients. Arsenic can interfere with osmosis by affecting the osmotic balance within the cell.

It can disrupt the delicate balance of solutes inside and outside the cell, leading to water imbalances and potential cell swelling or shrinking, which can impact cellular functions and integrity.

Transpiration: Transpiration is the process of water movement through plants, from the roots to the leaves, and its subsequent evaporation from the leaf surface.

While arsenic's primary impact is on cellular processes in animals, if it enters plant cells, it can interfere with transpiration.

Arsenic disrupts the functioning of stomata, tiny pores on the leaf surface responsible for gas exchange and water vapor release, leading to decreased transpiration rates and negatively affecting plant growth and health.

It's important to note that arsenic can affect cells in various ways depending on the concentration and duration of exposure.

The specific impact on cellular processes may also vary among different cell types and organisms.

Nonetheless, the examples mentioned above highlight some of the key cellular processes that can be disrupted by arsenic toxicity, extending beyond its effect on cellular respiration.

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