In the freshwater marshes unit, there are several examples of humans now emulating nature.

C. control system of the body. Hope this helps.

Final answer:

The nervous system is the major control system of the body, consisting of the central and peripheral nervous systems, and coordinates voluntary and involuntary actions through electrical signals.

Explanation:

The Major System of the Body Represented by the Nervous System

The nervous system is the major control system of the body. This intricate network, which includes the central nervous system (CNS) consisting of the brain and spinal cord, and the peripheral nervous system (PNS) connecting the CNS to the rest of the body, coordinates all of the body's voluntary and involuntary actions by transmitting electrical signals to and from different parts of the body. It allows rapid responses to stimuli, processes sensory information, and sends signals to muscles, organs, or glands to trigger responses.

For example, when a child unexpectedly crosses the path of a bicycle, the cyclist's nervous system quickly processes this information, leading to immediate actions such as braking or maneuvering away from the child. Similarly, the parts of the nervous system like the somatic nervous system control voluntary movements such as walking, while the autonomic nervous system, specifically the parasympathetic division, regulates involuntary functions such as digestion.

hormons. hormones are released from glands and they all belong to the endocrine system.

Option B- Hormones are produced by the endocrine system to control how cells and organs function.

The endocrine system consists of glands that produce hormones to regulate the activity of cells or organs. These hormones regulate the body's overall growth, its metabolism and sexual development and function.

The correct answer is option A, that is, mitochondria and chloroplasts both have prokaryotic ribosomes.  

Both the chloroplasts and mitochondria are the contemporary progenies of the initial prokaryotic cells. They have vested within the primitive cells, and then have developed with them as a component of them. The hypothesis is encouraged by the fact that both the chloroplasts and mitochondria comprise their own primitive ribosomes, that is, both these organelles exhibits 70s ribosomes.  

The correct answer is the option A which is mitochondria and chloroplasts both have prokaryotic ribosomes.

Chloroplast and mitochondria are considered as bacteria which after evolution due to the process of endosymbiosis become the part of eukaryote.

A prokaryotic cell contains:

And mitochondria and chloroplast also contain all above.

Hence option A  is correct one that is they both contains prokaryotic ribosomes.

Answer:

B. ordered in a time sequence, with the oldest layers on the bottom and the youngest on top.

Explanation:

This is the right description of the way in which sedimentary rock is ordered. This is also compatible with the law of superposition. Sedimentary rock accumulates in the same order in which it is created. Therefore, the oldest layers are found at the bottom, while he newest ones are found at the top. This allows scientists to study the age of rock, and of any material that is found in these layers.

The law of superposition states that layers of sedimentary rock are ordered in a time sequence, with the oldest layers on the bottom and the youngest on top. Correct option is B.

The law of superposition is a fundamental principle in geology that states that in a sequence of undisturbed sedimentary rock layers, the oldest layer will be at the bottom, and the youngest layer will be at the top. This principle is based on the idea that in undisturbed rock layers, the deposition of new sediments occurs on top of older ones over time, creating a time sequence of rock layers with the oldest at the bottom and the youngest at the top. This principle is crucial in determining the relative ages of different rock layers and understanding the geologic history of an area.

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The scheme of modern taxonomy goes:

Life > Domain > Kingdom > Phylum > Class > Order > Family > Genus > Species

So, a PHYLUM is made of several classes.

In taxonomic categories, family is made up of several classes.

Final answer:

ATP is composed of a ribose sugar, an adenine base, and three phosphate groups. It is a high-energy molecule essential for various biological processes, and the correct structural components correspond to choice 'c' in the question.

Explanation:

An ATP molecule is composed of a ribose sugar, an adenine base, and three phosphate groups. These three parts amalgamate to form the nucleotide known as adenosine triphosphate (ATP), which plays a crucial role as an energy currency within the cell. ATP is considered a high-energy compound because of the considerable potential energy stored in the covalent bonds that link the trio of phosphate groups together. When these bonds are broken in a process called hydrolysis, a significant amount of energy is released that helps to power various cellular activities, ranging from muscle contraction to biochemical synthesis.

The correct answer to the question, which asks for the components making up an ATP molecule, is 'c. Phosphate groups, ribose sugar, adenine base.' This is the accurate structure that constitutes ATP, distinguishing it from other nucleotide molecules.

Heat stroke hypothermia

A predator pray is a relationship between two species in which one harms other.

Predator are dependent on prey.

As Canadian lynx eats snowshoe hare and hare population was found to rise and fall in a ten-year cycle, with that of the lynx following two years later.

And when hare increases the number lynx start increasing due to favorable eating condition.

Levothyroxine sodium is used in the treatment of hypothyroidism, that is, an underactive thyroid. It provides substitutes more thyroid hormone that is usually generated by the thyroid gland. The medication can also be used in the treatment of other kinds of thyroid ailments like thyroid cancer and goiters.  

However, the overdose of the drug can also exhibit some kinds of complications in the patient. Some of the signs that suggest an overdose of levothyroxine sodium are insomnia, sweating, dyspnea, rapid pulse, weight loss, and fever.  

Answer:

Insomnia, palpitations, tachycardi, sweating, nervousness, cramps and muscle weakness.

Explanation:

Levothyroxine sodium is a medicine composed of a hormone normally made by the body by the thyroid gland. This drug is prescribed for patients who have a deficiency of this hormone in the body, who are suffering from hypothyroidism. It is important for a doctor to indicate this medicine as a treat and for the patient to follow the instructions for use, avoiding overuse and overdosing. The possible symptoms of overdose that this medicine may cause are: insomnia, palpitations, tachycardi, sweating, nervousness, cramps and muscle weakness.

This  electron transport chain of photosystem II helps the chlorophyll molecules in the plant leaves to tap the energy in the light photons. This energy is used to split a water molecule into hydrogen and oxygen atoms. The hydrogen is used to reduced carbon dioxide to make carbohydrates. Therefore, Atrazine stops photosynthesis by inhibiting the capacity of the plant to harness energy from sunlight for photosynthesis.

Answer: C

Explanation:

A.

It prevents the formation of NADH and FADH2, which are needed by the light-independent reactions to fix carbon.

B.

It prevents chlorophyll from creating electrons, which are needed by the light-dependent reactions to make sugars.

C.

It prevents the formation of ATP and NADPH, which are needed by the light-independent reactions to make sugars.

D.

It prevents water from releasing oxygen, which is needed by the light-dependent reactions to fix carbon.

Answer: A. more fossil fuels will be created

Fossil fuels are fuels which are formed over millions of years from dead remains of plants and animals buried under rocks. Heat from inside the earth and pressure from rock changes the dead remains into oil, natural gas and coal. Because these fuels cannot be replenish again they are called as nonrenewable fuels.

Answer: More Fossil Fuels Will Be Created

Explanation: Just Because That's the answer ;) Have A Blessed Day

The Mercalli intensity scale refers to a seismic intensity scale used for determining the earthquake intensity. It determines the influences of an earthquake. It is different from the moment magnitude, which is generally reported for an earthquake that is a determination of the energy discharged.  

The Mercalli scale determines the influences of an earthquake on the surface of the Earth, objects of nature, humans, and made-made compositions on a scale from I to XII. It refers to a scale that quantifies earthquakes on the basis of their intensity and how much destruction they make at a specific place.  

Hence, the correct answers are options this scale rates an earthquake according to how much damage it causes, and this scale uses Roman numerals to rank the damage caused by an earthquake.

Answer:

is B

Explanation:

for the one that's single answer

A loss in crop biodiversity affect agriculture that  reduces the number of pests in a field. thus option A is correct.

Crop plants are derived from wild plants, and plant breeders frequently introduce genes from wild cousins into crop kinds to give desirable traits to the crops. This genetic variety would be lost if wild species were to become extinct.

Plants and animals are more vulnerable to pests and illnesses when there is less biodiversity, so there is option A is correct. Food security and nutrition are jeopardized by the rising loss of biodiversity for food and agriculture, which is exacerbated by our reliance on fewer and fewer species to support ourselves.

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Final answer:

A loss in crop biodiversity affects agriculture as B. It reduces a crop’s ability to develop disease resistance, making crops more susceptible to pests and diseases which could lead to agricultural crises.

Explanation:

The loss in crop biodiversity significantly affects agriculture, particularly in the aspect of disease resistance. A decrease in crop biodiversity can lead to reduced resistance to diseases. This is because having a wide range of genetic traits within crop populations offers a form of protection; when one variety is susceptible to a specific disease, others may be resistant. Consequently, the ability to develop new crop varieties is contingent on maintaining a diverse pool of genetic resources, including wild species that can be bred with cultivated varieties to introduce desirable traits such as disease resistance. Seed companies play a crucial role as they provide the majority of the crop varieties for developed countries and must continue breeding new varieties to keep pace with evolving pests. However, they have also contributed to this issue by focusing on marketing fewer varieties globally, thus decreasing biodiversity.

Furthermore, a lack of biodiversity could lead to a reliance on a smaller variety of crops, which are more vulnerable to pests and diseases potentially leading to agricultural crises or the need for increased pesticide use. Therefore, the correct answer to the question, 'How does a loss in crop biodiversity affect agriculture?' is B. It reduces a crop's ability to develop disease resistance.

6. The Sun is the prime source of energy for the species in the oceanic food chain. The producers in the oceanic food chain, that is, phytoplankton uses the energy from the sunlight to produce the organic matter from water and carbon dioxide. This develops the starting of the flow of energy via the food chain.  

7. Mitochondria the powerhouse of the cells are the organelles involved in the process of cellular respiration. Thus, the muscle cells that require lots of energy would have a lot of mitochondria.  

8. During asexual reproduction, cells can produce genetically identical offspring, whereas, during sexual reproduction, cells can produce genetically different offspring.  

The right option is; D. An increase in respiratory rate  

The activation of the sympathetic nervous system results in an increase in respiratory rate.

The sympathetic nervous system (SNS) is a part of the autonomic nervous system that induces the body's fight or flight response. The sympathetic nervous system functions through various networks of neurons and its activation results in pupil dilation, increased perspiration (sweating), decreased peristalsis (muscle contraction), increased heart rate, and increased blood pressure.

The activation of the sympathetic nervous system results in an increase in respiratory rate. So, the correct option is D.

The sympathetic nervous system is a part of the autonomous nervous system and prepares the body for the fight or flight response during any potential danger.

The sympathetic nervous system functions to produce localized adjustments (sweating), and reflex adjustments of the cardiovascular system (heart rate). It also performs a crucial function in muscle contraction.

Therefore, the activation of the sympathetic nervous system results in an increase in respiratory rate.

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An aquifer is not considered a natural carbon reservoir. Conversely, the atmosphere, fossil fuel deposits, and terrestrial biomass are key compartments where carbon is stored and participate actively in the carbon cycle.

The natural carbon reservoirs are components of the environment that store carbon and participate in the carbon cycle. Among the options provided, the aquifer is not considered a natural carbon reservoir. While aquifers can contain carbon in the form of dissolved inorganic carbon or organic material, they are not typically listed as significant reservoirs in the global carbon cycle. In contrast, the atmosphere, fossil fuel deposits, and terrestrial biomass are all key compartments where carbon is stored on Earth. These compartments partake in the transfer and transformation of carbon, hence playing a crucial role in the carbon cycle.

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Aquifer is not considered a natural carbon reservoir while atmosphere, fossil fuel deposits, and terrestrial biomass are recognized carbon reservoirs. The correct option is A.

Among the options provided, Aquifer (A) is not considered a natural carbon reservoir. Carbon reservoirs are places where carbon is stored for short or long periods of time. The other options listed - Atmosphere (B), Fossil Fuel Deposits (C), and Terrestrial Biomass (D) - are all well-recognized natural carbon reservoirs. The atmosphere contains carbon in the form of carbon dioxide. Fossil fuel deposits contain carbon that has been stored over millions of years from the remains of ancient life forms. Terrestrial biomass, composed of all the living plants and animals on land, also stores carbon, particularly through the process of photosynthesis in plants.

Answer:

C. endocrine control, because melatonin is secreted into the blood and regulates body processes

Explanation:

As mentioned in the question, melatonin is secreted by endocrine gland which is a part of human glandular or endocrine system. Endocrine system is responsible for secreting chemical messengers into the circulatory system of the humans, from where they travel to different target sites like brain.

Melatonin is also a chemical messenger which is secreted by pineal gland and travels through the blood stream to the targeted brain parts. When it reached the brain it directs it about the sleep wake cycle by causing lowered body temperature and increased drowsiness which together work in regulating sleep/wake cycle.

The endocrine system of the brain, is responsible for the regulation of melatonin secretion levels  along with the hypothalamus region which get stimulated by light.

Therefore, C is the best option.

Hope it helps!

Answer:

C. endocrine control, because melatonin is secreted into the blood and regulates body processes.

Explanation:

Melatonin is a hormone linked to the circadian cycle, ie, the way the body organizes its functions when we are awake and during sleep. The substance begins to be produced in the pineal gland as day goes on to help the body prepare for sleep. It reaches its maximum level when we are sleeping. As the sun rises and the light returns, the gland reduces the production of melatonin, which signals that it is time to wake up.

This hormone is secreted directly into the blood and regulates body processes, so we can say that melatonin is controlled by the endocrine system, which is the system responsible for producing hormones that are released into the blood and travel the body to control body processes.

since there is no answer choices the best I can do is if all the starfish were suddently eliminated from the ecosystem than what the starfish feeds on would grow tremendously in population and whatever feeds on the starfish wold drop in population

The elimination of starfish from an ecosystem could cause unchecked prey population growth, declines in biodiversity, and a potential ecosystem collapse due to their role as a keystone species.

If all of the starfish were suddenly eliminated from an ecosystem, it would likely lead to significant ecological consequences due to the starfish's role as a keystone species. Starfish often prey on species such as mussels, keeping their populations in check and allowing for greater biodiversity. Without starfish, their prey's populations could grow unchecked, monopolizing resources and outcompeting other species, potentially leading to declines in biodiversity and the eventual collapse of the ecosystem. Moreover, with less predation on species lower on the food web, there could be a cascade effect throughout the ecosystem, affecting numerous other species and ecological processes. An ecosystem without starfish could also impact human activities, such as fisheries, that depend on the balance maintained by these predators.

Your best answer is C. catalyst can reduce the amount of energy needed for a chemical reaction to take place.

Glad to help ya!! :)

Answer:

d

Explanation:

Answer:

Study island ng

Answer:

A. the tendency of a cell to maintain a stable internal environment

Homeostasis refers to the tendency of a cell to maintain a stable internal environment. The correct option is A.

Any self-regulating process, such as homeostasis, helps an organism retain stability while responding to environmental factors that are favorable for its survival. If homeostasis is effective, life goes on; if it is unsuccessful, the organism dies or suffers a catastrophe.

Homeostasis is a self-regulating process that enables an organism to retain internal stability while adapting to shifting external situations. It has emerged as the key unifying idea of physiology. The best illustration of homeostasis is the body's internal temperature.

Therefore, the correct option is A. the tendency of a cell to maintain a stable internal environment.

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