in the cell, enzymes act as what?

Answer:

A. Ancient bacteria

Explanation:

From the salt of the earth, researchers have isolated and revived a Bacillus strain, which they believe is >250 million years old. If correct, Russell Vreeland and his colleagues from West Chester University, Pennsylvania, have discovered the oldest living organism in the world.

Answer:

A. Ancient bacteria

Explanation:

Archae bacteria means ancient bacteria. So, option (A) is the correct answer.

Answer: I think it is D.

Explanation:

Bye <3

Answer:

B

Explanation: "-decomposers, producers"

Answer:

a molecule

hope you get a good grade!

A molecule is the smallest part of a chemical compound that has all the properties of that compound. So, the correct option is C.

According to the context, the word may or may not include ions that meet this requirement. A molecule is a collection of at least two atoms held together by the force of attraction known as chemical bonds.

Until parts consisting of single molecules are reached, the division of a sample of a material into progressively smaller parts does not result in a change either in its composition or its chemical properties.

One or even more atoms make up molecules. They may have the same atoms (for example, an oxygen molecule has two oxygen atoms) or different atoms if they have more than one (a water molecule has two hydrogen atoms and one oxygen atom). Biological molecules like DNA and proteins can include thousands of atoms.

Therefore, the correct option is C.

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The scenario that would most likely lead to a change in DNA that would increase genetic variation in the individual’s offspring is when a G-C base pair changes to an A-T base pair randomly in a young woman's egg cell during meiosis. The last option is correct regarding mutation.

The mutations that happen to the reproductive organs, such as the ovary of the female and the testes of the male, have a higher chance of being inherited by the next generation. Because it occurs in the ovum, this type of mutation is inheritable.

Hence, the last option is correct because it states that a change in DNA that would increase genetic variation in the individual’s offspring is when a G-C base pair changes to an A-T base pair randomly in a young woman's egg cell during meiosis.

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Answer:b

Explanation:

The main difference between these two mechanisms is that ion channels are passive, meaning that they do not require energy to open or close.

Protein-mediated facilitated diffusion, on the other hand, requires energy in the form of ATP to maintain the protein's conformation and allow for transport. Additionally, Ion channels are highly selective for specific ions and are not affected by the size and shape of the molecules, whereas facilitated diffusion is not selective and can transport any type of small molecules.

In summary, transport of molecules through ion channels and protein-mediated facilitated diffusion are two different mechanisms by which molecules can cross the cell membrane. The rate of transport for both mechanisms is determined by the concentration gradient of the molecules, with a higher concentration resulting in a higher rate of transport. The main difference between the two is that ion channels are passive and selective, while protein-mediated facilitated diffusion is active and not selective.

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Interneurons are located in the brain and the spinal cord of vertebrates, where they help provide complex reflexes and higher associative functions.

Interneurons, also known as association neurons, are a type of neuron found within the central nervous system (CNS) of vertebrates, including the brain and the spinal cord. They play a crucial role in integrating and transmitting information between sensory neurons and motor neurons, enabling complex reflexes and higher associative functions.

Interneurons form connections between different regions of the CNS, allowing for the processing and integration of sensory information and the coordination of motor responses. They receive input from sensory neurons and transmit signals to motor neurons or other interneurons, facilitating the communication and coordination of neural pathways.

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Answer:

A

Explanation:

closer to the sewage spill- less fish there will be because sewage is poisonous and at A the BOD is relatively high

hope I'm right and this helps goodluck.

Answer:

See explanation

Explanation:

a) open system

b) open system

c) open system

d) open system

e) closed system

f) open system

g) isolated

h) open system

The identification of the following as different systems is given below:

a. Reef ecosystem: open system.

b. Nitrogen cycle: open system.

c. Earth: open system.

d. Biosphere: open system.

e. Solar system: closed system.

f. Digestive system: closed system.

g. A national park: isolated system.

h. A large lake: open system.

When there is a continuous change brought about by the interchange of matter, energy, and information with its surroundings, a system can be regarded as open.

When there is energy transfer between the system and its surroundings but no exchange of matter, the system is said to be closed.

In contrast, an isolated system is practically never found in nature since it requires the interchange of matter, energy, and information with its surroundings.

Thus, the different types of systems are:

a) open system, b) open system, c) open system, d) open system, e) closed system, f) closed system, g) isolated, h) open system.

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The correct equation that represents the chemical process that occurs in photosynthesis is: A) Six molecules of carbon dioxide plus six molecules of water plus light energy converts six molecules of oxygen plus sugar.

What is the correct equation that represents the chemical process of photosynthesis?

This equation (Option A) shows that carbon dioxide and water are converted into oxygen and sugar, with the help of light energy. This is the process of photosynthesis that occurs in plants, algae, and some bacteria.

Option B is incorrect because it suggests that carbon dioxide and sugar are converted into carbon and oxygen, which is not the case.

Option C is also incorrect because it shows that water and hydrogen are converted into sugar, which is not accurate.

Option D is also incorrect because it suggests that oxygen and water are converted into carbon dioxide and sugar, which is not the correct process.

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The experiences the highest rates of cellular respiration is the plants.

Vital renewal is a complex process and produced in most factories with plants, usable energy (ATP) and usable power (P)H) for process transformation and maintenance. As a result, convert a large part of photosyntates back to CO2.

It is a process carried out by photosynthetic autotrophic organisms, such as plants, algae and some prokaryotes. These organisms capture sunlight, convert it into chemical energy, which will be used to produce organic compounds, based on water and carbon dioxide.

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Particulates can penetrate in respiratory system so the correct answer is  c. cause lung and heart disease.

PM stands for particulate matter, often known as particle pollution, which is the word used to describe an airborne mixture of solid and liquid droplets. Dust, grime, soot, and smoke are examples of particulate that are large enough or dark enough to be visible to the unaided eye. Some can only be seen with an electron microscope because they are so tiny.

The lungs can be reached by particles in the PM2.5 size range that can penetrate far into the respiratory system. Shortness of breath, coughing, sneezing, runny nose, eye, nose, throat, and lung irritation are just a few short-term health impacts that can result from exposure to tiny particles.

Additionally, exposure to particulate can impair lung function and make illnesses like asthma and heart disease worse.

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Answer:

D. Buffer

Explanation:

Buffer stock refers to inventory that is held in addition to cycle stock to guard against uncertainty in demand and/or lead time.

Hope this helps!

Answer:

There is a different reason for Earth's seasons. Earth's axis is an imaginary pole going right through the center of Earth from "top" to "bottom.". Earth spins around this pole, making one complete turn each day. That is why we have day and night, and why every part of Earth's surface gets some of each.

Explanation:

Answer:

the Earths rotation

Explanation:

when axis is tilted to the sun, that part of the earth is summer when it is not its winter and spring and fall are between these

Your answer is Age of Object = n times t 1/2

Answer:  C

Explanation:  I took the test on Edge2020

There are some ways to induce plants to grow in the dark: Providing artificial light, Using plant hormones, and Providing nutrients.

Went's experiments showed that plants grow towards the light source in a process called phototropism. This means that if plants are placed in the dark, they will not be able to grow towards a light source and may grow in a random direction or not at all.

Providing artificial light: Plants require light for photosynthesis, which is the process that enables them to produce energy from sunlight. By providing an artificial light source, such as fluorescent or LED lights, plants can receive the necessary light to grow, even in the absence of natural sunlight.

Using plant hormones: Some plant hormones, such as auxins, can promote cell elongation and growth. By applying a synthetic auxin such as indole-3-acetic acid (IAA) to the plant, the cells may elongate and the plant may grow even in the dark.

Providing nutrients: In the absence of light, plants may not be able to produce their own food through photosynthesis. However, by providing them with nutrients such as nitrogen, phosphorus, and potassium, they may be able to continue to grow, albeit at a slower rate.

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Answer: i believe its c

Explanation:

Because the moths adapted to their environment to survive

The change in moth color is an example of speciation. Thus the correct option is B.

Speciation is how a new kind of plant or animal species is created. Speciation occurs when a group within a species separates from other members of its species and develops its own unique characteristics.

When the environment changed, due to pollution, the moth population shifted because light-colored moths became easier to see so they were eaten more often. Organisms that survive have a better chance of reproducing so the population continues to grow. Human actions affect other populations.

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Answer:

amino acids

Explanation:

amino acids in protein build up muscle and provide energy storage. I hope this helps

Swallows like to reuse their nests year after year and make them out of mud pellets.

The process of building a nest requires a lot of energy, and swallows can make over 1,000 journeys. Unoccupied nests are taken over by new pairs.
Most songbirds only utilize a nest for one clutch or breeding season before building a new one, assuming they live to reproduce again. However, one study found that 44% of pairs of swallows returned to the same colony and used the same nest.

The material used to construct the nests is the main distinction between the two nests. Grass, sticks, and other materials are employed in the case of weaver birds. A swallow's nest is constructed of moist mud as well.

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Answer:

The answer is B: The projections increase the surface area-to-volume ratio of the cell, which allows for more efficient nutrient exchange with the environment.

Explanation:

These finger-like projections, also known as microvilli, are commonly found in cells that are actively involved in absorption or secretion, such as the kidney cells in this scenario. They significantly increase the surface area of the cell, thereby allowing more transport proteins to be embedded in the cell membrane and facilitating more efficient exchange of molecules between the cell and its environment. This increase in surface area doesn't significantly affect the volume of the cell, so it doesn't considerably increase the metabolic needs of the cell.

Therefore, these projections do not primarily increase the volume of the cell (option A), the speed of individual molecule movement (option C), or the selectivity of the membrane by limiting the number of transport proteins (option D). Instead, they enhance the cell's capacity for molecular exchange by increasing its surface area.

The most abundant in the body is cells.

Cell is the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body. A cell has three main parts: the cell membrane, the nucleus, and the cytoplasm.

Moreover, they provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. Cells also contain the body's hereditary material and can make copies of themselves. Cells have many parts, each with a different function.

There are two main types of cells: prokaryotic cells and eukaryotic cells. Prokaryotic cells include bacteria and archaea. Prokaryotes—organisms composed of a prokaryotic cell—are always single-celled (unicellular). Prokaryotic cells don't contain a nucleus.

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Answer:

4 - This molecule would be considered an enzyme

Explanation:

An enzyme lowers activation energy and speeds up a reaction

Answer:

The reactants for photosynthesis are light energy, water, carbon dioxide and chlorophyll, while the products are glucose (sugar), oxygen and water.

Explanation:

It takes six atoms of carbon (C), six atoms of oxygen (O) and twelve atoms of hydrogen (H) to make one molecule of glucose (C6H12O6)

Answer:

What are the reactants of photosynthesis are light, energy, water, and carbon dioxide,

Explanation:

Answer:

Each gill is supported by a gill arch – a bony structure that is oriented vertically on the side of a fish, just behind its head. The gill arch provides the support to hold a number of comb-like structures called gill filaments.

The components of homeostatic control system for mammalian body temperature regulation consists of temperature sensors, neurons and hypothalamus.

The temperature sensors are present at various parts of the body on the skin that sense the change in temperature and send the signals to the hypothalamus of the brain through the neurons.

The hypothalamus acts as the integrator that balances the correct temperature of the body by sending the signals through the efferent neurons to set the appropriate temperature. If the temperature is low the signals are sent such the body shivers and the response generated by the individual would be wearing woolen clothes.

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Growing tree roots physically break apart rock are the tree agents of mechanical weathering. So, the correct option is (A).

Mechanical weathering is also called physical weathering in which a large rock breaks down into smaller pieces of rocks. When rocks decompose or break down without experiencing any change in their chemical composition, it is known as mechanical weathering.

There are 3 Mechanical Weathering Processes which break down rocks

The roots of a plant grow into a crack in a rock. When these roots grow, they open the crack. Burrowing animals can also cause weathering. The animal may break the rock to dig for food or make a hole to live in.

Thus, growing tree roots physically break apart rock are the tree agents of mechanical weathering. So, the correct option is (A).

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Answer:

Explanation:

Oh