Which are the catalysts of reactions in living things?

Answer:

Someplace to live

Explanation:

Answer:

someplace to  live

Explanation:

Answer:

A very acidic pH level is 1, and a very basic pH level is 13.

I'm not sure I understand about your ratios, whether they are the choices or just numbers.

Explanation:

On the pH scale, the more you go to the left, the more acidic the solution is. Numbers below 7 are considered acidic, and the lowest number is the most acidic. The more you move to the right, the more basic or alkaline the solution is. Numbers above 7 are considered basic. So the higher the number of that side of the scale, the more basic stuff is. 7 is considered neutral.

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Answer:

Explanation:

Answer:

Solution are mixtures that can be physically separated

Explanation:

This is because we can separate solutions physically using some distinct separation techniques such as evaporation, simple distillation, distillation e.t.c

Answer:

The answer is Solutions are mixtures that can be physically separated.

Explanation:

A solution is a homogeneous mixture at the molecular or ionic level of two or more pure substances that do not react with each other, whose components are in variable proportions. A chemical solution consists of a solvent and one or more solutes. The solute is the substance that dissolves and the solvent that dissolves it. the solutions can be separated by physical processes

Answer:

No. China is already consuming third of the world's coal production for electricity, which is a serious challenge to the environmental. The trade off is fair so China should build the new dam.

No, you do not have to think that China should reconsider additional large hydroelectric projects. This is because of the fair trade-off in China that makes a difference.

A hydroelectric project may be defined as a type of renewable source of energy that significantly generates power through utilizing a dam or diversion structure in order to alter the natural flow of a river or other body of water.

Being the world's third largest producer of coal and electricity, China is creating a major threat to the environment that become one of the most potent reasons for climate change. But due to the existence of a fair trade-off in China, they are focussing on building a new and large number of dams to a larger extent.

Therefore, you do not have to think that China should reconsider additional large hydroelectric projects. This is because of the fair trade-off in China that makes a difference.

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Answer:

sunlight

Explanation:

sunlight doesn't depend on any of the other factors

Answer:

It means consistency.

Explanation:

The results of observations and/or experiments are reasonably the same when performed and repeated.

It means consistency.

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Answer:

Half of the DNA of one parent and half of the DNA

from the other parent to the offspring.

Example: If one parent was 72% English quail, the offspring would only be half.

Answer:

C. a detailed, more accurate version of a simple object or idea

Explanation:

A model is a detailed, more accurate version of a simple object or idea.

Answer:

The sugar will result in a formation of a clot the WBC cannot overcome and can result in a cardiac arrest, so the nurse should be stopped immediately.

Answer:

it is the movement of ions/molecules across a cell membrane into a higher concentration region which is assisted by enzymes and requiring energy

Explanation:

cellular energy to reach this movement

Answer:

as explained below:

Explanation:

it results as follow:

while you are jogging or doing any physical activity than your body requires alot of energy and produce a lot of carbon dioxide which causes the heart to beat fast as to remove co2 and take o2 from the blood leading to higher rate of pulse.

on the secon hand if you are sedentary , consumption and production of o2 and co2 respectively will decrease leading to the slow beating of heart leading to low pulse

Final answer:

The level of carbon dioxide in the blood is closely monitored to maintain homeostasis. When there is an excess of carbon dioxide, the brain triggers a faster pulse rate to increase breathing and remove the excess carbon dioxide.

Explanation:

The level of carbon dioxide in the blood is closely monitored to maintain blood gas and pH homeostasis. Cells in the brain detect the level of carbon dioxide and adjust the rate of breathing accordingly. When the level of carbon dioxide becomes too high, the brain triggers a faster pulse rate to increase the rate of breathing and remove the excess carbon dioxide. This helps to regulate the levels of both gases in the body.

The steepness or the gentleness of the slopes is depicted by contour lines.

A contour line is a function of two number of variables which forms a curve connecting the points of the equal value. It is a three dimensional diagram with the function with x and y variable parallel the plane (x, y) .

In cartography, a form line joins purposes of equivalent rise (tallness) over a given level, for example, mean ocean level. A contour map is a guide represented with form lines, for instance, a topographic guide, which along these lines indicates valleys and slopes, and the steepness or tenderness of inclines.

The form interim of a shape guide is the distinction in height between progressive shape lines.

Answer:

Rainforest.

Explanation:

The rainforest biome is located near the equator. The key words in this question are heavy rainfall, as no other biome experiences heavy rainfall.

Answer:

Pure water is neutral in nature and this can be justified via the fact that when water is broken down, it gives equal concentration of acidic (H+) and basic(OH-)

Explanation:

The answers are: A and B

A. A tubeworm retreating from a predator

B. A large fish chasing is a prey in the sea

The ability of cells to communicate, that is, receiving and sending signals from and to other cells, determines the interaction between unicellular organisms and regulates the function and development of the body of multicellular organisms. For example, bacteria communicate with each other in the quorum sensing process to determine whether they are sufficient before forming biofilms, while cells in animal embryos communicate to coordinate the process of differentiation into various cell types.

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Details

Class: Middle School

Subject: Biology

Keywords: cell communication

Answer:

A. A tube worm retreating from a predator

Explanation:

Cells can receive and send messages as a form of communication for a certain function within an organism to be performed. This function can be related to the regulation of some biochemical process, development of some activity and even when the organism needs to defend itself, escape or adapt quickly to environmental changes.

The ability to send and receive messages is regulated by the cell membrane. An example involves a cell membrane receiving and sending messages occurs in a situation where a tubular worm needs to retreat from a predator. At that moment, the cells communicate to carry out the escape and protection process.

Answer:

It's the universal law, Learned this like a billion  years ago

Explanation:

Just know it, the universal law can't be changed, it's in place all the time, and even tho scientists test it it never changes, because they can never find out it's wrong.

Answer:

Scientific law is the law that stands the test of time, often without change. It is experimentally validated and confirmed again and again with time. It helps in creating right predictions for different situations.

Explanation:

Scientific law is a universal law which is applicable for everyone in the earth and also has uniformity. However, theory does not stands the test of time. It can be applied facts that are unrelated and relationships that are new. The theory comes from observations and experimental evidences.

Answer:

C

Explanation:

I saw the exact same question on my test and I got it right

The frequency of a certain trait in a population will increase if those organisms without the trait interbreed freely with those that have the trait.

The frequency of a population is the allele frequency, which is common in a population.

It is determined by the count of times an allele appears in a population.

It is also called relative frequency.

Thus, the correct option is C, Those organisms without the trait interbreed freely with those that have the trait.

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Planet Earth  is most like a closed system that does not allow transfers in or out of the system

Answer: A. Planet Earth

Explanation:

In a closed system, there is no exchange of mass. However, the energy might get exchanged. The exchange of mass and energy depends upon the property of the membrane or the boundary of the substance or an object.

The Earth is basically a closed framework; it acquires huge amount of energy from the Sun yet the exchange of matter with the outside is just about zero. Material streams between stores or sinks along pathways, or motions.

Answer:

b c and d

Explanation:

they are from different species therefore would not compete for same mates.

Answer:

food, space, water

tectonic plates in the earth's crust has moved almost every piece of land from its original spot. On average, tectonic plates moved land masses about 2.3 CM a year.

Answer:

Cools, moves to the side, and sinks, making a circular pattern.

Explanation:

It cools because it dissipates some of this heat to the lower crust. As it moves to the side, it drags along the crust hence powering the tectonic movements. As it cools, the liquid rock becomes denser and begins to sink to the bottom of the mantle as more hot and less dense liquid rock from the bottom rises. This forms a circular convection loop similar to that of water in a container being heated from below.  

Answer:

cools, moves to the side, and sinks, making a circular pattern

Answer:The U.S. Environmental Protection Agency (USEPA) provides the following definition of NPS pollution: Non-point source pollution generally results from land runoff, precipitation, atmospheric deposition, drainage, seepage or hydrologic modification.

Explanation:

There is no change will be happen in total energy, when skater moves down and up the U-shaped ramp.

In order to accomplish work and to produce heat as well as light, energy must be delivered to a body or even to a physical system. Energy would be the quantitative attribute that does this.

Total Energy means the sum of all final energy used at a certain branch or variable. Because energy data has been entered directly, total energy can be distinguished from overall energy intensity.

There is no change will be happen in total energy, when skater moves down and up the U-shaped ramp.

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Final answer:

The total energy of a skater moving down and up a U-shaped ramp remains constant, with gravitational potential energy converting to kinetic energy as the skater descends, and kinetic energy converting back to potential energy as the skater ascends.

Explanation:

When a skater moves down and up a U-shaped ramp, the total energy of the system is conserved, assuming there is no friction or air resistance. As the skater descends the ramp, gravitational potential energy is converted into kinetic energy, making the skater speed up. This conversion continues until the skater reaches the lowest point of the ramp. When the skater moves up the other side, kinetic energy is converted back into gravitational potential energy, causing the skater to slow down. The highest point the skater can reach on the opposite side will have the same gravitational potential energy as the initial height if no energy is lost to friction or air resistance.

These energy transformations demonstrate the principle of conservation of mechanical energy, which states that the sum of kinetic energy and potential energy in a closed system remains constant if only conservative forces, like gravity, are at work.

The answer is D. The first two answers would relate to neutrons and protons and the third answer is false due to electrons never found in a fixated path.

Answer:

D. found in regions called orbitals

Explanation:

Orbitals are regions in the electrosphere of the atom where the probability of finding the electron, or the wave function that describes the motion of an electron, is greatest.

According to Pauli's Exclusion Principle, each electron has a maximum of two electrons. For orbitals that do not have both electrons, we say they are incomplete and that they are isolated or unpaired electrons.

In addition, when filling orbitals, ie, doing electronic distribution, this should be done according to the Hund Rule or Maximum Multiplicity Rule, which says that this filling should be done in a way that gets as many as possible. of unpaired orbitals.

Answer:

Lysosomes

Explanation:

is also called as suicidal bag of the cell as it is involved in digestion of worn out or damaged cell or large molecules into smaller one by secreting digestive enzymes. The smaller molecules is excreted out of the cell though cell membrane.

The levels of organization in a multicellular organism from a simpler perspective to a more detailed and complex one is cell, tissue, system, organism.

Therefore, we can conclude that matter is organized in levels of complexity, these are, from smallest to largest are: cell, tissue, system, organism.

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Answer:

The main reason behind Plymouth settlement is to achieve freedom of religion.

Explanation:

Some of the members of Separatist Church from England in 1620, September, during the era of King James I sailed towards Mayflower and ultimately landed in the Cape-Cod or Massachusetts. They finally decided to settle in the Plymouth Rock, the first permanent European settlement in New England, The Plymouth Colony.

The Separatist believed that the European Churches have somehow failed to perform the important works of Protestant Reformation, thus they left the Church and settled in Plymouth to regain freedom of religion and securing a better Utopian society there.  

Final answer:

Animals contribute to the carbon cycle by exhaling carbon dioxide during respiration and via methane production in animal husbandry practices, both of which affect atmospheric carbon levels and can contribute to global warming.

Explanation:

Animals contribute to the carbon cycle in several significant ways. Firstly, they participate by releasing carbon dioxide (CO2) into the atmosphere as a byproduct of cellular respiration. When animals breathe, they take in oxygen and release CO2, which is a critical component of the global carbon cycle. Secondly, through the practice of animal husbandry, humans rear large numbers of livestock for food, which further contributes to the carbon cycle. These animals not only respire, releasing CO2 but also produce methane (CH4), a potent greenhouse gas, through enteric fermentation. Hence, animals influence both the natural carbon exchange in ecosystems and the anthropogenic impacts on the carbon cycle that can contribute to global warming.

Genetic engineering often involves inserting the DNA of one organism into another to create GMOs. This uses recombinant DNA technology for purposes like agricultural improvements. Examples include Roundup-ready soybeans and borer-resistant corn.

Scientists use the process of genetic engineering primarily to insert the DNA of one organism into another organism. This is achieved using recombinant DNA technology, where foreign DNA is added in the form of recombinant DNA vectors generated by molecular cloning. The organism that receives this recombinant DNA becomes a genetically modified organism (GMO). When the inserted DNA comes from a different species, the resulting organism is referred to as transgenic.

This practice has been applied to bacteria, plants, and animals since the early 1970s for various purposes including academic research, medical treatments, agricultural improvements, and industrial applications. A famous example of GMOs in the United States are Roundup-ready soybeans and borer-resistant corn, which are common in many processed foods.

Answer:

Examples of where primary succession may take place include the formation of new islands, on new volcanic rock, and on land formed from glacial retreats.