What are 2 controlled variables in this science experiment? If you answer something that makes sense, I'll give you brainliest!

Answer:

The kidneys help maintain the acid–base balance by excreting hydrogen ions into the urine and reabsorbing bicarbonate from the urine

Fuels are the energy-providing substances that drive machines and vehicles. Crudeoil is lightweight and easy to transport fuel. Thus, option C is correct.

Crude oil also called unrefined petrol that is a thick and viscous liquid but is light in weight and can be easily transported through the pipes in the refineries.

They vary in composition which makes different fossil fuels. Coal are solid material that cannot be transported and similarly, natural gas and steam are gaseous substances.

Therefore, crude oil is the correct blank.

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Explanation:

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False ,

Because Trilobites extincted 250 million years ago but the first flowering plant appeared at Cretaceous period.

Comparing prokaryotes and eukaryotes:

The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. which is where the nucleus eukaryotes store their genetic information.

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Answer:

osmosis

Explanation:

I'm so sorry if I'm wrong, I'm pretty sure that's it though

The movement of particles that would be most affected by a disorder causing damage to carrier proteins is active transport.

Active transport is a cellular process that requires the use of energy to move particles across a cell membrane against their concentration gradient, from an area of lower concentration to an area of higher concentration. Carrier proteins play a crucial role in active transport by facilitating the movement of specific molecules or ions across the cell membrane. These proteins bind to the particles being transported and undergo conformational changes that allow them to move the particles across the membrane.

If there is damage to the carrier proteins due to a disorder, their ability to bind to and transport particles may be compromised. This impairment can disrupt the active transport process, leading to a decrease or complete loss of the movement of particles against their concentration gradient. Consequently, the normal cellular functions that rely on active transport, such as nutrient uptake, ion regulation, and maintenance of cellular homeostasis, would be significantly affected.

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Answer:

Alpine tundra areas are found only at high elevations.

Explanation:

The arctic tundra is a specific region that covers the northernmost parts of the world from the north pole and extending south, whereas alpine tundra are found across the world at high altitudes.

Answer:

Alpine tundra areas are found only at high elevations.

Explanation:

pathogen

Explanation:

pathogen is a bacterium, virus, or other microorganism that can cause disease.

Answer:

pathogon is bacterium,virus and ...

Polygenic inheritance occurs when a trait is controlled by several pairs of genes, traits such as skin color and height in humans are the result of it.

It is used to refer to the inheritance of quantitative traits that occurs when a character is due to the action of more than one gene that may also have more than two alleles.

That is, it occurs when a characteristic is governed by two or more sets of alleles, there are traits, such as weight, skin color, height, which are governed by the cumulative effect of many genes.

Therefore, we can conclude that polygenic inheritance occurs when a trait is controlled by several pairs of genes, traits such as skin color and height in humans are the result of it.

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Answer:

high concentration to low concentration

Explanation:

particles bounce off of eachother and through probability the higher amount of concentrated particles the more likely for them to bounce and move to an area of low particle count

In the process of nitrogen fixation, the compound that is produced by bacteria from atmospheric nitrogen is ammonia.

This is a chemical and biological process in which bacteria take atmospheric nitrogen (N2) and convert it into different nitrogen-derived substances.

This process is essential for life as it provides plants with nitrogen rich substances they can use as atmospheric nitrogen cannot be taken by plants.

There are three main products:

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Answer:

Ammonia

Explanation:

I took the test! :)

The Atmospheric perspective is the effect produced by diffusion of light in the atmosphere whereby more distant objects have less clarity of outline and are lighter in tone.

Atmospheric perspective refers to a form.of illusional effect and atmosphere produce or reflect on an object. It is also the method use to create the illusion of depth in a painting or drawing work by changing the colour so as to simulate changes effected by the atmosphere on the colours of things seen at a distance.

Therefore, The Atmospheric perspective is the effect produced by diffusion of light in the atmosphere whereby more distant objects have less clarity of outline and are lighter in tone.

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Answer:

Explanation:

Explanation:

Humans have lungs, cows have lungs, and whales have lungs along with many others. However, not all animals use lungs to breathe. Fish use gills to breathe. However, not all fish use, or have to use gills

The size of tube 1 will eventually rise due to the entry of water. As a result of this, it will swell due to osmosis. While tube 2 would stay the same as the initial size.

Osmosis may be defined as the process through which the movement of solute molecules may take place from a lower concentration of solution to a higher concentration of solution through a semipermeable membrane. It is also called the net movement of water across a semipermeable membrane.

According to the context of this question, the actual reason for this increase in the size of the tube is due to osmosis, water will enter tube 1 in order to dilute the sucrose. Due to this, tube 1 may increase in size. But on contrary, the size of tube 2 remains the same because there is no need for dilution of the solution in which it is placed.

Therefore, the size of tube 1 will eventually rise due to the entry of water. As a result of this, it will swell due to osmosis. While tube 2 would stay the same as the initial size.

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Answer:

I think it wouldn’t make what it’s needed for work properly, it could cause it to not fit or work at all.

Explanation:

I hope it helps! Have a great day!

Muffin~

It make what it’s needed for work properly, it could cause it to not fit or work at all.

The Spring framework, sometimes known as Spring, has arisen as a response to all of these issues.

This framework eliminates the complexity associated in designing enterprise applications using EJB by leveraging a variety of innovative techniques, including as dependency injection (DI), aspect-oriented programming (AOP), and plain old Java objects (POJO).

Dependable, and scalable enterprise applications can be created by Java EE 7 developers using the open source, lightweight Spring framework. The primary goal of this framework is to offer you a variety of tools for managing your business objects.

Therefore, It make what it’s needed for work properly, it could cause it to not fit or work at all.

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Answer:

The flower would not be able to pollinate by itself.

Explanation:

The function of the anther is to produce pollen

Answer:

Physarum first grows as single-celled amoebae, but the amoebae fuse, and the organism loses its 'cellular' makeup. As the organism continues to grow, nuclei divide without cell division. The resulting bag of nuclei is called a 'coenocyte' or 'plasmodium'.

Explanation:

Answer:

A. Stimulus

Explanation:

Trust, hope this is helpful !!!

Answer:

if we don't kill deer there would be a increase in population and a decrease in the food they eat so number 2 is correct

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Answer:

bathing,cooking,washing clothes , cleaning, drinking

Explanation:

Because oxaloacetate is required by the body for other metabolic pathways, it is best to regulate gluconeogenesis at the level of synthesis of phosphoenolpyruvate carboxykinase.

Metabolic regulation refers to the various mechanisms employed by the cells and tissues to regulate metabolic activities in the body.

One form of metabolic regulation is gene expression regulation.

Phosphoenolpyruvate carboxykinase converts oxaloacetate to phosphoenolpyruvate while pyruvate carboxylase converts pyruvate to oxaloacetate.

Since oxaloacetate is required by the body for other metabolic pathways, it makes sense to regulate gluconeogenesis by regulating level of synthesis of phosphoenolpyruvate carboxykinase.

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Answer:

The statement preganglionic axon terminals release acetylcholine is true

Answer:

Make a fire in firepit

Explanation:

Answer:

C

Explanation:

Macrophages is a type of white blood cell. This basically finds out if there is an invader, and stimulates an immune response. Note that, this is not the only function of this structure.

The structures that are built to identify and recognize specific foreign agents and activate the immune system are antibodies, Therefore, option A is correct.

Antibodies, also known as immunoglobulins, are Y-shaped proteins that are produced by B cells in response to the presence of specific antigens in the body, such as viruses, bacteria, or other foreign substances.

Each antibody molecule is composed of four protein chains, two identical heavy chains, and two identical light chains, that are joined by disulfide bonds. Antibodies are a key component of the adaptive immune system, which is responsible for recognizing and eliminating specific invaders.

Antibodies play a critical role in protecting the body against infections, as well as in the development of vaccines and other immunotherapies. Therefore, option A is correct.

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Answer:

In my opinion, Yes the human population growth is a concern in the United States because Human population growth impacts the Earth system in a variety of ways, including:

Answer:

Yes the human population growth is a concern in the United States because Human population growth impacts the Earth system in a variety of ways, including:

Increasing the extraction of resources from the environment. These resources include fossil fuels (oil, gas, and coal), minerals, trees, water, and wildlife, especially in the oceans. The process of removing resources, in turn, often releases pollutants and waste that reduce air and water quality, and harm the health of humans and other species.

Increasing the burning of fossil fuels for energy to generate electricity, and to power transportation (for example, cars and planes) and industrial processes.

Increase in freshwater use for drinking, agriculture, recreation, and industrial processes. Freshwater is extracted from lakes, rivers, the ground, and man-made reservoirs.

Increasing ecological impacts on environments. Forests and other habitats are disturbed or destroyed to construct urban areas including the construction of homes, businesses, and roads to accommodate growing populations. Additionally, as populations increase, more land is used for agricultural activities to grow crops and support livestock. This, in turn, can decrease species populations, geographic ranges, and biodiversity, and alter interactions among organisms.

Increasing fishing and hunting, which reduces species populations of the exploited species. Fishing and hunting can also indirectly increase the number of species that are not fished or hunted if more resources become available for the species that remain in the ecosystem.

Explanation: