A group of students is trying.to determine which detergent will best remove an oil stain. They stain five separate cloths with oil and.then wash each of.the cloths in a deficient detergent. They repeat each test two more times. Which step should be included in their investigation plan?

Answer:

A. Polysaccharide

Answer:

d carbohyrate

Explanation:

Answer:

Answer is both b and c

Explanation:

Good experiments have two essential characteristics: a single variable is tested, and a control is used. The variable is the factor that changes in an experiment in order to test a hypothesis.

Answer:

D. both B and C

Explanation:

The control group is not to be altered as to have true results for comparison/differentiation.

Explanation:

The periodic table, also known as the periodic table of elements, is a tabular display of the chemical elements, which are arranged by atomic number, electron configuration, and recurring chemical properties. ...

The columns, called groups, contain elements with similar chemical behaviours.

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Answer:

sodium chloride, magnesium, sulfate, calcium, potassium, as well as dissolved gases, including nitrogen, oxygen, and carbon dioxide.

Explanation:

Ocean water little a lower freezing point, and higher electrical conductivity due to salt.

Seawater has special qualities such as being salted, having a little lower freezing point than freshwater, being significantly denser, having a lot higher electrical conductivity, and being slightly basic.

The two ions that are most often found in seawater are sodium and chloride. Over 90% of the dissolved ions in saltwater are made up of chloride and sodium.

Seawater has a salinity of around 35 parts per thousand of salt. 96.5 percent of seawater is made up of pure water, 2.5 percent salt, and minor quantities of dissolved inorganic and organic compounds.

Therefore, due to salt ocean water has higher electrical conductivity and other properties.

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Answer:

the answer is B. the amount of available resources

Explanation:

The carrying capacity of an ecosystem determines the amount of available resources. Therefore, option B is correct.

The term ecosystem is defined as the community or group of living organisms that live together and interact with each other in an environment. The biotic and abiotic components are linked together through nutrient cycles and energy flows.

Ecosystem plays an important role to purify our air, maintain our soil, regulate the climate, to clean our water, recycle nutrients and provide us with food. They are at the foundation of all civilization and sustain our economies.

The carrying capacity of an ecosystem determines the amount of available resources. Carrying capacity depends on many abiotic and biotic factors in the ecosystem.

Thus, option B is correct.

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Answer:

The answer is C. Petri Dish because a beaker, flask and graduated cylinder all hold liquid and can be transferred.

Answer:

Feline High Rise Syndrome

Explanation:

FHRS is found in cats usually when they fall from great height or steep elevation. The cat can incur injuries to itself when they fall. This occurs when they fail to jump properly or miss the jump while landing. The nature of cats is usually athletic and they take risks for their jumps. If the cat misses a jump they fall from the height which results in severe injuries to it and sometimes causing death.

Answer:

Viruses are considered to be non-living because they arent

Answer:

I think it's viruses are considered to be non-living because a virus can't reproduce by itself. It must hyjack a cells system to be able to reproduce.

Answer:

A and C are correct

Explanation:

C is correct and since A is the exact same thing just in different words it is also correct

Answer:

Amino acids are molecules used to build proteins. All amino acids have a central carbon atom surrounded by a hydrogen atom, a carboxyl group (COOH), an amino group (NH2), and an R-group. It is the R-group or side chain that makes each of the 20 amino acids unique.

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Answer: An amoeba is a microscopic protozoan that is found in both terrestrial and aquatic environments. Amoebas are at the bottom of the food chain, providing nutrients for other living things. Humans are members of the primate family and are the most intelligent living things on Earth.

Answer:

Na,

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Explanation:

Answer:

I cant really see the first answer choice clearly but if it says are composed of at least one cell that's the right answer

Organisms that use oxygen need it for cellular respiration, in which energy is released from glucose. Energy is needed by the organism for growth, mobility and reproduction.

Answer: Almost all living things need oxygen. They use this oxygen during the process of creating energy in living cells... Animals form other half of the oxygen cycle. We breathe in oxygen which we use to break carbohydrates down into energy in a process called respiration.

Explanation:

Answer: I'm doing the same homework. I'm pretty sure that the 6 hexagons are the startch glucose. Try page 2

Explanation:

Each monomer is correctly connected to its polymer in the attached image in which amino acid is attached with protein, the nucleotide is connected to DNA, the fatty acid is attached to fat or lipid, and glucose or sugar is attached to carbohydrates.

Monomers are the basic unit or building blocks of larger molecules known as polymers. Polymers are made up of two or more monomers or long chains of monomers attached together.

The macromolecules are polymers and made up of their particular monomers:

Thus, the correct answer is attached as the image.

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Answer:

No, the petal will be non -living

Explanation:

This is because it would not be able to reproduce or respond to any external stimuli, and because it is no longer attached to the flower where it gains it's energy and nutrients from it will be classified as non- living as it cannot sustain life on it's own.

A manipulated variable is an independent variable subject to the changes of an experiment to analyze its effect on a dependent variable. Simply put, the variable is modified to assess its influence over the experiment’s overall result. It’s called “manipulated” because it’s the one you can change. In other words, you can decide ahead of time to increase it or decrease it. In an experiment you should only have one manipulated variable at a time.

Answer:

A. Compounds contain fixed ratios of different elements.

Explanation:

Water always has this 2:1 ratio of hydrogen to oxygen. Like water, all compounds consist of a fixed ratio of elements. It doesn't matter how much or how little of a compound there is. It always has the same composition.

Every compound has fixed ratios of different elements. The correct option is A.

A substance that could not be converted into various components by any non-nuclear chemical process is referred to as an element.

Every compound has fixed ratios of different elements.

Thus, the correct option is A.

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Answer:

insertion mutation

Explanation:

an extra one has been inserted into the DNA segment making it insertion

Answer:

Insertion Mutation

Explanation:

Insertion is a type of mutation involving the addition of genetic material. An insertion mutation can be small, involving a single extra DNA base pair, or large, involving multiple pairs of extra DNA base pairs.

Explanation:

Diffusion is the movement of particles from a region of higher concentration to a region of lower concentration

Answer:

If one part of the system fails to carry out its function properly, the air we breathe cannot go to the lungs the transferring of oxygen in the blood will be affected. If this happens, a person will most likely have a difficulty in breathing which may lead to other complications or even death.

Explanation:

I hope it helped

Answer:

Hope it helps

Explanation:

If one part of the system fails to carry out its function properly, the air we breathe cannot go to the lungs the transferring of oxygen in the blood will be affected. ... Oxygen, as it enters our body, moves to a series of parts in the breathing system that are connected to each other and needs to work as one.

Answer:

Función de las neuronas. Las neuronas tienen la capacidad de comunicarse con precisión, rapidez y a larga distancia con otras células, ya sean nerviosas, musculares o glandulares. A través de las neuronas se transmiten señales eléctricas denominadas impulsos nerviosos.

Explanation:

As water moves from the roots up through the stem of a plant adhesion is a property of water that enables this to happens. The characteristic of water causes adhesion is hydrogen bond. Thus, option D is correct.

Water has been defined as the water present in the underground water below the soil as well as in the crack of the earth. The percentage of freshwater in the world would be 30%. There are mainly three types of groundwater and these are known as hand-dug wells, springs, and drilled boreholes.

The water stored under the ground has been obtained from rain and stored in ground so that it can be used later. Ground water has observed very clean and fit for drinking and the reason has been the soil present on top and work as filter and the groundwater is free from all microorganisms.

The use of groundwater is just to wash dishes and cooking utensils in cold, soapy water,Use a disinfectant wash cloth to clean the refrigerator. Rinse and wash contaminated clothing separately.

Therefore, As water moves from the roots up through the stem of a plant adhesion is a property of water that enables this to happens. The characteristic of water causes adhesion is hydrogen bond. Thus, option D is correct.

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Answer:

True

Explanation:

This is a true statement. The answer is true.

Answer:

True, plants in the sun grow larger and fatster than those growing in the shade t

Answer: ( B. ) build up of pressure between tectonic plates

Explanation:

Answer:

A particular atom will have the same number of protons and electrons and most atoms have at least as many neutrons as protons.

Explanation:

An element is a substance that is made entirely from one type of atom. ... A compound is a substance made from two or more different elements that have been chemically joined.