What does X represent in this model?
A. air
B. light energy
C. oxygen gas
D. water

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Answer:

The primary ways that scientists communicate research results are by publishing the results in journals, and writing reports.

Explanation:

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Answer:

The scientist will make a detailed presentation or a journal and show the world. The scientist will usually write down the procedure for it to be repeated again by other scientists.

Explanation:

Answer:

It depends on what grade level you are in. Younger grade levels only learn about, if i remeber correctly, four kingdoms. But there are actually six. In the traditional five-kingdom system there are only five.

The six-kingdoms system: Bacteria, Archea, Protista, Plantea, Fungi, Animalia.

The traditional five-kingdom system: Monera, Protista, Plantea, Fungi, Animalia

Gregor Mendel was the scientist who is called father of Genetics. He gave the idea of Monohybrid and Dihybrid cross.

[tex]\large{\underline{\underline{\pmb{\frak {\color {red}{Question:}}}}}}[/tex]

[tex] \sf \red{Explain \: monohybrib \: and \: dihybrid \: cross}[/tex]

[tex]\large{\underline{\underline{\pmb{\frak {\color {blue}{Answer:}}}}}}[/tex]

[tex]\sf \green{Monohybrid:}[/tex]

In monohybrid cross, one pair of contrasting characters is inherited from the parents.

[tex]\sf \pink{Dihybrid:}[/tex]

In dihybrid cross, two pairs of contrasting characters is inherited from the parents.

[tex] \boxed{ \frak \red{brainlysamurai}}[/tex]

Answer:

axial skeleton and appendicular skeleton

Answer:

the bottom

Explanation:

the bottom because it lets loose all the liquids and gases

Answer:

B.

These resources are nonrenewable and will eventually disappear.

Explanation:

Answer:

B.  These resources are nonrenewable and will eventually disappear.

Explanation:

Fossil fuels take millions of years to form, but we mine and use them at a rate that is much faster than their replenishment time.  That means that, at some point, we will use up all of the available fossil fuels before new ones can be formed.

Deductive reasoning is a sort of logical reasoning that starts with a broad concept and comes to a specific conclusion. It is also known as top-down thinking or moving from the general to the specific. Here the blank will be logical approach.

Deductive reasoning is a type of deduction that is used in both science and life in general.

It takes place when two true statements, or premises, are combined to form a conclusion.

A is equal to B, for example. B is also the same as C. Using deductive reasoning, one can conclude A is equal to C given those two statements.

It is a type of logical reasoning that begins with a broad concept and progresses to a specific conclusion.

Thus, deductive reasoning is a logical approach.

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Developing nanotechnology would result in a reduction of mineral use since only minute amounts of minerals are required.

Minerals refers the elemental form of elements found in the earth's crust either in the free or combined state with other elements.

Mining of minerals refers to the process of extracting minerals from the earth.

Nanotechnology would results in the use of minerals as it requires only very minute amount of these minerals in its processes.

Therefore, developing nanotechnology would result in a reduction of mineral use.

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Answer:

They are generated by natural phenomena like Earth's magnetic field and also by human activitys, mainly through the use of electronics. Electric magnetic field are a combination of invisible electric and magnetic fields of force

Answer:

Multicellular fungi reproduce by making spores. Mold is a multicellular fungus. It consists of filaments called hyphae that can bunch together into structures called mycelia. Several mycelia grouped together are a mycelium and these structures form the thallus or body of the mold.

Explanation:

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Answer:

The vast majority of fungi are multicellular. Most of the body of a fungi is made from a network of long, thin filaments called 'hyphae'. Hyphae filaments are made from tubular cells that connect end on end. Each cell is surrounded by a cell wall composed of a compound called 'chitin'.

Explanation:

Answer:

The backwards rotation makes Venus the only planet in the solar system where the sidereal day is actually longer than the solar one. The sun returns to it highest point in the sky before the planet has completed one rotation. Combining all this together leaves Venus with a solar day that takes 117 Earth-days.

Explanation:

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Bicarbonate ions present in body performs a variety of functions, in blood it carries carbon dioxide. Its other functions include keeping the balance of acids and bases in the body. It acts as a buffer.

Buffer is a type of solution that resists pH change either by the addition of acid or base.

Bicarbonate is a base, which the body requires to keep a normal acid-base (pH) balance.

This balance prevents the body from having too much acid means maintaining buffer. The lungs and kidneys helps to keep a normal blood pH by removing excess acid.

Thus, the correct option is B.

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Phenolphthalein is a weak acid and is colorless in solution. It is generally used to find out the endpoint of titration. As the An unknown solution is colorless when tested with phenolphthalein but causes the indicator phenol red to turn red it indicates the pH of the solution is 8.0 or above.

Phenol red is an indicator whose color can exhibit a gradual transition from color yellow to red.

Phenol red is actually a water-soluble dye as is used as a pH indicator, changing from yellow to red over pH 6.6 to 8.0.

Thus, it can be concluded that the pH of the given unknown solution is in range 8.0 or above.

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Answer:

Embryonic stem cells are more useful than the adults stem cells because;

* Embryonic stem cells have the ability to create any cell type in the human body while, the adults stem cells are more specialized( they generally make cells only from their tissue of origin).

They have the capacity to divide into additional stem cells or any kind of body cell.

Embryonic stem cells can develop into any type of human cell, whereas adult stem cells are more specialized and typically can only produce cells from the tissue from which they originated.

Additionally, it is simple to produce embryonic stem cells in a lab setting. There is always the option to manufacture more cells as needed because the cells can be developed through cultures.

Since embryonic stem cells are pluripotent, they are more adaptable in scientific experiments than adult stem cells. Finding novel treatments for ailments, wounds, and organ failure is one of the possible advantages of studying embryos.

Therefore, Embryonic stem cells are more useful than the adults stem cells.

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Answer:

A zygote is a fertilized ovum. The germ cells undergo meiosis to reach a haploid state (n) as part of spermatogenesis and oogenesis. The sperm and the unfertilized ovum reinstates a chromosome set in zygote in a diploid state (2n).

After fusing with the sperm, the second stage of meiosis takes place for separation of chromatids. Post-fertilization, mitosis of the zygote is initiated which develops into a mature offspring exhibiting characteristics of its parent.

Explanation:

The zygote stage development occurs in the first week of fertilization. The genome of the zygote is the combination of DNA in each gamete and contains all the genetic information required to form an individual.

Answer:

Zygote is a diploid cell resulting from the fusion of two haploid gametes

it forms when a sperm penetrates the outer surface of an egg.

Plants take carbon dioxide (CO2) out of the atmosphere to do photosynthesis, and thus help reduce the greenhouse gases warming the planet.

Explanation:

Plants, through photosynthesis, and soils sequester roughly a third of carbon dioxide emissions released into the atmosphere each decade from the burning of fossil fuels. During photosynthesis, plants open tiny pores on their leaf surfaces to suck carbon dioxide from the air and produce their own food.

Answer:

Its not C I think it's B

Explanation:

I took the test and i guessed C and it was wrong but I think B makes the most sense.

Explanation:

Pollution is:

the presence in or introduced into the environment of a substance or thing that has harmful or poisonous.

typically caused by man made things, like factories when they leak pollutant air into the atmosphere and other items like ships when they leak oil pollutants into the waters.

Fear

Food

Hunting

Showing off to others

Profit

Answer:

right side

1 thalamus

2oblongata

3  cerebellum

4 brain stem

left side

5 cerebrum

6 hypothalamus

7 pons

8 medulla

Explanation:

Answer:

Option A

Explanation:

Xylem is made of dead cells that transport water. Stomata are pores in leaves that help CO2 enter the plant. Chlorophyll absorbs sunlight (it cannot accept green light which is why leaves are green, cuz they reflect the green wavelenght)

Answer:

Interactions among R groups results in hydrophobic interactions, hydrogen bonds, salt bridges, and sulfur-sulfur covalent bonds.

Explanation:

The above listed interactions help stabilize the protien organization (R group is the main player)

Answer:

The Retina

Explanation:

The photoreceptors lie at the back of the retina

In a process called crossing over, genetic material is exchanged between homologous chromosomes. This occurs during the prophase stage of cell division.

Crossing over is the unique process by which genetic material is exchanged between the non-sister chromatids of homologous chromosomes.

Crossing over occurs in the prophase stage of meiosis and ultimately results in the formation of genetic combinations in offspring that are not present in the parents.

Therefore, the process called crossing over, genetic material is exchanged between homologous chromosomes and it occurs during the prophase stage of cell division.

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Catenation:

The property of self linkage among identical atoms to form long chain compounds is known as catenation. Carbon exhibits maximum catenation, when compared to elements like sulphur and silicon, due to strong carbon-carbon bonds and tetra valency. Due to this catenation, carbon atoms can form various types of straight chains, branched chains and ring structures.

Formation of multiple bonds:

Carbon atoms are capable of forming multiple bonds with other carbon atoms.

Hydrocarbons:

All the carbon compounds which contain just carbon and hydrogen are called hydrocarbons.

isomerism arises from the difference in the structure of carbon chain which forms the nucleus of the molecule. It is, therefore, named as chain, nuclear isomerism or Skeletal isomerism. For example, there are known three pentanes which have the same molecular formula.

Answer:

alternative

Explanation:

alternative splicing is a deviation from this preferred sequence where certain exons are skipped resulting various froms of mature mRNA.

Answer:

Kinetic Energy

Explanation:

An arrow that is being pulled back is building Kinetic Energy.

Answer: b

Explanation:

different species cant reproduce