All of these are related to the formation of oil or natural gas EXCEPT - A) decomposed animals B) decayed plants Eliminate C) sedimentary rocks D) active volcanoes

Seeds are not the reproductive structures of plants. Seeds are the product of reproduction.

Seeds are not the reproductive structures of plants. Seeds are the product of reproduction.

In flowering plants Reproduction can occur both asexually and sexually, these flowering plants or angiosperms primarily do  sexual mode of reproduction.

Flower is the major organ where Reproduction occur  in which  both male and the female gametes are present and various other parts of flower involve in the process of reproduction.

There are four important steps in the reproduction such as Pollination, Gametogenesis, Fertilization

The flower is a specialized structure where reproductive parts are located  which contain the male and female reproductive organs which facilitate fertilization.

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Answer

Well, this should be changes in the temperatures of the Earth

Explanation

A study in climatic changes over a period of 5 years should first observe how the temperature is balanced on Earth as a factor to determine the amount of energy entering and exiting the Earth. The elements of study should cover differences in the amount of energy reaching the Earth, differences observed in the reflectivity of the atmosphere and surface of the Earth and the greenhouse effect

Answer:

A

Explanation:

Cladograms are concerned with the way organisms are related to common ancestors through shared characteristics.

Phylogenetic trees compare organisms over evolutionary time and the amount of change that has occurred over time to figure out the relationships.

The species or groups of interest are located at the ends of lines known as the tree's branches in a phylogenetic tree.

As an illustration, the phylogenetic tree below depicts relationships between five species that are located at the endpoints of the branches, A, B, C, D, and E.

Therefore, Cladograms are concerned with the way organisms are related to common ancestors through shared characteristics.

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Ans.

The Che proteins (chemotaxis proteins) are cytoplasmic proteins that play an important role in signal transduction pathways between the repellent or attractant and flagellar motor switch of a bacterium. Bacterial cell membranes contain different chemoreceptors for different attractants and repellents.

When a repellent or attractant binds with a chemoreceptor, stimulation of signal-transduction pathway occurs.  It sends a signal to the cytoplasmic domain of receptor, which interacts with Che proteins, present at cytoplasm. The rate of auto-phosphorylation decreases when an attractant binds with receptor, while the rate of auto-phosphorylation increases when an attractant binds with receptor.

Thus, 'the attractant enhances smooth swimming and counterclockwise rotation towards the chemical source, which repellent enhances tumbling clockwise rotation away from a chemical source.'  

Answer:- The three forms of nitrogen in an aquarium are

1. Nitrate NO3-

2Nitrite NO2-

3. Ammonia NH3

Explanation:

Thus, in this nitrogen cycle we can see that there are three different forms in which nitrogen is present- ammonia, nitrate and nitrite.

Terrain this is the answer lat me know if i am wrong

The energy in a polysaccharide is stored in the high energy carbon-hydrogen covalent bonds within the monomers. The breaking of these bonds is what is responsible for releasing energy used to generate ATP.

THE ANSWER IS: C

the study of living organisms is called biology .

Explanation:

Nitrogen breaks down the oxygen at high temperatures

The answer is B. Natural Gas.

Answer: Oil

Explanation:

The united states is the leading producer of the crude oil and gas and holds more coal reserves as compared to the other countries.

The crude oil production is accounted to be largest in the United States which accounts for more than 10.9 million barrels per day.

This is a huge number which is not been expected from any of the other countries. The United states is the leading country when it comes to fossil fuels.

1) D. subduction

2) D. provide evidence for seafloor spreading

I took it too lol

Seafloor spreading is the process of splitting apart of tectonic plate

The process illustrated by the area labeled G in figure 9–1 is subduction

D. Subduction

Strips of alternating magnetic polarities is found in rocks in the ocean basins;

D. Provide evidence for sea floor spreading

Reason:

Subduction is a process in geology that occur where two plates converge

(usually ocean ocean plate convergence or oceanic continental

convergence) such that lithosphere of one plate is subducted or dives

beneath a less dense plate into the mantle, where it is recycled

The observations of the strips located on the ocean floor are as follows;

The above observation are an evidence of seafloor spreading

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your answer is C. cleavage, fracture

cleavage the way minerals breaks apart, split easily along a flat surface,

fracture the way minerals break apart, breaks in an irregular way

The way that a mineral breaks can help to identify that mineral. Some minerals have a tendency to split evenly along specific or straight planes, this is called cleavage; other minerals break in more of an irregular pattern is called as fracture.

Answer: Option C

Explanation:

Cleavage refers to the manner in which a few minerals break along specific lines of shortcoming in their structure. Mica is a best example as it breaks along firmly divided level planes that yield slim sheets.

Calcite is another genuine model, breaking along three distinct planes that yield blocky pieces that resemble a rectangular box that has been twisted.  On the other hand, fracture is the propensity of a mineral to break along bended surfaces that don't have planes and break in a irregular pattern.

Cell Membrane Semi-permeable membrane made of phospholipids that acts as a barrier between inside and outside of the cell.

Cytoplasm The fluid, cytoskeleton, and organelles inside a cell.

Nucleus Contains DNA and control's the cell's activity.

Cell organelles that have their functions listed correctly are as follows:

"Chloroplast, Cytoplasm, Vacuole Mitochondria, Cell membrane and Cell wall"

1.Chloroplasts:

Chloroplasts are plant cell organelles that convert light energy into relatively stable chemical energy via the photosynthetic process.

2. Cytoplasm:

Cytoplasmic organelles are "little organs" that are suspended in the cytoplasm of the cell.

3. Vacuole:

In plant cells, vacuoles help maintain water balance.

4. Nucleus:

It controls and regulates the activities of the cell (e.g., growth and metabolism) and carries the genes.

5. Nuclear membrane:

It serves to separate the chromosomes from the rest of the cell.

6. Mitochondria:

It is involved primarily in cell respiration and energy production.

7. Cell membrane:

It provides protection for a cell.

8. Cell wall:

It provides structural strength and support, and also provide a semi-permeable surface for molecules to pass in and out of the cell.

So, in the given table the organelle that represents correct functions are:

"Chloroplast, Cytoplasm, Vacuole Mitochondria, Cell membrane and Cell wall".

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Question: What are linked genes?

Answer: genes on the same chromosome that are inherited together

Explanation: this is because these genes are not inherited by themselves

question answered by

(jacmorris04)

Linked genes are genes on the same chromosome that are inherited together during cell division because they are located closely together. These genes often lead to unique patterns of inheritance.

Linked genes are genes that are located on the same chromosome and thus are likely to be inherited together during the cell division process. This is because they are situated so close to one another on the same chromosome that they do not separate independently, a key tenet of Mendelian genetics. Because of this, linked genes often show genetic traits or phenotypes that violate the principle of independent assortment, leading to unique patterns of inheritance.

For example, in fruit flies, the gene for eye color and the gene for wing size are linked genes. This means that if a parent has red eyes and large wings, their offspring are much more likely to also have red eyes and large wings because these traits are often inherited together due to the close proximity of their respective genes on the chromosome.

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Life is classified in many levels from less specific to more specific:

Domain (bacteria, archaea, eukaryotes)

Kingdom

Phylum

Class

Order

Family

Genus

Species

The domains 'contains' the most number of organisms, species contain the least number of organisms.

Answer:

Species

Explanation:

The highest taxonomic category is domain followed by kingdom, phylum, class, order, family, genus and species. Among this, being the highest category, domain includes maximum number of organisms. On the other hand, being the lowest taxonomic category, species would include least number of organisms.  

Example: Domain “eukarya” includes all the eukaryotic organisms while species "sapiens" includes only present day human beings.

Answer:

Scientific Evidence and theories:"In the field of sciences each aspect relating to matter and energy or any other entity is measured, tested, and then experimentation is done on it as according to the standards.The measured entity is compared with the standards provided."

In each era there are different level of advancements been made by the researchers, as these new evidences and theories are presented in order to enhance our ability to understand this universe from a whole different perspective. This leads us to creating new theories and if they survive luckily,than they might even become a Law.

Explanation:

The alligators in the mangrove forest will receive a portion of the 500,000,000 pounds of biomass produced by the phytoplankton in the food web.

To determine how much biomass the alligators in the mangrove forest will receive, we need to follow the energy flow in the food web. Phytoplankton, as primary producers, produce 500,000,000 pounds of biomass. The energy from the phytoplankton is then passed on to primary consumers, secondary consumers, and so on. As apex predators, the alligators will receive the biomass from all the trophic levels below them. The exact amount will depend on factors such as energy transfer efficiency between trophic levels, but the alligators will receive a portion of the 500,000,000 pounds of biomass.

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Hurricanes have the ability to produce large waves due to the combined effects of strong winds and low atmospheric pressure.

The first key factor is the strong winds associated with hurricanes. These rotating winds can reach extremely high speeds, often exceeding 100 miles per hour. As these powerful winds blow across the surface of the ocean, they create frictional forces with the water.

The second factor is the fetch, which refers to the distance over which the wind blows uninterrupted across the ocean surface. Hurricanes, with their large size and slow movement, allow the winds to act over a considerable fetch, sometimes spanning hundreds of miles.

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No, it is not possible to have thunder without lightning. Thunder is a direct result of lightning.

So the answer is False

I hope this useful

No, it is not possible to have thunder without lightning. ... A typical cloud-to-ground flash lowers a path of negative electricity (that we cannot see) ... one-millionth of a second - so the human eye doesn't see the actual formation of the stroke.

Enzymes are very sensitive to temperature and pH.

An enzyme will not function well or at all if it is at the wrong temperature or pH level.  However, there is no set range for all enzymes; every enzyme is different and has their own range.  For example, the pH levels under which stomach enzymes work best would be vastly different from the pH levels under which intestinal enzymes work.

Hope this helps!!

Answer:

DNA - Deoxyribonucleic acid, a macro molecule which has all the hereditary data or information in many living beings.

Function- DNA plays an important role in the production of proteins, along with the metabolism, and reproduction of the cells.

Explanation:

Structure of DNA:

Deoxyribonucleic acid, a macro molecule which has all the hereditary data or information in many living beings.

DNA plays an important role in the production of proteins, along with the metabolism, and reproduction of the cells.

The image is a simplified representation of a short DNA molecule, with deoxyribose sugar molecules in orange, linked to phosphate molecules through a special type of covalent linkage called the phosphodiester bond.

Each nitrogenous base is represented by a different color – thymine in purple, adenine in green, cytosine in red and guanine in blue.

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Option b is correct. The small circular piece of bacterial DNA used for inserting a foreign gene is called a plasmid. It is a vehicle used in molecular cloning for replicating and expressing the inserted gene in bacterial cells.

Scientists often use bacteria to produce recombinant DNA, which in turn is used to create multiple copies of genes or express proteins. When introducing a foreign DNA into bacteria, the DNA fragment is first inserted into a plasmid. A plasmid is a small circular DNA molecule that can replicate independently of the bacterial chromosomal DNA. These plasmids are also known as vectors as they can carry foreign DNA from one organism to another, and, thus, used as a vehicle for gene cloning. Once inserted, the foreign DNA is replicated along with the rest of the bacterial DNA through the division of the bacterial cells.

Answering the student's question, the small circular piece of bacterial DNA, separate from the main chromosome, into which a foreign gene is inserted is called a plasmid. Therefore, the correct option is B. Plasmid.

B. Bacteria would be your answer

Bacteria are the organisms that convert nitrogen into a form usable by humans. They do this through processes called nitrification and nitrogen fixation. These bacteria often live in symbiosis with plants, aiding their survival while also benefiting the soil.

The organisms that convert nitrogen into a form that is usable by humans are bacteria. Processes like nitrification and nitrogen fixation are key in this conversion. Nitrification involves bacteria converting nitrates (NO₃⁻) to nitrites (NO₂). Nitrogen-fixing bacteria convert nitrogen gas (N₂) into organic compounds which plants and animals can use.

These microorganisms often live in a symbiotic relationship with plants. A good example of this are bacteria of the genus Rhizobium, which live in the root nodules of legume plants such as clover, alfalfa, and peas. The nitrogen converted by these bacteria can be used by these plants to form essential compounds, supporting their survival while also enriching the soil.

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The answer is; Basalt rock

This type of rock is dark-colored due to the high content of magnesium and iron from the lava that forms it. Extrusive basalt rocks are fine-grained due to the rapid cooling of lava on the earth's surface. The basaltic lava is usually of low viscosity to the low silica content. Therefore , this lava flows greater distances before cooling. Basalt comprises approximately 90% of volcanic rocks on earth.

Final answer:

Within a water molecule, atoms are held together by covalent bonds, where the oxygen and hydrogen atoms share electrons. This bond is crucial for the molecule's structure, distinguishing it from hydrogen bonds, which form between different water molecules.

Explanation:

The type of chemical bond that holds the atoms together within a molecule of water is the covalent bond. Covalent bonds are a form of chemical bond where atoms share electrons to achieve a more stable electron configuration. In a water molecule, this bond occurs between the oxygen atom and each hydrogen atom. The shared electrons spend more time closer to the oxygen atom due to its higher electronegativity, creating a partial negative charge near the oxygen and a partial positive charge near the hydrogen atoms. This uneven distribution of charge within the molecule contributes to the formation of hydrogen bonds between adjacent water molecules, but it is important to distinguish that the covalent bond is what holds the atoms together within a single water molecule, while hydrogen bonds are intermolecular forces that occur between water molecules.

The specific type of chemical bond that holds the atoms together within a molecule of water is a covalent bond.

In a water molecule (H₂O), there are two covalent bonds formed between the oxygen (O) atom and the two hydrogen (H) atoms. Covalent bonds involve the sharing of electrons between atoms to achieve a more stable electron configuration. In the case of water, oxygen has six electrons in its outer shell and needs two more to complete its octet. Each hydrogen contributes one electron, forming a shared pair of electrons with the oxygen atom. The sharing of electrons in covalent bonds allows each atom to attain a more stable state by filling its outer electron shell. In water, this results in a bent or V-shaped molecular geometry. It's important to note that the electrons are not transferred from one atom to another, as in ionic bonds, but are shared between the atoms. The strength of covalent bonds is determined by the sharing of electrons, with single, double, or triple bonds representing different levels of electron sharing.

In summary, within a molecule of water, the atoms (oxygen and hydrogen) are held together by covalent bonds, where electrons are shared to achieve a more stable configuration for each atom.

QUESTION

What specific type of chemical bond is responsible for holding the atoms together within a molecule of water?

1. A

2. B

3. A

I am pretty sure this is correct

The two processes that are most responsible for the decrease in the height of the Appalachian Mountains include weathering and erosion.

The statement that explains why earthquakes occur more frequently in California than in Massachusetts is due to the fact that California is located on the boundary of two crustal plates, but Massachusetts is not.

The feature that forms when an oceanic plate has been moving over a hot spot for millions of years is that volcanoes form as lava erupts through the oceanic plate.

It should be noted that erosion and weathering reduce the height of rocks and this can lead to a decrease in the height of the Appalachian Mountains.

In conclusion, the correct options are A, B, and A.

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It would be Interphase, Prophase, Metaphase, and Anaphase

Answer:

A, C, and E

Explanation:

Final answer:

All living things use nitrogen to create amino acids, proteins, and nucleic acids. Nitrogen in the atmosphere is unusable for most organisms until it is fixed by certain microorganisms into compounds like nitrates or ammonia. Plants absorb these compounds and are then consumed by animals, passing the nitrogen through the food chain.

Explanation:

All living things use nitrogen to synthesize important biological molecules necessary for life. Nitrogen is critical for the production of amino acids, which are the building blocks of proteins, as well as nucleic acids such as DNA and RNA. While the atmosphere is approximately 79% molecular nitrogen (N2), this form of nitrogen is largely inaccessible to most organisms because they are unable to break the strong triple bond that N2 molecules possess.

Therefore, the nitrogen must be 'fixed' into a more usable form, such as nitrates or ammonia. This nitrogen fixation is performed by certain microorganisms, including those in the species Rhizobium, which are found in root nodules of legumes, and cyanobacteria present in soil and water environments. Once nitrogen is fixed, plants can absorb it and incorporate it into organic compounds. Herbivores and carnivores then obtain their necessary nitrogen by consuming plant material or other animals.

D = M / V

density = mass / volume

/ = divide