how do humans obtain the nitrogen they ues in their bodies

Answer:

im not sure i really wish I could help

Explanation:

False! Climate change

The Earth used to be way colder than it is today

A minute cylindrical organelle near the nucleus in animal cells, occurring in pairs and involved in the development of spindle fibers in cell division.

A centriole is a cylindrical organelle composed mainly of a protein called tubulin found in most eukaryotic cells.  The main function of the centriole is to help with cell division in animal cells. The centrioles also help in the formation of the spindle fibers that separate the chromosomes during cell division. They are made of nine triplets of microtubules arranged in a cylinder.

Hope this helps!

Answer:

Option A, oxygen in the atmosphere

Explanation:

The highest level of oxygen reached during this phase of the geological cycle of earth. The oxygen level in  Carboniferous  period accounted for 35%  as compared to 21% of oxygen in the atmosphere in present time.

Due to high oxygen content, the giant and wide varieties of terrestrial animal and plant species evolved. For example – size of insects and carwlies increased, plant became extremely giant, increase in number of tree ferns etc.

During the Carboniferous period, plants and animals grew very large due to high concentration of oxygen in the atmosphere and the correct option is option A.

The Carboniferous period is a geologic period and system that spans from 358.9 to 298.9 million years ago in the Paleozoic Era. It is named after the Latin word "carbo", meaning coal, as this period saw the formation of large coal deposits. The Carboniferous period is also known as the "Age of Amphibians" due to the dominance of these animals on land.

During the Carboniferous period, the Earth's continents were slowly coming together to form the supercontinent Pangea. This led to a warm and humid climate, which was ideal for the growth of swamp forests. These forests were home to a wide variety of plants and animals, including amphibians, reptiles, and insects.

Thus, the ideal selection is option A.

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I think the answer you’re look for is (a) hybrid

A hybrid is the offspring of two different species and is often infertile due to differences in genetic instructions from each parent. The ability of species or hybrids to reproduce and the fitness of the offspring can impact species evolution over time. Being part of the same species is defined by the ability to breed and produce fertile offspring.

The offspring of two different species, such as a liger, are referred to as a hybrid. Hybrids are produced when individuals from two separate species interbreed. Often, these hybrids are infertile, meaning they cannot produce offspring themselves. This is due to differing genetic instructions from each parent species, which may interfere with the development of viable offspring. This characteristic of infertility among hybrids is noticeable in the example of a liger, a hybrid between a lion and a tiger.

However, there are situations where the hybrid offspring are more fit than the parents. In such circumstances, reproduction could continue between the species and the hybrids, potentially leading to a merging of the two species. The fit of hybrid creatures compared to their parents can impact how species evolve over time.

It's worth noting that being part of the same species is normally defined by the ability to breed and produce fertile offspring. Therefore, although two organisms may appear similar or even virtually identical, such as bald eagles and African fish eagles, they are confirmed as separate species due to their inability to produce fertile hybrids.

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The visible light spectrum ranges between Infrared Rays and Ultraviolet Rays. I hope this helps you :)

the answer is from infrared ray and ultraviolet rays

They may have shared the same matter.

The incorrect step in the rock cycle is 'Sediments melt deep beneath Earth's surface' because sediments do not melt to form magma; solid rocks do when subjected to high heat.

The step in the rock cycle which is not correct is: D. Sediments melt deep beneath Earth's surface. During the rock cycle, sedimentary rocks, igneous rocks, or metamorphic rocks may be subjected to heat and pressure to become metamorphic rocks, or they may melt to form magma.

However, it is not sediments that melt to form magma; rather, it is existing solid rocks that melt due to high heat.

In the rock cycle, sedimentary rocks are typically formed when rocks on Earth's surface break down into small pieces that are then compacted and cemented together. Igneous rocks form when magma or lava cools and hardens.

Metamorphic rocks are created when existing rocks are subjected to great heat and pressure, but without melting. These processes are continuous and over time, rocks can transform from one type to another, driven by Earth's geological forces.

The correct answer is C. Beeswax.

I hope this helps! : )

Answer:

they're called trace fossils

The are arthropods. They are arthropods because they undergo ecdysis, have segmented bodies and the key trait of jointed limbs “arthro”=jointed and “pod”=foot

Robber crabs are arthropods that are considered so because, as adults, they have a thick exoskeleton inside their shell.

Invertebrates are defined as the paraphyletic group of animals which neither possess nor develop a vertebral column derived from the notochord. It includes all animals other than the chordate subphylum Vertebrata.

They range in size from microscopic mites and nearly invisible flies to giant squids with soccer-ball-sized eyes, which are by far the largest group in the animal kingdom, accounting for 97 percent of all animals. These group includes spiders, worms, snails, lobsters, crabs and insects like butterflies.

Robber crabs have jointed legs like all arthropods, which is why they fall into this category.

Thus, Robber crabs are arthropods that are considered so because, as adults, they have a thick exoskeleton inside their shell.

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Answer:

For a simple machine.

Explanation:

Generally,  you would call the instance of having great output force when inputing a smaller force - a mechanical advantage.

Answer:

A

Explanation:

The light energy from sunlight in photosynthesis is used to split the water molecule into H+ and O2-. The H+ is then used to reduce NADP+ to NADPH.  Through photophosphorylation, the energy from the sun is also used to make ATP from ADP. As the electrons are passed from one protein to the other in the chain, the energy released is what is used to create ATP.

Oxygen is evolved out as a byproduct

NADP+ + 2e- + 2H+  -->  NADPH + H+

The ondes that need the presence of light to occur are A. ATP and NADPH

The end products of the light-dependent reactions in photosynthesis, which require the presence of light, are ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate). These products serve as energy carriers that are subsequently used in the light-independent reactions (also known as the Calvin cycle) to produce carbohydrates.

Option B is incorrect because oxygen is produced as a byproduct of the light-dependent reactions, not as an end product that is utilized within the process. ADP (adenosine diphosphate) and NADP+ (nicotinamide adenine dinucleotide phosphate) are converted to ATP and NADPH, respectively, during the light-dependent reactions.

Option C is incorrect because phosphorus and sugar are not the primary end products of the light-dependent reactions. While the production of sugars occurs during the light-independent reactions, phosphorus is not directly involved in the light-dependent reactions.

Option D is incorrect because carbon dioxide and nitrogen are not end products of the light-dependent reactions. Carbon dioxide is utilized in the light-independent reactions to synthesize sugars, and nitrogen is typically not directly involved in the light-dependent reactions of photosynthesis.

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Answer:

energy, heat

Explanation:

Only a part of the energy stored in a trophic level goes to the next level since the different organisms that process the energy consume it to perform their vital processes. The rest of the energy is released into the environment in the form of heat:

D) All of the above

d. all of the above

TwT

I think so but I’d double check somehow I’m pretty sure it’s yes if you can’t find anything

Answer:

Recombinant DNA (rDNA) molecules are DNA molecules formed by laboratory methods of genetic recombination (such as molecular cloning) to bring together genetic material from multiple sources, creating sequences that would not otherwise be found in the genome.

SOURCE FROM: https://en.wikipedia.org/wiki/Recombinant_DNA

Answer:

Shakespeare uses the war of words to show that these men of power destroyed the Republic; rhetoric has been replaced by petty insults.

Explanation:

Ventricles pump the blood outa heart...

Left ventricle pumps it through aorta to organs

And right ventricle pumps it to lungs to get oxygen

Answer:

Answer: A ventricles

Explanation:

:)

Cell respiration is the process

Answer:

On my test it was respiration

Explanation:

Answer:

An epiphyte is a type of plant that grows on another plant. However this plant should not be confused with a parasitic plant. Epiphytes obtain nutrients from the air and dust around them, not affecting the host plant.

Explanation:

Epiphytes are plants that grow on other plants for physical support without extracting nutrients from the host, utilizing moisture and nutrients from the air and debris instead. Examples include many orchids and bromeliads like "Spanish moss".

The phrase that best describes a plant that is an epiphyte highlights its unique lifestyle of growing on other plants without relying on them for nutrition. Epiphytes utilize the host plant merely for physical support while deriving moisture and nutrients from the air, rain, and debris accumulation. Common examples include many orchids and bromeliads (e.g., "Spanish moss"), showcasing the incredible adaptability of these plants to their environment by developing specialized aerial roots for nutrient absorption and moisture capture.

Answer:

The Moon rises and sets every day, like the Sun. ... But the Moon is orbiting around the Earth; every day, it moves eastwards (further left from the Sun) by about 12 degrees. This means that it increasingly lags behind the Sun, by about 50 minutes a day. i hope this helps

Explanation:

Answer:

(A) The immune system must attack the body's own cells.

Explanation:

(Apex)

Viral infections are caused by certain viruses either by direct or indirect contact. It can be difficult to kill viral infections because of slow working macrophages, i.e., option B.

Macrophages are types of WBCs, i.e., white blood cells that are usually surrounds and kill the invaded pathogen.

Due to slow working of macrophages it can be difficult to kill the invaded pathogens, and hence make it difficult to defeat viral infections.

Thus, the correct option is B.

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Answer:

Availability of sunlight.

Explanation:

Some living organisms need a lot of sunlight to survive and cannot stand living in the shade, as is the case with some plants. In this case, the availability of sunlight presents itself as an environmental factor that will influence natural selection, because with less availability of sunlight, the less adapted organisms will die and the more adapted organisms will resist and pass this trait to their descendants.

Natural selection tends to decrease genetic variability because only a few genotypes will be selected. In addition, it also contributes to the permanence of a certain characteristic in the population.

The process of being selected by the nature to survive in the current condition is called natural selection. Only those species can be naturally selected who are ready to change and adapt themselves according to environmental needs.

These are the factors that support natural selection.

Many species are not able to mate with the other species due to geographical barriers and also not being able to migrate to other habitats.  

For example- Australia is separated from the other continents, the marsupials are only restricted to the specific landmass and are not able to mate with other animals from other countries.

Increases in temperature harm cold-blooded animals. They can not able to maintain the normal body temperature and lead to the death

Therefore, The factors which affect natural selection are geographical barriers and a rise in temperature.

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Yes, the specific heat capacity of substances change when there is a change in temperature. At molecular level, the internal energy of a substance is stored in form of translational, rotational and vibrational energy. It has 3 degrees of freedom for each form of energy. In lower temperature ranges, say below 1000 degree celsius, vibrational energy is insignificant.

monosaccharides, disaccharides, polysaccharides

Final answer:

Carbohydrates are made of monomers called monosaccharides, which include hexose sugars like glucose, fructose, and galactose, as well as pentose sugars like ribose and deoxyribose.

Explanation:

Carbohydrates, commonly known as saccharides, are made up of monomers called monosaccharides. The simplest form of carbohydrates, monosaccharides are single sugar units that can join together to form more complex carbohydrates.

The most common monosaccharides include the hexose sugars like glucose, fructose, and galactose, all of which contain six carbon atoms. Additionally, there are pentose sugars such as ribose and deoxyribose, which contain five carbon atoms and are found in the nucleic acids DNA and RNA.

These monosaccharides are the basic building blocks for more complex carbohydrates like disaccharides, which consist of two monosaccharide units, and polysaccharides, which are polymers made up of countless monosaccharide monomers bonded together through a process called dehydration synthesis. The reverse process, hydrolysis, breaks polymers back into monomers.

Answer:

The answer is C

Explanation:

Because the earth's surface is made up of different types of land and water, it absorbs the sun's heat at different rates. One example of this uneven heating is the daily wind cycle.

Answer:

C. (Wind is caused by uneven heating of the earth).

Explanation:

Have a good day :)

Answer:

c

Explanation:

the correct answer is c

hopes this helps

The answer is c. production of waste

Component molecules assemble in different ways to form the basic units of carbs and protein. In carbs, that basic unit is a saccharide, another word for sugar. Monosaccharides are single-unit sugars, the simplest carbs. These can link up with each other to form two-unit sugars -- also known as disaccharides -- or polysaccharides, which can be hundreds of units in length. In contrast, amino acids are the basic units of proteins. Approximately 20 types of amino acids act as your body's primary protein building blocks. They can assemble in very complex ways to form helices, pleated sheets, globules or even multi-unit protein structures.

While protein's primary role is structural, carbohydrates primarily serve as an energy source. In fact, glucose -- one of the simplest carbohydrates -- is your body's preferred energy currency. Whenever your body derives energy from protein because of a low supply in carbs, protein components must undergo a number of biochemical changes to be useful in energy production. Proteins serve above all as your body's building blocks. Every cell needs them for structure, but they also play important roles as molecule transporters, hormones, disease-fighting agents and enzymes Some carbs -- namely fiber -- are important for bowel health and waste elimination

Carbohydrates are the major source of energy to our body while proteins are the building blocks of our body.

The main source of energy of our body are carbohydrates on the other hand, proteins act as the building blocks of our body. Carbohydrates and proteins are important macromolecules. Carbohydrates are composed of simple sugars and proteins are composed of amino acids.

Carbon, hydrogen and oxygen are the main elements of carbohydrates and proteins contain Carbon, hydrogen and oxygen, Sulphur or Nitrogen. Carbohydrates are broken down to make glucose to fuel the body and all enzymes, many hormones and many neurotransmitters are proteins.

As a result, this is how functions of proteins differ from the functions of carbohydrates.

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Answer:

C

Explanation:

Adaptation makes you body adjust too your environment so you can survive. As animals do!!!

Answer:

c

Explanation: