What contribution does DNA make in the formation of an organism?

Answer:

The answer is enzymes..

Answer:

true. Energy cannot be created or destroyed.

Explanation:

Answer:

true

Explanation:

It states Newtons law!

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Chemical energy is stored in a fossil fuel and released in the form of kinetic energy when burned.

Fossil fuels, such as coal, oil, and natural gas, are derived from the remains of ancient plants and organisms that were subjected to high pressure and heat over millions of years.

These fuels contain energy-rich hydrocarbon compounds, primarily made up of carbon and hydrogen atoms. When fossil fuels are burned, the combustion process breaks down these hydrocarbons, releasing stored chemical energy.

This energy is then converted into heat and kinetic energy, resulting in the production of heat, light, and mechanical energy, which can be harnessed for various purposes, such as generating electricity or powering vehicles.

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Answer:

Carrier protein help molecules to move through a cell membrane.

Explanation:

Carrier protein help molecules to move through a cell membrane.

Carrier proteins transport ions and molecules either through facilitated diffusion or by secondary active transport. These proteins also bind to a specific molecule that needs to be transported.

•Difference of 3 domain scheme and 5 kingdom scheme.

Answer:

•There are five kingdoms; monera, protista, fungi, plantae and animalia. On the other hand, all living organisms belong to three domains namely, bacteria, archaea and eukarya. Similarly, domain Eukarya includes protista, fungi, plantae and animalia. Hence, this is the difference between kingdom and domain.

Explanation:

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Answer:

Abiotic: a non-living part of an ecosystem that shapes its environment

biotic: describes a living component of an ecosystem

Explanation:

so abiotic: non living

and biotic: living

Answer:

5. Centrioles

Explanation:

hope im right

Answer:

have a good day bye

Explanation:

Answer:

Some creatures, including cnidarians, octopuses, squid, spiders, sharks, cetaceans, grizzly bears, jaguars, wolves, Sea lion, snakes, turtles, and sea gulls, may have fish as significant if not dominant portions of their diets. The ecological effects of piscivores can extend to other food chains.

Explanation:

Answer:

a tropical location as an area near the equator a temperate location is any area that that lies between the tropical and polar zones and a tundra is the coldest of all the biomes. Tundra comes from the Finnish word tunturi, meaning treeless plain. It is noted for its frost-molded landscapes, extremely low temperatures, little precipitation, poor nutrients, and short growing seasons.

The caruncle is a small, fleshy protrusion that is located at the inner corner of the eye, closest to the nose.

A caruncle is a small, fleshy protuberance or growth that is found on the body of an animal, including a human. In humans, it is made up of modified sweat and oil glands and is responsible for keeping the eye lubricated. The caruncle is also known as the lacrimal caruncle or the medial canthus. It is a normal part of the anatomy of the eye and is present in all humans.

In birds, caruncles are most commonly found on the head and neck and are used for display and communication. In other animals, such as cows and sheep, caruncles may be found on the udder and are used for the production of milk.

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Answer: Small molecules can cross plasma membrane into cells

Explanation:

by simple diffusion as they can be soluble in the hydrophobic region of phospholipid bilayer. Lipophilicity is one of the main parameters that determine cell uptake of small molecules

The dragonflies perch on tree branches in obelisk pose to prevent overheating during the summers.

Overheating is the condition were the body temperature becomes unusually high. This why the dragonflies adapt the obelisk pose where the tip of the abdomen faces directly the sun. This lowers the surface area exposed to the sun and hence overheating is prevented.

Obelisk pose can be used for other purposes as well other than thermoregulation. It can be used by some species of dragonflies to guard their territories and conflict of a male with other males. A modified form of obelisk pose is also used during cold days to warm up the body.

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Answer: Yield

Explanation: Yielding is an important traffic rule that promotes safety and smooth flow of traffic.  It is an important practice that helps maintain order on the roads and promotes safety for all road users. It's essential to be attentive, follow traffic signs and signals, and be aware of the right of way rules in your area to ensure a safe driving experience.

When you yield, you give the right of way to another driver or pedestrian. This means that you let them go first, even if it might inconvenience you or require you to slow down or stop.

Yielding is typically required in situations such as:

Yielding to pedestrians: When you approach a crosswalk or intersection where pedestrians are waiting to cross, you should yield to them and allow them to safely cross the road before you continue to drive.  Drivers must yield to pedestrians within a crosswalk.  

Yielding at intersections: When you approach an intersection where there are other vehicles, you should yield to those already in the intersection or approaching from the right. This helps prevent accidents and ensures a smooth flow of traffic.

Yielding when merging: When merging onto a highway or another lane, you should yield to the vehicles already in that lane. This allows for a safe and efficient merging process.

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Answer:

The correct answer is A. Since the Earth has a tilted angle of 23.5 degrees as it moves around the sun, the amount of sunlight that is received by the hemispheres vary from time to time. This is mainly responsible for the changes in the temperature and daylight hours, which are the indicators of the changes in seasons.

In this case, when one hemisphere of the Earth is tilted toward the sun, it receives more sunlight than the other end. Therefore, this region experiences summer, wherein the daylight is longer and the temperature is warmer

This question is incomplete because the options are missing; here is the complete question:

Lions and cheetahs prey on wildebeests that graze in the grasslands of the African savanna. What likely effect would increased rainfall over several rainy seasons have on the populations of wildebeests, lions, and cheetahs?

A. All three populations would increase.

B. The wildebeest population would decrease, and the lion and cheetah populations would increase.

C. The wildebeest population would increase, and the lion and cheetah populations would decrease.

D. All three populations would decrease.

The answer to this question is A. All three populations would increase

Explanation:

Grass, wildebeests, lions, and cheetahs are part of the same food chain and due to this a change in grasses due to rainfall will affect the other species. In this context, an increase in the rainfall is likely to increase the availability of grass because grasses thrive and develop better with more rainfall. This change would cause the population of wildebeests to increase due to an increase in the availability of food. At the same time, it is likely cheetahs and lions increase because similar to wildebeest these species will have more food available, which makes it easier to survive and reproduce. This means in this situation the three populations would increase.

Answer:

All three populations would increase.

Explanation:

In animal cells, the primary organelle that generates molecules of ATP is the mitochondrion, (option D) it is where cell respiration takes place.

The ribosomes are the responsible of protein synthesis.

Lysosomes's main function is to degrade waste thanks to enzymes inside them.

The golgi body or apparatus helps to process proteins and lipids, for example by sending them to the organelle where they make their function.

It is widely accepted that the most recent common ancestor of all eukaryotes had mitochondria

The idea that the most recent common ancestor (MRCA) of all eukaryotes had mitochondria that evolved from bacteria is widely accepted in the scientific community. This idea is based on evidence from molecular biology, comparative genomics, and phylogenetic analysis.

Mitochondria are the organelles responsible for energy production in eukaryotic cells. They are thought to have evolved from a free-living aerobic bacterium that was engulfed by an ancestral host cell in an endosymbiotic event. This process is believed to have occurred over a billion years ago.

The evidence supporting this theory comes from several sources. Firstly, mitochondria have their own DNA, which is circular like that of bacteria and is similar in size to the DNA of some bacterial species. Additionally, the DNA of mitochondria is more similar to that of bacterial DNA than to the DNA of eukaryotic nuclei.

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Answer: They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. Cells also contain the body's hereditary material and can make copies of themselves

The feature that you would expect to see in the flowers of wind pollinated plants is simple flowers that make massive quantities of pollen. Wind pollinated plants do not rely on attracting pollinators through the use of brightly colored or fragrant flowers.

Instead, they produce a large amount of small, lightweight pollen that can be easily carried by the wind to other plants. This is why wind pollinated flowers tend to be simple in structure and do not have showy petals or strong fragrances. The other options listed, such as large, fragrant, white flowers or red flowers with long nectar tubes, are more commonly associated with insect pollinated plants, which rely on attracting specific pollinators to their flowers.

Wind pollinated plants typically have simple, inconspicuous flowers that produce a large amount of pollen. This is because the wind carries the pollen from one flower to another, and a greater quantity of pollen increases the chances of successful pollination. These plants do not rely on visual or scent cues to attract pollinators, so they generally do not have large, colorful, or fragrant flowers.

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The most likely organism alive today that is most similar to the first life forms that evolved on Earth is cyanobacteria. The correct option is b.

Cyanobacteria are prokaryotic organisms that belong to the domain Bacteria. They are believed to be one of the earliest forms of life on Earth and played a crucial role in shaping the planet's atmosphere. Cyanobacteria are photosynthetic, meaning they have the ability to convert sunlight into energy through photosynthesis, just like the early life forms that emerged billions of years ago.

Methane-producing archaeans, although also ancient and diverse, are a separate domain of life known as Archaea. While they are capable of surviving in extreme environments and have distinct biochemical processes, they are not considered the most similar to the earliest life forms.

Dinosaurs and humans are part of the animal kingdom, which emerged much later in Earth's history. Dinosaurs appeared around 230 million years ago, while humans are relatively recent, with the earliest Homo sapiens appearing around 300,000 years ago.

In summary, cyanobacteria, with their early appearance in Earth's history and photosynthetic capabilities, are the organisms alive today that are most likely to be similar to the first life forms that evolved on Earth. Therefore, the correct option is b.

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The correct option is D mucosa, submucosa, muscularis, and adventitia/serosa.

The mucosa, the innermost layer, is responsible for the secretion of digestive enzymes and lubricating fluids that aid in the passage of food through the GI tract.

The submucosa, the second layer, consists of connective tissue containing blood vessels, lymph vessels, and nerves that supply nutrients and oxygen to the surrounding tissues.

The muscularis layer, the third layer, is further divided into three layers: the inner circular layer, the outer longitudinal layer, and the middle oblique layer.

These layers work together to provide the necessary muscular contractions for the movement of food along the GI tract.

The outermost layer, known as the adventitia or serosa, is made up of connective tissue and provides protection to the organs of the GI tract.

In summary, the four layers of the GI tract wall—mucosa, submucosa, muscularis, and adventitia/serosa—play distinct roles in the digestive process, ensuring the efficient breakdown and absorption of nutrients while providing structural support and protection to the organs involved.

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The human genome's ability to produce hundreds of thousands of proteins with only around 25,000 genes is achieved through a process called alternative splicing.

Alternative splicing is a fundamental mechanism in which a single gene can generate multiple protein variants. Genes consist of exons (coding regions) and introns (non-coding regions). During transcription, the DNA sequence of a gene is transcribed into a precursor messenger RNA (pre-mRNA) molecule. This pre-mRNA contains both exons and introns. However, before translation into a protein, the introns are spliced out, and the exons are joined together.

The fascinating aspect is that different combinations of exons can be selected during splicing, leading to the production of distinct mRNA molecules and, consequently, different protein isoforms. This process enables the human genome to create a diverse array of proteins despite a limited number of genes.

Alternative splicing allows for the inclusion or exclusion of exons, as well as the possibility of exon skipping or joining different exons together. This flexibility provides a rich source of variation in the resulting proteins, influencing their structure, function, and regulation.

Additionally, alternative splicing can occur in tissue-specific or developmental stage-specific manners, contributing to the complexity and diversity of protein expression in different cells and tissues.

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Answer:

A

Explanation:

Homeostasis is the maintaining of internal conditions. Answer A is correct because it is maintaining internal conditions which is the blood temperature.

The structure located between the superior and medial borders is known as the parasternal lymph nodes. These lymph nodes are a group of nodes present on either side of the sternum.

They are an important part of the lymphatic system and play a significant role in the immune response. The parasternal lymph nodes are responsible for receiving lymphatic drainage from the breasts, thoracic wall, diaphragm, and pericardium. These lymph nodes drain into the bronchomediastinal lymph trunk and subsequently into the thoracic duct.

The lymph nodes filter lymph and help to remove pathogens and other harmful substances from the body. They contain immune cells such as lymphocytes and macrophages, which help to identify and attack foreign invaders that enter the body.

Thus, the parasternal lymph nodes are an important part of the immune system and play a vital role in protecting the body against disease.

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Genetic diversity is a measurement of the differences in DNA sequences (nucleotide sequences) between two or more organisms. Species diversity indicates the number of species in a community.

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Answer:

I believe the answer is false

Explanation:

Answer:

false

work is like tying to reach a goal by working for it,

but effort is putting %100 into something.

i am so so so so so sorry if it is rong.

answer

IV-music

DV-baskets in 10 mins

control-the day no music was played

step by step

IV is the variable being adjusted to achieve variety of results

DV is the counts that will depend on the music played

control with no music only one variable was being tested the counts so a control is where one variable is being tested