what causes lung cancer​

Answer:

As carbon dioxide concentrations increase, so too does the rate of photosynthesis until a certain point where the graph levels off. At lower carbon dioxide concentrations carbon dioxide is the limiting factor because an increase in carbon dioxide causes an increase in photosynthesis.

Explanation:

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Nutrients and ions can pass directly from cell to cell through special membrane junctions known as gap junctions.

Gap junctions are structures composed of transmembrane proteins that enable communication between cells. They are found in most animal cells and play a critical role in the coordination of cellular activities.

Gap junctions are important for maintaining homeostasis in the body. They allow for an exchange of ions, metabolites, and other molecules between cells. This process helps to maintain a balance of nutrients and ions throughout the body. Gap junctions are also involved in the coordination of cellular activities such as cell growth, differentiation, and cell migration.

Gap junctions are composed of two connexons, or hemichannels. The connexons are composed of six transmembrane proteins, referred to as connexins. The connexins form a channel between the two cells, allowing for the exchange of small molecules and ions. The connexons can open and close in response to a variety of external and internal signals, allowing for a tightly regulated exchange of materials.

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Answer:

In animals, the process of respiration is aerobic respiration, exchange of gases takes place ( carbon dioxide leaving the cell, oxygen entering)

Single cellular organisms can exchange gases directly across their cell membrane through the process o diffusion.

Large animals cannot maintain gas exchange by diffusion across their outer surface. A respiratory surface is covered with thin, moist epithelial cells that allow oxygen and carbon dioxide to exchange. Those gases can only cross cell membranes when they are dissolved in water or an aqueous solution, thus respiratory surfaces must be moist.

Explanation:

Answer:

so that carbon dioxide and oxygen can exchange

Explanation:

Those gases can only cross cell membranes when they are dissolved in water or aqueous solution.

Answer:

Here to help!

Explanation:

Species diversity, genetic diversity, ecosystem diversity, functional diversity. biodiversity. the variety of the earth's species, the genes they contain, the ecosystems in which they live, and the ecosystem processes of energy flow and nutrient cycling that sustain all life!  Biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play. For example, a larger number of plant species means a greater variety of crops; greater species diversity ensures natural sustainability for all life forms; and healthy ecosystems can better withstand and recover from a variety of disasters.

A BRCA gene mutation is an alteration in the genes that produce the proteins responsible for DNA repair. These proteins are essential for maintaining the integrity of the cell’s DNA and for preventing cancer.

The presence of a BRCA mutation increases the risk of developing certain types of cancer, such as breast, ovarian and prostate. Women with a BRCA mutation have up to an 85 percent risk of developing breast cancer, and up to a 60 percent risk of developing ovarian cancer. Prostate cancer is more likely to affect men who have a BRCA mutation.

A BRCA mutation can also be inherited, meaning that it can be passed from one generation to the next. Genetic testing is available to determine if a person has a BRCA mutation, and if so, to identify the specific mutation. This information can help to inform decisions about cancer screening and preventive measures.

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Humans belong to the group of mammals known as placental mammals, because the developing embryo grows within the mother before a live birth.

Placental mammals are any of a group of mammals in which the embryo and later the fetus, is nourished in the uterus by an organ called the placenta. The placenta is an organ that attaches the embryo to the uterine wall and is the site of exchange between the mother’s and the fetus’s blood in order to provide nourishment to the developing fetus.

Placental mammals are the most highly evolved group of mammals and include monkeys, apes, and humans. In contrast to other mammals, such as marsupials whose embryos are nourished in the uterus for a short time before being born, placental mammals develop within the mother until they are fully developed. This prolonged period of development in the mother gives the fetus time to fully develop its organs and to grow to a larger size before birth.

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Answer:

K.Y.S

I  O E

S U L

S R F

Explanation:

Answer:

Osmosis is the movement of solvent particles across a semipermeable membrane from a dilute solution into a concentrated solution.

Explanation:

Diffusion is the movement of particles from an area of higher concentration to lower concentration. The overall effect is to equalize concentration throughout the medium.

Answer: sorry i acidentally answered ur question TT u can report me po

Explanation:

Based on the most recent data, gamma ray bursts are real. All of them occurred in far-off galaxies that we have found. There doesn't appear to be any other illumination that we can expect to detect from the sources of gamma ray bursts; they solely appear to emit gamma rays.

Now, scientists are aware that "long bursts"—those lasting longer than two seconds—make up the great bulk of gamma-ray bursts. They are supposed to happen when a large star has run out of fuel. The star's core disintegrates into the a black hole when there is nothing to stop it from being crushed by its own gravity.

Directly directed gamma-rays would cause the ozone layer and a sizeable section of Earth's atmosphere to be destroyed. Photochemical haze would result from the chemical reactions that the burst's photons would trigger. This would significantly reduce the amount of cosmic ray protection we have.

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Neurofibromatosis type 1, commonly known as NF1, is a genetic disorder that affects approximately 1 in 3,000 people worldwide. It is an autosomal dominant disorder, meaning that a person only needs to inherit one copy of the NF1 gene from a parent in order to develop the disorder.

Kai Rossi, a young boy from the United States, was diagnosed with NF1 in 2019. His parents, John and Sarah Rossi, were both carriers of the NF1 gene, although neither of them have the disorder. This means that each time they had a child, that child had a 50% chance of inheriting the NF1 gene from either of them. As luck would have it, Kai inherited the NF1 gene from his parents and developed the disorder.

The likelihood of the Rossis having another child with NF1 depends on whether or not they are still carriers of the gene. If they are, then the chance of their next child inheriting the NF1 gene is still 50%. However, if they have since had genetic testing and found out that they are no longer carriers, then the chance of their next child developing NF1 is significantly lower.

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The Design of Solution that Describe steps you could take to develop an deductive method for copying San Francisco sourdough bread is given below:

In Research: The first step in developing an effective method for copying San Francisco sourdough bread is to research the traditional methods and techniques used to make this type of bread.

Experiment with Sourdough Starter: Next, you will need to experiment with different types of sourdough starter to find one that is similar to the starter used in San Francisco sourdough bread.

Experiment with Flour and Hydration: Once you have a starter that you are happy with, you will need to experiment with different types of flour and different hydration levels to find the right combination for your bread.

Mixing and Fermenting: Once you have your flour and hydration levels sorted, you will need to start mixing and fermenting your dough.

Shaping and Baking: Once your dough is fermented, you will need to shape it and prepare it for baking.

Evaluate and Adjust: Once your bread is baked, you will need to evaluate it and make any necessary adjustments.

Lastly, Repeat and refine: Repeat the process of making the bread and take note of the variations and results each time. Refine the process by making adjustments and tweaking the steps until you are satisfied with the end product.

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Answer:

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Explanation:

kndjd

Ordovician end (444 million years ago; mya), Devonian, late (360 mya), Final Permian (250 mya), People frequently confuse the end of the Triassic period (200 mya) for the extinction of the dinosaurs.

End of the Cretaceous (65 million years ago), the dinosaur extinction catastrophe. The primary reason for contemporary extinctions is habitat destruction.

Permian and the beginning of the Triassic periods, some 250 million years ago, Earth went through its worst environmental catastrophe ever.

The crater's diameter and depth are estimated to be 180 kilometers (110 miles) and 12 miles.

Therefore, around 252 million years ago, the end of the Permian epoch was marked by the greatest extinction in Earth's history.

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Answer: look that junk up

Explanation:

Assume that a new species of fish has been discovered deep in the ocean. It has a complete vertebral column made of cartilage therefore the class which the new species will be placed in is Chondrichthyes and also have cartilaginous endoskeleton.

They are referred to as a class that contains the cartilaginous fishes that have skeletons primarily composed of cartilage and examples include sharks, whales etc.

They usually have a pair of jaws and are found in marine environment. the presence of calcium salts in this type of environment is what gives rise to them having cartilages as their vertebral column and endoskeleton which are the features present in fishes under this class and is therefore the reason why it was chosen as the correct choice.

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The humerus' greater tubercle is more medial than its smaller tubercle. It is positioned posterolateral to the humerus' lesser tubercle and laterally to the humerus' head. At the posterolateral side of the shoulder, one may feel the larger tubercle, which is the humerus' most lateral bony point.

Even though it is smaller, the lesser tubercle is more noticeable than the greater one since it is located in front and faces medially and forward.

Two the rotator cuff muscles join to the greater tuberosity, a "bump" of bone near the top of a humerus. Because of this relationship, a fracture may also affect how well the rotator cuff functions.

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When dissecting a mammalian kidney in your lab Coronal plane is recommended plane of section to view the majority of the internal structures.

In vertebrates, the kidneys are two reddish-brown, bean-shaped organs. They are situated on the left and right sides of the retroperitoneal region. Blood enters them through the paired renal arteries, and it leaves through the paired renal veins. A ureter, a tube that transports expelled urine to the bladder, is connected to each kidney.

The kidney takes involved in the regulation of toxin elimination, fluid osmolality, acid-base balance, various electrolyte concentrations, and volume of various body fluids.

Anatomically, the body is divided into dorsal and ventral parts by the coronal plane. It is parallel to both the transverse and sagittal planes.

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Answer:

a. recessive

Explanation:

Usually, If there is a dominant gene allele, you can have just one of a dominant gene and it will still show. Knowing that you needed two copies, the red hair is most likely a recessive allele.

Answer:

A is your answer

Explanation:

Answer:

Water evaporates from the Earth's surface and goes up into the atmosphere where it condenses. So while water can be considered renewable given its natural life cycle, in our daily life we should consider it a precious and limited resource.

Explanation:

Answer:

Water evaporates from the surface of the Earth and rises into the atmosphere, where it condenses. So, while water can be considered renewable due to its natural life cycle, we should consider it an important and valuable resource in our daily lives. Water, whether drinkable or not, is renewable. It can be naturally cleaned by the water cycle and made drinkable again. Furthermore, water is a renewable energy source.

Explanation:

A dichotomous key is a tool that can be used to identify organisms or objects in the natural world, such as plants, animals, or rocks. The dichotomous key for the given question is as follows in the explanation part.

A dichotomous key may be characterized as a type of key that is significantly utilized for the identification of organisms based on a series of choices between alternative characters.

Therefore, the dichotomous key for the given question is well described above.

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Errors in replication, exposure to ultraviolet radiation and exposure to chemicals are some factors that increase the chance of a genetic mutation happening in your cells.

A mutation or a genetic mutation is basically a change in the DNA sequence of a gene which leads to the production of something different. It  is able to create a permanent change to that particular gene's DNA sequence. Genetic variations are although important as they allow evolution in humans. They can also sometimes cause genetic disorders.

Replication is the process by which the DNA replicates itself. Sometimes errors happen in replication which can change the sequence of the DNA and cause mutations. Exposure to some environmental chemicals and also to ultraviolet radiation can cause mutation and alter the DNA sequence.

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Answer:

herbivores

Explanation:

Primary consumers make up the second trophic level. They are also called herbivores. They eat primary producers—plants or algae—and nothing else.

The land area in acres that can support 15000 trees is 75 acres.

The land area in acres that can support 15000 trees is calculated as follows:

mass of CO₂ emitted by a cement factory emits to produce 1,000 kilograms of cement = 900 kilograms of CO₂

A fully grown tree removes six kilograms of CO2 per day from the air.

One acre of land can support 200 mature trees.

Since the owners need to grow 15000 trees, the area of land required will be:

The area of land required = 15000 trees * 1 acre / 200 trees

The area of land required = 75 acres

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Answer: Vacuoles

Explanation:

Answer:

Explanation:

The membrane-bound compartment indicated by structure D contains  is d)nucleic acids.So,correct option is d.

Nucleic acids are biopolymers, macromolecules, vital for all known types of life.[1] They are made out of nucleotides, which are the monomers made of three parts: a 5-carbon sugar, a phosphate bunch and a nitrogenous base. The two fundamental classes of nucleic acids are deoxyribonucleic corrosive (DNA) and ribonucleic corrosive (RNA). On the off chance that the sugar is ribose, the polymer is RNA; assuming the sugar is the ribose subordinate deoxyribose, the polymer is DNA.

Nucleic acids are regularly happening engineered combinations that go about as the fundamental information passing on particles in cells and make up the genetic material. Nucleic acids are found in flood in each and every living thing, where they make, encode, and subsequently store information of every single dwelling cell of every single life-structure in the world.

Hence, correct option is d.

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(Complete question) is:

The membrane-bound compartment indicated by structure D contains which of the following?

a)ribosomes

b)oxidases and catalases

c)hydrolytic enzymes

d)nucleic acids