HELPP!!!


According to the definition of Natural Selection, which of these

organisms is likely to survive?


A- An organism that inherited features that they can and cannot use.


B- An organism that will benefit the Consumers.


C- An organism with adaptations best suited for their environment.


D- An organism that has the greatest number of offspring.

The function of a specific enzyme is most directly influenced by its 'physical shape'.

What do you mean by enzymes?

Enzymes are basically proteins that act as catalysts, speeding up chemical reactions in the body. They are essential for life and are involved in many of the body's processes, such as digestion, metabolism, and energy production.

The physical shape of an enzyme is determined by its specific sequence of amino acids, which forms its active site. This active site is the part of the enzyme that binds to substrates and facilitates chemical reactions. The physical shape of an enzyme determines what substrates it can recognize and bind to, which in turn influences the rate at which the reaction occurs. Therefore, the physical shape of an enzyme directly affects its function.

Hence, Option B is correct.

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Answer:

Antibiotic resistance is when pathogens such as bacteria or fungi develop a resistance to antibiotics. This happens when some pathogens die, and others survive. The small number of pathogens that had a resistance to the antibiotic will reproduce more offspring that are also resistant to, and those offspring will reproduce even more offspring and so on. Eventually most pathogens will be resistant to the antibiotic, so antibiotics won't work.

Mendel conducted research on inheritance using peas. Peas were selected because they had previously been used in research that was comparable, because they are simple to cultivate, and because they can be replanted annually.

Pea flowers typically self-pollinate because they contain both male and female parts, which are referred to respectively as stamen and stigma. Because of the process of self-pollination, offspring can be produced from a single plant even though the flowers do not open until later. Peas can also be manually cross-pollinated.

To do this, simply open the pea flower buds, remove the pollen-producing stamen, and then apply pollen from one plant to the stigma of another plant. This will prevent the peas from pollinating themselves.

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No, Colin's evidence is not relevant to his claim.

Since drone flying is a sport rather than a concern for privacy, Colin's evidence does not support his allegation. Colin gives evidence that is connected to the idea that flying drones is a sport by noting that coordination and technical abilities are required to fly drones. Instead of focusing on giving evidence that supports the idea that drones do not negatively affect people's privacy, Colin offers evidence that is related to the idea that flying drones is a sport. It follows that his argument is weak because it has not been adequately substantiated.

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Answer:

Healthy volunteers in phase 1 clinical trials are used for the development of safe drugs and other biologics by accepting the possibility of risks from study participation without anticipated health benefits from the investigational products. The incidence of serious adverse events is low.

The sickle-cell gene does not benefit anyone in the United States, but it may be very advantageous to someone living in rural Zambia, Africa because Malaria is rare in the United States

Sickle cell disease: A group of disorders in which

red blood cells deform and collapse. In sickle cell disease, a group of inherited disorders, red blood cells twist and sickle. Cells die prematurely, lacking healthy red blood cells (sickle cell anemia) and can block blood flow and cause pain (sickle cell disease).

In parts of Africa where malaria is common, the sickle cell disease mutation confers a health benefit to carriers (protection from malaria). HbS carriers were naturally selected in these regions because their traits confer some resistance to malaria. Red blood cells with abnormal hemoglobin tend to sickle when infected with the malaria parasite.

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The three types of point mutations are: addition, deletion and substitution. The effect of these mutations is that the gene sequence is altered that results in variation in gene expression.

Point mutations are the type of mutations where the change in the genetic sequence is due to alteration of a single nucleotide. This change can be the addition, deletion or substitution of the nucleotide. This can however change the entire sequence for the gene expression.

Gene expression is defined as the process by which the genetic information is converted into a functional form that can produce the results inside the body. These processes are transcription and translation.

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Answer: B) the angle of insolation is high

Explanation:

During that time the Earth is facing the sun at a closer angle. So the chances of incoming solar radiation will be higher.

In New York State, the risk of sunburn is greatest between 11 a.m. and 3 p.m. on summer days because  the angle of insolation (incoming solar radiation) is high. The correct answer is option B.

The duration of sunlight reaching the Earth is approximately 9 seconds.

Angle of insolation is defined at the angle at which the sun's rays strike a particular surface on Earth in order to receive the sun rays and get the heat out from  the sun.

At the angle of 90 degrees it is directly receiving the light from sun at equator and the solar radiations are all gathered at one particular surface thus making the surface a little hot.

The sun strikes at 23 approximately at the tropic of cancer thus this will receive the maximum of heat from sun.

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Explanation:

Cells are the basic building blocks of all living things. The human body is composed of trillions of cells.

cells are bigger than atoms. We can see cells with a microscope. Just as atoms have smaller parts called protons, neutrons, and electrons, cells have smaller parts, too. When you look at cells with a powerful microscope, you can clearly see hundreds of them.

If the population size of a predator increases the prey population will decreases in size.

Predator-Prey relation refers to the interaction between two species where former is hunting the latter for food.

Example- Lion-Zebra, Bear-Salmon

Predator and Prey respond dynamically to one another. Higher the number of prey it will help to support the higher number of predators.

The key aspect of Predator- Prey relationship is the direct effect the predation has on numbers of their prey.

Predator- Prey relationship depends upon

- Detection of the prey

- Pursuit and capture of the prey

- Feeding

The fluctuation in the numbers of a predator species and its prey that occurs over time represent Population Dynamics.

As the prey population decreases due to predator killing, the food available is less and thus the number decline.

The process reverses when the population of predators increases putting population of prey at stake and once the population of prey decreases it eventually result into decrease in the population of the predators as their is not enough population of prey to thrive upon for predators.

Impact:

1. According to Evolution, the predator-prey relationship continues to be beneficial as both the species adapt to ensure they feed without becoming meal for another predator.

2. Maintenance of Biological Diversity of the particular ecosystem and helping to keep the ecosystem stable.

3. The balance of Predator- Prey can be disrupted due to climate change and changes such as drought, urban development, foresting and overuse of resources.

4. Predator- Prey population dynamics can be useful in indicating whether the population of a species could tax the capacity of a particular ecosystem to support their numbers.

5. The knowledge of Predator- Prey population can be used in determining the number of prevailing diseases.

Thus Predator-Prey relations plays vital role in maintaining ecosystem sustainable and balance and any shift in balance would result into disruption of the stability of the ecosystem.

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The light reactions of plants are the photochemical reactions that take place in the thylakoid membrane of chloroplasts and convert light energy into chemical energy in the form of ATP and NADPH.

Light reactions in plants occur in the thylakoid membranes of organelles referred to as chloroplasts. The light processes are mostly controlled by photosystems, sizable complexes of proteins and pigments (light-absorbing molecules) that are designed to capture light. The light reactions processes include the plants division of water into oxygen, protons, and electrons, and take place in the chloroplast thylakoid membrane. The light reactions occur in the chloroplast thylakoid membrane and involve the splitting of water into oxygen, plants,protons and electrons.

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Answer: The amount of time parents spend raising their children decreases with increasing fecundity

Explanation:

Fecundity is the capacity to have children. It may also be used to characterize an organism's rate of reproduction. The level of parental care provided is frequently correlated with the number of offspring produced. Generally speaking, the amount of time parents spend raising their children decreases with increasing fecundity. Animals can only use a finite amount of energy for reproduction.

Answer:

Oxygen is needed during the respiration process, which is how organisms turn food into chemical energy.

Carbon dioxide is a carbon-containing chemical that is present in the atmosphere and is frequently emitted during respiration. Blood oxygen is exchanged for carbon dioxide from bodily cells.

Explanation:

Answer:

burning of substance like fuel, wooden material etc

Answer:

Better Irrigation can help preserve both energy and water, given the fact that if irrigation precision with respect to the amount of water a plant needs, is timed perfectly each day, as well as unutilizing uneeded areas of irrigation, can help save a tremendous amount of both water and energy. With both power and water usage per plant being on the T, this not only perfects the way of cultivating plants, but also makes it as enviromentally friendly and cost-efficient as possible.

The origin of almost all the large moons around the jovian planets is D) They were formed by condensation and accretion in a disk of gas around the planet. This is known as the nebular theory.

This theory states that when a new star forms in the universe, it is surrounded by a disk of gas and dust. This disk of gas and dust can form planets and moons around the star

For the jovian planets, this disk of gas and dust is around the planet, rather than the star. As the planet forms and cools, particles in the disk condense and form gas and dust clouds. These clouds eventually form into larger objects which then accrete or collide to form moons around the planet.

This process of condensation and accretion has been observed in various star-forming regions, confirming the nebular theory and making it the most likely source for the large moons of the jovian planets.

The other possible origins of the moons, such as captured asteroids, comets, or planets, cannot be ruled out as some of the moons may have originated from these sources. However, the majority of the moons are believed to have formed from the process of condensation and accretion in a disk of gas around the planet.

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Explanation:

Thorn apple, also called gypsum weed and moonflower, is a poisonous plant belonging to the nightshade family. Ingesting thorn apple fruit may induce delirium and possibly death. The "sacred Datura" is a toxic plant native to northern Mexico and the southwestern United States.

Answer:

It completes it's life cycle at the adult stage, where it releases glochida which attaches to the gills of fish

Explanation:

Mussels start out as glochida, metamorphosizing into juveniles, to grow into adult mussels. Males release sperm, taken in by females for thier eggs, and the eggs become glochida.

Answer:

Level A, though some people call it different things.

Explanation:

The answer will be the lowest number/letter, as they are at the bottom of the food chain.

1. Water

2. Oxygen and Hydrogen

3. Oxygen and Hydrogen

4. Yes

5. Yes

6. 4

7. 2

8. 4

9. 2

10. No

11. Chemical change

Answer:

Sensitive hearing, Dizziness, Intolerance to motion. Rarely, patients who have perilymph fistula can develop sudden hearing loss or vertigo.

Explanation:

Answer:

I think B. They are divided.

Answer:

A. Independent, because the outcome of the first roll doesn't affect the outcome of the second roll.

Answer:

A

Explanation:

A

Whales are mammals, not fish. This means that, like all land mammals, they breathe oxygen through their lungs.

Whales and dolphins are mammals, and like us, they breathe air into their lungs. Because they do not have gills, they cannot breathe underwater like fish. Whales are mammals just like humans. Therefore, they have lungs and breathing air on their surface. It cannot extract oxygen from water like fish do with their gills. Whale inhalation is "conscious". The respiratory function of these animals is under the voluntary control of the central nervous system "CNS".

Whales accumulate carbon in their bodies during their long lifespans. When they die, they sink to the bottom of the ocean. Each large whale binds an average of 33 tons of carbon dioxide and removes this carbon from the atmosphere over centuries. Trees, on the other hand, only absorb up to 48 pounds of CO2 per year

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Answer:

glucose + oxygen --> carbon dioxide + water

Explanation:

The correct equation is:

               Glucose + Oxygen -> Carbon dioxide + Water + Energy.

Cellular respiration is a process in which different chemical reactions allow the degradation of organic compounds (glucose) to convert them into energy (inorganic substances) for cells.

The process is shown bellow.

Reactants:

Products

This means glucose and oxygen react to become  other components such as carbon dioxide, water and ATP. According to the above, the equation for cell respiration is:

Glucose + Oxygen -> Carbon dioxide + Water + Energy.

                                 or

C6H12O6 + O2 --> CO2 + H2O + ATP

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The "boss" of the autonomic nervous system is located in the hypothalamus of the brain (ANS).

The thalamus is your body's central nervous system. Except for the sense of smell, the thalamus is in charge of processing all bodily sensory information before it is sent to the cerebral cortex in the brain for interpretation. The thalamus also plays a role in awareness, memory, learning, attention, and sleep.

There are around 60 nuclei, or parts, in the thalamus. [1] Each nucleus contains unique pathways for input and a range of output projections, most of which connect to the cerebral cortex.

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The best way for a person to get all the essential nutrients and keep energy intake low is to choose foods with a high nutrient density from each food group and follow the principle of variety in dietary intake. So the correct option is d.

Nutrient density refers to the amount of essential vitamins and minerals that a food provides in relation to the number of calories it contains. Foods that are high in nutrient density, such as fruits, vegetables, lean proteins, and whole grains, are more nutrient-rich and energy-dense than foods that are high in calories but low in nutrients, such as processed foods and sweets.

Following the principle of variety in dietary intake means eating a variety of foods from different food groups to ensure that you get all the essential nutrients your body needs. Eating a variety of foods from the grains group, fruits, vegetables, dairy, proteins and healthy fats will provide the body with all the necessary nutrients.

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Treatment

Corticosteroids. Corticosteroids such as prednisone and budesonide (Entocort EC) can help reduce inflammation in your body, but they don't work for everyone with Crohn's disease. ...

Oral 5-aminosalicylates. These drugs include sulfasalazine (Azulfidine), which contains sulfa, and mesalamine (Asacol HD, Delzicol, others).