11. What happens during the S phase of the cell cycle?
The cell makes daughter cells.
The cell doubles in size.
The cell copies its organelles.
The cell copies its DNA.​

Answer:

It is the center of the solar system.

It is made up mostly of gases, not solids.

It is the most massive object in the solar system.

Explanation: The sun is only about 4 billion years old so the 3rd one is incorrect, and the last one is incorrect because the Sun is made up of mostly hydrogen

The statistical test that is common for genetics and tests observed data against the probability of those values is the chi-square test.

A statistical technique called the chi-square test is used to compare actual outcomes with predictions. The goal of this test is to establish whether a discrepancy between observed and expected data is the result of chance or a correlation between the variables you are researching.

What is studied in genetics?

The study of genes and heredity, or how particular characteristics or traits are passed from parents to offspring as a result of changes in DNA sequence, is known as genetics. A gene is a section of DNA that has the instructions needed to create one or more molecules that support bodily function.

Therefore, the chi-square test is a statistical test that is common for genetics and tests observed data against the probability of those values.

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Answer:this would also stop gas exchange and further limit photosynthesis

Explanation: did this on USA test prep and got it right

This would also stop gas exchange and further limit photosynthesis. Therefore, option B is correct.

The content of cell sap is reduced as a result of the conversion of the organic acids into starch. This causes water to exit hard cells, and a decline in their turgor causes the stomata to close. Stomata therefore open throughout the day and close at night.

The pH of the guard cells controls stomatal opening, according to the starch sugar interconversion theory of stomatal opening. In neutral or alkaline pH, stomata open. When the guard cells are open during the day and closed at night, they contain starch during the day.

Under dehydration circumstances in the winter, stomata may close to reduce water loss for the tree. This would also stop gas exchange and further limit photosynthesis. Therefore, option B is correct.

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Answer:

No

Explanation:

No, plants do not take in air with their roots. Roots are designed to absorb water and minerals from the soil. In order to get the air and carbon dioxide they need for photosynthesis, plants have specialized structures called stomata in their leaves and stems that allow air to enter and exit. These stomata regulate the movement of gases into and out of the plant, so the plant can take in the carbon dioxide it needs and release the oxygen it produces.

Answer:

WOULD HAVE HELPED IF I HAVE STUDIED THIS TOPIC I AM EXTREMELY SORRY

Explanation:

The dorsal root is sensory, therefore if you cut the dorsal root it will affect the sensory motor.

Temperature is a measure of the average kinetic energy of particles, the answer is the 3rd option.

Thermal energy is a system or an object's energy as a result of its molecules and atoms moving around. When force is applied to an object, it experiences movement but in the case of thermal energy, it requires heat for a reaction to occur.

Average kinetic energy of atoms is measured by temperature of atoms or molecules in an object or a system. In thermodynamics, the zeroth law states that heat is not transferred when two objects are in thermal equilibrium.

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The statement that best describes the population size between 1990 and 2011 is many increases and decreases but declined overall. Thus, the correct option for this question is B.

The population may be defined as the group of individuals belonging to the same species living in the same area at a definite time. The size, density, dispersion, abundance, birth rate, death rate, etc. are the characteristics of the population. These characteristics are also known as demographic factors.

The gray fox is a species of carnivorous mammal of the Canidae family distributed by the American continent, from the south of Canada to Venezuela. Gray foxes are hunted, it is not as common as in other types of foxes, since the degree of their coats is perceived as inferior in quality.

Therefore, the statement that best describes the population size between 1990 and 2011 is many increases and decreases but declined overall. Thus, the correct option for this question is B.

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Answer:

b. perennial

Explanation:

because the Douglas fir several years because of which the area remains covered with forest and survives and adapt itself to the Taiga biome

The enzyme concentration and reaction rate relationship in enzyme kinetics is defined as follows: According to the Michaelis -Menten equation, the reaction rate is proportional to the enzyme concentration up to a limit that is referred to as Vmax, the maximum rate of an enzyme-catalyzed reaction.

The graph below illustrates the relationship between enzyme concentration and reaction rate: Graph illustrating the relationship between enzyme concentration and reaction rate . As you can see in the graph, increasing the enzyme concentration increases the reaction rate, but only up to a certain point.

After this point, the reaction rate will plateau, indicating that the reaction has reached its maximum rate. Therefore, the maximum rate of an enzyme-catalyzed reaction is determined by the enzyme concentration, and it is independent of the substrate concentration.

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Answer: A, C, D

Explanation: All of them change the physical appearance except for B because when you burn paper it is a chemical change that can not be undone. Only a physical change can be undone.

Answer:

An important source of energy

Answer:

There is no diagram but the cell division happens in stages. PMAT is a way to remember them. prophase, metaphase, anaphase, and telophase. This all takes place in Mitosis. Mitosis is the division of cells to make more *identical* cells, (skin cells, stomach cells). But Miosis is the making and division of sperm cells *not Identical* (sperm, and egg cells) are made in this phase.

Sports leadership requires a combination of attributes such as strong communication skills, strategic thinking, a competitive spirit, and a commitment to teamwork.

The primary responsibility of sports leaders is to guide their team towards success, by setting goals, creating a positive team culture, motivating and inspiring players, and making difficult decisions.

Mo Farah and Harry Kane are two successful sports leaders who possess different but complementary attributes. Mo Farah is a long-distance runner who has won numerous Olympic and World Championship medals. He is known for his dedication, focus, and resilience, which have helped him overcome adversity and achieve his goals. He also has strong self-belief and an ability to remain calm under pressure.

Harry Kane is a footballer who plays for Tottenham Hotspur and the England national team. He is an excellent goal scorer, but also a team player who leads by example. He has excellent communication skills and is known for his ability to motivate and inspire his teammates. He also has a strong work ethic and is willing to put in extra effort to improve his skills.

Sports leaders require a unique set of attributes and responsibilities to be successful. They must possess strong communication skills, strategic thinking, a competitive spirit, and a commitment to teamwork. Additionally, they must inspire and motivate their team members, set clear goals, create a positive team culture, and make difficult decisions when necessary.

Mo Farah and Harry Kane are both successful sports leaders who possess different but complementary attributes. While Farah is known for his dedication, focus, and resilience, Kane is known for his communication skills, motivation, and work ethic. Both have strong leadership qualities and have achieved significant success in their respective sports.

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The usage of synthetic plant hormones for the modification of plant growth can have environmental implications.

Factors to consider

1. Ecotoxicity: Synthetic plant hormones, if not properly regulated or used in excessive amounts, can pose risks to non-target organisms and ecosystems. They may affect the growth and development of other plants, beneficial insects, and microorganisms, potentially disrupting ecological balance.

2. Soil and Water Contamination: Improper application or disposal of synthetic plant hormones can lead to soil and water contamination. Runoff from treated fields or improper disposal of unused hormones may introduce these compounds into water bodies, potentially affecting aquatic organisms and overall water quality.

3. Resistance and Persistence: Repeated and excessive use of synthetic plant hormones can contribute to the development of resistance in target plant species. This can lead to the evolution of herbicide-resistant weed populations, requiring higher doses or different chemicals to achieve the desired effect. Moreover, some synthetic hormones may persist in the environment for extended periods, potentially impacting subsequent crops or natural vegetation.

4. Non-target Effects: Synthetic plant hormones may influence the growth and development of unintended plant species, leading to unintended consequences such as changes in biodiversity, alteration of natural plant communities, or interference with the natural ecological succession.

5. Human Health Concerns: The potential impacts of synthetic plant hormones on human health are an area of ongoing research. While these hormones are generally considered safe for use in agriculture when used according to regulations, there may be concerns related to exposure, residues, or indirect effects on food quality and safety.

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From the diagram above, I dont think that organisms of the same ordershare a stronger evolutionary relationship than organisms in the same phylum. This is because, after kingdoms, the subsequent categories of increasing specificity are: phylum, class, order, family, genus, and species. Levels in taxonomic classificationAt each sublevel in the taxonomic classification system, organisms become more similar.Organisms that share similar physical features and genetic sequences tend to be more closely related than those that do not. Scientists use a tool called a phylogenetic tree to show the evolutionary pathways and connections among living organisms. Phylogenetic treeA phylogenetic tree is a diagram used to reflect evolutionary relationships among organisms or groups of organismsTaxonomical classificationTaxonomy is the scientific study of naming, defining and classifying groups of living organisms based on shared characteristics. There are seven main taxonomic ranks: kingdomphylum ( in animals )or division ( in plants )classorderfamilygenusspecies.

Answer:

They have coniferous trees

Explanation:

Coniferous vegetation is also known as Taiga vegetation.

Answer:

they receive a good amount of rainfall

Explanation:

Answer:

The pH of water is neutral.

Explanation:

It is neutral because the concentration of hydronium ions equals that of hydroxide ions. It is higher than the pH of acids and lower than the pH of bases.

the average rate of deposition is 1.4 cm/a over the first 1km. Hence, the age of the rock is approx 214 years.

The formation of sedimentary rocks involves the accumulation or deposition of mineral or organic particles at the Earth's surface, followed by cementation. The mechanisms that lead to the accumulation of these particles are collectively referred to as sedimentation.

When the land around you erodes or breaks down, sedimentary rocks are created.

Sediment refers to the tiny fragments of soil that deteriorate. Sand, mud, stones, minerals, fossils, and plants are all examples of sediment.

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The flood mitigation technique that city is implementing by developing an open green space in the center of town is stormwater management.

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Answer:

A

Explanation:

Amoebas reproduce through binary fission which is a form of asexual reproduction.

Answer:

a

Explanation:

no sexual reproduction was included in the answer

Answer:

Fungi

Explanation:

it is a eukaryote

Which is not a prokaryote?

In the given options, Saccharomyces is not a prokaryote as it is a fungus and hence a eukaryote. They have a well-defined nucleus and membrane-bound nucleus.

Answer:

In heterozygotic individuals, the gene for sickle cell anemia is protective against malaria.

Explanation:

Through the same mechanism that the mutation associated with sickle cell anemia produces the disease (altered hemoglobin structure), having a single copy of the mutation (that is, being heterozygotic) provides protection against malaria. This is believed to be due to the altered structure causing difficulty for the malaria parasite when it attempts to enter red blood cells as part of its life cycle.

Today, there are medications to successfully treat malaria, but it still killed 627,000 people in 2020. This represents a significant evolutionary pressure for genes that would prevent serious malarial illnesses. As malaria  was and still is common in African regions, the result was a higher prevalence of sickle cell anemia in those of African descent.

Birds that detect UV light have favorable characteristics that enable them to survive and reproduce. These  characteristics are passed on to their offspring.

According to Darwin's theory of evolution, organisms that are better adapted to their environment live long enough to survive and reproduce and pass on these favorable traits to their offspring.

Since birds depend on these fruits for food and these fruits reflect UV light. A bird that can not detect UV light will find it difficult to obtain food. Hence, birds that have developed the ability to detect UV light will live long enough and reproduce, passing on these favorable characteristics to their offspring. Hence, birds that can detect UV light appears from birds who do not originally detect UV light.

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Answer:

Mediterranean climate; hot, dry summers; mild, wet winters

Answer:

Mediterranean climate; hot, dry summers; mild, wet winters

Explanation: