Explain how fermentation is useful in the preservation of food products.

Answer:

B. A group that is treated the same as other groups except for the variable being tested.

In the context of a scientific experiment, a control group is a group that is treated the same as other groups except for the variable being tested.

The scientific experiment can be defined the test the hypothesis from observation and it is the foundation of the scientific method.

There are different steps involve in scientific method and the steps are  Making observations, form the hypothesis, design and conduct experiment, evaluation of results, both accept or reject the hypothesis.

variable is the factor which will be compulsorily added to an experimental set up such as dependent, independent and controlled variables.

An independent variable is the parameter which can not influenced by other factor while it can change other factor where as A dependent variable depend on other variable and it  can be changed by the influence of independent variable.

Control variable which remain constant can not be changed, but it is important as it prevent bias from the result of experiment.

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Explanation:

The first organism is a Filter Feeder, which filters water to consume phytoplankton (microalgae).

The second organism is a Scraper/Grazer, which consumes leaves and algae and fungi on the leaf surface.

The third organism is a Shredder, which consumes algae on rocks.

The fourth organism is an Invertebrate Predator, which preys on small invertebrates.

The fifth organism is a Vertebrate Predator, which preys on vertebrates and invertebrates.

Answer:

B

Explanation:

It protects us from harmful rays

Explanation:

The fact that the soil did not change significantly after five years, while the tree gained 74 kg, suggests that the tree's mass did not come from the soil alone. If the tree had gained all its mass from the soil, the soil would have lost an equivalent amount of mass, which did not occur. Therefore, this evidence suggests that the mass of a tree does not come solely from the soil.

While sunlight is necessary for photosynthesis, which allows the tree to produce glucose, the mass of a tree does not come directly from sunlight. Rather, the tree uses the glucose produced during photosynthesis to build its own tissues, such as leaves, branches, and roots. Therefore, while sunlight is necessary for the tree to grow, it is not the source of the tree's mass.

The tree's increase in mass is primarily due to the process of photosynthesis. During photosynthesis, the tree uses energy from sunlight to convert carbon dioxide and water into glucose, which it then uses to build new tissues. Additionally, the tree may have also taken up nutrients, such as nitrogen and phosphorus, from the soil, which it incorporated into its tissues. However, it's important to note that the majority of the tree's mass comes from the carbon that it takes up during photosynthesis, rather than the nutrients in the soil.

The outermost layer of the digestive tract is found within the abdominal cavity and is called the serosa. It is a thin sheet of loose connective tissue that is dense with blood vessels, lymphatics, and adipose tissue and is covered by a basic squamous covering epithelium or mesothelium.

The digestive system collaborates with the other body systems, as is true of all bodily systems, and does not operate independently. Think about how the cardiovascular and digestive systems interact, for instance. Veins drain the digestive tract, and arteries deliver oxygen and digested nutrients to the digestive organs.

These intestinal veins, which together make up the hepatic portal system, are special in that blood is not returned to the heart in a direct manner. Instead, this blood is sent to the liver, where its nutrients are processed before making the whole circuit back to the heart.

In order to assist the cardiac muscle and vascular tissue in their function, the digestive system also supplies nutrition to those tissues. The link between the endocrine and digestive systems.

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si hay conducta beacuse there is life and life is science

Answer:

Diffusion

Explanation:

Diffusion is a passive process of transport. A single substance tends to move from an area of high concentration to an area of low concentration until the concentration is equal across the space.

A passive form of transportation is diffusion. When a space's concentration is uneven throughout, a single substance has a tendency to shift from a high concentration to a low concentration area.

Because the biochemicals are moving from an area of higher concentration to a region of lower concentration, energy is not needed to transport the molecules in this biological process.

Passive transport is the method used to move any easily soluble particles.

As a material diffuses, it moves from places of high concentration to areas of lower concentration. This process goes on until the substance is dispersed equally throughout the system.

Therefore, When the concentration is unevenly distributed throughout the space, a single substance has a tendency to travel from an area of high concentration to an area of low concentration.

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Lighter colored mice were more likely to avoid predators and to reproduce. Therefore, option (D) is correct.

The lighter brown coloration of the deer mice in the Sand Hills of Nebraska is likely an adaptation that provides them with a survival advantage in their specific habitat. The light, sandy soil in the area may offer better camouflage for lighter colored mice, making them less visible to predators and increasing their chances of survival.

As a result, these mice would have a higher likelihood of successfully reproducing and passing on their lighter coloration traits to future generations.

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Answer:

Proteins are responsible for the mass and fat of much of our bodies (and other organisms). The instructions for making protein are encoded in DNA. These genes provide the sequence of building blocks known as nucleotides. This string of amino acids then folds into different shapes. The structure of proteins determines what a molecule can do. Proteins contain carbon, hydrogen, oxygen, and nitrogen. ​

Explanation:

Kindly pardon me: I ain't so sure of the first two answers.

Photosynthesis is done by green plants. This process requires light energy from sunlight and carbondioxide from abiotic matter. Photosynthesis makes food and oxygen for an ecosystem.

Photosynthesis is a biological process carried out by green plants to synthesize their own food (glucose) using the energy of sunlight.

Photosynthesis converts light energy into chemical energy where water and carbon dioxide as reactants are used in the formation of carbohydrates (food) and waste oxygen using solar energy.

The missing components of the photosynthetic process are as illustrated above.

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Identical twins and adopted children both can be logical subjects to use in a study of genetics and nature versus nurture. Thus, the correct option is D.

Identical twins have the exact same genetic material without any difference. So, their genetic material being the same, the only difference that will be in between them would be due to the difference in nurturing.

This can be observed through the difference in their IQ levels. The IQ level of twins differs only due to factors such as diet, culture and environmental factors.

Likewise, in adopted children, the genetic material would be different, but they adapt to the external conditions which thus influences the expression of certain of genes as is seen in their behaviors. It is mainly because of the nurturing.

Nature does make a person likely to have some personality trait, however it is the nurturing that influences whether or not that personality trait would be expressed in the individual.

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D. Solar

Explanation:

Solar converts sunlight directly into electricity without the need of a turbine

Solar does not use a turbine to generate electricity. Therefore, option (D) is correct.

Solar power is a renewable and sustainable energy source that generates electricity by harnessing the energy from the sun. It is a clean energy alternative to fossil fuels, as it does not produce harmful emissions or pollutants that contribute to climate change.

Solar power systems use photovoltaic (PV) cells, which convert sunlight into direct current (DC) electricity. An inverter then converts the DC electricity into alternating current (AC) electricity that can be used in homes and businesses.

Solar power is becoming more affordable and accessible, and many governments around the world offer incentives to encourage the installation of solar panels. The growth of solar power has the potential to reduce greenhouse gas emissions, create jobs, and provide energy access to remote communities.

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Answer:

1. Recognition of foreign molecules - Defense

2. Receptors of extracellular signals - Regulation

Explanation:

Making an observation and asking a question is a part of the scientific method that is best illustrated by the biologist wondering why there were so few frogs in the second year compared to the first. Thus, the correct option is A.

The scientific method may be defined as the procedure of objectively confirming attributes through testing and experimentation. It includes observation, hypothesis, prediction, operating an experiment, and finally investigating the results.

A biologist collected the data on the frog population before industrialization, but after a year there should be a considerable reduction in the population of frogs observed by a biologist. The cause of it is also determined by the biologist very well.

Therefore, the correct option for this question is A.

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Organisms that undergo photosynthesis are typically autotrophic, meaning they can produce their own food using energy from sunlight. This includes plants, algae, and some types of bacteria.

A reproductive structure produced by some fungi is a mushroom. Mushrooms are the fruiting bodies of fungi, and they produce spores for reproduction. The cap of the mushroom is often the most noticeable part, and it can have a wide range of colors and shapes.

The round orange-colored fruit that grows on a tree and has dark spots on its peel is likely an orange. Oranges are a type of citrus fruit that grow on trees in warm climates. They are a good source of vitamin C and are commonly eaten as a snack or used in cooking and baking.

Living things that grow from the soil can include a wide range of organisms, such as plants, fungi, and bacteria. It's difficult to say exactly what is being referred to without more information or a specific image.

A starfish, also known as a sea star, is a marine invertebrate with spiny skin and five arms surrounding a central disk-shaped body. They are found in a variety of ocean habitats and are known for their ability to regenerate lost limbs.

The large, nut-like fruit on a palm tree is likely a coconut. Coconuts grow on palm trees and are a common source of food and drink in many tropical regions. They are also used in a variety of products, such as coconut oil and coconut milk.

Answer:

hydrogen

Explanation:

this is because hydrogen has a valency of 1 and has only one electron in it's outer most energy level thus able to bond with many elements easily

The mammalian trachea is made of soft tissue and cartilage that provides extra support and strength to keep the passage open in this structure. Therefore, the correct alternative is A. by rings of cartilage.

Logs burning in a campfire are the circumstances that most mimic cellular respiration. This is due to the fact that both processes release energy and depend on oxygen to continue. The body uses cellular respiration, a series of metabolic events, to liberate energy from food.

This is the process of breathing; the taking in and exhaling of air. Biology. the whole of the physical and chemical mechanisms that transport oxygen to tissues and cells and release carbon dioxide and water during oxidation in an organism.

It is absolutely necessary for an organism to preserve its life for a process known as metabolism to take place in its body. These activities, which include anabolism and catabolism, are also known as metabolic processes.

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Soil erosion rates accelerate dramatically, impacting water quality in streams and rivers.

Answer:

B

Explanation:

Answer: We would have way less oxygen.

Explanation:

The earth's oxygen mostly comes from the ocean (about 50-80% of oxygen) therefore we would have way less air to breathe.

Answer:

Geographic isolation can have a significant impact on evolution. When a population of organisms is separated from the rest of their species by a physical barrier, such as a mountain range, an ocean, or a river, they can no longer breed with individuals from the other side of the barrier. This can lead to the accumulation of genetic differences between the two groups over time, eventually resulting in the formation of two distinct species.

For example, the formation of the Isthmus of Panama approximately 3 million years ago separated the populations of marine organisms living in the Atlantic Ocean and the Pacific Ocean. As a result of this geographic isolation, the two populations of marine organisms evolved separately, developing unique adaptations to their respective environments. Today, the Atlantic and Pacific Ocean are home to distinct and diverse ecosystems, each with their own unique species of animals and plants

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Answer: Denise AO -

David AB +
children 2 (A): 1 (B): 1 (AB) all positive

Explanation:

Answer:

The reproductive parts of an angiosperm are located in the flowers. A flower of an angiosperm usually consists of four whorls namely calyx, corolla, androecium and gynoecium.

Explanation:

Stamen includes anther (where pollen grains are produced) and filament, while carpel includes stigma, style, and ovary (where eggs are produced).

Enzymes play a crucial role in the process of absorption by breaking down large molecules of food into smaller, more easily absorbable molecules.

In the digestive system, enzymes are produced by specialized cells and secreted into various parts of the digestive tract. For example, enzymes such as amylase and lipase are secreted into the mouth and small intestine, respectively, to break down carbohydrates and fats.

Once the food molecules are broken down into their smaller components, they can be more easily absorbed through the walls of the digestive tract and into the bloodstream. Enzymes also help to facilitate the movement of these molecules across the cell membrane and into the cells of the body, where they can be used for energy or stored for later use.

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Answer: Cells will duplicate or copy their DNA right before they divide. The process of cell division is called mitosis. Since the cell is dividing it needs two copies of its DNA - one is kept by the parent cell and the other is passed to the daughter cell.

Explanation: