What is an adaptation?
1.when an animal in one species adopts an animal from another species
2.a physical or behavior change for the purpose of survival
3.a species that is about to go extinct
4.an animal’s reason for preferring a particular habitat

Answer:

there are two types of cell one eukaryotic cell that have true nucleus (genetic material enclosed in membrane) and membrane bounded organelles and other is prokaryotic cell that donot have have true nucleus (genetic material dispersed in cytoplasm) and membrane bounded organelles.

similarities between PC and EC is that both contains cell membrane, ribosomes (not a membrane bounded organelle) .

examples of PC are bacteria , paramecium,fungi etc

examples of EC are plant and animal cells

there are two names for cell membrane i.e plasmalemma, cell surface membrane,

selectively permeable or semipermeable means cell only allows those material to pass through its cell membrane which it needs.this cell'ability is important because to protection against the poisonous substance and to maintain cell needs .

Answer:

Carbohydrates consist of which of the following elements? (CHOOSE ALL THAT APPLY)

Question 1 options:

Carbon

Hydrogen

Oxygen

Calcium

Question 2 (2 points)

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Which of the following statements about carbohydrates are NOT true?

Question 2 options:

Your body uses carbohydrates to give you energy and keep everything going.  

Carbohydrates can be referred to as simple or complex sugars.  

Starch is an example of a simple carbohydrate.  

Starch must be broken down through digestion before your body can use it as an energy source.

Question 3 (2 points)

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Proteins are made up of smaller molecules called

Question 3 options:

starches.

amino acids.

monosaccharides.

protein synthesis.

Question 4 (2 points)

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Choose all of the following statements that correctly explain what essential amino acids are:

Question 4 options:

It is essential that our diet provides these amino acids.  

There are 20 essential amino acids.

Peanut butter on wheat bread is an example of a combination of foods that you can mix together to obtain the essential amino acids.

Can be considered as saturated or unsaturated.

Question 5 (1 point)

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Nutritionists measure the amount of energy in food in Calories. According to the article, fats contain the highest number of Calories.

Question 5 options:

True

False

Explanation:

All the bolded ones aqre correct sorry for lateness just finished test.

Carbohydrates consist of carbon, hydrogen, and oxygen. Starch is not an example of simple carbohydrates. Proteins are made up of amino acids. There are 20 essential amino acids.

The nearly 30 trillion cells that make up the human body work together to carry out each of the vital processes of life. Numerous chemical compounds found inside the cells enable them to carry out these vital functions. Biomolecules are the name given to these chemical compounds.

Biomolecules come in a broad variety of shapes and sizes and are engaged in a huge variety of biological processes. They are made up of more than 25 naturally occurring elements, with carbon, hydrogen, oxygen, phosphorus, and sulfur serving as the main ones.

Biomolecule production involves carbon compounds significantly. They combine covalently to create a number of different chemicals. When functional groups like alcohols, amines, aldehydes, ketones, and carboxylic groups are used to replace hydrogen atoms in hydrocarbons, certain biomolecules are referred to be derivatives of hydrocarbons.

Therefore the correct options are 1) A, B, and C; 2) C; 3) B; 4) B.

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Answer:#69

Explanation:My name is Walter Hartwell White. I live at 308 Negro Arroyo Lane, Albuquerque, New Mexico

Extracellular polymeric substances help protect biofilms from issues such as drying out and predators. Option A

Biofilms are complex communities of microorganisms that adhere to surfaces and form a protective matrix. They can be found in various natural and artificial environments, such as riverbeds, medical devices, and plumbing systems. Biofilms provide advantages to the microorganisms within them, including protection from environmental stresses and predators.

One of the key components that helps protect biofilms is extracellular polymeric substances (EPS). EPS are complex mixtures of polysaccharides, proteins, and DNA that are secreted by microorganisms within the biofilm. These substances form a matrix that encases the cells, providing structural support and protecting the community.

EPS help biofilms resist drying out by retaining water and preventing desiccation. The polysaccharides in EPS can absorb and retain moisture, creating a hydrated environment within the biofilm even in dry conditions. This is crucial for the survival of the microorganisms within the biofilm.

Additionally, EPS serve as a barrier against predators. The matrix formed by EPS can make it difficult for predators, such as protozoa or grazing organisms, to access and consume the microorganisms within the biofilm. It acts as a physical defense mechanism, limiting the exposure of the microorganisms to predation.

While quorum sensing, becoming sessile (immobile), and autoinducers are all important mechanisms and processes associated with biofilms, they do not directly address the protection of biofilms from drying out and predators. So Option A is correct.

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Answer: parasitism can help shape biodiversity by exerting selective pressure on host populations and by contributing to the diversity of parasitic organisms themselves.

Explanation: Parasitism is a form of symbiotic relationship where one organism, the parasite, benefits while the other, the host, is harmed. Parasites can have a significant impact on the biodiversity of an ecosystem by selecting and shaping the characteristics of their host species.

Parasites have evolved to infect specific hosts, which means that their survival and reproduction are tied to the existence of their host. As a result, parasites can exert selective pressure on the host population, favoring certain traits and characteristics that make the hosts more resistant or susceptible to infection.

This selective pressure can lead to evolutionary changes in the host population, which can lead to increased genetic diversity. For example, if a parasite infects a population of fish and selects for fish that have more effective immune systems, then those fish will be more likely to survive and reproduce, passing on their advantageous traits to their offspring. This can ultimately lead to the development of new species.

Furthermore, parasites themselves can be incredibly diverse. Studies have shown that parasites can account for a significant percentage of the total biodiversity in an ecosystem. By infecting different hosts and adapting to different environments, parasites can influence the evolution of their hosts and contribute to overall biodiversity.

Answer:

Parasitism, in common with competition, facilitation, and predation, could regulate BD-EF relationships. Parasitism affects host phenotypes, including changes to host morphology, behavior, and physiology, which might increase intra- and interspecific functional diversity.

Explanation:

have a nice day.

Answer:

it is found in the leaf mesophyll

Answer:

Leaf mesophyll Or The Palisade Layer

Explanation:

In plants, chloroplasts are concentrated particularly in the parenchyma cells of the leaf mesophyll (the internal cell layers of a leaf).
The layer it is found is The Palisade Layer. Below the upper epidermis is the palisade layer. This is one or a few layers of cylindrical cells that contain many chloroplasts.

Answer:

True

Explanation:

A trait that evolved and was selected by natural selection for its current function is known as an adaptation. Any hereditary traits that improve an organism's likelihood of survival benefit from adaptations. Option C is the appropriate response in this case.

In order to survive in their environment and function better under the conditions there, plants and animals have modified their physical characteristics or behaviours. The strongest and most advantageous traits or adaptations are handed on to the following generation, ensuring the survival of the plants or animals. Examples of adaptations include a camel's capacity for water storage, polar bears' use of their white fur to blend into the ice, and chameleons' capacity to change colour to evade predators. The process of change that occurs to animal and plant species over a long period of time, or how plant and animal species have evolved from one another, is known as evolution.

Therefore, we can conclude that adaptations aid any hereditary traits that improve an organism's chances of survival.

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When 198 moles of NH4+ are oxidized to NO2-, 1188 moles of H+ are produced. Rounded to two decimal places, the answer is 1188.00 moles of H+.

To balance the two half-reactions, we need to multiply the reduction half-reaction by 4, leading to: 4NO2- + 24e- + 24H+ → 4NH4+ + 12H2O (multiplied by 4) O2 + 4e- + 4H+ → 2H2O (not multiplied)

We can then add the two half-reactions and cancel out the electrons and water molecules that appear on both sides of the equation. The resulting balanced equation is:

4NO2- + O2 + 24H+ → 4NH4+ + 8H2O

This equation shows the oxidation of ammonia to nitrite by oxygen, producing water and hydrogen ions in the process. We can see from the equation that for every 4 molecules of NO2- that are oxidized, one molecule of O2 is consumed and 24 H+ are produced.

To determine how many moles of H+ are produced when 198 moles of NH4+ are oxidized, we need to use stoichiometry. We know that for every 4 moles of NO2- produced, 24 moles of H+ are produced. Therefore, we can set up the following conversion factor:

24 H+/4 NO2- = x H+/198 NH4+

Solving for x gives:

x = 1188 H+

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Answer:

the functional groups found in fatty acids are the carboxyl group (-COOH) and the hydroxyl group (-OH).

Answer:cytokinesis

Explanation:

Answer:

C Sporangia releases spores that grow into male plants with pollen and female plants with ovules

Answer:

penis

Explanation:

Answer:

A big juicy..............................................................................................................................................................................................................................................................................................................................................................................................

popsicle........... or my d-

Explanation:

Answer:

The biological classification's hierarchy involves eight important taxonomic ranks. They are written below in decreasing order: Life > Domain > Kingdom > Phylum > Class > Order > Family > Genus > Species.

The U.S and Canada have historically used a six-kingdom scheme in their traditional textbook, such as Plantae, Animalia, Protista, Fungi, Archaea / Archaebacteria, and Bacteria / Eubacteria. The given image depicts snake which come under "Animalia Kingdom", carnivorous reptiles to  suborder.

The statement that a certain amount of kinetic energy is required to break the bonds between atoms and make a chemical reaction go is not entirely accurate.

The rephrased statement is:

For a chemical reaction to occur, a minimum amount of energy, called the activation energy, is required to break the bonds between atoms in the reactant molecules, and the likelihood of a reaction occurring increases with the number of molecules with sufficient energy to overcome the activation barrier."

A chemical bond is a strong attraction between atoms or ions that allows molecules and crystals to form. Ionic bonds and covalent bonds both form when two oppositely charged ions interact electrostatically.

For a chemical reaction to occur, a minimum amount of energy, called activation energy, is required to break the bonds between atoms in the reactant molecules. This activation energy can come from a variety of sources, including heat, light, or catalysts, and it is often provided by the thermal energy of the surroundings.

However, it is not true that if the molecules do not have at least that energy, then there will be no reaction within the substance at all. In reality, there will always be some molecules with enough energy to undergo a reaction, even at lower temperatures, due to the statistical distribution of kinetic energies among molecules.

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Plants transform light energy into chemical energy using photosynthesis.

Photosynthesis is divided into light-dependent reactions and light-independent reactions.

Light-dependent reactions occur in the thylakoids of the chloroplast, where one molecule of chlorophyll absorbs a photon and loses an electron, which is later taken to the molecule of pheophytin and then to a quinone, initiating an electron transport chain that produces NADPH. The movement of electrons also creates a proton gradient, which can be used by the ATP synthase to produce ATP. The electron lost by the chlorophyll is regained from the photolysis, which breaks apart the water and releases oxygen.

The light-independent reactions are the ones where the enzyme RuBisCO transforms CO₂ from the atmosphere and makes carbohydrates, in a process called the Calvin cycle, which uses the NADPH created in the light-dependent reactions. The carbohydrates are later used in cellular respiration to obtain more ATP.

Muscular disorders can affect the skeletal muscles, which are the muscles that allow us to move our body, as well as the smooth muscles and cardiac muscles.

Myopathies, or muscular disorders, can have an impact on a number of the body's organs and systems. Since these disorders have an effect on the composition, structure, or metabolism of muscle tissue, they have the greatest direct effect on the muscular system.

This may result in symptoms such as muscle atrophy, cramps, stiffness, and weakness. However, because the heart, lungs, and digestive system depend on healthy muscle function to do their jobs well, the effects of muscular disorders can also spread to those organs.

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For metabolism of glucose with the metabolism of carbohydrates proteins and fats:

Metabolism is the chemical process that takes place in cells of living organisms to sustain life. Complex carbohydrate hydrolyzes to glucose and are broken down in the citric acid cycle.

Proteins have the same amount of energy as carbohydrates, fats have the most energy. Carbohydrates is a primary fuel because carbohydrates are burned immediately. Excess energy gained from fat is stored in the body for future use.

Carbohydrates are readily digested than lipids/fats. Monosaccharides and Disaccharides are water soluble for transportation than lipids. Carbohydrates, long chains of sugar, are stored as glycogen and lipids as fat.

Protein are large organic compounds made of amino acids in linear chains of 8 amino acids for survival. It is not usually used for energy unless the body is not getting enough calories.

The amount of energy received from carbohydrates is measured in calories  with 4 grams of carbohydrate or protein and 9 grams of fat.

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The best answer that describes the scientists who contributed to the current body of knowledge is scientists from all areas of the world, which is in Option C., as scientific discoveries and advancements have been made by scientists from all over the world.

The development of science and scientific knowledge is not confined to any one region or culture. Instead, it is a global enterprise that involves the contributions of scientists from all areas of the world. Science is an international and collaborative effort where scientists from different countries and cultures work together to advance knowledge and understanding. Over the centuries, many scientists from different parts of the world have contributed to the scientific knowledge that people have today.

Hence, the best answer that describes the scientists who contributed to the current body of knowledge is scientists from all areas of the world, which is in Option C.

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Answer:

I think its D

Explanation:

Im sorry if you get it wrong, I think d is the answer

Answer:

breathing

Explanation:

Extinction and biodiversity are related in that extinction reduce biodiversity.

Biodiversity refers to the variety of living organisms within an ecosystem or on Earth as a whole.

When a species goes extinct, its unique genetic information and ecological role are lost. This loss of genetic and ecological diversity can have ripple effects throughout the ecosystem, as other species may depend on the extinct species for food or other resources, or may compete with it for resources. Over time, repeated extinctions can lead to a decline in overall biodiversity and a less resilient ecosystem. Therefore, preserving biodiversity is important in order to maintain healthy and sustainable ecosystems.

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Answer:

The main source of crude oil in Alaska is onshore drilling. Most of the crude oil produced in Alaska comes from the North Slope region, where oil is extracted from underground reservoirs through onshore drilling operations.

A generator is a device that converts mechanical energy into electrical energy by using the electromagnetic theory. It does this by rotating a coil of wire within a magnetic field, which induces an electric current in the wire.

Many modern tractors use GPS systems to steer up and down the fields without skipping any rows. GPS technology allows farmers to precisely map their fields and program their tractors to follow specific paths, ensuring that no rows are missed and that the land is used efficiently.

Coal-burning power plants are harmful to the environment for several reasons. They produce high amounts of carbon dioxide and other greenhouse gases, release tons of air pollution, and contribute to acid rain. Therefore, the correct answer is d) All of the above.

Explanation:

Answer:

The tide came in

Explanation:

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The option that tells us of the availability of fresh water on the earth is d. All of the above.

This is the term that are known to occur naturally in nature and have little or no concentration of dissolved salt in them.

The freshwater of the earth is known to be

Less than 1% of Earth s water is liquid fresh water.

b. More than two-thirds of Earth s freshwater is stored in glaciers and icecaps.

c. 99% of liquid freshwater on Earth is stored as groundwater.

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Answer: D: All Of The Above

Explanation:

just took the test

Planting one kind of tree is another form of a monoculture. Monoculture hampers ecosystem functioning, as it diminishes functional biodiversity. Terrestrial ecosystems are a complex network of several species, that interact with constant feedback among themselves. Trees are primary productors, which means they produce the essential nutrients (that is, organic carbon) that other animals will use to nourish and grow. Different types of primary productors begets functional diversity of herbivores (animals that harm them) and also symbiotic diversity (organisms that benefit them). Besides this, tree's diversity promotes soil stability and function, which is critical to keep the ecosystem working in the long run. Without a proper soil, trees will eventually die, which would annhilate terrestrial biodiversity. So, monocultures are not a pretty good idea in places like tropical forest, where there are a lot of different tree species. On the contrary, in ecosystems such as pine forest, where there is one dominant tree species (which is not the same, as only one tree species, it is just that one tree species is more abundant), planting one kind of tree (the dominant one) could be a good practice to restore the ecosystem.

Answer:

Some disadvantages of planting one kind of tree include:

1. Loss of biodiversity (the variety of life in the world or in a particular habitat or ecosystem).

2. They don't provide the necessary amount of nutrition/food.

3. It just takes up a lot of space in the future for when you could be building a farm or something.

Explanation:

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Answer:

The crane has a sharp and pointed beak adapted for catching and grasping prey. The sharp beak allows the crane to effectively stab and pierce its prey, such as fish, frogs, or small animals. The pointed shape helps the crane to accurately target its prey and secure a firm grip.

On the other hand, the duck has a flat beak, which is better suited for its specific feeding habits. Ducks are primarily filter feeders, and their flat beak enables them to sift through water or mud to collect small organisms, insects, and plants. The flat beak acts like a sieve, allowing the duck to strain out food particles while retaining water.

The difference in beak shape between the crane and the duck reflects their distinct feeding strategies and ecological roles. Each species has evolved its beak shape to optimize its ability to capture and consume the specific types of food sources available in their respective habitats.

Answer:

The sample obtained for the study is not enough. Also, a control group is not established thus making the study erroneous.

Explanation:

The total sample size of 4 specimens from each of the two groups does not qualify as an appropriate sample size for the generalization of the results. Furthermore, the mixing of different ages and genders is not suitable for this kind of sample.

Also, the control group is not established where healthy specimens are kept in a similar environment to factor out the effects of the environment and other components on the health/death of the animals.