Which three functional groups are part of the basic structure of every amino acid?.

Answer:

Explanation:

Texture

Answer:

Attached, or bound, ribosomes are found on the exterior of an organelle called the endoplasmic reticulum.

the answer to the question is ubiquitous

Answer:

Explanation:

In general, the greens in a composed salad are the base component. They typically consist of various types of lettuce, spinach, or other leafy vegetables.

A composed salad is an aesthetically arranged mix of ingredients, where each component is prepared separately and then assembled together on a plate. The greens act as the foundation, providing both color and texture to the salad. They can include a variety of leafy vegetables, such as romaine, iceberg, arugula, kale, or even mixed greens.

These greens not only add visual appeal but also contribute to the overall flavor and nutritional value of the salad. In addition to greens, a composed salad often contains proteins, grains, vegetables, fruits, nuts, and dressing to create a balanced and satisfying meal.

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Leafy fliers, such as birds and insects that predominantly feed on plant material, need to take in nitrate ions for several reasons.

Protein Synthesis: Nitrate ions are a crucial source of nitrogen, which is an essential component for building proteins. Proteins play vital roles in the growth, development, and maintenance of tissues and organs. Leafy fliers require proteins for various physiological functions, including muscle development, enzyme production, and immune system function.

Energy Production: Nitrate ions are involved in the process of respiration, where they contribute to the production of energy in the form of adenosine triphosphate (ATP). ATP is the primary energy currency in living organisms and is necessary for cellular processes, muscle contraction, and flight.

Amino Acid Synthesis: Nitrate ions are converted into amino acids, which are the building blocks of proteins. Amino acids are not only used for protein synthesis but also serve as precursors for the production of other important molecules, such as neurotransmitters, hormones, and pigments.

Nutrient Balance: Nitrate ions help maintain a proper nutrient balance in the diet of leafy fliers. Plants are a primary source of nitrogen, and consuming plant material ensures leafy fliers obtain an adequate nitrogen supply for their metabolic needs.

In summary, leafy fliers need to take in nitrate ions to support protein synthesis, energy production, amino acid synthesis, and maintain a balanced nutrient intake. Nitrate ions play a critical role in their overall growth, development, and physiological functions.

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Answer:

Pour the water first, freeze it, and then pour the milk. The freezing point of raw unprocessed milk is ∼−0.5 degrees Celsius, so by keeping the barrel under 0 degrees, but above −0.5 degrees, you can keep the water frozen and the milk liquid, and be able to separate them.

You can freeze the whole thing below −0.5 degrees. Just don’t warm it suddenly above 0 degrees without separating the milk first.

In fact, the freezing point of milk can be and is used as a test to check whether water was added to milk by producers.

The four species that are found in all possible combinations with each other, with 2-3 differences in their DNA in the 9 pairings, are as follows:The common chimpanzee (Pan troglodytes) and the bonobo chimpanzee (Pan paniscus).

Their genomes have an average of 1.3% sequence divergence.The western gorilla (Gorilla gorilla) and the eastern gorilla (Gorilla beringei). Their genomes have an average of 1.7% sequence divergence.The Sumatran orangutan (Pongo abelii) and the Bornean orangutan (Pongo pygmaeus). Their genomes have an average of 1.5% sequence divergence.The African savanna elephant (Loxodonta africana) and the African forest elephant (Loxodonta cyclotis). Their genomes have an average of 1.8% sequence divergence.

Therefore, these four species are those that have 2-3 differences in their DNA in the 9 pairings and are found in all possible combinations with each other.

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The order name phthiraptera means essentially "louse", making lice one of the few groups of insects that are named for themselves. true

The order name Phthiraptera comes from the Greek words "phtheir" meaning louse and "aptera" meaning wingless, thus essentially meaning wingless lice. This order includes over 5,000 species of parasitic insects that are commonly known as lice.

Lice are indeed one of the few groups of insects that are named after themselves, as their name is derived from the Old English word "lūs". Other examples of insect groups named after themselves include the flea order Siphonaptera and the bed bug family Cimicidae.

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Answer:

Ice is less dense than water

Explanation:

Whenever a substance floats on top of another it has to be less dense.

Answer:

The correct option is False

Explanation:

During preparation of some reagents, that involves the use of harmful constituents like concentrated acids, students (high school students) may be prevented from entering the chemical preparation/storage area until the preparation is completed and the area is area deemed safe for students. Students may also be prevented from entering the preparation/storage area if a student does not wear the appropriate protective wear during preparation of reagents or during "trial-runs" of reagents. For example, diethyl ether has a choking smell and if a student doesn't wear a face mask, the student may be seriously affected (health-wise) by this choking substance which is hazardous when inhaled in high concentration.

You are not allowed to enter the chemical preparation/storage area any time you need to get an item. Access to this area is restricted to authorized personnel only. This is because the chemicals stored in this area can be dangerous if not handled properly. Hence the statement is False.

To enter the chemical preparation/storage area, you must first obtain permission from the lab supervisor. You will then be given a safety briefing on the hazards of the chemicals in the area and the proper procedures for handling them. Once you have been briefed, you will be allowed to enter the area, but only for the purpose of getting the item you need.

It is important to follow all safety procedures when entering the chemical preparation/storage area. This includes wearing the appropriate personal protective equipment (PPE), such as gloves, goggles, and a lab coat. You should also be careful not to spill any chemicals, and you should dispose of any hazardous waste properly.

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Answer:

Trichinosis is a food-borne disease caused by a microscopic parasite called Trichinella. People can get this disease by eating raw or undercooked meat from animals infected with the parasite. Often these infected meats come from wild game, such as bear, or pork products.

Answer:

Trichinellosis, also called trichinosis, is a disease that people can get by eating raw or undercooked meat from animals infected with the microscopic parasite Trichinella.

Hybrids hide one expression of a trait that reappears when hybrids are self-crossed because of segregation.

Segregation refers to the separation or sorting of different alleles during the formation of gametes (reproductive cells). In hybrids, one allele for a specific trait may be dominant and masks the expression of the recessive allele.

However, when hybrids are self-crossed, the alleles segregate during gamete formation, resulting in the re-emergence of the hidden trait. This is due to the fact that each parent contributes one allele for each trait to their offspring, and during meiosis, the alleles segregate independently into different gametes. As a result, the hidden trait can reappear in the offspring of the self-crossed hybrids.

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The correct question is:

Fill in the blanks:

Hybrids hide one expression of a trait that reappears when hybrids are self-crossed because _________.

Answer:

D

The cell is 80% water, and the cell's environment is 20% water.

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חו

Explanation:

The cell is 80% water, and the cell's environment is 20% water.

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חו,

The part of the spinal cord that passes sensory information, besides the posterior root, is the dorsal column.

The spinal cord has various pathways for transmitting sensory information. Although the posterior root is the most common structure associated with sensory information transmission, the dorsal column is another important part of the spinal cord that plays a role in passing sensory information. It is responsible for transmitting touch, pressure, and vibration sensations from the body to the brain.

If Elena is unable to feel the stimulation Natalia checked for, it may be related to the dorsal column of her spinal cord, which is responsible for passing specific types of sensory information.

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Answer: D

Explanation:cells cannot change their external environment to maintain homeostasis. They communicate with other cells via cell signaling, they take up nutrients for sustainability and growth, cells also breakdown unwanted molecules as a way of waste management.

The covalent bond between an amino acid (AA) and its tRNA is best described as a glycosidic bond. A glycosidic bond is a type of covalent bond that joins a sugar molecule to another molecule, which in this case is an amino acid.

This bond forms between the carboxyl group of the amino acid and the 3' hydroxyl group of the tRNA, resulting in the formation of an aminoacyl-tRNA molecule. The peptide bond, phosphodiester bond, and hydrogen bond are all types of covalent bonds that play different roles in biological systems. Peptide bonds are the covalent bonds that link amino acids together in proteins, while phosphodiester bonds are found in nucleic acids, joining nucleotides together to form DNA and RNA. Hydrogen bonds are weak bonds that form between different molecules, such as between base pairs in DNA.

In summary, the covalent bond between an amino acid and its tRNA is a glycosidic bond. This bond is crucial for the proper function of tRNA in translation, allowing the correct amino acid to be delivered to the growing polypeptide chain. Understanding the different types of covalent bonds in biological systems is essential for understanding how macromolecules such as proteins and nucleic acids are formed and function.

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The evolutionary steps in order are:

1. Vascular non-seed plants evolve

2. Vascular seed plants evolve (gymnosperms)

3. Vascular flowering plants evolve (angiosperms)

4. Non-vascular plants evolve

The correct order of the evolutionary steps is as follows: The first step is the evolution of vascular non-seed plants. These plants possess specialized tissues for conducting water and nutrients but do not produce seeds. Examples include ferns and horsetails.

The next step is the evolution of vascular seed plants, known as gymnosperms. Gymnosperms have vascular tissue and produce seeds that are not enclosed in a fruit. Examples include conifers like pine trees and spruces.

The third step is the evolution of vascular flowering plants, also known as angiosperms. Angiosperms are the most diverse group of plants and produce flowers and fruits. They have specialized structures for sexual reproduction and enclose their seeds within fruits. Examples include roses, apple trees, and grasses.

The final step is the evolution of non-vascular plants, often referred to as bryophytes. These plants lack true vascular tissue and include mosses, liverworts, and hornworts. It is important to note that these evolutionary steps occurred over millions of years, with each group building upon the innovations of the previous group, leading to the diverse plant kingdom we see today.

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Answer:

c

Explanation:

Answer:

B

Explanation:

Diatomic molecules are molecules composed of only two atoms, of the same or different chemical elements. The prefix di- is of Greek origin, meaning "two".

The word "di" means two, and "diatomic" means a molecule with two atoms that is present in Option B. Diatomic molecule may consist of similar atoms or may have different atoms, such as nitrogen oxide.

Diatomic molecules are those that have two atoms within the molecule, such as hydrogen (H₂), nitrogen oxide, etc. In a single compound, there are many atoms that are present, and they make different bonds with each other, such as the covalent bond.

Aside from the covalent bond, there are other types of bonds, such as ionic bonds, but not all types of elements that are present in the periodic table can form the diatomic molecule. The homonuclear diatomic molecule is hydrogen, where two hydrogen atoms are present, and an example of the heteronuclear diatomic molecule is nitrogen oxide, where nitrogen and oxygen atoms are present.

Hence, the correct answer is option B, which is a diatomic molecule with two atoms.

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it's very practical, because it's on base 10, so conversion between stuff like meters to kilometer is always just a multiplication with 10 to some power

like 1 km = 1000m (10³m)

or 1 m = 10^-3km = 0.001km

same reason for other SI units.

except time, that's base 60, or 12, or 24. that's more complicated, but there isn't any real competition

The statements that are true about the eukaryotic cell cycle are:

The eukaryotic cell cycle consists of various stages and events. Here are the correct statements:

Cells that have fully differentiated and no longer divide are said to be in G0 phase. G0 phase represents a non-dividing state where cells have exited the cell cycle and are in a quiescent stage.

There are three phases of interphase called: G1 phase, S phase, and G2 phase. Interphase is the longest stage of the cell cycle, where the cell prepares for division. G1 phase involves cell growth and preparation for DNA replication, S phase is the synthesis phase where DNA replication occurs, and G2 phase is the preparation for cell division.

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Your anwser is: The water is contaminated with animal waste. I hope this helped and Merry Christmas to you!

Temperature is vital for successful beer and wine making  is it so important because in this process bacteria are very helpful and important factor and for them temperature must be minimized.

In the formation of beer bacteria plays a vital role as they totally perform a function and due to this there is a change in the taste and concentration of the beer.Temperature is vital for successful beer and wine making is it so important because in this process bacteria are very helpful and important factor and for them temperature must be minimized.

The process by which wine has been  prepared is known as fermentation and ethanol has a colourless liquid which catches fire easily and it has been produced by the process of the natural fermentation of the sugars or alcohol. Ethanol has been also known as the alcohol which has colourless and slightly toxic chemical compound and the ethanol forms water as well as carbon dioxide.

Therefore, Temperature is vital for successful beer and wine making  is it so important because in this process bacteria are very helpful and important factor and for them temperature must be minimized.

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The number that represents DNA synthesis in the figure would be II.

DNA synthesis happens at the S phase in the interphase of the cell cycle, just after the G1 or cell growth phase and before the G2 or protein synthesis phase.

During the S phase, the amount of DNA in the cell doubles as replication of DNA takes place. However, the number of chromosomes remains constant.

The doubling of the amount of DNA is responsible for the sharp rise in the line that represents the amount of DNA in the figure. Thus, the region of a steep rise in the amount of DNA would represent the DNA synthesis phase.

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100 mL of water with 10 grams of sugar dissolved has a higher concentration than  100 mL of water with 1 gram of sugar dissolved.

In simple terms, concentration means the amount of solute present in a given solvent. Since here, in both cases, the volume of solvent i.e water is constant only the solute amount is changes. There on increasing the amount of solute, the concentration of the solution will increase.

Concentration is the abundance of a constituent divided by way of the full volume of an aggregate. numerous sorts of mathematical descriptions can be prominent: mass awareness, molar awareness, quantity attention, and extent attention. The attention of a substance is the quantity of solute found in a given quantity of answers. Concentrations are generally expressed in terms of molarity, described because of the range of moles of solute in 1 L of solution.

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