_____ can shrink the brain and lead to premature death.

A phenylalanine amino acid-attached trna will enter the a site of the ribosomes if a trna with a histidine amino acid attached is in the  site.

The biological protein synthesis process is carried out by ribosomes, which are macromolecular machinery present in all cells (mRNA translation). Polypeptide chains are created by the assembly of amino acids by ribosomes in the order dictated by the codons of messenger RNA (mRNA) molecules. The short and big ribosomal subunits are ribosomes two main building blocks. Numerous ribosomal proteins and one or more ribosomal RNA (rRNA) molecules make up each subunit (RPs or r-proteins). The translational apparatus includes ribosomes and any related compounds.

Transcription creates a messenger RNA chain from the DNA sequence that specifies the order of the amino acids in a protein. Ribosomes attach to messenger RNAs and use their sequences to determine the proper order of amino acids to produce a particular protein.

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The best characteristic of clonal selection is the production of identical B cells that produce antibodies to the same antigen that is present in the second option. So option B is the correct answer to this.

When a pathogen attacks the body, immune cells try to kill it; however, if the pathogen crosses the body's innate immunity barrier, cell-mediated immune cells take over. Neutrophils and macrophages encounter that pathogen, which is later represented to the T cell by the macrophage (APC). The T cell later activates the B cell, and the B cell differentiates to make its clone, and the B cells secrete antibodies for the same antigen.

Hence, The best characteristic of clonal selection is the production of identical B cells that produce antibodies to the same antigen that is present in the second option.

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Answer:

Flagella

Explanation:

Flagella s used for movement in cells but ressembles

Enzo's conclusion regarding the primates is most likely to be that they are less irritable now that they have more habitat to spread out.

The construction of the wire tunnel that runs through the trees and connects to a second habitat on the opposite side of the park gives the primates such as orangutans greater room to roam and explore, which can lessen the likelihood of fights and violent behavior.

Consequently, it is reasonable to infer that the greater space and more habitat offered to them are the causes of the decrease in conflicts between Kwame and Ikon.

Therefore, the correct option is A.

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Both nuclear and chemical equations are balanced according to the total mass before and after the change.

In every equation or reaction, the total mass of the reactants must be equal to the total mass of the products. In other words, all reactions - be they chemical or nuclear - must obey the law of conservation of mass.

The law of conservation of mass states that mass can neither be created nor destroyed, but can be converted from one form to another during a reaction.

Thus, in order to balance reactions involving chemical or nuclear reactants, the total mass before the reaction must be equal to the total mass after the reaction.

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Answer:

A nuclear equation is balanced according to mass number. A chemical equation is balanced according to the total mass before and after the change.

Explanation:

Both equations are not balanced according to the total mass.

Answer:

The answer is side chain/group.

Answer:

d

Explanation:

Peptide bonds are used to join amino acids in a certain order determined by the nucleotide sequence in the DNA or RNA template to create polypeptide chains.

The distinctive characteristics of the resultant protein are determined by the amino acid sequence. Lanine, arginine, asparagine, aspartic acid, cysteine, glutamine, glutamic acid, glycine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, proline, serine, threonine, tryptophan, tyrosine, and valine are the twenty different amino acids that can be used to create a polypeptide chain.

A linear chain of amino acids joined by peptide bonds is referred to as a polypeptide chain. Each amino acid has a distinct side chain, an amino group, and a carboxyl group.

Amino acids are chemical molecules. The genetic code, which regulates the arrangement of nucleotides in a gene, determines the sequence of amino acids in a polypeptide chain.

Protein synthesis takes place in the ribosomes of cells and results in the formation of polypeptide chains. The messenger RNA (mRNA) nucleotide sequence is read by the ribosome, which then uses this data to construct a chain of amino acids in the proper sequence.

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Answer:

3 2

Explanation:

Answer: new nutrient-rich soil made of cyanobacteria and deteriorating rock

abundant sunlight for photosynthesis

Explanation:

Answer:

the last answer

Explanation:

because f,g,h both come from a so you can be sure

Answer:

More tissues.

Explanation:

Each organ is made up of several different types of tissue. Therefore, for every organ in the body, there are many more tissues.

Answer:

15. Cedrus

16.Both 2&3

17.Diploid

18.Both 2 &3

#15

One type of tallest tree is pinus.

#16

In Gymnosperms pollination generally occurs by Both (2) and (3)

#17

The ploidy of a gemate present in the pollen grain is polypoid.

#18

In gymnosperms ,the pollen tube discharge the male gemates in the ovary

Answer:

Explanation:

it could get rearanged atoms move to make objects like a dimaond is just carbon aranged different

The rat gets eaten by a bird, indicate that an atom, that was once part of the rat's body can become part of a bird's body.

The plants are producer that makes their own food in the presence of sunlight. The grasshopper which is primary consumer eats plants. The grasshopper gets eaten by the secondary consumer, rat. The tertiary consumer which is a bird will the eat this rat.

Hence, according to law of conservation of matter, an atom, that was once part of the rat's body can become part of a bird's body.

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Answer:

Some questions that can be asked:

1) How does the vaccine work and prevent diseases?

2) Can some people become allergic or have a negative response to vaccines, and How does this work?

3) What causes some vaccines to not work 100% effectively?

4) How do people create vaccines?

I'm not sure if this is what you were asking for, hopefully, this helps.

Answer:

the plants will overgrow/overpopulate which causing overcrowding of other plant species

Explanation:

The end products produced by bacterial reduction of nitrate include nitrite, ammonia, nitrogen gas, nitric oxide, nitrous oxide, and hydroxylamine.

An organism's capacity to reduce nitrate is assessed using the image result of the nitrate reduction test. Nitrate can be reduced by the enterobacteriaceae family.It is used to test whether an organism is capable of using the enzyme nitratase to convert nitrate (NO3-) to nitrite (NO2-) or other nitrogenous chemicals (also called nitrate reductase). The identification of both Gram-positive and Gram-negative species depends on this test.

The end products produced by bacterial reduction of nitrate include nitrite, ammonia, nitrogen gas, nitric oxide, nitrous oxide, and hydroxylamine. The type of bacteria present and the surrounding factors influence the final outcome that is seen.A large number of enteric bacteria can also catalyze the conversion of nitrate to N2 gas (denitrification) when anaerobic conditions are present, or they can convert nitrate to ammonia via two-step assimilatory or dissimilatory pathways.

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Answer:

I think it's a small amount of ATP

The term for the regulatory effects of substrates on allosteric enzymes is "substrate-level regulation."

In substrate-level regulation, the substrate molecules themselves act as regulatory molecules that influence the activity of allosteric enzymes. This regulation occurs when the binding of a substrate molecule to the allosteric enzyme's active site affects the enzyme's conformation and alters its activity. This mechanism allows the enzyme to respond to changes in substrate concentration and adjust its catalytic activity accordingly. Allosteric enzymes are a type of enzyme that undergoes changes in activity and conformation upon binding of a regulatory molecule at a site other than the active site. These regulatory molecules, known as allosteric effectors, can be either activators or inhibitors, and they modulate the enzyme's activity by inducing conformational changes.

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Answer:

The science is very important in the evolution and the improvement of the lifestyles of the human being. The researches in the sciences help in providing conclusions, which are helpful in day to day life. The technologies and innovations make life easier by providing various tools and techniques. Also, the researches in the science provide chance to improve lifestyle by providing scientific knowledge to improve the ethics, education, justice, aesthetics etc.

Explanation:

Brainliest please!

Cross-dating is the most fundamental guideline of dendrochronology. Cross-dating is a procedure that guarantees every individual tree ring is relegated to its definite year of development.

This is achieved by matching examples of wide and restricted rings between centers from a similar tree, and between trees from various areas.

Dendrochronology is a dating procedure that takes advantage of the yearly development augmentations of trees to give an exact gauge of the age (or period since arrangement) of a wood test. New cells, framing a ring, are added to the external piece of a tree trunk during each developing season.

Dendrochronology, additionally called tree-ring dating, is the logical discipline worried about dating and deciphering previous occasions, especially paleoclimates and climatic patterns, in light of the examination of tree rings.

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The correct answer is A drought that kills most of the grass. An environment may be described as an organic network or area that incorporates all residing organisms (biotic factors) and the bodily environment (abiotic factors) with which they interact.

Basically, an environment offers the subsequent important offerings which are very critical for the sustenance of lifestyles for all residing organisms;

This in the long run implies that manufacturers are normally the muse of a food chain and are constantly determined on the top (first layer) of the food chain. In this wasteland meals chain, the grass is the manufacturer and is key for the survival of the alternative residing organisms i.e the grasshopper, mouse, and owl.

In an environment, manufacturers confer with the residing organisms able to produce their personal meals and might offer power or meals for different residing organisms (consumers) in a meals chain.

Hence, a drought that kills maximum of the grass is an alternate withinside the environment that might have the best terrible impact on the alternative residing organisms (grasshopper, mouse, and owl).

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Answer:

The correct answer to the question is D suboptimal temperatures

Explanation:

I know trust me i took the test and got it right 229 999 0523

Answer: why it is hard to use dichotomous key in the lab are;

If the organisms you want to use it for are similar.

If you can't see the little characteristics posses by the organisms you are using it for.

If all the pictures does not reveal all the important features of the organisms.

It is very difficult to use it to determine the anatomical structure.

Explanation:

Dichotomous key is an important method that is use in biology to identify organisms by separating or dividing the organisms into two groups. It is a tool created by scientists to help them identify organisms or objects. Once the organisms are group into two, more information is revealed more individually.

Answer:

The person who commented before me was correct. They should get brainliest. Below is the same thing they wrote just in paragraph form.

If the organisms you want to use it for are similar. If you can't see the little characteristics posses by the organisms you are using it for. If all the pictures does not reveal all the important features of the organisms. It is very difficult to use it to determine the anatomical structure.

A single molecule of pyruvate will generate 15 ATP molecules.

Pyruvate is an important chemical constituent according to biochemical science. It is the molecule that is produced from glycolysis, a process by which energy is derived from glucose. The carboxylate group of pyruvate is removed as carbon dioxide. The synthesized acetyl group is stimulated through its association with Coenzyme-A, thus, producing Acetyl Coenzyme-A.

The TCA cycle generates 15 ATP molecules through oxidation of Acetyl Co-A. Through oxidative decarboxylation as well as Krebs cycle, a single molecule of pyruvate (containing 3 Carbon atoms) gives rise to 4 molecules of NADH, a single molecule of FADH2 as well as one molecule of ATP.

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Elements like oxygen and sulfur, which can accept two electrons and form a -2 charge, will successfully create a 1:1 bond with magnesium.

Magnesium (Mg) is an alkaline earth metal found in Group 2 of the periodic table. It has an atomic number of 12 and is known for its ability to form ionic compounds. To create a 1:1 bond, we need to consider the valence electrons and the bonding capacity of the other elements.

Magnesium has two valence electrons and tends to lose these electrons to achieve a stable electron configuration. When Mg loses two electrons, it forms a +2 charge (Mg²⁺). To create a 1:1 bond, the other element should ideally be able to accept two electrons, forming a -2 charge.

Some elements that can form a 1:1 bond with magnesium include:

1. Oxygen (O): Oxygen is in Group 16 of the periodic table and has six valence electrons. It needs two more electrons to achieve a stable configuration. When oxygen gains two electrons, it forms a -2 charge (O₂⁻), resulting in a 1:1 bond with magnesium (MgO).

2. Sulfur (S): Sulfur is also in Group 16, with six valence electrons. Similar to oxygen, it requires two more electrons to become stable. When sulfur gains two electrons, it forms a -2 charge (S₂⁻), leading to a 1:1 bond with magnesium (MgS).

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Rocky bought 9 mixed cartons of eggs classified by grade 4-8 based on weight and sorted them.

Chicken eggs are classified by grades 4, 5, 6, 7, or 8 based on weight. Mixed cartons can contain eggs from any grade. Rocky purchased nine mixed cartons of chicken eggs for a science project. Rocky then sorted the eggs according to their weight. He may have used an egg scale to measure the weight of each egg.

The egg weight determines its grade. After sorting the eggs, Rocky could have identified how many eggs are in each grade and made calculations based on the eggs' weight. This is because the eggs are graded by weight, which makes it easier to find out how many eggs of each weight are in the carton.

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Answer:

The Cell is the basic structural and functional unit of all living organisms. Each cell has the capacity to perform basic functions that are characteristics of all living forms

Explanation:

There are two types of cells:

The Various functions of cell are :

Answer: yea im  or re.tarded

Explanation:

Answer:

Deoxyribonucleic acid is a molecule composed of two polynucleotide chains that coil around. RNA strands are created using DNA strands as a template in a process called transcription,

Explanation: