which of the following is not a threat to biodiversity?
1. pollution and contamination
2. over hunting and over fishing
3. conservation and preservation
4. habitat loss and destruction

Anwser: Methionine-Proline-Glutamate.

The chain of amino acids would be produced by the given sequence of mRNA is as follows:

Amino acids may be defined as the building blocks or monomers of proteins. They usually consist of an amino group, a carboxyl group, a hydrogen atom, and a distinctive side chain. These monomers are held together by peptide bonds in order to make a protein.

The codon UAU codes for the amino acid tyrosine. While the codon GCC codes for the amino acid alanine. There are three stop codons that terminate the synthesis of proteins. They are UAA, UGA, and UAG. While the codons GUG, AAU, and UGC encode for valine, asparagine, and cysteine.

Therefore, the chain of amino acids would be produced by the given sequence of mRNA is well described above.

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Answer: the four layers of earth are: the inner core, the outer core, the mantel, and the crust. The inner core contains the heaviest elements and solid metals. The outer core is liquid and not as hot than the inner core. The mantel is the densest its solid but moves and that causes the earth quakes on the surface. The crust is the thinnest which is different under the ocean and on the continents. Its the coolest of all four  and it consists of plates that are moving.

Explanation:

The transversion or transition that seems to be induced by cigarette smoke is due to tranversions.

A mutation has been known as the result of the changes in the structure of a gene, these variations would be happened in the nucleotide sequence of the genome, and it can be as the consequence of DNA damage.

One type of the DNA mutation has the substitution of one base pair for another. Two type of the substitutions that could be happened. One of them are the transversions, which are interchanges of a purine (A or G) for a pyrimidine (C or T) and vice versa.

Therefore, The transversion or transition that seems to be induced by cigarette smoke is due to tranversions.

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Answer:

Most rainforests are structured in four layers: emergent, canopy, understory, and forest floor.

Answer: 864 yellow 288 green

Explanation:

Answer:

The correct answer is D) Biosphere. The biosphere is the part of the earth that supports life. It includes all of the living organisms on earth, as well as the air, water, and soil that they depend on. The lithosphere, hydrosphere, and atmosphere are also important parts of the earth, but they do not directly support life in the same way that the biosphere does.

Explanation:

The basic elements of the nervous system are called neurons (Option C).

The neuron cells of the nervous system are the most important cells of this organ system which are responsible for receiving and sending messages to the brain and thus transducing the signals from the surrounding environment

These cells (the neuron cells of the nervous system) are also known as nerve cells due to their relative importance in this organ system and s they receive sensory signals from the surrounding conditions and also motor executive functions to the muscle cells.

Therefore, with this data, we can see that the neuron cells of the nervous system are the most important cells of the nervous system whose main function is to transmit messages from the surrounding input environment to functions that are processed into the brain.

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Answer:

completely remove or get rid of (something)

Answer:

the act of considering and rejecting each possible choice until only one is left or removing soming. for example in squid games everyone got killed/eliminated at the end but ONLY ONE won.

The cortical areas indicated by E are involved in the functions of the production and interpretation of language.

The true choice is A.

The most important part of the brain in language activities is the cerebrum. The part of the cerebrum that is directly involved in language processing is the cerebral cortex. The cerebral cortex is the part that looks like white lumps and is the largest part of the human brain system. This section regulates or manages cognitive processes in humans, and one of them, of course, is language.

The cerebral cortex consists of two parts, namely the left hemisphere and the right hemisphere. The right hemisphere controls the processing of spatial and visual information (seeing, coloring, or perceiving spaces or objects in three dimensions). While the left hemisphere controls language activities besides, of course, other cognitive processes. Coordination between the two is possible because of the structure that identifies these two parties, namely the corpus callosum.

This question is accompanied by an image.

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He found fossils in top where it should be miles below.

Charles Darwin’s describe a lot of time as the key to the

formation of mountains.

Charles  Darwin was an English naturalist, geologist, and biologist, widely known for his contributions to evolutionary biology.

Charles  Darwin proposed that all species of life have descended from a common ancestor is now generally accepted and considered a fundamental concept in science.

Charles  Darwin  first presentation following his voyage on the HMS Beagle, he attempts to document his evidence of gradualism – an idea he learned about from reading Charles Lyell’s book Principles of Geology found fossils in top where it should be miles below. So he concluded that a lot of time as the key to the formation of mountains.

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Answer:

The signaling molecules used in endocrine signaling are called hormones. Hormones are chemical messengers that are produced by glands in the endocrine system and released into the bloodstream, where they can circulate throughout the body and regulate the function of various organs and tissues. Some examples of hormones include insulin, thyroid hormone, and estrogen.

Explanation:

The restriction enzymes when combined with the DNA containing restriction sites lead to cuts at those sites yielding restriction fragments. The second statement is correct.

The restriction enzymes are the enzymes that recognize specific sites known as restriction sites. These are enzymes that are found in bacteria and this feature is used as a modern biotechnology tool for genetic editing.

There are two ways the ends are formed after the action of a restriction enzyme. It can form blunt ends or sticky ends. The sticky ends have a region at the end that is single-stranded. This region can then join according to the complementary base pairing with another strand having complementary sticky ends.  

If it is assumed that the RE (restriction) enzyme is not interrupted during the generation of restriction fragments, the resulting restriction fragments would not yield more restriction fragments when re-incubated with the RE enzyme.

A restriction enzyme cuts only at restriction sites forming restriction fragments that do not yield more restriction fragments on subsequent action of the restriction enzyme.

In conclusion, the action of restriction enzymes on DNA gives smaller fragments of DNA. The second option is correct.

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Result of F1 cross:

Genotypes of F2 offspring would be 1 TTRR, 2 TTRW, 2 TtRR, 4 TtRW, 1 TTWW, 2 TtWW, 1 ttRR, 2 ttRW, and 1 ttWW

The phenotypes of F2 offspring would be tall and red-flowered, tall and white-flowered, tall and pink-flowered, short and red-flowered, short and white-flowered, and short and pink-flowered.

The cross is between two TtRW plants. The height (Tt) exhibits simple dominance/recessiveness while the color (RW) exhibits incomplete dominance.

TtRW gametes: TR, TW, tR, and tW

Crossing two TtRW:

        TtRW    x    TtRW

Offspring genotype and phenotype

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Answer: C. A large amount of data supported his work.

Darwin did not know that genetics existed, but he did collect evidence from birds with a common ancestor and theorized that they split because of evolution.

Have a good day!

The one strength of Darwin's theory is the large amount of data which is supported by his work. Thus, the correct option is C.

Darwin proposed a theory which describes that a species can change over time, that a new species come from the pre-existing species, and that all the species share a common ancestor. In this model of Darwin, each species has its own unique set of heritable or genetic differences from the common ancestor, which have been accumulated gradually over a period of very long period of time.

Darwin used multiple lines of evidence to support his theory of evolution of population through natural selection such as fossil evidence, biogeographical evidence, and anatomical evidence. The one strength of Darwin's theory is the large amount of data which is supported by his work.

Therefore, the correct option is C.

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Answer:

Cellular respiration is a series of chemical reactions that convert the energy in food molecules into energy stored in the molecule ATP. Aerobic respiration requires the presence of Oxygen and releases water and carbon dioxide as waste products.

Explanation:

The statement which provides evidence about the decreased rate of cell division is B)Decreased affinity of growth factor receptors for their respective ligands. So, correct option is B.

In each of the 4 tissues, there was a critical decline in cell division rates with age. Conversely, cell division rates didn't diminish in that frame of mind of matured mice, and just little abatements were seen in their small digestive tract or throat. These outcomes have significant ramifications for grasping the connection between ordinary undeveloped cells, maturing, and disease. Besides, they give a conceivable clarification to the baffling age-subordinate deceleration in disease frequency in exceptionally old people however not in mice.

Another assessment of recently distributed information recommended to us that the amassing of changes could slow, as opposed to increment, as people age. To make sense of this surprising finding, we estimated that ordinary undifferentiated cell division rates could diminish as we age. To test this speculation, we assessed cell division rates in the epithelium of human colonic, duodenal, esophageal, and back ethmoid sinonasal tissues.

Hence, correct option is B.

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(Complete question) is:

Research on aging suggests that as cells age, their rate of cell division decreases until they ultimately no longer divide. Which of the following would provide evidence that the decreased rate of cell division is a cellular response related to cell signaling?

A. Decreased numbers of cytoplasmic ribosomes

B. Decreased affinity of growth factor receptors for their respective     ligands

C. Decreased hormone production in aged cells

D. Decreased ATP production in aged cells

Answer:

D

Explanation: Biospheres

Genotype alludes to the alleles you have for a specific quality or set of qualities. phenotype is the actual quality itself, which might be affected by genotype and natural variables.

The term "phenotype" alludes to the detectable actual properties of a life form; these incorporate the organic entity's appearance, improvement, and conduct. An organic entity's not entirely set in stone by its genotype, which is the arrangement of qualities the living being conveys, as well as by natural impacts upon these qualities.

A singular's genotype is the blend of alleles that they have for a particular quality. A singular's aggregate is the mix of perceptible attributes or qualities. While a living being's genotype is straightforwardly acquired from its folks, the phenotype is just impacted by the genotype.

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A sharp increase in capillary hydrostatic pressure would directly cause an increase in fluid movement to the interstitial spaces.

Capillary hypertension causes the production of a protein-poor ultrafiltrate, which when it enters the interstitial space increases the amount of the interstitial fluid.

A rise in small artery, arteriolar, or venous pressure raises capillary hydrostatic pressure, which favors filtration. Fluid filtration will be reduced if the hydrostatic pressure gradient (PC - Pi) reduces due to an increase in interstitial pressure. Large rises in tissue interstitial pressure, on the other hand, can cause tissue damage and cellular death.

Edema occurs when plasma oncotic pressure falls, hydrostatic pressure rises, capillary permeability rises, or a combination of these variables occurs. When lymphatic flow is impeded, edema can develop.

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a) The mass of the oxygen is 1.97 g

b) The percent yield is 90.4 %

c) The mass of the oxygen is 1.55 g

We know that the percent yield has to do with the amount of the reactants that has been converted into products in the given reaction. In this case, the reaction that we are dealing with is the decomposition of the potassium oxo chlorate V molecule.

Now we have that;

a) Number of moles of the chlorate = 5 g/122.5 g/mol

= 0.041 moles

If 2 moles of the chlorate produces 3 moles of the oxygen

0.041 moles of the chlorate produces 3 moles * 0.041 moles/ 2 moles

= 0.0615 moles

Mass of the oxygen produced = 0.0615 moles * 32 g/mol

= 1.97 g

b) Percent yield = Actual/Theoretical * 100/1

=  1.78/1.97 * 100/1

= 90.4 %

c) For a percent yield of 78.5% =

Actual = Percent yield * Theoretical /100

= 78.5 * 1.97/100

= 1.55 g

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% yield = (1.78 g / theoretical yield) × 100%

To calculate the percent yield, you need to know the actual yield and the theoretical yield of the reaction.

In this case, the actual yield is given as 1.78 g of O₂. The theoretical yield represents the maximum amount of product that can be obtained under ideal conditions.

To calculate the theoretical yield, you need to know the balanced chemical equation for the reaction. Assuming the reaction is complete, the coefficients of the balanced equation can be used to determine the stoichiometry of the reaction.

For example, if the balanced equation is:

2 A + 3 B → 4 C + 2 D

Then, you can use the stoichiometry to find the theoretical yield. Let's say the molar mass of O₂ is 32 g/mol. In this case, we need to calculate the moles of O₂ using the given mass of 1.78 g:

moles of O₂ = mass of O₂ / molar mass of O₂

Next, we need to use the stoichiometry to find the moles of the desired product. Let's assume that O₂ is the limiting reactant and that it is completely converted to the product. From the balanced equation, we can see that 4 moles of C are produced for every 2 moles of O₂:

moles of C = moles of O₂ × (4 moles of C / 2 moles of O₂)

Now that we have the moles of C, we can calculate the theoretical yield of C in grams by multiplying the moles by the molar mass of C.

theoretical yield of C = moles of C × molar mass of C

Finally, we can calculate the percent yield using the formula:

% yield = (actual yield / theoretical yield) × 100%

Substituting the values we calculated:

% yield = (1.78 g / theoretical yield) × 100%

Please note that without the balanced chemical equation and additional information, it is not possible to provide a specific numerical answer for the percent yield.

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The false statement about dinoflagellates is their fossil remains form limestone deposits.

Thus, the correct answer is E.

Dinoflаgellаtes аre motile unicellulаr аlgаe chаrаcterized by а pаir of flаgellаe. Mаny dinoflаgellаtes аre photosynthetic, whereаs others аre mixotrophic. Whereаs most аre strictly mаrine, some dinoflаgellаtes occupy brаckish аnd freshwаter environments.

Dinoflаgellаtes аlso exhibit remаrkаble trаits: In аddition to chlorophyll, some possess cаrotenoid pigments (dinoxаnthin аnd peridinin), giving them а flаmboyаnt red colorаtion, whereаs others аre bioluminescent. Some species form blooms in the oceаns, а phenomenon cаlled “red tide” due to colorаtion of the wаter resulting from the intense concentrаtion of аlgаl cells. Dinoflаgellаtes аre encrusted with plаtes mаde of а cellulose-like mаteriаl аnd silicа.

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Answer:

(1) The variable that should be changed is the temperature.

(2) The variable that should be measured is the germination rate of the seeds.

(3) The 3 important variables that should be kept constant are the type of seeds, the amount of water, and the amount of light. In order to isolate the effect of temperature on seed germination, it is important to keep these other variables constant so that they do not affect the results of the experiment.

Answer:

B

Explanation:

For more proof look at the second image

A protein complex is a sub-atomic machine that comprises a few proteins (nucleic acids and different particles) that tight spot each other at a similar spot and time (e.g., record factors, histones, polymerases, and so forth.).

An electron transport chain is an assortment of protein edifices and different particles that utilize redox responses to energize an electron from electron givers to electron acceptors while likewise moving protons across a layer. Electrons are moved to start with one particle and then onto the next in the electron transport chain, and the energy delivered during these electron transporters is utilized to frame an electrochemical slope. The put-away energy in the angle is utilized to deliver ATP in chemiosmosis.

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The rank of particles in order according to size, with the smallest at the top and the largest at the bottom:

1. Protein

2. T2 bacteriophage

3. Influenza virus

4. E. coli bacterium

5. Eukaryotic cell

Protein- 3-6 nm, Proteins are in charge of nearly every aspect of cellular life, including the internal organization and shape of cells, the production of products, the removal of waste, and routine maintenance.

T2 bacteriophage- 60 nm, Enterobacteria phage T2 is a virus that infects and kills E. coli. It belongs to the family Myoviridae and the genus Tequatrovirus.

Influenza virus-  60 to 160 nm, An infection of the respiratory system's nose, throat, and lungs is known as the flu (influenza).

E. coli bacterium- 2000 nm, A Gram-negative, facultatively anaerobic, rod-shaped coliform bacterium belonging to the genus Escherichia.

Eukaryotic cell- 10,000 nm, eukaryote, any cell or organism with a distinct nucleus. The eukaryotic cell has an atomic layer.

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(complete question)

rank the following cells and particles in order according to size, with the smallest at the top and the largest at the bottom.

E. coli bacterium, Eukaryotic cell, T2 bacteriophage, Protein, Influenza virus

The reason behind fact and mechanisms of evolution remain a key part of our human present and future is because c) people have not stopped adapting biologically. So, correct option is c

When an animal varieties is adequately dependent on gaining from others for at any rate a few parts of its conduct collection, social developmental cycles can emerge, and these cycles can modify the climate looked by regular determination following up on qualities.

To foster models of social development, we start by taking the hypothetically grounded and exactly tried speculations about our gaining brain science — who individuals gain from and what they will generally deduce while learning — to build models that look at what happens when bunches of people are learning in these ways, and communicating over ages.

On account of their devotion and recurrence of purpose, human social abilities to learn are most likely one of a kind in leading to combined social development, the cycle through which learning collects fruitful changes and fortunate blunders over ages

Hence, correct option is c

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(Complete question) is:

We have learned that reliance on culture has increased in the course of human history. Yet the fact and mechanisms of evolution remain a key part of our human present and future because

A.

they provide the clues to building a better human race by promoting directed speciation.

B.

the pace of evolution has been continuously increasing, as human cultural solutions have not been able to keep up with environmental changes such as global warming.

C.

people haven't stopped adapting biologically.

D.

they continue to justify anthropology's biocultural perspective.

E.

they determine, at the genetic level, our phenotype.

When the dihybrid cross is made between two TtRW plants, then the ratio of genotype produced from this cross will be 3:6:3:1:2:1 (tall red: tall pink: tall white: dwarf red: dwarf pink: dwarf white).

Inheritance is the process through which genetic information is passed on from the parents to their offspring. This is possible through the gametes which fuse together to form zygote (2n). This zygote have similar characteristics to both of the parents.

In mendelian inheritance, complete dominance is observed which states that an allele could be completely dominant or completely recessive there is no in between.

However, some exceptions like incomplete dominance and codominance have been found later where, the presence of two contrasting alleles will lead to development of a phenotype which is in between the two.

In the F2 generation of the cross between the TtRW plants. The phenotype ratio will be 3:6:3:1:2:1 (tall red: tall pink: tall white: dwarf red: dwarf pink: dwarf white).

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Overall net gain of ATP in aerobic respiration per one molecule of glucose is between 30-40.

Aerobic respiration is the process of cellular respiration that takes place in the presence of oxygen gas to produce energy from food.

During aerobic cellular respiration, glucose reacts with oxygen, forming ATP that can be used by the cell. Carbon dioxide and water are created as byproducts.

Aerobic respiration provides energy to fuel all cellular processes. The reactions produce ATP, which is then used to power other life-sustaining functions, including growth, repair, and maintenance.

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