Which process produces a phase change for water molecules? What is the factor that drivers this process?

Answer:

14. (a) Pb

15. (d) Al

16. (A) increases

Explanation:

14.

In the reactivity series of metals an element can displace another element from a compound if and only if it is not placed below that metal, as the reactivity of metals decreases when moving from top to bottom- if a metal is placed below Hydrogen it means that it is less reactive than Hydrogen and hence cannot displace Hydrogen from its compound.

All options except A are placed below Hydrogen in the reactivity series, so they wont displace Hydrogen from its compound, but option (a) that is Pb can do so as it is above Hydrogen in the reactivity series.

15.

Al is placed below Mg in the reactivity series and hence cannot displace Mg from its compound.

16.

The reactivity of metals increases down the GROUP.

[CAUTION :- We were talking 'bout REACTIVITY SERIES in the top 2 questions where reactivity decreases down the group, but we're talkin' 'bout GROUPS of the periodic table here, where reactivity increases down the group.]

The size of metals increases down the group causing their valence electrons to drift far from the nucleus so that they can be lost easily. The metals have a property of losing electrons so the more electrons it can lose more will be its reactivity.

Hence, reactivity increases down the group.

Answer:

Cell is made of molecules whereas atoms make up molecules. Cells are the smallest functioning unit in a living organism.

Atom is the smallest unit of matter. Usually, a cell is on the micrometer scale while an atom is in the angstrom scale.

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Answer:

few species

Explanation:

in a complex one im not sure as to how the question measures complexity but a complex one may have more options and more things to adapt to

Answer:

weenie dog but the scientific name for it is a Dotson

Answer:

D) -4

This is because each term is four less than the previous term.

Explanation:

Answer:

D

Explanation:

because it is going down -4 every time

Answer:

Lipidation is a post-translational modification that occurs in the endoplasmic reticulum or Golgi apparatus to make proteins functional.

Answer:

Enhanced derivatives of barley chymotrypsin inhibitor-2 are known as Barley high lysine (BHL) proteins. BHL has tryptophan, threonine, and isoleucine in a folded structure similar as the tertiary structure of protein.

Derivatives of BHL are digestible in gastric juice and other fluid. Denaturation of these proteins shows proteins in gastric fluid minus pepsin which is looks as the secondary structure of protein. It has four soluble protein groups –

a) Albumins

b) globulin fraction in embryo and scutellary proteins

c) Prolamins

d) Glutelin

Answer:

Increased pollution in the air, water, soil.

Answer:

lol

xplanation:

Answer:

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Explanation:

hñkgdà34vkffjGydlkydkeutskdeut

Answer:

a. The maternal copy of UBE3A is expressed and the paternal copy is silenced.

Explanation:

When UBE3A chromosome is in neurons, paternal allele is silent and maternal allele is expressed in process of genomic imprinting. In some cases UBE3A is expressed from both paternal and maternal chromosomes. The paternal chromosome is blue whereas maternal chromosome is magenta.

Among the two options, the insect that leaves a distinct frass trail is the citrus leafminer (option a).

The citrus leafminer (Phyllocnistis citrella) is a small moth that infests citrus trees. Its larvae mine within the leaves, creating serpentine tunnels or trails as they feed on the leaf tissue. These feeding tunnels are often accompanied by visible frass, which is the excrement or waste material produced by the insect.

The distinctive frass trail left by the citrus leafminer is a characteristic sign of its presence and activity. As the larvae tunnel through the leaf, they push out frass along the length of the feeding tunnel. This frass appears as dark, winding lines or trails on the surface of the leaf, following the path of the larval mining activity.

On the other hand, the citrus peelminer (Marmara gulosa) is another insect that infests citrus trees but does not leave a distinct frass trail. The larvae of the citrus peelminer mine under the citrus fruit peel, causing irregular winding tunnels within the fruit. However, they do not leave visible frass trails like the citrus leafminer.

Therefore, when comparing the two options, the citrus leafminer (option a) is the insect that leaves a distinct frass trail, making it a useful diagnostic characteristic for identifying its presence and distinguishing it from other pests infesting citrus trees.

To learn more about citrus leafminer, here

https://brainly.com/question/33967117

#SPJ2

Answer:

animals are dying :( and people are hunting

Explanation:

Answer:

d. Ziehl - Neelsen's staining

Explanation:

The mycobacteria is stained with the Ziehl - Neelsen's staining. Hence, option (d) is the correct answer.

Answer:

plzzzz upload a full picture

Answer:

623 monomers

Explanation:

In a dehydration synthesis reaction, one water molecule is removed for every bond that is created between 2 monomers.

Linking 3 monomers together would remove 2 water molecules.

Following this pattern, the number of water molecules removed will always be one less than the number of monomers that were joined together.

So, if 622 water molecules were removed, then 623 monomers were joined together.

The answer is 623 monomers.

Answer:

c. independent variable

Explanation:

#carryonlearning

Answer:

Responding Variable is the

Explanation:

Answer: S-shaped back bo

Explanation: That was the only choice

Answer:

S-shaped back bone

Explanation:

pls mark as brainlists

Complete question:

Two species of closely related frogs are found in the same pond high in the Andes of South America. Both species only have teeth on the top jaw. One has small teeth for holding small live prey prior to swallowing. The other species has very large sharp teeth for injuring and killing large prey prior to biting off pieces of flesh for consumption. The above is an example of:

Answer:

Explanation:

Competition is an ecological and evolutive process very common in nature. Competition might be intra- or interspecific. Competition between different species in a community or ecosystem might be due to the same resource use, or the same territory, shelter, etcetera. When a resource is useful for two or more species, and limited, they compete to gain it.

The principle of competitive exclusion states that different species with the same requirements sharing the niche can not coexist indefinitely based on the same limited resource. When two competing species coexist, this is because of niche partitioning or niche differentiation.

Differentiation of effective niche is closely related to character displacement.

Character displacement is the result of interspecific competition, in which two or more species that live in the same habitat manage to avoid competition by developing different traits. Morphological divergence, or any adaptative trait development, fixated genetically, is the product of niche segregation. Species tend to differentiate morphologically in the presence of strong competitors. Traits divergence favors coexistence in the same place.

In the exposed example, both species live in the same pond. But to avoid competition and competitive exclusion, species developed different teeth sizes to feed on different prey items.  

Answer:

the heart stops pumping as much blood to the brain which will lower the amount of funtion.

Answer:

Precise time can be studied with the help of amount of carbon in the body. By measuring the amount of carbon in the body scientist can find the actual age of a material

Answer: Hello your question some missing data attached below is the complete question

answer:

P( first child having PKU )  0.25 ≤ x ≤ 0.5

Explanation:

The pedigree father has PKU ( pp ) ( From the top right )

pedigree mother = PP

The possible resultant progeny = Pp  

Resultant progeny marries non-carrier  ( Pp x PP ) = PP , PP, pP, pP

Hence B is either  ; PP ( non carrier ) or Pp ( carrier )

From left

one of the Resultant progeny = pp ( affected ). this simply means pedigree parents where both carriers or sufferers i.e. Pp or pp

Hence A is either ; Pp or pp

The probability of their first child having PKU

= PP x Pp = PP, Pp, PP, Pp ( probability = 0 in this case )

= Pp x Pp = PP, Pp, pP, pp ( probability = 1/4 * 100 = 25% )

= Pp x pp = Pp, Pp, pp, pp ( probability = 2/4 * 100 = 50% )

P( first child having PKU )  0.25 ≤ x ≤ 0.5

lets denote dominant Gene = PP,  recessive Gene = pp

Answer:

Phenotypic approach for bacterial identification

Explanation:

Bacterial identification can be done by conventional methods, which are based on phenotypical characteristics. These methods are much affordable and reasonable.

Phenotypical identification is based on bacteria´s observable characteristics, such as their morphology, development, and biochemical/metabolic properties.

It is important to consider that these methods do not provide absolute certainty. They can only indicate the genera or species to which the bacteria under study may belong.

Some primary evidence is usually used for fast bacteria identification:

Knowing that the bacteria in the exposed example was isolated and grown in culture, then Gram-stained and tested for biochemical reaction, we can assume that the approach for its identification is phenotypic.  

Answer:

a. Her mother has zig-zag antennae.

b. Her brother has zig-zag antennae.

Explanation:

Available data:

Maternal effect: Refers to the influence of the “environment provided by the mother” on the progeny phenotype. The mother´s genotype directly determines the progeny phenotype. Even though the progeny has a different genotype, it is irrelevant, as well as the father´s genotype or phenotype. This means that no matter what is the genotype of the offspring, all of them will express the same phenotype as their mother. The maternal effect is commonly seen in insects and might be seen in some mammals and plants.

So, if a female has zig-zag coils, this means that the mother also has zig-zag antennae and that all the brothers and sisters of this female ant have zig-zag antennae, independently of their genotype.

a. Her mother has zig-zag antennae ⇒ True. The trait is inherited from the mother.  

b. Her brother has zig-zag antennae ⇒ True. The whole progeny will express sig-zag antennae.

c. This female carries the zig-zag allele ⇒ Not necessarily.

d. This female's offspring will have zig-zag antennae ⇒ Depends on it´s genotype

Answer:

A-b -d d-c c-d

Explanation:

Answer:

Label A

Ocean Trench

Label B

Ridge

Label C

Ridge Push

Labe D

Convection Current

Edg 21

Answer: C. Animal butchery for the first time

Explanation: The discoveries in the cave suggest that humans were harvesting food from the sea (including shellfish and other marine resourses), the use of complex small stone tools and using red pigments in symbolic behavior 164,000 years ago.

A paleoanthropologist (with the Institute of Human Origins at Arizona State University); Curtis Marean, who was the Lead of the research team expressed the aforementioned discoveries while presenting their reports on the research.

He further indicate that these discoveries translates that humans must have been living along this coastal environment at that early time while exploiting it resourses.

Explanation:

Other detrimental effects include diseases such as typhoid and cholera, eutrophication and the destruction of ecosystems which negatively affects the food chain. Resource depletion is another negative impact of technology on the environment. It refers to the consumption of a resource faster than it can be replenished

Answer:

mRNA ⇒ 5'GMU  UAC  AUG  CGG  CUC  AGU  UGA  GGC  GAA  AAA  A 3'

tRNA ⇒                           UAC  GCC  GAG  UCA  ACU

protein ⇒ N - MET   ARG   LEU   SER   Stop - C

Explanation:

In protein synthesis, the ribosome reads mRNA in the 5´ to 3´ direction, and, according to the codons that are being readen, tRNA transfers the correct amino acids to build the polypeptide chain. A codon is a short sequence of three nucleotides that store the genetic information for the aminoacids´ assembly. Each tRNA has two important sites. One of them that couples with the codon of the mRNA molecule, named anticodon. The other site couples with an amino acid. tRNA allows amino acids to align according to the nucleotidic sequence in the mRNA molecule.  

Once the new amino acid links to the growing peptidic chain, the binding between the amino acid and the tRNA molecule breaks. The tRNA is now free to join another amino acid and repeat the cycle.  

The protein is synthesized from the amino terminus to the carboxy terminus, while the added amino acids to the chain are coded by a codon formed by three bases in the mRNA. mARNs also have a start and end codon that are the signals of the synthesis initiation and finish. When the ribosome reaches the end codon, protein synthesis is over.    

Each of the codons represents one of the 20 amino acids used to build the protein. Each amino acid can be codified by more than one codon. From the total 64 codons, 61 codify amino acids, and one of them is a start codon. The left three codons are stopping translation points.

The codons indicating the initiation or stop points during the translation process are:

• The start codon AUG is the most common sequence used by eukaryotic cells and places near the 5´extreme of the molecule.  

• The end codons are UAA, UAG, UGA.

Protein synthesis initiates in the AUG start codon -Metionin-, and ends when reaching either of the stop codons UAA, UAG, UGA.

In the exposed example we have the following mRNA.

mRNA ⇒ 5'GMU  UAC  AUG  CGG  CUC  AGU  UGA  GGC  GAA  AAA  A 3'

Codons are separated by a space left between them. AUG is the start codon placed near the 5´ extreme. UGA is the end codon near the 3´ extreme. tRNA will add amino acids from the start codon, not before.

tRNA ⇒ UAC  GCC  GAG  UCA  ACU

Anticodons are separated by a space left between them.

protein ⇒ N - MET   ARG   LEU   SER   Stop - C

Each mRNA codon codifies for an amino acid. The start codon codifies for methionine. AUG = Met, CGG = Arg, CUC = Leu, AGU = Ser, UGA = Stop codon. The amino terminus is represented as an N and the carboxy terminus is a C. The first extreme to be translated carries the amino-terminal group, while the other extreme carries the carboxy-terminus group.

Answer:

0.43g/mL

Explanation:

Density of a substance is its mass per unit volume. It can be calculated thus:

Density = mass/volume

According to the information provided on propane in this question;

Mass of propane = 4,300g

Volume of propane = 10,000mL

Density = 4300/10000

Density = 0.43g/mL

Hence, the density of propane is 0.43g/mL.