Question 1 of 26
Which pair of lists correctly labels Earth's mechanical and compositional
layers and puts them in the right order, with the uppermost layers listed first?
A. Compositional: crust, mantle, core
Mechanical: mesosphere, asthenosphere, lithosphere
B. Compositional: crust, mantle, core
Mechanical: lithosphere, asthenosphere, mesosphere
C. Compositional: asthenosphere, lithosphere, mesosphere
Mechanical: crust, mantle, core
D. Compositional: lithosphere, asthenosphere, mesosphere
Mechanical: crust, mantle, core
SUBMIT

Answer:

After a fire

Explanation:

Primary succession is one of the two types of ecological succession in which a barren area of land (with no soil) is colonized by organisms called PIONEER SPECIES for the very first time.

Primary succession is characterized by a BARREN area that had no form of previous growth or colonization. These barren area can include a retreating glacier, an emerging islands or the formation of new lakes.

Note that, the succession that occurs AFTER A FIRE or any form of environmental disturbance is SECONDARY SUCCESSION.

Answer:

b. are energy-yielding (under standard state conditions).

d. yield ATP.

Explanation:

The reactions of glycolysis produces the ATP molecules from the breakdown of glucose molecule. Glycolysis produces 2 molecules of ATP, 2 molecules of NADH, and 2 molecules of pyruvate: Glycolysis breakdown glucose with the help of oxygen produces energy in the form of ATP, NADH, and pyruvate so e can conclude that glycolysis are energy-yielding process for the cell.

Answer:

C. Genetic differences between individuals and hormone levels

Explanation:

Examples of biological factors that influence individuals include the likes brain, immune system, nervous system, and genetics.

Also, the physiology of humans is affected by the biological factors the systemic reaction of the body system such as hormones.

Hence, in this case, Examples of biological influences on physiology are the "Genetic differences between individuals and hormone levels."

Answer:

The question is incomplete, the complete question is as follow:

Thymine in DNA occurs as the result of thymidylate synthase creating _______, which then undergoes _______ to _______, then to _______, and incorporated into D N A by _______. Thymine in tRNA arises ________, by an S-adenosylmethionine-dependent _______ of a ______ residue in RNA.

Answer:

Thymine in DNA occurs as the result of thymidylate synthase creating dTMP, which then undergoes phosphorylation to dTDP, then to dTTP, and incorporated into DNA by DNA polymerase. Thymine in tRNA arises posttranslationally, by an S-adenosylmethionine-dependent methylation of a UMP residue in RNA.

Explanation:

Thymidylate synthase is a key enzyme that catalyzes the synthesis of 2′-deoxythymidine-5′-monophosphate (dTMP) from 2′-deoxyuridine-5′-monophosphate (dUMP). This enzyme catalyzes the addition of a phosphate group (phosphorylation) of dTMP in order to form thymidine 5'-diphosphate (dTDP). Once synthesized, dTMP can be metabolized to deoxythymidine triphosphate (dTTP), which is a precursor for DNA biosynthesis. On the other hand, transfer ribonucleic acid (tRNA) is methylated after the molecule is synthesized. The transfer of the methyl group is catalyzed by an S-adenosylmethionine–dependent methyltransferase that catalyzes the methylation of uridine monophosphate (UMP) using SAM (S-adenosylmethionine) as the methyl donor.

Answer:

hair color is determined by genetics

Explanation:

DNA is replicated in a semi-conservative manner (option C). Details about DNA replication can be found below.

DNA replication is the process by which a new strand of DNA is synthesized prior to the process of cellular division.

DNA replication occurs in the S-phase of the interphase stage, before the nucleus of the cell divides.

DNA is replicated in a semi-conservative manner in such a way that one strand serves as a template for the other.

Learn more about DNA replication at: https://brainly.com/question/16464230

#SPJ1

Answer:

5+x/8=42

Explanation:

This is your answer to the equation.

If you want to solve it, then subtract 5 from both sides to get x/8=37. Then multiply both sides by 8 to get x=296

Hope this helps!! :)

Answer: All of the choices are correct.

Explanation:

Meiosis is a type of cell division of the nucleus that occurs in cells that will give rise to gametes (egg or sperm). These are haploid cells (n), that is, they possess only one chromosome of each of the pairs (23 in total). Through meiosis from a diploid cell (2n), four haploid cells are obtained, thanks to two successive divisions called meiosis I and meiosis II.  Both comprise prophase, metaphase,  anaphase and telophase.

Homologous chromosomes are a pair composed of a paternal and a maternal chromosome. They have the same DNA sequence arrangement from one end to the other, but different alleles. These chromosome copies have the same genes at the same loci where they contribute tips along each chromosome that facilitate a pair of chromosomes to align correctly with each other before they separate during meiosis. Sister chromatids are those that make up a chromosome after duplication of the genetic material.  

The homologous chromosomes of maternal and paternal origin, mate and this process is called "synapsis" and form what is known as a tetrad or bivalent chromosome, giving the impression that it is a chromosome with four chromatids. In these tetrads, junctions called chiasmata are formed, areas in which both homologues exchange genetic material or genes, a process known as crossing-over. The chiasmata allow the chromosomes to be held together until their separation in anaphase l. So, genetic recombination is the process by which a segment of genetic material from a maternal chromosome is cut and then joined to a paternal chromosome (or vice versa) during prophase I of meiosis. So it happens between non-sister chromatids of a paternal and a maternal chromosome.

After crossing over, the homologous chromosomes are arranged randomly at the cell's  the equator of the cell at random (methaphase), facing each other, still united in the areas where crossing over occurred. Each chromosome is associated with a meiotic spindle fiber of the meiotic spindle and they are pulled along the meiotic spindle and driven toward the respective poles (anaphase). The chromosomes are now arranged at the poles and the reorganization of the nuclear envelope and the nucleolus begins. Finally, cytokinesis occurs and the rearrangement of cellular components and reorganization of the cytoskeleton. As a result of meiosis I,  2 haploid cells are obtained and then meiosis II occurs, where the sister chromatids are separated, generating two more cells (a total of 4).

Genetic variability is generated because the gametes produced during meiosis will not inherit the same chromosomes as the mother cell, but due to crossing over, the inherited chromosomes will be genetically different.

Answer:

The alveoli are the sites of gas exchange; they are located at the terminal regions of the lung and are attached to the respiratory bronchioles. The acinus is the structure in the lung where gas exchange occurs. The sac-like structure of the alveoli increases their surface area.

Answer:

The double helix can be found almost everywhere in DNA. AGTC is found in lions, humans, and fish. The double helix is the most stable structure for maintaining genomic integrity in AGTC. The gene structures (that is, sequence) differ, as do promoters and other elements, but the DNA structure remains the same.

Answer: It's most likely Gamma Rays.

Explanation:

Answer:

Produce sperms.

Explanation:

This occurs in three stages; proliferation and spermatogia differentiation, meiosis, spermeogenesis.

Answer:

._.xd

Explanation:

xd

Answer:

Answer:

Motor Neurons

Answer:

The neurons that carry messages to the muscles are called motor neurons.

Answer:

option A they have developed from the same organism

Explanation:

Organs of animals (belonging to different species) which have similar structure but different functions are homologous organs. Such organs have evolved from the same ancestors , however their function are different.  

For example – wings of bats, limb of human etc.  

Here in this case  also the bone structures of human, cow, and horse are same but their functions are different, thus they are homologous organs and hence they have evolved from same ancestors.  

The correct answer is option A

Answer:

"They have developed from the same organism."

Answer:

Major functions of connective tissue include: 1) binding and supporting, 2) protecting, 3) insulating, 4) storing reserve fuel, and 5) transporting substances within the body .Blood integrates organs and organ systems by transporting and exchanging fluid with various organs and organ system to allow them to function and work properly allowing the organism to survive

The structure that allows lycophytes to grow bigger than mosses and liverworts is xylem and phloem which is option B

Lycophytes are spore bearing vascular plants. Being a vascular plant, they possess vessels ( vascular tissues) which include:

The possession of the vessels makes the lycophytes appear bigger.

Mosses and liverworts belongs to the plant phylum Bryophyta. They do not have any vascular tissues that can be used to conduct water and food. This restricts their size.

Therefore, the structure that allows lycophytes to grow bigger than mosses and liverworts is xylem and phloem

Learn more about xylem and phloem here:

https://brainly.com/question/2002070

Answer:

xylem and phloem

Explanation:

Lycophytes have specialized tissue that transports nutrients and provides structural support.

Answer:

ℴℴℴ

Explanation:

ℯℯ ℴ ℯ ℊ

Answer:

False

Explanation:

The climbers doesn't often bear big fruits. It gives small fruits and berries like Grapes, Kiwi, etc. Hence, your statement is incorrect (false).

Answer:

an entrepreneur or innovater

Answer:

yo creon q sobrino lejan

o

Answer:

to prevent bacteria and viruses

Answer:

Recombination and independent assortment.

Explanation:

Recombination and independent assortment in meiosis are the two ways of meiosis that results in genetically unique daughter cells. Recombination is also called crossing over that is the exchange of genetic material that occurs in the germ line. During crossing over, part of one daughter chromosome is exchanged with another that causes diversity whereas independent assortment refers to the allele a gamete receives for one gene does not influence the allele received for another gene.

A solution that has a pH of 6.8

it is acidic as it has got ph value less than 7....But as it has got ph value near to 7 it is weak acidic..

Answer: True.

Explanation:

A population is defined as the set of individuals that inhabit a given geographic area. A population has a certain allele frequency, which is the measure of the relative proportion of alleles in a given population, expressed as a percentage or unit. It is estimate using the number of times the allele is found in a locus and dividing it by the total number of alleles. While the genotypic frequency refers to the number of times that each of the genotypes generated by the two-by-two combinations of the alleles involved in the locus under study appears in relation to the total number of genotypes (which will be equal to the total number of individuals included in the study).

The population can be increased or decreased according to the birth and death rates. Generally, unless specific alterations occur, such as the spread of a disease, immigration, emigration, natural disasters, and others, the size of the population will remain constant. This means that the birth rate is quite similar to the death rate. And the larger the population, the more difficult it is to disturb this balance between births and deaths. So if small fluctuations in survival or reproduction occur between individuals, it is unlikely that this will affect the frequency of alleles and/or genotypes.   This is explained using the Hardy-Weinberg principle states that the genetic composition of a population remains in equilibrium as long as no mutation occurs, and nor natural selection nor any other factor acts. After a generation of random mating, the frequencies of the genotypes of a locus are fixed at an equilibrium value. Then, the genetic variation in a population will remain constant from one generation to the next in the absence of extreme disturbing factors such as those mentioned above (diseases, natural disasters, and others).

Note that for this principle to be fulfilled, the population must be diploid (have two alleles of each gene), must reproduce sexually in a random manner, and must be large enough to minimize the effect of genetic drift (random fluctuations in allele frequencies from one generation to the next, due to random events that can cause certain traits to become dominant or disappear from a population).

Answer:

Abiotic simply means a non-living thing.

Therefore, my understanding of the characteristics of life are those things that show that something is living.

Things like:

Movement

Respiration

Nutrition

Irritability

Growth

Excretion

Reproduction

Death.