can someone plzz help me on this question its hard :( and i want to pass

The esophagus contains both smooth and skeletal muscle fibers.

The Esophagus -
A. Does not secrete digestive enzymes from its mucosa. The primary function of the esophagus is to transport food from the mouth to the stomach.

B. Is located posterior to the trachea, not anterior. The trachea is in front of the esophagus.

C. Is not lined with pseudostratified ciliated columnar epithelium. The esophagus is lined with stratified squamous epithelium to protect it from abrasion.

D. Contains both smooth and skeletal muscle fibers. The upper portion of the esophagus has skeletal muscle, while the lower portion has smooth muscle. This combination helps propel food through the esophagus and into the stomach.

Thus, option D. is correct.

Learn more about Esophagus here: https://brainly.com/question/25076666

#SPJ11

Answer:

Is this a scam to download this so you can be able to access my computer

Explanation:

Answer:

Blood pressure measurements

Explanation:

Dependent variables are the values that are measurable.

No, rainbow can't be formed If light travelled at the same speed in raindrops as it does in air .

If light traveled at the same speed in raindrops as it does in air, we would still have rainbows, but they would look slightly different. Rainbows are formed when light is refracted (bent) as it enters a raindrop, then reflected off the back of the drop,

And refracted again as it exits the drop. This causes the light to split into its different colors and creates the iconic arc of colors we see in a rainbow.

If light traveled at the same speed in raindrops as it does in air, the amount of refraction and reflection that occurs in the drop would be different. This means that the angle at which the light exits the drop would also be different, and the colors of the rainbow would be shifted slightly.

Instead of a distinct arc of colors, we might see a more diffuse band of colors that blends together. The colors may also appear less vibrant or be shifted to different positions within the band.

Overall, the presence of raindrops and the way that light interacts with them would still create a visual effect, but it would look different from the traditional rainbow we are used to seeing.

Know more about  rainbow   here

https://brainly.com/question/30099578

#SPJ11

Answer:

the answer is true.

Weber’s law defined that noticeable difference is a constant proportion. So the given statement is true.

In the case when there should be the size of the noticeable difference i.e. delta I should represent the constant proportion with respect to the original stimulus value.

Hence, we can say that Weber’s law defined that noticeable difference is a constant proportion. So the given statement is true.

Learn more about magnitude here: https://brainly.com/question/14576767

The correct order of the hormones control, from first-tier to third-tier hormone are: thyrotropin-releasing hormone (TRH), thyroid-stimulating hormone (TSH), production of T3 and T4.

The hormones thyrotropin-releasing hormone (TRH), thyroid-stimulating hormone (TSH), and the production of T3 and T4 are very important in the human body. The thyroid gland produces these hormones, which control the body's metabolic activities.

The hypothalamus produces thyrotropin-releasing hormone (TRH) which in turn, stimulates the anterior pituitary gland to produce thyroid-stimulating hormone (TSH). The TSH then controls the production of T3 and T4 hormones in the thyroid gland.

So, the correct order of the hormones control, from first-tier to third-tier hormone are thyrotropin-releasing hormone (TRH),thyroid-stimulating hormone (TSH),production of T3 and T4.

Learn more about hormones here:

brainly.com/question/30527782

#SMJ11

'Dissipation' and 'advection' are two terms in the turbulent kinetic energy equation that are representative of processes that occur in completely different wavenumber regions of the spectrum.

In the turbulent kinetic energy equation, dissipation refers to the viscous conversion of mechanical energy to heat. It is determined by viscous forces that affect the fluid leading to the diminution of eddies.

Advection refers to the transfer through horizontal movement of a mass or quantity of fluid, which may be liquid or gas.

Learn more about kinetic energy in:

https://brainly.com/question/999862

#SPJ4

The archegonium of both mosses and ferns contains egg/ovule cells. These cells play a crucial role in the sexual reproduction of these plants by receiving and fertilizing sperm cells, leading to the development of the sporophyte generation.

The archegonium is a structure present in the gametophyte generation of these plants and serves as the female reproductive organ. It consists of a venter, which is a flask-shaped structure that houses the egg cell, and a long neck that extends above the surface of the plant. The egg/ovule cells within the archegonium are essential for sexual reproduction in mosses and ferns. When a sperm cell from the male gametophyte reaches the archegonium, it fertilizes the egg cell, resulting in the formation of a zygote.

Learn more about archegonium: https://brainly.com/question/31536133

#SPJ11

Answer:

its (A)

Explanation:

The bowling ball would move farther than the soccer ball because it has more mass.

This is due to Newton's second law of motion, which states that force is equal to mass times acceleration (F=ma). If two objects are pushed with the same force, the object with greater mass will have less acceleration than the object with less mass.

Therefore, the soccer ball, which has less mass, will accelerate more than the bowling ball, but the bowling ball will travel farther due to its greater mass. This is also known as inertia, which is the tendency of an object to resist a change in its state of motion.

The greater the mass, the greater the inertia. So, in this scenario, the bowling ball would move farther than the soccer ball even though they were pushed with the same force.

To know more about Newton's second law, refer here:

https://brainly.com/question/13447525#

#SPJ11

they say which amino acids should put next to each other to make the desired protein

Riccia is a bryophyte.

Riccia is a genus of liverworts within the order Marchantiales. these vegetation are small and thalloid, that isn't always differentiated into root, stem and leaf.

Riccia is a bryophyte. Bryophytes have sporophytes which increase on the gametophyte.it's far formed after syngamy and is dependent on the gametophyte for vitamins. A based sporophyte is a function characteristic of bryophytes

The genus Riccia (liverworts) are small thalloid flora that aren't differentiated into roots, stems and leaves. they're dichotomously branched and shape rosettes. they're typically monoecious and their sexual organs are antheridia and archegonia. Asexual replica is by the mode of spores.

Riccia, genus of liverworts (small, creeping flowers) in the order Marchantiales, widely distributed all through the world.

Riccia fluitans is the most effective really aquatic liverwort in Florida. plants were accrued from scattered locales inside the northern, central, and southern areas. not like most different liverworts, it floats freely in tangled clumps or mats below the water floor.

Learn more about bryophyte here:-

https://brainly.com/question/841138

#SPJ1

Provide Structure To The Rhizomes. Carry Oxygen To Plant Parts Provide Buoyancy To The Blade.

Answer:

Provide Struacture To The Rhizomas Carry Oxygen To Plant Parts Provide Buoyancy To The Blade

Answer:

Biodiversity will increase which will make the ecosystem more immune towards diseases and changes in weather.

Explanation:

Example: If u have 1 type of fish in a lake and suddenly the water became salty for some reason, that kind of fish may not survive and if it doesn't there will be no life left in the lake, but if there were multiple types of fish and other animals then some of them would be able to survive and adapt on the change in environment. Hope I helped!

In this case, the metabolic status of daughters can be classified as a quantitative variable because it is characterized by continuous and numerical values.

The metabolic status of daughters refers to the physiological state of a daughter cell in terms of its metabolic processes and energy utilization. In the field of biology, the classification of variables can help determine the type of data that is being analyzed and the appropriate statistical techniques that should be used.

The metabolic status of daughters can be classified as either a variable categorical or quantitative variable. A categorical variable is a variable that can take on one of a limited number of categories or values, and is often used to describe qualitative or categorical data. A quantitative variable, on the other hand, is a variable that can take on an infinite number of values, and is often used to describe quantitative data.

For example, the metabolic rate, which is a measure of the rate at which energy is used by cells, can be quantified and expressed as a numerical value. The metabolic rate of daughter cells can vary depending on various factors, such as the availability of nutrients, the presence of metabolic inhibitors, and the stage of cell division.

To know more about metabolic status refer to-

brainly.com/question/1576000#

#SPJ11

Answer:

So that in a guinea pig cross in the offspring the recessive trait —long hair— can be observed in 25%, the most probable genotype of the parents is heterozygous Ss.

Explanation:

In guinea pigs, for the characteristic hair length, short hair is the dominant allele and long hair is the recessive one.

In order for 25% of the offspring to express the recessive characteristic, the parents must have a recessive genotype, which can be seen in Punnett's Square:

P: Ss X Ss

Alleles     S     s

S             SS   Ss

s             Ss    ss

Where the offspring is:

According to this, heterozygous parents for the characteristic long hair in guinea pigs have a 25% chance of having offspring with long hair.

A zygote is a single-celled organism resulting from a fertilized egg.

An embryo on other hand is the early stage of development of a multicellular organism.

Organisms that reproduce se- xually, embryonic development is the part of the life cycle that begins just after fertilization and continues through the formation of body structures, such as tissues and organs.

An embryo is termed a fetus beginning in the 11th week of pregnancy, which is the 9th week of development after fertilization

Learn more about zygote and embryo:

https://brainly.com/question/1151355

A quadriceps muscle sample from Usain Bolt and compared it to one from a 25-year-old male long-distance runner, and it is seen that there are more fast-twitch fibers and red and white muscle fibers of larger cross-sectional area in Usain Bolt's leg muscles.

Athletes who run fast, such as sprinters, have more fast-twitch muscle, which is called "white muscle," as they need more energy for a short period of time, and as a result, the muscles anaerobically respire. The slow twitch muscle, called "red muscle," is more commonly seen in the long distance runner, such as in the marathon, and these runners need a continuous supply of energy for a long time, so aerobically the muscle respires.

Hence, a quadriceps muscle sample from Usain Bolt was compared to one from a 25-year-old male long-distance runner, and it was seen that there are more fast-twitch muscle fibers and red and white muscle fibers with a larger cross-sectional area in Usain Bolt's leg muscles.

Learn more about the fast-twitch and slow-twitch muscles here.

https://brainly.com/question/1232212

#SPJ6

The question is incomplete; the complete question is below.

usain bolt, a world champion sprinter, can run a 10-meter split in 0.82 seconds. say you obtain a quadriceps muscle sample from usain bolt and compare it to one from a 25-year-old male long-distance runner. what differences do you expect to observe between those two muscle samples? select all that apply.

more fast-twitch fibers in Usain Bolt's leg muscles

more mitochondria in Usain Bolt's leg muscles

red and white muscle fibers of larger cross-sectional area in Usain Bolt's leg muscles

A hydrogen atom and an electronegative atom can form a chemical connection that is rather weak. Between one water molecule's hydrogen atom and the oxygen atom of nearby water molecules, hydrogen bonds develop in water.

The complementary base pairs adenine (A) and thymine (T) and guanine (G) and cytosine (C) form hydrogen bonds in DNA. Two hydrogen bonds are created by each base pair. A carboxyl group, a polar, nonpolar, or charged R group, and an amino group make up the structure of an amino acid. The total polarity of the amino acid is determined by the polarity of the R group. Three characteristics of water include cohesion, adhesion, and high surface tension. The hydrogen bonds that exist between water molecules help to enable these characteristics.

To know more about hydrogen bonds, here

brainly.com/question/31139478

#SPJ4

Answer:

Disavantages if Carbon: Carbon can cause climate change by trapping heat, and they can contribute to respiratory disease from smog and air pollution.

The interaction of many different protein factors to stimulate or repress transcription forms a complex called combinatorial control.

Transcription is the process of imitating a sector of DNA into RNA. The sections of DNA written out into RNA fragments that can encrypt proteins are pronounced to produce mediator RNA. Other portions of DNA are reproduced into RNA particles named non-systematized RNAs. mRNA contains only 1–3% of total RNA samples.

Combinatorial deoxyribonucleic acid rule supplies a device by which almost limited numbers of copy determinants can control the verbalization of a much best number of genes accompanying beautifully brought into harmony worldly and relating to space patterns. Combinatorial control is important for transcription. It should clarify that an important machine of fundamental eukaryotic transcriptional management is combinational control.

To know more about Transcription refer to: https://brainly.com/question/25763301

#SPJ4

A mutation causes an increase in the production of the enzyme dna demethylase. this will most likely lead to methylation and decrease in overall gene expression.

A mutation in the gene that encodes the enzyme DNA demethylase can lead to an increase in the production of this enzyme. This in turn can lead to increased methylation of DNA, and ultimately to a change in gene expression. The precise effect of this mutation will depend on the specific gene involved and the extent of the increase in DNA demethylase activity.

In general, however, this mutation is likely to have a negative impact on gene expression and may lead to disease.The increased expression of genes may have beneficial or harmful effects, depending on the particular gene involved. For example, an increase in the expression of a gene involved in cell growth could lead to cancer.

A mutation that causes an increase in the production of the enzyme DNA demethylase will most likely lead to methylation and a decrease in overall gene expression. Methylation is a process by which a methyl group is added to a DNA molecule, usually by the addition of a methyl group to one of the DNA bases. This process can cause changes in the structure of the DNA molecule and can lead to gene silencing.

Learn more about Methylation at : https://brainly.com/question/13036206

#SPJ4

When two different species interbreed and produce hybrid offspring that are less fit or have reduced fertility, hybrid breakdown helps to maintain separate species even if fertilization occurs between them

Hybrid breakdown is a biological phenomenon that occurs .When two different species interbreed, their genetic material can mix and create new combinations of genes that may not be compatible with each other. In the first generation of hybrids, these genetic incompatibilities may not be immediately apparent, and the hybrids may be healthy and fertile. However, in subsequent generations, genetic incompatibilities may accumulate and lead to reduced fitness or sterility.Reduced fitness or sterility in hybrids is a result of genetic incompatibilities that cause problems during development, reproduction, or survival. For example, a hybrid may have difficulty in finding a mate of the same species, or its offspring may have reduced viability or fertility. As a result, hybrid offspring are less likely to successfully reproduce and pass on their genes to the next generation, thus preventing gene flow between the two species. The phenomenon of hybrid breakdown therefore serves as a mechanism that helps to maintain separate species by limiting the gene flow between them. Even if hybridization occurs, the resulting hybrids may have reduced fitness or sterility, which reduces their chances of producing viable offspring and contributing to the gene pool of either parental species. This helps to maintain genetic and reproductive isolation between species, allowing them to continue evolving separately and forming distinct genetic lineages.

For more such questions on fertilization

https://brainly.com/question/14886372

#SPJ11

Hybrid breakdown is a post-zygotic reproductive barrier that can occur when two different species interbreed and produce hybrid offspring. It involves the breakdown or weakening of hybrid offspring in subsequent generations, which ultimately leads to the separation of the two species.

In the first generation, the hybrid offspring may be healthy and viable, but in later generations, problems may arise. In hybrid breakdown, the hybrid offspring of the first generation are fertile, but their offspring (the second generation) are either infertile or exhibit reduced fitness. This can be due to the expression of recessive genes that were previously hidden in the parental species or the accumulation of mutations in the hybrid genome. As a result, the hybrid population cannot produce viable offspring and therefore cannot interbreed with either parental species. This ensures that the two species remain separate and maintain their distinct genetic identities. In summary, hybrid breakdown is a mechanism that can maintain the separation of two species even if fertilization occurs. It acts as a post-zygotic barrier to prevent the hybrid offspring from producing viable offspring, which ultimately prevents the two species from merging into a single gene pool.

To know more about species, click here https://brainly.com/question/13259455

#SPJ11

Answer: Verified by:  imsobored100013

Explanation: There's no explanation for this answer if need of help just reply to this answer.

Hope this helped you :)

There are four phases in the cell cycle. Thus, the four phases are the G1 phase, S phase, G2 phase, and M phase.

Chromosomes and other cell components duplicate to create two copies of themselves over the course of the cell cycle. Following this, the cell divides into two daughter cells, distributing one copy of the duplicated material to each.

G1, S, G2, and M are the four distinct stages of the cell cycle. DNA replication takes place during the S or synthesis phase, and the cell divides during the M or mitotic phase. The other two phases, G1 and G2, sometimes known as the "gap phases," are equally significant but less striking. Further M phase is divided into prophase, metaphase, anaphase, and telophase.

Thus, the G1 phase, S phase, G2 phase, and M phase are the four main phases in a cell cycle.

Learn more about the cell cycle, here:

https://brainly.com/question/29768998

#SPJ2

Answer:

1. 50cm

2. Direct

Explanation:

1. The distance pulled back means you get your answer from the distance pulled back data. Since 50cm is the largest of your given data, that makes the cart go farthest.

2. The farther you pull the band back, the farther the cart will go. Since both increase when you increase the distance you pull the band back, this is a direct relationship.

Taxonomy categorises organisms according to morphological and molecular characteristics and their evolutionary relationships. C) help us understand the differences and similarities among living things.

Taxonomy is the study of different organisms, their classification into categories according to their morphological and molecular characteristics and their evolutionary relationships, and assigning to each of them a binomial name.

The categories in where organisms are classified are:

• Domains

- archaea domain

- bacteria domain

- eukarya domain

• Kingdom

Includes different phyla closely related. This classification considers morphological traits.

- The bacteria domain includes the Eubacteria kingdom.

- The archaea domain includes the archaebacteria kingdom.

- The eukarya domain is divided into four kingdoms: Protist, Fungi, Plantae, and Animalia.    

• Phylum

• Class

• Order

• Family

• Genus

• Species

Dividing species into kingdoms help us understand the differences and similarities among living things.

You can learn more about kingdoms at

https://brainly.com/question/22972521

#SPJ1