What is the function of the xylem? phloem?vascular cmabium? epidermis?

Answers

Answer 1
The Xylem transports water from roots to leaves. 
The Phloem transports organic nutrients usually from leaves to roots. 
The Vascular cambium divides to produce new xylem cells toward the inside of the vascular cambium and new phloem cells toward the outside. 
The Epidermis Covers the plant but is replaced by cork (periderm) in the stems and roots of woody plants.
Answer 2

The xylem transports water and provides structural support, the phloem transports sugars, the vascular cambium facilitates secondary growth, and the epidermis protects the plant and minimizes water loss.

Below are the primary functions of the xylem, phloem, vascular cambium, and epidermis:

Xylem: Transports and stores water and water-soluble nutrients from the roots to other parts of the plant. It also provides structural support due to the thick walls of its cells, such as tracheids and vessels.Phloem: Responsible for transporting sugars, proteins, and other organic molecules produced during photosynthesis from the leaves to other parts of the plant. It comprises specialized cells such as sieve tube elements and companion cells.Vascular Cambium: A layer of dividing cells located between the xylem and phloem. It is responsible for the secondary growth of xylem and phloem tissues, contributing to the thickness of stems and roots.Epidermis: The outermost layer of cells covering the plant body, including the leaves, stems, and roots. It serves as a protective barrier against physical damage, pathogens, and water loss, often supplemented with a waxy cuticle.

Related Questions

what does homozygous mean?

Answers

Alternative forms of a given gene are called alleles, and they can be dominant or recessive. When an individual has two of the same allele, whether dominant or recessive, they are homozygous. Heterozygous means having one each of two different alleles.
The same allele, for example (BB) or (bb)

Describe one common role of both bacteria and fungi in the movement of energy and matter in ecosystems. (b) describe how analyzing the data from the treatment group sprayed with water only will increase the validity of the experimental results.

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The common role is decomposition.

Decomposition is a process by which organic substances, like leaves or dead animals, are broken down into simpler matter. 
A lot of different types of organisms, called the decomposers, will consume the organic substances and continue an essential part of the nutrient cycle. These organisms can be both bacteria and fungi.

This is important for recycling the organic matter that occupies space in the biosphere and that way, continue the movement of energy and matter in ecosystems.

when you move your fingers to type a text message you are using motor neurons of the




Answers

central nervous system

In which kingdom are an overwhelming majority of its individuals producers? A) Animalia B) Fungi C) Insecta D) Plantae

Answers

The answer is D) Plantae 
Insecta isn't a kingdom and of whose individual producers?

What is one way in which the lymphatic system works together with the immune system?

Answers

The immune system produces B cells and T cells and these are stored in the lymph nodes, which is part of the lymphatic system

Answer:

Lymphatic system serves as site for production and maturation of lymphocytes.

Explanation:

Primary lymphoid organs of lymphatic system serves as site for production and maturation of lymphocytes which differentiate into B and T lymphocytes. Lymphatic system serves as first line of defense against infections since it transports antibodies, lymphocytes and pathogen along with lymph. Lymphocytes encounter the pathogens in secondary lymphoid tissues and proliferate to become actively involved cells. Spleen serves to filter the blood and presents the pathogens to lymphocytes and macrophages which in turn kill the pathogens.

Which group of living things can move energy from consumers at the top of an energy pyramid back to producers at the bottom? *

A. decomposers
B. producers
C. consumers
D. Nothing can move energy back to the bottom of an energy pyramid.

Answers

The answer to your answer is A. Decomposers.

A randomized experiment was performed to determine whether two fertilizers

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To test for the hypothesis is that there is a difference in the yield between fertilizer A and fertilizer B which is at 5 percent significance level.
From the MINIT AB output, the t-test statistics is -2.47
The p-value for the test is from the MINIT AB output the p-value of the test is 0.019
To conclude I can say that p-value in this context is less than 0.05 which is 0.019. Therefore the alternative or null hypothesis is rejected at five percent level of significance.
There is a sufficient evidence to indicate that there is a difference in the yield between fertilizer A and B. The result is statically significant.

In liver cells, the inner mitochondrial membranes are about five times the area of the outer mitochondrial membranes. what purpose must this serve?

Answers

The inner membrane is responsible for cellular respiration and thus, contains proteins involved in electron transport and ATP synthesis. This membrane envelops the mitochondrial matrix, where the electrons are produced (the citric acid cycle) and then travel from one protein complex to the next in the inner membrane (electron transport chain). The final electron acceptor is O2, and this ultimately forms H2O. At the same time, the electron transport chain produces ATP (oxidative phosphorylation via ATP synthase). ATP synthase uses concentration gradient of H+ (formed during electron transport), power synthesis of the energy molecule-ATP. Liver cells (hepatocytes) need a lot of ATP energy, for the processes like protein and other synthesis, protein storage, the transformation of carbohydrates…
Final answer:

The larger area of the inner mitochondrial membrane accommodates the proteins and enzymes necessary for the oxidative phosphorylation process used to generate ATP, a key energy molecule. The increased surface area due to the complex folds, known as cristae, allows for increased ATP production, supporting the liver cell's high metabolic activity.

Explanation:

The inner mitochondrial membranes in liver cells being about five times the area of the outer mitochondrial membranes serves a crucial function in energy production. The inner mitochondrial membranes house the proteins and enzymes necessary for oxidative phosphorylation, a process used by cells to generate ATP, which is a key energy molecule. The larger the area of the inner membrane, the more space there is for these proteins and enzymes to reside, hence the greater the capacity for ATP production.

Mitochondria, often described as the powerhouses of the cells, are the sites of cellular respiration, where biochemical processes of respiration and energy production occur. The complex folds of the inner mitochondrial membranes, known as cristae, increase the surface area, allowing for increased production of ATP. Therefore, this high ratio of inner to outer membrane area in the mitochondria of liver cells supports their high metabolic activity.

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Understand the hepatic portal system. be able to trace how the blood from the intestinal organs is taken to the liver, filtered and then back into the general circulation. (know the proper order using: sinusoids, hepatic portal veins, hepatic artery, hepatic veins, central veins, inferior vena cava) be able to place these in their correct order

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Understand the hepatic portal system. be able to trace how the blood from the intestinal organs is taken to the liver, filtered and then back into the general circulation. (know the proper order using: sinusoids, hepatic portal veins, hepatic artery, hepatic veins, central veins, inferior vena cava)

Which nutrients contribute most of the energy needed for physical activity -?

Answers

The answer would be carbohydrate

Carbohydrate, mainly glucose, is the substrate that was used as the main source of energy production. The second energy source would be fat as it gives much more energy than carbohydrate and protein. Protein is used for making new body cells and repairing the damaged one.

Alcohol __________.
a. is a known carcinogen
b. is technically not a carcinogen
c. is linked with significantly increased risk of lung and stomach cancer
d. does not increase the risk of esophageal cancer

Answers

the answer to your question is c, is linked significantly incread risk of lung and stomach cancer.

The most widespread pollutant that can cause long-term lung damage is:

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Pollution that is all around to the knowledge I’ve gathered my whole life

A scientist wants to study photosynthesis in a newly discovered species. Which of these cell strict should the scientist study ?

A-vacuoles
B-chloroplasts
C-mitochondria
D-ribosomes

Answers

I’m not sure, but I think the answer is A
The answer is B Chloroplasts

How do the skin proteins—keratin, melanin, elastin, and collagen—each contribute to our physical identity? how about the dermal papillae?

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Answer:

Skin is the largest organ of our body and it contains a lot of immune barriers that protects the pathogens form entering the skin. Majorly the nature of skin also helps in the external appearance of a person and also denotes age.

The skin protein such as keratin, melanin, elastin, and collagen are extracellular matrix proteins that plays a major role in maintaining the elasticity and texture of the skin. The dermal papillae is the region that  is present in the outer most layer of the skin that helps in the formation of hair follicles.

A puggle is a type of dog first produced by mating two other types of dog a pug and a beagle what is that process

Answers

The process of mating two different breeds of dogs to create a new breed is called crossbreeding or designer breeding. The characteristics of the resulting puppies can vary depending on the genetic traits inherited from each parent breed.

What is Crossbreeding?

Crossbreeding is the deliberate breeding of two different breeds of dogs to create offspring that possess desirable traits from both parent breeds.

The goal of crossbreeding is to produce a new breed that has the desirable traits of both parent breeds, such as appearance, temperament, or working ability.

In the case of a puggle, which is a mix of a pug and a beagle, the breeding process involves mating a purebred pug with a purebred beagle to produce a litter of hybrid puppies that inherit traits from both parent breeds.

It's important to note that while crossbreeding can be a way to create a unique and desirable breed, it is also controversial and has faced criticism from some animal welfare advocates.

Crossbreeding can lead to a variety of health problems, particularly when the parents have significant differences in size or structure.

Therefore, responsible breeding practices are important to ensure the health and well-being of the parent dogs and their offspring.

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The production of a puggle from mating a pug and a beagle is known as intentional breeding or artificial selection. Similar to how a cockapoo is bred from a poodle and a cocker spaniel, this process involves selecting parents with desirable traits. It is a human-driven practice that has led to a wide variety of dog breeds.

When a puggle is created by mating a pug and a beagle, it is an example of intentional breeding or artificial selection. This process involves choosing two different breeds with desirable traits to produce a new breed that exhibits a combination of these traits. Similarly, the breeding of a poodle and a cocker spaniel results in a breed known as the cockapoo.

This form of breeding occurs when humans intervene in the selection process, which has been practiced throughout history to create an array of domesticated animals with certain characteristics. While different dog breeds can interbreed to create hybrid dogs like the puggle and cockapoo, it's important to note that different species, such as the bald eagle and African fish eagle, may produce infertile hybrids due to incompatible genes that control development.

The creation of different dog breeds has largely been influenced by human activity, particularly through kennel clubs and dog shows which began in Victorian England. The American Kennel Club (AKC) continues to recognize new breeds, demonstrating the ongoing evolution and development of dog breeds under human influence.

Point (-5, 5) lies in Quadrant I II III IV

Answers

Point (-5,5) lies in Quadrant 2
Here's some notes:
Quadrant 1: (+,+)
Quadrant 2: (-,+)
Quadrant 3: (-,-)
Quadrant 4: (+,-)

In a graph, the quadrants are marked from the top right corner and goes anti-clockwise

Hence we will have (+,+) in the Quadrant I

(- , +) in quadrant II

(-,-) in quadrant III

and

(+,-) in quadrant IV

Now the given point (-5,5) is a (-,+) and hence it lies in the quadrant II

Calcium is the only supplement proven to provide relief from pms and pmdd symptoms.
a. True
b. False

Answers

I think not Sir/Miss.

What is parallel editing?
a. the cutting together of two or more shots of the same character as he or she moves across space.
b. the cutting together of two or more shots that signals a long passage of time.
c. the cutting together of two or more lines of action that occur simultaneously at different locations.
d. the cutting together of two or more shots that have nothing explicitly to do with one another.
e. the cutting together of two or more shots that link eye-lines?

Answers

Answer:

The correct option is C.

Explanation:

Parallel editing refers to the method of alternating two or more scenes that occur simultaneously at different locations in a video. This technique is also known as cross cutting. The method is one of the methods that video editors used to edit videos of cinemas and films. Parallel editing can also be used to add suspense and pacing to an unfolding film.  

This is a is a natural substance that cannot be re-made, re-grown, or regenerated as fast as it is used.

Answers

Fossil Fuels is a perfect example
Random guess, but oil/coal? It takes millions of years to form and people are using it up really quickly

Infants need fat because it aids in absorption of several vitamins and also helps the ______________ to develop.nervous systemkidneysskinreproductive system

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Answer: nervous system

Infants need fat as aid in absorption of several vitamins. IT also helps the brain or the nervous system to develop normally. Fats insulate all nervous system tissues in the body. Getting enough of this help infants feel full. It is also essential for growth and development. 

Describe how evolution changes the relative frequency of alleles in a gene pool. Why does this happen?

Answers

Allele frequencies in a population may change due to four fundamental forces of evolution: natural selection, genetic drift, mutations and gene flow. Mutations are the ultimate source of new alleles in a gene pool

An adolescent growth spurt occurs only in boys.
a. True
b. False

Answers

The answer is false
Both adolescence males and females have growth spurts

The correct answer is B. False

Explanation:

In development, a growth spurt refers to a period of time in which individuals experience rapid growth or development. In the case of an adolescent growth spurt, this is a natural process that occurs to all individuals including boys and girls during puberty. This takes place because during adolescence the hormone levels change and this leads to rapid growth as well as development or maturation of bones, muscle and the sexual or reproductive system. According to this, it is false an adolescent growth spurt occurs only in boys because this is a natural process that occurs on both girls and boys.

An_____ is an immunity-producing substance formed from weak, dead, or parts of viruses or bacteria

Answers

An antigen is something that can produce an immune response...can come from any of the above.
VACCINE is an immunity-producing substance formed from weak, dead, or parts of viruses or bacteria


Vaccine is the right answer! Goodluck

A student conducted an experiment to test the effect of the digestive enzyme pepsin on cooked egg white and potato in the presence of hydrochloric acid at a pH of 1. Which could be a probable inference? Pepsin digests egg white because it mainly contains protein. Pepsin digests potato because it mainly contains starch. Pepsin digests egg white because it mainly contains fat. NextReset

Answers

This would be the answer:

Pepsin digests egg white because it mainly contains protein.

Hope this helps.

If the sequence of a nontemplate strand of dna is 5'-accgcatccgagtcac-3' what is the sequence of the transcript?

Answers

The RNA polymerase reads this non-coding strand and builds the transcript in the 5’ to 3’ direction. So you need to go backwards with this strand!
So the transcript will be (remember RNA uses U not T!):
5’- gugacucggaugcggu-3’

Match each hormone with the description of what would happen if it was absent in a pubescent male. not all labels will be used.

Answers

GnRH - FSH and LH would not be secreted by the anterior pituitary.
Follicle-stimulating hormone (FSH) is a gonadotropin hormone secreted by the anterior pituitary which regulates development and pubertal maturation. Luteinizing hormone (LH) is also a hormone produced by cells of the anterior pituitary. In females, LH regulates ovulation, while in males it stimulates the production of testosterone. LH and FSH act together and regulate important processes of the reproductive system.
Gonadotropin-releasing hormone (GnRH) is secreted by the hypothalamus and is responsible for the release of the FSH and LH. Therefore, if GnRH was absent in a pubescent male, FSH and LH would not be released.

LH/FSH - Testosterone secretion would not occur.
As described above, LH and FSH work synergistically to control many factors of the reproductive system. LH is responsible for stimulating the production of testosterone by the Leydig cells, which are located in the testicles.
More specifically, when testosterone levels are low, GnRH is released by the hypothalamus which in turn triggers the secretion of LH and FSH by the anterior pituitary. The secretion of these two hormones triggers the production of testosterone by the testicles.
Therefore, if LH was absent, the secretion of testosterone would not occur. 

FSH - Spermatogenesis would not occur due to the absence of androgen-binding protein.
Spermatogenesis is the process of the development of mature male gametes (haploid spermatozoa) in the testis. FSH triggers the secretion of androgen-binding protein (ABP) by the Sertoli cells, which are specialized cells in the testicles. ABP is responsible for increasing the concentration of testosterone in levels high enough so that the spermatogenesis will occur.
Therefore, if FSH is absent, ABP will not be secreted and spermatogenesis will not occur.

Testosterone - A person would experience a loss of sex drive.
Testosterone is the primary male sex hormone which is involved in many processes of the reproductive system. Testosterone's most important role is the development of male reproductive tissues and secondary sexual characteristics. This steroid hormone is also responsible for health and well-being and the sense of sexual drive. If testosterone was absent in a pubescent male, then the person would have serious developmental issues and would also experience a loss of sex drive.

Inhibin - Spermatogenesis would occur in excess.
The Sertoli cells, which are located in the testis, secrete the polypeptide hormone inhibin, which acts on the pituitary control of the spermatogenesis. When the sperm count is too high, the inhibin is released into the blood and inhibits the production of GnRH and FSH. This inhibition will cause the spermatogenesis process to stop.
Therefore, if the inhibin is absent, the control of spermatogenesis will not happen and would occur in excess.

A student constructs a Venn diagram to compare the organelles in plant and animal cells. Venn Diagram of Plant and Animal Cells mc026-1.jpg Which organelle should be listed under “Both” in the diagram? centriole mitochondrion chloroplast cell wall

Answers

The correct answer is option (B) mitochondrion.

A Venn diagram represents an illustration of relationship between two groups, showing the characteristics of the groups separately in two circles and the similarities shown in the intersecting region of the two circles. When a Venn diagram is constructed to compare the organelles in plant and animal cells, the organelle that should be listed under "both" in the diagram is the mitochondrion.  Mitochondrion is a cell organelle that is the power house of the cell storing energy in the form of Adenosine triphosphate (ATP). It is present in both the plant and animal cells. It is made up of an outer membrane and an inner membrane with the inter membrane space, the cristae with the F1 particles and the mitochondrial matrix with proteins, enzymes, tRNA and the mitochondrial genome. Whereas centriole is present only in animal cell and chloroplast, cell wall are present only in plant cell.

Answer:

b

Explanation:

In opsonization, antigens that are coated with antibodies are susceptible to

Answers

Out of the following given choices;

A. Further antibody attack.

B. Phagocytosis

C. Helper T cells

D. B cells.

E. None of the above.

The answer is B. Phagocytises is the engulfment of a particle from the external environment, by a cell, for ingestion. This is especially critical for the function of macrophages, which are immune cells. These macrophages have receptors for the Fc region of the immunoglobulin on their cell membrane surface.

When you exhale, air passes through the respiratory structures in which order? A) alveolus, trachea, bronchus, bronchiole, larynx, pharynx, nasal cavity B) alveolus, bronchus, bronchiole, trachea, larynx, pharynx, nasal cavity C) alveolus, bronchiole, bronchus, trachea, larynx, pharynx, nasal cavity D) alveolus, trachea, bronchus, bronchiole, pharynx, larynx, nasal cavity

Answers

The correct answer is C) alveolus, bronchiole, bronchus, trachea, larynx, pharynx, nasal cavity.  

Exhale (breathe out) is the reverse process of inhaling (breathe in). Thus, the air goes through the bronchioles, out the bronchi, out the trachea, larynx, pharynx and finally out through your mouth and nose. Exhaled air contains wastes and carbon dioxide and it's warm.

Answer:

c

Explanation:

how's your day today

What is the whisker length of a sea lion with the two-locus genotype aabb?

Answers

Do you have a picture I can see?
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