Answer: Xylem fibers and xylem parenchyma are the elements of the xylem which is a vascular tissue in plants.
Explanation:
Xylem fibers are dead cells whereas the xylem parenchyma are living cells.
Xylem fibers are responsible for providing structural support to the entire structure of xylem whereas the xylem parenchyma is involved in conducting of water and minerals.
In xylem fibers the lignin is present whereas it is absent in xylem parenchyma.
A unique strain of grape variety is called what
Strain
Clone
Variety
Hybrid
Answer:
?
Explanation:
?
Two asteroids crashed. The crash caused both asteroids to change speed. Scientists want to use the change in speed and motion to figure out which asteroid has more mass. Based on the information in the diagram, which statement is correct? In your answer, explain what the forces were like and why the asteroids changed their motion.
Answer:
BASED ON THE INFORMATION IN THE DIAGRAM
Explanation:
wheres the diagram?
why do chromosomes form in mitosis
Answer:
The purpose of mitosis is to make more diploid cells. It works by copying each chromosome, and then separating the copies to different sides of the cell. That way, when the cell divides down the middle, each new cell gets its own copy of each chromosome.
Why did the movement of plants to land lead to adaptive radiation?
Answer: Adaptive radiation refers to the ability of living organisms to evolve rapidly from an ancestral forms into variety of other forms especially when the organisms move into a new environment that has abundant resources. The resources, which are present abundantly in the environment allow the living organisms to spread out in the environment and to find different habitats in the environments that favour their survival.In the question given above, adaptive radiation allows plants to fill different habitats (niches) that are found on land and to spread out rapidly.
Hope this helps :)
What is the answer of this question????
Answer:
buddingExplanation:
I hope it helps ❤❤❤How do we get the energy out of the food that we consume?
Explanation: This energy comes from the food we eat. Our bodies digest the food we eat by mixing it with fluids (acids and enzymes) in the stomach. When the stomach digests food, the carbohydrate (sugars and starches) in the food breaks down into another type of sugar, called glucose.
ANSWER:This energy comes from the food we eat. Our bodies digest the food we eat by mixing it with fluids (acids and enzymes) in the stomach. When the stomach digests food, the carbohydrate (sugars and starches) in the food breaks down into another type of sugar, called glucose
Explanation:
Which describes a way that carbon is pulled out of the atmosphere. when fossil fuels are used when trees use photosynthesis when I was burned when animals exhale
Answer:
Carbon is pulled out of the atmosphere when trees use photosynthesis
Your answer is B.
How do cell differentiation and cell division work together?
Answer:
After mitosis is over, each of the daughter cells continues its separate life.
Explanation:
One or both can be started or continued through differentiation, ie. processes that give different cells special structures and functions. A cell destined to become a nerve cell moves in one way of differentiation, and a cell destined to be a muscle cell moves in another.
A variation of this mechanism involves a special type of cell called a stem cell. The stem cell divides by mitosis, whereby one daughter cell remains the stem cell and continues to divide again and again, while the other difference in certain cell peaks is determined in the tissues.
PLEASE HURRY NEED ANSWER ASAP!!!!
DNA is a nucleic acid polymer composed of which repeating structural unit? nucleotides phosphate groups ribosomes proteins
Answer:Nucleotides
Explanation:
I know about this stuff :)
Answer:nucleotides
Explanation:
What types of cells do fibroblasts make?
literally need right now!
how might osmosis apply to your feast
- boiling noodles
- baking the tools
- brining the turkey in salt water befor you cook it, or the Kimchi relish
- chicken broth soaking into the stuffing
Answer:
boiling noodles
Explanation:
so osmosis is the movement of water moleules, and when they disperse into the air. when boiling water, the water turns into mist and dissolves into the air
Describe the ways by which substances can cross the phospholipid bilayer
Explanation:
Simple Diffusion across the Cell (Plasma) Membrane The structure of the lipid bilayer allows only small, non-polar substances such as oxygen and carbon dioxide to pass through the cell membrane, down their concentration gradient, by simple diffusion.
A genetic mutation that causes abnormal cells to rapidly reproduce and divide often leads to
Answer:
Cancer
Explanation:
It might be said that a genetic mutation that causes abnormal cells that reproduce and divide rapidly, might lead to a cancer. this is associated with an uncontrolled cell growth in a multicellular organism.
(This is an comfirmation for the answer above )
Use the diagram below to answer the following questions for 1 point each- explain the role of DNA in protein synthesis
Answer:
Regarding protein synthesis:
The role of DNA in protein synthesis is to contain the genetic information necessary for a specific protein to be manufactured, by transcribing it into mRNA.The role of mRNA in protein synthesis is to conduct the sequence of nitrogenous bases, organized in triplets or codons, to the ribosome for translation and initiation of synthesis.The processes of transcription and translation occur in the cell nucleus and cytoplasm, respectively.Explanation:
DNA is a molecule that contains the genetic information of an individual in a specific sequence of nitrogenous bases that are part of its structure. The process of transcription occurs in the cell nucleus and consists of the synthesis of a single-stranded mRNA molecule from one of the DNA strands.
The role of DNA in protein synthesis in the transcription of genetic information into mRNA.
Molecule of mRNA is that carries the sequence of nitrogenous bases that make up the genetic code, i.e., sequences of triplets or codons that encode the start of protein synthesis, the amount, type and order of amino acids of a protein, and the stop of synthesis.
The translation process —which occurs in the cytoplasm— is performed when the ribosomes read the genetic code and begins the union of amino acids into polypeptide chains. The role of mRNA in protein synthesis is then to drive the genetic code into the ribosome for translation.
In one to three sentences, describe what happens during the carbon fixation stage of the Calvin cycle.
Answer: In fixation, the first stage of the Calvin cycle, light-independent reactions are initiated; CO2 is fixed from an inorganic to an organic molecule. In the second stage, ATP and NADPH are used to reduce 3-PGA into G3P; then ATP and NADPH are converted to ADP and NADP +, respectively.
The source of power in a nucler power plant comes from
Answer:
the splitting of uranium atoms
Explanation:
During fission, two new, lighter nuclei are formed and fission energy is released, which is up to 20 times higher than the energy released in alpha, beta, and gamma decay (compared to chemical reactions, fission energy is a million times higher).
By breaking the nucleus of the atom, a huge amount of heat is released.
How many “official” constellations are there?
Answer:
"88" seems to be the appropriate response.
Explanation:
There would have been 88 internationally approved constellations throughout all, who together encompass or represent the whole atmosphere or universe. And therefore any particular statement throughout the planets and stars reference frame may be the integrative model to the constellation or series.
Which system is responsible for the sense of taste?
qustatory
O olfactory
visual
O auditory
civity
void(O)
Answer:
a. gustatory
Explanation:
why do vertebrates come from under chordates ?
Answer:
As chordates, vertebrates have the same common features: a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post tail. Vertebrates are further differentiated from chordates by their vertebral column, which forms when their notochord develops into the column of bony vertebrae separated by discs.
Blood vessels are muscular tubes that carry blood, sugar, and oxygen to the parts of the body. Nervous impulses cause these tubes to expand or contract. Which system do the vessels belong to?
Group of answer choices
circulatory
nervous
digestive
muscular
Answer:
blood vessel belongs to circulatory system
what are the scientist doing incorrectly? what could they do to make their work in the lab safer? why is it important to follow these procedures? part F
Answer:
What scientists are doing incorrectly is sharing the work table, having test tubes with chemicals and food on the same table.
Explanation:
The image shows two scientists sharing the same work table, where there are also chemicals in test tubes and food, resulting in an incorrect practice.
what could they do to make their work in the lab safer?In this case, to maintain the biosafety procedures in a laboratory, it is necessary to:
Work at separate tables, especially if they are doing different activities. Test tubes and chemicals should occupy specific work tables. Food and beverages should be kept outside the laboratory, in environments intended for rest and feeding. why is it important to follow these procedures?Biosafety in a laboratory is essential for efficient work and to avoid unnecessary accidents.
It is important to follow these procedures so that the work is fluid, to avoid unnecessary chemical spills, biocontamination and accidental poisoning in the laboratory area.
Explain why HETEROTROPHS don't need to do photosynthesis but DO need to go through cellular respiration.
Answer:
Explanation:
Because most autotrophs transform sunlight to make food, we call the process they use photosynthesis. ... Heterotrophs cannot make their own food, so they must eat or absorb it. For this reason, heterotrophs are also known as consumers.
explain the law of law superposition
Answer:
Pyrolysis entails heating organic materials to 800–900oF (400–500 oC) in the near complete absence of free oxygen. Biomass pyrolysis produces fuels such as charcoal, bio-oil, renewable diesel, methane, and hydrogen
Explanation:
Which statement differentiates sensory neurons and motor neurons?
Options related to this question:
sensory neurons are found in the brain; motor neurons are found in the spinal column.
sensory neurons carry stimuli information to the brain; motor neurons carry processed information to muscles and glands.
sensory neurons process the information from the sensory organs; motor neurons process the information from the motor parts of the body, such as muscles.
sensory neurons involve involuntary actions; motor neurons involve voluntary actions.
Answer:
The correct answer would be - Sensory neurons carry stimuli information to the brain; motor neurons carry processed information to muscles and glands.
Explanation:
There are two basic types of neurons that help in performing action according to the external condition; the sensory neurons and the motor neurons. Neurons perform the action of sending or transmitting the information in the form of nerve impulses
The signals carried from the external environment through peripheral parts of the body to the CNS for processing the signals and motor neurons transmit the signals from CNS to the various peripheral body parts.
Answer:
1. Which structure would be unaffected by the peripheral nervous system?
meninges
sense organs
muscles
glands
2. The sympathetic and parasympathetic nervous systems are both a part of which division of the nervous system?
central nervous system
voluntary motor system
somatic nervous system ( its not this one)
autonomic nervous system
3. Which statement best exemplifies the scientific principle that was involved in this case?
New experiments do not affect science because science remains constant.
New experiments can affect future scientific explanations.
New experiments can affect previous scientific explanations.
New experiments yield untrustworthy data and should be carefully considered.
4. Which is an example of how the peripheral nervous system helps the body maintain homeostasis?
Muscles produce keratin so that hair can grow stronger.
Sweat glands break down the food that is consumed.
Muscles contract rapidly to produce heat on a cold day.
The brain recalls information to help take a test.
5. What is the role of sensory neurons in the breakdown of food?
Sensory neurons digest carbohydrates in the digestive tract.
Sensory neurons cause chewing of food in the mouth.
Sensory neurons release hormones so that the brain can cause the food to be moved and digested in the digestive tract.
Sensory neurons sense the presence of food and relay the information to the brain so that food can be moved and digested in the digestive tract.
6. Which statement explains the difference between a nerve that is connected to the skin and a nerve that is connected to a muscle?
1.The nerve that is connected to skin is a motor neuron; the nerve that is connected to a muscle is a sensory neuron.
2.The nerve that is connected to skin receives stimuli information from the external environment; the nerve that is connected to a muscle receives processed stimuli information from the brain.
3.The nerve that is connected to skin is part of the central nervous system; the nerve that is connected to a muscle is part of the peripheral nervous system.
4.The nerve that is connected to skin helps the body maintain homeostasis; the nerve that is connected to a muscle supports the body so it can stand upright and move from place to place.
7. How would an injury that incapacitated the central nervous system affect the peripheral nervous system?
The peripheral nervous system would be prevented from sending information from stimuli receivers.
The peripheral nervous system would not be able to process the information that it received from the stimuli receivers.
The peripheral nervous system would block information from the central nervous system.
The peripheral nervous system would have no information to send to the muscles and glands.
8. How does a motor neuron work when a mosquito is seen on an arm?
It receives stimuli information from the skin and sends it to the brain where it is processed.
It receives processed information from the brain, causing the muscles of the arm and hands to remove the mosquito from the arm.
It processes information from the stimuli receiver and makes the brain aware that there is a mosquito on the arm.
It makes the arm numb from the effect of the mosquito bite.
9. Which best describes the parasympathetic nervous system?
the brain and spinal cord
rest and digest
fight or flight
the sensory and motor neurons
10. Which statement differentiates sensory neurons and motor neurons?
Sensory neurons are found in the brain; motor neurons are found in the spinal column.
Sensory neurons carry stimuli information to the brain; motor neurons carry processed information to muscles and glands.
Sensory neurons process the information from the sensory organs; motor neurons process the information from the motor parts of the body, such as muscles.
Sensory neurons produce involuntary responses; motor neurons produce voluntary responses.
Explanation:
The human body has various organ-systems that coordinate their functions to maintain the health of the body. In the illustration below, the larger cell on the right represents a white blood cell and the cells on the left are bacteria. Uploaded Image Justify how the figure illustrates coordination of the immune and nervous systems. Group of answer choices D. The nervous system has responded to the existence of an infection caused by bacteria, and has alerted the immune system to increase the production of white blood cells C. The immune system has responded to the existence of infection caused by the bacteria, and alerted the nervous system to increase the production of white blood cells. B. The immune system has responded to the presence of the bacteria cells and has alerted the nervous system to reduce the presence of white blood cells. A. The nervous system has responded to the existence of an infection and has alerted the immune system to produce more bacteria cells.
Answer:
A
Explanation:
Cause nervous system make your brain white when your nevers
Write down the function of motor nerve.
Answer: Motor nerves are those nerves those that carry the messages in the form of a response from the brain or the spinal cord to other parts of the body such as the muscles and glands. They are responsible for carrying the information from the CNS to the PNS.
Explanation:
Please help with this
Answer:
no i dont think so
Explanation:
crooked teeth and being overweight is not genetically passed on. I think it is lifestyle choices
Answer:
No.
Explanation:
The characteristics of a person picked up through life (such as plastic surgery or scars) are not genetic, and therefore cannot be passed from parent to offspring.
How has dna technology led to advancements in forensics medicine and agriculture?
Answer:
DNA technology is very beneficial in the criminal and civil justice system, methods such as fingerprinting are used very often when trying to find a person behind a crime. This technology has also improved our use of medicine. One way is breeding plants to create more options of curing diseases by using adding nutrients and minerals. Lastly, DNA is used to grow crops that have a lot more nutrients and minerals that are added from other plants.
Explanation:
Characterization, or ''typing," of deoxyribonucleic acid (DNA) for purposes of criminal investigation can be thought of as an extension of the forensic typing of blood that has been common for more than 50 years; it is actually an extension from the typing of proteins that are coded for by DNA to the typing of DNA itself. Genetically determined variation in proteins is the basis of blood groups, tissue types, and serum protein types. Developments in molecular genetics have made it possible to study the person-to-person differences in parts of DNA that are not involved in coding for proteins, and it is primarily these differences that are used in forensic applications of DNA typing to personal identification. DNA typing can be a powerful adjunct to forensic science. The method was first used in casework in 1985 in the United Kingdom and first used in the United States by commercial laboratories in late 1986 and by the Federal Bureau of Investigation (FBI) in 1988.
DNA typing has great potential benefits for criminal and civil justice; however, because of the possibilities for its misuse or abuse, important questions have been raised about reliability, validity, and confidentiality. By the summer of 1989, the scientific, legal, and forensic communities were calling for an examination of the issues by the National Research Council of the National Academy of Sciences. As a response, the Committee on DNA Technology in Forensic Science was formed; its first meeting was held in January 1990. The committee was to address the general applicability and appropriateness of the use of DNA technology in forensic science, the need to develop standards for data collection and analysis, aspects of the
technology, management of DNA typing data, and legal, societal, and ethical issues surrounding DNA typing. The techniques of DNA typing are fruits of the revolution in molecular biology that is yielding an explosion of information about human genetics. The highly personal and sensitive information that can be generated by DNA typing requires strict confidentiality and careful attention to the security of data.
Jasmine is a healthy girl who is playing outside. Her internal body temperature rises to 38 degrees Celsius, which is above normal. How does her body most likely respond to help her return to homeostasis?
Answer:
See the answer below
Explanation:
Jasmine's body would help her return to homeostasis by using the negative feedback loop.
The negative feedback loop works to negate the process or processes that lead to the body's setpoint being breached. The setpoint refers to the normal range of operation of body processes such as temperature, pressure, etc.
The skin of Jasmine acts as a sensor and sends information to the control center, the brain. The brain reads the temperature data, finds out that the setpoint has been exceeded, and sends information to the effectors to initiate processes that will return Jasmine's body temperature to normal.
One of the effectors, the blood vessels that supply blood to the skin becomes dilated. Consequently, more blood is supplied to the skin and more heat is lost from the skin due to radiation - blood being a conductor of heat in the body. Another effector, the sweat glands, release sweat to the skin. The evaporation of sweat from the surface of the skin causes the body to cool down. These processes work synergistically to return the body temperature of Jasmine back to homeostasis.
Answer:
By Sweating
Explanation:
What biological process causes new strains of pathogen to develop