Saliva mixes with food and changes starches into sugars is the beginning step of the digestion.
What are the functions of saliva?Saliva is the medium that bathes the taste receptors in the oral cavity and in which aroma and taste compounds are released when food is eaten.
It is composed of water, mucus, proteins, mineral salts, and amylase. As saliva circulates in the mouth cavity it picks up food debris, bacterial cells, and white blood cells.
Saliva moistens the mouth for comfort, lubricates as you chew and swallow, and neutralizes harmful acids. It also kills germs and prevents bad breath, defends against tooth decay and gum disease, protects enamel, and speeds up wound healing.
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Which of the following is a central idea of cell theory?
O Molecules are made out of two or more cells joined together.
O Cells join together when they reproduce.
O Cells come from preexisting cells.
O Atoms are the basic unit of function in living things.
Answer:
[tex]cells \: come \: from \: pre \: exixting \: cell \\ thank \: you[/tex]
Forming a hypothesis is the first step of the scientific method.
Answer:
The first step in the Scientific Method is to make objective observations. These observations are based on specific events that have already happened and can be verified by others as true or false. Step 2. Form a hypothesis.
Explanation:
The hypothesis is an educated guess as to what will happen during your experiment. The hypothesis is often written using the words "IF" and "THEN." For example, "If I do not study, then I will fail the test." The "if' and "then" statements reflect your independent and dependent variables
Please helpppppppppp ASAP
100 extra points
Answer
answer with the help of this
Explanation:
A pure substance containing only one kind of blank hurry
Answer:
elements
Explanation:
the results of an experiment can be validated through replication true or false
Answer:
True through replication
Answer:
this is true
Explanation:
Question 7
All living things are made of cells.
Lion
True
False
Answer:---
True. Cell theory makes three major assertions: 1. All living things are made of cells. 2. Cells are the smallest unit of life. 3. Cells can only...
Please help me with this on the picture
where are genes located in a prokaryotes cell?
Questions 1 and 2 refer to the following statements:
I. Shortening of the chromosomes
II. Synthesis of DNA
III. Crossing over of non-sister chromatids
IV. Separation of sister chromatids
1. Which events occur during mitosis?
A) I and II only
B) I and III only
C) I and IV only
D) I, II, and IV only
2. Which events occur during meiosis I?
A) I and II only
B) I and III only
C) I and IV only
D) I, III, and IV only
A chromosome is a long DNA molecule with part or all of the genetic material of an organism. Most eukaryotic chromosomes include packaging proteins called histones which, aided by chaperone proteins, bind to and condense the DNA molecule to maintain its integrity. These chromosomes display a complex three-dimensional structure, which plays a significant role in transcriptional regulation.
Chromosomes are normally visible under a light microscope only during the metaphase of cell division (where all chromosomes are aligned in the center of the cell in their condensed form). Before this happens, each chromosome is duplicated (S phase), and both copies are joined by a centromere, resulting either in an X-shaped structure (pictured above), if the centromere is located equatorially, or a two-arm structure, if the centromere is located distally. The joined copies are now called sister chromatids. During metaphase, the X-shaped structure is called a metaphase chromosome, which is highly condensed and thus easiest to distinguish and study. In animal cells, chromosomes reach their highest compaction level in anaphase during chromosome segregation.
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25 puntos ayudame biologia gracias
Answer:
no puedo entender tu idioma
reaccionar unos con otros navegar por Internet y buscarlo
cual es el productor del que más consumidores primarios se alimentan
Answer:
please let us know what you mean in English
Answer:
Plantas o Algas son unos productos que consumen.
Explanation:
The new Hazard Communication Standards provide teachers and students the right to __________ chemical hazards.
The new Hazard Communication Standards provide teachers and students the right to manipulate chemical hazards.
Chemical hazards are non-biological substances that can cause damage to health. These are used in different enterprises, companies, school, universities and laboratories for different purposes such as cleaning, disinfection, scientific experiments, among others. When handling them, employees are exposed to them and are vulnerable to harm from these chemicals.
There are many types of hazardous chemicals to be wary of, such as:
Carcinogens NeurotoxinsAcids Systemic toxins Asmogens Silica dust LeadIn the workplace, exposure to these substances represents a real occupational hazard and there must be regulations to ensure that they are safe to handle.
The Occupational Safety and Health Administration (OSHA) is the agency of the U.S. Department of Labor which determined the Hazard Communication Standards. This is a document with the necessary information to study the hazards of the chemical substances used by different employees in the companies, so that they are aware of the dangers of these substances. These employees have the right to know exactly what compounds they handle and the risks involved in their use as well as the precautions and care to be taken.
Therefore, by having these safety standards in place in schools and universities, teachers and students have the possibility and the right to handle chemical hazards safely to be able to conduct the class normally and learn what is necessary.
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explain crop modifications in your own words.
draw a flow chart showing the spread of disease.
Answer:
hello
Explanation:
can you please tell me which disease
Based on the cell theory, which of the following is true?
O All cells are too small to be seen.
O All living things are made of cells.
OSmall organisms have more cells than large organisms.
Large organisms have larger cells than small organisms.
Answer:
all living things are made of cells
Answer:
all living things are made of cells
Explanation:
The first part of the cell theory states that all living things are made up of cells. Anything that’s alive, from bacteria to plants to humans, is composed of cells. And what are cells? The literal definition is a cell is a group of organelles surrounded by a thin membrane.
Los Parques Nacionales Naturales de Colombia se caracterizan porque:
1. Sus Ecosistemas no han sido alterados por la explotación y ocupación humana.
2. Son zonas delimitadas por criterios de Geografía Física: como relieve, clima, hidrografía, vegetación y suelos.
3. Allí nacen numerosos Ríos.
4. Satisfacen necesidades de la población.
Answer:
Explanation:
2. Son zonas delimitadas por criterios de Geografía Física: como relieve, clima, hidrografía, vegetación y suelos.
7. To test a new voice feature in a cockpit design a flight simulator was used. The simulator was programmed to
give visual readings of flight information, or to give visual and auditory (voice) readings of flight information. All
test pilots were put through a simulated emergency landing procedure, but were randomly assigned to the
visual, or visual and auditory conditions. Flight experts rated each pilot's performance in the simulator on a
scale of 1 (very poor) to 10 (excellent).
The variables in the simulation procedure carried out are :
Independent variable = Simulator Independent variable = Simulator Dependent variable = PerformanceThe dependent and independent variables are critical in any experimental study as both variables encompasses the variable to be measured and the variables manipulated in other to obtain the variable to be measured.
Independent variable : This is also called the predictor variable which is tweaked in other to obtain changes in the measured or dependent variable. In the experiment performed, the simulator is the independent variable has it has different visual or visual and auditory conditions capable of causing changes to the performance rating. The dependent variable is the variable being measured in an experiment. In this case, it is PERFORMANCE. It is the measured output obtained as the the pilot are being rated based on the simulation.Learn more : https://brainly.com/question/4497530
Vaccines contains
1 point
the antigen of a pathogen
the antibody of a pathogen
the DNA of a pathogen
the DNA of human cells
Answer:
the antigen of a pathogen
_____ are related to poor productivity of harvest due to poor care for soil.
Answer:
Soil Tillage, Climate Change and Soil Carbon Sequestration
Explanation:
9. The organs which are incompletely developed (rudimentary) and generally non-functional or without any use are called vestigial organs. Which of the following is a vestigial organ? a. Intestinal villi b. Papillae c. Vermiform appendix d. None of the above
Answer:
Vermiform appendix is answer maybe
Modern plant-breeding techniques (artificial selection in action) have reduced genetic variability in many of our most commercially valuable plants. To most people, that would generate a shrug. However, a biology student that has studied evolution understands the problem with this. Briefly explain why there is an issue with this.
Answer:
There is an issue with the artificial selection.
Explanation:
There is an issue with this artificial selection because the genetic variability is reduced when we do again and again the artificial selection. In the artificial selection, the selected genes are combined with the one another and does not allow natural fusion or combination of genes that is responsible for the genetic variability in the organisms so that's why we can say that this artificial selection is an issue that reduce genetic variability.
In meiosis, sister kinetochores are attached to the same pole of the cell during meiosis I, and sister chromatid cohesion is released during anaphase II. What would be the likely result if sister kinetochores were attached to different poles of the cell during meiosis I and sister chromatid cohesion was released during anaphase I
Answer:
sister chromatids would migrate to opposite poles in anaphase I
Explanation:
Kinetochores are multiprotein structures that establish the attachment of spindle microtubules to the chromatids during cell division (either mitosis or meiosis). Sister chromatid cohesion at the centromeres refers to the mechanism by which sister chromatids are paired and held together during meiosis I. This process (sister chromatid cohesion) is fundamental to ensure the correct orientation of chromatids on the spindle microtubules and their subsequent segregation in meiosis II. The fusion of sister kinetochores in meiosis I underlies sister chromatid cohesion during this stage of the cell division, thereby their disruption or destruction of sister chromatid cohesion would lead to separation and segregation of sister chromatids to opposite poles of the cell in anaphase I.
C What is the important of making prority
Answer:
Priorities will guide you in life's decisions and keep you on track. Most importantly, priorities will give you the confidence to say "no." They help you identify what's truly needed in your life, versus what someone else feels is important.
Answer:
The importance of it are Establishing priorities is necessary in order to complete everything that needs to be done. Prioritization is important because it with allow you to give your attention to tasks that are important and urgent so that you can later focus on lower priority tasks.
According to the theory of natural selection, why are some individuals more likely than others to survive and reproduce?
1Points
A
Some individuals pass on to their offspring new characteristics they have acquired during their lifetimes.
B
Some individuals are better adapted to exist in their environment than others are.
C
Some individuals do not pass on to their offspring new characteristics they have acquired during their lifetimes.
D
Some individuals tend to produce fewer offspring than others in the same environment.
The prevalence of CRE infections in health care settings has increased significantly in recent years, in part because these organisms are able to share plasmid-encoded resistance genes. Which method of horizontal gene transfer is most likely responsible for transfer of the plasmid between bacteria
Answer:
Bacterial conjugation
Explanation:
Carbapenem-resistant Enterobacterales (CRE) are different types of bacteria that lead to infections in healthcare settings. Moreover, a plasmid is a small piece of DNA that can replicate independently from the bacterial chromosome. Bacterial conjugation is a type of horizontal gene transfer by which plasmids are transferred from one bacterium referred to as 'donor' into another called 'recipient' by sex pili. Plasmid transfer is unidirectional and depends on physical contact between bacterial cells. In this case, it is expected that this type of DNA transport mechanism occurs among patients occupying the same rooms in healthcare settings.
This molecule releases energy wherever it is needed in the cell, like a battery.
A. Caffeine
B. Glucose
C. ADP
D. ATP
Answer:
D. ATP
hope it helps
Answer:
C
Explanation:
ATP stands for adenosine triphosphate. An ATP molecule has ahead of adenose sugar and a tail of three phosphate groups. Energy is stored in the bonds between phosphate groups, so when your body needs energy, it breaks off some phosphate and releases energy to the immediate environment.
Which Statement isna conclusion?
A. It's better to give people balloons than cut flowers that will die.?
B. Florist Put cut flowers in sugar water, so flowers in sugar water stay fresh longer?
C. How can cut flowers stay fresh for a longer period of time?
D. cut flowers placed in sugar water fresh longer than flowers placed in regular water.
Answer: C
Explanation:
which aspect of el nino can give scientists a preview of earth as temperatures rise with global warming?
Answer:
Its warming of sea surface temperatures
Answer:
its warming of sea surface temperatures
Explanation:
will mark Brainliest!!!!!! To corroborate information is to?
find evidence that opposes a scientific position.
find evidence that supports a scientific position.
find evidence that proves a scientific position.
find evidence that disproves a scientific position.
The most correct option as to what corroborating information means would be to find evidence that supports a scientific position.
Corroborate is an English word that means 'to agree with' or 'give credence to'.
Hence:
Finding evidence that opposes a scientific position is a wrong option because that is the complete opposite of what corroborate means. Finding evidence that approves a scientific position is also a wrong option because corroborating a statement does not necessarily make the statement to be scientifically correct.Finding evidence that disproves a scientific position is also incorrect. Corroborate neither translates to approve nor disprove,Therefore, the correct option that clearly explains what corroborate means in the context of science is to find evidence that supports a scientific position.
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say - Aquatic animals posses air sacs.in their bodyies . Give reasons.
Explanation:
1. provides more efficient supply level of oxgen.
