Answers
Answer:
The first historical use of biomaterials dates to antiquity, when ancient Egyptians used sutures made from animal sinew. The modern field of biomaterials combines medicine, biology, physics, and chemistry, and more recent influences from tissue engineering and materials science.
Explanation:
For more info...visit
https://www.nibib.nih.gov/science-education/science-topics/biomaterials#:~:text=The%20first%20historical%20use%20of,tissue%20engineering%20and%20materials%20science.
Related Questions
hii! i’ll give brainliest pls help
Answers
Answer:
Landslide!
Explanation:
Since the house is build on a hill there is the possiblitie that the house will fall so it has to be landslide. The trees will help the house stay put.
I hope this helped!!
Communication between cells is affected if there is an issue with which
two systems
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Explanation:
As I think option B is the correct one.
Explain the basic process of transcription. Include a description of the major intracellular structures involved.
Answers
Answer:
Transcription is the cellular process of RNA synthesis by decoding the information contained in a DNA fragment
Explanation:
Transcription is the process by which the genetic information contained in a fragment of DNA called 'gene' is used as a template to synthesize an RNA molecule, usually, a messenger RNA (mRNA), which is subsequently used to synthesize a protein by the process of translation. In eukaryotic organisms, transcription involves a DNA template strand, which contains both non-coding (i.e., promoter, introns) and conding (i.e, exons) regions, and an RNA polymerase that adds nucleotides to the growing RNA strand using as a template a DNA strand. Both in prokaryotes and eukaryotes, transcription occurs in three basic steps: 1-initiation, where DNA strands separate, 2- elongation, where the RNA polymerase moves on the DNA sequence to synthesize an RNA molecule, and 3-termination, where transcription terminates depending on the sequence in the RNA (eukaryotic transcription has an additional step known as RNA processing).
how are petrified remians formed
Answers
Explanation:
Petrified fossils form when minerals replace the structure of an organism. This process, called permineralization, occurs when groundwater solutions saturate the remains of buried plants or animals. As the water evaporates the minerals remain, eventually filling in the spaces left as the organism slowly decays.
HELLPP I NEED THE ANSWER NOW!!!!!
Bloodworms, which are the mature larvae of non-biting midge flies, are commonly found in and around bodies of water. Most types of bloodworms can live only in pollution-free, oxygen-rich environments. However, a few species thrive in environments with low concentrations of oxygen and high concentrations of nutrients and pollutants. From the changes in the bloodworm populations shown in the table above, what can be determined about how water in the stream has changed?
A. The water has become less polluted, as evidenced by the decrease in the number of bloodworm species present and the increase in bloodworm population density.
B. The water has become more polluted, as evidenced by the decrease in the number of bloodworm species present and the increase in bloodworm population density.
C. The water in the stream has become less nutrient-rich, as evidenced by the increase in bloodworm population density.
D. The water in the stream has become more oxygenated, as evidenced by the increase in bloodworm population density.
Answers
Answer:
B
Explanation:
The water has become polluted,as evidenced by the decrease in the number of bloodworm species
how are mutations passed to offspring in sexually reproducing organism
Answers
Hope this helps!!
a. The logistic equation reflects the effect of density-dependent factors, which can ultimately stabilize populations around the carrying capacity. b. Density-independent factors have an increasingly greater effect as a population's density increases. c. High densities in a population may cause physiological changes that inhibit reproduction. d. Because of the overlapping nature of population-regulating factors, it is often difficult to precisely determine their cause-and-effect relationships. e. The occurrence of population cycles in some populations may be the result of crowding or lag times in the response to density-dependent factors.
Answers
Question:
Which of the following is an incorrect statement about the regulation of populations?
Answer:
b. Density-independent factors have an increasingly greater effect as a population's density increases.
Explanation:
A population can be defined as the total number of living organisms living together in a particular place and sharing certain characteristics in common.
Generally, these populations may be divided into a fraction of the population (subpopulation) based on certain factors and reasons.
Population change equation states that the change in the size of a population over a specific period of time is equal to the sum of the number of births and the number of immigrants that joined.
Mathematically, the population change equation is given by the formula;
Population Change = (Natality - Mortality) + (Immigration - Emigration)
Population regulation can be defined as a biological process that balances limiting factors affecting the growth of a population based on density. The factors that regulate the growth of a population are divided into two (2) main categories and these includes;
I. Density-independent factors.
II. Density-dependent factors.
Density-dependent are regulating factors such as predation, diseases, and competition that affect the size of the population of living organisms through decreasing or increasing mortality and birth rate.
Furthermore, density-independent factors do not have an increasingly greater effect as a population's density increases. Thus, its effect are reduced as a population's density increases in size.
What activities damage our lungs
Answers
Smoke: As we all know, cigarettes include toxic substances that trigger inflammation and destroy the lungs’ structure.1.
Mold: If too much moisture is present, mold can grow and become damaging to your airways. 2.
Chemicals: Inhaling chemical-filled air with things like noxious gas, chlorine, cleaning supplies and more can lead to threatening lung diseases.3.
Dust: Lung tissues can collect dust and particles over time which ends up injuring the airways.4.
Pollution: Not only can breathing in air pollutants cause irritation in your airways, but it also could lead to long-term lung damage.5.
Answer:
smoking and doing drugs
Help me please finish the hypothesis! Only have 2 minutes No websites
HYPOTHESIS: If 2 chambers of water are poured side-by-side, the warmer water will mix the cooler layer because it ___________
Answers
Answer:
Heat Transfer
Explanation:
If Two chambers of water are poured side-by-side, the warmer water will mix the cooler layer because the water molcules in a jar of hot water are more spread out and the two jars seek a balance of tempature.
A is a group of cells that have the same function.
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Answer:
it's true
tissues are group of similar cells the have Common faction.
many organs work together to accomplish a common purpose is called an organ system
Question 4
Mitosis maintains complex organisms by which of the following processes?
A The removal of waste from the body
B The exchange of gas with the environment
C The formation of sperm and egg
D The healing of a cut after an injury
Answers
Explanation:
option c is the correct as mitosis helps to create baby .
______ is also common at both divergent and convergent plate
boundaries
Answers
Looking at it we need the words that you can have but if it the place it commonly occurs at, I think it would be mid-oceanic ranges.
A chemist wants to show how the molecular structures of the major greenhouse-effect contributors allow them to
absorb heat.
Which of the following would the chemist not be modeling?
A) carbon dioxide
B) carbon monoxide
C) chlorofluorocarbons
D) nitrous oxide
E) methane gas
Answers
Answer:
Option C is the correct choice
Explanation:
The major contributor of green house effect are
a) Carbon dioxide (CO2)
b) Carbon Mono-oxide (CO)
c) Nitrous oxide
d) Methane
e) Ozone
The chlorofluorocarbons (CFCs) is a man made green house gas and hence the chemist will not model it as it does not allow to absorb heat. Instead it leads to non ending chain reactions with the ozone layer thereby degrading it and hence allow entry of harmful UV rays.
Option C is the correct choice
Which of these is an example of ACTIVE immunity?
A.) A baby receiving breast milk from a well vaccinated adult with a strong immune system.
B.) A person receiving a Hepatitis B vaccine prior to entering the healthcare field.
C.) A person receiving a tetanus shot after cutting themselves on a rusty metal nail.
D.) A person receiving an antivenom after a snake bite.
Answers
Answer:
I think the option b is correct
¿de que manera el desarrollo cientifico y tecnologico repercute en la agricultura ecologica ,como parte de las condiciones para la propuesta de emprendimiento familiar?
Answers
Answer:
Los desarrollos científico-tecnológicos han impactado positivamente sobre los sistemas de agricultura ecológica y en última instancia también sobre la agricultura familiar
Explanation:
La agricultura ecológica refiere a los procedimientos de explotación agrícola basados en la utilización sustentable de los recursos de la tierra y los métodos de fertilización orgánica, respetando el ambiente natural y evitando el uso de compuestos químicos artificiales (como por ejemplo plaguicidas químicos) y de cultivos transgénicos. Por otra parte, la agricultura familiar refiere a un tipo de agricultura ecológica basado en la dirección y la administración familiar. La agricultura familiar es el sistema de agricultura predominante en regiones pobres de América Latina y el Caribe, representando aproximadamente el 80 % de la producción agrícola. De este modo, el desarrollo de métodos eficientes de agricultura/ecológica familiar resultan fundamentales para lograr la seguridad alimentaria en la región y también para mitigar los efectos negativos del cambio climático. En este contexto, diferentes avances científico-tecnológicos han impactado positivamente sobre el manejo, eficiencia y productividad de la agricultura familiar como sistema de cultivo no sólo sustentable sino también eficiente, entre los cuales se destacan el desarrollo de mini-invernaderos, variedades mejoradas obtenidas a través de técnicas de mejoramiento genético convencional (selección a campo), trampas artesanales para la captura de insectos plagas, etc. Diferentes tecnologías/metodologías como las anteriormente citadas han sido ajustadas y validadas a partir de procesos de experimentación participativa con el objetivo de estudiar cuales son las condiciones de la zona que mejor se adaptan al tipo de cultivo y de incrementar la productividad de sistemas de cultivos sustentables.
The data below was collected in the field while studying the effect of pH on the growth of
duckweed, an aquatic plant. The data shows that duckweed has optimum growth at what
pH?
Field Data
Pond
pH of Pond
Water
Number of
Duckweed
Plants
A
6
150
B
12
300
с
8
500
D
4
80
Answers
Answer: Answer is c 8 500
Explanation: Find the growth, in this case it would be 4-12. So you want to find the difference between them by subtracting the two values. 12-4=8
HELP PlEASE
Which of the following is NOT a factor that affects climate? Question 6 options: how close you are to the equator how close you are to the ocean how close you are to mountains these all affect climate
Answers
Answer:
these all affect climate
Explanation:
The climate of a place is driven by altitude, latitude, and nearness to the ocean, nearness to the equator. The climate is not affected by time, but is affected by all the physical factors such as the earth's rotation, the axial tilt of angle of inclination of sun.lodine-131 is radioactive. If after 160 days only 1/8 of the sample remains, how long is
its half-life?
A. 92.2 days
B. 20 days
C. 53.3 days
D. 16 days
Answers
What is secondary succession
Answers
An example of Secondary Succession by stages:
1. An area of growth.
2. A disturbance, such as a fire, starts.
3. The fire destroys the vegetation.
4. The fire leaves behind empty, but not destroyed soil.
5. Grasses and other herbaceous plants grow back first.
6. Small bushes and trees begin to colonize the public area.
7. Fast-growing evergreen trees and bamboo trees develop to their fullest, while shade-tolerant trees develop in the understory.
8. The short-lived and shade-intolerant evergreen trees die as the larger deciduous trees overtop them. The ecosystem is now back to a similar state to where it began. good day
1. A protein in a cell membrane changed its
shape to move sodium and potassium ions
against their concentration gradients. Which on
molecule was most likely used by the protein
as an energy source?
A. ATP
B. ADP
C. catalase
D. amylase
Answers
Answer:
B. Lactic acid is produced
What produces toxic chemicals in the body?
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Explanation:
Chemicals can be toxic because they can harm us when they enter or contact the body. Exposure to a toxic substance such as gasoline can affect your health. Since drinking gasoline can cause burns, vomiting, diarrhea and, in very large amounts, drowsiness or death, it is toxic.Question 9
Food web....
A. An animal that eats only other animals
B. An animal that eats only plants
C. A diagram for displaying the feeding relationships among all the organisms in an ecosystem
D. An organism that eats dead or decaying matter and changes it into nutrients or minerals
Answers
Answer:
d is correct
Explanation:
An organism that eats dead or decaying matter and changes it into nutrients or minerals.
7. Since the allele for color blindness is located on the X chromosome, color
blindness
1 cannot be inherited
2 occurs only in adults
3 is sex-linked
4 none of the above
(HELP ME PLEASEEE!)
Answers
Hemophilia A and red-green color blindness are examples of X-linked recessive diseases. Color blindness to red and green. Red-green color blindness prevents a person from recognizing red and green hues (usually blue-green). Otherwise, though, they can see normally. Thus, option C is correct.
What allele for color blindness located on X chromosome?Females have two X chromosomes, while males have one X and one Y chromosome. The X chromosome is where the genes that might cause red-green color blindness are handed down. Men are more likely than women to have red-green color blindness, since it is X-chromosom-inherited.
One of the most prevalent genetic (inherited) disorders in the world is color blindness, which means it is typically inherited from your parents.
Therefore, the allele for color blindness is located on the X chromosome, color blindness is sex-linked.
Learn more about color blindness here:
https://brainly.com/question/29658462
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What transitions occurs when an ice cube shrinks
Answers
Answer:
it changes from solid water to liquid water.
Explanation:
need this answer quick please thanks
Answers
Answer:
Option C
Explanation:
This is the correct answer because asexual Reproduction Requires either 1 or 2 parents. Both Produce 100 percent of genes
I hope this helped!
The current world population is approximately seven billion people. Every person consumes resources in order to live. As the population continues to grow, how will this growth affect resources?
Answers
Answer:
they will run out
Explanation:
the resources are finite
6. Plant cells use sunlight to make their own food. Which structure allows plant cells to perform
this function?
A. nucleus
B. vacuole
C. chloroplast
D. mitochondrion
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What do the relative sizes of the boxes represent
Answers
Explanation:
The relative sizes represents that died at that certain spot. 2.Is the concentration and size of boxes the same at all locations on the map
What type of air mass forms over Nashville TN
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Five air masses affect the United States during the course of a typical year: continental polar, continental arctic, continental tropical, maritime polar, and maritime tropical. Continental air masses are characterized by dry air near the surface while maritime air masses are moist.
14 Pierre is studying the organs in the human digestive system. He looks at a
diagram of the
intestines, similar to the one that follows.
Which of the following correctly describes the diagram?
A Structure A is the small intestine, and structure B connects the mouth to the
stomach.
B Structure A is the small intestine, and structure B absorbs water from
digested material.
aliq
C Structure A is the large intestine, and structure B absorbs nutrients from
digested material.
D Structure A is the large intestine, and structure B produces bile and stores its
temporarily.
05