Carcinogens are best described as - environmental mutagens that cause cancer.
What is Mutagens ?Substances within the body that can cause mutations are called Mutagens. Because of the physical, chemical or biological mutagens some changes occurs in the DNA.
What is Cell Proliferation ?Substances that increase the growth rate of cells are termed as Cell Proliferation. Some extracellular proteins, PDGF helps in the cell growth. Environmental mutagens can cause cancer because it makes certain changes in the genes and also in the cell growth and functions which directly or indirectly affects the DNA replication during the cell division.
What are the types of Tumor ?There are two types of Tumor.
Benign tumor - which cannot move to the surrounding tissues, andMalignant tumor - that invade surrounding tissues.Thus from the above conclusion we can say that Carcinogens are best described as - environmental mutagens that cause cancer.
Learn more about Mutagens here: https://brainly.com/question/13837704
#SPJ1
Why is onpg used as the substrate for the β-galactosidase assay rather than lactose?
Answer:
Explanation:
Unlike lactose, the substrate O-nitrophenyl-beta-D-galactopyranoside (ONPG) is capable of penetrating the bacterial cell without the presence of permease. In the broth method of testing, the organism is taken from a medium containing a high concentration of lactose and is inoculated into the ONPG Broth.
True or false: as the most extensively used chlorine compounds, hypochlorites are used for sewage and waste water disinfection.
The statement is true.
What type of chlorides are used for sewage and waste water disinfection?Sodium hypochlorite (NaOCl) is a compound that can be used for water purification in the water purification plant. It is used on a large scale for surface purification, bleaching, odor removal and water disinfection purposes. Hypochlorites are used for sewage and waste water disinfection as the most extensively used chlorine compounds.
So we can conclude that the answer is true.
Learn more about chlorine here: https://brainly.com/question/24218286
#SPJ1
Directions
Task 1: Biologist Responsibilities
Research one or more of the following biology-related job fields: Field Biologist, Senior Biologist,
Conservation Biologist, Conservation Scientist, or Evolutionary Ecologist. Find a sample resume
within that field and identify some key skill sets that resume has. Are these skills that you feel you
already possess? Or would you need to grow some of these skills? Be sure to upload the
sample resume to the dropbox.
Type your response here:
The sample resume of a Senior Biologist is given in the pdf attached.
What are the skill sets that resume has?They includes:
MicrobiologyProject Management BacteriologyCell Culture Study Collaboration.Are these skills that you feel you already possess?Among the options of the skills, the ones that i possess are:
Project Management Study Collaboration.Would you need to grow some of these skills?Yes i would need to grow some of the skills such Bacteriology and Cell Culture. I know the foundation of the course but not too in-depth so I need to grow those skills.
Learn more about resume from
https://brainly.com/question/14218463
#SPJ1
What factors might favor the evolution of semelparity versus iteroparity in different species of salmon?
What factors might favor the evolution of semelparity versus iteroparity in different species of salmon?
A number of factors such as changes in water temperature, size at reproduction, energy loss during reproduction, and post reproductive feeding may significantly affect post reproductive mortality (Baird et al., 1986, 1987.
What is semelparity versus iteroparity?Living things have two different reproductive options: semelparity and iteroparity. A species is categorized as iteroparous if it experiences several reproductive cycles throughout its existence, and semelparous if it exhibits just one reproductive event before passing away
In truly semelparous species, death following reproduction is a component of a larger plan that includes optimizing reproduction at the expense of future existence. There will always be some iteroparous individuals who pass away between their first and second reproductive episodes, but this is not considered semelparity unless it is a symptom of a syndrome of programmed death after reproduction. Semelparity and iteroparity are extremes along a spectrum of potential methods rather than opposing ones strictly speaking.
To learn more about semelparity versus iteroparity from the given link:
https://brainly.com/question/14353409
#SPJ4
Bacteria with an optimum growth temperature of 37 degrees celsius are __________
Bacteria with an optimum growth temperature of 37 degrees celsius are called mesophiles.
What are mesophiles?These are a group of organisms that grow at moderate temperatures. Their optimum growth temperature ranges from 20 degrees Celsius to 40 degrees Celcius.
This term generally only applies to microorganisms, especially bacteria. There are other groups of bacteria which grow at relatively high or low temperatures
Thermophiles are bacteria that grow at a relatively high temperature and psychrophiles are bacteria that grow at relatively low temperatures.
The optimum temperatures of these bacteria are different because of the expression of certain alleles which release certain enzymes which are only active at particular temperatures.
Read more about mesophiles, here
https://brainly.com/question/15302637
#SPJ4
How many high-energy phosphates are generated or consumed in converting 1 mole of glucose to lactate?
For converting 1 mole of glucose to lactate only 2 high energy phosphate (ATP) is required. There is 7 ATP are produced per mole of glucose in glycolysis aerobically but aerobic respiration pyruvate is converted to lactate by dehydrogenase at cost of 2 NADH.
Glucose gets rearranged during the starting molecules and two phosphate groups are attached to it. These phosphate groups make the modified sugar- now called fructose -1, 6- bis-phosphate unstable and allowing it to split in half and form two phosphate bearing three carbon sugars.
In the process of glycolysis the direct transfer of high energy phosphate from 1,3- diphosphoglyceric acid and phosphoenol pyruvate to adenine diphosphate which result in the formation of two ATP molecules.
To learn more about the glycolysis here
https://brainly.com/question/15159050
#SPJ4
The process whereby heat flows by means of molecular collisions is referred to as:________
The process whereby heat flows by means of molecular collisions is referred to as conduction.
Conduction is the process by which heat energy is transmitted through collisions between neighboring atoms or molecules. Conduction occurs more readily in solids and liquids, where the particles are closer together than in gases, where particles are further apart.
Because in conduction molecules are closely packed. When one molecule is heated, it vibrates higher than lower energized molecules or the lower temperature molecules and collide with and finally transfer some energy to them.
The rate of energy transfer by conduction is higher when there is a large temperature difference between the substances that are in contact.
To learn more about conduction, here
brainly.com/question/12136944
#SPJ4
__________ are the primary means by which neisseria gonorrhoeae attaches to the mucous membranes of the reproductive tract.
Fimbriae are the primary means by which Neisseria gonorrhoeae attaches to the mucous membranes of the reproductive tract.
What is gonorrhea?Gonorrhea is a sexually transmitted disease (STD) caused due to bacterium Neisseria gonorrhoeae. This bacterium attaches with the help of fimbriae.N. gonorrhoeae infects the reproductive tract and attaches to the mucous membranes of cervix, uterus, and fallopian tubes in women, and the urethra in both women and men. This bacterium can also be transmitted through sharing of contaminated needles, from mother to child during birth.Gonorrhea can lead to pelvic pain, pus discharge from reproductive organs, painful urination.It can lead to infertility and risk of HIV/AIDS infection.To prevent infection, do not have unprotected sex, avoid sharing needles, regularly check for gonorrhea infection.Learn more about gonorrhea here:
https://brainly.com/question/25297483
#SPJ4
What percent of blood from digestion passes through the liver before returning to the heart?
100% of the blood from digestion passes through the liver before returning to the heart.
The hepatic portal system is the venous system that returns blood from the digestive tract and spleen to the liver. The raw nutrients in the blood are processed in the liver before the blood returns to the heart.
The hepatic portal vein supplies 75% of the blood to the liver, while the hepatic arteries supply the remaining 25%.
In the liver, carbohydrates and amino acids can be stored or used to synthesize new proteins and carbohydrates.
The liver also extracts vitamins and cofactors from the blood for storage, as well as filters any toxins that may have been absorbed along with the food.
To learn more about hepatic portal system
https://brainly.com/question/12975924
#SPJ4
Barbara mcclintock examined the mechanism for the appearance of purple spots in the kernels of yellow and white corn. She attributed the spots to?
Barbara Mcclintock examined the mechanism for the appearance of purple spots in the kernels of yellow and white corn. She attributed the spots to transposable elements(TE) or jumping genes.
McClintock studied the so-called Ac/Ds system in maize, which she learned about by carrying out conventional genetic breeding experiments with a peculiar phenotype. Through these tests, McClintock discovered that breakage happened at particular locations on the maize chromosomes.
She did, in fact, find the first transposable element (TE) at the aptly termed "dissociation" location of chromosome breakage (Ds). McClintock initially observed that the movements of Ds are controlled by an autonomous element called "activator" (Ac), which may also promote its own transposition. She later discovered that some TEs could "jump" autonomously.
To learn more about transposable element (TE) click here
brainly.com/question/20164506
#SPJ4
How are the line spectra of the different elements related to the observed color with the unaided eye?
Line spectra of different elements vary due to difference in wavelengths of emitted light.
To the unaided eye, the various wavelengths denoting colors of light given by an element are combined together, and appear as a single color that is a combination of the constituent colors.
Electrons in atoms usually occupy the lowest energy states possible (ground state). However, electrons can be excited to high energy states when they absorb excess energy.
When they return to the ground state, they release this excess energy in the form of light. Each atom or molecule releases a single photon of light for each electron energy transition it makes.
To learn more about Line spectra here
https://brainly.com/question/13599564
#SPJ4
One advantage of branched sugar polymers is the availability of more ends for chemical reaction.
a. true
b. false
The one advantage of branched sugar polymers is the availability of more ends for chemical reactions. So, the statement is true.
What are branched sugar polymers?Polysaccharides are simply the monomers of thousands of monosaccharides units. The kind of polysaccharide formed will be based on the kind of monosaccharide units involved.
The branching of monomers helps in the formation of polysaccharides. Branching of glucose monomers in the formation of different polysaccharides. These are starch and cellulose present in plants and glycogen in animals.
These kinds of polysaccharides are made of a lot of monomers and that is caused by the branching. This kind of branching can also help in the addition of more monomeric units to make a longer polysaccharide chain.
Therefore, an advantage of branched sugar polymers is the availability of more ends for chemical reactions.
Read more about polysaccharides, here
https://brainly.com/question/13265208
#SPJ4
What is the probability that a woman who is a carrier for the red-green color-blindness allele and a man who is color blind will have a child who is not color blind?
50 percentage of a woman who is a carrier for the red-green color-blindness allele and a man who is color blind will have a child who is not color blind.
What is color blindness?When you are unable to perceive colors normally, you are said to be color blind. It is often referred to as a color deficit.If you're color blind, you see colors differently from the majority of people. Color blindness frequently makes it challenging to distinguish between particular hues. Color blindness typically runs in families.Protanomaly, a reduced sensitivity to red light, deuteranomaly, a reduced sensitivity to green light, and tritanomaly, a lower sensitivity to blue light, are the several forms of anomalous conditions.Except when the color vision issue is caused by the use of specific medications or eye disorders, there are no therapies for the majority of color vision issues. Better color vision could be attained by stopping the medicine that's causing your vision issues or by managing the underlying eye condition.Learn more about color blindness here:
https://brainly.com/question/11682218
#SPJ4
In the carbon cycle, carbon dioxide and water are converted to glucose and oxygen by ________
Answer:
Photosynthesis
Explanation:
Gteen plants through this process to convert Carbon dioxide in the air and water to carbohydrate (glucose) and oxygen.
plsss help asap omg T-T
Breathing allows us to take in Oxygen and removes carbon dioxide.
When we inhale the ribs expand and make room for the lungs to fill with air.
These are the only ones I know I am so sorry but I hope it helps.
Is fructose-1,6-bisphosphatase activated, inhibited, or unaffected in response to a glucagon signal?
Fructose-1, 6-bisphosphatase is activated in response to a glucagon signal.
What is the purpose of Glucagon signals?Glucagon signals specify that fuel molecules are required in the bloodstream.So these signals activate Fructose-1, 6-bisphosphatase (F1, 6BP) so as to increase the level of sugar and other fuels required for production of energy.In the process of gluconeogenesis, new glucose molecules are synthesized from other non carbohydrate sources.As glucose is required in the bloodstream so F-1, 6BP should be activated as it acts as a rate limiting enzyme in gluconeogenesis.Gluconeogenesis occurs when the dietary intake of glucose is very low. Glucose is required as a source of energy by almost all body cells so in case of less oxygen it is synthesized from other molecules like amino acids.Learn more about gluconeogenesis here:
https://brainly.com/question/1425339
#SPJ4
What is burning of fossil fuels, slash and burn agriculture, and volcanic activity?
The burning of fossil fuels, slash and burn agriculture, and volcanic activity is called Air pollution.
Most automobiles and power plants burn fossil fuels. These non-renewable resources power nearly all manufacturing and other businesses. Carbon monoxide, nitrogen dioxide, sulphur dioxide, and hydrocarbons are a few of these pollutants.
Biomass is total amount of living material present in an environment. Burning biomass is done for slash-and-burn farming. The pollutants, which include CO2, carbon monoxide, methane, particulates, nitrous oxide, hydrocarbons, and organic and elemental carbon, are largely the same as those produced by burning fossil fuels.
When anything burns, particles are produced. Particulates can also be found in nature as a result of dust from wind or volcanic eruptions.
To learn more about pollutants click here
brainly.com/question/23615409
#SPJ4
Why do you think the value of pk1 increases for alanine when it's part of an oligopeptide compared to free alanine?
The value of pk1 increases for Alanine when it's part of an oligopeptide compared to free Alanine due to decreased electrostatic interaction between the amino group and carboxylic group which lowers the strength of acidic group i.e. carboxylic group.
The amino acids are amphoteric in nature and have two or three pK values, depending on their side chains. pKa1 is the α-carboxyl group, pKa2 is the α-ammonium ion, pKa3 is the side chain group (if applicable).
Electrostatic interaction between the carboxylate anion and the protonated amino group of the Alanine zwitterion favorably affects the ionization of the carboxyl group. This favorable interaction decreases as the length of the poly-Ala increases, resulting in an increase in pK1.
To learn more about amino acids
https://brainly.com/question/15888022
#SPJ4
In the context of nutritional status assessment, height, body weight, and body composition are frequently used?
Dietary assessors in the context of nutritional status assessment ,height , body weight and body composition are frequently used.It is important not only in study of associations between diet and health related outcomes but also for nutritional status of patients in clinical settings.
Anthropometry is the measurement of physical dimension such as height , body weight and composition of human body to provide information related to individuals nutritional status.
It involves the collection of information on food and drink consumed over specific time that is coded and processed to compute intakes of energy and nutrients or others dietary constituents using food composition tables.
To learn more about the nutrients here
https://brainly.com/question/1268939
#SPJ4
What are the products of heterotrophs that are used by autotrophs for their metabolism?
The products of heterotrophs that are used by autotrophs for their metabolism are carbon dioxide and water.
What are heterotrophs?An organism is referred to as a heterotroph if it consumes different plants or animals seeking food and energy. Its origins are in the Greek words hetero, which means "other," and trophe, which means "nutrition."
Some characteristics of heterotroph are-
In a food chain, a group of creatures that supply energy and nutrients to other organisms, heterotrophs inhabit the first and second levels. Three trophic levels, that characterize an organism's function in an ecosystem, make up each food chain. The first food level is occupied by autotrophs, which include plants and algae.What is autotrophs?Autotrophs are referred to as producers since they can generate their own food using energy and raw resources. Plants, algae, and several varieties of bacteria are examples.
Some characteristics of autotrophs are-
An creature that can make its own nourishment by the use of light, water, co2, or other substances is an autotroph. Autotrophs are also referred to as producers because they make their own nourishment.The majority of autotrophs produce their food through a process known as photosynthesis. In photosynthesis, photosynthetic organisms use the sun's energy to turn the air's carbon dioxide and the soil's water into glucose, a nutrition.To know more about kind of organism is a heterotroph, here
https://brainly.com/question/4933024
#SPJ4
For the dna fragment g-t-a-g-t-a, what is the nucleotide sequence for the complementary dna strand?
DNA fragment g-t-a-g-t-a the complementary strand will be c-a-t-c-a-t.
A pair of complementary bases are found at corresponding places on each of the two chains that make up a double helix of DNA. An area where two nucleic acid chains are connected by a series of base pairs.If you know the sequence of the template strand, you can figure out the sequence of a complementary strand. Each base in one of these two strands adheres to its companion in the other, making them complimentary. While the G-C pairs are joined by three hydrogen bonds, the A-T pairs are joined by just two.learn more about complementary strand here: https://brainly.com/question/1534778
#SPJ4
What is the role of alveoli in respiration
Answer:
What is the role of alveoli in respiration ⇔ Alveoli are the place where the exchange of gases takes place. The outer part of alveoli has blood vessels. These vessels are carrying Co2 rich blood to exchange at the alveoli. The O2 from the alveoli is diffused into the blood while co2 is sent into the lungs. That O2 rich blood is then carried to heart to pump it to the whole body. and this process continues. The alveoli are where the lungs and the blood exchange oxygen and carbon dioxide during the process of breathing in and breathing out.
Explanation:
I hope this helps and have a good day!
Which equation is an expression of the second law of thermodynamics for a spontaneous process?.
The second law of thermodynamics states that a spontaneous process increases the entropy of the universe, S(univ) > 0. If ΔS(univ) < 0, the process is nonspontaneous, and if ΔS(univ) = 0, the system is at equilibrium
What is thermodynamics ?The science of thermodynamics examines the connections between heat, work, temperature, and energy. The rules of thermodynamics explain how energy moves inside a system and whether or not the system is capable of performing beneficial work on its surroundings.
Energy cannot be generated or destroyed, according to Thermodynamics' First Law. The entropy of the cosmos increases for spontaneous processes, according to the second law of thermodynamics. Third Law of Thermodynamics: Entropy is zero in a flawless crystal at absolute zero Kelvin.Learn more about Thermodynamics here:
https://brainly.com/question/13059309
#SPJ4
Which of the following was
MOST responsible for the
turn-around in water quality
in Lake Washington?
A. adding additional fertilizers to the lake
B. adding excess pollutants to the lake
C. regulations on sewage treatment
D. addition of pollution-eating bacteria
Most responsible for the turn-around in water quality in Lake Washington is option c) regulations on sewage treatment.
What does sewage treatment mean?To prevent water pollution from discharges of raw sewage, sewage treatment is a sort of wastewater treatment that tries to remove contaminants from sewage to generate an effluent that is appropriate for discharge to the surrounding environment or an intended reuse application. Sewage includes pre-treated industrial effluent as well as wastewater from homes, companies, and possibly other sources. There are many different sewage treatment methods available.
Decentralized systems (including on-site treatment systems) and huge centralized systems that transport sewage to a treatment facility via a network of pipes and pump stations are examples of these. Urban runoff (stormwater) from cities with combined sewers is also transported by the sewers to the sewage treatment facility. Sewage treatment often involves two main stages, called primary and secondary treatment.
Learn more about sewage treatment here:
https://brainly.com/question/27936084
#SPJ1
The primary symptoms of _________________ are muscular rigidity, slowness of movement, a resting tremor, and postural instability
The primary symptoms of Parkinson's disease are muscular rigidity, slowness of movement, a resting tremor, and postural instability.
What are the causes of Parkinson’s disease?Parkinson's disease is a disorder of the central nervous system which results in unintended movements like uncontrolled shaking, stiffness, and difficulty to coordinate and balance.This is caused due to damage of nerve cells in the basal ganglia of brain which leads to decrease in levels of dopamine (a neurotransmitter).Nerve endings that release norepinephrine also get damaged.Initially the symptoms are mild which gradually worsen as the disease progresses.It leads to behavioral changes, fatigue, sleep disorders, depression.This disease can be controlled by taking medications which increase the level of dopamine and other neurotransmitters and by performing therapies which control body movements.Learn more about Parkinson’s disease here:
https://brainly.com/question/5126740
#SPJ4
Ice picks, leather punches, and screwdrivers are capable of producing ________ that are normally small, have little or no bleeding, and can be easily overlooked.
Ice picks, leather punches, and screwdrivers are capable of producing Puncture wounds that is wounds made by pointed objects and often appear to be on the surface.
This type of wounds normally small, does not bleed excessively and can appear to close up. But these wounds are prone to be infection and must be treated appropriately as soon as possible.
It can be deep wound that occurs due to some Sharpe and pointed such as safety pins , in that situation wound will be deep but no bleeding and if possible wounds can easily become infected.Leaving a wound uncover may dry and out new surface cell then healing process is started.
To learn more about infection here
https://brainly.com/question/9260382
#SPJ4
What is the best way for employees to verify the functionality of ppe program at a workplace?
The best way for employees to verify the functionality of ppe program at a workplace is to check if the written PPE plan document covers necessary requirements and verify the date of its most recent view.
An extensive PPE (personal protection equipment) programme is required. At the planning, development, and implementation stages, it calls for commitment and active involvement from all levels, including senior management, supervisors, and employees. These crucial components of a successful PPE programme are hazard identification and risk assessment.
The use of personal protective equipment (PPE) is crucial in any professional context, even when the world is not experiencing the widespread effects of a pandemic, as it helps prevent accidents, diseases, and fatalities. Gloves, foot and eye protection, protected hearing equipment (earplugs, muffs), hard helmets, respirators, and complete body suits are a few examples of PPE.
Learn more about PPE here;
https://brainly.com/question/18003651
#SPJ4
When sympathetic activation occurs, there is increased activity in the cardiovascular and respiratory centers of the ________.
When sympathetic activation occurs, there is increased activity in the cardiovascular and respiratory centers of the
Pons and medulla oblongata
What is sympathetic activation?
One of the three divisions of the autonomic nervous system, along with the parasympathetic and enteric nervous systems, is the sympathetic nervous system (SANS or SYNS). The enteric nervous system is occasionally regarded as a component of the autonomic nervous system and other times as a separate entity.
The autonomic nerve system controls the body's automatic movements. The major function of the sympathetic nervous system is to activate the body's fight-or-flight response. However, in order to maintain homeostasis, it is continually active. The parasympathetic neural system, which drives the body to "eat and breed" before (then) "rest-and-digest," is said to be antagonistic to the sympathetic nervous system.
To learn more about sympathetic activation from the given link:
https://brainly.com/question/15057890
#SPJ4
__________ is the situation when one hormone cannot exert its full effects without another hormone being present
Permissiveness is the case when one hormone cannot exert its full effect in the absence of another hormone.
What is permissiveness?Permissiveness is the condition when a hormone cannot fully exert its effects in the absence of some other hormone. When two or more hormones generate the very same effects in a target cell, the effects are amplified.
Permissiveness is a biochemical phenomenon in endocrinology in which the existence of one hormone is required for yet another hormone to exert its full impact on a target cell.
The permissive effect, which occurs when one hormone is present and allows some other hormone to act.
Thus, the answer is permissiveness.
For more details regarding permissiveness, visit:
https://brainly.com/question/13981915
#SPJ4
Features that result from wave deposition include
Select one:
a.
groins
b.
barrier islands
c.
sea walls
d.
sea stacks
Answer:
b.barrier islands
Explanation: