While __________ bacteria retain carbol fuchsin after acid-alcohol treatment, __________ bacteria are decolorized by acid-alcohol?
Final answer:
Acid-fast bacteria retain carbol fuchsin after acid-alcohol treatment because of the protective waxy mycolic acid in their cell walls; non acid-fast bacteria are decolorized and counterstained blue with methylene blue.
Explanation:
While acid-fast bacteria retain carbol fuchsin after acid-alcohol treatment, non acid-fast bacteria are decolorized by acid-alcohol. Acid-fast bacteria, which include mycobacteria, a pathogen of humans and animals, possess the waxy substance mycolic acid in their cell walls. Mycolic acid acts as a protective barrier making these cells impervious to certain staining techniques like the Gram stain, and as a result, these cells require a special staining method known as acid-fast staining.
To identify these bacteria, the Ziehl-Neelsen or Kinyoun staining methods are used, which involve heating the bacterial sample with carbol fuchsin, then treating with acid-alcohol. The acid-fast cells retain the bright pink or red coloration due to their waxy cell walls resisting decolorization, whereas non acid-fast cells lose the pink to red color and are counterstained with methylene blue, appearing blue.
Good conductors must
a. resist neutron flow.
b. readily accept electron flow.
c. readily accept neutron flow.
d. resist electron flow.
Answer: b. readily accept electron flow.
pls mark me Brainliest
Our ______ is part of a network of blood vessels that distribute and collect materials from throughout the body.
Nina is exploring her gender identity and sexual orientation.
Which best describes how the role of the media might influence Nina during this time in her life?
The media would help her decide because television shows are always unbiased about gender issues and do not stereotype.
The media could make things difficult for her because television sometimes portrays rigid ideas about gender roles.
All forms of media will help her decide because the media always portrays rigid ideas about gender roles.
All forms of media will make things easy for her because the media always portrays open and fair ideas about gender roles.
The correct answer is B. The media could make things difficult for her because television sometimes portrays rigid ideas about gender roles.
Explanation:
Gender identity and sexual orientation are important aspects of sexuality in human beings. Gender identity refers to the gender individuals identify with, while sexual orientation refers to the attraction of individuals for other people including attraction to the opposite gender, the same gender, both, etc. These aspects are commonly defined during adolescence and it is common individuals look for models to define or identify themselves including models in television.
The main issue with this is that media tends to portray rigid ideas about gender roles because there is little or no inclusion of individuals with alternative gender identities such as transgender people or individuals with alternative sexual orientations such as bisexual people. Due to this, the media could make things difficult for Nina in terms of exploring her gender identity and sexual orientation because the media sometimes portrays rigid ideas about these aspects.
How does biodiversity contribute to the overall health of an ecosystem? provide specific examples and utilize at least one scholarly resource to back your answer?
Within the vertebrate eye, there is a crystalline protein that is in charge of making fine adjustments in the focus of images on the photosensitive layer. what is the name of this crystalline protein? retina cornea iris lens pupil
A t-shirt manufacturer designs shirts showing caricatures of certain generic “rich” athletes. these are not literal depictions but rather exaggerated images of these athletes. what would be the most likely result
A patient is scheduled for a fiberoptic colonoscopy. what does the nurse know that fiberoptic colonoscopy is most frequently used to diagnose? cancer screening inflammatory bowel disease bowel disease of unknown origin occult bleeding
Which is Not a feature associated with valley glaciers
Answer:
cirque
arroyo
horn
arête
Explanation:
Arroyo is the correct answer
Hope it helps!
G the gene shuffling that occurs during meiosis allows two parents to produce genetically diverse offspring. true or false
The statement is true; meiosis allows two parents to produce genetically diverse offspring. This is due to processes like crossing-over and random assortment of chromosomes, resulting in a substantial potential for genetic variation.
Explanation:Genetic Diversity Through MeiosisThe statement that gene shuffling during meiosis allows two parents to produce genetically diverse offspring is true. Sexual reproduction, specifically through the process of meiosis, enables tremendous potential for genetic variation. This diversity arises from multiple mechanisms during meiosis. First, during prophase I of meiosis I, crossing-over between nonsister chromatids of homologous chromosomes generates recombinant chromatids with new combinations of maternal and paternal genes. Another mechanism is the random assortment of chromosomes during metaphase I, which ensures that each gamete receives a unique combination of maternal and paternal chromosomes.
The random orientation of homologous chromosomes creates over 8 million possible combinations for each individual gamete without considering the additional variation from crossover events. These gametes, when united through the process of fertilization, can result in a staggering number of unique genetic combinations between any two people, far surpassing the total human population. The concept of independent assortment, therefore, plays a critical role in contributing to the genetic diversity integral for adaptation and evolution.
plants take up carbon dioxide from the air and nutrients from the soil. this is an example of interactions between the
A) geosphere, cryosphere, and atmosphere
B) biosphere, atmosphere and geosphere
C) atmosphere, hydrosphere and geosphere
D) cryoshpere, atmosphere and hydrosphere
Answer:
B. biosphere, atmosphere, and grosphere
Explanation:
atmosphere : carbon dioxide
biosphere : where organisms live
geosphere : any part of earth's parts matter
Have a wonderful day! :)
All of the populations of different species that occupy and are adapted to a given area are referred to by which term?
One potential cause of valve dysfunction is rupture of the chordae tendineae why would this lead to valve dysfunction
Alcohol is A. A drug B. An anti depressant C. A hallucinogen D. All of the above
Answer:
Option A, drug
Explanation:
Alcohol is a drug that comes under the category of depressant. It is neither an anti depressant nor hallucinogen.
Being a depressant , consumption of alcohol causes slowing down of bodily functions. The effects of alcohol consumption depends on the amount of alcohol being consumed. When small quantity of alcohol is ingested it acts as a stimulant, but when it is ingested in large quantity it can produce severe effects of depressant such as pain, toxicity, & unconsciousness.
Hence, only option A is correct.
Alcohol is a depressant drug (A)
Further explanationAlcohol, also known by its chemical name ethanol, is a psychoactive substance that is the active ingredient in drinks such as beer, wine, and distilled spirits (hard liquor).
According to the Webster's dictionary, drug is something that causes addiction or a marked change in consciousness, adding that it is often an illegal substance. According to 2013 regulatory guidance, FDA said that a food is considered a drug if it is “intended for use in the diagnosis, cure, mitigation, treatment, or prevention of disease".
Alcohol is a drug that comes under the category of depressant. Alcohol, also known by its chemical name ethanol is also classified as depressant. Depressants have effects such as slowing reaction time, poor concentration, and visual disturbances. Depressants means that means any amount you drink can make you more likely to get blues. If we drink a lot alcohol it can harm your brain and leads to depression. The effects its we're likely to do bad decisions or act on impulse. But if you consume a small quantity of alcohol when it is ingested it acts as a stimulant
Learn moreLearn more about alcohol https://brainly.com/question/12216420Answer details
Grade: 9
Subject: biology
Chapter: Alcohol
Keywords: Alcohol
Through single-cell recordings, researchers have identified the ________ neurons in the visual system.
Research by the national highway traffic safety administration has shown that drivers who get more citations are in more crashes
The research explores the relationship between traffic citations and crash involvement, using both real-world and fictional data to illustrate how driver behavior and safety measures are analyzed for public transportation policy development. Data analysis includes examining racial profiling, driver error in accidents, and safety feature improvements in vehicles over time. These analyses are critical to forming effective road safety policies and regulations.
Explanation:The research mentioned posits a correlation between frequent traffic citations and a higher rate of involvement in crashes among drivers. To explore this relationship, let's consider fictional and real-world data. In a fictional study, fifteen drivers accumulated thirty-three traffic citations over seventeen days, which led to the early termination of the experiment due to depleted funds for paying fines and decline in participant enthusiasm. Sociologist Frances Heussenstamm examined the correlation between traffic stops and race-based bumper stickers to understand the issue of racial profiling. Furthermore, data from the American Automobile Association suggests that driver error is a primary cause behind a significant proportion of fatal auto accidents, a finding that can be tested statistically. These scenarios underscore the relevance of driver behavior and law enforcement on road safety.
Statistically analyzing road safety data, such as the number of top safety picks among cars, can lead to more informed decisions regarding vehicle design and traffic regulations. The Insurance Institute for Highway Safety annually publishes safety information which can be used to evaluate whether safety in cars has improved over the years. Recognizing driver error as a major contributor to accidents, such analyses are critical in shaping policies and practices aimed at reducing traffic-related injuries and fatalities. Actual U.S. Census Bureau data on fatal motor vehicle traffic crashes can be referenced to better understand trends and implement safety measures.
When conducting such research, the primary statistic used is the proportion of incidents or characteristics within a certain population. For example, the proportion of driver dummies that would have suffered head injuries if they were real people in a controlled car crash test is a critical statistic for evaluating vehicle safety. Safety measures like traffic signal installations are often justified by statistics indicating unacceptable accident rates in an area. Therefore, compiling and scrutinizing such data is fundamental for public safety and transportation policy development.
An experiment is designed so that you can observe the differences between the experimental group and the
Answer:
Control group
Explanation
In every experiment, we must need a standard or control to compere the other variations or treatments we assay. For example, we want to know the effect of a new fertilizer in plants. We have one group of plants without fertilizer and one group with fertilizer. after a month we see if the fertilizer is effective in promoting growth, we compare the size of the plants with and without if it is effective the plant will be taller than control group.
Answer:
Control group
Explanation:
A controlled experiment is one in which a control group is used to compare with an experimental group in a test of a causal hypothesis. The control group is the group that, on an experimental level, is subject to pretest and posttest, but not to treatment or intervention. Thus, the control group differs from the experimental group only in the absence of intervention or impact of the experimental (independent) variable, or its manipulation being equivalent from the point of view of sampling to the experimental group.
Define accommodation. which part of the eye serves this function? how does its shape change with the distance between you and the object you are looking at?
Dr. martinez's patient has __________. the doctor wants to use an evidence-based treatment to reduce the symptoms; therefore, she will treat the patient with __________.
Although all examples listed below are important considerations for the prevention and spread of disease, which eight (8) times must you wash your hands when caring for children according to maryland regulations
Granite is an example of _____ igneous rock that forms deep beneath Earth’s surface
When you hyperventilate (breathe too fast), respiratory alkalosis (elevated blood ph) can occur, which can cause you to faint. a common but potentially dangerous method to reverse respiratory alkalosis is to hold a paper bag over your mouth and take normal breaths, thereby rebreathing the exhaled air. how might this method reverse respiratory alkalosis?
the first law of thermodynamics states that energy can't be created or destroyed. If people can't create energy, where do we get energy to do work
Organisms get energy from food (or sunlight for plants), converting it into ATP and usable forms, following the first law of thermodynamics—energy is transformed, not created.
The first law of thermodynamics, often referred to as the law of conservation of energy, states that energy cannot be created or destroyed; it can only be transferred or converted from one form to another. This principle applies universally to all energy transformations, including those within biological systems, where living organisms like humans derive energy from.
1. Metabolism: Organisms convert chemical energy stored in food (in the form of glucose, fats, and proteins) into usable forms such as ATP (adenosine triphosphate). ATP is the primary energy currency of cells and is used for various cellular processes and work.
2. Cellular Respiration: In aerobic organisms like humans, cellular respiration occurs in mitochondria, where glucose and oxygen are converted into carbon dioxide, water, and ATP. The breakdown of glucose releases energy that is used to synthesize ATP molecules.
3. Digestion and Absorption: The process starts with digestion, where complex molecules in food are broken down into simpler forms that can be absorbed into the bloodstream. These nutrients are then transported to cells where they undergo cellular respiration to release energy.
4. Photosynthesis (for plants): Plants and some bacteria convert light energy from the sun into chemical energy through photosynthesis. This energy is stored in glucose and other carbohydrates, which are then consumed by organisms higher up in the food chain.
Acetate has a/an ________ shaped cross section
Acetate has a planar shaped cross section due to its resonance hybrid structure, where the negative charge is equally distributed between the two oxygen atoms, each with a bond order of 1 1/2.
Acetate, a common anion found in many biological and chemical systems, has a planar shaped cross section. This is inferred from its 3D structure based on X-ray crystallographic studies and resonance stabilization. The acetate anion, with the formula CH3COO-, has two carbon-oxygen (C-O) bonds that are identical in length at 126 pm, which indicates a resonance hybrid structure.
This bond length is between the length of a C=O double bond and a C-O single bond, implying that both bonds have a bond order of 1 1/2. In this structure, the negative charge is delocalized and equally distributed between the two oxygen atoms, each carrying a charge of -1/2.
The cross-section, or the shape visible when looking at one end of a part of a structure, of a molecule like acetate, which has equivalent bonds, is consistently planar. This planarity results from the resonance forms, where the charge is not localized but spread over the molecule, enhancing its stability and influencing its shape. Acetate's molecular configuration contrasts with nonresonant structures, where the negative charge might be more localized, leading to different molecular shapes.
Chemical properties and molecular structures are closely linked, as demonstrated by different molecules like acetic acid and methyl formate, which, despite having the same molecular formula, display unique structures and chemical behaviors.
Which species' biological classification translates to the “goddess of hairy shellfish” and was first discovered in the Pacific Ocean in 2005?
A fatty acid that lacks at least one hydrogen along its chain is considered to be
Compare the parts of a lily (flower) and an apple (fruit).
Lilies and apples serve different roles in plant reproduction, with lilies being flowers that attract pollinators, and apples being fruits resulting from mature ovaries. Lilies have petals, sepals, stamens, and pistils, while apples have an exocarp, mesocarp, endocarp, and seeds. The main difference is their function and structure related to the plant's reproductive process.
Comparing the Parts of a Lily (Flower) and an Apple (Fruit)
Both lilies and apples are parts of plants but serve different purposes and have different structures. Let's break down their main components:
Main Parts of a Lily
A lily is a type of flower, which has several essential parts:
Petals: Often colorful to attract pollinators.
Sepals: Protect the flower bud before it opens.
Stamens: The male reproductive part, producing pollen.
Pistils: The female reproductive part, which includes the ovary, style, and stigma. Lilies are an example of a superior flower, where the ovary is above other flower parts.
Main Parts of an Apple
An apple is a fruit, which means it is a mature ovary that was once part of a flower. It consists of:
Exocarp: The outer skin.
Mesocarp: The fleshy part that we eat.
Endocarp: The inner part surrounding the seeds.
Seeds: Found inside the core of the fruit.
The fruit develops after pollination and fertilization, signifying the transformation from a flower's ovary to a fruit.
By comparing these two, we can see that while a lily focuses on reproduction through its vivid and structured flower parts, an apple represents the post-fertilization stage containing seeds for further plant growth.
A thickened horizontal stem that grows underground and produces flowering plants such as canna and bearded iris is called a
Answer:
The answer is A rhizome is a stem of a plant that is growing underground and is growing horizontally. It is also known as rootstocks
Explanation:
How does the second line of host defense relate to the warmth and redness of the skin around the wound?
Flatworms use a system of canals and tubes with the ______ as their excretory organ.