This chart shows the types of ground tissue and their functions. mc012-1.jpgmc012-2.jpg Which row (A, B, C, or D) best matches each ground tissue with its function? A B C D
The right answer is A.
Let's resume Plant tissues and their roles:
* Meristems are devolved to growth by cell multiplication;
* The covering fabrics ensure the protection of the organs vis-à-vis the
external environment;
* Parenchyma represent the bulk of the organ volume; they are
formed of poorly differentiated cells and perform various functions:
chlorophyll assimilation, storage of reserves ...
* Support tissues are made of thick-walled cells of lignin or
cellulose, giving the organs a certain rigidity;
* The conductive tissues ensure the circulation of the sap, to the organs
aerial for raw or ascending sap, to underground organs for
sap developed or descending;
* The endoderm and the pericycle are two cellular bases surrounding the
central cylinder;
* The secretory tissues release various substances (nectar, latex ...).
The right answer is A.
Which is Not a feature associated with valley glaciers
Answer:
cirque
arroyo
horn
arête
Explanation:
Arroyo is the correct answer
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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 __________.
An oxygen atom with a charge of (+2) has ______________________.
a. two more protons than the neutral atom
b. two fewer protons than the neutral atom
c. two more electrons that the neutral atom
d. two fewer electrons than the neutral atom
electron transport chain : _____ production :: Calvin cycle : _____ production
Which of the following statements is true?
a.Slow, deep breathing makes less gas available for gas exchange.
b.Breathing rate and depth do not affect gas exchange.
c.Rapid shallow breathing can reduce the amount of gas exchange without changing the total amount of gas moved in a minute.
d.Normal breathing rates and depth provide the most oxygen for exchange.
In a lab you are conducting tests with various chemicals and neurotransmitter receptors. you notice that exposed frog muscle cells depolarize when you add the chemical nicotine to the acetylcholine (ach) receptors. what does this tell us about the relationship between neurotransmitters and their receptors?
John and Pat are identical twins with identical DNA. John works in a movie theater, and Pat works as a lifeguard. They have very different skin pigmentation. Which is the best explanation of the difference?
The answer is:
A) Skin color, a polygenic trait, is also determined by environmental factors.
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Why is a single base-pair deletion mutation within a protein-coding sequence more likely to be harmful than a single base-pair change mutation?
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.
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?
what measurement best describes the results of a scientific experiment regarding volume
Bacillus anthracis, the bacterium that causes the deadly disease anthrax produces thick endospores. What is the significance role of spore formation in the reproductive cycle of this bacterium?
Through single-cell recordings, researchers have identified the ________ neurons in the visual system.
Imagine that you are given some chemoorganotrophic bacteria to grow. what should you use as a source of energy for this type of bacteria? imagine that you are given some chemoorganotrophic bacteria to grow. what should you use as a source of energy for this type of bacteria? methane ammonia sugar hydrogen sulfide light
Suppose a group of bobcats that normally live and hunt in the tops of mountains, start hunting prey at the base of the mountain and move into the valley below. Which of the following will most likely happen to the prey in the valley? a. Their numbers will soon increase. b. Their numbers will soon decrease. c. They will move to the tops of the mountains. d. They will remain unchanged.
Answer:
A predator is an organism which kills other organism to obtain it as food, whereas as a prey is the inferior organism which is incapable of defending itself and being killed by the predator.
The group of bobcats being predating the prey at the top of the mountain when moves to valley below is likely to decrease the population of the prey in the valley because although the bobcat change the location of their habitat the urge for getting food by hunting will be retained in them.
- How "sartans" like Cardiosartan act in the renin-angiotensin-aldosterone system?
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
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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?
During the Cambrian period on Earth, the ___________ layer developed along with the massive production of oxygen.
A) ozone
B) ocean
C) mantel
D) carbon dioxide
Answer:
A) Ozone
Explanation:
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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.
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.
2.What simple infection control procedure helped Dr. Ignaz Semmelweis save a number of lives in the 1800s?
Answer:
The correct answer is the - hand washing before lunch and clinical process.
Explanation:
Dr. Ignaz Semmelweis was a Hungarian physician that is known as father of the infection control by the hand washing. He is also known as the saviors of mothers as at that time mothers were dying after childbirth due to the infection.
Dr. Ignaz suggested the hand wash procedure before clinical procedures and eating helps in the saving life by preventing infection due to unhygienic hands.
Thus, the correct answer is - hand washing before lunch and clinical process.
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
The Milky Way is a _____ galaxy.
Answer:
Barred Spiral.
Explanation:
A barred spiral galaxy is a type of spiral galaxy which has a bar-shaped structure in the center which is made up of stars.
The milky way is a barred spiral galaxy because its appearance conforms to the classification of galaxies given by Hubble.
The milky way has spiral arms and a bulge in the center and one or more bars radiate out from this central bulge and hence it is a spiral barred type of galaxy.
How does the second line of host defense relate to the warmth and redness of the skin around the wound?
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
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.
Our ______ is part of a network of blood vessels that distribute and collect materials from throughout the body.
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?