When both acid-fast and non-acid-fast cells if no heat was used in the staining procedure the cell wall becomes hydrophobic and impermeable. It happens because most stains and chemicals in aqueous material are in the absence of heat due to the waxy, destructive structure. It's possible that we neglected to heat the solution or decolored it excessively.
Acid fast stains are used to differentiate acid-fast organisms such as mycobacteria. Mycolic acids make up a large portion of the cell walls of acid-fast bacteria. Nonacid-fast bacteria will stain blue/green with the Kinyoun stain, while acid-fast bacteria will stain red. Non-acid fast bacteria are those that decolorize and lose their carbol fuchsin red color.
The primary difference between acid-fast and nonacid-fast bacteria is that acid-fast bacteria resist decolorizing by acid after receiving a stain whereas non-acid-fast bacteria are readily decolorized by acid after staining.
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The lowest salinity in the ocean occurs near the equator, where precipitation exceeds evaporation and the ________ biome is located?
desert
The lowest salinity in the ocean occurs near the equator, where precipitation exceeds evaporation and the desert biome is located
Water is lost by evaporation, which makes the remaining water saltier.precipitation ( which adds fresh water, thereby diluting the seawater and making it less salty)fresh (river) water influx ( which makes the seawater freezes, salts are excluded from the ice, leaving the unfrozen seawater saltier)the sea ice freezing and melting. (Salts are left out of the ice when seawater freezes, making the unfrozen seawater saltier.)Salinity is high where the world's great deserts are located. In certain regions, both on land and at sea, evaporation outpaces precipitation. Surface salinity surpasses the typical range in a confined sea, such as the Mediterranean, where there is little input of fresh water.Near the equator, there is less evaporation due to high precipitation and cold water rising from the deep sea and moving westward in the tropical eastern pacific and eastern Atlantic oceans.To learn more about biomes visit:
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WARM-UP
Where did we come from? Are we alone in the
Universe? Expound your answer.
Answer:
Humans originated from Africa around 200,000 - 2 million years ago. There is fossilized evidence from back then that tells us when we humans may have formed. We went through about 15 different evolutions until coming to what we are today. To answer your other question, no, we are not alone in the universe, because we are united with many other organisms and life forms that live alongside us.
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There are three swellings that occur at the anterior end of a fluid-filled tube in the developing embryo. these three swellings eventually develop into the adult:__________
There are three swellings that occur at the anterior end of a fluid-filled tube in the developing embryo. These three swellings eventually develop into the adult forebrain, midbrain, and hindbrain.
What is brain?Brain is defined as an important organ of body which controls all the functions of the body and have command on all the body organs.
The outermost part of brain is known as dura mater which consist of a strong membrane layering and it is thick located just beneath the skull and vertebral column. The outermost part or cerebrum has billions of neurons and glia that are responsible for the formation of cerebral cortex, the outermost part.
Whenever body stuck in a dangerous situation, the signal in the form of information is conveyed to brain and the particular part that receives the signal is known as amygdala.
Therefore, These three swellings eventually develop into the adult forebrain, midbrain, and hindbrain.
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How are bacteria, archaea, fungi, protozoa, algae, and viruses distinguished on the basis of structure?
Bacteria, archaea, fungi, protozoa, algae, and viruses are distinguished on the basis of a structure by the three-domain system.
Three-domain system is a classification system in which cellular life is classified into three types which are archaea, bacteria, and eukarya domain.
Archaea are organisms that are made up of cells that lack a nucleus and other membrane-bound organelles which means that they are prokaryotic.
The domain bacteria differs from archaea in the composition of the cell wall and cell membrane in that the cell wall of bacteria consists of peptidoglycan while the cell walls of archaea do not consist of peptidoglycan. The lipids in the membrane of archaea are enclosed with hydrocarbons, unlike the bacteria in which lipids are enclosed with fatty acids.
Fungi and algae are included in the domain eukarya since they consist of a membrane-bound nucleus and hence are eukaryotic. Fungi and algae differ in cell structure in that the cells of algae have a single nucleus while the cells of fungi are multinucleated.
Viruses are not considered a part of any of the domains since viruses are not made of cells and they don't have the capability to perform any metabolic function. They remain inactive outside the host cell.
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The binding of a molecule to a cell-surface receptor may result in the activation of another molecule within the cell which, in turn, causes an alteration in cell function. What is this molecule within the cell called?.
Adjacent cells cling to one another with the aid of cell adhesion molecules, which are present on the cell surface. When a chemical binds to a cell-surface receptor, it may stimulate another molecule inside the cell to become active, which changes how the cell functions.
What function does a cell serve?From bacteria to humans, cells give all living things their structure and functionality. They are regarded as the tiniest form of life by scientists. The cell membrane, the nucleus, and the cytoplasm are the three components that make up a cell. Intricate arrangements of microscopic fibres and hundreds or even thousands of tiny, unique structures known as organelles can be found in the cytoplasm.
The biological machinery that creates the proteins, chemicals, and signals necessary for every process in our body is housed within cells.
The interior of the cell is divided into many organelles that are each surrounded by a distinct membrane. The genetic material required for cell growth and reproduction is stored in the nucleus, a primary organelle. Each cell has a single nucleus and cytoplasmic organelles that are membrane-bound.
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Chondrocytes are to cartilage as osteocytes are to:_____.
a. blood.
b. bone.
c. fat.
d. skin.
Chondrocytes are to cartilage as osteocytes are to bone.
Division of fishesFishes are divided into three major groups. These are:
AgnathaChondrocytes OsteocytesAgnathas are fishes without jaws, such as lampreys and hagfish.
Chondrocytes are cartilaginous fishes. They include sharks and the giant sting ray.
Osteocytes are the bony fishes. They include tilapia and other fishes that have bones as opposed to cartilage.
Thus, Chondrocytes are to cartilage as osteocytes are to bones.
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Alex poured some pond water into three beakers. She then put waterweed into each beaker. She put the beakers in different places.
b. In the school pond there were lots of water lilies with large leaves covering the surface. There were not many plants growing below the surface. Suggest a reason for this.
(a) (i) Beaker A showed best growth of waterweed.
(ii) The change in color was due to absence of light which inhibited photosynthesis.
(b) Not many plants grew below the surface in the pond as the large leaves of water lilies covering the surface blocked the entry of light in the water.
The question is incomplete. The complete question is:-
(a) Alex poured some pond water into three beakers. She then put waterweed into each beaker. She put the beakers in different places.
i) In which beaker did the waterweed grow best? Give the correct letter.
ii) The waterweed in the box changed from dark green to pale yellow. Why did this happen?
(b) In the school pond there were lots of water lilies with large leaves covering the surface. There were not many plants growing below the surface. Suggest a reason for this.
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Molluscs, such as clams, have mosaic cleavage. is it possible for molluscs, or any other animal with mosaic cleavage, to have monozygotic twins? explain.
Moluscs are unable to have monozygotic twins because they have a mosaic cleavage as their fate is predetermined and they don't develop into a new individual.
What are monozygotic twins?Identical twins are referred to described as such because of their identical appearance. However, "monozygotic" is a more precise phrase. Monozygotic twins have nearly identical genetic makeup.
When one sperm fertilizes just one egg, this kind of twin creation starts (oocyte). The cells of the fertilized egg (also known as a zygote) divide and expand into a blastocyst as it moves into the uterus. The blastocyst subsequently divides into two embryos in the case of monozygotic twins.
Monozygotic twins, to put it simply, are produced when a single fertilized egg splits into two. Two infants are then born from two embryos. The word used to describe this procedure is monozygotic ("mono" means one and "zygote" denotes fertilized egg).
Therefore, Moluscs cannot form monozygotic twins.
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The thread-like of the stamen is the (A. anther, B.stigma, C.filament, D.style).
Filaments are the thread like structure of the stamen.
Answer:
Its C.Filament
Explanation:
The stamen has 2 parts. Anthers & Filaments. Anthers are held up by a thread-like part called a filament. so the final answer would be C.
Keisha soaked 6 different kinds
of seeds in water for 24 hours. Then she
planted the seeds in soil at a depth of
1cm. She used the same amount of
water, light, and heat for each kind of
seed.?
She conducted an experiment to see that every plant need same type of enviornment or not.
What are new plants that grow from seeds are called?A seed develops into an embryonic plant called a sporophyte, which then becomes a seedling. The germination of the seed initiates seedling development. The radicle (embryonic root), the hypocotyl (embryonic shoot), and the cotyledons are the three primary components of a typical early seedling (seed leaves).
What is the difference between gymnosperms and angiosperms?Angiosperms are also referred to as flowering plants since they contain seeds inside of their fruit. Gymnosperms, on the other hand, have bare seeds on the surface of their leaves but no flowers or fruits. The seeds of gymnosperms are arranged like cones.
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What organelle consists of a series of connected spaces termed cisternae and is extremely embedded with ribosomes?
The organelle consists of a series of connected spaces termed cisternae and is extremely embedded with ribosomes are endoplasmic reticulum.
The endoplasmic reticulum is an important membrane bound organelle that have functions of protein folding and transportation.
It can be divided into two types- smooth endoplasmic reticulum and rough endoplasmic reticulum. The smooth ER is associated with formation and transportation of lipids.
The rough ER is associated with formation and transportation of proteins and have ribosomes in its surface that gives the rough appearance.
It consist of series of connected space called cisternae which have integral role in packaging and modification of protein and lipids. It is flattened tube like apparatus.
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African lungfish, which are often found in small, stagnant pools of fresh water, produce urea as a nitrogenous waste. what is the advantage of this adaptation?
Urea makes lungfish tissue hypoosmotic to the pool. Small stagnant pools do not provide enough water to dilute the toxic ammonia. Lungfish are freshwater vertebrates of the Dipnoi order. Lungfish are most recognized for preserving ancestral Osteichthyes features, such as the capacity to breathe air.
Ancestral ammonia structures, such as the existence of lobed fins with a well-developed internal skeleton. Lungfish are the tetrapods closest surviving relatives. Only six species of lungfish are known to exist today, and they are found in Africa, South America, and Australia. Lungfish have been found in abundance since the Triassic period, according to the fossil record.
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To cuvier, the differences in fossils from different strata were evidence for __________.
Local catastrophic events, Cuvier was the first to show that. The differences in fossils from different strata were evidence for local catastrophic events such as droughts or floods.
What is strata?Strata, the plural of the Latin term stratum, is another name for rock layers, and stratigraphy is the study of strata. Stratigraphy is the study of the features of stratified rocks, including their relationship to time.
According to the fossil correlation concept, strata that include certain fossils are also the same age since like assemblages of fossils have the same age.
As a result, fossils are highly helpful in correlating, or matching up, rock strata in exposures that are spread apart widely.
Therefore, Local catastrophic event's evidence for differences in fossils from different strata.
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Which of these provides your body with energy? minerals fats oxygen vitamins light
Our body gets energy from fats among the following options.
Our body uses glucose as its main energy source. Other sources of energy contain proteins as well as lipids.
To maintain the body's essential functions, very little in the way of minerals is needed.
In the process of respiration, oxygen is crucial. Energy must be released in order for glucose to also break down.
Vitamins are essential for functioning like fighting infection, wound healing, making our bones strong and regulating hormones.
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Suppose separate gene knockouts do not produce any phenotypic effects but combining the two gene knockouts in one organism shows a difference in phenotype. what is the most likely explanation?
The most likely explanation for this circumstance is Gene redundancy.
What is Gene knockout?Gene knockout may be defined as a type of genetic technique through which a specific gene from living organisms is eliminated or removed. Apart from this, the function of a specific gene is also terminated with this technique.
Gene redundancy may be characterized as an instance through which two or more genes perform an identical function and the inactivation of either one of them has little or no effect on the biological phenotype or pathway.
Therefore, gene redundancy is the most likely explanation for the given circumstance.
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The medical terms for red blood cells, white blood cells, and platelets, in that order are?
Answer:
erythrocytes, leukocytes, and thrombocytes
Explanation:
erythrocytes, leukocytes, and thrombocytes
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How do single-celled decomposers get energy?
They feed on living organisms.
They make their own food.
They break down dead organisms.
They use a process called budding.
Answer: They break down dead organisms
Explanation: Decomposers eat dead organisms for energy.
A mineral scratches a knife blade but does not scratch a streak plate. What is the hardness of the mineral?.
Answer:
A mineral scratches a knife blade but does not scratch a streak plate. The hardness of the mineral between 5.5 and 7.
Explanation:
A material's ability to tolerate localized irreversible and plastic deformation, cutting, scratching, and even twisting is referred to as its hardness. Contrary, wear resistance will increase as hardness increases. Hard materials, in contrast, are challenging to shape-change.
The capacity of one mineral to scrape another mineral is a measure of hardness. A mineralogist from Germany named GeFederick Mohs developed a hardness scale that used a group of 10 reference minerals.Compounds containing calcium as well as magnesium, as well as a number of other metals, contribute to hardness. Temporary hardness, as well as permanent hardness, are indeed the two forms of hardness. Carbonate hardness is another name for temporary hardness.
This kind of hard water is caused by the bicarbonates and carbonates containing both calcium as well as magnesium. This hardness can be eliminated by boiling the water or adding lime to it.
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What are the monomers that
make up DNA?
A. amino acids
B. nucleotides
C. polypeptides
Answer:
I think it is B, nucleotides
How do doctors estimate the extent of burn damage associated with such dangerous fluid loss?
The doctors estimate the extent of burn damage associated with such dangerous fluid loss using the rule of nines.
The rule of nines is a technique a doctor and other emergency unit caregivers used to estimate the degree of burns in the body of a person. This was discovered by Dr. Wallace thus also referred as Wallace rule of nines. The doctor would examine the patient with burns and quickly calculate the degree of burns by adding burns in specific areas of the body.
Here are some of the calculation of the rule the burns in arms including the hands constitutes 9%, front of the body 18%, genitalia 1%, head and neck 9%, legs constitutes 18% and back of the body also makes up for 18%.
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Which term names the process whereby molecules in vesicles are exported out of the cell?.
The process by which molecules in vesicles are exported out of the cell is called exocytosis.
Exocytosis is the process by which secretions of the cell are transported out of the cell into the extracellular fluid. It occurs when the vesicle fuse with the plasma membrane to allow its content to move out of the cell.
Cell membranes are semipermeable membranes that do not allow foreign molecules to pass through them. But vesicles and plasma membranes are both made up of lipids which is the reason why they can fuse. This fusion allows macromolecules to move in and out of the cell.
Neurotransmitters, cell wastes, germs, carbon dioxide, water, etc are some of the content that can move out of the cell through exocytosis. Cells also replenish their inner content by fusion with the vesicles and remove the toxic content from the cell if encountered with one.
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The _____ are receptors in the retina that function especially well in low-light conditions and are everywhere in the retina except for the fovea.
Which type of consumer does photosynthesis: heterotrophs or autotrophs?
Answer:
Explanation:
Another major difference between autotrophs and heterotrophs is that autotrophs have an important pigment called chlorophyll, which enables them to capture the energy of sunlight during photosynthesis, whereas heterotrophs do not.
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Tempo is the rhythm with which the load is moved during a repetition, and affects which metric?
Tempo is the rhythm with which the weight is moved at some point of repetition and influences the intensity. Rhythm is the sample of sound, silence, and emphasis in a song. performed, musical rhythm additionally stipulates how lengthy they may be performed and with what intensity.
Metric modulation is a extrade in pulse rate (tempo) and/or pulse grouping (subdivision) that's derived from a notice cost or grouping heard earlier than the extrade.
Examples of metric modulation can also additionally encompass adjustments in time signature throughout an unchanging tempo, however the idea applies extra in particular to shifts from one time signature/tempo (metre) to another, in which a notice cost from the primary is made equal to a notice cost with inside the second, like a pivot or bridge.
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Stabilization of the unique coiled structure of an alpha helix in a protein is mostly attributed to.
Answer: Hydrogen bond from the carbonyl oxygen of one amino acid to the amino group of second amino acid.
Explanation:
5) which body system does each of the 3 germ layers give rise to?
Answer:
Germ layers - Groups of cells that form 3 distinct regions of the embryo & give rise to specialized cells and organs.
Ectoderm - Epidermis and nervous system
Mesoderm - Heart, kidney, gonads, bones and muscle.
Endoderm - Lungs and digestive system.
Explanation:
Cells in each germ layer differentiate into tissues and embryonic organs. The ectoderm gives rise to the nervous system and the epidermis, among other tissues. The mesoderm gives rise to the muscle cells and connective tissue in the body. The endoderm gives rise to the gut and many internal organs.
What kind of fat wreaks havoc on your metabolic processes and puts you on the path to disease?
Visceral fat that wreaks havoc on your metabolic processes and puts you on the path to disease. It wraps around your abdominal organs deep inside your body.
A healthful quantity of visceral fats withinside the common individual is round 10%. A lady with a waist dimension of extra than 35 inches and a person who has a waist larger than forty inches are in all likelihood to have extra visceral fats. Regular cardio exercising is a extremely good manner to shed visceral fats. It's usually called cardio, and it burns a variety of calories.
In fact, many research have proven that cardio exercising will let you lose visceral fats, even with out dieting.visceral fats appears to be bad diet, especially one it's excessive in brought sugar and easy carbohydrates . That ends in weight benefit it's frequently tough to lose, especially with inside the belly area.
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What was done to overcome the problem of the MSL landing?
Answer:
engineers designed the assembly to cut off the parachute, and use rockets for the final part of the landing sequence
Explanation:
space.com
Answer: "A parachute was used"
To solve the problem, engineers designed the assembly to cut off the parachute, and use rockets for the final part of the landing sequence. About 60 feet (18 m) above the surface, MSL's "sky crane" deployed. The landing assembly dangled the rover below the rockets using a 20-foot (6 m) tether.
Explanation:
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Answer: mass
Explanation:
there is nothing about material to heat. mixture, depends, it has to be a specific situation. heat does contain mass though.
The class of lipid that is derived from fatty acids and that alters blood pressure by its action on arterial smooth muscle cells is?
Prostaglandins are a class of lipid produced from fatty acids that affect arterial smooth muscle cells to change blood pressure.
What function do prostaglandins serve in inflammation?Lipid acetateoids called prostaglandins are produced from arachidonic acid.They both support homeostatic processes and control pathogenic processes, such as the inflammatory reaction.Inflammation, which is accompanied by the signs of redness, swelling, pain, and fever, is brought on by the high amounts of prostaglandins that are created in response to injury or infection. This plays a crucial role in the body's typical healing process.What cause prostaglandins?Prostaglandins cause the muscles in your uterus to contract during your menstruation. These contractions aid in the uterine lining's removal.Prostaglandin levels can make period cramps worse, and hard contractions can narrow the blood arteries surrounding the uterus.
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