Answer:
The geographically isolated population will acquire genetic differences that eventually will lead to its speciation
Explanation:
Geographic isolation is a biological process produced by the physical separation between organisms of the same species, which may be caused by different types of geographical barriers such as, among others, mountains, earthquakes, rivers, etc. Geographic Isolation produces genetic differences between the separated groups. Over time, these genetic differences will lead to the reproductive isolation of the new population, thereby leading to the formation of a new species in the course of evolution, in a mechanism referred to as speciation.
Describe under what conditions you might expect your cells to undergo anaerobic respiration. Be specific as to why these conditions would prevent normal cellular respiration to proceed. What product is produced under anaerobic conditions and is it harmful?
Answer:
Explanation:
Cells start undergoing anaerobic respiration when energy requirement is high and there is not sufficient availability of oxygen to produce required energy .
For example , when we we run fast , energy requirement by muscle cell is high but available oxygen level is not sufficient so cells start anaerobic respiration which produces lactic acid and this product creates tire-ness.
For normal respiration , oxygen is required . If there is lack of oxygen , aerobic respiration is not possible .
In yeast cells , alcohol is produced by anaerobic respiration. Alcohol is not harmful . In muscle cells , lactic acid is produced which is harmful .
Why has society changed its view on smoking since 1960
Answer:
Ever since scientists discovered that smoking is bad for the lungs and the body in general, over time there became less and less people who do it. Even though the scientists are right, people still make the wrong choice and start smoking. Most people agree on the fact that smoking is bad for your health.
Which describes one characteristic of both El Niño and La Niña?
Both are causes of long-term climate change.
Both create warmer water.
Both occur in the Pacific Ocean.
Both are causes of hurricane activity.
Answer:
Both occur in the Pacific Ocean.
Explanation:
El Niño and La Niña are opposite phases of a natural climate pattern across the tropical Pacific Ocean that swings back and forth every 3-7 years on average
Answer:c
Explanation:
Place the steps of biofilm formation in the correct order: 1. Quorum sensing and the establishment of the extracellular matrix commences as microbes attach more stably. 2. Surface (substratum) is preconditioned by environmental molecules. 3. Biofilm matures and some microorganisms escape to the planktonic state. 4. Microbes attach and detach from the preconditioned surface.
Answer:Step order:
2. The surface (substrate) is preconditioned by environmental molecules.
4.Microbes bind and detach from the preconditioned surface.
1.Quorum detection and extracellular matrix establishment begins as microbes bind more stably.
3. The mature biofilm and some microorganisms escape the planktonic state.
Explanation:
The biofilm is a highly complex structure where many microorganisms coexist, compete, reproduce, feed, within a micro-system with many ideal conditions for each microorganism that is housed in it.
The biofilm is resistant to non-selective antimicrobials, that is, to disinfectants such as sodium hypochlorite, chlorhexidine, among others.
Evidence was also presented that they are resistant to selective antimicrobials such as antibiotics, that is why they have great virulence factors or potential to trigger pathology.
The solution to destroy a biofilm is mechanical sweeping, with brushing as it happens on our teeth or even with the catheter cleaning brushes that are used (in addition to the sterilization methods).
This biofilm presents separate colonies in its interim with a fluid that it travels transmitting signals, food, toxins, resistant factors between these different types of microorganisms. This fluid and this communication between them is called quorum sensing and not all microorganisms tolerate it.
Many microorganisms compete with each other for the medium, an example is streptococcus mutating in the dental biofilm, which generates an acidic medium by metabolizing carbohydrates within the biofilm, thus generating that those bacteria that live in neutral or alkaline ph cannot reproduce and die.
The biofilm can be contained by bacteria, viruses, fungi and even parasites, but what they all have in common is that they have the ability to reproduce on an inert surface such as catheters, dental surfaces, silicone hoses.
dromedary, camel, alpaca, vicuña, guanaco, llama, which species are most similar to each other? what is this about?
Answer:
Alpaca and llama are the most similar
Explanation:
An alpaca is a mix of a donkey and llama so alpaca and llama are the most similar.
advantages of cutting crops with sickle?
Answer:
The advantages of cutting crops with a sickle is that it's very environmental friendly. Sickle doesn't produce harmful chemicals like nitrate and biogas that can cause pollution to the environment or to the crops. However, sickle cutting is a very tremendous work.
Explanation:
match the boinomial of some common level local organisams from a two coulmn list on the basis of generic and specific name
Explanation:
human being : Homo sapiens
dog: Canis familiaris
house fly: Musca domesticated
domestic cat: Felis domesticus
maize: Zea Mays
Bean: Phaseolus vulgaris
lion : Panthera leo
honey bee: Apis mellifera
Which is an example of an idiosyncratic reaction?
a. Nausea after taking an antibiotic agent
b. Excitement and agitation after taking a sedative
c. Increased clotting time after taking heparin
d. Sedation after taking a sleeping pill
Answer ; A
Idiosyncratic reactions are unpredictable and not explained by the pharmacologic properties of the drug. An example is the individual with infectious mononucleosis who develops a rash when given ampicillin.
Definition. Idiosyncratic drug reactions are adverse drug reactions that do not occur in most patients at any dose and do not involve the known pharmacological properties of the drug.
hope this helpWhich describes the main purpose of RNA polymerase during transcription?
A. RNA polymerase is guided to the coding region.
B. RNA polymerase produces mRNA from DNA.
C. RNA polymerase pulls apart the double helix.
D. RNA polymerase reaches the end of the gene.
Explanation:
RNA polymerase reaches the end of a gene. Which describes the main purpose of RNA polymerase during transcription? ... RNA polymerase reaches the end of the gene. RNA polymerase produces mRNA from DNA
Answer:
it's D
Explanation:
The single most important feature to consider when purchasing a scuba regulator is: How well it performs in controlled laboratory testing. A second-stage adjustment knob to ensure ease of breathing. The availability of regular, professional maintenance. Both the first and second answers are correct.
Answer:
A diving regulator is a pressure regulator that reduces the pressure of gas in the tank and deliver it to the diver so that he/she can breathe easily. It must pass the controlled laboratory testing and must have a second adjustment knob to ensure ease of breathing. Modern regulators are precision made and designed to work under demanding conditions. 1st stage and 2nd stage, diaphragm and piston, exhaust valve and purge button are types of diving regulators.
A scuba regulator is a pressure regulator that lowers the gas pressure in the cylinder and supplies it to the diver, making it easier for the diver to breathe. A second adjustment knob is needed to pass controlled laboratory tests and facilitate breathing. Modern regulators are precisely designed and designed for use in harsh conditions. The first and second stages, diaphragm and piston, exhaust valve, and flush button are a type of regulators.
What does the regulator do?The regulator is an excellent invention that provides exactly the air needed for breathing from the scuba tank. The regulator is the focus of the scuba gear and connects the scuba tank to BC, scuba pressure gauge (SPG), alternative air sources, and many other devices.
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The theater sold 562 tickets to the concert at a price of $6 each. Use the distributive property to find the product of 6 × 562. 6(562) = 6(500) + (60)(2) = 3,120
Answer:
1,897,087=1,900,207.2=3,120 (the equasion you gave when distributed)
Answer to the question(Money made): ($)3,372
Explanation:
solved it out by multiplying
Answer:
Answer to the question(Money made): ($)3,372
Explanation:
Consider this plant cell. The organelles in a plant cell are labeled. Part E is a complex of vesicles and folded membranes within the cytoplasm. Which organelle is labeled E? Golgi apparatus chloroplast ribosome nucleus
Answer:
Golgi apparatus
Explanation:
The organelle labelled E is the Golgi apparatus
The organelles found in the cytoplasm are called cytoplasmic organelles
What is cell?Cell is defined as the simplest, basic and structural unit of life.
There are two types of organisms based on the number of cells they have; namely:
Unicellular organismsMulticellular organismsUnicellular organisms are organisms possessing only one cellMulticellular organisms are organisms which has two or more cellsLearn more about cells:
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Which statement best describes genetic material?
A. A single gene contains hundreds of proteins that have the code for
making more genes.
B. Chromosomes are sections of DNA that have the codes for amino
acids
C. Genes are made up of chromosomes that are packaged tightly in
DNA
D. A single gene has the code for the series of amino acids that
makes a protein.
Answer:
D. A single gene has the code for the series of amino acids that
makes a protein.
Explanation:
Genes are functional units of heredity and they are made of DNA that is packaged in components called chromosomes.
Each gene carry a genetic code which codes for the series of amino acid creating a specific protein. In general, the genetic code specifies 20 standard amino acids that form proteins.
Hence, the best statement describes genetic material is "D" and other given options are incorrect.
The countercurrent multiplier is a system by which the:______.
a. nephron loop multiplies the concentration of salts in the interstitial fluid of the kidney medulla.
b. nephron loop dilutes the concentration of solutes in the tubular fluid at its hairpin turn.
c. vasa recta secretes multiple amounts of metabolic wastes against their concentration gradient.
d. vasa recta becomes more concentrated with nitrogenous wastes than the urine.
Answer: Option A.
nephron loop multiplies the concentration of salts in the interstitial fluid of the kidney medulla.
Explanation:
countercurrent multiplier is a system that utilize energy that create osmotic gradients and enable reabsorption of water thereby increase concentration of urine. The countercurrent multiplier uses electrolyte pumps there by making the nephron loop increase the concentration of salts in the interstitial fluid of the kidney medulla because it allows the nephron to reabsorb alot of water and and increase the concentration of urine for excretion while at the same time using as little energy as possible.
Where do I can find a white deer in far cry primal
Carbonic anhydrase inhibitors cause less movement of carbonic acid toward carbon dioxide production and are used as a prophylactic treatment of altitude sickness. Altitude sickness occurs when a hiker ascends to altitudes where the density of oxygen is low. How does this decrease the symptoms of high altitude sickness?
A) The excess hydrogen ions are excreted in the urine and the resulting loss of acidity increases respiration rate.
B) The excess bicarbonate ions are excreted in the urine and the resulting loss of blood pressure increases respiration rate.
C) The excess bicarbonate ions are excreted in the urine and the resulting increase in blood acidity leads to an increase in ventilation.
D) The excess bicarbonate ions in the blood increase the affinity of hemoglobin for oxygen.
Answer:
The excess bicarbonate ions are excreted in the urine and the resulting increase in blood acidity leads to an increase in ventilation.
Explanation:
A researcher interested in the disappearance of fallen leaves in a deciduous forest carried out a field experiment that lasted nearly a year. She collected all the leaves from 100 plots scattered throughout the forest. She measured the amount of leaves present in November, May and August. The percentages reflect the number of leaves found, using the November values as 100 percent.
Answer:
Elm: 50 %; 1 %
Hazel: 69 %; 4 %
Explanation:
Assume the table looked like this.
[tex]\begin{array}{crrr}\textbf{Month} & \textbf{Ash} & \textbf{Elm} &\textbf{Hazel}\\\text{Nov} &\text{4271 g}& \text{3481 g} & \text{1723 g}\\ & 100\, \% & 100\, \%&100\, \%\\\text{May} & \text{2431 g} & \text{1739 g} & \text{501 g}\\& 100\, \% & x \, \% &z \, \%\\ \text{Aug} & \text{1376 g} &\text{35 g} & \text{62 g}\\& 100\, \% & y \, \% & w \, \%\\\end{array}[/tex]
To get the percentages for each species for May and August, you divide that month's mass by the November mass and multiply by 100.
[tex]x = \dfrac{\text{1739 g}}{\text{3481 g}} \times 100 \, \% =50 \,\%\\\\y = \dfrac{\text{35 g}}{\text{3481 g}} \times 100 \, \% = 1 \,\%\\\\z = \dfrac{\text{501 g}}{\text{1723 g}} \times 100 \, \% = 69 \,\%\\\\w = \dfrac{\text{62 g}}{\text{1723 g}} \times 100 \, \% = 4 \,\%\\\\[/tex]
The figure below shows the graphs for ash and elm.
In an organism, X, it is found to be impossible to generate loss-of-function mutants for most genes. There is an alternative method of introducing random mutations that can later be screened for the gene(s) in question. This can be accomplished by using insertions due to what genetic entities?
Answer:
Transposable elements (TE)
Explanation:
A transposon, also known as 'jumping genes', is a particular sequence of DNA that can relocate inside of the genome. It affects the genetic identity and can be made use of to either reverse a mutation or create one - it duplicates that genetic sequence. Retrotransposons is a class of TE found in viruses.
Rank the following substances based on how quickly sound will travel through them from fastest to slowest. Then explain your ranking, based on the properties of sound wave
•air
•water
•rock
Answer:
Rock
Water
Air
Explanation:
Sound can travel through rock the fastest since the molecules are packed the tightest and the second tightest is water than air
The protein RDA for adults is 0.8 grams per kilogram of healthy body weight per day. A woman weighs 60 kg and her weight falls within the normal range for her height. How much protein (in grams) should she consume in one day?
Answer:
Amount of protein required = 48 gram
Explanation:
Given:
Adult required = 0.8 gram protein per kg
Weight of women = 60 Kg
Find:
Amount of protein required
Computation:
⇒ Amount of protein required = Total body weight × 0.8 gram protein
⇒ Amount of protein required = 60 × 0.8
⇒ Amount of protein required = 48 gram
How many core biosafety work practices (or do's and don'ts) are there, according to the National Research Council’s book entitled, Prudent Practices for the Handling and Disposal of Infectious Materials?
Answer:
seven
Explanation:
There are seven biosafety practices which should be followed during the Handling and Disposal of Infectious Materials. These biosafety practices were made by the scientists in order to reduce the chances of contamination of worker who deals with the handling and disposal of Infectious or toxic materials. If these seven biosafety practices were not followed by the workers so there is high chances of infection which leads to their death.
how can we improve crop production
Answer:
Improve Soil, Increase Crop Yield to increase crop yield, start from the ground up. Testing soils. Plant Early, Plant Effectively. Practice Seasonal Soil Rotation
Answer: Plant Early,Practice Seasonal Soil Rotation,
Always Scout Your Fields......and soo one
Explanation: hope this helpes :)
what is the function of Krebs Cycle please help!!!!!
Explanation:
it is the final process of oxidisation for food stuff
Which characteristic describes the whale but not its food source, the phytoplankton? The whale is heterotrophic. The whale has cell walls. The whale is unicellular. The whale is a prokaryote.
Answer:
A. The whale is heterotrophic.
Explanation:
The whale is an aquatic animal that is heterotrophic in nature. Heterotrophic means that this animal lacks the ability to manufacture its own food because it depends on plants and animals as a source of food energy. Since the Whale is dependent on phytoplankton for food, this means that it is not a producer of food and as such is heterotrophic.
Phytoplankton is a marine alga. Algaes are prokaryotes and this means that they are unicellular animals without a membrane-bound nucleus. The Cell wall is mostly a characteristic of plants. So the first option is a perfect description of the whale and not its food source which is the phytoplankton.
Answer:
ExplanationThe whale is heterotripic
Which phrase describes a feature of an earthquake’s epicenter?
starting point of an earthquake
place around the center of an earthquake
region directly above the focus
point about 100 kilometers deep in the lithosphere
Answer:
It is answer c
Explanation:
i know this because The epicenter is directly above the earthquake's hypocenter (also called the focus)
The phrase which describes a feature of an earthquake’s epicenter is: C. region directly above the focus.
An earthquake can be defined as a sudden, natural shaking of the ground, as a result of movements within the Earth's crust and upper mantle (lithosphere) that typically creates seismic waves.
An epicenter is the point on the surface of planet Earth, which is perpendicular to the hypocenter (focus) and it indicates where the seismic waves from an earthquake are most intense.
On a map, an earthquake’s epicenter is located at the point where the three (3) circles intersect because earthquake are generally shallow.
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Consider this animal cell.
The organelles in an animal cell are labeled. Part F is a network of hollow tubes, flattened sheets, and round sacs.
What is the function of the organelles that are labeled F?
to temporarily store water, waste products, food, and other cellular material
to produce proteins for the cell
to move proteins and other substances through the cell
to contain digestive enzymes that break down waste material and debris in the cell
If im not wrong, its golgi body.
Golgy body giving enzyme to append protein to glycosaminoglycans,
it can store water,
produce protein and transport it or stored in the vesicles,
it also have haltened sacs.
Im sorry if im wrong
Answer: c, the rough and smooth ER
Explanation:
moves things through the cell
When you eat, your blood glucose level rises. Soon after, it drops as the glucose is stored. Where does it go?
Explanation:
About to six hours after you eat the glucose levels in your blood decrease triggering your pancreas to produce glucagon. This hormone signals. your liver and muscle cells to change the stored glycogen back into glucose.
What might an elevated ST segment of an ECG mean?
A. All of these
B. Cardiovascular disease
C. Impending heart attack
D. Hypertrophy
Answer:
C. Impending heart attack
The elevated ST segment of an ECG mean an impending heart attack. The correct option is C.
What is an EGC?An electrocardiogram (ECG) is a simple test that can be utilized to check the rhythm and electrical activity of your heart. Sensors attached to the skin diagnose the electrical signals generated by your heart every time it beats.
ST-segment elevation generally signals that the involved coronary artery is completely blocked and that the heart muscle is dying.
Thus, the correct option is C.
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a) Name the structures that: i) Carry water and mineral salts to the leaf ii) Prevents too much water loss from the upper surface of the leaf iii) Opens to allow gases to pass into and out of the leaf iv) Is the site for most of the photosynthesis taking place v) Is the layer where light is able to pass through directly b) How does a leaf protect itself from unwanted intruders like bacteria from getting in and stopping important reactants from going out? PLEASE ANSWERR
Answer:
a) i) Xylem
ii) Upper epidermis
iii) Stoma
iv) Chroloplast
v) Palisade cell layer
b) By a waxy layer on the cuticle of the leaf
Explanation:
The plant's leaves have a large surface area that is capable of absorbing sunlight. The plant's waxy layer in the surface of the leaf protects it from the loss of water, as well as of diseases caused by the entry of microorganisms. The palisade cell's surface is a single layer of cells underneath the upper epidermis that is adapted to absorb light energy.
The waxy layer is a primary physical barrier composed of insoluble polymers and lipids whose function is to protect the leaves against the entry of harmful organisms including virus, bacteria and fungus. Moreover, the plant's waxy cuticle is also a barrier that prevents the loss of water and solutes.
Answer:
luisvaschetto is right!!!!!!! i got a 100.
What are the functions of SER
Answere1SER helps in the manufacture of fat molecules or lipids
2It plays a critical role in detoxifying many poisons and drugs in the liver
Answer:
SER (Smooth Endoplasmic Reticulum) produces and exports lipids and protein, and SER functions for detoxication. It is concerned with carrying out certain metabolic processes.