why are phospholipids important to an organisms?
About Phospholipid:
Cells are surrounded by a very important type of lipid called phospholipid. Phospholipid consists of hydrophilic (water loving) head and hydrophobic ( water fearing) tail. Phospholipid like to line up and arrange themselves into two parallel layers called phospholipid bilayer.
Importance of phospholipid:
Forms bilayer which provides barrier around the cell and only let in certain molecules like carbondioxide and oxygen necessary for cellular respiration.
During digestive process phospholipid form clusters to help move vitamins, nutrients and fat containing molecules through the body.
They can be used as signal transducer between cells.
They split to form product called second messenger, that can signal for leukocyte to migrate to the site of infection.
Phospholipid that is both structural and functional is sphingomyelin, forms the insulation that protect your nerves and facilitates the conduction of nerve impulses.
Phospholipid in stomach helps in breaking down the fat.
Phospholipid in bile help emulsify fats so they can be carried in blood.
Answer:
They are the main part of biological membranes
Explanation:
what is cross polination
Answer:
Cross-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same species.
What are 2 endocrine diseases?
two examples are:
diabetes mellitus
and
addison's disease
Answer:
Enfermedad de Addison
Enfermedad de Cushing
Explanation:
How would you assess the balance between structure and interaction in your group? (Communication class)
Answer and Explanation:
To assess the balance between structure and interaction, it is necessary to identify whether the conversation is establishing itself in an unbridled way, without focus and objectivity, but it is happening in the most complete mess and chaos, without allowing any of the members of the group to concentrate. This means that the conversation is out of balance and has a lot of interaction and little structure. It is also necessary to assess whether the conversation is taking place in an organized manner, but without allowing interactivity and understanding between group members. This means that the conversation is out of balance, with a lot of structure and little interaction.
When one organism indirectly benefits from another, it is termed as ______
That should be Commensalism
Many factories release carbon dioxide directly into to atmosphere. The carbon dioxide would be considered a(n) __________.
A)
primary pollutant
B)
placer deposit
C)
invasive species
D)
secondary pollutant
E)
scrubber
Answer:
I think it should be primary pollutant.
Explanation:
But what I'm sure of is that too much carbon dioxide released into the air is bad for both the biotic and abiotic factors.
Which of the following are considered gases?
Check all that apply.
A. Helium
B. Air
C. Wood
D. Oxygen
E. Gravity
Answer:
Oxygen, Air And Helium.
A scientific claim is any statement that has been or could have been derived from a scientific study. Examples for scientific claims are “this cereal can reduce your cholesterol” or “this cleaner spray kills ninety-nine point nine percent of germs on contact.” What do all these claims have in common?
A. They are fake
B. They are testable
C. They are true
D. None of these.
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When observing an ECG, you will see many different deflections from baseline known as waves. These deflections represent various electrical events taking place in the heart that give rise to the mechanical events that help move blood. In addition to the waves that can be observed, there are flat lines between waves and successive cardiac cycles called segments that also represent particular electrical events that take place in the heart. Finally, certain combinations of waves and segments, known as intervals, also identify important events recorded by the ECG. Match each of the following events with the correct phase of an ECG. Drag the terms on the left to the appropriate blanks on the right to complete the sentences.
A. P wave
B. ST segment
C. QRS complex
D. PR segment
E. T wave
F. QT Interval
1. Atrial depolarization_____.
2. The ventricles are in their depolarized state____.
3. Total time it takes for the ventricular muscle to depolarize and repolarize____.
4. Ventricular depolarization____.
5. Conduction through the atrioventricular (AV) node____.
6. Ventricular repolarization____.
7. Conduction through the atrioventricular (AV) bundle____.
Answer:
1. Ventricular depolarization −−QRS complex
2. Total time it takes for the ventricular muscle to depolarize and repolarize −−QT interval
3. Atrial depolarization −−P wave
4. Conduction through the atrioventricular (AV) node −−PR segment
5. Ventricular repolarization −−T wave
6. The ventricles are in their depolarized state −−ST segment
7. Conduction through the atrioventricular (AV) bundle −−Q wave
Explanation:
ECG or electrocardiogram is the graphical representation of the heart's rhythm and electrical activity measured by electrical signals. The contraction of the heart shows electrical activity.
There are various deflections shows from baseline and known as specific waves and there are also some flat lines between waves called intervals. This atrial depolarization is called P wave and ventricular repolarization called T wave and the time between ventricular muscles depolarization ( QRS complex) and repolarization is QT interval. Conduction through the atrioventricular (AV) bundle is known as Q wave.
4. On an expedition to Antarctica, scientists have discovered fossils of plants that are found in tropical rainforests. What statement best explains this discovery?
-Tropical plants grow on Antarctica during summer months.
-Antarctica used to be located closer to the equator.
- Fossilized remains were carried by ocean currents.
-The ice age froze the tropical plants in ice. .
Answer:
Antarctica used to be located closer to the equator.
Explanation:
The statement that best explains the discovery of fossils of plants found in tropical rainforests in Antarctica is "Antarctica used to be located closer to the equator."
According to geological history, during the Rodinia age around 1 billion years ago, the Antarctica continent can be found near the position of the equator, thereby making it experience a favorable tropical climate in the past.
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Question 6 (2 points) ✓ Saved
According to the base-pairing rules for DNA, which of the following statements is
not true?
A always pairs with T.
C always pairs with G.
Talways pairs with G.
Answer:
T always pairs with G
Explanation:
According to the complementary base pairing rule as postulated by Chargaff, an Adenine base (A) will always hydrogen pair with a Thymine base while Cytosine base (C) will always hydrogen pair with Guanine base (G) in a DNA molecule.
That is; A - T and G - C
Hence, based on the question, the pairing of Guanine and Thymine is incorrect.
A scientist is researching oil content of seeds from a new plant species named R. tificial. She has determined the narrow sense heritability (h2) is 0.80. She mates plants with an average seed oil content of 32%. If the response to selection (R) was 16%, what is the estimated average oil content of seeds in the entire lab population?
a. 12%
b. 20%
c. 32%
d. 44%
e. 50%
Answer:
The correct answer is option a. 12%
Explanation:
Before answering the question, we need to know a few concepts.
Artificial selection is the selecting practice of a specific group of organisms in a population -that carry the traits of interest- to be the parents of the following generations.
Parental individuals carrying phenotypic values of interest are selected from the whole population. These parents interbreed, and a new generation is produced.
The selection differential, SD, is the difference between the mean value of the trait in the population (X₀) and the mean value of the parents, (Xs). So,
SD = Xs - X₀
Heritability in the strict sense, h², is the genetic component measure to which additive genetic variance contributes. The heritability might be used to determine how the population will respond to the selection done, R.
h² = R/SD
The response to selection (R) refers to the metric value gained from the cross between the selected parents. R can be calculated by multiplying the heritability h², with the selection differential, SD.
R = h²SD
R also equals the difference between the new generation phenotypic value (X₁) and the original population phenotypic value (X₀),
R = X₁ - X₀
---------------------------------------------------------------------------------------------------------
In the exposed example
narrow-sense heritability (h²) is 0.80selected plants with an average seed oil content of 32% the response to selection (R) is 16% = 0.16To get the average oil content of seeds in the entire lab population, we should clear the following equation.
SD = Xs - X₀
But first, to get SD, we need to clear the equation R = h² SD
SD = R/h² = 0.16/0.8 = 0.2
X₀ = Xs - SD = 0.32 - 0.2 = 0.12
The estimated average oil content of seeds in the entire lab population is 12%.
Write on at least 2 applications of temperature measurements in biological sciences
Answer:
farenhite, Celsius and Kelvin
Explanation:
it is most common to use either the kelvin or Celsius scale as a unit of temperature measurement
As climate change is altering the environment, all species must adapt, or they will perish.
what is the MAIN factor needed for this adaptation to occur?
1. large genetic diversity in the population
2. mutations that remove unneeded traits from the individuals
3. more frequent breeding seasons to have more offspring
4. small population size to reduce competition
explain why roots need to use to different methods to absorb water and ions
Answer:
m kemc
Explanation:
kmdefe
The graph below shows the averaged sunspots from 1610 to 2007.
The graph shows sunspot number on the y axis and years 1600, 1650, 1700, 1750, 1800, 1850, 1900, 1950, and 2000 on the x axis. The graph rises and falls in a cyclic order. The number of sunspots observed in 1610 was 40, in 1650 it was 5, in 1700 it was 10, in 1750 it was 90 and the number of sunspots in 1800 was 50. The number of sunspots observed in 1850 was 130 and the number of sunspots in 1900 was 10. The number of sunspots observed in 1950 was 150 and the number of sunspots observed in 2000 was 30.
Based on the graph, which of these conclusions is correct? (2 points)
Group of answer choices
Sunspots spike about every 10 years.
Global climate changes every 5 years.
Earth's temperatures rise every year.
Sunspots increase with time.
Answer: sunspots spike about every 10 years
Explanation:
took the test and got it right
Answer:
Sunspots spike every ten years
Explanation:
Explain how this experiment showed that genetic drift was not a cause of the antibiotic resistance.
Answer:
Antibiotic resistance happens naturally due to genetic mutation through random selection, however, genetic drift occurs on purpose and tests which genes are stronger and should continue to be passed on to future generations.
It should be noted that antibiotics resistance happens naturally due to genetic mutation through random selection.
How do antibiotics resistance occur?It should be noted that antibiotics resistance occur when only some of a prescription is used by an individual.
In this case, genetic drift occurs on purpose and tests that genes are stronger.
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Indoor air pollutants can be dangerous because the air pollutants stay in small space rather than circulating throughout the atmosphere. Which of these choices is an example of an indoor air pollutant?
A. Methane gas
B. Vehicle exhaust
C. Building materials
D. Industrial emissions
Indoor air pollutants can be dangerous because the air pollutants stay in small space rather than circulating throughout the atmosphere. Option C is the correct answer.
What is the methane gas ?It is the gas that is produced by the cow dung and the gas is produced by the various chemical reactions in it.
Building materials pollution can be reduced out by many ways. Here are a few examples:
Low-VOC Paints: Volatile Organic Compounds (VOCs) are chemicals found in many paints, which can emit harmful fumes into the air for years after the paint has dried. Low-VOC paints contain fewer or no harmful chemicals, reducing indoor air pollution and improving air quality.
Air-Purifying Plants: Certain indoor plants, such as peace lilies, spider plants, and Boston ferns, can help remove harmful pollutants from the air. These plants absorb pollutants such as formaldehyde, benzene, and xylene, improving indoor air quality.
Green Roofs: Green roofs are roofs covered in vegetation that can help absorb pollutants from the air, reducing air pollution in urban areas. Green roofs also provide insulation, reducing energy costs, and can help mitigate the urban heat island effect.
Therefore ways like these should be adopted.
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which of these statements would be accurate in their explanation of the formation of new organs and a whole plant from an original leaf
Answer:
where is the statement..........
A pathogenic bacterium has been engulfed by a phagocytic cell as part of the nonspecific (innate) immune response. What would be the best response?
Complete question:
A pathogenic bacterium has been engulfed by a phagocytic cell as part of the innate immune response. Which of the following illustrations best represents the response? Illustrations in the attached files.
Answer:
Graph C best represents the response
Explanation:
Phagocytosis occurs when the phagocyte incorporates a new solid substance, such as a bacteria. Phagocytosis is a function of specialized immunological system cells. They are capable of removing strange bodies from the immune system as a first natural defense line. The phagocyte membrane invaginates and surrounds the strange body, which is traped and included in an endocytic vesicle called a phagosome. This vesicle often fusses a lysosome which releases its enzymes into the phagosome. These enzymes are in charge of digesting or destroying the strange content. After that, the produced wastes are removed from the cell.
What is the atomic number of an element that has 33 protons and 30 neutrons?
Answer:
33
Explanation:
because proton number is always equal to atomic number
Atomic number =33
In a neutral atom, the number of protons is equals to the atomic number which is also equal to the number of electrons.The number of neutrons can be identified by differentiating between atomic number and mass number of a given element.Given:
Number of protons=33
Number of neutrons=30
Thus, the atomic number will be 33 since it is equal to the number of protons. The element having atomic number 33 is Arsenic.
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What is the bottom layer in the soil?
topsoil
parent rock
humus
subsoil
Answer:
my answer is: subsoil
Explanation:
Answer:
Parent rock, also now as bedrock
Explanation:
what muscle moves the first toe
Answer:
Abductor hallucis
Explanation:
Abductor hallucis: A muscle on the inner side of the foot that runs from the big toe to the heel, it pulls the big toe, or hallux, away from the body. Tibialis anterior: This muscle runs from the tibia to the first toe, and helps make walking possible by flexing the foot upward and turning it inward.
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What does an H-R diagram relate a star's temperature to? a. the amount of heat created by the star c. the type of star b. the elements the star contains d. the star's absolute magnitude Please select the best answer from the choices provided A B C D
Answer: A. The amount of heat created by the star.
Explanation: The Hertzsprung–Russell diagram, abbreviated as H–R diagram, HR diagram or HRD, is a scatter plot of stars showing the relationship between the stars' absolute magnitudes or luminosities versus their stellar classifications or effective temperatures. Your Welcome
The epicenter of an earthquake is located 6,500 kilometers away from a seismic station. If the
first S-wave arrived at this seismic station at 1:30 p.m., at what time did the first P-wave arrive?
A)1:20 p.m.
B)1:22 p.m.
C)1:38 p.m.
D)1:40 p.m.
Explanation:
the epicenter of an earthquake is located 6500 kilometers aways from a seismic station .
What is the answer of the question?
Answer:
A. Amino Acid, protein, gene.
Explanation:
Genomics refers to the scientific study of genes (DNA) found in living organisms such as humans and animals.
A gene can be defined as a complete set of hereditary instructions that is typically found in the deoxyribonucleic acid (DNA).
A nucleotide can be defined as an organic molecule which forms the building block of nucleic acid such as deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
Simply stated, a sequence of biomolecules which are responsible for coded genetic instructions in all living organisms is known as nucleotides.
Basically, nucleotide comprises of the following parts;
1. Nitrogenous base: this includes adenine (A), thymine (T), guanine (G), and cytosine (C) which are mainly found in the DNA while adenine (A), guanine (G), uracil (U) and cytosine (C) are found in the RNA.
2. A phosphate group.
3. A penrose sugar: it is either deoxyribose in DNA or ribose in RNA.
Furthermore, the two parts or chemical components of a nucleotide which do not change throughout the structure of DNA are;
I. Five-Carbon Sugar also known as deoxyribose and it has hydrogen on its second carbon.
II. Phosphate: this is the structural backbone that provides support to DNA.
Additionally, the proteins which are mainly synthesized based on the genetic instruction codes in deoxyribonucleic acid (DNA) determines the trait of living organisms.
Genome editing can be defined as a high-tech process which avail scientists the opportunity or ability to remove (delete), replace and insert Deoxyribonucleic Acid (DNA) sequence in a living organism such as bacterias, animals, plants etc in order to correct a genetic disorder and to improve on their physical and chemical conditions.
Hence, when you remove a nucleotide from a gene, the order of nucleotides shifts and as such resulting in new amino acid being coded for. These new amino acid will combine to form a different protein than what the gene was originally coded for.
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Earth has mountains and valleys. In addition, Earth has a moderate temperature, water, and an atmosphere. Which of the following planets is MOST similar to Earth based on these criteria?
Group of answer choices
Mercury
Jupiter
Mars
Venus
Answer:
Mars
Explanation:
because people are researching if we could live there so im 90% sure
Earth has mountains and valleys. In addition, Earth has a moderate temperature, water, and an atmosphere. Mars planets is most similar to Earth based on these criteria.
What are the special features of mars?Mars is the third-largest and most massive terrestrial object in the Solar System and the fourth planet from the Sun. Mars has a core made of iron and nickel, a crust mostly made of elements similar to Earth's, and a thin atmosphere.
Mars is often referred to as the "Red Planet." Rusty iron in the ground is what gives it its red color. Mars has seasons, canyons, volcanoes, polar ice caps, and weather like Earth.
Without a functioning dynamo and a defensive attractive field, the vast majority of Mars' water was impacted from its air by sun oriented radiation quite a while in the past, leaving us with an exceptionally dead world.
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... What is the relationship between sugar and carbon dioxide production in cellular respiration?
Answer:
"Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process."