Answer:Water molecules stay close to each other through cohesion, the collective action of hydrogen bonds between water molecules. Cohesion helps plants draw water upwards from the root through the stem's transport tubes (xylem) to the leaf. This transport occurs even in large trees and against gravity. Transpiration, evaporation of water from plant leaves, creates a tension on water molecules being pulled up from the stem and roots.
Explanation:
Beetles come in a wide variety of shapes, feeding habits, and live in a variety of habitats. Classifying beetles can be quite difficult given their sheer numbers. Within the Ground Beetles in Genus Notiophilus alone there are 15 different species. If you were to choose a group of organisms the LEAST related to individuals in this genus, you would look in which of the following taxa? In the same Kingdom, but not the same Phylum In the same Domain, but not the same Kingdom In the same Class, but not the same Order In the same Family, but not the same Genus
Answer:
In the same Domain, but not the same Kingdom
Explanation:
The taxonomic classification is organized in the following taxes, following the order of greatest kinship to the order of lowest biological kinship: species, genus, family, order, class, phylum, kingdom and domain. Therefore, if you want to study organisms that are less genetically similar to the organisms that make up the genus Notiophilus, you should observe the individuals that make up the domain where this genus is inserted, since they have very little genetic and morphological similarities.
g A graduate student ran a gel filtration column and determined that a specific protein has a molecular mass of 400 kDa. The student then ran an SDS-PAGE gel of the protein under non-reducing conditions and found the presence of three bands: 180, 160, and 60 kDa. The student then ran SDS-PAGE under reducing conditions and still found three bands but the sizes were: 160, 90, and 60 kDa. Explain (1) the subunit composition of the protein, (2) the number of unique and identical polypeptides present in a single protein, (3) and why the discrepancies occur in the molecular weights.
Answer:
1) The protein is a tetramer, i.e., it has 4 subunits
2) The protein has two identical subunits with a molecular weight of 90 kDa
3) Because this protein contains two subunits with identical molecular weight (90 + 90= 180)
Explanation:
160 kDa + 90 kDa + 60 kDa = 310 kDa >>
Subunit X = 400 kDa - 310 kDa = 90 kDa >> Two subunits with a weight of 90 kDa likely linked by disulfide bonds (i.e., non-reducing conditions can break all bonds except sulfide interactions)
Jerome solves a problem using the law of conservation of momentum. What should Jerome always keep constant for each object after the objects collide and bounce apart?
velocity
mass
momentum
direction
Answer:
mass
Explanation:
The law of conservation of momentum states that within an isolated system, one of the quantities must be conserved no matter what happens. In the case of the question above, when two objects collide and separate from each other. Because of the collision and the removal of objects, it is not possible to keep the direction and speed that they assume constant. However, the mass of the bodies will be maintained at all times, before, during and after the collision; steadily.
The only parameter Jerome should keep constant is mass of the object.
Law of conservation of momentumThe law of conservation of momentum states that, the total momentum of an isolated system is always constant.
The formula for law of conservation of momentum is written as;
m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂
where;
m is mass u is initial velocityv is final velocityThus, the only parameter Jerome should keep constant is mass of the object.
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Corals form symbiotic relationships with microscopic photosynthetic algae that live in their cells and give the corals their distinct colors. The relationship is an example of mutualism, in which both species benefit. Predict how each organism in this relationship could benefit the other.
Answer and Explanation:
Corals are translucid or white, but they look brightly colored because they host symbionts with colorful photosynthetic pigments . They can host different organisms that live on and among them, giving place to an amazing ecosystem.
One of these organisms is the photosynthetic unicellular microalgae, called zooxanteles, that are colorful and provide nutrients to the coral.
Corals provide shelter and protection to the algae, while algae provide nitrogenated nutrients, sugars, and color to the corals. Algae can store nitrogen in their tissues as nitrogen-rich crystals, which are constantly provided to corals.
This symbiotic relation allows corals to grow in different environments that are poor in nitrogen or other nutrients, such as the tropical clear waters.
When changes in radiation, temperature, or salinity in water occur, corals react to these changes losing these algae and becoming translucid again.
create a flowchart of the negative feedback mechanism that controls your body’s temperature
Answer:b) Body temperature is regulated by negative feedback. The stimulus is when the body temperature exceeds 37 degrees Celsius, the sensors are the nerve cells with endings in the skin and brain, the control is the temperature regulatory center in the brain, and the effector is the sweat glands throughout the body.In negative feedback, the body works to correct a deviation from a set point, it tries to get back to normal. ... In positive feedback, the body changes from the normal point and amplifies it. Examples include blood clot formation, lactation, contractions during childbirth, and fever.In positive feedback mechanisms, the response to a stimulus does not stop or reverse it but instead keeps the sequence of events going up. ... A positive feedback mechanism can be harmful, as in case of fever that causes metabolic changes pushing it to be higher.xamples of processes that utilise negative feedback loops include homeostatic systems, such as:
Thermoregulation (if body temperature changes, mechanisms are induced to restore normal levels)
Blood sugar regulation (insulin lowers blood glucose when levels are high ; glucagon raises blood glucose when levels are low)
Explanation:
What role do white blood cells preform in a human body?
A. Clotting blood
B. Conducting electrical impulses
C. Secreting enzymes
D. Carrying oxygen
Answer:
A-Clotting blood
Explanation:
There is a theory that gravity Eould pull galaxies back together, causing a reverse big bang Which observation makes this theory less likely than the idea that the universe may continue to expand? Background radiation is present, Galaxies exist outside of the Milky Way. The expansion of the universe is accelerating Gas giants form farther from the Sun, where temperatures are cooler.
Answer:
Explanation:
The correct answer is derived from Hubble's observation that galaxies that are further away from the sun are moving away from our sun at a rate that is greater than those that are close by.
This observation suggests that our universe is expanding.
Now which choice best fits this observation? I don't know that this answer is correct, but it might be the closest choice. Galaxies exist outside the Milky Way, but that answer does not take into account their motion which is a necessary part of the theory.
Answer: The expansion of the universe is accelerating
Explanation: Edge test
Which of the following can digest an enzyme?
a. Proteases
b. Kinases
c. Lipases
d. Endonucleases
Answer:
Endonuclease can digest an enzyme.
Enzymes can be digested by option a. Proteases among the given options as it is an enzyme that can digest proteins and peptides.
Enzymes are proteins that can catalyze biochemical reactions by accelerating the reactions. Proteins are made up of polypeptide chains.
Protease is an enzyme that can cleave or degrade the peptide bonds present in the enzyme that helps in the digestion of the enzymes.Kinases phosphorylate other molecules The endonuclease degrades DNA into fragments. Lipases are the enzyme that that digests the lipid moleculesThus, the correct answer is option a. Proteases.
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Describe how replacing diesel/petrol fueled vehicle to electric-operated vehicles may change the environment
Answer:
By reducing the amount of carbon dioxide emissions contributing to global warming
Explanation:
Global warming is an arising problem caused by the emission of gases called GREENHOUSE GASES into the Earth's atmosphere. The greenhouse gases include Carbon dioxide, methane etc.
Carbon dioxide as the principal cause of global warming is emitted when fossil fuels like petroleum products like diesel or petrol are burned. Therefore, the use of automobiles like cars releases CO2 into the atmosphere. Therefore, replacing diesel/petrol fueled vehicle to electric-operated vehicles may change the environment by reducing the amount of greenhouse gases (CO2) emitted into the atmosphere, ultimately helping to reduce global warming.
DOES ANYONE KNOW THE ANSWER??? picture above only if you know it
Answer:
I believe it's the first option
In amphibians, air is forced into the lungs, not drawn into the lungs; this is called:___________.
Answer:
The options are
A) negative pressure breathing
B) forced air breathing
C) positive pressure breathing
D) terrestrial breathing
E) none of the above
The answer is C) positive pressure breathing
Explanation:
Mammals such as humans and goats possess diaphragms . The muscles of the diaphragm create a type of pressure which helps in pulling air into the lungs. This process is called Negative pressure breathing.
Amphibians lack diaphragms so they lack pressure to draw air into the lungs , it is forced into the lungs instead in a process known as positive pressure breathing.
An RNA molecule is made up of long chains of nucleotides. An RNA nucleotide consists of a _______________, a
_______________, and a nitrogenous base.
The comparatively brief, single-stranded adenine, cytosine, guanine, and uracil-based mRNA molecules are bound together by a sugar phosphate backbone. Two thirds RNA and one third protein make up the enormous and intricate ribosome.
What are the composition of RNA molecule?Ribonucleic acid is a substance that is present in the majority of living things, including viruses (RNA). The building blocks of DNA are nucleotides, which are ribose sugars bound to nitrogenous bases and phosphate groups.Adenine, guanine, uracil, and cytosine are among the nitrogenous bases.
Similar to our prior findings for bacteria, we discover that each gene typically only has a small number of mRNA molecules present in the cell at any given time.
Therefore, An RNA molecule is made up of long chains of nucleotides. An RNA nucleotide consists of a (five carbon ribose sugar) , a( phosphate molecule ) and a nitrogenous base.
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The three atoms of one water molecule are held together internally by:
A: Weak hydrogen bonds
B: Weak ionic bonds
C: Strong ionic bonds
D: Strong covalent bonds
A person with type AB blood has __________ RBC antigen(s).
A. no.
B. anti-A and anti-B
C. anti-A
D. anti-B
E. A and B.
Answer:
it is B
Explanation:
it is Anti-A Individuals with type AB blood have both A and B antigens,
A person with type AB blood has anti-A and anti-B RBC antigens. So, the correct option is (B).
What is ABO Blood Groupings?A system which is used to group human blood into different types that is based on the presence or absence of certain markers on the surface of red blood cells. The four main blood types are A, B, O and AB. The ABO blood group system is used to match the blood types of the donor and the person receiving the transfusion.
People with O blood group can donate blood to anyone and are called universal donors. People with blood type AB can accept blood from all donors and are called universal recipients. People with type A or B can receive matching blood or type O blood.Blood group A has A antigens on red blood cells, with anti-B antibodies in the plasma.
Blood group B has B antigens with anti-A antibodies in the plasma
Blood group O has no antigens, but has both anti-A and anti-B antibodies in the plasma
Blood group AB has both A and B antigens, but no antibodies
Thus, a person with type AB blood has anti-A and anti-B RBC antigens. So, the correct option is (B).
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what is the name of a process that produces use to make their own food
Answer:
photosynthesis
Explanation:
I'm not sure you're being clear but I think this is the answer.
Most autotrophs use a process called photosynthesis to make their food. In photosynthesis, autotrophs use energy from the sun to convert water from the soil and carbon dioxide from the air into a nutrient called glucose.
Which of the following things is a product of science?
A. Singing
B. Modern bananas
C. Astrology
D. Basket weaving
Answer:
b. modern bananas
Explanation:
Science is a discipline which is based upon the study of the natural world on the basis of the facts and data obtain after the experimental trials and associated observations. Fields of scientific study includes biology, physics and chemistry.
Modern bananas is the product of science as it can be composed or constructed by using the knowledge of science and associated technology.
B. Modern bananas are a product of science.
Are modern bananas man-made?The modern-day, not unusual banana is a person-made hybrid of the wild Musa acuminata and Musa balbisiana banana species. Musa acuminata has a fleshy inside, however, it has a very unsightly flavor. Musa balbisiana has a nice-tasting inside but consists of too many seeds. each banana is naturally crossbred in the forests of South Asia.
Much like human beings, bananas are dealing with a pandemic. Nearly all the bananas bought globally are just one type known as the Cavendish, that's at risk of a deadly fungus called Tropical Race 4, or Panama disease. If not stopped, Tropical Race 4 ought to wipe out the $25 billion banana enterprise.
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During the cell cycle, the cell must pass through several checkpoints that confirm that the cell is ready to progress to the next phase of the cycle. If the requirements of one phase have not been met, the cell cannot proceed to the next phase. These checkpoints help control the rate of cell division. If a mutation disables one of these checkpoints, what is most likely to happen
Answer:
The correct answer would be - Cells begin dividing faster, leading to cancer.
Explanation:
In the process of the cell cycle, there are several checkpoints that ensures that the cell is all set to move to next phase, the cell that not match the requirements cell have not move to next phase.
These checkpoints control the rate of cell proliferation or division and if a dividing cell fails to pass through any checkpoints due to the mutation, it is most likely divide uncontrollably and lead to cancerous or tumor cell.
Thus, the correct answer is - Cells begin dividing faster, leading to cancer.
What is the cell membrane’s function
Answer:
Perhaps its main task is to regulate the entry and exit of particles into and out of the cell.
Which of the following organic molecules is used for chemical digestion?
Answer:
glucose molecules
Explanation:
A rapid change in temperature with depth is known as a
A. thermocline
B. halocline
C. temperocline
D. pycnocline
Calculate Density: Mass = 79.4g
Volume = 29.8 cm
Density = ?
Answer:
2.66 g/cm
Explanation:
Mass=100g
Volume=100mL
[tex]\\ \rm\longmapsto Density=\dfrac{Mass}{Volume}[/tex]
[tex]\\ \rm\longmapsto Density=\dfrac{79.4}{29.8}[/tex]
[tex]\\ \rm\longmapsto Density=2.66g/mL[/tex]
3. Los conductos linfáticos, a medida que se alejan de los tejidos corporales:
a- Se hacen más angostos.
b- Se hacen más anchos.
c- Permanecen del mismo tamaño.
d- Se pierden.
Answer:
b- Se hacen más anchos.
Explanation:
Los conductos o vasos linfáticos son tubos que transporta tanto al líquido linfático (linfa) como glóbulos blancos que fluyen a través del sistema linfático. Estos conductos se inician en el intersticio y terminan en conductos de mayor tamaño que desembocan en la base del cuello, entre las venas yugular interna y la subclavia. A medida que va entrando en los tejidos, los conductos linfáticos se van haciendo cada vez más angostos y finos, convirtiéndose finalmente en capilares linfáticos, donde las sustancias que no pueden penetrar los vasos sanguíneos son recogidas por estos capilares.
Earth is the center of the universe and everything revolves around it A) science B) Pseudoscience
Answer:
The correct answer is - option B. peseudoscience.
Explanation:
Earth is the center of the universe and everything revolves around the earth is a theory known as geocentrism which is presented by the Ptolemy for the first time.
However, this theory is not based on true facts and logic and it is believed by the scientists, and environmentalists on the basis of observation that we are the only planet where life existed and half of the stars above the horizon and half the stars are below the horizon.
According to the excerpt above from a health journal, what decision can an athlete make regarding his diet?
A. His diet should include foods such as eggs, nuts, and fish.
B. He should eat a diet high in carbohydrates to form large muscles.
C. He should increase the amount of time he works out to produce red blood cells.
D. He should get an extra hour of sleep each night to increase protein production.
The correct answer is A. His diet should include foods such as eggs, nuts, and fish.
Explanation:
The excerpt from the journal explains the importance of protein intake for athletes as this contributes to many body functions such as "enzyme production" or "growth and repair of tissues". In this context, athletes will need to have an appropriate protein intake, which is essential to growth muscles or repair them if there is a lesion. Moreover, this can be obtained through the intake of foods such as eggs, nuts, fish, grains, among others. In this context, the best decision is expressed in option A.
Question 7
Bacteria are prokaryotes which means they don't have membrane bound organelles or an organized nucleus.
True
False
Answer:
F
Explanation:
T
Answer:
The correct answer is False
Explanation:
A small generic section of the primary structure of an alpha helix is given below
-amino acid1-amino acid2-amino acid3-amino acid4-amino acid5-amino acid-6-amino acid7-
A) Which amino acid residue's backbone forms a hydrogen bond with the backbone of the seventh(7th) residue?
B) which of the following peptide segments is most likely to be part of a stable alpha helix at physiological pH?
A) -Lys-Lys-Ala-Arg-Ser-
B) -Gly-Arg-Lys-His-Gly-
C) -Pro-Leu-Thr-Pro-Trp-
D) -Gly-Gly-Gly-Ala-Gly-
E) -Glu-Glu-Glu-Glu-Glu-
F) -Glu-Leu-Ala-Lys-Phe-
G) -Tyr-Trp-Phe-Val-IIe-
Answer:
The correct answers are "amino acid3" and option F) "-Glu-Leu-Ala-Lys-Phe-"
Explanation:
The alpha helix is one the most common secondary structures of proteins, characterized by seven residue repeating units that alternate hydrophobic and hydrophilic residues. This sequence match with the peptide segment "-Glu-Leu-Ala-Lys-Phe-", where glutamic acid (Glu) is hydrophilic, leucine (Leu) is hydrophobic; and it does not contain amino acids that disrupt alpha helix such as proline and glycine. The alpha helix structure is stabilized by hydrogen bonds within the residue's backbone, one of them stablished between the third and the seventh amino acid residues.
similarites between jowar and moong ill give you 42 pts
Answer:
Similarity: Both jowar and moong are annual plants.
copied from google
hope that helps you
Answer:
1. It is a type of monocot plant. 1 It is a type of dicot plant.
2. It has fibrous root system. 2 It has tap root system.
3. The leaves of jowar plant show parallel venation. 3 The leaves of moong plant show reticulate venation.
Explanation:
The pH of blood is not affected by: ______a. hyperventilation.b. the pKa of acetic acid or acetate. c. consuming large amounts of sodium bicarbonate.d. fasting and starvation.
Answer:
The correct option is the pKa of acetic acid or acetate.
Explanation:
The blood pH is affected by hyperventilation since it triggers hypercapnia, an increase in metabolic acids and therefore a decrease in blood pH.
Excessive consumption of sodium bicarbonate, since this would alkalize the blood, and finally, prolonged fasting or excessive hunger generates the degradation of fat sources, with the consequent formation of ketone bodies as a product, and therefore entering a metabolic acidosis.
what is nucleotide plss
a compound consisting of a nucleoside linked to a phosphate group. Nucleotides form the basic structural unit of nucleic acids such as DNA.
Answer:
a compound having of a nucleoside linked to a phosphate group.
Explanation:
hopefully this helps you :)
pls mark brainlest
is a tank full of gasoline potential or kinetic?
