A stoma consists of a _____. View Available Hint(s)for Part A gap where primary and secondary cell walls are missing water-conducting cell with vessel elements pore surrounded by specialized guard cells waxy substance found on the surface of a plant
Answers
A stoma consists of a pore surrounded by specialized guard cells.
The pore allows for gas exchange, while the guard cells regulate the opening and closing of the pore to control water loss and uptake by the plant.
Stomata are found primarily on the leaves of plants, where they play a critical role in photosynthesis, respiration, and transpiration.
The opening and closing of the stomata is controlled by a variety of internal and external factors, including light, humidity, and CO2 levels.
When the plant needs to conserve water, the guard cells close the stomata, reducing water loss through transpiration. When the plant needs to take in CO2 for photosynthesis, the guard cells open the stomata, allowing for gas exchange.
The regulation of stomata is a complex process that involves a variety of signaling pathways and genetic factors, and understanding these processes is essential for improving crop yields and developing more water-efficient plants.
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Related Questions
In the species selection model, __________ is to macroevolution as __________ is to microevolution.
a. exaptation; adaptation
b. genotype: phenotype
c. disruptive selection; balancing selection
d. allopatric speciation; sympatric speciation
e. differential speciation success; differential reproductive success
Answers
In the species selection model differential speciation success is to macroevolution as differential reproductive success is to microevolution.
The model of species selection, what is it?The process of species selection is what leads to the proliferation of species with higher speciation and lower extinction rates. Macroevolution and microevolution might not be related because of species selection.
Fast growth, a short food chain, efficient food conversion, quick acceptance of compounded feeds, good table quality, disease resistance, simplicity of breeding in captivity, early maturation, high fecundity, tolerance to a wide range of environmental parameters, etc.
Classic illustrations of macro- and micro-evolution are these two extremes. Microevolution takes place on a small scale (within a single population), whereas macroevolution takes place on a scale that extends beyond the bounds of a single species.
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Which of these components are found in the DNAs of all living organisms? Group of answer choices Estrogen & Testosterone Hemoglobin & Lymphocytes Cytosine & Guanine Cellulose & Chlorophyll
Answers
Answer:
Cytosine & Guanine
Explanation:
Living organisms contain in their cell a biomolecule responsible for the storage and transmission of genetic information called NUCLEIC ACID. DNA is one of the two nucleic acids found in living cells. However, the DNA molecule is a polymer made up of monomeric units called NUCLEOTIDES.
Nucleotides of a DNA are made up of three components namely: 5-carbon sugar (deoxyribose), phosphate group, and a nitrogenous base (Adenine, Guanine, Cytosine and Thymine). Hence, based on the question, Cytosine & Guanine are the components (nitrogenous base) found in the DNA of all living organism.
1. There are
domains.
1
2
3
4
Answers
Answer:
3
Explanation:
There are three domains of life, the Archaea, the Bacteria, and the Eucarya.
Answer:
There are 3 domains
Explanation:
the Archaea, the Eucarya, the Bacteria.
39. The process by which light is trapped and converted to chemical energy iscalledA. cellular respiration.B. photosynthesis.C. the Calvin cycle.
Answers
Photosynthesis is the process by which plants trap light energy through their pigments and together with carbon dioxide and water generate a carbohydrate (chemical energy).
That is, photosynthesis is the process in which light energy is converted into chemical energy in the form of sugars.
we can conclude that the correct answer is:
Answer:B. photosynthesis.
A differential interference contrast microscope uses __________ to examine a specimen. which type of microscope would one use to examine the internal structure of a nucleolus?
Answers
A differential interference contrast microscope uses light to examine a specimen. The microscope used to examine the structure of the nucleolus is a transmission electron microscope.
What is an electron microscope?The electron microscope achieves extraordinarily high resolution by illuminating the object of investigation with an electron beam rather than a light beam. A specimen with a thickness of up to one micrometer can be imaged using a transmission electron microscope (TEM). Compared to TEMs, high-voltage electron microscopes operate at substantially greater voltages.
A picture of the specifics of the surface structure is constructed using the scanning electron microscope (SEM), which scans an electron beam over the surface of a solid object. In contrast to the SEM, the environmental scanning electron microscope (ESEM) is suitable for studying damp objects, including certain live creatures. It can provide a scanned picture of a specimen in an atmosphere.
Therefore, a transmission electron microscope will be used for examining the nucleolus.
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find the rate of change of the volume of a balloon (sphere) with a circumference increasing by at 3picm per minute when the radius is 5cm
Answers
The rate of change of the volume of the balloon (sphere) is 150π cubic cm/min. The formula for the volume of a sphere is given by; V = (4/3)πr³.
Given that the circumference of a balloon (sphere) is increasing at a rate of 3π cm/min and the radius is 5 cm, we have to find the rate of change of the volume of the balloon. We know that the formula for the volume of a sphere is given by; V = (4/3)πr³. Differentiating with respect to time gives; dV/dt = 4πr² × dr/dt
We know that the circumference of a sphere is given by; C = 2πr
Differentiating with respect to time gives; dC/dt = 2π × dr/dt
Now we can find the value of dr/dt from the above expression; dr/dt = dC/dt ÷ 2πPutting the given value in the above expression, we have ;dr/dt = 3π ÷ 2πdr/dt = 3/2 cm/min
Now substituting the value of r and dr/dt in the expression for dV/dt; dV/dt = 4πr² × dr/dt dV/dt = 4π(5)² × (3/2) dV/dt = 150π
Therefore, the rate of change of the volume of the balloon (sphere) is 150π cubic cm/min.
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Pls help I asked 3 times and I used all my points!! Which field studies all organisms that have existed, where they came from, and how they are related
Answers
Answer:
palientology
Explanation:
Answer:
A. ecology
Explanation:
it's the study of organisms and their relations to one another and their surroundings.
Which eyepiece and objective lens combination enables you to see the greatest number of cells in the field of view? eyepiece objective A X5 X10 B x 10 X10 C X5 X40 D x10 X40
Answers
Option A is Correct. The most cells can be seen in the field of view when using an eyepiece and objective lens combination of X5 X10.
The most expansive field of view is offered by a 10x objective lens. The smaller lens provides greater room for viewing via the microscope. A smaller viewing area is provided because the 40x lens has a higher magnification.
Low Power Goal (10x): When it comes to monitoring and evaluating glass slide samples, the low power objective lens, which has more magnification power than the scanning objective lens, is one of the most useful lenses. The ocular lens' magnification (10), multiplied by the objective lens, equals the overall magnification (100). If we add 100 to 10, we get 1,000.
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which of the following is an example of positive feedback?
Answers
Answer:
uuh theres not an example please comment under this post to me the options
Explanation:
How does mitosis repair damage of lung cells due to smoking
Answers
So basically mitosis takes place by splitting the lung cells thereby creating new lung cells and helps to repair the lung
If a stationary front does not move much, what kind of weather can you expect in your area?
Answers
Answer:
A stationary front forms when a cold front or warm front stops moving. The weather is often cloudy along a stationary front, and rain or snow often falls, especially if the front is in an area of low atmospheric pressure.
Explanation:
Hope this helps.
(Its actually Physical Science)
To create a molecular model a student will use blue spheres to represent nitrogen (N) and white spheres to represent hydrogen (H). which option correctly describes a model of ammonia, NH3?
A. three blue spheres and three white spheres
B. one blue sphere and three white spheres
C. three blue spheres and one white sphere
D. one blue sphere and one white sphere
Answers
A molecular model is a three dimensional representation of a molecule that aids conceptualization of the actual nature of the molecule.
The correct answer is option B: one blue sphere and three white spheres
A molecular model helps us to see something close to what a molecule actually looks like in a three dimensional way.
The essence of molecular models is to aid conceptualization of details about arrangement of atoms in a molecule.
Since nitrogen is represented with blue balls and hydrogen is represented with white balls, it follows that a properly prepared model consists of one blue sphere and three white spheres.
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WILL GIVE BRAINLIST!!!Question 7 (2 points)
While calculating the epicenter of an earthquake, scientists at one of the
seismometer stations received P waves, but did not receive any recorded S waves,
what does this most likely mean?
A. There was no earthquake recorded
B. Their seismometer is malfunctioning
C. The earthquake was not strong enough to reach their location
D. The S waves cannot travel through liquids; therefore, this signifies there is a
liquid between the epicenter and the location.
Answers
Answer:
It's D!
Explanation:
(I took the K12 quiz. Don't know if this question is from K12, but it is D either way!)
how do producers differ from all other organisms in an ecosystem
Answers
Answer:
They are photosynthetic.
They take in carbon, water, sunlight to produce their food.
Explanation:
Hope it helps.
Why is sexual selection often referred to as a "special case" of natural selection?
A.
Because sexual selection only occurs in a limited number of species.
B.
Because, while natural selection overall favors the fittest, sexual selection does not always.
C.
Because sexual selection has been at play for a shorter time than natural selection.
D.
Because, while natural selection leads to certain members having more offspring, sexual selection does not lead to offspring.
Answers
Sexual selection is often referred to as a "special case" of natural selection because while natural selection overall favors the fittest, sexual selection does not always which is denoted as option B.
What is Natural selection?This is referred to as the process whereby organisms better adapted to their environment tend to survive and produce more offspring.
Sexual selection is referred to as a special type of natural selection because natural selection overall favors the fittest while sexual selection does not always due to some parameters such as genetics and environment.
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Identification of Digestive System Structures Identify the structures numbered 3-6 on the X-ray of the human stomach shown in Figure 34.14. 3. _________4. _________5. _________6. _________
Answers
Identification of Digestive System Structures of the X-ray of the human stomach:
3. gastric folds 4. superior part of Duodenm 5. Phyloric sphincter 6. gastric canals.
The digestive system's anatomy. Organs of the digestive system are crucial for breaking down both food and water. The mouth, pharynx (throat), esophagus, stomach, large intestine, rectum, and anus are among them. The salivary glands, liver, gallbladder, and pancreas are all components of the digestive system and produce digestive fluids and enzymes that aid in digesting.
The mouth, pharynx (throat), esophagus, stomach, small intestine, large intestine, rectum, and anus are all parts of the digestive system. Salivary glands, the liver, gallbladder, and the pancreas are also included since they produce digestive fluids and enzymes that aid the body in breaking down food and liquids. also known as the digestive system.
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Explain the stages of ecological succession. Choose either Primary or Secondary succession and then explain the stages of ecological
succession.
A good essay will be 5-6 sentences and will include:
A) What kind of natural disaster caused the ecological succession
B) Types of plants found in each stage (ex: trees, shrubs, grasses, etc.)
Answers
Answer:
Label E
Label E
Explanation:
Label ELabel ELabel ELabel E
the process of engulfing food or liquid into the cell
A)exocytosis
B)endocytosis
C)osmosis
D)diffusion
Answers
Explanation:
Enficytosis is the correct answer.
Compare and contrast the production of hydrogen through electrolysis and through the breakdown of methane
Answers
Answer:
Electrolysis is more expensive. Electrolysis is when water molecules break down into oxygen and hydrogen gas. Breakdown of methane contains carbon and releases CO2.
What is the Family an d Species of Red Algae?
What is the species of Cyanobacteria?
(KPCOFGS)
Answers
The family of red algae is diverse and includes several different families, such as Rhodomelaceae, Gelidiaceae, and Porphyridiaceae.
The species of red algae vary greatly within these families. Cyanobacteria, on the other hand, belong to the phylum Cyanobacteria and are not classified using the KPCOFGS taxonomy system. Instead, they are classified based on their morphological and physiological characteristics.
Red algae, also known as Rhodophyta, comprise a large and diverse group of algae. They are classified into different families based on their characteristics, including the structure of their thallus (body), reproductive structures, and pigments. Some common families of red algae include Rhodomelaceae, Gelidiaceae, and Porphyridiaceae.
Within these families, there are numerous species of red algae, each with its unique characteristics and habitats. Cyanobacteria, also known as blue-green algae, are a group of photosynthetic bacteria. They belong to the phylum Cyanobacteria and are not classified using the KPCOFGS taxonomy system typically used for plants and animals.
Cyanobacteria are classified based on their morphological features, such as cell shape, arrangement, and pigmentation, as well as their physiological characteristics and genetic traits. The classification of cyanobacteria is continually evolving as new information and techniques are discovered in the field of microbiology.
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In humans there is approximately 30% adenine (A). What is the percentage of each of the other 3 DNA bases?
Show math calculations for 7a, 7b, and 7c.
Answers
In Double Stranded DNA , Adenine pairs with Thymine as we know, it means amount of A = Amount of T. Here A=30% so T=30%
Total will be 100% (for all 4 bases) , left out is 30 % which will be equally divided by Guanine and Cytocine , hence G=20% and C=20%.
A=30% T=30% G=20% C=20%
A pedigree of a family with red-green colorblindness, a sex-linked recessive genetic disorder, is diagrammed below. What is the genotype of individual 3?
A. XBXB
B. XbY
C. XbXb
D. XBY
Answers
Individual 3's genotype is XbXb. When The chart below shows the family tree of a person who has red-green colorblindness, a genetic condition that is sex-linked and recessive.
Can an individual with the XY genotype carry the red-green color blindness quizlet?No, because the X chromosome is only found in males in a single copy. They cannot serve as carriers. A woman is married to a man with normal vision, but she is colorblind in the red-green spectrum.
What is BB's genotype?In the case of eye color, "B" denotes a brown allele while "b" denotes a blue allele. A homozygous dominant genotype is characterized by the presence of two dominant alleles for a trait in an organism. This genotype is designated as BB using the example of eye color.
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Which type of mutation is this:
Original Strand: TTC AGC TAG
Mutated Strand: TTC AGC CAG
Answers
Answer:
substitution
Explanation:
It switched with T-C, nothing had gotten added on or deleted.
How did the articles of confederation compare to the constitution in regard to sovereignty?
Answers
States enjoyed greater autonomy under the Articles, whereas the Constitution granted some powers to the states.
What is articles of confederation?The 13 founding states of the United States of America came to an agreement known as the Articles of Confederation and Perpetual Union, which functioned as the country's first system of governance. On November 15, 1777, the Second Continental Congress approved it following lengthy discussion and forwarded it to the states for ratification.In the Articles of Confederation, which served as the nation's first constitution, the confederacy of the former 13 colonies was referred to as "The United States of America."The 13 articles that made up the Articles of Confederation granted authority to a federal government headed by Congress.Following the United States' declaration of independence from Great Britain, the national government's functions were codified in the Articles of Confederation.The Continental Congress approved the Articles of Confederation on November 15, 1777. This text functioned as the first constitution of the United States. It lasted from March 1, 1781, until the current Constitution took effect in 1789.Learn more about the articles of confederation here:
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can
u answer questions 1-3, and write 4-5 sentces for each question
Walid Elkhatib, an Arab American, bought a Dunkin' Donuts franchise in Illinois. Ten years later, Dunkin' Donuts began offering breakfast sandwiches with bacon, ham, or sausage through its franchises.
Answers
The situation presented is that Walid Elkhatib, an Arab American, bought a Dunkin' Donuts franchise in Illinois. This is the central fact mentioned The situation states that Walid Elkhatib, who is an Arab American, purchased a Dunkin' Donuts franchise in Illinois.
The new development introduced is that Dunkin' Donuts began offering breakfast sandwiches with bacon, ham, or sausage through its franchises. This development is related to the breakfast menu expansion states that Dunkin' Donuts started providing breakfast sandwiches with options like bacon, ham, or sausage in its franchises. This information is introduced, highlighting the specific menu expansion.
Walid Elkhatib, an Arab American, purchased a Dunkin' Donuts franchise in Illinois. Dunkin' Donuts began offering breakfast sandwiches with bacon, ham, or sausage through its franchises The given situation includes Walid Elkhatib, an Arab American, who acquired a Dunkin' Donuts franchise in Illinois.
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How many sperm cells are formed from an original cell in a Drosophila fruit fly at the conclusion of meiosis?
O A two haploid sperm cells
O B. two diploid sperm cells
O C. four haploid sperm cellab
O D. four diploid sperm cells
Answers
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Kevin, an electrical engineer, comes to work every day with a positive attitude. He has many goals, and he knows that he will have to work hard to achieve them. Kevin completes his projects on time and offers to help out when needed. Kevin has strong skills in which area?
A.
integrity
B.
conflict-resolution
C.
self-representation
D.
teamwork
E.
positive work ethic
Answers
Integrity is the strongest skill kevin is having .
Integrity is the quality of being honest and have morals to follow . It involves sticking by your promise taking responsibility and treat others with due respect . Integrity teaches you doing the right thing in reliable way and achieving the goals.
Integrity is the most admirable personality trait that means the wholeness of the character .Integrity is the quality of having strong ethical or moral principles and obeying them every times. A person with integrity acts with honesty, honor, and truthfulness. Example includes when you are at workplace you obey the time and take whole sole responsibility of the work you are doing .
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what would happen to a cell if there was no endoplasmic reticulum? Please help ;-;
Answers
If your cell did not produce proteins enzymes would not be available to speed up reactions throughout your body, and they would also not be available to make the many organelles made with proteins such as microtubules which would cause many other problems within the cell.
Have a luvely day!
Which description explains why there are two high and two low tides in a day
Answers
Answer:
The tides are caused by the rotation and the positioning of the moon relative to the Earth. The moon exerts a gravitational pull that is felt the strongest on the closest point of the Earth to the moon and the furthest.
Explanation:
What is the term for a preserved footprint left behind by an animal?
O A. Embryo
O B. Code
O C. Fossil
O D. Isotope
Answers
Answer:
A fossil.
It would be C