The correct order of the cells from the outer region of a seminiferous tubule is Spermatogonium > Spermatid > Secondary spermatocyte > Primary spermatocyte.
What is seminiferous tubules?Seminiferous tubules are located in the testes. Meiosis occurs in this region. The process of spermatozoa happens here, and the germ cells are converted into spermatozoa. They are present in large numbers in the lobule of the testis.
The process occurs in steps, and the order of converting the germ cells into spermatozoa is Spermatogonium > Spermatid > Secondary spermatocyte > Primary spermatocyte.
Thus, the correct order is Spermatogonium > Spermatid > Secondary spermatocyte > Primary spermatocyte.
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A scientist is using a species of green algae to study the electron transport chain in photosynthesis. He uses a laser to inactivate all of chlorophyll A in the algae but leaves chlorophyll B intact (case 1). In a separate experiment, the scientist applies a chemical to the algae that inhibit PS I but do not affect PS II (case 2).
Which of the following results is expected?
A)in case 1, only PS I completely loses function; in case 2, no proton gradient is produced.
B)In case 1, only PS I completely loses function; in case 2, a proton gradient is still produced.
C)In case 1, both PS I and PS II completely lose function; in case 2, no proton gradient is produced.
D)In case 1, both PS I and PS II completely lose function; in case 2, a proton gradient is still produced.
Answer:
D) In case 1, both PS I and PS II completely lose function; in case 2, a proton gradient is still produced.
Explanation:
The light dependent reaction of photosynthesis, which produces the ATP and NADPH needed in the light independent stage of the process, includes complexes of proteins and pigments called PHOTOSYSTEMS. These photosystems (I and II) are key to the functionality of the light dependent reactions in the thylakoid.
The major pigment present in both photosystems is CHLOROPHYLL A, which absorbs light energy and transfers electrons to the reaction center. Chlorophyll B is only an accessory pigment meaning it can be done without. Hence, if all of the chlorophyll A is inactivated in the algae but leaves chlorophyll B intact as in case 1, both PS I and PS II will lose their function because Chlorophyll A is the major pigment that absorbs light energy in both photosystems.
In case 2, if PS I is inhibited and PS II is unaffected, a PROTON GRADIENT WILL STILL BE PRODUCED because the splitting of water into protons (H+) and electrons (e-) occurs in PSII. Hence, H+ ions can still be pumped into the inner membrane of the thylakoid in order to build a proton gradient even without the occurrence of PS I.
the widows peak that is seen in some people is an example of what type of trait?
A. single-gene
B. polygenic
B. abnormal
Answer:
A. single-gene
Explanation:
It is controlled by a single gene that has two alleles. The allele for a widow's peak is dominant over the allele for a hairline with no peak.
When two species interact in a way that is beneficial to both species this is what kind of relationship?
A. Parasitic
B. Mutualistic
C. Commensal
D. Symbolic
Answer:
B
Explanation:
Mutualism is a relationship between two species in which both species benefit. Certain species of bacteria in your intestines form a mutualistic relationship with you.
Answer:
D. Symbolic
Explanation:
hope that helps you out love!! <3
5. The image above is an example of which boundary?
a. Transform boundary
b. Convergent boundary
Divergent boundary
d. All of the above
Answer:
Divergent
Explanation:
Answer:
Im smart so the answer is "blah blah blah" saying the correct right answer
Explanation:
A gene carries the _________ for a trait.
Answer:
A gene carries the information for a trait.
Explanation:
Genes carry the information that determines your traits (say: trates), which are features or characteristics that are passed on to you — or inherited — from your parents. Each cell in the human body contains about 25,000 to 35,000 genes.
A gene carries the information for a trait.
What is gene?The fundamental structural and operational component of heredity is a gene. DNA is the component of genes. Some genes serve as blueprints for the synthesis of proteins. Many genes do not, however, code for proteins.
A few hundred DNA bases to more than 2 million bases make up a gene in a human. Humans are thought to have between 20,000 and 25,000 genes, according to the Human Genome Project, an international research project that aimed to decipher the human genome's sequence and catalog its genes.
Every gene is present in two copies, one from each parent, in every individual. The majority of a person's genes are the same in all persons, but a tiny fraction (less than 1% of the total) are slightly different.
Therefore, A gene carries the information for a trait.
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How has Earth changed during our current era?
A. Dinosaurs became the dominant life form on Earth.
B. Dense forests developed.
C. The oceans formed from water vapor in the atmosphere.
D. Earth cooled enough to form solid rock.
ANSWER
THESE ARE SOME DIFFERENT ANSWERS
1. the climate has cooled and has became less humid
2. Grass started growing across the world.
3. the dense forest has developed
Explanation:
Dense forests started to develop during our current era is how the earth has shown changes.
What is Forest?This is defined as the area of land which is dominated by trees and serves as inhabitants for some organisms in the ecosystem.
With time, the earth changed by the forests becoming denser when compared to previous eras.
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Question 8
6.25 pts
Which of the following is NOT a reason for why nitrogen is important to life on Earth?
a.Nitrogen is used to make organic matter, including proteins.
b.Consumers obtain nitrogen into their bodies by eating organisms that contain nitrogen, such
as plants,
O All of these are important to life.
Nitrogen is a necessary nutrient for plants.
Next >
Answer:
O . All of these are important to life
Does Iodine have cations or anions? PLEASE THIS IS REALLY HARD?!
What is an ion pump??
Answer:
Active transporters or ion pumps are transporters that convert energy from various sources—including adenosine triphosphate (ATP), sunlight, and other redox reactions—to potential energy by pumping an ion up its concentration gradient.
Explanation:
the girl was observing a slide of muscle under microscope identified the muscle of striated on the basis of
Answer:
I think ur and is C. and sorry, I got late
Which four abiotic factors make up climate?
temperature, moisture, sunlight, wind.
sunlight, water, biotic factors, the lithosphere.
the atmosphere, rain, light, organisms.
weather, plant life, biotic factors, water.
Answer:
temperature, moisture, sunlight, wind
Explanation:
Answer:
Tempature, Moisture, Sunlight, Wind.
Explanation:
I know this because i had a quiz with this question.
I hope that this helped! Remember Stay safe and Stay smart!!!
what is osmosis biology
Answer:
osmosis is the movement of water molecules through a semi permeable membrane from a region of higher concentration to lower concentration
Answer:
osmosis is the movement of water molecules through a semi permeable membrane from a region of higher concentration to lower concentration
Explanation:
just did the question
volcanic eruptions can affect climate by
Answer:
The gases and dust particles thrown into the atmosphere during volcanic eruptions have influences on climate. Most of the particles spewed from volcanoes cool the planet by shading incoming solar radiation. The cooling effect can last for months to years depending on the characteristics of the eruption.
Hope this helped, have a good day
Answer:
Volcanoes can impact climate change. During major explosive eruptions huge amounts of volcanic gas, aerosol droplets, and ash are injected into the stratosphere. Injected ash falls rapidly from the stratosphere -- most of it is removed within several days to weeks -- and has little impact on climate change
Explanation:
please help What is used to process fuel in cellular respiration?
Answer: Carbohydrates, fats, and proteins can all be used as fuels in cellular respiration, but glucose is most commonly used as an example to examine the reactions and pathways involved.
Explanation:
Explain the relationship between surface area
and cell size and why it is important for cell sizes
Answer:
The important point is that the surface area to the volume ratio gets smaller as the cell gets larger.
Explanation:
The relationship between surface area and cell size is important to the cell because it determines how materials are exchanged in the cell, such as which materials go out and which come in, based on this ratio.
What is the significance of the cell surface area?The relationship between surface area and cell size is important because cells exchange materials with their surroundings based on it, for example, when the cell size increases, the volume of the cell increases more than the surface area, which decreases the ratio of surface area to volume and allows less substance to exchange through the cell, and vice versa.
Hence, the relationship between surface area and cell size is important to the cell because it determines how materials are exchanged in the cell, such as which materials go out and which come in, based on this ratio.
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A 80 kg patient needs a medication x in the amount of 0.25 mg/kg/day.The medication comes in a liquid solution of 50 mg for every 10ml.How many ml of this solution will this patient need in a day
Answer:
i will give you ur points back but i need these points to do a question but i will give 20 back
Which color of light is reflected by a white t-shirt
Answer:
All of the colors are being reflected
Explanation:
Carbon's valence is _____.
Answer:
Carbon's valence is ±4.
Explanation:
Valency corresponds to the group;
Group 1 has valency +1
Group 2 has valency +2
Group 3 has valency +3
Group 4 has valency ±4
Group 5 has valency -3
Group 6 has valency -2
Group 7 has valency -1
Group 8 has valency 0
The valency refers to how many bonds an atom will make in forming a molecule/compound;
This is also referred to as the combining power of an atom.
We use blank as the matrix through which DNA will travel. In order to physically see the samples that we put in the gel, we first have to add blank to each sample. When we have the samples loaded, we want to make sure we also add what's called a blank which acts as the standard curve in a tube; it's made up of DNA fragments of known sizes. Before running the gel, it's important to make sure that there is blank covering the gel in the gel rig. This will make sure that the electrical current runs through the gel and the gel stays cool
Answer:
This question is asking to fill in the blank spaces with the correct terms. The correct terms to the four blank spaces are:
1) GEL
2) DYE
3) DNA MARKER
4) LID
Explanation:
This question is describing the Gel electrophoresis technique which is used to separate DNA fragments using electric current. The DNA fragments of different sizes migrate through a GEL which serves as the matrix made from Agarose.
In order to physically see the samples that we put in the gel, we first have to add DYE to each sample of DNA. After loading the samples to be separated, a substance made up of DNA fragments of known sizes referred to as DNA MARKER, which acts as the standard curve in a tube is used.
Before running the gel, it's important to make sure that there is LID covering the gel in the gel rig. This will make sure that the electrical current runs through the gel and the gel stays cool.
HELP PLEASE ITS TIMED
Explain the difference between the calorie (lowercase C) and the Calorie (Capital C)?
name some renewable energy and nonrenewable energy
Answer:
Renewable resources include timber, wind, and solar while nonrenewable resources include coal and natural gas.
Which of the following explains why the Multiple-Use Sustained-Yield Act was necessary?
O Increased demand for lumber posed a threat to the nation's forests.
O Public Interest in public forests had declined and needed to be raised.
O Clear-cutting of forests was deemed important to provide for residential areas.
o Forests being opened to Industries led to too great a depletion on many resources.
Need this asap!!!
The diagram below shows part of the process of DNA transcription. Which
mRNA base will go in location 3?
A.Uracil
B.Thymine
C.Cytosine
D.Adenine
Answer:B
Explanation:
Answer: as of april 25th 2023 its D
Explanation:
thats what i got and i was right also im pretty sure that they switch the order
What is photosynthesis?
Answer:
the complex process by which carbon dioxide, water, and certain inorganic salts are converted into carbohydrates by green plants, algae, and certain bacteria, using energy from the sun and chlorophyll.
Explanation:
Question 1
Which clade of organisms is characterized as containing many extremophilic microbes?
А
archaea
B
eukaryotes
С
fungi
D
plants
Answer:
The answer is A.) Archaea.
The clade of organisms characterized as containing many extremophilic microbes is archea. The correct option is A.
What are archaea?A class of microbes known as archaea is related to yet evolutionary separate from bacteria. Numerous archaea have been discovered to survive in harsh conditions, such as high pressures, salt concentrations, or temperatures.
Extremophiles are the name given to these kinds of creatures. Single-celled microbes called archaea have a similar structure to bacteria. They make up the third domain of life and are unique from bacteria and eukaryotes in terms of evolution. Archaea are obligate anaerobes that exist in low-oxygen settings (e.g., water, soil).
Therefore, the correct option is A, archaea regarding the extremophile microbes.
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Determine if the following statement is TRUE or FALSE:
The boiling point is the same temperature as the condensation point.
Answer:
False
Explanation:
condensation points is the complete opposite of boiling points. Condensation point is when its is so cold that water goes from a gas to a liquid and boiling points is when water goes from liquid to gas because it is so hot. Hope this help! -3-
what is the equation for photosynthesis? why is it important for the plants to have both cellular respiration and photosynthesis(think about the equations)
Answer:
The photosynthesis equation is as follows: 6CO2 + 6H20 + (energy) → C6H12O6 + 6O2 Carbon dioxide + water + energy from light produces glucose and oxygen.
Photosynthesis produces the oxygen to replenish oxygen that is used up by living organisms during respiration. Carbon dioxide produced during respiration is one of the reactants plants need to perform photosynthesis. Photosynthesis and cellular respiration are both part of a mutually beneficial relationship.
Which of the following is a product of photosynthesis?
protein
fats
nucleic acids
glucose
Answer:
glucose
Explanation:
Answer:
D glucose is the answer
Which of the following is true about cells?
A.
In general, eukaryotic cells do not have a true nucleus or membrane-bound organelles, whereas prokaryotic cells contain both a nucleus and organelles enclosed by membranes.
B.
Neither prokaryotic cells nor eukaryotic cells ever contain both a true nucleus that is well-defined and organelles that are separated from the cytoplasm by membranes.
C.
Both eukaryotic cells and prokaryotic cells always contain both a true nucleus that is well-defined and organelles that are separated from the cytoplasm by membranes.
D.
In general, prokaryotic cells do not have a true nucleus or membrane-bound organelles, whereas eukaryotic cells contain both a nucleus and organelles enclosed by membranes.
Answer:
d
Explanation:
d 100% literally was just learning about this