You just read an article on the Endosymbiotic Theory. Based on what you read, what is the importance of the Endosymbiotic Theory? its asking for a paragraph pls help!!
Answer:
The endosymbiotic theory which is also sometimes referred to as symbiogenesis states that all the organelles of the eukaryotic cells are prokaryotic cells that tends to live in a much larger host. This theory is important because it does explains how the eukaryotic cells are able to obtain the needed nourishment that is believed to be replenished by the prokaryotic cells.
Explanation:
The endosymbiotic theory provides the foundational bases of the cellular biology field and it enables to understand the evolution of eukaryotic cells.
In a similar manner to the evolutionary theory, endosymbiotic biology is fundamental to understand the evolution of eukaryotic cells.The endosymbiotic theory states that eukaryotic cells evolved by a symbiotic (positive) relationship among a primitive eukaryotic cell and prokaryotic cells. Mitochondria and chloroplasts are organelles that evolved from this cooperation.This theory allows us to understand several features of mitochondria and chloroplasts:Both chloroplasts and mitochondria have their own genetic material (DNA).Chloroplasts and mitochondria have bacterial-like ribosomes, which are responsible for protein synthesis.
In conclusion, the endosymbiotic theory provides the foundational bases of the cellular biology field and it enables to understand the evolution of eukaryotic cells.
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why do sperm cells need energy?
Sperm cells need energy primarily to move towards and fertilize the egg. This energy is provided by ATP, produced by mitochondria densely packed in the sperm's midpiece. Sperm's functionality and survival depend on this energy, especially during the journey within the female reproductive tract.
Explanation:Sperm cells require energy for several reasons. As highly specialized cells, they are designed to travel a significant distance to reach and fertilize an egg. The midpiece of a sperm is densely packed with mitochondria, organelles known as the powerhouses of the cell, which produce adenosine triphosphate (ATP) — the energy currency of the cell. This energy is crucial for the motion of the sperm’s tail, a long flagellum, allowing it to propel itself forward effectively.
Considering that sperms are minuscule, and so many are produced daily, the speed at which they must move to reach the oocyte is comparable to a human walking briskly. This is a remarkable feat and demands vast amounts of ATP. Additionally, during capacitation, fluids in the female reproductive tract further prepare the sperm for fertilization, which also requires energy.
UL
Virus
1. Disease can be caused by viruses, bacteria,
fungi, parasites, or toxic chemicals. Which of these
diseases is the result of toxic chemicals?
O A. Polio
B. Impetigo
O c. Malaria
D. Emphysema
A population of ground squirrels lives in underground burrows several miles from an ocean shore. If a hurricane strikes the shore, which effect of the hurricane would probably do the most damage to the squirrel population?
Answer:
flooding
Explanation:
The hurricane brings in enormous amounts of rainfall with it, often resulting in flooding. The ground squirrels in this scenario live relatively close to the ocean shore. They live in burrows, spending big portion of their time in them, as well as having their young ones sheltered in them. The heavy rainfall and the flooding of the area will result in filling the burrows with water. The damage for the population of ground squirrels will be enormous, with their young ones all drowning for sure, and the majority of the adults getting drowned as well, or maybe even all of them. Hope this helps!!!!!
How are the different types of Spectra created?
Different types of spectra are created through processes like emission, absorption, and continuous radiation.
Different types of spectra are created based on how light or electromagnetic radiation interacts with matter:
Emission Spectra: Emission spectra are produced when atoms or molecules emit light as electrons transition from higher to lower energy levels. When an external energy source, such as heat or electricity, excites the electrons within an atom or molecule, they move to higher energy levels. As they return to their ground states, they release energy in the form of specific wavelengths of light. Each element or compound has a unique set of emission lines or spectral lines, allowing scientists to identify the composition of substances and their energy levels.
Absorption Spectra: Absorption spectra are generated when matter absorbs specific wavelengths of light from a continuous spectrum. When light passes through a medium, such as a gas or a liquid, atoms or molecules within that medium can absorb photons with energies that match the energy differences between their electron energy levels. As a result, dark lines or bands, known as absorption lines, appear in the spectrum where light has been absorbed. Absorption spectra help identify the elements or compounds present in a sample and provide information about their energy levels.
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Herbicides are non-selective for what type of use?
O Golf courses
O Garden
O Yards
Industrial
Answer:
this is some useful info you could use!
Explanation:
Pre-emergent herbicides are used to stop the germination of plant seeds. A non-selective herbicide tries to kill most plants while a selective herbicide is designed to kill specific types of plants, usually grasses or broad leaf weeds.
But the answer is yards:::::::::
Which kingdoms include unicellular organisms?
Answer:
Older system divides eukaryotic organisms into Animalia, Plantae, Fungi, Chromista and Protista. All of these 5 kingdoms contain unicellular species, except for Animalia. Note: Eukarya, Bacteria and Archea are not "kingdoms" as some people wrote. They are "domains" of life or "superkingdoms"!
i hope this helps :)
Explanation:
The kingdoms that include unicellular organisms are Protista, Archaea, and Bacteria. While Protista consists of both unicellular and multicellular organisms, the Archaea and Bacteria kingdoms are strictly unicellular.
Explanation:The kingdoms that include unicellular organisms are Protista, Archaea, and Bacteria. Organisms in the Protista kingdom can be unicellular or multicellular, but many are unicellular like amoebas and paramecia.
On the other hand, all organisms in the Archaea and Bacteria kingdoms are unicellular and represent some of the earliest forms of life on Earth.
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A scientist has a very small sample of DNA. To analyze the DNA, which would be the MOST USEFUL first step for the scientist to follow?
A. Use restriction enzymes to make multiple copies of the DNA.
B. Use the polymerase chain reaction (PCR) to make multiple copies of the DNA.
C. Transfer the DNA into bacteria, and allow the bacteria to be replicated many times.
D. Use restriction enzymes to cut the DNA into many small pieces.
The correct answer is option (B).The most useful first step for analyzing a very small DNA sample is to use the Polymerase Chain Reaction (PCR) to make multiple copies of the DNA. PCR allows for rapid amplification of DNA, providing sufficient quantities needed for subsequent analyses like restriction enzyme digestion and gel electrophoresis.
To analyze a very small sample of DNA, the most useful first step is to use the Polymerase Chain Reaction (PCR). PCR is a widely used technique in molecular biology that permits rapid amplification in the number of copies of specific DNA sequences. This method follows the principles of DNA replication, allowing for the exponential increase of DNA in a short period to generate large quantities necessary for analysis, making it extremely useful in various applications such as research, forensic investigations, and clinical diagnostics.
Restriction enzymes are used to cut DNA into pieces based on specific sequences, which can then be analyzed using gel electrophoresis. However, without enough copies of DNA, restriction enzyme digestion is not viable. Inserting DNA into bacteria is another method of DNA amplification but is more time-consuming compared to PCR.
How are organisms in the domain Eukarya different from those in the domain
Archaea?
O A. Eukaryotes have one cell.
B. Eukaryotes have a cell wall.
O C. Eukaryotes have DNA.
D. Eukaryotes have organelles in membranes.
organisms in the domain Eukarya different from those in the domain Archaea are - D. Eukaryotes have organelles in membranes.
The Eukarya differ from the Archea and Bacteria. The eukarya domain has eukaryotic cells whereas the Archaea domain has prokaryotic cells.
Eukarya consist up of a "membrane-enclosed nucleus" and "other membrane-enclosed organelles".Cell wall present in all Archaea and some of the eukarya.DNA is the genetic material in all domains.Eukarya organisms can be unicellular or multicellularThus, organisms in the domain Eukarya are different from those in the domain Archaea are - D. Eukaryotes have organelles in membranes.
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Eukaryotes, found in the domain Eukarya, have a nucleus and other membrane-bound organelles whereas organisms in the domain Archaea do not. Archaea instead are prokaryotes with no nucleus or membrane-bound organelles.
Explanation:Organisms in the domain Eukarya are different from those in the domain Archaea in several ways, most notably in their cellular structure. The key distinguishing factor is that Eukaryotic cells, found in Eukarya, have a nucleus that contains their DNA and have other distinct membrane-bound organelles such as mitochondria and Golgi bodies. This is option D: Eukaryotes have organelles in membranes.
In contrast, organisms in the domain Archaea don't have these features. They are prokaryotes, meaning their cells do not contain a nucleus or other membrane-bound organelles. Their DNA is found in the cytoplasm rather than a membrane-bound nucleus.
It is also important to note that while some eukaryotes do have cell walls (like plants and fungi), not all eukaryotes do (animals, for instance). By contrast, all archaea have a cell wall, but it's made up of different material than the cell walls in Eukarya.
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A cross between two pure parents for contrasting traits, e.g. tall and short , result in offspring trait are referred to as: (a) medium (b) short (c) hybrids (d) pure for both traits
Answer:
A. Medium
Explanation:
The offspring would get a mix of both of the traits.
which of the following is not an example of homeostasis? A. after plunging into icy cold water Gary's core body temperature rapid drops. B. while exercising Julie has heart rate and breathing increase the balance to increase oxygen used by her muscle cells. C.on a hot day Martin doesn't drink very much water heater kidneys respond by removing very little water from his blood resulting in yellow concentrated urine. D.after eating a candy bar April's pancreas secretes insulin causing extra blood sugar to be removed PLZ ANSWER QUICKKKK
All the options except A are examples of homeostasis, where the body maintains internal stability. In option A, Gary's temperature drops rapidly due to the icy water, which is a failure to maintain homeostasis.
Explanation:Homeostasis refers to the process of maintaining a stable internal environment within an organism, despite the changes in external conditions. The body's various systems engage in a constant dance of adaptation and recalibration, keeping key factors like temperature, glucose levels, and water content steady. Failure to do so can lead to detrimental health effects, or in severe cases, possibly death.
Among the options you mentioned, A. 'after plunging into icy cold water Gary's core body temperature rapid drops' is not an example of homeostasis. This is because homeostasis involves maintaining internal equilibrium. In this case, Gary's body temperature is rapidly dropping due to the icy water, rather than being maintained at a stable level.
Option B, C, D describes the body's efforts to maintain stable heart rate, hydration, and blood sugar levels respectively – all of which are examples of homeostasis.
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What causes the change from day to night and vice versa?
OA.
The orbit of Earth around the sun.
OB.
The rotation of Earth on its axis.
OC. The orbit of the sun around Earth.
OD. The moon's rotation around Earth.
Answer:
its right
Explanation:
STUDY ISLAND
What is heat?
A. Temperature
B. Thermal energy
C. Electricity
D. Electromagnetic energy
Why is temperature important to ocean water? HELP ASAP WILL MARK BRAINLIEST!!!!
A scientific theory can be defined as a well-supported and widely accepted explanation of nature. According to this definition, which statement describes a scientific theory.
A) The Earth is older than 100,000 years.
B) Matter cannot be created or destroyed.
C) For every action, there is an equal and opposite reaction.
D) Natural selection is one of the mechanisms by which evolution occurs.
PLEASE HELP! I AM MARKING BRAINLIEST!
Answer:
I specifically think A is the answer ur looking for. I mean take real smarts to know that right ?
Which of the following best describes Earth's orbital position in our solar system?
A. Outside of the gas giants
B. An inner planet
C. An outer planet
D. Outside of three smaller planets
Answer:B: the inner planet
Explanation:
Earth as an inner planet best describe Earth's orbital position in our solar system. (Option B)
Earth's orbital position in the Solar SystemEarth is the third planet from the sun after Mercury and Venus and orbits at an average distance of 93 million miles, meaning that it takes sunlight about eight minutes to arrive. As you move outward from the sun, the planets are spaced increasingly farther apart. Jupiter is about five times as far from the sun as earth, while Neptune is some thirty times farther.
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what effect would the enzyme have on the amount of product made in 3 seconds?
Answer: I believe it should be increase. If that doesn’t work, let me know and I’ll correct it.
Explanation:
The effect that an enzyme would have on the amount of product made with time would be to increase it.
Basically, what enzyme does is to the lower energy barrier that reactants need to cross in order to get to products - the activation energy.
The similitude of using enzyme in a reaction is like using a shorter route to get to a destination. You gain time as compared to someone that used a longer route. Hence, your rate of reaction is increased.
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Which two sentences describe ways that populations might be harmed by floods?
A. Organisms that thrive jn moist conditions have more places to live
B. Animals who’s shelters are on land drown while the land is under water
C. Plants that were living in soil that is washed away are killed
D. Animals that lay eggs in water have more chance to reproduce.
Answer:
I'm not sure but in my condition the answer is a
Answer:
B. Animals who’s shelters are on land drown while the land is under water
C. Plants that were living in soil that is washed away are killed
DNA is also a ___________ ___________, which means it is composed of thousands of subunits called ________
What breaks down and provides the body with glucose?
When the stomach digests food, the carbohydrate (sugars and starches) in the food breaks down into another type of sugar, called glucose. The stomach and small intestines absorb the glucose and then release it into the bloodstream.
just FYI you can look up these answers in google
Photosynthesis equation?
Answer:
6CO2 + 6H20 + (energy) → C6H12O6 + 6O2
Explanation:
Carbon dioxide + water + energy from light produces glucose and oxygen.
Answer:
6CO2 + 6H20 + (energy) → C6H12O6 + 6O2 Carbon dioxide + water + energy from light produces glucose and oxygen.
Explanation:
The diagram illustrates one method of genetic recombination.
A paternal and maternal gene cross-over.
Which method of genetic recombination is illustrated in the diagram?
a.)crossing over
B.)independent assortment
c.)fertilization
d.)tetrad formation
Answer:
A cross over
Explanation:
hope that helped
Answer:
A. crossing over
Explanation:
is carbon atoms move between the atmosphere and organisms connecting earths biosphere and atmosphere true or false
Uri tests a material and determines
that it is a mineral. Which of these
observations supports his
conclusion?
The material was found underground.
The material was not a solid.
The material was made of crystals.
The material was heavy.
Answer:
Explanation:
The properties of a mineral include
A definite chemical composition and crystal structure
Created through Inorganic processes
Solid
These are the main differences between rocks and minerals
What would be the complementary strand for the following template?
CTAGGAAGTTC
OCTAGGAAGTTC
O GATCCTTCAAG
O TCGAAGGCCT
O AGCTTCCTGGA
Answer:
GATCCTTCAAG
I believe
The picture represents a lipid before it undergoes the process of digestion. The chains that are broken during the process of digestion are known as:
sugar
fatty acid
nucleic acid
complex carbohydrate
Answer:
Fatty acid chains
Explanation:
A Triglyceride molecule is made up of 3 fatty acid chains and 1 glycerol molecule held together by ester bonds.
Digestion of lipids using lipases hydrolysed the ester bonds to release 1 molecule of glycerol and 3 molecules of fatty acid chains.
2. If 28% of the bases in a DNA strand are guanine, what percentage are thymine?
3. DNA replication is semi-conservative. What does this mean?
4. Match the DNA replication enzyme with Its correct function:
1.__ Helicase
2.__ primase
3.__ DNA polymerase
a. Adds new DNA nucleotides
B. Unwinds the DNA strand
C. Add an RNA primer to signal where replication should begin
Answer:
2) According to Erwin Chargaff's rule:
* Purine adenine is equimolar with pyrimidine thymine
* Purine guanine is equimolar with pyrimidine cytosine
i.e. A = T & G = C
So, If G = 28% then C = 28%
Total bases = 100%
A + T + G + C = 100%
2T + 2G = 100%
2T + 56% = 100%
2T = 100% - 56%
2T = 44%
T = 22%
Percentage of thymine = 22%
3) Watson and Crick proposed a scheme for DNA replication that suggest that the two stands of DNA would separate and act as template for the synthesis of complementary strands. After the completion of replication, each DNA molecule would have one parental and one newly synthesized strand. This scheme was termed as semi-conservative DNA replication.
4) 1. Helicase - B. Unwinds the DNA strand
2. Primase - C. Add an RNA primer to signal where replication should begin
3. DNA polymerase - A. Adds new DNA nucleotides
why do ecosystems require continuous input of energy from the sun, and what is the process that converts the suns energy to chimical energy
Answer:
Ecosystems require continuous input of the sun's energy, to support the plant life, which feeds the herbivores of that community, and so on throughout the trophic levels. The process that converts the sun's energy to chemical energy is known as photosynthesis.
Explanation:
hope this helps!
Which adaptation would be beneficial to a desert plant?
A. Fleshy leaves that store water
B. Porous leaves that lose water easily
C. Vines that grow up tall trees
D. Flat leaves that maximize light absorption
Which animal is an ectotherm? eagle turtle whale kangaroo
Answer:
Turtles are ectotherms.