Answers
Final answer:
The primary difference between the domains Eukarya and Bacteria is that Eukarya contains organisms with cells that have nuclei and other organelles, while Bacteria consists of single-celled prokaryotes without nuclei, with genetic material that is not membrane-bound.
Explanation:
The domain Eukarya is one of the three domains of life, alongside Bacteria and Archaea, in the classification system of organisms. The chief distinction between the domain Eukarya and domain Bacteria lies in cellular organization. Organisms within the domain Eukarya possess cells with nuclei, where their genetic material is encased in a membrane-bound nucleus, and they also contain other membrane-bound organelles. These organisms range from unicellular protists to multicellular fungi, plants, and animals. In contrast, the domain Bacteria comprises entirely of single-celled prokaryotic organisms that do not have a nucleus. Instead, their genetic material freely floats within the cell, unbounded by a membrane. Bacteria have diverse lifestyles and can be found in nearly every environment on Earth, including some that are inhospitable to most other life forms. Additionally, bacterial cell walls are characterized by the presence of the polysaccharide peptidoglycan. To summarize, the significant differences between the domains Eukarya and Bacteria include cellular structure (presence or absence of a nucleus), complexity (single-celled vs multicellular), and the composition of their cell walls. The addition of the domain taxon is indicative of the constant evolution of scientific understanding, reflecting the fundamental differences discovered between various forms of life.
Related Questions
Which area of the brain is responsible for reasoning, judgment, planning, organization, and predicting future events?
A.Serotonin
B.thalamus
C.hippocampus
D.frontal lobe
Answers
Answer: D) Frontal Lobe
Use the drop-down menus to answer each question about rock formation.
Which type of rock is formed from molten materials?
Which type of rock needs weathering or erosion to form?
Answers
The type of rock that is formed from molten materials is known as igneous rock. While the type of rock that needs weathering or erosion to form is known as sedimentary rock.
What is Weathering?Weathering may be defined as a process through which numerous rocks and minerals found on the earth's surface are considerably broken down into smaller fragments. The process of weathering is facilitated by different components like water, wind, ice, etc.
On the other hand, Erosion is different from weathering. This is because erosion deals with the transportation of broken substances or materials through weathering from one place to another with the help of air and water.
It is the gradual destruction and elimination of rock or soil in a particular area. The sedimentary rocks evolved from the activities of erosion and weathering.
Therefore, igneous rocks are formed from molten materials, and sedimentary rocks are formed from weathering or erosion.
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Answer:
A and C
Explanation:
Igneous and Sedimentary
What is a 2-factor cross biology
Answers
Answer:
23 +34
Explanation:
because its math
Final answer:
A 2-factor cross in biology involves studying the inheritance pattern of two different traits in offspring. It helps determine whether the traits are inherited independently or if there is any linkage between them.
Explanation:
In biology, a 2-factor cross refers to a breeding experiment involving two factors or traits. This type of cross helps determine the inheritance pattern of two different traits in offspring. For example, if we are studying flower color and plant height in peas, a 2-factor cross would involve examining how these traits are inherited together in the offspring.
One example of a 2-factor cross is the dihybrid cross, which involves studying the inheritance of two different traits at the same time. This type of cross can help determine whether the two traits are inherited independently of each other or if there is any linkage between them.
Prokaryotes are found in
A)Eukarya only.
B)Bacteria only.
C)Archaea and Bacteria.
D)Archaea and Eukarya.
First answer gets brainlessness
Answers
Answer:
Prokaryotes are found in C) Archaea and Bacteria.
Explanation:
in which region do earthquakes, originate due to a transform boundary, most likely occur
Answers
Answer: ectonic earthquakes occur anywhere in the earth where there is sufficient stored elastic strain energy to drive fracture propagation along a fault plane. The sides of a fault move past each other smoothly and aseismically only if there are no irregularities or asperities along the fault surface that increase the frictional resistance. Most fault surfaces do have such asperities and this leads to a form of stick-slip behavior.
Explanation:
Answer:
Majority are found on the sea floors with two ocean ridges. Example of this is in California.
What's the relationship between the temperature and the density of a substance?
A) As the temperature decreases, the density decreases.
B) Temperature doesn't affect the density of a substance.
C) Temperature decreases the density of a substance only at high altitudes.
D) As the temperature increases, the density decreases.
Answers
Answer:
answer is a i think
Explanation:
Answer:
D
Explanation:
When you visit Grandma's apartment, she sets the temperature so high, you sweat every time you are there. The last time you visited her, you started to perspire as soon as you saw her house, before you even entered! This is an example of...
A) observational learning B) operant conditioning C) classical conditioning
Answers
Answer:
operant conditioning
Explanation:
Answer:
Operant
Explanation:
Multicellular organisms use cell division, mitosis, for growth and the maintenance and repair of cells and tissues. Single-celled organisms may use cell division as their method of reproduction. Regardless of the reason for mitosis, the process ensures genetic continuity. What is the step in the cell cycle that ensure genetic continuity?
A) B. DNA replication
B) D. Cytoplasmic division
C) B. Translation and transcription
D) C. Cell growth, preparing for mitosis
There are few cells in the body that do not undergo mitosis: most somatic cells divide regularly, some more than others. Take for example the cells that line the digestive tract. These cells must be frequently replaced because they are constantly eroded by the movement of food through the tract. What mechanism(s) is/are in place to ensure that these cells are exact copies of the mother cell?
A) DNA restriction point
B) DNA template plus DNA damage checkpoints
C) the template DNA provides for making copies
D) G0, quiescence checks for damage
Answers
For the second question the answer is B
The genetic material that is involved in a cell in order to maintain the genetic continuity along with the genetic diversity that is required for the inheritance to go on all lies in the cytoplasm. The correct answer is option B.
What is the genetic unit of inheritance ?Gene is the genetic unit of inheritance.
Multicellular organisms use cell division, mitosis, for growth and the maintenance and repair of cells and tissues. Single-celled organisms may use cell division as their method of reproduction. Regardless of the reason for mitosis, the process ensures genetic continuity that definitely is the cytoplasm where the genetic material and the genetic units all are present in the cytoplasm.
There are few cells in the body that do not undergo mitosis: most somatic cells divide regularly, some more than others. In this case the check points will help to check the DNA structure and the damage that is being done in the sequence in order to check that a;ll the bases are arranged properly or not.
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what do the effect of catalase on the decomposition of hydrogen peroxide
Answers
Catalase is an enzyme that accelerates the breakdown of hydrogen peroxide into water and oxygen in the body. This is a critical process because hydrogen peroxide is harmful to cells. The reaction is expedited by catalase, which acts as a catalyst, without being consumed or changed permanently.
Explanation:Catalase found in cells, particularly in peroxisomes, plays a crucial role in the decomposition of hydrogen peroxide (H₂O₂) into water (H₂O) and oxygen (O₂). This reaction is important because hydrogen peroxide is a potentially harmful byproduct of various metabolic processes in cells, and its buildup can be toxic. In the process, catalase acts as a catalyst, meaning that it speeds up the reaction without being used up or altered permanently. For example, if you put a piece of liver (which contains a lot of catalase) into hydrogen peroxide, you'll notice effervescence or bubbling. This bubbling is oxygen gas being produced from the decomposition of hydrogen peroxide by catalase.
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Please help with this question it is in the attachment below
It is just science not really biology just about continental drift.
Answers
Answer:
Q:what happens when a continent moves towards the poles?
A:The climate gradually gets colder and dryer
Explanation:
A leech fungus and algae living together Is mutualism, commensalism, or parasitism
Answers
PLEASE HELP Step 5: The blood then goes through the _______ side of the _________ to the ______________ It leaves the heart through the _________. Then the blood travels through the __________ releasing _________ to the cells for __________ and absorbs _________.The gas exchange occurring here between the oxygen and carbon dioxide molecules occurs in the _______ of the organs. The blood then goes back to the ________ side of the _________ through the veins and will go through the ________ again.
Answers
Answer:
The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle through the tricuspid valve.
The right ventricle pumps the oxygen-poor blood to the lungs through the pulmonary valve.
The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle through the mitral valve.
The left ventricle pumps the oxygen-rich blood through the aortic valve out to the rest of the body.
Having white wool (W) is dominant over having black wool (w). A homozygous dominant parent is crossed with a homozygous recessive parent. The Punnett square shows the possible genotypes of the offspring.
Each offspring will express a phenotype of
wool.
Answers
An allele is a variant form of the gene, which is present on the same loci of the chromosome as the gene. The allele can have different phenotypic characters.
In the given cross, the purebred dominant for the white wool with purebred recessive for black wool will result in 100% progeny with white wool.
The dominant alleles are those, which are expressed phenotypically in an organism, whereas the recessive allele is masked by dominant and can be expressed in purebred conditions.
In the given dominant for White wool and recessive black wool, the cross is represented in the attachment below.
The cross between purebred dominant for white and purebred recessive for black is:
WW x ww
Therefore, each offspring will exhibit white wool in heterozygous conditions.
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Answer:
white wool
Explanation:
What did the presence of photosynthetic prokaryotes allow
A. more oxygen to enter the atmosphere
B. more water to enter the atmosphere
C. more sunlight to enter the atmosphere
D. more hydrogen to enter the atmosphere
Answers
Answer:
A. more oxygen to enter the atmosphere
Explanation:
Photosynthesis is a metabolic process unique to the cells of autotrophic organisms, due to the possession of the CHLOROPHYLL pigments used in trapping light energy from the sun. Photosynthesis is the process of combining carbondioxide (CO2) and water (H2O) using energy of sunlight to produce glucose and release oxygen gas.
Based on the understanding of the photosynthetic process which is similar in all photosynthetic organisms including photosynthetic prokaryotes e.g. cyanobacteria, the presence of the photosynthetic PROKARYOTE will allow more oxygen in the atmosphere.
Note that, oxygen is released during photosynthesis.
7. EVALUATING METHODS Clean rooms used
for sterile biological research are sealed and
operate at slightly above atmospheric pressure.
Explain why.
Answers
Answer:
Clean rooms are used for biological research in order to prevent the research from contamination of other microorganisms.
Explanation:
Rooms were cleaned before any biological research in order to reduce the intervention of other microorganisms in the research and made the research proof from any impurities. These labs have high atmospheric pressure which decline the growth of microbes and the research will be done in a better way.
A-Attached earlobes
a-Unattached earlobes
If A is the allele for having attached earlobes, what percentage of offspring will have attached earlobes?
A. 25%
B. 50%
C. 75%
D. 100%
Answers
Answer:
50%
Explanation:
somebody come get her shes dancin like a...... oops my bad , cause i took 7.07 punnet quiz
question with the T's is
TT on top and Tt on botton
question 3 is bb on both squares and if it ask for precentage on that its 50%
Thank you!
please mark brainliest
50% of offspring will have attached earlobes as shown in the given Punnett Square. So, the correct option is B.
What is Punnett Square?Punnett square is indeed a graphical representation of the potential genotypes of an offspring that results from a certain mating event. The genetic make-up of the parents must be known in order to construct this graphical representation.
This square-shaped graphic is used to predict genotypes in breeding or cross experiments. In 1905, Reginald C. Punnett invented this method. This is used by biologists to determine the probability that a specialized gene will be passed on to progeny.
According to the Punnett Square, 50% of the offspring in the case above will have attached earlobes.
Therefore, the correct option is B.
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Explain why scientists believe the Abert’s and Kaibab squirrels are examples of speciation.
Answers
Answer:
The Abert’s squirrel is found on the south rim of the grand canyon and surrounding states.
The Kaibab squirrel can only be found at the north rim of the canyon.
Scientists believe they were separated by plateau erosion that separated the forests of the Grand Canyon, isolating the Kaibab population of squirrels.
Explanation:
Answer:
Kaibab squirrels became geographically isolated from Abert's squirrels, which are found on the south rim of the canyon. In isolation, Kaibab squirrel« evolved distinct characteristics, such as a complete whitetail. Abert's squirrels are the original species from which Kaibab squirrels diverged.
As the water crisis gets worse, which of the following does NOT increase?
A)The number of water consumers
B)The demand for water
C)The supply of clean water
D)The price of water
Answers
C) The supply of clean water.
The water crisis is because there's not enough clean water, mainly because the population is rising. Because demands are rising, prices rise as well so that water companies can make a profit.
Answer:
The supply of clean water
Identify these reaction energy diagrams as spontaneous or nonspontaneous.
Energy
A+B
Reaction Progression
spontaneous
nonspontaneous
Answers
Answer:
Explanation:
Answer: Spontaneous, nonspontaneous, spontaneous.
Explanation: edge 2024
Other than passing genes from parents to offspring, bacteria are also capable of injecting their genes directly into other bacteria. Using complete sentences, explain how this speeds up the process of evolution in bacteria.
Please I need this answered fast!
Answers
Answer: By injecting their genes into other bacteria, the receiving bacteria immediately has their DNA instead of having to wait months to create new bacteria. By having new genes, bacteria can be stronger to fight off anything that could harm it.
Explanation:
Bacteria use horizontal gene transfer, particularly conjugation, to rapidly acquire new DNA sequences from other bacteria, enabling faster adaptation and evolution, especially in rapidly changing environments like the presence of antibiotics.
Bacteria accelerate the process of evolution by using a mechanism called horizontal gene transfer, which allows them to acquire large DNA sequences from other bacteria in a single event. This mechanism includes processes such as conjugation, transformation, and transduction. Conjugation, specifically, involves the direct transfer of DNA from one bacterium to another via physical contact, enabling the recipient to acquire new genetic traits that can be beneficial for survival and adaptation, such as antibiotic resistance.
Compared to mutation, which occurs at a slower rate (10-6 to 10-9 per nucleotide per bacterial generation), horizontal gene transfer facilitates the rapid exchange of genetic material, allowing bacteria to quickly adapt to environmental changes. This is crucial when facing selective pressures or new environments, as it may confer an advantage for survival without the need for the lengthy process of mutation-based evolution. With the short generation time of bacteria, sometimes just a few minutes, combined with genetic recombination and a high mutation rate, the capacity for rapid evolution is significantly enhanced, making bacteria highly adaptable organisms.
Researchers studied a typical hardwood forest containing a variety of trees, other plant species, fungi, and animals. The atmospheric carbon dioxide concentrations around the forest were measured in the middle of the day. The carbon dioxide concentration was lowest right next to the forest and steadily increased as the researchers measured farther away from the forest. Explain how this observation supports the Law of Conservation of Mass.
Group of answer choices
The carbon released by animals through cellular respiration is used by the trees to create food necessary for growth and maintenance
The carbon released into the atmosphere by decaying organic matter is increases as you move further away from the forest.
The carbon released by plants through photosynthesis is quickly cycled through the cellular respiration of animals.
The amount of carbon burned by fossil fuels decreases further away from the forest.
Answers
Answer:
The carbon released by animals through cellular respiration is used by the trees to create food necessary for growth and maintenance.
Explanation:
Since the trees are using the Carbon to grow they end up absorbing most of it therefore the levels of carbon on the forest are a lot smaller in quantities.
During the process of respiration, carbon is released by animals which is used by the trees in the process of photosynthesis to produce food for itself.
The carbon released by animals through the process of cellular respiration is used by the trees in order to create food that is necessary for growth and maintenance of the plant itself and for other organisms living in that ecosystem.
In this way the plants clean the environment and reduces the concentration of carbondioxide gas in the environment so we can conclude that carbon that is produced by the animals can be used by the other organism for itself supports the law of conservation of mass.
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3- Which two statements describe the effect of smoking cigarettes?
Answers
Hi there!!
The answer is C.
The smoke from a cigarette can paralyze or even kill cilia!! Also, when smoking burns little holes in the lungs, the overabundant mucus gathers there. Bacteria and viruses get caught in these pools, causing the smoker to cough forcefully to attempt to remove the excess mucus.
Hope this helps!!
What is predation???
Answers
Answer:
The preying of one animal on others is predation.Answer:
DescriptionPredation is a biological interaction where one organism, the predator, kills and eats another organism, its prey. It is one of a family of common feeding behaviours that includes parasitism and micropredation and parasitoidism.
Explanation:
Most bacteria are harmful. True or False?
Answers
It is a small zone inside a larger ridge called Mariana Trench
Answers
4.) What can a Punnett Square be used to determine?*.
A the possible combinations of alleles in offspring
B what an offspring will look like
C the height of offspring
D genetic heritage
Answers
Answer:
A
Explanation:
thats literally all u do in a punnet square, then u can analyze the data
A Punnett Square is used in biology to determine the possible combinations of alleles in offspring from a genetic cross. However, it can't predict physical characteristics with certainty, or determine genetic heritage.
Explanation:A Punnett Square is a tool used in biology to predict the probability of specific genotypes and phenotypes in the offspring of a genetic cross. It's used to determine A the possible combinations of alleles in offspring. This means it can show the different ways alleles can combine from both parents to create various genetic traits in their offspring. For example, it could reveal the combinations for a gene related to eye color.
While the Punnett Square does provide possible genetic outcomes, it should be noted that it does not determine what an offspring will look like (B), the height of the offspring (C), or genetic heritage (D). These traits are influenced by both genetics and environmental factors, and while genetics can dictate possible outcomes, it cannot determine them with 100% certainty. Therefore, the Punnett Square focuses primarily on potential genetic combinations of alleles.
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will give BRAINLIEST
_______ is a learning tool used only by humans.
A.
Language
B.
Observation
C.
Experience
D.
all of these
Answers
Answer:
I think that the answer is A
Most members of the
kingdom feed by absorbing
nutrients from dead or decaying organisms.
A. Protist
B.Fungi
C. Animal
Answers
Pls help with these questions thanks in advance
Answers
Answer:
19C is round
Explanation:
Possible genotypes 19 a) Rr and rr, b)Round and wrinkled, c)50%, d)50 %. 20 e) pink, f) CrCr, CwCw, and CrCw, h) 50%, i) 0 j) 50% 21 l) 50% m)50%, m)50%.
19 a) The possible genotypes of the offspring are Rr and rr
b) The possible phenotypes of the offspring are Round and wrinkled.
c) The probability of having a round offspring is 50%.
d) the probability that an offspring is homozygous is 50 %.
20 e) If the red snapdragon is crossed with the white snapdragon then the phenotype of the offspring is pink.
f) The possible genotypes of the offspring are CrCr, CwCw, and CrCw, where w represents the white color and r represents the red color.
g) the punnet square is attached below.
h) the probability that an offspring is red-colored is 50%
i) the probability that an offspring is white-colored is 0.
j) the probability that an offspring is pink-colored is 50%.
21 k) The punnet square diagram is attached below.
l) Both parents have one allele for the sickle cell trait. So there is a 50 % chance that the offspring has a sickle cell condition.
m) the probability that the offspring is normal is 50%.
n) the probability that the offspring is having sickle cell disease is 50%
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Is it possible for a punnet square to have a heterozygous dominant / recessive? I have done my research but not able to find it. I think my teacher is tricking me, is it possible? Please help me, thank you!!!!!
Answers
Answer:
I'm not sure if I understand what you mean, but based on your question I think the answer is yes.
If the parents are homozygous dominant, and homozygous recessive, it would produce heterozygous dominant and recessive offspring.
If you used both parents as heterozygous, then approximately 50% of the offspring will be heterozygous as well.
I hope this helped!
Also, as a side note, if the offspring is heterozygous, it'll always show the dominant phenotype (unless it's incomplete or codominance)