Answer:
It cannot attach to the promoter.
Explanation:
just did test
If green is dominant over blue, then what is the genotype for this individual?
If green is dominant over blue, then for this individual then the genotypic ratio will be 1:2:1. This can be expressed by monohybrid cross by punnett square,
What is monohybrid cross?A monohybrid cross refers to the hybrid of two individuals with pure breed genotypes that result in the opposite phenotype for a specific genetic traits.
Monohybrid cross is used by scientist to observe how pure breed offspring express heterozygous genotypes which is inherited from their parents.
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Question 21 of 34
Why do water molecules "stick together"?
OA. The partially positive charge on the oxygen of one molecule
attracts the partially negative charge on the hydrogen of another.
B. The partially negative charges on the oxygen atoms of two
different water molecules are attracted to each other.
C. The partially positive charges on the hydrogen atoms of two
different water molecules are attracted to each other.
D. The partially negative charge on the oxygen of one molecule
answer B.the partially positive chargers on the oxygen atoms of two
Which of the following is NOT an advantage of having a glycocalyx (capsule or slime layer) for bacteria?a) Protects from phagocytosis.b) Allows bacteria to move through the environment.c) Allows bacteria to adhere to surfaces.d) Can serve as a nutrient/energy reserve.e) Protects from desiccation/dehydration.
Oogenesis produces _ viable cell/s, and spermatogenesis produces _ viable cell/s.
0 4.2
o 4.4
4.1
o 1.4
Oogenesis produces 1 viable cell and spermatogenesis produces 4 viable cells. Details about gametogenesis can be found below.
What is gametogenesis?Gametogenesis is the process by which gametes are produced. Gametogenesis consists of two processes namely;
OogenesisOogenesisSpermatogenesisOogenesis is the formation and development of an oocyte or ovum while spermatogenesis is the process of sperm production in the testes.
Oogenesis results in the formation of only one viable egg cell while spermatogenesis results in the formation of four spermatids.
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why morden cell are difficult to study compared to premative cell?
Answer:
coz the modern cells have a lot more complex structures which had evolved along time
15
Select the correct answer.
What's the role of oxygen in cellular respiration?
OA.
It accepts electrons and keeps the electron transport chain running.
B.
It breaks down carbon-based sugar molecules to release energy and forms carbon dioxide.
OC. It combines with hydrogen ions in sugar molecules to release energy and form water.
OD. It supplies electrons to the electron transport chain to keep it running.
The role of oxygen in cellular respiration is It accepts electrons and keeps the electron transport chain running.
What is Cellular respiration?Energy is the ability to perform a job or to produce heat. Chemical reactions involve a rearrangement of atoms between substances with rupture or formation of chemical bonds and this generates changes in the energy of the system.
An exothermic reaction is one where energy is released from the system into the environment in the form of heat.
Cellular respiration is carried out in the mitochondria of the cells. There the oxygen absorbed from the external environment is combined with carbohydrates (raw material) to release the chemical energy they contain. Water vapour and carbon dioxide are also released.
Thus, option "A" is correct.
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For bacterial cells, the cell envelope layer that lies just outside the plasma membrane is called the ___.
Answer:
For bacterial cells, the cell envelope layer that lies just outside the plasma membrane is called the "Cell Wall".
For bacterial cells, the cell envelope layer that lies just outside the plasma membrane is called the cell wall.
The cell wall is a rigid, protective layer that surrounds the plasma membrane of bacterial cells and provides structural support and shape to the cell. It is found in many prokaryotic cells, including bacteria, as well as in some archaea.
The main functions of the bacterial cell wall are as follows:
Structural support: The cell wall gives the bacterial cell its shape and prevents it from bursting or collapsing due to changes in osmotic pressure. It provides rigidity and strength to the cell, enabling it to maintain its structure and integrity.
Protection: The cell wall acts as a barrier and protects the bacterial cell from mechanical damage and the external environment. It helps shield the cell from harmful substances and provides some defense against the host immune system and certain antibiotics.
Permeability control: The cell wall regulates the movement of molecules into and out of the cell. While it allows some substances to pass through, it restricts the entry of larger molecules and certain toxins.
The composition of bacterial cell walls varies among different groups of bacteria. The two most common types of bacterial cell walls are:
In summary, the bacterial cell wall is an essential structure that maintains the shape and integrity of the cell, protects it from external threats, and controls the movement of substances in and out of the cell. Its composition and organization are critical factors that contribute to the characteristics and behavior of different bacterial species.
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Which element, along with other
inorganic and organic elements, is
especially important for chemotrophs
living near deep volcanic thermal vents
in the ocean?
A. Uranium
B. Helium
C. Sulfur
Sulfur is especially important for chemotrophs living near deep volcanic thermal vents in the ocean. Therefore, option C is correct.
What are chemotrophs?An organism is said to be a chemotroph if it uses the environment's electron donors to oxidize them for energy. They might be organic or inorganic molecules. In contrast to phototrophs, which use photons, chemotrophs employ chemicals. Both autotrophic and heterotrophic chemotrophs are possible.
Prokaryotic chemotrophic organisms, which comprise both bacteria and fungi, are the most prevalent type. For all of these species to exist and procreate, carbon is necessary.
Sulfur is especially important for chemotrophs living near deep volcanic thermal vents in the ocean. Therefore, option C is correct.
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Drag each item to the correct location to indicate whether it describes the American or European weather model. (2 points)
Answer:
America model weather can predict 16 days,
Explanation:
A woman living 25 years ago in a central African country contracted a highly contagious and fatal virus know as Ebola. Surprisingly, she recovered and is now immune from this strain
of Ebola. What type of immunity does this woman possess?
O Artificial active immunity
O Artificial passive immunity
Natural active immunity
O Natural passive immunity
an organism has a hapoloid number of 20. what is the organisms diploid number
What form of
decomposition
do
decomposers
perform?
A. mechanical
B. chemical
C. autotroph
The form of decomposition performed by decomposers is chemical. Details about decomposers can be found below.
What are decomposers?Decomposers are organisms that are capable of breaking down decaying or dead organic substances. Examples are fungi, bacteria.
Decomposers degrade the constituents of organic substances chemically by releasing enzymes to break them down.
Therefore, the form of decomposition performed by decomposers is chemical.
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Answer: Chemical
Explanation:
Investigate substances containing carbon or oxygen that relate to biological processes. Explain their main function in those processes.
Answer:
I hope this helps!!!1
Explanation:
Carbon and oxygen are independent of each other but are very closely connected as well as interdependent. The following article will cover information that will help you understand the carbon-oxygen cycle in detail.
Life on planet Earth continues due to the presence of organic as well as inorganic nutrients present in nature. These nutrients need to be continuously recycled. If this doesn’t happen, all the nutritive resources in the world will get extinguished completely. No nutrients means no life on Earmeano, for the life cycle of every living being, unicellular or multicellular organism to sustain, recycling the nutrients is very important. One of the important cycles is the carbon-oxygen cycle.
The Process of Carbon-Oxygen Cycle
There are four steps involved in the completion of this cycle. These methods are discussed below:
Photosynthesis
Plants undergo photosynthesis which helps them produce energy and food for themselves. During this process, plants take in carbon dioxide (CO2) and absorb water (H2O) with the help of their roots. The chlorophyll present in the leaves and the energy from the sun, help convert CO2 and H2O into Oxygen O2, sugar, and water vapor. Oxygen (O2) is released by plants as a by-product of the atmosphere.
Formula for Photosynthesis
CO2 + H2O + Light ———-> (CH2O) + O2
The carbon dioxide from air and water from the soil in presence of light (energy) is taken by the plants and converted into carbohydrates and oxygen as by-products.
Respiration
Just as plants carry out photosynthesis, animals carry out respiration. Respiration occurs when animals take in oxygen from the air along with simple sugars from their food. This helps in the release of carbon dioxide, water, and energy from the animal body. During cellular respiration, animals require O2 while inhalation. When they exhale the waste product of cellular respiration, they release CO2 into the atmosphere again.
Formula for Respiration
(CH2O) + O2 ———-> CO2 + H2O + Energy
The carbohydrates taken from food like plants or carbon-based compounds along with oxygen are converted to carbon dioxide which is released into the air along with water and energy during respiration.
Combustion
It is a process of burning that occurs naturally in nature. For example, volcanic eruptions are natural combustion processes where carbon dioxide is released into the atmosphere due to burning. Nowadays, many environmental pollutants cause an increase in the amount of CO2 in the air. These include cars, factories, burning of woods, coal, nuclear energy, gas, etc. This irresponsible combustion and release of excessive carbon dioxide and other harmful gases in the environment is the major contributing factor to today’s global warming.
Decomposition
After the death of any living organism, i.e., unicellular or multicellular organism, it gets decomposed. This decomposition means insects, fungi, and bacteria (together called decomposers), help in breaking down the cellular components of the dead organism into its basic elements. These elements include water, calcium, nitrogen, carbon, and oxygen. Thus, decomposers help in the release of oxygen and carbon dioxide back into the atmosphere as their metabolic waste products.
The entire cycle can be summarized as, plants taking in carbon dioxide and releasing oxygen during photosynthesis. This oxygen released is taken up by animals who release carbon dioxide after carrying out respiration. Thus, the recycling of carbon and oxygen in the atmosphere will continue as long as respiration and photosynthesis occur. This also proves that to sustain life, plants are very important as they are the major contributors to the amount of oxygen present in the atmosphere. Although both cycles occur independently, they are, in a small way, interconnected to each other.
The different processes where carbon and oxygen will combine and help in different biological process are combustion, photosynthesis and respiration.
What is biological process?
A biological process is the organism's genetically designed means of achieving a particular goal. The outcome or final state of biological processes is frequently used to characterize them, for example, the biological process of cell division produces two daughter cells (a divided cell) from a single parent cell.
A biological process is carried out by a specific collection of molecular operations performed by certain gene products (or macromolecular complexes), frequently in a highly controlled manner and in a specified temporal sequence. Oxygen and carbon used in many biological process such as photosynthesis.
Therefore, The different processes where carbon and oxygen will combine and help in different biological process are combustion, photosynthesis and respiration.
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Which statement accurately describes how the understanding of the Doppler effect is applied to the study of galaxies?
The Doppler effect, which is used to examine galaxies, tells us that a galaxy is approaching Earth through a redshift. hence option C(It indicates a galaxy moving toward Earth through red shift) is correct.
What do you mean by doppler's effect?Doppler effect, generated by the relative motion of the wave source and the observer, is the apparent difference between the frequency at which sound or light waves leave a source and that at which they reach an observer. Mössbauer effect, which uses this phenomenon in astronomical observations.
Galaxies are studied using the Doppler effect. Astronomers typically measure the light divergence towards the lower frequency, in the spectrum we look at the red region, to determine how quickly stars and galaxies are moving away from or towards us. As a result, it suggests that a galaxy is redshifting and approaching Earth.
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Most of the compounds that make up life contain the element:
Answer:
Carbon.
Explanation:
Carbon forms the basis for all life on Earth; indeed, life forms on Earth are referred to as carbon-based life forms, emphasizing the importance of this element for life. Carbon atoms readily bond to other atomic elements, such as oxygen and nitrogen.
Students in a physics classroom conduct the following activity
materials a glass, water, coins, food coloring
procedures
1. fill a glass with water until the water is level with the rim
2. add a little food coloring so the water is easier to see.
3. from a distance of about 2cm, slowly drop pennies edgewise into the glass. see how high the water rises without it spilling over
f
which property of water are the students testing?
The property of water that the students are testing is the density of water.
What is upthrust?
Upthrust or Buoyancy force, is an upward force exerted by a fluid that opposes the weight of a partially or fully immersed object.
F = ρVg
where;
ρ is density of the fluidV is volume of the object displacedg is acceleration due to gravity.Thus, the property of water that the students are testing is density of water because it opposes the weight of the pennies dropped into it.
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What is the function of the structure below which is part of a fungus
What controls differentiation? Choose the correct answer.What controls differentiation? Choose the correct answer.
1. Those who were successful in Round One did not survive equally well when others were
competing for food at the same dish during round two. Which beak was not successful and why?
Large beak will not be successful if the food is small in size because they can't eat that food.
Which beak was not successful and why?
Large beak was not successful if there is small sized food is present on the dish while on the other hand, if the dish has big sized food then the small beak can't survive the second round because they are unable to eat that food.
So we can conclude that big beak will not be successful if the food is small in size because they can't eat that food.
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The odds of expected outcomes of a physical characteristic in a particular breeding
Answer:
Probability is the term you seek.
how does the differences in shape between the long bones and flat bones contribute to their different functions
Answer:
It depends on its function and what it is holding
Desensitization is a cognitive phenomenon in which those exposed to violence tend to __________. a. behave more aggressively b. become numb to more violence c. see violence as exceptional d. savor violent iconography please select the best answer from the choices provided a b c d
Desensitization is a cognitive phenomenon in which those exposed to violence tend to become numb to more violence. Thus, the correct option is B.
What is Violence?Violence may be defined as an accomplishment of physical force that causes or is planned to cause harm, damage, or kill someone.
Therefore, the correct option for this question is B.
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T.L.E subject
____ 2. is a method where in the scion or top portion of the plant is joined with or inserted into the rootstock of another plant, to make them grow together
____ 3. In this method, a single bud is forced to grow on the stock.
____ 4. A methods that allow the stem ton develop roots while still attached on the mother plant.
A. Budding
C. Grafting
D. Planting
Which two respiratory infections are caused by viruses?.
Respiratory infections caused by viruses are as follows:--
influenza virus, respiratory syncytial virus, parainfluenza viruses, bocaviruses, metapneumovirus, rhinovirus, coronaviruses, adenoviruses
Why is this discovery important to evolutionary biologists?
The discovery is not specified here but evolutionary biologists are professionals who work to discover descendence relationships between organisms.
Who are evolutionary biologists?Evolutionary biologists are biology professionals who work to find evolutionary (ancestor-descendant) relationships between organisms.
The work of evolutionary biologists is fundamental for understanding the associations in a given taxonomic group.
In conclusion, the discovery is not specified here but evolutionary biologists are professionals who work to discover descendence relationships between organisms.
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Explanation:
The discovery might aid research into how contemporary species, like penguins, have evolved.
What are the characteristics of natural source
Answer:
Explanation:
land, water, soil, plant, animals and minerals, especially, fossil fuels, coal, etc
What are the three techniques scientists can
use for correlation ? (fossils)
A father weighs 100kg and is running at a velocity of 4 m/s. What is the fathers kinetic energy?
Answer:
400 J
Explanation:
Formula :
Kinetic Energy (KE) = 1/2 x mass (m) x velocity² (v²)Solving :
KE = 1/2 x 100 x (4)²KE = 50 x 16KE = 400 J800J
Explanation:
we know,
k.E=(1/2)mv^2
=(1/2)100×4×4
800J
When humans plant more trees, carbon can begin entering the _______________ as carbon dioxide.
Answer:
Hydrosphere, geosphere or biosphere
Explanation:
Please help me - fill in the blank
Answer:
carbon dioxide, 16.4% of oxygen, and 4.4% of carbon dioxide, nasal cavities (or oral cavity) > pharynx > trachea > primary bronchi (right & left) > secondary bronchi > tertiary bronchi > bronchioles > alveoli,
Explanation: