The proteins expressed and the genes activated makes one cell a brain cell and another skin cell.
Gene expression is the process through which a gene's information is used to create a functioning gene product, allowing it to produce end products like proteins or non-coding RNA and ultimately have an impact on phenotypes. However, in non-protein-coding genes like transfer RNA (tRNA) and small nuclear RNA (snRNA), the end result is a functional non-coding RNA instead of a protein.
Gene expression alterations lead to cell differentiation. This happens when various environmental signaling molecules activate or repress certain transcription factors that are required to express particular genes in the DNA. Inside of cells, DNA is arranged into chromosomes. Chromosomes have several genes.
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People who live in rural communities (country side) impact the ocean.
A
True
B
False
The stomach is the only part of the alimentary canal with three muscular layers. Why does the stomach need three layers of muscle
The stomach is the only part of the alimentary canal with three muscular layers. The stomach need three layers of muscle for digestion through peristalsis.
The stomach is a part of the body that includes the entire abdominal cavity which consists of the digestive tract and accessory organs, the urinary system, and the spleen. There are three layers of muscles in the stomach, namely the outer longitudinal muscles, the middle circular muscles, and the inner oblique muscles which help in peristaltic events.
Peristalsis is a movement in the form of muscle contractions in the digestive tract that pushes and stirs food so that it is digested. Through peristalsis the stomach will break down food and absorb nutrients during the digestive process.
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Study the image.
The numbers 1 through 12 are placed around the Earth like a clock. The moon is to the left of number 4.
With the full moon at position 3, which two positions experience low tide?
3 and 5
5 and 9
6 and 12
9 and 12
Answer: The answer is 6-12
Explanation:
Lookedd up on brainly :P
Answer: The answer is 6 and 12
Explanation: I did the test! :D
In general, the biological species concept classifies organisms as a
species.if they
O mate together successfully in nature.
O they share a common ancestor.
O have the same number of chromosomes.
O live in the same habitat and have a similar ecological role.
Answer:
mate together successfully in nature.
Explanation:
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The inheritance of short wings in Drosophila fruit flies is an X-linked, recessive trait. Which would most likely result it a short-winged female mates with a long-winged male? SC. 912. L. 16. 1
оооо
All offspring will be short-winged
All females will be long-winged, and all males will be short-winged
All females will be short-winged, and all males will be long-winged
o Half of the males and females will be short-winged, and half will be long-winged
The result of a short-winged female mate with a long-winged male is all females will be long-winged, and all males will be short-winged.
Thus, the correct answer is B.
What is X-linked recessive inheritance?X-linked recessive inheritаnce is а wаy а genetic trаit or condition cаn be pаssed down from pаrent to child through mutаtions (chаnges) in а gene on the X chromosome. In mаles (who only hаve one X chromosome), а mutаtion in the copy of the gene on the single X chromosome cаuses the condition. Femаles (who hаve two X chromosomes) must hаve а mutаtion on both X chromosomes in order to be аffected with the condition.
If only the male or the female hаs the mutаted X-linked gene, the children аre usuаlly not аffected аnd аre cаlled cаrriers becаuse one of their X chromosomes hаs the mutаtion but the other one is normаl. Sons will be аffected if they inherit the mutаted X-linked gene from their females. Males cаnnot pаss X-linked recessive conditions to their sons.
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Which of the following sets of biomes is placed in order from
most to least biologically diverse?
O Boreal forest, woodland/shrubland, tropical seasonal
forest
O Tropical rain forest, temperate seasonal forest, tundra
O Subtropical desert, temperate seasonal forest, tropical rain
forest
O Tundra, woodland/shrubland, subtropical desert
Biomes are areas with distinct climates and distinct ecosystems, characterized by certain plants and animals. The biological diversity of a biome is determined by the number and variety of organisms found there.
The following sets of biomes are placed in order from most to least biologically diverse:
Tropical Rainforest - This biome is characterized by a warm and wet climate, and is home to a wide variety of plants and animals. The dense forests and high humidity make this biome the most biologically diverse of the sets listed.
Temperate Seasonal Forest - These forests typically have four distinct seasons and are home to a wide variety of animals and plants, though not as varied as the tropical rainforest.
Woodland/Shrubland - This biome is characterized by shrubby vegetation and temperate climates. While there is a wide variety of plants and animals found in this biome, it is not as biologically diverse as the other biomes listed.
Subtropical Desert - This biome is characterized by hot, dry climates and sparse vegetation. There are a few species of plants and animals that can survive in this environment, but overall there is less biological diversity than in the other biomes.
Tundra - This biome is characterized by cold climates and low levels of vegetation. Few species of plants and animals can survive in this environment, and so it is the least biologically diverse of the sets listed.
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What is a vector?
A.) A quantity that has both mass and speed
B.) A quantity that has both size and direction
C.)A quantity that has both speed and direction HELP ASAP!
As I think Option C is the best one.
what is the basic unit of structure and function in a living thing called?
Answer:
cells
Explanation:
cells makeup every single living thing on Earth including us humans they are the main structure of every human thing on earth will every living thing on Earth including us humans
Which of these statements about the
Sun is TRUE?
A. It is the the farthest star from Earth
B. It cannot be seen from Earth.
C. It is the closest star to the Earth.
Answer: C it is the closest start to earth
Explanation:
A direct smear from a nasopharyngeal swab stained with Loeffler methylene blue stain showed various letter shapes and deep blue, metachromatic granules. The most likely identification is:
A. Corynebacterium spp.
B. Nocardia spp.
C. Listeria spp.
D. Gardnerella spp.
The identification from a direct smear from a nasopharyngeal swab stained with Loeffler methylene blue stain showed various letter shapes and deep blue, metachromatic granules: Corynebacterium spp.
Thus, the correct answer is D.
Lаborаtory tests from direct exаminаtion of swаbs or blood smeаr of Corynebacterium spp. are
Swаbs should be tаken from involved аreа of nаsophаrynx аnd, if present, underneаth membrаnesGrаm stаining will show grаm-positive rods with pleomorphic morphology. Mаny species аre club shаped and mаy be аrrаnged in pаlisаdes or v-shаped аrrаngements.Neisser or Loeffler methylene blue stаining demonstrаtes metаchromаtic grаnules (limited sensitivity)For more information about nasopharyngeal swab refers to the link: https://brainly.com/question/29819432
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Neon (Ne) is right after fluorine (F) on the periodic table and directly above Argon (Ar). What element does Neon share more similar properties with, fluorine or Argon? Be sure to use claim, evidence and reasoning in your answer.
Answer: Argon
Explanation: They both have their outer electron shell filled, so they have no tendency to acquire or lose an electron. Therefore, they are very unreactive, a reason they are also called inert gases.
The answer is Argon as Neon shares more similar properties with it.
The similarities between them are that they both have the outer electrons shell filled and have a tendency to gain or lose electrons.
Why are the Neon and argon are in the same group?As they have the same atomic no. and same electron no. in the outer shell of their valence shells.
Thus it is clear that due to similarities between the electrons in them they are showing similar characteristics.
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what are some negative side effects of artificial selection on corn, watermelon and peaches?
Answer:
It may lead to a lack of variety in the species.
Genetic mutations are still going to occur.
There is no guarantee that the desired traits will pass to them.
It can create genetic bottlenecks.
There may be evolutionary changes that harm both plants and the planet.
Artificial selection can even affect plants or animals outside of the intended effort.
Explanation:
hope this helps!
Which statement best describes the distribution of
resources around the earth?
Please help me :(
Answer:
Resource distribution refers to the geographic occurrence of resources on earth. In other words, where resources are located. Any particular place may be rich in the resources people desire and poor in others. As a result, resources are distributed unevenly across the globe.
Explanation:
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Which feature of bacteria makes them useful in genetic engineering?
O Lack of a nucleus
O one large chromosome
O Replicating plasmids
O free-floating ribosomes
In a certain specles, brown eyes are dominant to blue eyes. A male is heterozygous for the brown eye (B) gene and a female with blue eyes (b) have two children with brown eyes. What is the probability that their next child will have blue eyes?"
1. Why are asteroids, comets, and meteoroids not classified as planets?
Answer: Asteroids were not considered planets because they are too small and numerous. ... Eight planets still satisfy the more rigorous definition of “planet” — a large object with an orbit that is fairly circular and within the plane of the solar system.
Explanation:
A scale drawing of a car is shown below. The numbers indicate the measurements of the actual size of the car.
In which of the following units are the measurements most likely expressed?
a. kilometers (km)
b. millimeters (mm)
c. milliliters (ml)
d. grams (9)
Answer:
scale 1:30 or 130, and the answer is kilometers A
Suggest how a platypus adapt to its habitat
Explanation:
Platypus is well adapted for semi-aquatic lifestyle. Its streamline body and a broad, flat tail are covered with dense waterproof fur, which provides excellent thermal insulation. ... The Platypus uses its tail for storage of fat reserves and the strong claws on its feet for burrowing and moving on land.
so just how did pattern on a giraffe's body increases his chances of survival
Answer:
survival of young giraffes is related to spot pattern, which might help provide camouflage from predators. ... This study revealed that newborn giraffes with larger spots and irregularly-shaped spots had increased survival during the first few months of life.
Explanation:
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Once organisms die, their organic remains are decomposed. If they are left under the earth with heat and pressure for millions of years they can become fossil fuels. What are three examples of these?
Answer:
Three examples of fossil fuels are:
1). Petroleum
2). Coal
3). Natural gas
The principle of unity relates to which of the following?
O Rhythm
O Dominance
O Fragrance
O All components contribute
What is the effect of changing the environment on the feeding of birds with different beaks?
The exact traits of each bird's beak and the type of environmental alteration will determine how changing the environment will affect how various beaked birds eat.
For instance, birds with long, narrow beaks designed for digging deeply into blossoms or grabbing insects may have a tougher difficulty locating food if the environment gets drier and food sources become limited.
Their population might decrease as a result of this. Similarly to this, birds with short, broad beaks that are evolved to split apart seeds may have a tougher difficulty locating food if the environment becomes wetter and food sources become limited.
On the other hand, if the environment changes in a way that creates new food sources, birds with beaks adapted to exploit those resources may do well. For example, if a new type of berry becomes available, birds with beaks adapted for eating berries may thrive in that environment.
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An ecosystem that offers many different niches
A. cannot support very many species at once.
B. can support many different species.
C. usually only supports insect life.
D. supports animal life but not plant life.
please help
Answer:
B. Can support many different species.
Explanation:
A niche is a position or role that a species plays in its ecological community or ecosystem.
If an ecosystem offers many different niches, this means that many different species can have a role in an ecosystem.
An ecosystem with many different niches will have a greater biodiversity and will also be more stable.
So, the correct answer is B. Can support many different species.
Innovative ideas may someday lead to a new way of addressing significant marine issues. Which of the following should be considered when evaluating the costs and benefits of a new innovative process?
Cost to build
Effort and time to implement
Maintenance and recurring costs
A. I and II only
B. I and III only
C. II and III only
D. I, II, and III
Which of the following factors would best contribute to a measurement of environmental quality?
A. Average temperature
B. Water clarity
C. Salinity levels
D. Average speed of sound
Two new products are competing for grant money, with the goal of cleaning up the marine environment. Each product removes plastic from the ocean.
Product 1 can be used in the open ocean and requires monitoring once every three months to retrieve collected plastic.
Product 2 is designed to be used in harbors and marinas and requires monitoring once per week to retrieve collected plastic.
If all other costs and benefits are equal, which of these products would you recommend for the grant?
A. Product 1 because it requires less monitoring, reducing the overall cost
B. Product 1 because it is presumed to be more effective at removing plastic
C. Product 2 because it would provide more job opportunities for local people
D. Product 2 because it would probably last longer in marinas than in the open ocean
Which of the following best describes the relationship between human population size and resource use?
A. Countries with high populations are likely to use more resources.
B. Countries with high populations are likely to use fewer resources.
C. Countries with low populations are likely to use more resources.
D. There is no correlation between population size and resource use.
Answer: See explanation
Explanation:
1. The factors that should be considered when evaluating the costs and benefits of a new innovative process include the cost to build, the effort and time to implement and the maintenance and recurring costs. Therefore, the correct options is D. I, II and III.
2. The factors that will contribute to a measurement of environmental quality is the Salinity levels. Therefore, the correct option is C.
3. If all the other costs and benefits are equal, then the product that will be recommended will be option A "Product 1 because it requires less monitoring, reducing the overall cost"
Since Product 1 requires monitoring once in three months while Product 2 requires monitoring once every week, then we can deduce that product 2 will increase the overall cost.
4. The option that describes the relationship between human population size and resource use is option A "Countries with high populations are likely to use more resources".
When there's an increase in population, the people will make use of more resources when compared to an area with lesser population. Therefore, the correct option is A
Plz help! In a density-dependent population, a decrease in which of the following will most likely cause an increase in birthrate?
Carrying capacity
Death rate
Emigration
Immigration
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In a density-dependent population, a decrease in the death rate will most likely cause an increase in birthrate. It is because a lower death rate means that more individuals are surviving, which can lead to an increase in the number of individuals reproducing, ultimately resulting in a higher birthrate. The correct option is B.
What is a density-dependent population?As we know that a population's birthrate tends to increase if there is a decrease in death rate, which also results in a decrease in carrying capacity.
Also, a density-dependent population is a population where the death rate increases and birthrate decreases with increasing population density, and vice versa. So, a decrease in the death rate of a density-dependent population will most likely cause an increase in the birthrate.
A density-dependent population is a population where the death rate increases and birthrate decreases with increasing population density, and vice versa. A decrease in the death rate of a density-dependent population will most likely cause an increase in the birthrate.
Therefore, the correct option is B.
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symbiosis and species interactions keystone webquest answer key
These exchanges are frequently brief. However, there are many instances where two species coexist peacefully for extended periods of time.
What is keystone species?The most numerous species in a community are known as dominant species, and they have a significant impact on the abundance and distribution of other species.
Keystone species, on the other hand, have an impact on communities that greatly outweigh their abundance.
These discussions are typically can be done in many way. Two species can, however, frequently cohabit happily for long periods of time.
Such relationships are known as symbioses ("living together"). Symbiotic relationships can be classified as parasitic, commensal, or mutualistic.
Thus, this can be symbiosis and species interactions.
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Which of the following biomolecules does not build polymers from monomers?
Carbohydrates
Proteins
Lipids
Nucleic Acids
Other:
Answer:
Nucleic Acids
Explanation:
A student illustrates a process of cell division by creating a series of models, as shown here. Which description should the student include with the model to make it more informative and accurate?
The process of cell division is an ordered series of events involving cell growth and that produces two new daughter cells.
What stage or phase of the cell cycle does the chromosomal alignment in the centre of the cell relate to?All of the chromosomes are aligned in the metaphase plate, also known as the equatorial plane, which is situated halfway between the cell's two poles.
What distinguishes meiosis from mitosis?For somatic cells and the asexual reproduction of unicellular eukaryotic cells, mitosis is a type of cell division. The form of cell division known as meiosis is used to produce gametes during sexual reproduction.
A non-dividing cell is characteristic of which stage of the cell cycle?The interphase, which can be divided into two stages: the first gap (G1) between the final mitosis and the DNA-synthesising S phase and the second gap (G2) between the end of the S phase and the subsequent mitosis, is the time when the cell is not actively dividing (M).
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I need this answered for me please I can't get it and all together its worth 40 points
Which of the following is a non metal that remains liquid at room temperature?
A. Phosphorous
B. Bromine
C. Chlorine
D. Helium
Answer:
B. BromineExplanation:
Bromine is the only non-metal which is liquid at room temperature.
Answer:
B
Explanation:
B. Bromine is a non-metal that remains liquid at room temperature.
It is a halogen, with the atomic number 35, and its chemical symbol is Br.
It is a highly reactive element and is typically stored in sealed containers to prevent evaporation. It is reddish-brown in color and has a strong, unpleasant odor. At room temperature, bromine is a dense liquid that is denser than water.