uhhh...help im dum
tyyyyyy

Answer:

Los glaciares y los casquetes polares son las principales reservas de agua dulce en el planeta y por ello el principal seguro que poseen los ecosistemas y las comunidades humanas para su subsistencia.

Answer:

B - 6 picograms

Explanation:

When a cell divides mitotically, the end result is 2 identical daughter cells. With that being said, the cell that is produced will also have the same amount of DNA and, therefore, the same DNA mass of 6 picograms.

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Blood pressure is the force exerted on the heart as the right ventricle contracts. Blood pressure is a measure of the force at which blood flows through the vessels that circulate blood throughout the body.

When blood pressure is taken, it reflects two numbers that relate to systolic and diastolic pressure. Systolic pressure, which is the first number, is the force exerted on the heart as the right ventricle contracts to force blood out of the heart. Diastolic pressure, which is the second number, represents the pressure in the blood vessels as the heart relaxes between beats. Blood pressure is equal to cardiac output divided by peripheral vascular resistance, which is a false statement.

Rather, cardiac output is one factor that can affect blood pressure, but it is not equal to blood pressure itself. On the other hand, peripheral vascular resistance refers to the amount of resistance that the blood vessels provide to blood flow, and it is another factor that can influence blood pressure. Blood pressure has a direct effect on the perfusion of the body's tissues, which is a true statement. If blood pressure is too high or too low, the tissues of the body may not receive adequate perfusion, which can lead to damage or dysfunction. Therefore, blood pressure is an important parameter to monitor during medical assessment and treatment.

Finally, blood pressure is one of the vital signs that is commonly measured during an initial assessment, along with heart rate, respiratory rate, and temperature. While blood pressure is not the single most important sign, it is an essential aspect of evaluating a patient's health status. Other factors that can influence blood pressure include hydration, stress, medications, and underlying medical conditions.

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The components involved with ER transport matched with the appropriate cellular location is as follows:

1. signal-recognition signal - A. cytosol

2. protein translocator - C. ER membrane

3. mRNA - A. cytosol

4. SRP receptor - C. ER membrane

5. active site of signal peptidase - B. ER lumen

1. Signal-recognition signal (SRS) - located in the cytosol, it is responsible for recognizing and binding to the signal sequence on newly synthesized proteins.

2. Protein translocator - located in the ER membrane, it facilitates the movement of newly synthesized proteins from the cytosol to the ER lumen.

3. mRNA - located in the cytosol, it serves as the template for protein synthesis.

4. SRP receptor - located in the ER membrane, it binds to the signal recognition particle (SRP) and facilitates the transfer of the protein to the protein translocator.

5. Active site of signal peptidase - located in the ER lumen, it cleaves the signal sequence from the newly synthesized protein.

In summary, the components located in the A. cytosol are 1. signal-recognition signal and 3. mRNA. The components located in the B. ER lumen is the 5. active site of signal peptidase. Lastly, the components located in the C. ER membrane are 2. protein translocator and 4. SRP receptor.

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Answer:

D. bronze is made of metals copper and tin.

Explanation:

an alloy is a material that is a mixture of two or more metals

Explanation:

Los fósiles se forman a través de varios tipos de fosilización: mineralización, carbonización, momificación, y fundición y moldes. El proceso más común es el de mineralización, en el que los minerales de aguas subterráneas se filtran en las partes duras del organismo, como huesos y conchas, y los petrifican o los convierten en piedra.

The statement "adaptations cannot be passed along to later generations" is not part of the theory of evolution by natural selection.

It is observed that one of the central concepts of the theory of evolution is that adaptations, which are beneficial traits that help organisms survive and reproduce in their environment, can be passed on to later generations.

According to the theory of evolution by natural selection, individuals within a population vary in their heritable traits. These variations can be advantageous, disadvantageous, or neutral in relation to the environment. The environment selects individuals with traits that provide a reproductive advantage, allowing them to survive and reproduce more successfully than individuals with less favorable traits.

Over time, through the process of natural selection, individuals with advantageous traits are more likely to pass on their genetic material to future generations. This results in a gradual accumulation of adaptations within a population as beneficial traits become more prevalent over successive generations.

So, the theory of evolution by natural selection supports the idea that adaptations can be passed along to later generations. This is a key mechanism through which species evolve and adapt to their changing environments.

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1. True 2. True 3. Scientific investigation is characterized by a good theoretical base and a sound methodological design. These characteristics are both related to the  Option a. Rigor

True - A critical review of the literature is necessary in nearly all research projects. It helps researchers understand the existing knowledge and gaps in the field, identify relevant theories and methodologies, and build upon previous studies.

True - Objectivity and parsimony are both related to the rigor of an investigation. Objectivity refers to the impartiality and lack of bias in conducting and interpreting the research, while parsimony refers to the principle of simplicity in explaining phenomena or choosing the most straightforward explanation. Both objectivity and parsimony contribute to the rigor of a scientific investigation.

a. Rigor - Scientific investigation is characterized by a good theoretical base and a sound methodological design. These characteristics are both related to the rigor of the investigation. Rigor refers to the thoroughness, precision, and reliability of the research process, including the theoretical underpinnings and the robustness of the methods employed.

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The correct question is:

1. A critical review of the literature is necessary in nearly all research projects.

True

False

2. Objectivity and parsimony are both related to the rigor of an investigation?

True

False

3. Scientific investigation is characterized by a good theoretical base and a sound methodological design. These characteristics are both related to the of the investigation What must be filled on the line?

a. Rigor

b. Precision and confidence.

c. Objectivity

d. Parsimony..

There are three kinds of cool-season grasses that are mostly used for football fields: Tall rescue, perennial rye grass, . In the South,Bermuda grass is the most normally involved grass for football fields.

2) Games 1, 2, 6, and 7 will be played in Houston. In the 2021 NLCS, Atlanta, the NL East champion, had home field advantage over Los Angeles, the Wild Card team, despite the Dodgers having an 18-game lead in the standings. Prior to the World Series, a Wild Card team cannot have home-field advantage over a division winner.

3) In contrast to all other major sports, baseball allows for a variety of field sizes during play. As a result, it stands to reason that the various-sized playing fields are covered in a variety of grasses and combinations of grasses. Since 2010, all but two major league ballparks have been covered in "natural" grass. "Natural" refers to the actual grass, which is typically very scientifically engineered.

As a result, an unprecedented 28 ballparks have been covered in the surface of choice for nearly all players and fans. The list of which fields are covered is followed by a detailed description on this page. This was the result of extensive research into the kind of sod or turf that was installed on the ground of all 30 ballparks. The decisions for each are by and large in light of ecological variables.

4) There are two main factors that determine how far a baseball travels: the ball's velocity and the angle at which it leaves the bat. The pitch's speed and the bat's speed both influence the ball's speed.

5)Synthetic turf demolishes normal grass in each classification. Compared to natural grass, artificial grass is less expensive, looks better, and is better for the environment. However long you have your turf expertly introduced, it will fulfill you for quite a long time.

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Answer:

The answer is B: The projections increase the surface area-to-volume ratio of the cell, which allows for more efficient nutrient exchange with the environment.

Explanation:

These finger-like projections, also known as microvilli, are commonly found in cells that are actively involved in absorption or secretion, such as the kidney cells in this scenario. They significantly increase the surface area of the cell, thereby allowing more transport proteins to be embedded in the cell membrane and facilitating more efficient exchange of molecules between the cell and its environment. This increase in surface area doesn't significantly affect the volume of the cell, so it doesn't considerably increase the metabolic needs of the cell.

Therefore, these projections do not primarily increase the volume of the cell (option A), the speed of individual molecule movement (option C), or the selectivity of the membrane by limiting the number of transport proteins (option D). Instead, they enhance the cell's capacity for molecular exchange by increasing its surface area.

The situation that will lead to an increase in Brainy transcription is a mutation in the Nerd gene that produces a protein that cannot be phosphorylated by PKA. Option C is correct.

PKA activation is essential for phosphorylating the transcriptional regulator Nerd, which in turn activates the transcription of the Brainy gene. Therefore, if there is a mutation in the Nerd gene that produces a protein unable to be phosphorylated by PKA, it would disrupt the activation of Nerd and impair its ability to initiate Brainy gene transcription.

In contrast, the other options mentioned, such as mutations in adenylyl cyclase, PKA nuclear import sequence, or CAMP phosphodiesterase, would likely interfere with the cAMP-dependent signaling pathway or PKA activation itself, potentially leading to decreased PKA activity and subsequent effects on Brainy transcription. Option C is correct.

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The complete question is:

You are interested in how cyclic-AMP-dependent protein kinase A (PKA) functions to affect learning and memory, and you decide to study its function in the brain. It is known that, in the cells you are studying, PKA works via a signal transduction pathway like the one depicted in the figure to the right. Furthermore, it is also known that activated PKA phosphorylates the transcriptional regulator called Nerd that then activates transcription of the gene Brainy. Which situation described below will lead to an increase in Brainy transcription?

A. a mutation in the gene that encodes adenylyl cyclase that renders the enzyme unable to interact with the a subunit of the G protein

B. a mutation in the nuclear import sequence of PKA that makes it hydrophilic

C. a mutation in the Nerd gene that produces a protein that cannot be phosphorylated by PKA

D. a mutation in the gene that encodes CAMP phosphodiesterase that makes the enzyme inactive

Because of their ability to significantly impact and transform their habitat, elephants are considered a keystone species.

Elephants play a crucial role in maintaining the ecological balance of their environment. As large herbivores, they have a massive appetite and require a substantial amount of food each day. In the process of foraging, elephants can cause extensive damage to trees and vegetation, including uprooting and breaking them down. This disruptive behavior leads to the creation of open spaces and clearings within forests, transforming dense forests into more open plains or grasslands.

The transition from a forest to a plain or grassland has profound implications for the ecosystem. It allows for the growth of grasses and other vegetation preferred by grazing animals, creating new habitats and increasing biodiversity. The open spaces created by elephants also facilitate the movement of other animals and support a greater variety of species.

By shaping their environment through their feeding and browsing habits, elephants act as ecosystem engineers, influencing the structure and composition of plant communities. Their role as a keystone species demonstrates the interconnectedness of species within an ecosystem and the significant impact that certain animals can have on shaping and maintaining habitat diversity.

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Answer:

Radiation is energy that comes from a source and travels through space at the speed of light. This energy has an electric field and a magnetic field associated with it, and has wave-like properties

Explanation:

The sacrum, a part of the axial skeleton, joins with the hip bones of the appendicular skeleton.

The sacrum is a large triangular bone located at the base of the spine and is formed by the fusion of five sacral vertebrae. It is part of the axial skeleton, which includes the skull, vertebral column, and ribcage. The sacrum articulates with the hip bones (ilium) of the appendicular skeleton, thus forming the sacroiliac joints.

The sacrum is a strong and stable bone that helps to transfer weight and forces from the axial skeleton to the legs and feet through the hip bones. The sacroiliac joint is a synovial joint that allows for a small amount of movement between the sacrum and the hip bones and is essential for activities like walking, running, and jumping. This joint plays a crucial role in transferring the weight of upper body parts to the lower limbs.

Therefore, "sacrum" is the correct option.

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Answer:

The function of a plant cell that contains many chloroplasts is conducting photosynthesis.

isn't coming income so that

1. Culling of animal species for population management can create a conflict between wildlife conservation and animal ethics or welfare.

2. Urban spaces have value as conservation areas for biodiversity, providing habitats for adaptable species. However, challenges like habitat fragmentation and pollution need to be addressed.

1. The practice of culling involves selectively killing animals to manage populations or prevent ecological damage. While it is a conservation approach, it conflicts with animal ethics and welfare concerns. The debate revolves around balancing the need for population control with compassion for individual animals.

2. Urban spaces can support biodiversity by offering habitats for various species. However, these spaces come with challenges such as habitat fragmentation, pollution, and competition with human activities. Efforts should focus on minimizing these challenges and creating suitable urban environments for species to thrive.

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The change that results is Uracil will base pair with adenine, resulting in a thymine-to-adenine base pair in the replicated DNA after DNA replication. Therefore, the correct option is B.

DNA replication is referred to as a biological process in which copies of DNA are formed which are termed as replicas during the cell division.

In the problem given here, we know that uracil normally pairs with adenine in RNA, and not in DNA, where thymine normally pairs with adenine. However, if uracil is present in DNA due to a mutation, it can base pair with adenine during DNA replication instead of the normal thymine-adenine base pair. This results in a cytosine-to-thymine base pair change in the replicated DNA, which is a common type of mutation. Therefore, the correct option is B.

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The question is incomplete, but most probably the complete question is,

A certain type of mutation converts the base cytosine into uracil. If this mutation is not repaired when the DNA replicates, as shown in the diagram, which of the following changes is most likely to result?

A. An uracil will be replaced with cytosine in the replicated DNA because uracil is in RNA and not DNA.

B. Uracil will base pair with adenine, resulting in a thymine-to-adenine base pair in the replicated DNA.

C. The DNA will become single stranded because uracil cannot base pair with adenine or guanine.

D. The DNA will no longer encode a protein because uracil is not recognized by ribosomes during protein synthesis.

Vascular system.

Phototropisms are caused by an unequal distribution of auxin. This makes the plant grow either towards or away from the light, depending on which part of the plant receives the light.

In a stem, the cells on the shaded side contain more auxin and grow longer than the cells on the light side. This causes the stem to grow towards the light. It is vital to note that the plant does NOT bend towards the light.

Phototropisms are a result of an unequal distribution of auxin. This makes the plant develop both in the direction of or far from the mild, relying on which part of the plant gets the mild.

In a stem, the cells at the shaded aspect comprise greater auxin and develop longer than the cells at the mild aspect. This reasons the stem to develop in the direction of the mild. It is crucial to be aware that the plant does NOT bend in the direction of the mild.

Auxins are a category of plant hormones (or plant-boom regulators) with a few morphogen-like characteristics. Auxins play a cardinal position in the coordination of many boom and behavioral procedures in plants cycles and are important for plant frame development.

Thus it is clear that the system that carries auxin to move to the darker side is the vascular system.

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Answer:How did isolationism act as a deterrent to U.S. participation in the war?

Explanation:Americans felt that the distance between them and the war would keep them safe.

Americans felt that the distance between them and the war would keep them safe.

Americans did not want to get involved in another war in Europe.

Americans did not want to get involved in another war in Europe.

Americans did not prefer one side of the conflict over another.

Americans did not prefer one side of the conflict over another.

Americans didn't believe their military was strong enough to fight both Germany and Japan.

XD

Answer:

In the cell wall, the endoplasmic reticulum provides a skeletal framework to the cell which helps to give support to the cytoplasmic matrix whereas the Golgi apparatus synthesizes pectic compounds and polysaccharides which help in the formation of the cell wall.

Explanation:

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Answer:

D. All of the above

Explanation:

Pollution makes ground water un-usable

Rate of Replenishment causes droughts, at the rate we use it.

Lack of precipitation results in little rainfall, making no groundwater

Answer:

D

Explanation:

Answer:

it could kill off the invasive species but then you would have to worry about your native species too or it can all work in its favor meaning it doesn't effect the invasive species at all and only kills the native species

Explanation:

Answer:

growth

Explanation:

Remember that blue light does not penetrate human tissue as deeply as red light does. Then, veins that are close to the surface of the skin will be more likely to reflect blue light back to the eye.

Thus, we can conclude that the correct answer is:

Veins appear blue because blue light is reflected back to our eyes. That is, blue light does not penetrate human tissue as deeply as red light does. Then, veins that are close to the surface of the skin will be more likely to reflect blue light back to the eye.

Carbon and amino acids are essential for bacterial growth therefore the correct option is A.

Carbon is  needed for energy  product and for the  conflation of biomass, while amino acids are necessary for the  product of proteins. The primary sources of carbon and amino acids for bacteria are organic  composites from the  environment. These  composites can be  attained from the  terrain through ingestion,  immersion, or application of waste products.

exemplifications of carbon sources include carbohydrates,  similar as glucose, and organic acids, like acetate. Amino acids can be  attained from proteins and peptides in the  environment. Bacteria can also use inorganic sources of carbon,  similar as carbon dioxide and bicarbonate, but they're much less effective at  exercising these sources.

Hence the correct option is A.

Question is incomplete the complete question is

Which of the following is a source of carbon and amino acids during bacterial growth?

a. Carbon and amino acids

b. Only  amino acids

c. Carbon only

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Answer:

yes soulder carry is acctually a good choice

Explanation:

There are several ways to carry a gun. The shoulder carry is a good choice when the all other hunters are in front of you. The correct option is A.

A Gun is a metal object or weapon, that is designed to shoot people or unwanted things. They are usually used in wars or for self-defense.

When the hunters are in front of you, the gun should be carried on your shoulders.

Thus, the correct option is A, when all other hunters are in front of you.

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The full question and options are attached in the image.

Answer: becteria

Explanation:

pasteur diveded micro-organisms in to severel group of and control groups.