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What do beneficial mutations do?
A: Decrease chances of survival
B: Decreases likelihood of developing cancer
C: Increases likelihood of developing cancer
D: Increases chances of survival

Answer:

A

Explanation:

These are the correct layers in order of increasing altitude.

Answer:

Ionosphere

Explanation:

The temperature in the ionosphere increases as altitude increases. In the ionosphere, a layer known as the thermosphere starts. The name thermosphere comes from the temperature increasing as altitude increases.

In ecology, density is a measure that refers to how many individuals a population has in a specific habitat.

Considering this, we can say that water is a density-dependent limiting factor, since this is a limited resource that can vary its availability annually, but also is a species have too many individuals, all of them will not have the same capacity to reach this resource, especially when we talk about large animals or plants.

Diseases caused by bacteria would be also a density-dependent limiting factor, since only when too many microorganisms of a pathogenic species replicate in our bodies, do we begin to feel the symptoms of that illness.

Predators are also a density-dependent limiting factor since the species which they feed on can be overhunted by them, being reduced in number of individuals, or being not too much hunted and increase their individuals.

Earthquakes are a density-independent limiting factor, since they do not depend on other factors to occur, but only on the movement of our planet's plates.

Finally, limits population regardless of how many organisms are present in the area is a density-independent limiting factor, since they do not depend on how many organisms they're to limit the increase of the population. Being this option an abiotic kind of non-limiting factor.

Explanation:

Number the steps to carry out an investigation:

These are the number of steps to carry out an investigation:

An investigation is defined as a thorough discovery of facts, which are hidden or need to be resolved in a complex situation. The goal of an investigation is to determine how or why something happened. Investigation is usually formal and official.

It is the collection of facts to accomplish a three-fold aim to:

1. Identify the suspect

2 .Locate the suspect

3. Provide evidence of his guilt

Investigation involves the six steps. These are:

Thus, these are the number of steps to carry out an investigation:

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Explanation:

The first stage of photosynthesis is the light dependent reactions. These reactions take place on the thylakoid membrane inside the chloroplast. During this stage light energy is converted to ATP (chemical energy) and NADPH (reducing power).

The light-dependent processes make up the initial phase of photosynthesis. On the thylakoid membrane inside the chloroplast, several processes take occur. In this phase, light energy is transformed to ATP and NADPH, two chemical energies (reducing power).

The light processes of photosynthesis are carried out by a system of connected internal membranes called thylakoid membranes in a chloroplast.

Numerous proteins and chlorophyll molecules can be found in each thylakoid membrane. Clusters of chlorophyll molecules are called photosystem.

Plants use chlorophyll pigments to absorb light energy and convert it to electrons, which are subsequently transmitted down a protein chain in the thylakoid membrane.

Therefore, thylakoid membrane inside the chloroplast in  which photosynthesis form in a leaf first.

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Answer:

The central idea of biological evolution is that all life on Earth shares a common ancestor, just as you and your cousins share a common grandmother.

Answer:

Heyz therez

The cell membrane moderates what comes in and out of a cell, it is vital for the homiostais of the cell. It also keeps it together so all the organelles don't just sail away. ⛵

Answer:

Cell membranes protect and organize cells.

Answer: 3

Explanation:

because it’s the mitochondria

Answer:

The answer is c

Explanation:

the answer is c because the thing that is labeled three is the mitochondria

One feature of a natural leg that cannot be fully replicated by an artificial leg is the ability to sense and feel various sensations, including touch, temperature, and pain. This is due to the complex network of sensory nerves and receptors present in a natural leg.

The human leg is equipped with a sophisticated sensory system that allows us to perceive and interpret various sensations. This sensory system includes specialized nerve endings, such as mechanoreceptors, thermoreceptors, and nociceptors, which provide feedback about touch, temperature, and pain, respectively.

While advancements in prosthetic technology have made significant strides in replicating the functional aspects of a natural leg, the ability to fully mimic the sensory capabilities of a biological limb remains a challenge. Although artificial legs can provide stability, mobility, and basic feedback through pressure sensors or microprocessors, they cannot match the intricacy and complexity of the natural sensory system.

The human sensory system is incredibly nuanced and allows us to experience subtle nuances in touch, detect temperature changes, and respond to potential threats or injuries through the sensation of pain. These sensory inputs are essential for balance, coordination, and proprioception, which are crucial for fluid and coordinated movement. Unfortunately, replicating such a complex sensory system in an artificial leg is currently beyond the scope of available technology.

In conclusion, while artificial legs can provide functional mobility, they cannot fully replicate the rich sensory experience and feedback provided by a natural leg. The complex network of sensory nerves and receptors present in the human leg enables us to perceive touch, temperature, and pain, which are challenging to fully replicate in an artificial limb.

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Answer:

Conifers have waxy, needle-shaped leaves to retain water.

Conifers grow cones as a means of reproducing.

i just took the quiz so its correct

Explanation:

Coniferous trees grow cones as a means of reproducing and have got waxy, needle-shaped leaves to retain water which makes them different from deciduous trees . hence the correct options will be B and D.

Deciduous trees have broad leaves that turn color in the fall and use flowers to disperse their seeds.

Coniferous trees have needles instead of leaves, don't change color in the fall, and disperse their seeds using cones rather than flowers.

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The molecules that conserve most of the energy from the redox reactions of the citric acid cycle are NADH and FADH2. This energy is converted into a form that can be used to make ATP through oxidative phosphorylation.

During the citric acid cycle, also known as the Krebs cycle or tricarboxylic acid cycle, a series of redox reactions occur that result in the production of energy-rich molecules. Two of the main molecules that carry and conserve most of the energy in this process are NADH (nicotinamide adenine dinucleotide) and FADH2 (flavin adenine dinucleotide).

NADH and FADH2 are formed when NAD+ and FAD, respectively, accept electrons and hydrogen ions (H+) from the citric acid cycle intermediates. These molecules serve as electron carriers, storing the energy from the redox reactions.

The next step in the energy conversion process involves oxidative phosphorylation, which takes place in the inner mitochondrial membrane. Here, the high-energy electrons carried by NADH and FADH2 are transferred to the electron transport chain (ETC), a series of protein complexes embedded in the membrane. As the electrons pass through the ETC, their energy is gradually released, and this energy is used to pump protons (H+) across the membrane, creating an electrochemical gradient.

The final step in ATP synthesis is the flow of protons back into the mitochondrial matrix through an enzyme called ATP synthase. This flow of protons drives the synthesis of ATP from adenosine diphosphate (ADP) and inorganic phosphate (Pi) in a process called chemiosmosis. In this way, the energy conserved in NADH and FADH2 from the citric acid cycle is converted into ATP, which is the primary energy currency of cells.

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Answer:

Mine exploration, construction, operation, and maintenance may result in land-use change, and may have associated negative impacts on environments, including deforestation, erosion, contamination and alteration of soil profiles, contamination of local streams and wetlands, and an increase in noise level, dust and emissions

Answer:

The cerebral cortex, i.e. the external part of the brain with its grooves and folds, plays a major role in our consciousness. ... Therefore, this region of the brain appears to play a role in deciding which impressions reach our consciousness. Thus the content of consciousness is based in two different brain regions.

Explanation:

The cerebral cortex, i.e. the external part of the brain with its grooves and folds, plays a major role in our consciousness. ... Therefore, this region of the brain appears to play a role in deciding which impressions reach our consciousness. Thus the content of consciousness is based in two different brain regions.

Answer:

Cognitive functions are heavily dependent on our cerebral cortex, which is composed of a number of grooved and folded areas of the brain. Accordingly, this part of the brain may be involved in the selection of impressions that reach our consciousness. Consciousness is therefore reliant on two separate brain regions.

Explanation:

Stem Cells A stem cell is an undifferentiated cell that can be copied or changed into other cell types. Stem cells from human embryonic cells can differentiate into most different types of human cells. Stem cells from adult bone marrow can form cells including blood cells.

Stem cells in plants can differentiate into any type of plant cell. And plant meristem stem cell can be used to produce clones of plants.In cloning, an embryo is produced with the same DNA as the patient. Stem cells from the embryo are not rejected as they have the same DNA and antigens as the patient.Stem cells may be able to help treat diseases. Risks from stem cell treatment include the transfer of pathogens and some people have ethical or religious objections. Species can be cloned to protect from extinction.

It is possible to clone large numbers of identical crop plants with desirable features such as disease resistance or high crop yield.

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Many steps were taken by congress during the covid-19 pandemic to lessen the blow to those impacted. COVID-19 pandemic has severe and devastating impacts on American society, economy and health sectors compounding public as well as social crisis & economic burdens.

In 2020, COVID-19 pandemic spread worldwide bringing national and global emergency and crisis. However, American were severely effected by the pandemic.

Congress took some immediate and sensible measures to mitigate the effects of the pandemic and also made certain efforts to reduce the impending crisis.

However, the congress provided aid to the social, local, tribal and state governments.  The steps take by congress include direct payments to effected individuals, tax incentives, increased benefits for unemployed people  with $300 weekly.

Furthermore, 174 billion dollar funds were allocated for public health measures and 170 billion dollar for education at all levels.

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The claim that extant great apes and Miocene apes have an uninterrupted fossil record in Africa is not currently supported.

The early primates most likely descended from a small, nocturnal, insectivorous mammal. Tree shrews and colugos, sometimes known as flying lemurs, are the two species that are most similar to primates. A living illustration of early primates or primate ancestors' appearance is the tree shrew.

Like chimpanzees, we did not develop from a contemporary living primate. Our common ancestor with apes, who lived and perished in the distant past, is where we evolved and descended from. This indicates that we share ancestry with other apes.

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Answer:

A

tyler has a points card for a movie theater.

he receives 75 rewards points just for signing up.

• he earns 10.5 points for each visit to the movie theater.

he needs 180 points for a free movie ticket.

.

a

how many visits must tyler make to earn a free movie ticket?

Explanation:

The series of steps that lead to an increase in plasma cortisol levels in most people begins with the exocytosis of vesicles that contain CRH. The CRH then travels to the anterior pituitary gland, where it stimulates the release of ACTH.

The ACTH enters the bloodstream and binds with receptors present over the adrenal gland. This prompts the adrenal cortex to release cortisol into the bloodstream, which increases blood pressure, blood glucose levels, and other physiological responses. The synthesis of cortisol is promoted through this process.

In someone with complete AIS, the gonads are partially or fully developed but remain undescended. The functioning testes release androgen causing an increase in the growth of the Wolffian ducts, which then develop into the internal reproductive organs.

However, due to the lack of receptors for androgens, the external genitalia are feminized with a lack of or no pubic hair, and an empty scrotal sac may be seen.

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Yellow perch is a freshwater fish that is generally found in ponds, lakes, and streams. It prefers to live in water bodies that are moderately acidic, and it is tolerant to low dissolved oxygen concentrations.

The optimum temperature range for yellow perch growth is between 20°C and 26°C. As a result, it is commonly found in the Great Lakes region of North America, where temperatures are typically within this range.Mostly, yellow perch prefers water temperatures of 15 to 20 degrees Celsius for breeding.

Additionally, water temperatures that are lower than 4°C or greater than 32°C are harmful to yellow perch, and they may die if exposed to such temperatures. Therefore, it is vital to maintain the ideal water temperature range to support the growth and sustainability of the yellow perch population.

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Answer ia A

Explanation:

Answer:

A

Explanation:

Droplets or small particles contain infectious agents that remain effective over time and distance in the air, is the meaning of airborne transmission.

A pathogen can be defined as any group of living microorganisms that are capable of causing diseases and harm to their host. In Science, some examples of pathogen include the following:

Air pollution can be defined as the contamination of an environment or the atmosphere, especially through an emission of poisonous, hazardous, and toxic chemical compounds (substances) by humans and various industries or factories.

Generally speaking, airborne transmission such as tuberculosis occurs when droplets or small particles of infectious agents remain effective or potent over time and distance in the atmosphere (air).

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The condition that causes the contractile vacuole to fill with water is 'an increase in osmotic pressure within the cell'.

The contractile vacuole fills up with water in order to maintain homeostasis and prevent the cell from bursting due to osmotic pressure.

An increase in osmotic pressure occurs when there is a higher concentration of solutes outside of the cell compared to inside the cell. Water will then move out of the cell through osmosis, causing the cell to shrink.

In response to this, the contractile vacuole will fill up with water and contract to expel the excess water outside of the cell. This process is known as osmoregulation and is vital for the survival of cells in environments with varying osmotic pressures.

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Contractile vacuoles in certain organisms fill with water when the cell is in a hypotonic environment. The vacuole collects the excess water and expels it from the cell through exocytosis, preventing the cell from bursting.

The contractile vacuoles in certain cellular organisms, like protists, fill with water due to exposure to a hypotonic environment, which has a lower solute concentration than the cell. In this environment, water tends to flow into the cell, causing it to swell. The contractile vacuole counteracts this by collecting the excess water and excreting it from the cell through a process known as exocytosis.

This is crucial for the cell's survival, as failing to remove the excess water could cause the cell to burst. For instance, in protists such as paramecia and amoebas that lack cell walls, their contractile vacuoles continuously pump out water to prevent cell lysis. The efficiency of this process is affected by the osmolarity of the surrounding solution, which influences the amount of ATP produced from cellular respiration.

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Answer:

Outer skeleton

Explanation:

"Exo" means outer and "Endo" means Inner which is why we have an endoskeleton so we have an Inner skeleton and to answer your quest Exo means outer so it means outer skeleton

Answer:

What was once a continuous population is divided into two or more smaller populations. This can occur when rivers change course, mountains rise, continents drift, or organisms migrate. The geographic barrier isn't necessarily a physical barrier that separates two or more groups of organisms. It might just be unfavorable habitat between the two populations that keeps them from mating with one another.

Explanation:

Answer:

The slope is \(\frac{4}{3}\).

Explanation:
Slope is \(\frac{y}{x}\), and to find it we need to look for where the line directly ends on the corner of the graph square. One occurs at (3,4), but the reason the slope is 4/3 and not 3/4 is because it is y over x. The y coordinate lines up at 4 and the x lines up at 3 getting you your answer of \(\frac{4}{3}\). I hope this helps! :) Sorry if this makes no sense- but the answer is 4/3.

R-selected species are known for their ability to reproduce rapidly and produce a large number of offspring. They typically have a short lifespan, reach sexual maturity quickly, and do not provide much parental care.

This strategy allows them to quickly colonize new areas and take advantage of available resources. In contrast, K-selected species have a slower reproductive rate, longer lifespan, and provide significant parental care, which limits their ability to colonize new areas quickly.

These characteristics make r-selected species more successful as invasive species because they can quickly establish themselves in a new environment, outcompete native species for resources, and rapidly reproduce to increase their population size. Additionally, r-selected species often have a broader range of tolerances for environmental conditions, allowing them to thrive in a variety of habitats.

Overall, the combination of rapid reproductive rates, short lifespan, and adaptability make r-selected species more successful as invasive species compared to K-selected species, which have a slower rate of reproduction and require specific environmental conditions to survive.
An r-selected species could become a more successful invasive species than a k-selected species due to their specific reproductive and survival strategies. R-selected species are characterized by a high reproductive rate, short generation times, and rapid population growth. They can quickly exploit new environments, adapt to disturbances, and outcompete native species for resources.

On the other hand, k-selected species prioritize quality over quantity, with fewer offspring and a focus on long-term survival. They often require stable environments and more extensive parental care, which makes them less likely to thrive in novel ecosystems or under changing conditions.

In summary, r-selected species are better suited for invading new habitats and outcompeting native species due to their rapid reproduction, short generation times, and ability to quickly adapt to disturbances, making them more successful invasive species compared to k-selected species.

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Sister chromatids differ from non-sister chromatids in that sister chromatids are two copies of a single chromosome and are products of the S phase of the cell cycle.

When a cell divides, there are two types of chromatids: sister chromatids and non-sister chromatids. During the early stages of cell division, chromatoids are produced. Nonsister chromatids appear during metaphase I of meiosis, whereas sister chromatids replicate from the same chromosome. The centromere links sister chromatids together. On the cell equator, the homologous chromosome pair contains non-sister chromatids. The fact that sister chromatids contain the same allele in the same loci, whereas non-sister chromatids do not, is the primary distinction between the two types of chromatids.

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