look at the picture
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A biotic factor is a living organism that shapes its environment.Food webs connect many different food chains, and many different trophic levels. Food webs can support food chains that are long and complicated, or very short.

Within an ecosystem, there are different components that are part of it and that work together, and this interaction, ideally, creates an equilibrium in the ecosystem.

In the picture, we can see one abiotic factor such as the sun, that it's fundamental to the development of some biotic factors such as the producers. Some other abiotic factors could be water or minerals on the soil that plants use to survive. Later on, in the food chain, we can see how different types of biotic factors interact, being the producers eaten by the primary consumers, and so on. When the biotics factors die, they are decomposed by the decomposers such as fungi, producing organic and inorganic matter, closing the cycle.

Hip joint: It has the presence of ligaments that provides it strongness and musculature. because of these ligaments, allows the 180° movements of the legs. As the leg is used for running or much more physically intense activities the joint between the pelvis and femur that is the ball and socket joint gets so much pressure and stress, but due to its strong reinforcement by the ligaments, it becomes more flexible and strong.

Shoulder joint: As it is located in the scapula and also has the ball and socket joint it provides mobility as we can stretch our arm, and use it for throwing many things so this shows that it has mobility, but this reduces the stability by causing the rotatory injuries. Always remember that shoulder is in the shoulder blade which is mobile and this makes it risky and susceptible to injuries.

Conclusion: The scapula has mobility and we can see the upward and downward movement in it so this makes the shoulder joint more mobile but less stable as compared to the hip joint which has more stability.

Protozoans like paramecium have protoplasmic invasions called gullets, which aid in these species' food uptake and digesting.

Protists have eukaryotic cells, as opposed to bacteria, these organisms feature cytoplasmic membrane-bound components as well as a nucleus that is membrane-bound.

Another kind of protists is zooflagellates, they resemble animals and use flagella to move. Flagella are whip-like organelles that rapidly spin and help an organism move through the water like a boat's propeller.

The majority of zooflagellates have one to eight flagella that aid in movement, protists do not belong to a monophyletic group of creatures.

Therefore, The paramecium's gullet functions as the buccal cavity where food is transformed into food vacuoles for digestion.

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The example of role strain in the given ones is "Becca returns to work after giving birth to her daughter, finding it difficult to act as mother, wife, and executive." The correct option is D.

Role strain is a strain that someone feels when they are assigned to a single role that requires them to perform multiple functions.

For example, Becca has given birth, but her role requires her to be a wife, mother, and executive.

All of these roles have responsibilities that she must fulfill, which can be very taxing and stressful on one person, resulting in role strain.

Thus, the correct option is D.

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The cell has several types of membrane transport alternatives, being the simple diffusion, facilitated diffusion, and active transport one of the options for the cell to exchange molecules between internal and external environment.

The types of cell transport:

1 - Simple Diffusion: is a process that does not need energy (passive), used to transport small and nonpolar molecules from a region of higher concentration into a region of lower concentration (in the gradient concentration direction);

2 - Facilitated Diffusion: is a process that does not need energy (passive), used to transport larger ions and polar molecules with the help of carrier proteins or pore proteins (transport proteins);

3 - Active Transport: There is two types of active transport, primary active transport is used for molecules moving against their gradient coupled to the hydrolysis of ATP, and secondary active transport is for molecules going with more molecules against their gradient. It is a process that needs energy (active) to happen, going always against the gradient of concentration of the cell.

There are four types of tongue papillae: (1) filiform, which is thin and wired shape and no taste buds, (2) fungiform, which is mushroom-shaped near the middle and with taste buds, (3) foliate, which is leaf-shaped near the sides and with taste buds, and (4) circumvallate papillae, which is whorls at the sides and with taste buds.

ANSWER: TRUE. There are taste buds in the fungiform and circumvallate papillae.

the native american children were forced to assimilate by forcing them to attend boarding schools they were forced to learn english, wear uniforms and force to study under study standards

A+ _3__:16

B+ __3_:16

AB+ _3__:16

O+ _3__:16

A- _1__:16

B- __1_:16

AB- _1__:16

O- __1_:16

Glucose is referred to as the compound which has the highest potential energy.

This is referred to as the type of energy which is possessed by a body by virtue of its position and is depicted by the state of rest of a body or compound.

Glucose and glycogen are compounds which helps supply energy to the cells of the body so as to enable them perform their daily activities. Glucose however has the highest potential energy because it has more bonds and also means there is more energy available to perform different types of reactions.

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A prophage is a viral genome that infects bacterial cells, thus it integrates into a bacterial genome; while a provirus is a viral genome that integrates into an ekcaryotic genome.

Here we are comparing the DNA sequence of the gene for skin pigment in a normal gorilla (sample 1) and an albino gorilla (sample 2).

The sequences are the following:

Sample 1

ATT ACA GTA CTG GCA

Sample 2

ATT ACA ATA CTG GGC A

We can see that the sequences have different lengths, sample 1 has a length of 15 base pairs (bp), while sample 2 has 16 bp. This means there is an extra nucleotide, so this is an insertion mutation.

This means the correct answer is C. Insertion

Variation of the same question

There are 2 main types of transportations through the cell membrane, in which both have the ability to utilize proteins to allow substances to enter and leave:

0. Active Transport

1. Passive Transport

Active transport must have ATP in order to allow the protein to be active for transportation. Passive transport doesn't need energy in order to transport a substance across the membrane.

Answer: Protein channels and carrier proteins.

Explanation:

Answer: B

Explanation:

The bloodstream receives oxygen from the lungs during gas exchange. Carbon dioxide leaves circulation enters the lungs. Between the alveoli and network of tiny blood arteries known as capillaries are the lungs.

The waste gas carbon dioxide is exchanged for oxygen at each cell in your body. This waste gas is then transported by your bloodstream back to your lungs, where it is expelled after being eliminated from the bloodstream. Gas exchange, a crucial activity carried out automatically by your lungs and respiratory system, is a fundamental function.

While carbon dioxide diffuses into the alveoli and is later breathed out of the body, oxygen diffuses from the alveoli into the capillaries, which carry it out of the lungs and to the rest of the body. The respiratory membrane serves as a barrier for the exchange of oxygen and carbon dioxide.

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Answer: The Ocean

Explanation: The ocean contains a vast amount reservoir of carbon this is because of the organisms in the ocean that take carbon dioxide.

According to the lab, data must be collected per week and placed in the tables, according to week, also the number of sprouts and blade height, as is indicated in each table, the fields referring to other plants other than grass must be left out (unless other plant species is worked too). However, in this case, weeks, one and two were asked to leave them out, so those fields are in blank too. This way, the progression in growth won't be appreciated, nonetheless the objective to compare nutrients added vs not nutrients is accomplished possessing measures from day one and week 3 at the end of the experiment.

The rain will be able to run off more quickly on concrete and in a vast field, which will probably cause flooding in both areas.

The continual movement of water on, above, and below the Earth's surface is referred to as the water cycle, also known as the hydrologic cycle or the hydrological cycle.

Concrete is less porous than soil, thus the water won't be able to seep back into the soil. The volume of water in subsurface aquifers would decrease as a result.

Additionally, the rain will be able to run off more quickly on concrete and in a vast field, which will probably cause flooding in both areas. Both of these would probably hasten the water cycle and have detrimental consequences for people.

Therefore, the correct answer is option c. Runoff into storm drains increases.

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The process is non-spontaneous and causes an increase in entropy.

The process is not automatic even thoug it involves transportation of materials in a cell. There is a change in the amount of free energy but there is entropy.

Answer:

Keeping birds from becoming tangled in fishing line.

Answer:

B

Explanation:

Because the growth of the plant will take time leading into the future.

The effects of the human population on Easter Island led to the ecocide hypothesis.

The island's carrying capacity for sustainable crops was exceeded by human populations, which led to a significant loss of forest cover. Its natural cycle of matter and energy likewise decreased or changed, and as a result, the population fought over the island's limited resources.

They turned to cannibalism since they were short on food and starving. In the years 1862 and 1863, blackbirds also plagued the island. The palm tree seeds are thought to have provided food for the growing rat population, according to archaeologists.

This theory was in line with discoveries made on other Polynesian islands. The rats and human activity would have eventually caused the tree population to dwindle. Hunt used the "rat plague" as the basis for his theory regarding Easter Island's deforestation.

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The role of  environmental factors in very long-distance run or other performances is that the longer the performance, the greater the chance that environmental factors play a role in the result and is a limiting factor.

This is referred to as the ability or the capacity to do work and examples include the following: potential, chemical energy etc.

The longer the performance, the greater the chance that environmental factors play a role in the outcome and they become limiting in terms of energy production because they are able to restrict or influence certain activities needed for its generation.

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DNA is a long molecule that carries genetic information . it is made up of small units called nucleotides . A nucleotide has a phosphate group a 5 carbon sugar called bases and one of nitrogen containing region. The purines include adenine and Thymine . The pyrimidines include cytosine and guanine.

DNA is composed of a series of molecules called nucleotides. each nucleotide is itself made up of three primary components: a nitrogen-containing region known as a nitrogenous base, a carbon-based sugar molecule called deoxyribose, and a phosphorus-containing region known as a phosphate group attached to the sugar. The nitrogen bases are adenine , thymine, guanine, and cytosine .

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Larger DNA molecules travel more slowly across the gel matrix during electrophoresis than smaller ones do. As a result, the DNA molecules divide into different bands according to their respective sizes. The quantity of DNA that builds up in a band determines how black the band is.

Because DNA is negatively charged, it gravitates toward the positive electrode. All DNA fragments flow through the gel at the same speed because they all have the same mass-to-charge ratio.

A PCR result must frequently be further altered by cleavage with restriction enzymes. Without any DNA purification, restriction enzyme digestion may be carried out quickly and easily right in the PCR mixture.

The PCR primers' structure determines the size of the PCR result. To amplify an area of interest from a double-stranded DNA template, the user designs PCR primers. Always two primers are present, and they are made to border the area.

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When we consider species like the ones the question tells us about, we usually one faces an example of predation, since squirrel can behave as tertiary consumers for spiders, which are then secondary consumers. So the roles they develop in the environment can be named as population maintenance (especially for the squirrels, because they can control the wolf spider population, and spiders can allow them to continue their population growth).

The image points to a vessel that comes from the bottom of the heart and reaches its top to attach to it on the top. It is called aorta.

Therefore, the correct answer is A) Aorta

For the first and second question we have:

Squid eats: Krill

Blue whale eats: Krill

Seal eats: Krill, Squid, Penguins (Only leopard seals)

Krill eats: Zooplankton (and phytoplankton)

Penguin eats: Krill, squids

Zooplankton eats: no one (in the picture, but they eat phytoplankton)

For the third question: Bacteria enter as decomposers in the food web.

Finally, for the fourth question we have:

Producers: Phytoplankton

Consumers: squids, blue whale, seal, krill, penguin and zooplankton

Decomposer: Bacteria