Does this satisfy the octet rule why or why not

Answer:

ransporting channels of the cell—— Endoplasmic Reticulum.

Powerhouse of the cell—— Mitochondria.

Packaging and dispatching unit of the cell—— Golgi Body.

Digestive bag of the cell—— Lysosomes.

Storage sacs of the cell—— Vacuole.

Kitchen of the cell—— Chloroplast.

Control room of the cell—— Nucleus.

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Answer:

Explanation:

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Paper chromatography is an efficient method since it uses little material and is relatively quick. The partitioning principle is used in paper chromatography for separations. Substances are divided between a stationary phase and a mobile phase in paper chromatography.

An analytical technique for separating coloured compounds or substances is paper chromatography. Since alternative chromatography techniques like thin-layer chromatography have taken its place in the laboratory, it is now largely utilized as a teaching tool (TLC). Two solvents are used in two-dimensional paper chromatography, which rotates the paper 90 degrees between solvents. This is helpful for sorting out complicated mixtures of chemicals with comparable polarity, like amino acids. There are three parts to the setup. A solution that rises the stationary phase as a result of capillary action is known as the mobile phase. The stationary phase typically consists of polar inorganic solvent water, while the mobile phase typically consists of a combination of non-polar organic solvents. In this instance, the stationary phase, water, is supported by paper. Polar water molecules are trapped in the cellulose network of the host paper's empty space. In contrast to paper chromatography, which uses less absorbent paper as its stationary phase, TLC uses a layer of adsorbent (often silica gel or aluminium oxide) as its stationary phase.

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Answer:

positive, negative, or no effect

Explanation:

It was right on the test

Positive, Negative or no effect can a chromosomal change can have on an organism. So, the correct option is (A).

When there is an increase or loss of chromosome number from the normal number of chromosomes which is 46, it is called aneuploidy. A common form of aneuploidy is trisomy which is the presence of an extra chromosome in cells.

"Tri-" is Greek for "three" which define as the people with trisomy have three copies of a particular chromosome in their cells instead of the normal two copies.

Chromosomal abnormalities can occur when an accident occurs when the egg or sperm are being formed or during the early developmental stages of the embryo. Maternal age and certain environmental factors may play a role in the occurrence of genetic errors. There are Positive, negative, or no effect in the chromosomal change.

Thus, Positive, Negative or no effect can a chromosomal change can have on an organism. So, the correct option is (A).

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Answer:

Enzymes

Explanation:

Answer:

Enzymes and activation energy

Explanation:

A substance that speeds up a chemical reaction—without being a reactant—is called a catalyst. The catalysts for biochemical reactions that happen in living organisms are called enzymes. Enzymes are usually proteins, though some ribonucleic acid (RNA) molecules act as enzymes too. hope this helps you :)

Answer:

light-dependent step (first step)

The answer is: a term used to indicate species or higher level groups, such as genera or families, is Taxon.

Answer:

Lithosphere is the topmost solid part of the Earth

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Answer: d, seasonal cycles

Explanation: it doesn't affect the population.

Answer:

Fertilizer

Explanation:

Independent variable = a variable that does not depend on another

Since the plant growth depends on the fertilizers, we can note that plants are the dependent variable.

The fertilizer is independent since it does not depend on anything.

Answer:

WHEN LIVING CONDITION BECOME UNFAVORABLE, SOME BACTERIA FORM SPECIAL, DEHYDRATED CELLS CALLED ENDOSPORES. ... Although the Original Cell may be Destroyed (Die) by harsh conditions, its Endospore will survive. They help bacteria resist High Temperature, Harsh Chemicals, Radiation, Drying, and other environmental extremes.

Explanation:

Answer: A

Explanation: the ice age posed a new chalenge to deer mice and on the ice the preadators could spot the darker deer mice better than the light deer mice.

Population growth rates in countries A and B are equal.

The population growth rate in each country can be calculated using the following formula:

Population Growth Rate = (Birth Rate - Death Rate) / 10

Since the average number of offspring per woman is 3 in both countries, we can assume that the birth rate is the same for both countries, and is equal to 3.

We do not have information about the death rate in each country, but we can make an assumption that it is roughly the same in both countries. Therefore, we can assume that the death rate is equal to 1, which is the average death rate for most developed countries.

Using these assumptions, we can calculate the population growth rate for each country:

Population Growth Rate in Country\(A = (3 - 1) / 10 = 0.2\)

Population Growth Rate in Country \(B = (3 - 1) / 10 = 0.2\)

Therefore, the population growth rates in countries A and B are the same

The population growth rates in countries A and B are the same.

These calculations are based on several assumptions, and may not reflect the actual population growth rates in each country. Actual population growth rates depend on a variety of factors, including birth rates, death rates, migration, and other demographic factors.

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In the study described, researchers were aiming to control for potential confounding factors by varying the order of protocols given to each subject across three nights. By ensuring that one third of the subjects received each protocol on a given night, the study design minimized the possibility of systematic biases or extraneous variables affecting the results.

There are several factors that the researchers might have been attempting to control for with this approach. One possible factor is the order effect, where the sequence of protocols might influence the subjects' responses. By randomizing the order, researchers can reduce the impact of such effects on the study outcomes.
Another factor they might be controlling for is fatigue or learning effects. If all subjects were to receive the same protocol order, their responses might be influenced by tiredness or familiarity with the tasks, rather than the specific effects of each protocol. By varying the order, researchers can better distinguish between the actual impact of each protocol and other factors that could influence performance.
Additionally, this approach can help to control for subject variability. If some subjects have a predisposition towards a particular outcome, randomizing the order of protocols helps to ensure that the results are not skewed due to such individual differences.
In summary, the researchers were trying to control for factors such as order effects, fatigue or learning effects, and subject variability by varying the order of the protocols and allocating each protocol to one-third of the subjects each night. This approach helps to provide more accurate and reliable results in their study of mastering biology.

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Answer:

D - How trichoplax adhaerens eats by engulfing it's food

Phagocytosis is a process in which Trichoplax adhaerens eats by engulfing its food, which is in Option D. It is a process by which the cells engulf the food that is coming from the outside of the cell.

The cell has many organelles, such as the lysosome, vacuole, cell nucleus, etc., but each organelle has a special function, and one organelle cannot take over the function of another organelle. The lysosomes have a very unique and acidic environment that destroys the organelles, such as old organelles, and kills viruses, etc.

When outside food particles or pathogens enter the cell, they enter as a vacuole, and the cell transports them from the outside to the inside through a variety of processes. The cell then eats them, a process known as phagocytosis, and if it is a virus, the lysosome degrades it.

Hence, Phagocytosis is a process in which Trichoplax adhaerens eats by engulfing its food, which is in Option D.

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A change occurs in the genetic traits passed down from one generation to the next.

Natural selection is the process by which living organism populations adapt and change. Individuals in a population are naturally variable, which means they differ in some ways. This variation indicates that some people have traits that are better suited to their environment than others.

Biological evolution is the change in inherited traits in populations of organisms over successive generations. Trait evolution occurs when variation is introduced into a population through gene mutation or genetic recombination or is removed through natural selection or genetic drift.

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Answer: Amino Acid

Explanation:

Adaptive radiation groups plants and animals into a wide variety of species.

Adaptive radiation, also known as divergent evolution, is a process in which a single ancestral species gives rise to multiple new species that are adapted to a wide variety of ecological niches.

This process often occurs in situations where a new ecological opportunity arises, such as when new habitats become available or when environmental conditions change.

The new species that arise from adaptive radiation often exhibit significant morphological and behavioral differences, as they evolve to exploit different resources and ecological niches. This process can lead to the evolution of a wide variety of forms and functions, including differences in feeding habits, locomotion, and reproduction.

Adaptive radiation is an important driver of biological diversity and is a key process in the evolution of many animal and plant groups.

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If one-period forward rates are decreasing with maturity, the yield curve is most likely downward sloping or inverted.

The shape of the yield curve is determined by the relationship between the yield (interest rate) and the maturity of fixed-income securities. In a normal or upward sloping yield curve, longer-term securities have higher yields compared to shorter-term securities. This indicates that investors require higher compensation for the increased risk and uncertainty associated with longer maturities.

However, if one-period forward rates (expected future short-term rates) are decreasing with maturity, it suggests that market participants expect interest rates to decline in the future. In this scenario, investors may be willing to accept lower yields on longer-term securities because they anticipate falling interest rates, which would result in higher bond prices and capital gains. As a result, the yield curve becomes downward sloping or inverted.

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Answer:

An allele is a variant of a gene. Everyone has at least 2 alleles for every gene. Because of this, humans are known as diploid organisms.

Explanation:

Genes are the complex proteins that give us hereditary traits such as hair and eye color. But genes mutate, with at least 2 copies per single gene. These copies are known as alleles.

In a color-coded diagram, you may represent somatic motor neurons in blue and autonomic motor divisions in green and red. The somatic motor division has a single neuron connecting the CNS to the muscle, while the autonomic motor division has a two-neuron chain.

In order to identify the major anatomical differences between the somatic and autonomic motor divisions, it's essential to understand their functions and structures.

The somatic motor division controls voluntary movements and is responsible for transmitting signals from the central nervous system (CNS) to the skeletal muscles. This division consists of a single neuron connecting the CNS to the target muscle. The cell body of this neuron is located in the spinal cord, and the axon extends to the neuromuscular junction of the muscle fiber. In a color-coded diagram, you may represent somatic motor neurons in blue.

The autonomic motor division, on the other hand, controls involuntary processes such as digestion, heart rate, and blood pressure. It is divided into two sub-divisions: the sympathetic and parasympathetic systems. Autonomic motor pathways consist of a two-neuron chain. The first neuron, called the preganglionic neuron, has its cell body in the spinal cord, and its axon extends to an autonomic ganglion. The second neuron, called the postganglionic neuron, has its cell body in the ganglion, and its axon extends to the target tissue. In a color-coded diagram, you may represent preganglionic neurons in green and postganglionic neurons in red.

In summary, the primary anatomical difference between somatic and autonomic motor divisions is the number of neurons in their pathways. The somatic motor division has a single neuron connecting the CNS to the muscle, while the autonomic motor division has a two-neuron chain. By color-coding these structures, you can easily identify and visualize their differences.

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Answer:

D

Explanation:

Because water vapour is a gas and evaporation is the process of turning a liquid into a gas so the water which is the liquid turns into water vapour the gas

Answer:

D

Explanation:

Troponin is a regulatory protein found in muscle cells that plays a crucial role in muscle contraction. It consists of three subunits: troponin C, troponin I, and troponin T.

Troponin C is the calcium-binding subunit of troponin, which binds to calcium ions when they are released into the muscle cell upon stimulation. This calcium-binding causes a conformational change in the troponin complex that allows for the interaction between myosin and actin, leading to muscle contraction.

Troponin I, on the other hand, binds to actin and inhibits its interaction with myosin, preventing contraction in the absence of calcium.

Finally, troponin T binds to tropomyosin, helping to stabilize the entire troponin-tropomyosin complex on the actin filament, further regulating muscle contraction.

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Based on the assumption that individuals seek to maximize the return (in calories and nutrients) on their labor, age and gender is a model used by anthropologists to how food collectors decide which animals and plants to hunt or collect and which to ignore.

In its most basic sense, the term "labor" refers to employment that requires heavy manual labor, typically performed by unskilled laborers. However, the term "labor" in economics refers to manual labor. It also requires mental effort. In other words, work that is done physically or mentally in exchange for payment is considered labor.

When it comes to human origins, physical, social, linguistic, and cultural development, behavior, and the cultures, organizations, and institutions that people have built over time, anthropologists study, assess, and help shape public policy.

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Answer:

To transport energy

Explanation:

Explanation:

We use cell transport because it assists in the movement of important parts of the cell to keep it alive and healthy. This causing the organism to continuously live.

The correct answer is a. extreme competition for food, territory, and reproductive opportunities. Life in productive tropical reefs is characterized by extreme competition for food, territory, and reproductive opportunities.

Tropical reefs are some of the most productive and diverse ecosystems on the planet, with high levels of biodiversity and abundance of species. In such a competitive environment, organisms must compete for limited resources such as food, space, and mates. This competition can lead to a variety of adaptations, such as specialized feeding behaviors, territorial defense, and elaborate courtship displays.

Tropical reefs are also characterized by high levels of species richness, with many different species represented in each trophic level of the food chain. This high diversity is important for maintaining ecosystem stability and resilience in the face of disturbances such as storms or coral bleaching events.

In terms of life history strategies, many reef organisms have relatively short lifespans and reproduce at a relatively young age, which allows them to take advantage of the brief periods of favorable conditions in the reef environment. This is in contrast to species in other ecosystems, such as temperate forests, where individuals may have longer lifespans and reproduce later in life.

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Answer:

Decomposer.

Explanation:

Decomposers are the organisms that break down dead things into organic matter and soil.