Free electrons are bound to the nucleus and they orbit along the outermost shell.
O True
O False

Answer:

D

Explanation:

The statement provides the strongest explanation for the trends in the two populations is predator-prey relationships act as density-dependent limiting factors on both predators and prey. Hence option D is correct.

Predator is defined as an organism that mostly hunts and consumes other organisms for food. The term "predator" refers to a species that hunts and eats specific other organisms. The animals that predators consume are referred to as prey.

Predator-prey interactions and prey-predator interactions are both crucial density-dependent population controls. The other population's size determines how each population changes in size.   When the population density reaches a particular point, a density-dependent limiting factor takes effect. Competition, parasitism, and disease are other instances of density-dependent limiting variables.

Thus, the statement provides the strongest explanation for the trends in the two populations is predator-prey relationships act as density-dependent limiting factors on both predators and prey. Hence option D is correct.

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Answer:

They can provide energy for living things in the ecosystem.

Explanation:

Scientists sometimes make discoveries that lead to a need for new laws. the big idea of biology do these situations illustrate in biological systems.

A biological system is a group of organs working together to perform a not unusual characteristic. as an example, the muscular gadget is worried about movement, the skeletal gadget gives safety and assistance, and the circulatory system offers nutrients and waste to and from the cells of the body.

Organic structures are the breathing system, digestive system, and circulatory gadget. The human frame includes the subsequent structures: respiration machine – liable for one of the crucial features in any living organism, respiratory, and gas trade.

A biological system is a complex network that connects numerous biologically relevant entities. the organic company spans numerous scales and is decided based on totally special systems.

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Answer:

a whole lot

Explanation:

- increased greenhouse gas emissions

- more wildfires

- more global warming

- even less trees

- loss of habitat

- extinction

need I go on

The scientific method is a systematic approach used by scientists to investigate and understand the natural world these steps are iterative, meaning that scientists often repeat the process, refining their hypotheses and experiments to gain a deeper understanding of the phenomenon under investigation.

It involves a series of steps that help ensure objectivity, reproducibility, and reliability in scientific research.

The main steps of the scientific method are as follows:

Observation: The first step involves making careful observations of a phenomenon or a problem in the natural world.

Scientists use their senses or instruments to gather data and identify patterns or interesting phenomena.

Question: Based on the observations, scientists formulate a research question that addresses the underlying cause or mechanism of the observed phenomenon.

The question should be specific and testable to guide the subsequent steps.

Hypothesis: In this step, scientists propose a possible explanation or solution to the research question.

The hypothesis is a tentative statement that can be tested through further experimentation or observation.

It should be based on existing knowledge and provide a clear prediction.

Experimentation: Scientists design and conduct experiments to test the hypothesis.

They manipulate variables, control conditions, and collect data to analyze and draw conclusions.

The experiment should be carefully planned, with appropriate controls and statistical methods to ensure accurate and reliable results.

Analysis: After collecting the data, scientists analyze the results using statistical methods or other analytical techniques.

They examine the data to determine if it supports or refutes the hypothesis.

This step involves organizing and interpreting the data to draw meaningful conclusions.

Conclusion: Based on the analysis, scientists draw conclusions about the hypothesis.

If the data supports the hypothesis, it may be accepted as a plausible explanation.

If the data does not support the hypothesis, scientists may revise the hypothesis or propose alternative explanations.

Through this iterative process, scientific knowledge advances and contributes to our understanding of the natural world.

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For an organism that has 18 chromosomes in its body cells and its sex cells have 9 chromosomes, the correct statement is C, Its sex cells are haploid and a result of meiosis.

Haploid cells have half the number of chromosomes as diploid cells. Mitosis is a type of cell division that produces two identical daughter cells. Meiosis is a type of cell division that produces four daughter cells, each with half the number of chromosomes as the parent cell.

In the organism described, the body cells are diploid (18 chromosomes) and the sex cells are haploid (9 chromosomes). This is because the sex cells are produced by meiosis, which is a type of cell division that reduces the number of chromosomes by half. This allows the sex cells to combine with each other to form a new diploid cell, which is the beginning of a new organism.

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Complete question:

An organism has 18 chromosomes in its body cells. Its sex cells have 9 chromosomes.

Which statement correctly explains this?

Its body cells are haploid and a result of mitosis.

Its sex cells are diploid and a result of mitosis.

Its sex cells are haploid and a result of meiosis.

Its body cells are diploid and a result of meiosis.

Answer:

I think false sorry if wrong

The addition of hydrogen peroxide in the cell breaks down the enzymes and causes cell death. The fact that hydrogen peroxide (H2O2) is stable in abiotic environments at room temperature and has a neutral pH makes it stand out from other general toxins. However, it kills cells quickly by producing highly reactive hydroxyl radicals.

Hydrogen peroxide is a byproduct of metabolism that can cause harmful effects. It can fall to pieces to yield hydroxyl extremists that assault significant biochemicals like proteins and DNA. It is also used for catalase tests in bacterial cultures.

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Explanation:

1. Prophase I

2.Interphase

3.Anaphase I

4.Anaphase

5.Telophase II

6.Prophase I

To assist in preserving a negative membrane potential, the sodium-potassium pump undergoes periodic shape changes. Three sodium ions leave the cell three times during each cycle.

The key is the sodium-potassium pump. Three sodium ions are expelled from the cell as two potassium ions are brought in by the pump using ATP as energy. Because the ions are being moved against their chemical gradients, energy is needed.

In fact, three sodium ions travel in many neurons for every potassium ion, three sodium ions are occasionally transported for every two potassium, and two sodium ions are occasionally transported for each potassium ion in a few neurons.

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Mutations are considered important in evolution because they are the ultimate source of genetic diversity.

Answer:

Mutations are one of the fundamental forces of evolution because they fuel the variability in populations and thus enable evolutionary change.

Answer: The answer to this question would be refraction.

The image represents air masses colliding with each other, leading to rapid changes in weather conditions.

The image represents the process of rapid changes in weather conditions occurring. The arrows in the image indicate various elements and phenomena related to these changes.

At the top, the final answer is that the image represents "Air masses are colliding with each other."

1. The arrow labeled "Direction of frontal movement" points right toward the "Cold front" map symbol. This indicates the movement of a cold front.

2. The arrow labeled "Rising warm air in front of cold front" points from the cold front upward into the sky. This signifies the upward movement of warm air.

3. The image also shows the development of clouds due to the upward movement of warm air. This indicates the presence of moisture in the atmosphere.

4. Finally, the image depicts advancing cold air behind the cold front, indicated by an arrow. This cold air is moving in the direction of the warm air.

Putting all these elements together, we can conclude that the image represents air masses colliding with each other. The cold front is advancing and pushing against the warm air, leading to the formation of clouds and changes in weather conditions. This collision between air masses often results in rapid changes in weather patterns, such as storms, rain, or temperature fluctuations.

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The law of superposition states that fossils found in the uppermost layers, i.e., layer A, are more recent than those found in the other layers, so option A is correct for the youngest fossil.

When the environment changes due to climatic changes, animals or plants remain under the rocks, leaving their imprints or hard parts of their bodies, which are later studied to learn about ancestors. The fossils that are present in the lowermost rock layers are the oldest, while the uppermost layer is the youngest as it is newly formed.

As a result, the law of superposition states that fossils found in the uppermost layers, i.e., layer A, are more recent than those found in the other layers, so option A is correct for the youngest fossil.

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What role does human activity play in the rise in global temperatures over the last century?

To answer this question, evidence such as historical temperature data, greenhouse gas emissions data, and climate models can be examined. Additionally, studies on the effects of deforestation, industrialization, and transportation on the environment can be analyzed.

Other factors that may contribute to the rise in temperatures, such as natural climate variability and solar activity, would also need to be considered and evaluated.

Ultimately, a comprehensive analysis of these various factors would be necessary to determine the extent to which human activity has contributed to the observed rise in global temperatures.

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Answer:

Ans.

The given diagram represents a cladogram, which is used to show evolutionary relationships between various organisms or species.

The intersection points between the lines show the common ancestors, which evolved into different organisms at the end of the branches, as A, B, C, D.

The first branch end (A) represents that most primitive organism, while the last  branch end (D) represents the most recent organism.

Thus, the correct answer is option). 'organism A is the most primitive organism.'

Explanation:

The three biomolecules that are used for making ATP are Lipids (fats) , Carbohydrates and Proteins

The biomolecules also known as biological molecules serve a wide range of activities and they vary in shape and their size . It is also considered  essential to life because they help organisms develop, survive, and propagate. The biomolecules interact with one another  which play a role in the development of organisms .

There are four types of biological molecules which are carbohydrates which is used as an energy source , lipids which is used for storage and support , proteins is used for supporting essential vital functions and amino acids are the developing elements that make up proteins and nucleic acids for storing genetic information .

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Tribal warfare decimated indigenous populations played the most significant role in the population trend illustrated in the graph. Therefore, the correct option is option A.

The term "population" is frequently used to describe the total number of people living in a certain location. To estimate the number of the resident population within a particular territory, governments conduct censuses.

The phrase has particular applications in domains like ecology and is also used to refer to plants, animals, and microbes. Tribal warfare decimated indigenous populations played the most significant role in the population trend illustrated in the graph.

Therefore, the correct option is option A.

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Your question is incomplete but most probably your full question was,  

Which of the following played the most significant role in the population trend illustrated in the

graph?

A. Tribal warfare decimated indigenous populations.

B.

Europeans brought infectious diseases to Latin America.

c. The practice of human sacrifice was central to many indigenous religions.

D. A reemphasis on traditional practices such as polygamy led to lower birth rates.

Answer:

vertebrates have backbone and invertebrates don't have backbone

vertebrates eg; goat,fish,cow

invertebrates eg: jelly fish ,snail, earthworm

Answer:

Invertebrates are those that do not possess a vertebral column or backbone while Vertebrates are those where vertebral column or backbone is present.

Invertebrates are those that do not possess a vertebral column or backbone while Vertebrates are those where vertebral column or backbone is present.The main difference between vertebrates and invertebrates is that invertebrates, like insects and flatworms, do not have a backbone or a spinal column. Examples of vertebrates include humans, birds, and snakes.

Answer:

because...it looks like dinosaurs and I think that they eat plants

Explanation:

may i please have brainliest? thank you and have a great day!

Answer:

Role of RNA in Biology. ... RNA is a unique polymer. Like DNA, it can bind with great specificity to either DNA or another RNA through complementary base pairing. It can also bind specific proteins or small molecules, and, remarkably, RNA can catalyze chemical reactions, including joining amino acids to make proteins.

Explanation:

RNA determines the sequence of amino acids in proteins and polypeptides by a two- step process: transcription of DNA produces mRNA in the nucleus, then translation of the mRNA to tRNA takes place at the ribosome in the cytoplasm.

Hope it helps.

Answer:

Which whale traits evolved much later?

Nostrils shifted back toward top of skull; hind legs reduced, then eliminated; forelimbs become paddle like; strong swimming tail with flukes form.

Answer:

Glaciers cause erosion by plucking and abrasion. Valley glaciers form several unique features through erosion, including cirques, arêtes, and horns. Glaciers deposit their sediment when they melt. Landforms deposited by glaciers include drumlins, kettle lakes, and eskers.

Explanation:

Glaciers cause erosion by plucking and abrasion. Valley glaciers form several unique features through erosion, including cirques, arêtes, and horns. Glaciers deposit their sediment when they melt. Landforms deposited by glaciers include drumlins, kettle lakes, and eskers.

Since it's most of the topic of concern that currently exists on the subject of the use and production of plastic products are addressed in the text, it can be affirmed that the setence constructed is correct.