A student astronomer went outside and made two observations of the Moon that were several days apart. Her observations are shown in the diagram above. The light part of the Moon appeared to get smaller over time. Why did this happen?

Answers

Answer 1

Answer:

The light part of the Moon appeared to get smaller over time because of the change in the relative position of the Moon, the Sun, and the Earth. This is known as the lunar phase. The changing appearance of the Moon from the Earth's perspective is caused by the Moon's orbit around the Earth and the position of the Moon and Sun relative to the Earth. The Moon's phases are caused by the angle between the Moon, Earth, and Sun changing, as the Moon orbits the Earth. When the Moon is between the Earth and the Sun, the side facing the Earth is not illuminated by sunlight, so it appears dark, and this is called a new moon. When the Moon is on the opposite side of the Earth from the Sun, the entire side of the Moon facing the Earth is illuminated by sunlight, so it appears full, and this is called a full moon. As the Moon moves in its orbit, the angle between the Sun, Earth, and Moon changes, causing the illuminated portion of the Moon visible from the Earth to change, leading to different lunar phases.


Related Questions

which measurement is likely the least accurate? Explain.
What observations and/or patterns do you see in the data?

Answers

Based on the information, we can infer that the measurement that could be the least probable is caudal peduncie depth strandard error. Also, the trend is for lake values to be higher than river values.

What difference do we see in the values in the table?

To identify the values we must analyze the table and identify they are not the trends. In this case we can infer that the tendency is for the values of the lake to be higher than the values of the river because all the values of the lake are higher than those of the river.

On the other hand, we can infer that the value that could be the least successful is the peduncie depth strandard error because it shows equal values. However, if we take into account the previous values, it should not be the same in both cases.

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8.) Which vertebra is the axis?

Answers

The axis is the second cervical vertebra (C2) in the vertebral column.

What is meant by the term vertebra?

One of the tiny bones in your spinal column is called a vertebra, and your back is made up of vertebrae. Your body is made up entirely of bones.

A disc separates every vertebra from the next. The spinal cord is encased in and secured by the vertebrae.

In contrast to having a single bone or solid spine, having several vertebrae in the backbone enables one to bend and turn their body.

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What causes the earths cycle of the day and night? Select the words from the drop down menus to correctly complete the explanation.

Answers

Answer: The cycle of day and night on Earth is caused by the rotation of the Earth on its axis. As the Earth rotates, different parts of the planet are exposed to the Sun's light, causing daylight in some areas and darkness in others.

In prokaryotes, what type of RNA can and cannot be be used ? How about for Eukaryotes?



Thanks!

Answers

In prokaryotes, the type of RNA that can and cannot be used are dependent on the function it serves.In prokaryotes, three types of RNA can be used whereas RNA that doesn't undergo alternative splicing, such as rRNA, snRNA, and snoRNA, is not used in eukaryotes.

Prokaryotes are unicellular organisms that do not have a nucleus or membrane-bound organelles. The genetic material is present in the cytoplasm and is arranged in a single, circular DNA molecule. As a result, the RNA transcription and translation occurs in the same location. As a result, there is no alternative splicing or post-transcriptional modification.

Hence, all RNAs are synthesized from a single, uninterrupted gene.In prokaryotes, three types of RNA can be used: Messenger RNA (mRNA) transcribes the genetic information from DNA, which is then translated into a protein. Ribosomal RNA (rRNA) is a major component of ribosomes and is essential for protein synthesis. Transfer RNA (tRNA) is a specialized RNA molecule that carries amino acids to the ribosome during translation. In prokaryotes, RNA that undergoes splicing, such as hnRNA or pre-mRNA, is not used.Eukaryotes are multicellular organisms that have a nucleus and membrane-bound organelles.

Eukaryotic cells have linear DNA arranged into chromosomes and are located in the nucleus. RNA transcription occurs in the nucleus, while translation occurs in the cytoplasm. Eukaryotes also have alternative splicing and post-transcriptional modification. So,RNA that doesn't undergo alternative splicing, such as rRNA, snRNA, and snoRNA, is not used in eukaryotes. Eukaryotes have five types of RNA that can be used: Messenger RNA (mRNA), Ribosomal RNA (rRNA), Transfer RNA (tRNA), Small nuclear RNA (snRNA), and Small nucleolar RNA (snoRNA). RNA that doesn't undergo alternative splicing, such as rRNA, snRNA, and snoRNA, is not used in eukaryotes.

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Give two possible ways that negative human impact on the pH of Earth’s oceans can be reduced.

Worth: 15 points

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Answer:

There are several ways in which negative human impact on the pH of Earth's oceans can be reduced. Here are two possible approaches:

Reducing carbon dioxide (CO2) emissions: The primary cause of ocean acidification, which lowers the pH of the oceans, is the increased absorption of CO2 from the atmosphere. To address this, it is crucial to reduce carbon dioxide emissions at their source. This can be achieved by transitioning to cleaner and renewable energy sources, promoting energy efficiency, and implementing policies to limit greenhouse gas emissions from industries, transportation, and power generation. By reducing CO2 emissions, we can slow down the rate of ocean acidification.

Promoting sustainable fishing and aquaculture practices: Overfishing and destructive fishing practices can disrupt marine ecosystems and contribute to the decline in ocean health. By promoting sustainable fishing practices, such as implementing fishing quotas, protecting marine reserves, and avoiding the capture of non-target species (bycatch), we can maintain the ecological balance of marine ecosystems. Additionally, supporting responsible and sustainable aquaculture practices that minimize environmental impacts and avoid the use of harmful chemicals can help reduce the negative human impact on ocean pH.

It's important to note that these are just two examples, and addressing ocean acidification requires a multi-faceted approach involving various stakeholders, including governments, industries, scientists, and individuals. Other measures, such as protecting coastal habitats, reducing pollution runoff, and raising awareness about the importance of ocean conservation, can also contribute to mitigating the negative human impact on ocean pH.

Explanation:

If all the grass disappeared from this community, which change would be
most likely to occur?
squirrel
coyote cougar
mouse deer
XIA
acorns
grass
mushrooms
OA. The squirrel population would decrease.
OB. The coyote population would increase.
OC. The cougar population would stay the same.
OD. The deer population would decrease.

Answers

Answer:

If all the grass disappeared from a community, the most likely change to occur would be that the deer population would decrease. This is represented by option D. Deer are herbivores and rely on grass and other vegetation as a primary food source. Without grass, the deer would have less food available, which could lead to a decrease in their population. This could also have a cascading effect on other species in the community, such as predators that rely on deer as a food source.

Explanation:

How do ribosomes create a mutation & how is this mutation controlled?

Answers

Ribosomes do not directly create mutations, but cellular mechanisms such as DNA repair and checkpoints help control and minimize the occurrence of mutations.

Ribosomes themselves do not directly create mutations. Mutations, which are changes in DNA sequence, can occur due to errors during DNA replication or from external factors like radiation or certain chemicals. However, the cellular machinery, including ribosomes, plays a role in the control of mutations through various mechanisms. DNA repair mechanisms help identify and correct errors or damage in the DNA sequence, reducing the likelihood of mutations. Additionally, cellular checkpoints and regulatory processes monitor and control cell division, ensuring that accurate DNA replication and distribution occur, minimizing the inheritance of mutations to daughter cells.

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I need you to make riddles with the following 7 words. Each riddle should have four lines where the last line is "what/who am I?" these are the words the work is about biology so try to make it deep.
-cancer
-ligament
-osteoporosis
-osteomalacia
-achondroplasia
-ostemilitis
-osteogenic sarcoma

Answers

I am the silent thief, consuming life's essence,

A symbol of chaos, I breed in the dark,

Cells divide uncontrollably, my mark,

Cancer, the destroyer, a ruthless presence in disguise.

In the body I connect, strong and true,

Supporting movements, aiding you,

Flexible yet firm, holding tight,

Ligament, the guardian, in shadows out of sight.

Brittle bones crumble, a silent decay,

Weakening structure, as time slips away,

Fragility reigns, a fortress breached,

Osteoporosis, the thief, silently reached.

Softness pervades, my presence felt,

Bones malformed, as strength slowly melts,

Whispers of pain with each step I tread,

Osteomalacia, the ghost, lingering with dread.

In stature I falter, a different form,

A genetic tale, an anomaly born,

Limbs limited, yet spirits strong,

Achondroplasia, the challenge, that shapes me lifelong.

Inflammation festers, a battle unseen,

Bone becomes battlefield, engulfed in routine,

Infection's grip tightens, as warriors engage,

Osteomyelitis, the warzone, with each passing age.

From the depths I emerge, a dark, vile spawn,

Tumor invades bone, a menace withdrawn,

Cells rebel, multiply, taking hold,

Osteogenic sarcoma, the demon, fierce and bold.

1. Cancer:

I am the silent thief, consuming life's essence,

A symbol of chaos, I breed in the dark,

Cells divide uncontrollably, my mark,

What am I?

2. Ligament:

In the body I connect, strong and true,

Supporting movements, aiding you,

Flexible yet firm, holding tight,

Who am I?

3. Osteoporosis:

Brittle bones crumble, a silent decay,

Weakening structure, as time slips away,

Fragility reigns, a fortress breached,

What am I?

4. Osteomalacia:

Softness pervades, my presence felt,

Bones malformed, as strength slowly melts,

Whispers of pain with each step I tread,

Who am I?

5. Achondroplasia:

In stature I falter, a different form,

A genetic tale, an anomaly born,

Limbs limited, yet spirits strong,

What am I?

6. Osteomyelitis:

Inflammation festers, a battle unseen,

Bone becomes battlefield, engulfed in routine,

Infection's grip tightens, as warriors engage,

What am I?

7. Osteogenic Sarcoma:

From the depths I emerge, a dark, vile spawn,

Tumor invades bone, a menace withdrawn,

Cells rebel, multiply, taking hold,

What am I?

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describe event that occur in D1 S and G2 stage of interphase

Answers

The interphase of a cell's life cycle consists of three stages, G1, S, and G2. The primary function of the G1 phase is to prepare the cell for DNA synthesis, while the S phase is devoted to DNA replication. The G2 phase, on the other hand, is dedicated to finalizing preparations for cell division.

DNA damage or incompleteness in the process may cause cell cycle arrest and/or apoptosis. Here is a description of the events that occur in each of these three stages of interphase.G1 Phase:G1 is the first stage of interphase, which occurs immediately after the completion of cell division (mitosis). During G1 phase, cells prepare themselves for the S phase by making the essential proteins and enzymes required for DNA replication. Furthermore, cells often require additional energy and nutrients to prepare themselves for DNA synthesis. The cells must also check for any DNA damage and ensure that the DNA is not malformed or incomplete.S Phase:The S phase occurs directly after the G1 phase, during which DNA replication occurs.

DNA polymerase is the enzyme that catalyzes DNA replication. After replication, each chromosome in the nucleus has two sister chromatids that are tightly bound together and are identical. At this point, the cell will verify that all of its DNA has been successfully replicated and that no abnormalities or errors exist.G2 Phase:The G2 phase of interphase is the last stage before mitosis, where the cells make last-minute preparations for cell division. During this phase, cells continue to grow and prepare for mitosis. The cell checks the replicated DNA for any mistakes and ensures that it is ready for cell division. Once this is done, the cell's microtubules are reorganized into the mitotic spindle, which will aid in cell division. Finally, the cell undergoes cell division, resulting in two daughter cells, each with a complete set of chromosomes.

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Science enables us to answer ____________________ or ____________________ questions. Empirical questions require quantitative data and qualitative data.

Answers

Explanation:

Science enables us to answer empirical questions or testable questions. Empirical questions are those that can be answered through observation, experimentation, and the collection of empirical evidence. These questions seek to understand the natural world, its phenomena, and the relationships between variables.

Empirical questions can be further divided into two types: quantitative and qualitative. Quantitative questions focus on numerical data and measurable variables. They seek to determine the extent or magnitude of a phenomenon, the presence of a relationship, or the effect of one variable on another. These questions often involve statistical analysis and the use of mathematical models to draw conclusions.

On the other hand, qualitative questions explore subjective experiences, meanings, and interpretations. They aim to understand the nature of a phenomenon, the motivations behind certain behaviors, or the lived experiences of individuals. Qualitative research methods involve in-depth interviews, observations, and the analysis of textual or visual data to generate rich and descriptive insights.

Science relies on the systematic application of the scientific method to investigate empirical questions. This method involves formulating a hypothesis, designing experiments or studies, collecting data, analyzing the data, and drawing conclusions based on evidence. Through this rigorous process, science helps us gain knowledge, make informed decisions, and advance our understanding of the world around us.

It's important to note that not all questions can be answered through scientific means. There are philosophical, ethical, and subjective questions that fall outside the realm of empirical inquiry. Science provides a powerful tool for exploring and explaining the natural world, but it has its limitations and cannot address all aspects of human existence.

i need help doing this lab im confused. please help.

Answers

The percentage of monocytes is increased from the normal range. The normal range for monocytes is 2-8%, but Alexi's count is 21%. This suggests that his body is fighting an infection.

How to explain the information

Monocytes are a type of white blood cell that helps to fight infections. They do this by engulfing and destroying bacteria and other foreign invaders.

In Alexi's case, the percentage of monocytes is still elevated, suggesting that the infection is still ongoing. The type of microorganism causing Alexi's infection is not known for sure, but it is likely to be a bacteria. Bacteria are the most common cause of infections, and they are typically more difficult to fight off than viruses.

Paolo would report that his throat is sore. This is a common symptom of a viral infection. The pain is caused by inflammation of the tissues in the throat. Two signs of inflammation that would be observed in Paolo's throat are redness and swelling.

In conclusion, Alexi's increased percentage of monocytes suggests that he has a bacterial infection that has been going on for some time. Paolo's sore throat, redness, swelling, and increased body temperature are all signs of a viral infection.

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