BIOLOGY MIDDLE SCHOOL

1. What are some special structures within a cell?2. What is step three in the scientific method (explain the process)

3. Do cells make up all living things? (Use CER for this question)

Answers

Answer 1
Answer:

Step 3: State your hypothesis

The hypothesis is often written using the words "IF" and "THEN." For example, "If I do not study, then I will fail the test." The "if' and "then" statements reflect your independent and dependent variables. The hypothesis should relate back to your original question and must be testable.
Answer 2
Answer: 1. What are some special structures within a cell?

Answer:
different types of cells have different structures but I’m going to assume this is on animal cells. The cell has tons of special structures, but some simpler ones are; nucleus, cell membrane, ribosome, cytoplasm, mitochondrion. I’ll attach a diagram!

2. What is step three in the scientific process

Answer:
The scientific process is as follows
1. Observation
2. Question
**3. Hypothesis**
4. Experiment
5. Conclusion
6. Result

3. Do cells make up all living things? (Use CER for this question)

Answer:
Yes they do!

From my understanding CER is cite, explain reasoning. I don’t know if your teacher provided you with material to cite but you should probably use your class textbook or any other recent class reading. Here’s a graphic organizer for your written answer

Cite: [quote from the text with page number]

Explain: explain why cells make up all living things, using the quote as evidence.

Reasoning: explain how the text connects to your claim.

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Why is free oxygen a problem for many organisms

Answers

Answer:

Oxygen is essential for respiration because the body uses it to 'burn' food molecules. Animals take in oxygen when inhaling and give off carbon dioxide when exhaling. ... This is why rescue breathing works - it can supply a non breathing patient with enough oxygen to support life.Nitrogen is essential for all living things because it is a major part of amino acids, which are the building blocks of proteins and of nucleic acids such as DNA, which transfers genetic information to subsequent generations of organisms.

Explanation:

Free oxygen can be problematic for organisms due to its high reactivity and the production of reactive oxygen species (ROS), causing oxidative stress and various health problems. Excess free oxygen can lead to diseases in humans, while some organisms cannot tolerate free oxygen at all and will die if exposed to it.

Free oxygen can be a problem for many organisms due to its high reactivity. In aerobic organisms, free oxygen can lead to the production of reactive oxygen species (ROS) such as superoxide radicals, hydrogen peroxide, and hydroxyl radicals, which can damage cellular structures and molecules, including proteins, lipids, and DNA. This can result in oxidative stress and lead to various health problems.

For example, in humans, excess free oxygen can cause damage to cells and tissues, leading to diseases such as cancer, cardiovascular disease, and neurodegenerative diseases. Organisms that have evolved to survive in low-oxygen environments, such as certain bacteria and parasites, may be particularly sensitive to the presence of free oxygen and can even be killed by exposure to high levels of it.

In contrast, other organisms, such as obligate anaerobes, cannot tolerate the presence of free oxygen at all and will die if exposed to it. These organisms lack the enzymes and metabolic pathways required to deal with the toxic effects of oxygen. Examples of obligate anaerobes include some types of bacteria that live in environments without oxygen, such as deep-sea hydrothermal vents or the intestines of animals.

Learn more about Free oxygen here:

brainly.com/question/32386866

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I REALLY NEED I JUST HAVE TO DO TWO MORE STUFF TO FINISH SCIENCE BUT I STILL NEED TO ALGEBRA I HAVE UNTIL FRIDAY TO FINISH SCIENCE AND ALGEBRA IF I DONT FINIH ALGEBRA AND SCIENCE I WILL NEED TO PAY 100 IN TOLTAL BUT I FINISH SCIENCE TODAY JUST 50 PLEASE HELP I BEG YOU.Materials needed:

Large glass measuring cup (2 cups or bigger)
Blue food coloring
Vegetable oil (any type of cooking oil)
Liquid dish detergent


Procedure:
(4 points for each question)

Fill the cup two-thirds of the way with water. Add a few drops of blue food coloring to make your “ocean.”
Pour 1/3 cup of oil into the ocean.


Answer the following questions:
What happens to the oil when you first pour it in?
Why does this happen?
What kinds of animals would be most affected by an oil spill at the beginning? Why?
Use a spoon to stir the oil for 30 seconds.


Answer the following questions:
What natural action stirs the real ocean?
What happened to the oil?
Even if you can’t see it, is all the oil still in your ocean?
Which animals in the ocean become affected after wave and current action causes some of the oil to settle to the bottom, or be absorbed into the water?
Add a splash of dish detergent to the mixture and stir.


Answer the following questions:
What happened to the oil? Is it all still in the ocean?
Sometimes cleanup efforts involve dumping a soap mixture over a spill area. Why is this done?
What might be a negative effect of dumping the soap?
Submit this assignment to your teacher when you are finished.

NextPrevious

Answers

we know that oil floats on water and do not mix

What happens to the oil when you first pour it in? It flows into the water, but then seperates.

Why does this happen? oil is lighter than water and the molecules of the oil are attracted to the other oil molecules, not water, the water molecules the same

What kinds of animals would be most affected by an oil spill at the beginning? animals that live their lives near the surface of the ocean. Why? because now the water that was clear and free-flowing is now dark and sticky. oil also changes the way how some animals survive so make their ways less effective. one example are birds like pelicans

Use a spoon to stir the oil for 30 seconds.


Answer the following questions:
What natural action stirs the real ocean? ocean currents caused by wind and the earth's roation
What happened to the oil? went back to the top
Even if you can’t see it, is all the oil still in your ocean? yes
Which animals in the ocean become affected after wave and currentaction causes some of the oil to settle to the bottom, or be absorbedinto the water?  bottom-feeders
Add a splash of dish detergent to the mixture and stir.


Answer the following questions:
What happened to the oil? it mixed with the water Is it all still in the ocean? yes
Sometimes cleanup efforts involve dumping a soap mixture over a spill area. Why is this done? to bond the oil to the detergent and the detergent to the water. so they can grab all the oil
What might be a negative effect of dumping the soap? soap has chemicals that could upset the ballance of the ecosystem and kil some animals/plants

Which structure is part of the cell’s skeleton?Question 11 options:

Golgi apparatus

microfilaments

plasma membrane

mitochondria

Answers

Answer:

The correct answer is microfilaments.

Explanation:

The cytoskeleton of our play a significant role in providing mechanical support and maintaining the proper shape of the body cells.

      Cytoskeleton is composed of mitrotubules, microtubule and intermediate filaments.

       Microfilaments are also known as actin filaments that composed of actin polymer that interacts with myosin during muscle contraction.

     Microtubules also helps in cytokinesis,cell movement,maintenance of cell shape,cellular contraction and relaxation.

What is phylum? Explain.

Answers

A principal  taxonomic category that ranks above class and below kingdom
a principal taxonomic category that ranks above class and below kingdom, equivalent to the division in botany.

While excavating an area in the desert, a scientist discovers the fossils of very large tress and ferns. What might the scientists conclude about biomes in this area?

Answers

Large trees and ferns need water to survive. This suggests that the biome was once very different from the desert it is today. #globalwarming lol

Answer:

stay safe out there in 2020. hope your all safe. Have a bless day.

Explanation:

a scientist hypothesized the temperature at which an alligator egg is incubaed will determine whether the alligator will be a male or female.What is the dependent ?

Answers

the gender of the alligator. that is what is being tested and what will change based on the independent or temperature

Answer:

The sex of the alligator

Explanation:
Other Questions
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The strongest evidence for evolution from a common ancestor is
Read the passage to answer the question. Even though scorpions are related to spiders, there are many differences between the two organisms. One difference is that scorpion young do not hatch from eggs as spiders do. Scorpions are born live, two at a time, and they immediately crawl onto the mother's back for protection and care. They remain there for two weeks as they grow big enough to take care of themselves. Question 2 Baby scorpions are born with fully developed bodies, each with many special parts such as a stinging tail. Which process enables baby scorpions to develop various kinds of body parts from a single zygote?
The varicella virus is a common childhood virus that causes chicken pox. Shingles, a disease alsocaused by varicella, often occurs in adults. What does this indicate about the varicella virus?It is a bacterioptrage.It undergoes a lysogenic cycle.H.It does not contain a viral envelope.J.It does not kill host cells after infection.