Both amoebas and bacteria are single-celled, microscopic organisms that lack membrane-bound organelles and have a single circular chromosome of DNA. Amoebas are characterized by their pseudopodia used for locomotion and feeding, while bacteria can have flagella for movement.
One characteristic that describes both amoebas and bacteria is that they are both single-celled, microscopic organisms. Amoebas, or Amoebozoa, are eukaryotic organisms characterized by their ability to form pseudopodia, which are temporary, limb-like extensions of the cytoplasm that help in locomotion and feeding.
Bacteria, on the other hand, are prokaryotic organisms that also have a variety of shapes and can move using structures such as flagella. Both organisms lack membrane-bound organelles and have a single circular chromosome of DNA, although amoebas as eukaryotes do have a defined nucleus while bacteria as prokaryotes do not.
Amoebozoa can exist in freshwater, marine environments, and soil, and they utilize their pseudopodia for movement similarly to the way some other protists use organelle movements to navigate or distribute nutrients.
Amoebas, especially Dictyostelium discoideum, exhibit fascinating life cycles that include both solitary and aggregated social behaviors in response to environmental conditions.
The amoebas can even form multicellular 'slugs' during the social cycle phases of their life, representing their capacity for complex interactions and adaptability. Bacteria also display a variety of behaviors, including social interactions and complex colonies known as biofilms.
In winter, some communities spread salt on the roads to melt ice. Runoff containing salt can flow into nearby streams or lakes. Is this an example of point source or nonpoint source pollution? Explain.
the process of osmosis would explain the net movement of water into a cell if the percentage of
Osmosis involves the movement of water from a region of lower concentration to a region of higher concentration across a selectively permeable membrane.
The net movement of water into a cell would occur if the percentage of water was 90% inside the cell and 95% outside the cell.
The flow of water is in response to differences in solute concentration on either across a selectively permeable membrane. A net movement is then achieved if sufficient water has moved to equalize the solute concentration.Learn more about osmosis: https://brainly.com/question/19164620
When two objects collide, the momentum of the system remains constant. This is a statement of
Question 16 options:
Newton's third law
the conservation of momentum
impulse
a change in momentum
The statement that momentum remains constant in a collision with no external forces refers to the principle of the conservation of momentum, a fundamental concept in classical mechanics.
Explanation:When two objects collide and there are no external forces acting on them, the statement that the momentum of the system remains constant is a principle known as the conservation of momentum. This principle is a cornerstone of classical mechanics and indicates that the total momentum of a closed system will not change as a result of interactions within the system. An example of this can be seen when two cars collide; car one may slow down, losing momentum, while car two speeds up, gaining momentum. Despite these individual changes, the total momentum of the car system remains constant, assuming all forces between them are internal to the system.
UMMM who's good at science?!?!?!
What causes the convection cell to turn up at point A?
Why do you think this convection cell might affect the crust material above it??
Which two structures would provide a positive identification of an animal cell under a microscope?
A, nucleus, vesicle
B, flagellum, lysosome
C, chromatin, chloroplast
D, ribosome, lysosome
The prefix photo- means "light". The root word synthesis means "putting together". How could knowledge of these word parts help you define the word photosynthesis?
Photosynthesis can be understood as 'putting together with light', as it is a process where green plants and certain organisms synthesize foods using sunlight.
Explanation:Understanding the meanings of word parts can greatly assist in knowing the definition of a whole word. In the context of the term photosynthesis, the prefix 'photo-' means 'light' and the root word 'synthesis' means 'putting together'. Therefore, if we combined these meanings, we could interpret photosynthesis as 'putting together with light'. In biological terms, photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll pigments. Essentially, they are 'putting together' nutrients using 'light'.
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How did Watson and Crick's approach to figuring out the DNA molecular structure differ from Rosalind Franklin
Watson and Crick's approach to discovering the molecular structure of DNA, which differs from Rosalind Franklin's search for the experimental part of DNA.
Watson and CrickWatson and Crick had a definite scientific goal: to try to decipher the structure of DNA. For this, they seek empirical information at a seminar at King's College (held on November 21, 1951), in which Franklin presented some results of the investigation he was doing with his assistant Raymond Gosling.
FranklinFranklin had already made another fundamental discovery, which in a way explained why other researchers before him had not achieved better results with X-ray diffraction for DNA. Franklin discovered that DNA came in two forms: a "dry" form, which he called form A, and a more hydrated form, which he called form B.
With this information, we can conclude that Watson and Crick's approach to discovering the molecular structure of DNA was to discover the helical shape of DNA, which differs from Rosalind Franklin's search for the experimental part of DNA.
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Paralysis and the Central Nervous System In this assignment, you will prepare a presentation about paralysis and its relation to the central nervous system. Your Report will answer questions such as, "What diseases cause paralysis?" "How does the disease damage the central nervous system?" and "what treatments can help reverse paralysis?" The presentation should be seven slides in length. The slides should include the following things: 1. Title 2. Introduction- an overview of the presentation 3. Causes- an overview of 1 to 2 treatments for paralysis 4. Causes and the nervous system- describes how the nervous system is affected, using scientific terms 5. Treatments- an overview of 1 to 2 treatments for paralysis 6. Effectiveness of treatments- describes how the treatments affect the parts of the nervous system to reverse paralysis 7. Conclusion Remember to make a list (bulleted, numbered, etc) on each slide. The slides should feature The highlights of the main idea. The bullet points should be short phrases (at most, one sentence) that highlight some key points.
1. Introduction: Paralysis is when your body looses its ability to move properly. In this presentation I will teach you about paralysis and the properties that make such an interesting disease.
2. What diseases cause paralysis?: Paralysis is usually caused by damage in the nervous system or spinal cord. Another thing that can cause paralysis are stroke, poliomyelitis, cerebral palsy, Parkinson's disease, and many more. These diseases are very harmful to the human body.
3. How does the disease damage the central nervous system?: Paralysis happens when communication between the brain and spinal cord is blocked. Usually by blood clots. When this happens a stroke can occur. But if it damages your spinal cord you could loose all feeling on the lower side of your body.
4. What treatments can help reverse paralysis?: So far there are no treatments that can fully reverse paralysis, but there are rehabilitation treatments. such as Physical therapy and Occupational therapy.
5. What do these treatments do?: Physical Therapy use massages, heat and exercise as a way to stimulate nerves and muscles. Sometimes this can help them get feeling back. Occupational Therapy helps people learn to do every day things again.
6. Conclusion: While I was reading about how paralysis works it occurred to me that so many people suffer not being able to move. I have you have learned a lot from my presentation.
I hope this help:D
I need help on these questions, I don't understand.
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B=
C=
D=
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The temperature at 6:00 a.m. was –12°F. By 3:00 p.m. the temperature had risen 21°F.
What was the temperature at 3:00 p.m.?
Answer:
I believe the answer is 9°F
Explanation:
I hope this helps you!
In this equation for photosynthesis, where does the first product come from and what happens to it in the photosynthetic process?
6CO2 + 6H2O → C6H12O6 + 6O2
Glucose is formed right after the Calvin cycle.
Carbon dioxide comes from the air and is broken down in the Calvin cycle.
Oxygen is released as a gas after water is split.
Water is split to drive NADP to NADPH conversion, which is formed in the Calvin cycle.
Answer:
The correct answer would be Carbon dioxide comes from the air and is broken down in the Calvin cycle.
Photosynthesis can be divided into two steps namely light-dependent and light-independent reactions.
In light-dependent reaction, light energy of the sun is converted into chemical energy (ATP and NADPH). Photolysis of water takes place in this process which releases oxygen as the byproduct.
In light-independent reaction (also called as Calvin cycle), carbon-dioxide obtained from air is broken down and rearrange to fix carbon in the form of glucose. The reaction is catalyzed by the enzyme RuBisCO.
Answer:
b
Explanation:
What is heat? Heat is the energy needed to change the temperature of 1 g of a substance by 1°C. Heat is the average kinetic energy of the particles of a substance. Heat is the total energy of a substance due to the movement of its particles. Heat is the energy that flows between two substances of different temperatures.
Heat is the energy that flows between two substances of different temperatures. Thus, Option D is correct.
What do you mean by heat energy?Heat is a measure of energy. It flows from a warmer object to a cooler object.
The mechanism of heat generation include, with the increase in body temperature followed by the increase in generation of atomic or molecular vibrations.
Thus, these vibrations are then transferred from one part of the body to another, the form of energy where the molecules vibrate and stored is termed as heat.
Due to law of thermodynamics, transfer of heat takes place from higher temperature region to lower.
Heat energy can be use for various activities like cooking, ironing, transportation etc.
The uneven heating of different regions can cause the occurrence of the wind, rain, change of seasons. Thus, Option D is correct.
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choose one Florida landform and explain how water erosion helped it form.
Suppose you are investigating how the diet of hamsters affects how much they run on their hamster wheel. In order to control the experiment, which of these should you do?
A.
Change only the diet of each hamster.
B.
Give all the hamsters the exact same diet.
C.
Only allow some hamsters to run on the wheel.
D.
Compare the behavior of hamsters and gerbils.
Answer:
A. Change only the diet of each hamster.
Explanation:
If you want to know the relationship between the hamsters' feed and the way they run in the wheel of their cages, you should give each hamster a different feed and evaluate the way they behave in the wheel, the speed they run, the time that run, among other factors.
You must offer a different food for each hamster to be able to compare the results, if you give the same food to all hamsters the results can be the same, so you will not be able to compare which food showed the best results and which showed the worst results.
What is the function of DNA polymerase 3 in DNA replication
Final answer:
DNA polymerase III is essential for adding nucleotides to the growing DNA strand during replication and also has proofreading abilities to correct errors, ensuring the accuracy and fidelity of the DNA synthesis process.
Explanation:
The function of DNA polymerase III (DNA pol III) in DNA replication is critical to the process of synthesizing a new DNA strand. DNA pol III adds nucleotides that are complementary to the template strand, ensuring the accurate duplication of the DNA molecule. This enzyme can only extend in the 5' to 3' direction, necessitating the use of primers to initiate the replication process.
During DNA replication, DNA polymerase III also displays proofreading abilities to correct any base-pairing errors, enhancing the fidelity of DNA synthesis. Overall, DNA pol III is responsible for the bulk of DNA synthesis during cell replication, working at impressive speeds and with high accuracy to replicate the organism's genetic material.
Furthermore, elongation during DNA replication happens at a rate of about 1000 nucleotides per second, with DNA polymerase III carrying out this meticulous process and ensuring that the leading and lagging strands are synthesized accordingly.
different types of cells within an organism A are all the same B do not have any function C serve a different function D can survive on their own
If a puddle of water is frozen do the particles in the ice have kinetic energy explain ?