BIOLOGY HIGH SCHOOL

Why has the atomic model changed over time?

Answers

Answer 1
Answer: Through experiments, it was found that atoms are made up of even smaller particles, so the atomic model changed due to our incorrect assumptions about its form.

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Which of the following is/are author/s of American literary realist fiction? A. Mark Twain B. William Bradford C. Sarah Orne Jewett D. Charles Waddell Chesnutt
A pH of 2 indicates a(n) _____.
Which of the following structures is considered to be the fundamental building block of the nervous system?a.soma  b.neuron  c. axon terminals  d. dendrites  d. neurotransmittersPlease explain its function.
Which of the following method of reproduction is common to paramecium and amoeba? (A) conjugation (B) sexual reproduction (C) binary fission (D) budding (E) figamentation ​
The graph shows the population of alligators and insects in a pond ecosystem where cricket frogs live. How will this impact the population of cricket frogs over time?A graph with the title Species Population is shown. The y axis title is Population and next to it is an arrow pointing upwards. The x axis title is Year and the values 1, 2, 3 4. 5 are marked on the x axis. A solid slanting graph line is shown sloping gently upwards. A straight broken graph line is shown. A key is shown at the bottom right of the graph. Next to the straight line is written Alligators and next to the broken line is written Insects.

A symbiotic relationship in which one species benefits and the other is harmed but not immediately killed is known asmutualism.
predation.
commensalism.
parasitism.

Answers

This type of a relationship where only one species benefits and the other is harmed is known as parasitism. The other species is not killed immediately, at least not as long as the first species, or the parasite, needs them. As long as the victim provides enough sustenance for the parasite to live, they will be necessary and not killed off. The moment the victim has nothing else to offer to the parasite, it is probably going to die.

A symbiotic relationship in which one species benefits and the other is harmed but not immediately killed is known as parasitism.

What is parasitism?

Parasitism is a type of ecological relationship where one species is harmed and the other is benefited by this interaction.

  • Predation is another type of ecological relationship where one species known as the predator, kills and eats another organism called prey.

  • Commensalism is a type of ecological relationship where one organism benefits and the other organism neither benefits nor harm.

In conclusion, a symbiotic relationship in which one species benefits and the other is harmed but not immediately killed is known as parasitism.

Learn more about parasitism here:

brainly.com/question/16712707

Which of these structurea would you find in a nobvascular plant?A.stems B.leaves C.rhizoids D.roots

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I'm assuming you mean non-vascular plants, since that is the case.. the answer is rhizoids.

Non-vascular plants have rhizoids that anchor them to the ground AND absorb water and minerals.

How do active and passive transport differ? is osmosis active or passive

Answers

Well, the cell membrane is full of a bunch of little holes. Sort of like a coffee filter.

What does a coffee filter do? Well, you put the coffee in it and run water through it. Then what?

The water is small enough to pass through the filter and bring some of the coffee with it. But the coffee grains are too big to pass through the filter. If we really wanted the coffee grains to get through the filter, we could force them through. Do you want chunks in your coffee? Eww. 

Now the cell membrane is the same way, the little things (water, carbon dioxide, oxygen, sugar) are all small enough to fit through the tiny holes in the cell membrane. This is called, "Passive Transport". Because the things can passively float their way in and out of the cell.

Now some other things are too big to fit through, so to make them fit, the cell has to use energy to open itself a little bit more to let them in. This is called, "Active Transport". Because the cell needs to be active and use energy to let those things in.

Now Osmosis is the transfer of water and salts (basically) throughout the cell.
Both Salt and Water are small enough to fit through the Cell Membrane using "Passive Transport".

I've posted this same response earlier, and it is my writing.

Answer: Passive Transport - Taking the Easy Road. While active transport requires energy and work, passive transport does not. There are several different types of this easy movement of molecules. It could be as simple as molecules moving freely such as osmosis or diffusion.

Basophilic stippling is seen in which excess

Answers

Answer/ Explanation: Basophilic stippling is seen in excess of certain substances, such as lead or other heavy metals, in the body.

1. Basophilic Stippling: Basophilic stippling refers to the presence of small, dark blue or purple granules in red blood cells (RBCs) when viewed under a microscope. These granules are aggregates of ribosomes and RNA, and they appear as tiny dots or speckles within the RBCs.

2. Lead and Heavy Metal Poisoning: Basophilic stippling is commonly associated with lead poisoning or exposure to other heavy metals like arsenic or thallium. When these substances enter the bloodstream, they can affect the production and function of RBCs in the bone marrow.

3. Mechanism: The exact mechanism by which lead or other heavy metals cause basophilic stippling is not fully understood. However, it is believed that these substances interfere with the normal synthesis and maturation of RBCs, leading to the accumulation of ribosomes and RNA in the cells.

4. Diagnostic Significance: The presence of basophilic stippling in RBCs can be an important diagnostic clue for lead or heavy metal poisoning. It is often observed in blood smears of individuals with chronic exposure to these toxic substances. However, it is important to note that basophilic stippling is not specific to lead poisoning and can also be seen in other conditions such as certain anemias or myelodysplastic syndromes.

In summary, basophilic stippling is observed in excess of substances like lead or other heavy metals in the body. It is a microscopic finding characterized by the presence of small granules within red blood cells. The identification of basophilic stippling can be a useful indicator for the presence of lead or heavy metal poisoning, although further diagnostic tests may be required for confirmation.

What is the advantage of binary fission for prokaryotes? They can fight disease.
They can adapt easily to any environment.
They can vary their shapes.
They can reproduce quickly.

Answers

The advantage of binary fission for prokaryotes would be that they can reproduce quickly.

They can reproduce quickly.

Which kind of muscle fibers enable the muscles to exert force for a long period of time? fast twitch slow twitch

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The correct answer is slow twitch.  

There are generally two types of skeletal muscle fibers present in the body of humans. These are slow twitch fibers and the fast twitch fibers. The slow twitch fibers in the muscle allow the long endurance responses to the muscles, on the other hand, the fast twitch fibers generate a fast response in the muscles.


The question says, which kind of muscle fiber enable the muscle to exert force for a long period of time. The correct option is 'slow switch'. The slow switch muscle enable one to participate in long endurance feats such as long distance running. These muscles are red in colour because of the high quantity of myoglobin found in them.
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