hello help please i’ll mark brainliest!!!

Sound waves propagate from the sound source. The sound through radio comes through the electrical signal, radio wave, and sound wave. Thus, option D is correct.

A sound wave is an acoustic wave that travels through a medium through the disturbance of the particles in a longitudinal direction. A few examples are radio, whisper, rustling, etc.  

The sound waves in radio first get converted into the electrical signal that passes through the circuit of the radio that further gets transferred as radio waves.

These radio waves are the part of the electromagnetic spectrum that travels at a little less speed than light. The radio waves again get converted into sound waves as it leaves the system and reaches the ear of the organism.

Therefore, option D. sound wave → electrical signal → radio wave → sound wave is the correct order.

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Explanation:

is it only vasoconstriction and vasodilation as the answers or are there more?

Carbon cycle controls the amount of carbon dioxide in the atmosphere. These processes are contributory to the carbon cycle in the       environment.

The carbon cycle is nature's method of recycling carbon atoms, which repeatedly go from the atmosphere into Earth's living things and back into it. The majority of carbon is preserved in rocks and sediments; the remainder is preserved in the ocean, the atmosphere, and living things.

Life on Earth is reliant on the carbon cycle. The quantity of carbon that is naturally released from reservoirs is equal to the amount that is naturally absorbed by reservoirs because nature tends to maintain carbon levels in balance. This carbon balance must be preserved for the earth to continue to support life.

Therefore, the carbon cycle is an important chemical cycle.

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Answer:

1. False

2. True

3. True

4. True

Explanation:

1. Not all mutations are bad! Some actually can provide people with advantages.

2. Back to number 1, yes! Some mutations can give you advantages that people would not normally have.

3. Yes! Melanin helps protect our skin from damage from UV rays from the sun. This is why people with lighter skin tend to “tan” or “burn”.

4. Yes! Mutations are often a random process. We cannot determine whether or not someone will be born with or without a mutation.

Answer:

B. Break down the organic matter of dead plants and animal

Answer:

Drag

Explanation:

Drag is a force caused by air that slows objects down

Friction is a major force that slows the object down, air resistance is a type of frictional force.

Air resistance is a kind of frictional force that slows down an object from moving in a particular direction.

During the movement an object has a particular speed for movement, speed depends on how friction works, more friction slows the speed of an object a low friction allows the object to at a particular speed.

Air is a mixture of gases and particles in the atmosphere, these particles create a force during the movement of an object in the air, and these forces decide the actual speed of object movement.

Therefore air resistance is a force that slows the object.

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Answer:

C. structure C, located in the nucleus in Cell A and structure C, located in the cytoplasm in Cell B

Explanation:

This question contains images that depicts an eukaryotic cell (animal) and a prokaryotic cell (bacteria). According to the question, a teacher asked the students to label the structure of each cell that contains the genetic code (DNA) and tell where it is located.

In an eukaryotic cell, the genetic material (DNA) which contains the genetic code is located inside a well defined membranous structure called NUCLEUS while the genetic material in a prokaryotic cell is found naked in a region of the cytoplasm called NUCLEOID as they lack a membrane-bound nucleus. Based on this explanation;

- Structure C is the genetic material (DNA) which contains the genetic code of cell A (eukaryotic cell), hence, the genetic code of cell A is found in structure C, which in turn is located in the centrally-placed NUCLEUS.

- Structure C is the genetic material containing the genetic code of cell B (prokaryotic cell), hence, the genetic code of cell B is found in structure C, which in turn is located in the CYTOPLASM.

Answer:

98.9% sure it's B. as far as I know

Answer:

During cytokinesis, a single cell divides into two daughter cells.

Explanation:

Answer: Mitosis = 2 genetically identical daughter cells,

Meiosis = 4 genetically different daughter cells

Answer:

the water cycle can cause some waters that come from a polluted source to be cycled into aquatic enviroment lowering life quality for the inhabitants.   at least i think so

Explanation:

Answer:

1. 10% 2. 90% 3. 80% 2. Yes 3. Into 3. Swell 6. Hypotonic

Explanation:

1. Given the image, it shows there is 10% glucose outside the cell.

2. Because there is 10% glucose outside the cell, you can automatically conclude that there is 90% of water outside. (You want it to equal to 100%. So, 10 + 90 = 100)

3. Given 20% glucose inside the cell based on the image, you can conclude that there is 80% water inside the cell.

2. Yes, osmosis will occur. Osmosis is the movement of water from a higher concentration to a lower concentration. In this case, there is more water outside the cell than in. So, yes, osmosis will occur.

3. The water will move into the cell (There's less water inside, and more outside, so of course, the water will move in).

3. The cell will swell, since water is getting moved in.

6. This is a hypotonic solution. Definition of a hypotonic solution: The concentration of solutes outside the cell is less than that of water. Hypotonic solutions always swell, as water moves into it.

Hopes this helps!^^ I tried the best I could at explaining.

Answer:

These sharks eat small fishes that come to the level 2 and small planktons as level 1

Explanation:

Answer:

Cellular respiration describes the series of steps that cells use to break down sugar and other  chemicals to get the energy we need to function.  Energy is stored in the bonds of glucose (like a stretched rubber band), and when glucose is broken down, much of that energy is released.  Some of it is captured in a form that can be used to do work in cells - a molecule called adenosine triphosphate or ATP. The energy that is not captured in ATP is usually given off as heat (one of the things that helps us maintain our normal body temperature).

Answer:

B.

Explanation:

Answer:

Keystone

Explanation: keystone

Answer:

Transcription / mRNA production

Explanation:

Hello, 3Coli Here!

Here are your answers:

1. What is a stimulus?

Stimulus is a natural body reaction caused by changes in the environment around or inside the organism. This is a response from the brain.

2. Why does the body respond to stimuli?

The body responds to stimuli, because it needs to protect itself.

3. What are some different types of stimuli?

The two main types of stimuli are external stimuli and internal stimuli. External stimuli are reactions triggered by changes that occur outside of the body, while internal stimuli are reactions triggered by changes inside of the body.

4. What are sensory organs and what type of stimuli do these receptors respond to?

The most commonly used sensory organs include Eyes, Ears, Tongue, Nose, and Skin. Eyes respond to light and motion, because they are used to see. Ears respond to sound, because they hear. The tongue is used to taste, so it senses flavors. The nose is used to smell, so it responds to scents. Finally, the skin is used to feel, so it responds to whatever it feels.  

5. What is an explanation of how the information from stimuli is communicated to the brain?

Neuron receptors convert internal and external environments into electrical signals, and then is sent to the brain through nerves.  

6. What is a description of the two things that can happen when the brain processes the information from stimuli?

After the brain receives the signal, it will provide a response. One type of response is that the body will physically react to the change. The second type of response is to avoid the change.

Hopefully, this helps! :D

Ask your question below!

Answer:

All of these

Explanation:

If you put all of the continents together, they fit like a puzzle. If you look at mountains and match these when they are put together, mountains will be in similar places. The fossils found in Antarctica were fossils from warm climates. That could only be if all continents used to be one!

Answer:

Uniform dispersion.

Explanation:

The bobcats' population distribution would be a uniform dispersion because they are distributed in an area in a balanced way. That is to say, that there is space between them and that each bobcat establishes its personal space when hunting and for their daily life. As they are solitary animals, they do not live in groups and only associate with other bobcats to reproduce themselves.

Answer:

The chromosome pairs collect in a line across the middle of the cell.

Explaination: i have  a whole slide show i had to make for science i looked at that

Answer:

The intensive farming looks at increasing the yield in the given limited land space with a high dependency on fertilizers, labor, and machinery. ... But as extensive farming is remotely located, the labor cost, the production cost is higher. Also, the output calls for much more care and takes a while to yield the crops.

Explanation:

Answer:

Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique.

Answer:

Anecdotal reports suggest aoudad out compete native big game species for food, water, and cover as well as act as a disease reservoir on Texas landscapes. If significant overlap for resources and space are occurring among aoudad, desert bighorn and mule deer, aoudad could outcompete and outgrow native populations.

Explanation:

Answer: Absent a gentle breeze or mighty gale to circulate both warm and cold weather around the Earth, the planet would become a land of extremes. Areas around the Equator would become intensely hot and the poles would freeze solid. Whole ecosystems would change, and some would completely disappear.