Answer: When, the diaphragm pushes upward, it decreases the volume of the lungs, pushing air out.
Explanation:
In exhalation, the diaphragm move upward and the chest wall muscles relax, causing the chest cavity to get smaller and push air out of the respiratory system through the nose or mouth.
When you breathe in, the diaphragm moves downward toward the abdomen, and the rib muscles pull the ribs upward and outward. This makes the chest cavity bigger and pulls air through the nose or mouth into the lungs.
The fossil record includes all of the fossils discovered on Earth. How is the fossil record organized?
A. Size
B. Age
C. Shape
D. Color
Answer:
The answer is C. Shape.
Explanation:
Geologists use a method called radiometric dating to determine the exact age of rocks and fossils in each layer of rock.
Which of the following may be caused by molds?
Allergy
Pneumonia
Cystic fibrosis
Huntington's disease
Answer:
Pneumonia
Explanation:
This comes from the cells in pheumonia that make every thing around it turn to a mold like substance
9. Please use the image of embryo development below to answer the following questions. All of the animals below are vertebrates.
Which of the following shows the correct order of development for mammal embryos from left to right? (Left is early. Right is just before birth.) *
A. A
B. B
C. C
D. D
E. E
F. F
1.If the DNA is not copied correctly, what effect will it have on the protein that is made?
2. If the protein is not the correct structure, what effect will that have on the trait?
3. Why is it important for the structure of genes/DNA to remain normal and unchanged? What happens if a mutation happens? (Please include the following terms in your answer: gene, mutation, protein, trait).
The light from many stars can be seen from Earth. But there is a time delay between the time the light is emitted from the star and when we see it here on Earth. Which of the following statements best explains why there is a delay?
A. Stars twinkle, so they give off light at regular intervals.
B.The stars’ light is not bright enough to reach Earth immediately.
C.Stars are light-years away from Earth, so light takes time to reach our planet.
D.Earth’s atmosphere is too thick for light to reach the surface as soon as it is emitted.
HELP ME PLEASE!!!!!!
Answer:
C
Explanation:
How would you describe the relationship between the eagle and the hare? Are there any patterns in their interactions with one another?
Answer:
ExplaHow would you describe the relationship between the eagle and the hare? Are there any patterns in their interactions with one another?nation:
The author of the passage would most likely agree that
A
most scientists don't believe that plants release oxygen.
B
the hypothesis that plants need light has been disproven by evidence.
C
Bromthymol blue does not reliably indicate the presence of carbon
dioxide.
D
scientific investigations can show how the process of photosynthesis occurs.
What is an example of plant organism structure and functions that help plants survive in their ecosystem? [Question for fun :)]
A: Plant seeds are part of their reproduction process and help make sure the species survives.
B: Plants, as producers, make food with the help of their leaves and sunlight.
C: Plants lack structures that serve a function because plants are stationary.
D: Plants have specialized parts like thorns that help protect them from being eaten.
Answer:
A, B, and D can really all help.
Explanation:
Reproduction procceses help chances of the species growing into larger numbers. Plants being able to make their own food allows them a greater chance of surviving in harsher conditions, without the struggle of literally finding food. PLants with thorns, like roses, help prevents animals from attempting to bite it.
Identify each wave interaction based on how it changes direction.
The wave changes direction as it bends and scatters.
The wave changes direction as it changes its speed.
The wave changes direction at an angle equal to the angle of incidence.
The wave changes direction as it bends and scatters. - Refraction because it changes in direction of the waves that occur when waves travel from one medium to another.
The wave changes direction as it changes its speed. - Refraction because the waves change speed when they pass across the boundary between two different substances, such as the light waves refracting when they pass the air to glass.
The wave changes direction at an angle equal to the angle of incidence. -reflection because if a wave hits a mirror at an angel of 36, and it will be reflected at the same angel of 36.
Explanation: Hope this helps, Have a good day!
The wave changes direction as it bends and scatters is known as reflection, the wave changes direction as it changes its speed is known as refraction, and the wave changes direction at an angle equal to the angle of incidence is diffraction.
What are wave interactions?When waves interact, they can change direction in different ways. Here are the three ways that waves can change direction:
1. Reflection: The wave changes direction at an angle equal to the angle of incidence. This happens when a wave hits a barrier or a surface that it can't pass through. The angle of incidence is the angle between the incoming wave and the normal, which is an imaginary line perpendicular to the surface.
2. Refraction: The wave changes direction as it changes its speed. This happens when a wave passes from one medium to another, and the speed of the wave changes. When this happens, the wave bends towards or away from the normal, depending on the direction of the change in speed.
3. Diffraction: The wave changes direction as it bends and scatters. This happens when a wave encounters an obstacle or a gap in a barrier that is comparable in size to the wavelength of the wave. When this happens, the wave bends around the obstacle or spreads out through the gap.
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WILL GIVE BRAINLIEST! 50 POINTS
What causes air masses to move?
When prevailing westerlies shift directions and move toward the west.
Weather conditions change rapidly to produce storms.
A collision takes place between two natural wind patterns.
Long, narrow bands of wind blow in the upper atmosphere.
Answer:-The cause of the air masses to move is: The current of air and wind causes the air masses to move. The change in the air masses is the reason for the change in the weather.
Explanation:
Air masses are moved by differences in air pressure, which is caused by uneven heating of the earth's surface by the sun. This creates areas of high and low pressure, and air masses will move from areas of high pressure to areas of low pressure.
What is air mass ?An air mass is a large body of air in the atmosphere that has similar temperature and humidity characteristics throughout its horizontal extent.
Air masses are classified based on their source region, which can be over land or water and in different latitudes. As air masses move from their source regions, they can bring changes in weather conditions to the areas they move over.
The movement of air masses can also be influenced by the rotation of the earth, which causes the Coriolis effect. This effect causes air masses in the Northern Hemisphere to be deflected to the right, and air masses in the Southern Hemisphere to be deflected to the left.
The collision of two air masses with different properties, such as temperature and humidity, can also cause movement and create weather conditions.
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1. What do scientist think caused the Autumn Buttercups to disappear in that certain area?
Answer:
they took the cows out of the pasture thinking that the autumn buttercups would grow better then with the cows in the pasture.
Explanation:
The image below is an example of
A. reflection
B. refraction
C. absorption
D. diffusion
The hypothetical explosion that created the universe is called the big bash.
Please select the best answer from the choices provided
T
F
The needle of the compass is pointing toward the magnetic north pole of Earth. What would cause the needle of the compass to point toward the east? Explain why.
Compasses always point north. The magnetic pin in the compass aligns with the top of the planet's magnetic field and points in that direction. A broken compass points east.
Why does a broken compass points east?A strong magnetic field nearby may be the reason a compass points East. A compass may point in that direction if anything has a stronger magnetic attraction than the planet's magnetic field. Power lines, huge batteries, and magnetic metals like iron can cause interference. Their electromagnetic fields decrease quickly with distance.
A compass may point east if the needle's free movement is hindered. Compass needles are free-floating. It can't face North if it's damaged, bent, or blocked by debris. This may explain why the compass needle won't turn.
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Does anyone know an interesting fact about Protists?
Answer: Oh I know one fact about them! They cause diseases.
Hope it helps!
Explanation:
Can Someone help me with this :) and NO LINKS
Answer:
A
Explanation:
it's showing the elevations of different surface features
Which letter best represents the wavelength?
A
B
C
D
Study the image below, which shows the limb bones of various mammals. What might some scientists infer from this diagram? *
A. These mammals have similar bones in similar patterns. For this reason, they might share a common ancestor.
B. These mammals have very different limb shapes with different sizes of bones. For this reason, they probably do not share a common ancestor.
C. These mammals have similar bones in similar patterns. For this reason, they might have evolved from one another in a linear fashion.
D. These mammals live in many different environments and have different limbs to match. For this reason, they probably do not share a common ancestor.
Answer:
C. These mammals have similar bones in similar patterns. For this reason, they might have evolved from one another in a linear fashion.
Explanation:
Which of the following statements correctly explains how this process works?
how are you doing?
if you want you can vent in the comments or the answers.
Answer:
good I've been staying home and doing my school work
Answer:
I'm good. thank you for asking : )
Explanation:
Which foods are examples of complex carbohydrates? (Select all that apply.)
-white bread
-wheat
-cereal
-fruit juice concentrate
-oatmeal
-barley
Answer:
wheat,oatmeal,barley
Explanation:
Examples of Complex Carbs
Whole grains such as brown rice, wild rice, oatmeal, and whole-grain (rather than pearled) barley.
Grain-like foods such as quinoa (a seed) and buckwheat (a grass)
Starchy vegetables including potatoes, sweet potatoes, and corn.
The carbohydrates are defined as the main suppliers of energy to the body. Most of the carbohydrates come from the complex carbohydrates and natural sugars. Wheat, barley and oatmeal are examples of the complex carbohydrates.
What are complex carbohydrates?The carbohydrates are the macronutrients by which our body obtains the energy. They are called carbohydrates as they contain carbon, hydrogen and oxygen. The complex carbohydrates are made up of sugar molecules which are strung together in long, complex chains.
The complex carbohydrates are found in foods such as peas, beans, whole grains and vegetables. Both the simple and complex carbohydrates are turned to glucose in the body and are used as energy.
Here among the given examples, the complex carbohydrates are Wheat, barley and oatmeal and others are simple carbohydrates. The brown rice, oats, wild rice, starch etc. are also complex carbohydrates.
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Can Someone help me with this :)
Answer:
cool,nice
Explanation:
cool nice awesome math greatness
Answer:
what’s the question?
Explanation:
what Willa hypothesis become if it is supported by repeated experiments A a prediction B a scientific theory c a conclusion d a control
Answer:
It is B
Explanation:
B. Scientific theory
A scientific theory is an explanation supported by scientific evidence. How ever many times you test it, you will get the same result.
Answer:
a
Explanation:
you need to predict what will happen each time you do an experiment
help asap i'll give brainliest: where is radioactive waste/the waste from nuclear power plants stored?
Which of these organisms is not a chordate? earthworm snake sea squirt human
Answer:
Humans
Explanation:
Humans are not chordates because humans do not have a tail. Vertebrates do not have a notochord at any point in their development; instead, they have a vertebral column.
The organism that is not a chordate is the earthworm.
What are chordates?Chordates are a group of animals that possess four distinctive anatomical features at some point during their life cycle: a notochord, dorsal nerve cord, pharyngeal slits, and a post-tail. These features set chordates apart from other animal groups and have been critical in their evolutionary success.
Chordates include a wide variety of animals, ranging from fish, amphibians, and reptiles to birds and mammals, including humans. Chordates are found in aquatic environments such as oceans, rivers, and lakes, as well as on land, and play a critical role in many ecosystems as both predator and prey.
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Which foods would be classified as fats? (Select all that apply.) no links
-vegetables
-fruit
-dairy
-fish
-water
-nuts
Answer:
fish nuts
Explanation:
I don't have an explanation but it's true
The codes found in DNA, for an organism's traits, are copid by the cells m-RNA by producing special units called codons.
These codons are represented by...
A. Four random nitrogenous bases
B. An anti-codon called t-RNA
C. Base pairs A-T and C-G
D. Three nitrogenous bases in a sequence
Answer:
During this process, the DNA sequence of a gene is copied into RNA. Before transcription can take place, the DNA double helix must unwind near the gene that is getting transcribed. The region of opened-up DNA is called a transcription bubble.
Explanation:
whats the overall population of a bearded dragon? (over the whole world not a specific area)
Answer:
The official conservation status of the bearded dragon is Least Concern. The population of these reptiles remains steady in Australia. Plus, there are over 900 bearded dragons living in zoos throughout the world.
Explanation:
Answer:over 900 in zoos
Explanation:
Can Someone help me with this :)
Answer:
a.
Explanation:
contour maps show the elevations of an area.
Explain to the Econauts how their plans for the next biodome should be different.
Answer:
hope this helps :)
Explanation:
A biodome is a self-sustaining habitat for plants. Students will make a biodome in a recycled soda bottle and watch as their seeds grow. Students will observe and understand how the water in the biodome continues to recycle itself through condensation and evaporation.