Answer:Mechanical digestion physically breaks down food, like when teeth macerate food into a bolus. The stomach contracts and relaxes in a churning motion. ... Chemical digestion occurs when the bonds within larger food molecules are broken, creating smaller molecules that the body can use.May 30, 2017
Explanation:
Compared to the thickness of Earth, Earth's atmosphere is
about the same thickness.
B)
a thin layer surrounding the planet.
C)
a thick layer surrounding the planet.
D)
is about ten times thicker than the Earth itself.
Answer:
The first answer is correct(mark them brainlest
Explanation:
You are involved in a biodiversity survey and encounter a meadow of grass. How would you best describe the grass?
Answer:
Monocot
Explanation:
All flowering plants (Angiosperms) are classified into monocots and dicots. Monocotyledons are plants that have one seed leaf (cotyledon) when the seeds germinate. These plants also have other features such as, for example, parallel-veined leaves, adventitious root system, flower parts in multiples of threes (i.e., 3, 6 or 9 petals), etc. Poaceae (Gramineae), also known as grasses, is a large family of monocotyledonous plants. Therefore, all the grasses are monocot.
A large __________ __________ can increase the effectiveness of exchange surfaces in plants and animals. What two words complete the sentence?
answer plz
Answer:surface area
Explanation:
At the site of gas exchange in the lungs, where does the oxygen move?
O2 moves from the alveoli to the white blood cells.
O2 moves from the white blood cells to the alveoli.
O2 moves from the alveoli to the red blood cells.
O2 moves from the red blood cells to the alveoli.
Answer:
C. O2 moves from the alveoli to the red blood cells.
Explanation:
pls mark brainliest, u don't have to.
I got it correct on edge, have a good day :)
At the site of gas exchange in the lungs, oxygen moves from the alveoli to the red blood cells. Details about gaseous exchange can be found below.
What is gaseous exchange?Gaseous exchange is the process whereby gaseous substances especially oxygen and carbon dioxide move from one point to another in living systems.
Oxygen from the atmosphere goes into the body via the nose and is passed on to the lungs. The gases are exchanged in a compartment called alveoli or air sac.
The air sac then passes the oxygen to the red blood cells, which circulate it round the body to organs.
Learn more about gas exchange at: https://brainly.com/question/21766493
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How is a scientific law formed?
Answer:
For a scientific law to form there has to be a lot of experiments and information about that. This is to help them make sure that they are correct
Explanation:
According to the data in the graph, in which year did recycling have the greatest effect on total waste by percentage of waste recycled? Explain.
Answer:
The year 2008 had a percentage rate of 33.2% meanwhile the rest of the years going back to 1960 had a lower and lower percentage rate the farther back in time you went.
Plz help.
There has been much controversy on immunizing children (vaccinating them), especially in regards to autism. This has led to the reappearance of sometimes deadly diseases, suck as measles and mumps. What is your opinion? Should children be vaccinated against diseases or not? Write 1-2 complete sentences, stating your opinion and at least one fact-based reason baking your decision.
Answer:
Children should be vaccinated Beacuse,death rates for children who dont get vaccinated go down, and less children get diseases.
Explanation:
Would that work?
Answer:
I think that this is not accepted. This could hurt the world's population.
Explanation:
Please mark as brainliest.
Obsidians glassy texture indicates that it formed
Answer:
on the surface rapidly
Explanation:
Obsidian glassy texture indicates that the rock formed on the surface rapidly.
Like every other magma, the condition of the environment determines how the magma cools and solidifies.
When magma cools rapidly, nucleation centers will be difficult to come- by .. At nucleation centers, minerals aggregates and grows to form different grain sizes. When rapid cooling occurs, not enough time is given for the aggregation around the nucleus. This leaves a rock mass that is finely grained.9. The drawings represent the particles in a sample of
matter that underwent a change in state.
Based on the drawings, the change in state was most
likely
A. liquid to gas.
B. liquid to solid.
C. solid to gas.
D. solid to liquid.
Answer:
the answer is - d soild to liquid
Explanation:
y I choose d is when it is soild it will melt and it would become liquid
The stomach helps to digest food with
processes.
Answer:
Chemical and Physical Processes
Explanation:
I've watched Magic School Bus. pls mark brainliest
Easy 10 points . First one to answer gets brainly. Look at the picture & fill in the word that goes with the sentence .
Answer:
Its efficient use of cropland
Explanation:
Patty's brother accidentally drops his plate. It falls to the floor and breaks. What do we know about energy in this example?
Energy is changed from one form to another as the plate falls.
There is no change in the form of energy as the plate falls.
Energy is created when the plate is dropped.
Energy is destroyed when the plate breaks.
Answer:
energy is changed from one form to another as the plate falls
Explanation:
energy cannot be created or destroyed. the energy changes from PE TO KE
I need help please
Explanation:
A. Creativity
Creativity is a characteristic or trait in scientists or other answer seekers that allows them to think out of the box. It allows them to look through different perspectives to find new or other solutions to a problem.
Metamorphic rocks form when what is applied to an existing rock?
heat and pressure
rock and roll
gravity and steam
steam and time
Answer:
Heat and pressure i just took the test
Explanation:
Some plants require water, light, minerals, oxygen, and carbon dioxide to survive. These are examples of __________ that plants rely on for survival.
the subject is science
the options are
biotic factors
abiotic factors
both abiotic and biotic factors
non-abiotic factors
What is one way that cellular respiration differs from photosynthesis?
O The main source of energy in cellular respiration is glucose.
O The final product of cellular respiration is electromagnetic radiation.
The energy conversion in cellular respiration takes place in the chloroplast.
The main source of chemical energy in cellular respiration is water.
Answer:O The final product of cellular respiration is electromagnetic radiation.
The energy conversion in cellular respiration takes place in the chloroplast.
The main source of chemical energy in cellular respiration is water.
Explanation:
when is speciation complete?
Answer:
Speciation has become complete when organisms of one population do not recognize the mating call of another population and so mating does not occur. Which of the following statements about reproductive barriers and speciation is true? Speciation can occur with even a single gene mutation if that mutation involves reproductive barriers.
Explanation:
What cells are located in the center of the Trichoplax adhaerens?
a. cover cells
b. fiber cells
c. cylinder cells
d. gland cells
Answer:
B - Fiber Cells ( got it correct on my quiz)
Explanation:
Fiber cells are located in the center.
When an ecosystem loses biodiversity, how does it change?
A. becomes less resilient
B. becomes fragmented
C. more efficient
d. easier to live in.
ANSWER ASAP.
How does the following sentence contribute to the development of the main idea in the article?
This was strong evidence that the innate immune system is responsible for putting farm microbes to good use in the body.
A. It shows the connection between the Amish immune systems and their environment.
B. It develops the idea that the genes you are born with will determine if you get asthma or not.
C. It proves that the Amish are the healthiest group of Americans.
D. It gives an example of how farm microbes can hurt children.
Answer:
B
Explanation:
....................
Do plants do cellular respiration? Why or why not?
Answer:
Explanation:
Cellular respiration is the process that occurs in the mitochondria of organisms (animals and plants) to break down sugar in the presence of oxygen to release energy in the form of ATP. This process releases carbon dioxide and water as waste products. ... Plants have mitochondria and can perform cellular respiration.
Identify the image of strata changes that represents the principle of unconformities.
Answer: The one with horizontal and vertical lines (a)
Explanation: just took the test for Plato
Please mark as brainliest
Answer:
Top left image
Explanation:
Took test on plato
Which three organization levels are in a human stomach?
Muti choice
1) cell
2)organ
3)organ system
4)organism
5)tissue
Answer:
Cell Organ System Organ
Explanation:
cells make up everything as a building block of life.
Answer:
Cell, tissue, and organ.
Explanation:
A cell is an obvious one because it makes up the tissue, and it is needed in order to form an organ. Meaning tissue and cell would have to be included. Tissues witch are made of many cells form an organ, and an organ would be the human stomach/digestive system. It can't be organ system because a stomach can't be a whole system including the heart and ect. It can't be organism because a stomach isn't enough organ systems to create an organism.
BRAINLIST ASAP PLS HURRY
Marshmallow heats over a fire
•Radiation
•Conduction
•Convection
the sun causes water in a pond to evaporate.
•Radiation
•Conduction
•Convection
Hot air inflates a hot air balloon
•Radiatjon
•Conduction
•Convection
Answer:
1. Radiation
2. Radiation
3. Convection
Explanation:
Anyone pls help? I really need it.
A ---- is a multi-level network of feeding interactions, through which
both energy and matter move.
1. Food web
2. Food chain
3. Ecological Pyramid
4. None of the above
Answer:
1. Food web
HOPE IT HELP YOU
THANKS FOR POINTS
Identify and describe the structure of the human heart Create a personalized learning tool for your dissection of the sheep heart.
Answer:
It has four chambers.
Explanation:
The structure of human heart has four-chambers consist of two atrium and two ventricles. The right atrium receive blood from the whole body, while the ventricles pump blood to the whole body. The right atrium receives blood from the superior and inferior vena cavas. This blood then moves to the right ventricle where it is pumped to the lungs for purification or to dispose off carbondioxide and loaded the blood with oxygen. The left atrium receives blood from the lungs while the left ventricle pumps this blood to all parts of the body.
What is the minimum pH difference such that transfer of one H ion across the membrane would provide enough energy to make one molecule of ATP?
Answer:
The minimum difference is already the value of 1
Explanation:
When the pH is not balanced between the extracellular and intracellular environment, the cell could go into shock, that is why in the face of the minimal differences in pH between the internal or external environment, the proton pump is activated, this is how the hydrogen ion or positively charged protons cross the membrane and indirectly generate ATP molecules.
What characteristics do you think scientists use to classify rocks?
All living things begin as two cells. True False
Answer:
True
Explaination:
The idea that all living things are made up of cells which can only come from other living cells, is known as cell theory. All living things are made up of cells.
