Is a compound is a pure substance?
* I"m just wondering,
Answer:
yes
Explanation:
Compounds: are pure substances that are made up of more than l type of atom and can be broken down or decomposed into its individual elements by chemical methods, but cannot be separated by physical methods. The ratio of the elements in a compound are always constant. (Water is always 11 % Hydrogen and 89 % oxygen).
Answer:
Yes, it is.
Explanation:
Because there's no physical change that can separate compounds into more than one kind of substance.
THERE ARE MULTIPLE ANSWERS Which of the following systems use the cardiovascular system for the transport of materials? excretory system digestive system endocrine system respiratory system immune system
To keep food from entering your lungs, the body's digestive and respiratory systems must work together.
Answer:
I'm not sure if not sure what the question is but I'll take a stab and say it was a true/false. The answer is true.
Explanation:
There's a tiny flap of tissue and it covers the airway when we drink or walk. Sometimes it may spasm or contract late and this is why sometimes people say, "It went down the wrong pipe!" hope this helps.
hi i need a definition of adaptation, camouflage, habitat, hibernation, migration, mimicry, niche, predator, prey, reproduction, and species. !!! I will give you that crown thing if you get this correct thank you !!!
Answer:
species is a group of organisms of common ancestry able to reproduce only among. reproduction is Formation of new cells or a new individual. adaptation is A changing to fit new conditions. niche is ecology) the status of an organism within its environment and community (affecting its survival as a species). camouflage is camouflage. mimicry is Gaining protection by looking and acting like a different species. migration is Form of relocation diffusion involving permanent move to a new location. hibernation is A state of extremely low metabolism and respiration, accompanied by lower-than-normal body temperatures. predator is An animal that hunts other animals for food. prey is Animal hunted or caught for food. habitat is Place where an organism lives. organism is any living thing made up of one or more cells. invasive species is plants and animals that have migrated to places where they are not native. last non native species is not from an area, usually harmful.
Explanation:
Answer:
1. the action or process of adapting or being adapted
2. an animals natural coloring or form that enables it to blend into its surroundings
3. the natural home or environment of an animal,plant,or other organisms
4. the condition or period of an animal or plant spending the winter in a dormant state
5. seasonal movement of animals from one region to another
6. the action or art of imitating someone of something
7. a position or role taken by a kind of organism within its community
8. A animal that naturally preys on others
9. an animal that is hunted and killed by another for food
10. the production of offspring by sexual or asexual process
11. a group of living organisms consisting of similar individuals capable of exchanging Gene's or interbreeding
How did animals change to mimic others? this genuinely fascinates me and I want to know how they do it- like- the Viceroy Butterfly mimics the poisonous Monarch Butterfly. but- h o w - did they spend so much time watching the Monarch that they slowly became their look-alikes? how does mimicry happen over time....
my understanding is that they evolve over time, one could say adapt, to survive to mimic other creatures, im sure there are plenty of books you could borrow from a library or buy online to learn more, and there are different studies people have done you might be able to find free online!!!
Answer:
They evolve over time
Explanation:
Animals evolve over time to fit into their surroundings and to survive. This could take several generations though, because change doesn't happen over night. To put it simply, survival of the fittest. They have to fit in in order to survive, so they did exactly that.
Can you make water light enough to sink a cork? Explain.
i need friends and I need a question answered and i give brainliest too what 3 characteristics of a mammal
Answer:
There are many characteristics of a mammal their hair and furs, young are fed by milk, and sweat glanced.
whats a question about moral issue
Answer:a
Explanation:
Because it’s a
Think of a time when you were extremely scared or nervous and experienced an adrenaline rush. Write about your experience below.
One day I was walking down a river with my friends. After a while of walking a 3 feet snake jumped out of the river and scared the living out of us. The snake left but the adrenaline rush made me jump onto a tree without planning to jump on the tree.
Once when I was 9 my friends and I were walking by a pond when we got a bad vibe so we left. While we were walking we spotted a ditch and decided to go and check it out. So when we were there we kept hearing wierd noises but thought it was just some birds or something. (Keep in mind there was a sorta tunnel that went under the road that lead from the ditch to the pond.) So my friend said he saw something in the tunnel and when we looked in the tunnel there was someone there looking back at us so we of the ditch and went to the playground nearby. We haven't gone back since, lol.
What is the difference between endocytosis and exocytosis?
A.) Endocytosis moves water molecules and exocytosis moves molecules other than water.
B.) Endocytosis moves molecules other than water and exocytosis moves water molecules.
C.) Endocytosis moves molecules into a cell and exocytosis moves molecules out of a cell.
D.) Endocytosis moves molecules out of a cell and exocytosis moves molecules into a cell.
Answer: D
Explanation:
Endocytosis is the process of capturing a substance or particle from outside the cell by engulfing it with the cell membrane, and bringing it into the cell. Exocytosis describes the process of vesicles fusing with the plasma membrane and releasing their contents to the outside of the cell.
ILL VOTE BRAINLLEST!!!!!!
What are the benefits of living in a permanent settlement vs. a nomadic settlement? Include at least three benefits.
Answer:
One of the most obvious advantages is being able to grow and harvest crops on land as a result of agriculture, rather than relying on natural landscapes to provide. Another is safety and security — you do not have to traverse potentially dangerous routes and can defend your land from your home. Finally, urban cultural centres are not possible when moving from place to place as you have to take everything with you. Permanent settlement allows advanced civilisations to develop.
Answer:
One of the most obvious advantages is being able to grow and harvest crops on land as a result of agriculture, rather than relying on natural landscapes to provide. Another is safety and security — you do not have to traverse potentially dangerous routes and can defend your land from your home. Finally, urban cultural centers are not possible when moving from place to place as you have to take everything with you. Permanent settlement allows advanced civilisations to develop.
Explanation:
MULTIPULE ANSWERS!!!!! Which of the following systems use the cardiovascular system for the transport of materials? excretory system digestive system endocrine system respiratory system immune system
Answer:
digestive, endocrine and respiratory sytem
Explanation:
all transport materials around the body using the circulatory system (cardiovascular system).
the digestive system uses it to transport glucose and other nutrients from the digestive system to the cells.
the endocrine system uses it to transport hormones.
the respiratory system uses it to circulate blood and oxygen throughout the body
Answer:
I took the test the person above is right
Explanation:
Bob studies for a test and Jackie does not study. After the test, they compare their scores.
B : Independent Variable:
A : Dependent Variable:
Answer:
I: studying for a test
D: the score on the test
Explanation:
The independent variable would be studying for the test because it could change/it is controlled. The score on the test depends on how much they studying (i.e. dependent variable depends on the independent variable.)
HII GUYS GIVING BRAINLIEST what is a person who studies animals called
Answer:
a person who studies animals is called a zoologist.
Is water wet????? Is it or not?
If an electron is gained, the atom has a _____ charge.
negative
positive
Answer:
negative
Explanation:
electrons have a charge of -1
Answer:
with a negative charge
Explanation:
Question in picture WILL MARK BRAINLIEST!!!!
Answer:
extinction and change in a species community
Explanation:
if a change happens in a species community it takes a while for them to readjust to the new community.
Plant cells use photosynthesis to make the organic compounds that their mitochondria and other organelles need. Where do you think animal cells get these same organic compounds from? How do their cells use these compounds?
The organelles called mitochondria in cells are capable of generating energy. Plants need mitochondria to make ATP from different chemical sources, even though they derive their energy from the Sun.
What organic compound synthesize in animal cell for energy?Cellular respiration, a process that releases energy by mixing glucose and oxygen, is the method that all cells rely on to obtain their energy.
The process of releasing energy from meals takes place inside the body's cells during respiration.
As part of the respiration process, the body's cells absorb oxygen from the air, use it to produce energy by burning food, and then expel the waste materials (carbon dioxide and water) from the body.
Plants use the carbon dioxide exhaled during respiration for the process of photosynthesis. Animals do not use the carbon dioxide produced during breathing; instead, it is expelled outside the body.
Therefore, animal cells get these same organic compounds from cellular respiration.
Learn more about cellular respiration here:
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The cell membrane of this cell is permeable to water, but not to salt. What will immediately happen when the cell is placed into this solution?
A.) Salt will move into the cell and water will move out.
B.) Water and salt will move into the cell.
C.) Water will flow out of the cell.
D.)Water will flow into the cell.
IT THEM EASY POINTS
Answer:
A cell place in salty solution would loose water as water will move from cell to surrounding hypertonic medium by the process of osmosis causing the cell to shrivel up...
Explanation:
Answer: The answer is C.
Explanation:
Which element is chemically stable (inert)?
Answer:
Most Group 8 or 18 elements that appear in the last column of the periodic table (Helium, Neon, Argon, Krypton, Xenon and Radon) are classified as inert (or unreactive).
Explanation:
In science class, your teacher opens a perfume bottle to model cell transport. She asks the students to identify the type of cell transport and to explain the method of movement. Which of the following is the best explanation for this model? *
A.) This model demonstrates osmosis, because the perfume molecules are moving from an area of high concentration to low concentration.
B.) This model demonstrates osmosis, because the perfume molecules are moving from an area of low concentration to high concentration.
C.) This model demonstrates diffusion, because the perfume molecules are moving from an area of high concentration to low concentration.
D.) This model demonstrates diffusion, because the perfume molecules are moving from an area of low concentration to high concentration.
Complete the following analogy. General is to army as nervous system is to body. TRUE OR FALSE
Answer:
true
Explanation:
WILL MARK BRAINLIEST! What is the function of the wolverine in the mountain ecosystem?
Answer:
pThey are powerfully built and have short legs with wide feet for traveling across the snow. These animals are a vital part of ecosystems in northern climes, and a great ambassador of the wild places they inhabit and the melting snow they require.
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BRAINLIEST Can a ocean wave freeze and i give brainliest and i want friends
Answer:
A wave can freeze, but it would need a lower, more intense cold to freeze it. This is because it has little salt. And for 2, sure? I don't know?
Explanation:
Two cars are on a track and accelerate to 60 mph. At a certain point, both crs slam on the brakes. The distance it takes for each car to stop is then measured.
A : Independent Variable:
A : Dependent Variable:
Both cars have the same speed, and they both are dependent on each other. Therefore option B is correct.
What is a variable?A factor or characteristic that changes from time to time according to the conditions is called a variable. It is not consistent and fixed. Some examples of variables are height, age, speed of the car, grades, income, etc.
There are three types of variables and that are independent variables, dependent variables, and controlled variables. Independent variables are those variables that are not dependent on any other factor, dependent variables are those that are dependent on any other factor, and controlled variables are those variables that are held constant in research.
Both cars are dependent on each other to stop because they both have the same speed. Therefore option B is correct.
Learn more about variables, here:
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what is the answer to this question
Answer:
Explanation:
you already told me that
How are ciliated epithelial cells adapted to their function?
Super urgent best answer gets brainliest
Answer:
Ciliated cells are adapted in the respiratory tract to form an epithelial lining of coordinated metachronal ciliary activity that provides the propelling force for the transport of mucus along the airways.
HOPE IT HELPS !!
i need help with the reasoning part
Answer:
Just combine your answer with your evidence and you got your reasoning.
Explanation:
I hope this helps :))
Which of the following systems use the cardiovascular system for the transport of materials? excretory system digestive system endocrine system respiratory system immune system
Answer:
Endocrine System
Explanation:
In a step by step format, write about the process of the blood flow as it enters the heart until it leaves the heart. It should be at least 150 words.