Answer:
I would know if a chemical change is occurred if a new material is formed which doesn't share any characteristics of the reactants example if we expose iron to water and air a new material is formed (rust) which doesn't share any characteristics of iron,water or air.
Some hormones enter cells via
how does the respiratory system aid the digestive system
a. the lungs take in oxygen to aid in food digestion
b.the lungs take in carbon dioxide to aid in food digestion
c. the expand the diaphragm, which helps to push the stomach during digestion
d. the lungs contract the diaphragm, which helps to push the stomach during digestion
PLEASE HELP ASAP ! :)
Answer:
The respiratory and digestive systems work together to power the body. A properly functioning respiratory system delivers adequate oxygen to the blood. Because the digestive system breaks down food and uses muscular contractions to move food through the digestive tract, it needs oxygen to function properly.
Explanation:
good luck, much love <3
Which factor is most important in determining climate?
longitude
latitude
hours of daylight
time zone
Answer:
B latitude
Explanation:
instruction
ACTIVO
Describing the Energy on a Slide
CE
A
Each sentence describes potential and kinetic energy
at various locations on a slide. Complete each
statement by selecting the position of the object on the
slide.
An object at position vhas all kinetic energy
An object at position has all potential energy
An object at position has about half potential energy
and half kinetic energy,
B
С
Intro
Done
Answer:
An object at position A. has all potential energy
An object at position B. has about half potential and half kinetic energy
An object at position C. has all kinetic energy
Explanation:
I already did it and got all of them correct. I hope this helped!! :)
Question 1: A measure of the amount of matter in an object
Question 2: the force or speed with which something moves
1.momentum
2.collision
3.exert
4.mass
5.velocity
Answer:
question one is mass and question two is velocity
The movement of tectonic plates in two locations is described below:
Location A: Tectonic plates push together
Location B: Tectonic plates slide past each other
Which statement is most likely true?
Earthquakes may occur in both locations.
Volcanic eruptions may occur in both locations.
Earthquakes may occur in location A but not in location B.
Volcanic eruptions may occur in location B but not in location A.
Please help me out with this question if you help me I will give you the brain thing and extra points. 2/9 image below.
Answer:
B
Explanation:
Due to the force of Inertia
cells are made up mainly of proteins and carbohydrates how do these molecules function in the cell membrane
pls i need it!!
Substance X is extremely acidic. Substance Y is extremely basic. What would be formed if substance X and Y were mixed together?
A basic substance
An atomic bomb
A salt and water(H20)
An acidic substance
The product is
A salt and water (H2O)
After you set up a fish tank, you are sure to see algae growing in it. There is plenty of light, fertilizer in the form of fish droppings, and plants or glass for algae to cling to. You may see green strings of algae in the water or green spots growing on the glass. Your whole aquarium can turn green if you don’t stop the algae. To prevent the problem, you can add algae-eating fish or microorganisms to the water. Covering the aquarium for a few days will also kill algae, which need photosynthesis to survive.
Multi-celled algae grow into larger organisms through cell division. For one-celled algae, the purpose of cell division is
Answer: Reproduction.
How do you put this in your own words-
This amount depends on the latitude of the area. Latitude is the angular distance in degrees north and south from the equator. Different latitudes receive different amounts of solar energy.
(I'LL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST!)How do the properties of magnets allow them to be useful to society?
Brass is an alloy of copper and zinc. Bronze is an alloy of copper and tin. Alloys are commonly used in manufactured items because the properties of these metal mixtures are often superior to a pure metal.
Answer:
Correct, in structures of material you can calculate youngs modulus and the module of elastics and rigidity to calculate breaking points as well as structural integrity.I do quizzes and exams if your interested:)1. What direction does water move if a cell is placed in salt water?
2. What direction does water move if a cell (slightly salty) is placed in pure distilled water?
3. What direction does water move if the concentration of salt is the same inside and outside of the cell?
4. What organelle of the cell controls movement in and out of the cell?
Answer:
the water will move into the cell
Explanation:
the hypotonic solution has a higher water potential than that of the cell, so water will enter the cell from a region of higher water potential to a lower water potential down a water potential gradient across a partially permeable membrane via osmosis.
Answer:
left
Explanation:
Another science question because i dont know it so i need more help
Answer: Would be C
Explanation: It would be c because all the others aren’t true and it’s easier to study so you know the awnser btw
Which statement refers to convection?
Sunlight travels through space without the aid of fluids or solids.
Land and ocean absorb and re-emit heat from the sun.
Some of this energy is reflected off Earth's atmosphere.
Warm air rises and takes heat with it; eventually it cools and sinks.
Answer:
Your answer is D
Explanation:
Bicarbonate is a solution present in human blood. Bicarbonate helps to maintain our bodies pH and resists pH change. Bicarbonate is an example of a(n) ______________________.
Indicator
Buffer
Acid
Answer:
buffer
Explanation:
I need help! :)
-"When a sedimentary rock changes shape under heat and pressure,but does not melt completely,it becomes which of the following?
A:Igneous
B:Magma
C:Metamorphic
D:Volcanic
Answer:
Metamorphic!
Explanation:
I hated this science test too, but this is the answer. Good luck!:)
Brass is stronger than steel
True or False
What is the purpose of DNA?
Answer:
DNA contains the instructions needed for an organism to develop, survive and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies.
Explanation: Hope this helps. Branliest if you can plz.
Answer:
DNA contains the instructions needed for an organism to develop, survive and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies.
I hope it's helpful!
Draw a molecule and yeah that's basically it
Answer:
In the file! Hoped I helped!
To find S, the number of shared
electrons, recall that
S = N-A
What is S for silicon
tetrachloride, SiCl4?
Answer:
I'm rly confused but Si stands for silicon in the compound if that's what ur asking
hope it helps tho
Which energy source can be used as an energy source that may otherwise be thrown away?
solar
wind
water
biomass
or geothermal?
Which of the gases below is found at high levels near the surface of the ocean due to plant photosynthesis?
A.
nitrogen
B.
neon
C.
oxygen
D.
carbon dioxide
Please help me out with this question if you help me I will give you the brain thing and extra points. 8/9 image below.
Answer:
the answer is most likely b, sorry if im wrong.
Explanation:
.....
a clear liquid is poured into a beaker containing another clear liquid. A cloudy yellow substance forms, as if out of nowhere, but the rest of the liquid remains clear. what happened?
Answer: A precipitate is formed as a result of a double displacement reaction.
what is matter and what are some thing that are living and nonliving
Answer:
Living beings and non-living things both follows the physical and chemical general principles, like the thermodynamic laws, and they are constituted both by atoms and molecules, the basis of the natural organization of all known matter on Earth.
Answer: Matter is anything that has mass or takes up space, something non living is a rock something living is a tree
Explanation:
PLS HELP MY TEACHER IS MAKING ME DO THIS TODAY IF U ANSWER CORRECTLY I WILL HIVE BRAINLY
Glyptodon is a giant, armadillo-like animal that once lived on Earth and weighed over 2000 kilograms (kg) and lived almost exclusively in warm, wet coastal regions. In many ways it resembled the 4 kg armadillo that lives today. From the information given, what is the probable reason Glyptodon is not alive today?
A. Predators hunted the animal for food to the point of extinction.
B.The animal could not adapt to environmental changes.
C.The animal ate too much food.
D. The Glyptodon had genetic variation.
Answer:
i think it's B,i'm not sure hihi
Answer:
B i took that thing
Explanation:
Which of the following options best explains how less chlorophyll would affect the process of photosynthesis in plants?
Group of answer choices
It would limit the amound of light absorbed by the plant and decrease the amount of food the plant is able to produce for itself.
It would increase the rate of photosynthesis becasue of the increased production of food.
It would limit the amount of water plants are able to take in, resulting in a slower rate of photosynthesis.
It would increase the production of oxygen becasue the plant would need to work hard to feed themselves.
Answer:
It would limit the amount of light absorbed by the plant and decrease the amount of food the plant is able to produce for itself.
Explanation:
Two brothers are participating in a race. The older brother's average speed is 6 miles per hour and he finishes the race in 1 hour and 20 minutes. If the younger brother's average speed is 4 miles per hour, how long will it take him to complete the race?
A.) 45 min
B.) 2 Hours
C.) 4 Hours
D.) 30 min