Which of the following is a substance?
A) smoke
B) salt
C) granite
D) brass
Answer:
B) salt
Explanation:
It is considered a substance because it has a uniform and definite composition. Salt easily dissolves in water, but salt water cannot be classified as a substance because its composition can vary.
Hope this helped!!!
What is the difference between an endoskeleton and a exoskeleton? What types of animals have each?
Answer:
an endoskeleton is a skeleton on the inside of a living creature. look at endo like enter, its on the inside! an exoskeleton is on the outside of a living creature. think of exo as exit, its on the outside! animals with endoskeletons are like dogs, cats, fish, and raccoons. animals with exoskeletons are like spiders, ants, crabs, and snails.
please give brainliest :)
What do these two changes have in common?
saliva breaking down a piece of bread
a penny tarnishing
Select all that apply.
both are caused by heating
both are chemical changes
both conserve mass
both are changes of state
Answer: both are changes of state and both are changes of state
Explanation:
.
The two changes like the Saliva breaking down a piece of bread and a penny tarnishing involves chemical change. Thus, the correct option for this question is B.
What do you mean by Chemical change?A Chemical change may be defined as a type of change that significantly involves the production of new substances from old ones by combining each other with different properties.
The action of saliva is stimulated by the action of the enzyme salivary amylase which hydrolyzed the starch into maltose, a disaccharide. A penny tarnishing involves the dissolution of copper oxide in a mixture of weak acid and table salt.
Therefore, the given two changes have in common that both are chemical changes. Thus, the correct option for this question is B.
To learn more about Chemical changes, refer to the link:
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How is information passed between neurons in the body?
A. through impulses
B. through motor neurons
C. through interneurons
D. through sensory neurons
Answer:
The place where the axon of one neuron meets the dendrite of another is called a synapse. Neurotransmitters travel across the synapse between the axon and the dendrite of the next neuron. Neurotransmitters bind to the membrane of the dendrite. The binding allows the nerve impulse to travel through the receiving neuron.
Explanation:
Answer:
D. sensory neurons
do u ever wanna be left alone but u cant?
Answer:
No, I'm a lonely person
Answer:
no I am lonely took brother
How would an animal feel after they hibernate?
A:Tired
B:Fat
C:Hungry
D:Warm
Please don’t do links and please try YOUR best I won’t be angry if u get it wrong at least u tried ur best thank you
Answer: Hungry
Explanation:
They've just slept for months, they haven't eaten
When its central nervous system sounds the alarm, a hibernator starts to shiver.
I’m guessing C...
This back-and-forth is exhausting, and hibernators do it with little to no food and water.
Info: I ALMOST HAVE 200 QUESTIONS ANSWERED!
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Which of the following statements is true?
Options:
A. Gene flow evens out genetic differences between populations.
B. Genetic drift increases the genetic differences between populations.
C. Natural selection, mutation, and genetic drift are random events.
D. The bottleneck effect increases the genetic diversity of a population.
Answer:
Natural selection, mutation, and genetic drift are random events.
Explanation:
A mechanism of evolution in which the frequencies of alleles of a population change with generations because of sampling error is known as genetic drift. It takes place in all the populations of non-infinite size, however, its influences are strongest in small populations.
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As a tornado passes across the farmland, it can blow away as much as 5cm of topsoil. What impact does this most likely have on the local ecosystem?
Answer:
i Belive the anwer is D
Explanation:
Which diagram correctly portrays the direction of the prevailing winds in each latitude band? (look at the pictures)
A.
E.
B.
C.
D.
Option C and E are the diagram which correctly portrays the direction of the prevailing winds in each latitude band
what is latitude?Latitude and longitude are two most important terms which are the coordinates that, together, tells exactly location of an object on the surface of the Earth.
Latitude tells the position of the object or anything between the North Pole and the South Pole where equator is zero degrees, the North Pole is 90 degrees North, and the South Pole is 90 degrees .
Parallels called as latitude lines which run across the Earth from east to west at a constant latitude, for example would be the equator, which is at zero degrees of latitude
Latitude is major indicator of navigation because the path of the sun is different depending on the object's latitude, so it varies based on the time of year.
For more details latitude, visit
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Why does the moon appear to change its shape as seen from earth?
*by my profile its actually not biology cause it didn'*t have science subject*
Explain how crustal deformation builds land forms.
A. When two tectonic plates start to push into each other they can rise up and build mountains, or sink under and create deep valleys.
B. When wind and rain slowly wear away rock, they leave behind new looking land forms.
C. When sediments are laid down over vast areas the forces involved create rock over a very long period of time.
D. When two tectonic plates slide away from each other the inner liquid layer of the mantle comes to the surface as lava and creates new islands.
Answer:
A. When two tectonic plates start to push into each other they can rise up and build mountains, or sink under and create deep valleys.
Explanation:
It is true
The best answer gets brainliest
Please help me answer these two questions
Why do you think certain cell types look the way they do? What do you think the relationship is between a cell’s structure and its function?
Please no links, thank you
Answer:
i think they look like that so the prisoners are see able and cant do any thing to escape.because the guards are walking by twenty four seven
Explanation:
Tell me a tertiary consumer that lives in streams or rivers. Tertiary consumer is an animal that eats other animals. this is how it will be:
producers --> primary consumers --> second consumers --> tertiary consumers.
This is a major grade, please help
Answer:
l don't know l just forgot
